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   1 /*-------------------------------------------------------------------------
   2
   3   pcode.c - post code generation
   4
   5    Written By -  Scott Dattalo scott@dattalo.com
   6    Ported to PIC16 By -  Martin Dubuc m.dubuc@rogers.com
   7
   8    This program is free software; you can redistribute it and/or modify it
   9    under the terms of the GNU General Public License as published by the
  10    Free Software Foundation; either version 2, or (at your option) any
  11    later version.
  12
  13    This program is distributed in the hope that it will be useful,
  14    but WITHOUT ANY WARRANTY; without even the implied warranty of
  15    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16    GNU General Public License for more details.
  17
  18    You should have received a copy of the GNU General Public License
  19    along with this program; if not, write to the Free Software
  20    Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  21 -------------------------------------------------------------------------*/
  22
  23 #include <stdio.h>
  24
  25 #include "common.h"   // Include everything in the SDCC src directory
  26 #include "newalloc.h"
  27
  28
  29 #include "main.h"
  30 #include "pcode.h"
  31 #include "pcodeflow.h"
  32 #include "ralloc.h"
  33 #include "device.h"
  34
  35 #if defined(__BORLANDC__) || defined(_MSC_VER)
  36 #define STRCASECMP stricmp
  37 #else
  38 #define STRCASECMP strcasecmp
  39 #endif
  40
  41 /****************************************************************/
  42 /****************************************************************/
  43
  44 static peepCommand peepCommands[] = {
  45
  46   {NOTBITSKIP, "_NOTBITSKIP_"},
  47   {BITSKIP, "_BITSKIP_"},
  48   {INVERTBITSKIP, "_INVERTBITSKIP_"},
  49
  50   {-1, NULL}
  51 };
  52
  53
  54
  55 // Eventually this will go into device dependent files:
  56 pCodeOpReg pic16_pc_status    = {{PO_STATUS,  "STATUS"}, -1, NULL,0,NULL};
  57 pCodeOpReg pic16_pc_intcon    = {{PO_INTCON,  "INTCON"}, -1, NULL,0,NULL};
  58 pCodeOpReg pic16_pc_pcl       = {{PO_PCL,     "PCL"}, -1, NULL,0,NULL};
  59 pCodeOpReg pic16_pc_pclath    = {{PO_PCLATH,  "PCLATH"}, -1, NULL,0,NULL};
  60 pCodeOpReg pic16_pc_pclatu    = {{PO_PCLATU,  "PCLATU"}, -1, NULL,0,NULL}; // patch 14
  61 pCodeOpReg pic16_pc_wreg      = {{PO_WREG,    "WREG"}, -1, NULL,0,NULL};
  62 pCodeOpReg pic16_pc_bsr       = {{PO_BSR,     "BSR"}, -1, NULL,0,NULL};
  63
  64 pCodeOpReg pic16_pc_tosl      = {{PO_SFR_REGISTER,   "TOSL"}, -1, NULL,0,NULL}; // patch 14
  65 pCodeOpReg pic16_pc_tosh      = {{PO_SFR_REGISTER,   "TOSH"}, -1, NULL,0,NULL}; //
  66 pCodeOpReg pic16_pc_tosu      = {{PO_SFR_REGISTER,   "TOSU"}, -1, NULL,0,NULL}; // patch 14
  67
  68 pCodeOpReg pic16_pc_tblptrl   = {{PO_SFR_REGISTER,   "TBLPTRL"}, -1, NULL,0,NULL}; // patch 15
  69 pCodeOpReg pic16_pc_tblptrh   = {{PO_SFR_REGISTER,   "TBLPTRH"}, -1, NULL,0,NULL}; //
  70 pCodeOpReg pic16_pc_tblptru   = {{PO_SFR_REGISTER,   "TBLPTRU"}, -1, NULL,0,NULL}; //
  71 pCodeOpReg pic16_pc_tablat    = {{PO_SFR_REGISTER,   "TABLAT"}, -1, NULL,0,NULL};  // patch 15
  72
  73 //pCodeOpReg pic16_pc_fsr0      = {{PO_FSR0,    "FSR0"}, -1, NULL,0,NULL}; //deprecated !
  74
  75 pCodeOpReg pic16_pc_fsr0l       = {{PO_FSR0,    "FSR0L"}, -1, NULL, 0, NULL};
  76 pCodeOpReg pic16_pc_fsr0h       = {{PO_FSR0,    "FSR0H"}, -1, NULL, 0, NULL};
  77 pCodeOpReg pic16_pc_fsr1l       = {{PO_FSR0,    "FSR1L"}, -1, NULL, 0, NULL};
  78 pCodeOpReg pic16_pc_fsr1h       = {{PO_FSR0,    "FSR1H"}, -1, NULL, 0, NULL};
  79 pCodeOpReg pic16_pc_fsr2l       = {{PO_FSR0,    "FSR2L"}, -1, NULL, 0, NULL};
  80 pCodeOpReg pic16_pc_fsr2h       = {{PO_FSR0,    "FSR2H"}, -1, NULL, 0, NULL};
  81
  82 pCodeOpReg pic16_pc_indf0       = {{PO_INDF0,   "INDF0"}, -1, NULL,0,NULL};
  83 pCodeOpReg pic16_pc_postinc0    = {{PO_INDF0,   "POSTINC0"}, -1, NULL, 0, NULL};
  84 pCodeOpReg pic16_pc_postdec0    = {{PO_INDF0,   "POSTDEC0"}, -1, NULL, 0, NULL};
  85 pCodeOpReg pic16_pc_preinc0     = {{PO_INDF0,   "PREINC0"}, -1, NULL, 0, NULL};
  86 pCodeOpReg pic16_pc_plusw0      = {{PO_INDF0,   "PLUSW0"}, -1, NULL, 0, NULL};
  87
  88 pCodeOpReg pic16_pc_indf1       = {{PO_INDF0,   "INDF1"}, -1, NULL,0,NULL};
  89 pCodeOpReg pic16_pc_postinc1    = {{PO_INDF0,   "POSTINC1"}, -1, NULL, 0, NULL};
  90 pCodeOpReg pic16_pc_postdec1    = {{PO_INDF0,   "POSTDEC1"}, -1, NULL, 0, NULL};
  91 pCodeOpReg pic16_pc_preinc1     = {{PO_INDF0,   "PREINC1"}, -1, NULL, 0, NULL};
  92 pCodeOpReg pic16_pc_plusw1      = {{PO_INDF0,   "PLUSW1"}, -1, NULL, 0, NULL};
  93
  94 pCodeOpReg pic16_pc_indf2       = {{PO_INDF0,   "INDF2"}, -1, NULL,0,NULL};
  95 pCodeOpReg pic16_pc_postinc2    = {{PO_INDF0,   "POSTINC2"}, -1, NULL, 0, NULL};
  96 pCodeOpReg pic16_pc_postdec2    = {{PO_INDF0,   "POSTDEC2"}, -1, NULL, 0, NULL};
  97 pCodeOpReg pic16_pc_preinc2     = {{PO_INDF0,   "PREINC2"}, -1, NULL, 0, NULL};
  98 pCodeOpReg pic16_pc_plusw2      = {{PO_INDF0,   "PLUSW2"}, -1, NULL, 0, NULL};
  99
 100 pCodeOpReg pic16_pc_prodl       = {{PO_PRODL, "PRODL"}, -1, NULL, 0, NULL};
 101 pCodeOpReg pic16_pc_prodh       = {{PO_PRODH, "PRODH"}, -1, NULL, 0, NULL};
 102
 103 pCodeOpReg pic16_pc_kzero     = {{PO_GPR_REGISTER,  "KZ"}, -1, NULL,0,NULL};
 104 pCodeOpReg pic16_pc_wsave     = {{PO_GPR_REGISTER,  "WSAVE"}, -1, NULL,0,NULL};
 105 pCodeOpReg pic16_pc_ssave     = {{PO_GPR_REGISTER,  "SSAVE"}, -1, NULL,0,NULL};
 106
 107 static int mnemonics_initialized = 0;
 108
 109
 110 static hTab *pic16MnemonicsHash = NULL;
 111 static hTab *pic16pCodePeepCommandsHash = NULL;
 112
 113 static pFile *the_pFile = NULL;
 114 static pBlock *pb_dead_pcodes = NULL;
 115
 116 /* Hardcoded flags to change the behavior of the PIC port */
 117 static int peepOptimizing = 1;        /* run the peephole optimizer if nonzero */
 118 static int functionInlining = 1;      /* inline functions if nonzero */
 119 int pic16_debug_verbose = 0;                /* Set true to inundate .asm file */
 120
 121 int pic16_pcode_verbose = 0;
 122
 123 //static int GpCodeSequenceNumber = 1;
 124 static int GpcFlowSeq = 1;
 125
 126 extern void pic16_RemoveUnusedRegisters(void);
 127 extern void pic16_RegsUnMapLiveRanges(void);
 128 extern void pic16_BuildFlowTree(pBlock *pb);
 129 extern void pic16_pCodeRegOptimizeRegUsage(int level);
 130 extern int pic16_picIsInitialized(void);
 131 extern void SAFE_snprintf(char **str, size_t *size, const char *format, ...);
 132 extern int mnem2key(char const *mnem);
 133
 134 /****************************************************************/
 135 /*                      Forward declarations                    */
 136 /****************************************************************/
 137
 138 void pic16_unlinkpCode(pCode *pc);
 139 #if 0
 140 static void genericAnalyze(pCode *pc);
 141 static void AnalyzeGOTO(pCode *pc);
 142 static void AnalyzeSKIP(pCode *pc);
 143 static void AnalyzeRETURN(pCode *pc);
 144 #endif
 145
 146 static void genericDestruct(pCode *pc);
 147 static void genericPrint(FILE *of,pCode *pc);
 148
 149 static void pCodePrintLabel(FILE *of, pCode *pc);
 150 static void pCodePrintFunction(FILE *of, pCode *pc);
 151 static void pCodeOpPrint(FILE *of, pCodeOp *pcop);
 152 static char *pic16_get_op_from_instruction( pCodeInstruction *pcc);
 153 char *pic16_get_op(pCodeOp *pcop,char *buff,size_t buf_size);
 154 int pCodePeepMatchLine(pCodePeep *peepBlock, pCode *pcs, pCode *pcd);
 155 int pic16_pCodePeepMatchRule(pCode *pc);
 156 static void pBlockStats(FILE *of, pBlock *pb);
 157 static pBlock *newpBlock(void);
 158 extern void pic16_pCodeInsertAfter(pCode *pc1, pCode *pc2);
 159 extern pCodeOp *pic16_popCopyReg(pCodeOpReg *pc);
 160 pCodeOp *pic16_popCopyGPR2Bit(pCodeOp *pc, int bitval);
 161 void pic16_pCodeRegMapLiveRanges(pBlock *pb);
 162
 163 char *dumpPicOptype(PIC_OPTYPE type);
 164
 165 /****************************************************************/
 166 /*                    PIC Instructions                          */
 167 /****************************************************************/
 168
 169 pCodeInstruction pic16_pciADDWF = {
 170   {PC_OPCODE, NULL, NULL, 0, NULL,
 171    //   genericAnalyze,
 172    genericDestruct,
 173    genericPrint},
 174   POC_ADDWF,
 175   "ADDWF",
 176   NULL, // from branch
 177   NULL, // to branch
 178   NULL, // label
 179   NULL, // operand
 180   NULL, // flow block
 181   NULL, // C source
 182   3,    // num ops
 183   1,0,  // dest, bit instruction
 184   0,0,  // branch, skip
 185   0,    // literal operand
 186   1,    // RAM access bit
 187   0,    // fast call/return mode select bit
 188   0,    // second memory operand
 189   0,    // second literal operand
 190   POC_NOP,
 191   (PCC_W | PCC_REGISTER),   // inCond
 192   (PCC_REGISTER | PCC_Z), // outCond
 193   PCI_MAGIC
 194 };
 195
 196 pCodeInstruction pic16_pciADDFW = {
 197   {PC_OPCODE, NULL, NULL, 0, NULL,
 198    //   genericAnalyze,
 199    genericDestruct,
 200    genericPrint},
 201   POC_ADDFW,
 202   "ADDWF",
 203   NULL, // from branch
 204   NULL, // to branch
 205   NULL, // label
 206   NULL, // operand
 207   NULL, // flow block
 208   NULL, // C source
 209   3,    // num ops
 210   0,0,  // dest, bit instruction
 211   0,0,  // branch, skip
 212   0,    // literal operand
 213   1,    // RAM access bit
 214   0,    // fast call/return mode select bit
 215   0,    // second memory operand
 216   0,    // second literal operand
 217   POC_NOP,
 218   (PCC_W | PCC_REGISTER),   // inCond
 219   (PCC_W | PCC_Z), // outCond
 220   PCI_MAGIC
 221 };
 222
 223 pCodeInstruction pic16_pciADDWFC = { // mdubuc - New
 224   {PC_OPCODE, NULL, NULL, 0, NULL,
 225    //   genericAnalyze,
 226    genericDestruct,
 227    genericPrint},
 228   POC_ADDWFC,
 229   "ADDWFC",
 230   NULL, // from branch
 231   NULL, // to branch
 232   NULL, // label
 233   NULL, // operand
 234   NULL, // flow block
 235   NULL, // C source
 236   3,    // num ops
 237   1,0,  // dest, bit instruction
 238   0,0,  // branch, skip
 239   0,    // literal operand
 240   1,    // RAM access bit
 241   0,    // fast call/return mode select bit
 242   0,    // second memory operand
 243   0,    // second literal operand
 244   POC_NOP,
 245   (PCC_W | PCC_REGISTER | PCC_C),   // inCond
 246   (PCC_REGISTER | PCC_Z), // outCond
 247   PCI_MAGIC
 248 };
 249
 250 pCodeInstruction pic16_pciADDFWC = {
 251   {PC_OPCODE, NULL, NULL, 0, NULL,
 252    //   genericAnalyze,
 253    genericDestruct,
 254    genericPrint},
 255   POC_ADDFWC,
 256   "ADDWFC",
 257   NULL, // from branch
 258   NULL, // to branch
 259   NULL, // label
 260   NULL, // operand
 261   NULL, // flow block
 262   NULL, // C source
 263   3,    // num ops
 264   0,0,  // dest, bit instruction
 265   0,0,  // branch, skip
 266   0,    // literal operand
 267   1,    // RAM access bit
 268   0,    // fast call/return mode select bit
 269   0,    // second memory operand
 270   0,    // second literal operand
 271   POC_NOP,
 272   (PCC_W | PCC_REGISTER | PCC_C),   // inCond
 273   (PCC_W | PCC_Z), // outCond
 274   PCI_MAGIC
 275 };
 276
 277 pCodeInstruction pic16_pciADDLW = {
 278   {PC_OPCODE, NULL, NULL, 0, NULL,
 279    //   genericAnalyze,
 280    genericDestruct,
 281    genericPrint},
 282   POC_ADDLW,
 283   "ADDLW",
 284   NULL, // from branch
 285   NULL, // to branch
 286   NULL, // label
 287   NULL, // operand
 288   NULL, // flow block
 289   NULL, // C source
 290   1,    // num ops
 291   0,0,  // dest, bit instruction
 292   0,0,  // branch, skip
 293   1,    // literal operand
 294   0,    // RAM access bit
 295   0,    // fast call/return mode select bit
 296   0,    // second memory operand
 297   0,    // second literal operand
 298   POC_NOP,
 299   (PCC_W | PCC_LITERAL),   // inCond
 300   (PCC_W | PCC_Z | PCC_C | PCC_DC | PCC_OV | PCC_N), // outCond
 301   PCI_MAGIC
 302 };
 303
 304 pCodeInstruction pic16_pciANDLW = {
 305   {PC_OPCODE, NULL, NULL, 0, NULL,
 306    //   genericAnalyze,
 307    genericDestruct,
 308    genericPrint},
 309   POC_ANDLW,
 310   "ANDLW",
 311   NULL, // from branch
 312   NULL, // to branch
 313   NULL, // label
 314   NULL, // operand
 315   NULL, // flow block
 316   NULL, // C source
 317   1,    // num ops
 318   0,0,  // dest, bit instruction
 319   0,0,  // branch, skip
 320   1,    // literal operand
 321   0,    // RAM access bit
 322   0,    // fast call/return mode select bit
 323   0,    // second memory operand
 324   0,    // second literal operand
 325   POC_NOP,
 326   (PCC_W | PCC_LITERAL),   // inCond
 327   (PCC_W | PCC_Z | PCC_N), // outCond
 328   PCI_MAGIC
 329 };
 330
 331 pCodeInstruction pic16_pciANDWF = {
 332   {PC_OPCODE, NULL, NULL, 0, NULL,
 333    //   genericAnalyze,
 334    genericDestruct,
 335    genericPrint},
 336   POC_ANDWF,
 337   "ANDWF",
 338   NULL, // from branch
 339   NULL, // to branch
 340   NULL, // label
 341   NULL, // operand
 342   NULL, // flow block
 343   NULL, // C source
 344   3,    // num ops
 345   1,0,  // dest, bit instruction
 346   0,0,  // branch, skip
 347   0,    // literal operand
 348   1,    // RAM access bit
 349   0,    // fast call/return mode select bit
 350   0,    // second memory operand
 351   0,    // second literal operand
 352   POC_NOP,
 353   (PCC_W | PCC_REGISTER),   // inCond
 354   (PCC_REGISTER | PCC_Z | PCC_N), // outCond
 355   PCI_MAGIC
 356 };
 357
 358 pCodeInstruction pic16_pciANDFW = {
 359   {PC_OPCODE, NULL, NULL, 0, NULL,
 360    //   genericAnalyze,
 361    genericDestruct,
 362    genericPrint},
 363   POC_ANDFW,
 364   "ANDWF",
 365   NULL, // from branch
 366   NULL, // to branch
 367   NULL, // label
 368   NULL, // operand
 369   NULL, // flow block
 370   NULL, // C source
 371   3,    // num ops
 372   0,0,  // dest, bit instruction
 373   0,0,  // branch, skip
 374   0,    // literal operand
 375   1,    // RAM access bit
 376   0,    // fast call/return mode select bit
 377   0,    // second memory operand
 378   0,    // second literal operand
 379   POC_NOP,
 380   (PCC_W | PCC_REGISTER),   // inCond
 381   (PCC_W | PCC_Z) // outCond
 382 };
 383
 384 pCodeInstruction pic16_pciBC = { // mdubuc - New
 385   {PC_OPCODE, NULL, NULL, 0, NULL,
 386    //   genericAnalyze,
 387    genericDestruct,
 388    genericPrint},
 389   POC_BC,
 390   "BC",
 391   NULL, // from branch
 392   NULL, // to branch
 393   NULL, // label
 394   NULL, // operand
 395   NULL, // flow block
 396   NULL, // C source
 397   1,    // num ops
 398   0,0,  // dest, bit instruction
 399   1,0,  // branch, skip
 400   0,    // literal operand
 401   0,    // RAM access bit
 402   0,    // fast call/return mode select bit
 403   0,    // second memory operand
 404   0,    // second literal operand
 405   POC_NOP,
 406   (PCC_REL_ADDR | PCC_C),   // inCond
 407   PCC_NONE,    // outCond
 408   PCI_MAGIC
 409 };
 410
 411 pCodeInstruction pic16_pciBCF = {
 412   {PC_OPCODE, NULL, NULL, 0, NULL,
 413    //   genericAnalyze,
 414    genericDestruct,
 415    genericPrint},
 416   POC_BCF,
 417   "BCF",
 418   NULL, // from branch
 419   NULL, // to branch
 420   NULL, // label
 421   NULL, // operand
 422   NULL, // flow block
 423   NULL, // C source
 424   3,    // num ops
 425   1,1,  // dest, bit instruction
 426   0,0,  // branch, skip
 427   0,    // literal operand
 428   1,    // RAM access bit
 429   0,    // fast call/return mode select bit
 430   0,    // second memory operand
 431   0,    // second literal operand
 432   POC_BSF,
 433   (PCC_REGISTER | PCC_EXAMINE_PCOP),   // inCond
 434   PCC_REGISTER, // outCond
 435   PCI_MAGIC
 436 };
 437
 438 pCodeInstruction pic16_pciBN = { // mdubuc - New
 439   {PC_OPCODE, NULL, NULL, 0, NULL,
 440    //   genericAnalyze,
 441    genericDestruct,
 442    genericPrint},
 443   POC_BN,
 444   "BN",
 445   NULL, // from branch
 446   NULL, // to branch
 447   NULL, // label
 448   NULL, // operand
 449   NULL, // flow block
 450   NULL, // C source
 451   1,    // num ops
 452   0,0,  // dest, bit instruction
 453   1,0,  // branch, skip
 454   0,    // literal operand
 455   0,    // RAM access bit
 456   0,    // fast call/return mode select bit
 457   0,    // second memory operand
 458   0,    // second literal operand
 459   POC_NOP,
 460   (PCC_REL_ADDR | PCC_N),   // inCond
 461   PCC_NONE   , // outCond
 462   PCI_MAGIC
 463 };
 464
 465 pCodeInstruction pic16_pciBNC = { // mdubuc - New
 466   {PC_OPCODE, NULL, NULL, 0, NULL,
 467    //   genericAnalyze,
 468    genericDestruct,
 469    genericPrint},
 470   POC_BNC,
 471   "BNC",
 472   NULL, // from branch
 473   NULL, // to branch
 474   NULL, // label
 475   NULL, // operand
 476   NULL, // flow block
 477   NULL, // C source
 478   1,    // num ops
 479   0,0,  // dest, bit instruction
 480   1,0,  // branch, skip
 481   0,    // literal operand
 482   0,    // RAM access bit
 483   0,    // fast call/return mode select bit
 484   0,    // second memory operand
 485   0,    // second literal operand
 486   POC_NOP,
 487   (PCC_REL_ADDR | PCC_C),   // inCond
 488   PCC_NONE   , // outCond
 489   PCI_MAGIC
 490 };
 491
 492 pCodeInstruction pic16_pciBNN = { // mdubuc - New
 493   {PC_OPCODE, NULL, NULL, 0, NULL,
 494    //   genericAnalyze,
 495    genericDestruct,
 496    genericPrint},
 497   POC_BNN,
 498   "BNN",
 499   NULL, // from branch
 500   NULL, // to branch
 501   NULL, // label
 502   NULL, // operand
 503   NULL, // flow block
 504   NULL, // C source
 505   1,    // num ops
 506   0,0,  // dest, bit instruction
 507   1,0,  // branch, skip
 508   0,    // literal operand
 509   0,    // RAM access bit
 510   0,    // fast call/return mode select bit
 511   0,    // second memory operand
 512   0,    // second literal operand
 513   POC_NOP,
 514   (PCC_REL_ADDR | PCC_N),   // inCond
 515   PCC_NONE   , // outCond
 516   PCI_MAGIC
 517 };
 518
 519 pCodeInstruction pic16_pciBNOV = { // mdubuc - New
 520   {PC_OPCODE, NULL, NULL, 0, NULL,
 521    //   genericAnalyze,
 522    genericDestruct,
 523    genericPrint},
 524   POC_BNOV,
 525   "BNOV",
 526   NULL, // from branch
 527   NULL, // to branch
 528   NULL, // label
 529   NULL, // operand
 530   NULL, // flow block
 531   NULL, // C source
 532   1,    // num ops
 533   0,0,  // dest, bit instruction
 534   1,0,  // branch, skip
 535   0,    // literal operand
 536   0,    // RAM access bit
 537   0,    // fast call/return mode select bit
 538   0,    // second memory operand
 539   0,    // second literal operand
 540   POC_NOP,
 541   (PCC_REL_ADDR | PCC_OV),   // inCond
 542   PCC_NONE   , // outCond
 543   PCI_MAGIC
 544 };
 545
 546 pCodeInstruction pic16_pciBNZ = { // mdubuc - New
 547   {PC_OPCODE, NULL, NULL, 0, NULL,
 548    //   genericAnalyze,
 549    genericDestruct,
 550    genericPrint},
 551   POC_BNZ,
 552   "BNZ",
 553   NULL, // from branch
 554   NULL, // to branch
 555   NULL, // label
 556   NULL, // operand
 557   NULL, // flow block
 558   NULL, // C source
 559   1,    // num ops
 560   0,0,  // dest, bit instruction
 561   1,0,  // branch, skip
 562   0,    // literal operand
 563   0,    // RAM access bit
 564   0,    // fast call/return mode select bit
 565   0,    // second memory operand
 566   0,    // second literal operand
 567   POC_NOP,
 568   (PCC_REL_ADDR | PCC_Z),   // inCond
 569   PCC_NONE   , // outCond
 570   PCI_MAGIC
 571 };
 572
 573 pCodeInstruction pic16_pciBOV = { // mdubuc - New
 574   {PC_OPCODE, NULL, NULL, 0, NULL,
 575    //   genericAnalyze,
 576    genericDestruct,
 577    genericPrint},
 578   POC_BOV,
 579   "BOV",
 580   NULL, // from branch
 581   NULL, // to branch
 582   NULL, // label
 583   NULL, // operand
 584   NULL, // flow block
 585   NULL, // C source
 586   1,    // num ops
 587   0,0,  // dest, bit instruction
 588   1,0,  // branch, skip
 589   0,    // literal operand
 590   0,    // RAM access bit
 591   0,    // fast call/return mode select bit
 592   0,    // second memory operand
 593   0,    // second literal operand
 594   POC_NOP,
 595   (PCC_REL_ADDR | PCC_OV),   // inCond
 596   PCC_NONE , // outCond
 597   PCI_MAGIC
 598 };
 599
 600 pCodeInstruction pic16_pciBRA = { // mdubuc - New
 601   {PC_OPCODE, NULL, NULL, 0, NULL,
 602    //   genericAnalyze,
 603    genericDestruct,
 604    genericPrint},
 605   POC_BRA,
 606   "BRA",
 607   NULL, // from branch
 608   NULL, // to branch
 609   NULL, // label
 610   NULL, // operand
 611   NULL, // flow block
 612   NULL, // C source
 613   1,    // num ops
 614   0,0,  // dest, bit instruction
 615   1,0,  // branch, skip
 616   0,    // literal operand
 617   0,    // RAM access bit
 618   0,    // fast call/return mode select bit
 619   0,    // second memory operand
 620   0,    // second literal operand
 621   POC_NOP,
 622   PCC_REL_ADDR,   // inCond
 623   PCC_NONE   , // outCond
 624   PCI_MAGIC
 625 };
 626
 627 pCodeInstruction pic16_pciBSF = {
 628   {PC_OPCODE, NULL, NULL, 0, NULL,
 629    //   genericAnalyze,
 630    genericDestruct,
 631    genericPrint},
 632   POC_BSF,
 633   "BSF",
 634   NULL, // from branch
 635   NULL, // to branch
 636   NULL, // label
 637   NULL, // operand
 638   NULL, // flow block
 639   NULL, // C source
 640   3,    // num ops
 641   1,1,  // dest, bit instruction
 642   0,0,  // branch, skip
 643   0,    // literal operand
 644   1,    // RAM access bit
 645   0,    // fast call/return mode select bit
 646   0,    // second memory operand
 647   0,    // second literal operand
 648   POC_BCF,
 649   (PCC_REGISTER | PCC_EXAMINE_PCOP),   // inCond
 650   (PCC_REGISTER | PCC_EXAMINE_PCOP), // outCond
 651   PCI_MAGIC
 652 };
 653
 654 pCodeInstruction pic16_pciBTFSC = {
 655   {PC_OPCODE, NULL, NULL, 0, NULL,
 656    //   AnalyzeSKIP,
 657    genericDestruct,
 658    genericPrint},
 659   POC_BTFSC,
 660   "BTFSC",
 661   NULL, // from branch
 662   NULL, // to branch
 663   NULL, // label
 664   NULL, // operand
 665   NULL, // flow block
 666   NULL, // C source
 667   3,    // num ops
 668   0,1,  // dest, bit instruction
 669   1,1,  // branch, skip
 670   0,    // literal operand
 671   1,    // RAM access bit
 672   0,    // fast call/return mode select bit
 673   0,    // second memory operand
 674   0,    // second literal operand
 675   POC_BTFSS,
 676   (PCC_REGISTER | PCC_EXAMINE_PCOP),   // inCond
 677   PCC_EXAMINE_PCOP, // outCond
 678   PCI_MAGIC
 679 };
 680
 681 pCodeInstruction pic16_pciBTFSS = {
 682   {PC_OPCODE, NULL, NULL, 0, NULL,
 683    //   AnalyzeSKIP,
 684    genericDestruct,
 685    genericPrint},
 686   POC_BTFSS,
 687   "BTFSS",
 688   NULL, // from branch
 689   NULL, // to branch
 690   NULL, // label
 691   NULL, // operand
 692   NULL, // flow block
 693   NULL, // C source
 694   3,    // num ops
 695   0,1,  // dest, bit instruction
 696   1,1,  // branch, skip
 697   0,    // literal operand
 698   1,    // RAM access bit
 699   0,    // fast call/return mode select bit
 700   0,    // second memory operand
 701   0,    // second literal operand
 702   POC_BTFSC,
 703   (PCC_REGISTER | PCC_EXAMINE_PCOP),   // inCond
 704   PCC_EXAMINE_PCOP, // outCond
 705   PCI_MAGIC
 706 };
 707
 708 pCodeInstruction pic16_pciBTG = { // mdubuc - New
 709   {PC_OPCODE, NULL, NULL, 0, NULL,
 710    //   genericAnalyze,
 711    genericDestruct,
 712    genericPrint},
 713   POC_BTG,
 714   "BTG",
 715   NULL, // from branch
 716   NULL, // to branch
 717   NULL, // label
 718   NULL, // operand
 719   NULL, // flow block
 720   NULL, // C source
 721   3,    // num ops
 722   0,1,  // dest, bit instruction
 723   0,0,  // branch, skip
 724   0,    // literal operand
 725   1,    // RAM access bit
 726   0,    // fast call/return mode select bit
 727   0,    // second memory operand
 728   0,    // second literal operand
 729   POC_NOP,
 730   (PCC_REGISTER | PCC_EXAMINE_PCOP),   // inCond
 731   (PCC_REGISTER | PCC_EXAMINE_PCOP), // outCond
 732   PCI_MAGIC
 733 };
 734
 735 pCodeInstruction pic16_pciBZ = { // mdubuc - New
 736   {PC_OPCODE, NULL, NULL, 0, NULL,
 737    //   genericAnalyze,
 738    genericDestruct,
 739    genericPrint},
 740   POC_BZ,
 741   "BZ",
 742   NULL, // from branch
 743   NULL, // to branch
 744   NULL, // label
 745   NULL, // operand
 746   NULL, // flow block
 747   NULL, // C source
 748   1,    // num ops
 749   0,0,  // dest, bit instruction
 750   1,0,  // branch, skip
 751   0,    // literal operand
 752   0,    // RAM access bit
 753   0,    // fast call/return mode select bit
 754   0,    // second memory operand
 755   0,    // second literal operand
 756   POC_NOP,
 757   PCC_Z,   // inCond
 758   PCC_NONE, // outCond
 759   PCI_MAGIC
 760 };
 761
 762 pCodeInstruction pic16_pciCALL = {
 763   {PC_OPCODE, NULL, NULL, 0, NULL,
 764    //   genericAnalyze,
 765    genericDestruct,
 766    genericPrint},
 767   POC_CALL,
 768   "CALL",
 769   NULL, // from branch
 770   NULL, // to branch
 771   NULL, // label
 772   NULL, // operand
 773   NULL, // flow block
 774   NULL, // C source
 775   2,    // num ops
 776   0,0,  // dest, bit instruction
 777   1,0,  // branch, skip
 778   0,    // literal operand
 779   0,    // RAM access bit
 780   1,    // fast call/return mode select bit
 781   0,    // second memory operand
 782   0,    // second literal operand
 783   POC_NOP,
 784   PCC_NONE, // inCond
 785   PCC_NONE , // outCond
 786   PCI_MAGIC
 787 };
 788
 789 pCodeInstruction pic16_pciCOMF = {
 790   {PC_OPCODE, NULL, NULL, 0, NULL,
 791    //   genericAnalyze,
 792    genericDestruct,
 793    genericPrint},
 794   POC_COMF,
 795   "COMF",
 796   NULL, // from branch
 797   NULL, // to branch
 798   NULL, // label
 799   NULL, // operand
 800   NULL, // flow block
 801   NULL, // C source
 802   3,    // num ops
 803   1,0,  // dest, bit instruction
 804   0,0,  // branch, skip
 805   0,    // literal operand
 806   1,    // RAM access bit
 807   0,    // fast call/return mode select bit
 808   0,    // second memory operand
 809   0,    // second literal operand
 810   POC_NOP,
 811   PCC_REGISTER,  // inCond
 812   PCC_REGISTER  , // outCond
 813   PCI_MAGIC
 814 };
 815
 816 pCodeInstruction pic16_pciCOMFW = {
 817   {PC_OPCODE, NULL, NULL, 0, NULL,
 818    //   genericAnalyze,
 819    genericDestruct,
 820    genericPrint},
 821   POC_COMFW,
 822   "COMF",
 823   NULL, // from branch
 824   NULL, // to branch
 825   NULL, // label
 826   NULL, // operand
 827   NULL, // flow block
 828   NULL, // C source
 829   3,    // num ops
 830   0,0,  // dest, bit instruction
 831   0,0,  // branch, skip
 832   0,    // literal operand
 833   1,    // RAM access bit
 834   0,    // fast call/return mode select bit
 835   0,    // second memory operand
 836   0,    // second literal operand
 837   POC_NOP,
 838   PCC_REGISTER,  // inCond
 839   PCC_W  , // outCond
 840   PCI_MAGIC
 841 };
 842
 843 pCodeInstruction pic16_pciCLRF = {
 844   {PC_OPCODE, NULL, NULL, 0, NULL,
 845    //   genericAnalyze,
 846    genericDestruct,
 847    genericPrint},
 848   POC_CLRF,
 849   "CLRF",
 850   NULL, // from branch
 851   NULL, // to branch
 852   NULL, // label
 853   NULL, // operand
 854   NULL, // flow block
 855   NULL, // C source
 856   2,    // num ops
 857   0,0,  // dest, bit instruction
 858   0,0,  // branch, skip
 859   0,    // literal operand
 860   1,    // RAM access bit
 861   0,    // fast call/return mode select bit
 862   0,    // second memory operand
 863   0,    // second literal operand
 864   POC_NOP,
 865   PCC_REGISTER, // inCond
 866   PCC_REGISTER , // outCond
 867   PCI_MAGIC
 868 };
 869
 870 pCodeInstruction pic16_pciCLRWDT = {
 871   {PC_OPCODE, NULL, NULL, 0, NULL,
 872    //   genericAnalyze,
 873    genericDestruct,
 874    genericPrint},
 875   POC_CLRWDT,
 876   "CLRWDT",
 877   NULL, // from branch
 878   NULL, // to branch
 879   NULL, // label
 880   NULL, // operand
 881   NULL, // flow block
 882   NULL, // C source
 883   0,    // num ops
 884   0,0,  // dest, bit instruction
 885   0,0,  // branch, skip
 886   0,    // literal operand
 887   0,    // RAM access bit
 888   0,    // fast call/return mode select bit
 889   0,    // second memory operand
 890   0,    // second literal operand
 891   POC_NOP,
 892   PCC_NONE, // inCond
 893   PCC_NONE , // outCond
 894   PCI_MAGIC
 895 };
 896
 897 pCodeInstruction pic16_pciCPFSEQ = { // mdubuc - New
 898   {PC_OPCODE, NULL, NULL, 0, NULL,
 899    //   genericAnalyze,
 900    genericDestruct,
 901    genericPrint},
 902   POC_CPFSEQ,
 903   "CPFSEQ",
 904   NULL, // from branch
 905   NULL, // to branch
 906   NULL, // label
 907   NULL, // operand
 908   NULL, // flow block
 909   NULL, // C source
 910   2,    // num ops
 911   0,0,  // dest, bit instruction
 912   1,1,  // branch, skip
 913   0,    // literal operand
 914   1,    // RAM access bit
 915   0,    // fast call/return mode select bit
 916   0,    // second memory operand
 917   0,    // second literal operand
 918   POC_NOP,
 919   (PCC_W | PCC_REGISTER), // inCond
 920   PCC_NONE , // outCond
 921   PCI_MAGIC
 922 };
 923
 924 pCodeInstruction pic16_pciCPFSGT = { // mdubuc - New
 925   {PC_OPCODE, NULL, NULL, 0, NULL,
 926    //   genericAnalyze,
 927    genericDestruct,
 928    genericPrint},
 929   POC_CPFSGT,
 930   "CPFSGT",
 931   NULL, // from branch
 932   NULL, // to branch
 933   NULL, // label
 934   NULL, // operand
 935   NULL, // flow block
 936   NULL, // C source
 937   2,    // num ops
 938   0,0,  // dest, bit instruction
 939   1,1,  // branch, skip
 940   0,    // literal operand
 941   1,    // RAM access bit
 942   0,    // fast call/return mode select bit
 943   0,    // second memory operand
 944   0,    // second literal operand
 945   POC_NOP,
 946   (PCC_W | PCC_REGISTER), // inCond
 947   PCC_NONE , // outCond
 948   PCI_MAGIC
 949 };
 950
 951 pCodeInstruction pic16_pciCPFSLT = { // mdubuc - New
 952   {PC_OPCODE, NULL, NULL, 0, NULL,
 953    //   genericAnalyze,
 954    genericDestruct,
 955    genericPrint},
 956   POC_CPFSLT,
 957   "CPFSLT",
 958   NULL, // from branch
 959   NULL, // to branch
 960   NULL, // label
 961   NULL, // operand
 962   NULL, // flow block
 963   NULL, // C source
 964   2,    // num ops
 965   1,0,  // dest, bit instruction
 966   1,1,  // branch, skip
 967   0,    // literal operand
 968   1,    // RAM access bit
 969   0,    // fast call/return mode select bit
 970   0,    // second memory operand
 971   0,    // second literal operand
 972   POC_NOP,
 973   (PCC_W | PCC_REGISTER), // inCond
 974   PCC_NONE , // outCond
 975   PCI_MAGIC
 976 };
 977
 978 pCodeInstruction pic16_pciDAW = {
 979   {PC_OPCODE, NULL, NULL, 0, NULL,
 980    //   genericAnalyze,
 981    genericDestruct,
 982    genericPrint},
 983   POC_DAW,
 984   "DAW",
 985   NULL, // from branch
 986   NULL, // to branch
 987   NULL, // label
 988   NULL, // operand
 989   NULL, // flow block
 990   NULL, // C source
 991   0,    // num ops
 992   0,0,  // dest, bit instruction
 993   0,0,  // branch, skip
 994   0,    // literal operand
 995   0,    // RAM access bit
 996   0,    // fast call/return mode select bit
 997   0,    // second memory operand
 998   0,    // second literal operand
 999   POC_NOP,
1000   PCC_W, // inCond
1001   (PCC_W | PCC_C), // outCond
1002   PCI_MAGIC
1003 };
1004
1005 pCodeInstruction pic16_pciDCFSNZ = { // mdubuc - New
1006   {PC_OPCODE, NULL, NULL, 0, NULL,
1007    //   genericAnalyze,
1008    genericDestruct,
1009    genericPrint},
1010   POC_DCFSNZ,
1011   "DCFSNZ",
1012   NULL, // from branch
1013   NULL, // to branch
1014   NULL, // label
1015   NULL, // operand
1016   NULL, // flow block
1017   NULL, // C source
1018   3,    // num ops
1019   1,0,  // dest, bit instruction
1020   1,1,  // branch, skip
1021   0,    // literal operand
1022   1,    // RAM access bit
1023   0,    // fast call/return mode select bit
1024   0,    // second memory operand
1025   0,    // second literal operand
1026   POC_NOP,
1027   PCC_REGISTER, // inCond
1028   PCC_REGISTER , // outCond
1029   PCI_MAGIC
1030 };
1031
1032 pCodeInstruction pic16_pciDCFSNZW = { // mdubuc - New
1033   {PC_OPCODE, NULL, NULL, 0, NULL,
1034    //   genericAnalyze,
1035    genericDestruct,
1036    genericPrint},
1037   POC_DCFSNZW,
1038   "DCFSNZ",
1039   NULL, // from branch
1040   NULL, // to branch
1041   NULL, // label
1042   NULL, // operand
1043   NULL, // flow block
1044   NULL, // C source
1045   3,    // num ops
1046   0,0,  // dest, bit instruction
1047   1,1,  // branch, skip
1048   0,    // literal operand
1049   1,    // RAM access bit
1050   0,    // fast call/return mode select bit
1051   0,    // second memory operand
1052   0,    // second literal operand
1053   POC_NOP,
1054   PCC_REGISTER, // inCond
1055   PCC_W , // outCond
1056   PCI_MAGIC
1057 };
1058
1059 pCodeInstruction pic16_pciDECF = {
1060   {PC_OPCODE, NULL, NULL, 0, NULL,
1061    //   genericAnalyze,
1062    genericDestruct,
1063    genericPrint},
1064   POC_DECF,
1065   "DECF",
1066   NULL, // from branch
1067   NULL, // to branch
1068   NULL, // label
1069   NULL, // operand
1070   NULL, // flow block
1071   NULL, // C source
1072   3,    // num ops
1073   1,0,  // dest, bit instruction
1074   0,0,  // branch, skip
1075   0,    // literal operand
1076   1,    // RAM access bit
1077   0,    // fast call/return mode select bit
1078   0,    // second memory operand
1079   0,    // second literal operand
1080   POC_NOP,
1081   PCC_REGISTER,   // inCond
1082   PCC_REGISTER   , // outCond
1083   PCI_MAGIC
1084 };
1085
1086 pCodeInstruction pic16_pciDECFW = {
1087   {PC_OPCODE, NULL, NULL, 0, NULL,
1088    //   genericAnalyze,
1089    genericDestruct,
1090    genericPrint},
1091   POC_DECFW,
1092   "DECF",
1093   NULL, // from branch
1094   NULL, // to branch
1095   NULL, // label
1096   NULL, // operand
1097   NULL, // flow block
1098   NULL, // C source
1099   3,    // num ops
1100   0,0,  // dest, bit instruction
1101   0,0,  // branch, skip
1102   0,    // literal operand
1103   1,    // RAM access bit
1104   0,    // fast call/return mode select bit
1105   0,    // second memory operand
1106   0,    // second literal operand
1107   POC_NOP,
1108   PCC_REGISTER,   // inCond
1109   PCC_W   , // outCond
1110   PCI_MAGIC
1111 };
1112
1113 pCodeInstruction pic16_pciDECFSZ = {
1114   {PC_OPCODE, NULL, NULL, 0, NULL,
1115    //   AnalyzeSKIP,
1116    genericDestruct,
1117    genericPrint},
1118   POC_DECFSZ,
1119   "DECFSZ",
1120   NULL, // from branch
1121   NULL, // to branch
1122   NULL, // label
1123   NULL, // operand
1124   NULL, // flow block
1125   NULL, // C source
1126   3,    // num ops
1127   1,0,  // dest, bit instruction
1128   1,1,  // branch, skip
1129   0,    // literal operand
1130   1,    // RAM access bit
1131   0,    // fast call/return mode select bit
1132   0,    // second memory operand
1133   0,    // second literal operand
1134   POC_NOP,
1135   PCC_REGISTER,   // inCond
1136   PCC_REGISTER   , // outCond
1137   PCI_MAGIC
1138 };
1139
1140 pCodeInstruction pic16_pciDECFSZW = {
1141   {PC_OPCODE, NULL, NULL, 0, NULL,
1142    //   AnalyzeSKIP,
1143    genericDestruct,
1144    genericPrint},
1145   POC_DECFSZW,
1146   "DECFSZ",
1147   NULL, // from branch
1148   NULL, // to branch
1149   NULL, // label
1150   NULL, // operand
1151   NULL, // flow block
1152   NULL, // C source
1153   3,    // num ops
1154   0,0,  // dest, bit instruction
1155   1,1,  // branch, skip
1156   0,    // literal operand
1157   1,    // RAM access bit
1158   0,    // fast call/return mode select bit
1159   0,    // second memory operand
1160   0,    // second literal operand
1161   POC_NOP,
1162   PCC_REGISTER,   // inCond
1163   PCC_W          , // outCond
1164   PCI_MAGIC
1165 };
1166
1167 pCodeInstruction pic16_pciGOTO = {
1168   {PC_OPCODE, NULL, NULL, 0, NULL,
1169    //   AnalyzeGOTO,
1170    genericDestruct,
1171    genericPrint},
1172   POC_GOTO,
1173   "GOTO",
1174   NULL, // from branch
1175   NULL, // to branch
1176   NULL, // label
1177   NULL, // operand
1178   NULL, // flow block
1179   NULL, // C source
1180   1,    // num ops
1181   0,0,  // dest, bit instruction
1182   1,0,  // branch, skip
1183   0,    // literal operand
1184   0,    // RAM access bit
1185   0,    // fast call/return mode select bit
1186   0,    // second memory operand
1187   0,    // second literal operand
1188   POC_NOP,
1189   PCC_REL_ADDR,   // inCond
1190   PCC_NONE   , // outCond
1191   PCI_MAGIC
1192 };
1193
1194 pCodeInstruction pic16_pciINCF = {
1195   {PC_OPCODE, NULL, NULL, 0, NULL,
1196    //   genericAnalyze,
1197    genericDestruct,
1198    genericPrint},
1199   POC_INCF,
1200   "INCF",
1201   NULL, // from branch
1202   NULL, // to branch
1203   NULL, // label
1204   NULL, // operand
1205   NULL, // flow block
1206   NULL, // C source
1207   3,    // num ops
1208   1,0,  // dest, bit instruction
1209   0,0,  // branch, skip
1210   0,    // literal operand
1211   1,    // RAM access bit
1212   0,    // fast call/return mode select bit
1213   0,    // second memory operand
1214   0,    // second literal operand
1215   POC_NOP,
1216   PCC_REGISTER,   // inCond
1217   (PCC_REGISTER | PCC_C | PCC_DC | PCC_Z | PCC_OV | PCC_N), // outCond
1218   PCI_MAGIC
1219 };
1220
1221 pCodeInstruction pic16_pciINCFW = {
1222   {PC_OPCODE, NULL, NULL, 0, NULL,
1223    //   genericAnalyze,
1224    genericDestruct,
1225    genericPrint},
1226   POC_INCFW,
1227   "INCF",
1228   NULL, // from branch
1229   NULL, // to branch
1230   NULL, // label
1231   NULL, // operand
1232   NULL, // flow block
1233   NULL, // C source
1234   3,    // num ops
1235   0,0,  // dest, bit instruction
1236   0,0,  // branch, skip
1237   0,    // literal operand
1238   1,    // RAM access bit
1239   0,    // fast call/return mode select bit
1240   0,    // second memory operand
1241   0,    // second literal operand
1242   POC_NOP,
1243   PCC_REGISTER,   // inCond
1244   PCC_W   , // outCond
1245   PCI_MAGIC
1246 };
1247
1248 pCodeInstruction pic16_pciINCFSZ = {
1249   {PC_OPCODE, NULL, NULL, 0, NULL,
1250    //   AnalyzeSKIP,
1251    genericDestruct,
1252    genericPrint},
1253   POC_INCFSZ,
1254   "INCFSZ",
1255   NULL, // from branch
1256   NULL, // to branch
1257   NULL, // label
1258   NULL, // operand
1259   NULL, // flow block
1260   NULL, // C source
1261   3,    // num ops
1262   1,0,  // dest, bit instruction
1263   1,1,  // branch, skip
1264   0,    // literal operand
1265   1,    // RAM access bit
1266   0,    // fast call/return mode select bit
1267   0,    // second memory operand
1268   0,    // second literal operand
1269   POC_NOP,
1270   PCC_REGISTER,   // inCond
1271   PCC_REGISTER   , // outCond
1272   PCI_MAGIC
1273 };
1274
1275 pCodeInstruction pic16_pciINCFSZW = {
1276   {PC_OPCODE, NULL, NULL, 0, NULL,
1277    //   AnalyzeSKIP,
1278    genericDestruct,
1279    genericPrint},
1280   POC_INCFSZW,
1281   "INCFSZ",
1282   NULL, // from branch
1283   NULL, // to branch
1284   NULL, // label
1285   NULL, // operand
1286   NULL, // flow block
1287   NULL, // C source
1288   3,    // num ops
1289   0,0,  // dest, bit instruction
1290   1,1,  // branch, skip
1291   0,    // literal operand
1292   1,    // RAM access bit
1293   0,    // fast call/return mode select bit
1294   0,    // second memory operand
1295   0,    // second literal operand
1296   POC_NOP,
1297   PCC_REGISTER,   // inCond
1298   PCC_W          , // outCond
1299   PCI_MAGIC
1300 };
1301
1302 pCodeInstruction pic16_pciINFSNZ = { // mdubuc - New
1303   {PC_OPCODE, NULL, NULL, 0, NULL,
1304    //   AnalyzeSKIP,
1305    genericDestruct,
1306    genericPrint},
1307   POC_INFSNZ,
1308   "INCFSNZ",
1309   NULL, // from branch
1310   NULL, // to branch
1311   NULL, // label
1312   NULL, // operand
1313   NULL, // flow block
1314   NULL, // C source
1315   3,    // num ops
1316   1,0,  // dest, bit instruction
1317   1,1,  // branch, skip
1318   0,    // literal operand
1319   1,    // RAM access bit
1320   0,    // fast call/return mode select bit
1321   0,    // second memory operand
1322   0,    // second literal operand
1323   POC_NOP,
1324   PCC_REGISTER,   // inCond
1325   PCC_REGISTER   , // outCond
1326   PCI_MAGIC
1327 };
1328
1329 pCodeInstruction pic16_pciIORWF = {
1330   {PC_OPCODE, NULL, NULL, 0, NULL,
1331    //   genericAnalyze,
1332    genericDestruct,
1333    genericPrint},
1334   POC_IORWF,
1335   "IORWF",
1336   NULL, // from branch
1337   NULL, // to branch
1338   NULL, // label
1339   NULL, // operand
1340   NULL, // flow block
1341   NULL, // C source
1342   3,    // num ops
1343   1,0,  // dest, bit instruction
1344   0,0,  // branch, skip
1345   0,    // literal operand
1346   1,    // RAM access bit
1347   0,    // fast call/return mode select bit
1348   0,    // second memory operand
1349   0,    // second literal operand
1350   POC_NOP,
1351   (PCC_W | PCC_REGISTER),   // inCond
1352   (PCC_REGISTER | PCC_Z | PCC_N), // outCond
1353   PCI_MAGIC
1354 };
1355
1356 pCodeInstruction pic16_pciIORFW = {
1357   {PC_OPCODE, NULL, NULL, 0, NULL,
1358    //   genericAnalyze,
1359    genericDestruct,
1360    genericPrint},
1361   POC_IORFW,
1362   "IORWF",
1363   NULL, // from branch
1364   NULL, // to branch
1365   NULL, // label
1366   NULL, // operand
1367   NULL, // flow block
1368   NULL, // C source
1369   3,    // num ops
1370   0,0,  // dest, bit instruction
1371   0,0,  // branch, skip
1372   0,    // literal operand
1373   1,    // RAM access bit
1374   0,    // fast call/return mode select bit
1375   0,    // second memory operand
1376   0,    // second literal operand
1377   POC_NOP,
1378   (PCC_W | PCC_REGISTER),   // inCond
1379   (PCC_W | PCC_Z | PCC_N), // outCond
1380   PCI_MAGIC
1381 };
1382
1383 pCodeInstruction pic16_pciIORLW = {
1384   {PC_OPCODE, NULL, NULL, 0, NULL,
1385    //   genericAnalyze,
1386    genericDestruct,
1387    genericPrint},
1388   POC_IORLW,
1389   "IORLW",
1390   NULL, // from branch
1391   NULL, // to branch
1392   NULL, // label
1393   NULL, // operand
1394   NULL, // flow block
1395   NULL, // C source
1396   1,    // num ops
1397   0,0,  // dest, bit instruction
1398   0,0,  // branch, skip
1399   1,    // literal operand
1400   0,    // RAM access bit
1401   0,    // fast call/return mode select bit
1402   0,    // second memory operand
1403   0,    // second literal operand
1404   POC_NOP,
1405   (PCC_W | PCC_LITERAL),   // inCond
1406   (PCC_W | PCC_Z | PCC_N), // outCond
1407   PCI_MAGIC
1408 };
1409
1410 pCodeInstruction pic16_pciLFSR = { // mdubuc - New
1411   {PC_OPCODE, NULL, NULL, 0, NULL,
1412    //   genericAnalyze,
1413    genericDestruct,
1414    genericPrint},
1415   POC_LFSR,
1416   "LFSR",
1417   NULL, // from branch
1418   NULL, // to branch
1419   NULL, // label
1420   NULL, // operand
1421   NULL, // flow block
1422   NULL, // C source
1423   2,    // num ops
1424   0,0,  // dest, bit instruction
1425   0,0,  // branch, skip
1426   1,    // literal operand
1427   0,    // RAM access bit
1428   0,    // fast call/return mode select bit
1429   0,    // second memory operand
1430   1,    // second literal operand
1431   POC_NOP,
1432   (PCC_REGISTER | PCC_LITERAL),
1433   PCC_REGISTER, // outCond
1434   PCI_MAGIC
1435 };
1436
1437 pCodeInstruction pic16_pciMOVF = {
1438   {PC_OPCODE, NULL, NULL, 0, NULL,
1439    //   genericAnalyze,
1440    genericDestruct,
1441    genericPrint},
1442   POC_MOVF,
1443   "MOVF",
1444   NULL, // from branch
1445   NULL, // to branch
1446   NULL, // label
1447   NULL, // operand
1448   NULL, // flow block
1449   NULL, // C source
1450   3,    // num ops
1451   1,0,  // dest, bit instruction
1452   0,0,  // branch, skip
1453   0,    // literal operand
1454   1,    // RAM access bit
1455   0,    // fast call/return mode select bit
1456   0,    // second memory operand
1457   0,    // second literal operand
1458   POC_NOP,
1459   PCC_REGISTER,   // inCond
1460   (PCC_Z | PCC_N), // outCond
1461   PCI_MAGIC
1462 };
1463
1464 pCodeInstruction pic16_pciMOVFW = {
1465   {PC_OPCODE, NULL, NULL, 0, NULL,
1466    //   genericAnalyze,
1467    genericDestruct,
1468    genericPrint},
1469   POC_MOVFW,
1470   "MOVF",
1471   NULL, // from branch
1472   NULL, // to branch
1473   NULL, // label
1474   NULL, // operand
1475   NULL, // flow block
1476   NULL, // C source
1477   3,    // num ops
1478   0,0,  // dest, bit instruction
1479   0,0,  // branch, skip
1480   0,    // literal operand
1481   1,    // RAM access bit
1482   0,    // fast call/return mode select bit
1483   0,    // second memory operand
1484   0,    // second literal operand
1485   POC_NOP,
1486   PCC_REGISTER,   // inCond
1487   (PCC_W | PCC_Z), // outCond
1488   PCI_MAGIC
1489 };
1490
1491 pCodeInstruction pic16_pciMOVFF = { // mdubuc - New
1492   {PC_OPCODE, NULL, NULL, 0, NULL,
1493    //   genericAnalyze,
1494    genericDestruct,
1495    genericPrint},
1496   POC_MOVFF,
1497   "MOVFF",
1498   NULL, // from branch
1499   NULL, // to branch
1500   NULL, // label
1501   NULL, // operand
1502   NULL, // flow block
1503   NULL, // C source
1504   2,    // num ops
1505   0,0,  // dest, bit instruction
1506   0,0,  // branch, skip
1507   0,    // literal operand
1508   0,    // RAM access bit
1509   0,    // fast call/return mode select bit
1510   1,    // second memory operand
1511   0,    // second literal operand
1512   POC_NOP,
1513   PCC_REGISTER,   // inCond
1514   PCC_REGISTER2, // outCond
1515   PCI_MAGIC
1516 };
1517
1518 pCodeInstruction pic16_pciMOVLB = { // mdubuc - New
1519   {PC_OPCODE, NULL, NULL, 0, NULL,
1520    genericDestruct,
1521    genericPrint},
1522   POC_MOVLB,
1523   "MOVLB",
1524   NULL, // from branch
1525   NULL, // to branch
1526   NULL, // label
1527   NULL, // operand
1528   NULL, // flow block
1529   NULL, // C source
1530   1,    // num ops
1531   0,0,  // dest, bit instruction
1532   0,0,  // branch, skip
1533   1,    // literal operand
1534   0,    // RAM access bit
1535   0,    // fast call/return mode select bit
1536   0,    // second memory operand
1537   0,    // second literal operand
1538   POC_NOP,
1539   (PCC_NONE | PCC_LITERAL),   // inCond
1540   PCC_REGISTER, // outCond - BSR
1541   PCI_MAGIC
1542 };
1543
1544 pCodeInstruction pic16_pciMOVLW = {
1545   {PC_OPCODE, NULL, NULL, 0, NULL,
1546    genericDestruct,
1547    genericPrint},
1548   POC_MOVLW,
1549   "MOVLW",
1550   NULL, // from branch
1551   NULL, // to branch
1552   NULL, // label
1553   NULL, // operand
1554   NULL, // flow block
1555   NULL, // C source
1556   1,    // num ops
1557   0,0,  // dest, bit instruction
1558   0,0,  // branch, skip
1559   1,    // literal operand
1560   0,    // RAM access bit
1561   0,    // fast call/return mode select bit
1562   0,    // second memory operand
1563   0,    // second literal operand
1564   POC_NOP,
1565   (PCC_NONE | PCC_LITERAL),   // inCond
1566   PCC_W, // outCond
1567   PCI_MAGIC
1568 };
1569
1570 pCodeInstruction pic16_pciMOVWF = {
1571   {PC_OPCODE, NULL, NULL, 0, NULL,
1572    //   genericAnalyze,
1573    genericDestruct,
1574    genericPrint},
1575   POC_MOVWF,
1576   "MOVWF",
1577   NULL, // from branch
1578   NULL, // to branch
1579   NULL, // label
1580   NULL, // operand
1581   NULL, // flow block
1582   NULL, // C source
1583   2,    // num ops
1584   0,0,  // dest, bit instruction
1585   0,0,  // branch, skip
1586   0,    // literal operand
1587   1,    // RAM access bit
1588   0,    // fast call/return mode select bit
1589   0,    // second memory operand
1590   0,    // second literal operand
1591   POC_NOP,
1592   PCC_REGISTER,   // inCond
1593   PCC_W, // outCond
1594   PCI_MAGIC
1595 };
1596
1597 pCodeInstruction pic16_pciMULLW = { // mdubuc - New
1598   {PC_OPCODE, NULL, NULL, 0, NULL,
1599    genericDestruct,
1600    genericPrint},
1601   POC_MULLW,
1602   "MULLW",
1603   NULL, // from branch
1604   NULL, // to branch
1605   NULL, // label
1606   NULL, // operand
1607   NULL, // flow block
1608   NULL, // C source
1609   1,    // num ops
1610   0,0,  // dest, bit instruction
1611   0,0,  // branch, skip
1612   1,    // literal operand
1613   0,    // RAM access bit
1614   0,    // fast call/return mode select bit
1615   0,    // second memory operand
1616   0,    // second literal operand
1617   POC_NOP,
1618   (PCC_W | PCC_LITERAL),   // inCond
1619   PCC_REGISTER, // outCond - PROD
1620   PCI_MAGIC
1621 };
1622
1623 pCodeInstruction pic16_pciMULWF = { // mdubuc - New
1624   {PC_OPCODE, NULL, NULL, 0, NULL,
1625    genericDestruct,
1626    genericPrint},
1627   POC_MULWF,
1628   "MULWF",
1629   NULL, // from branch
1630   NULL, // to branch
1631   NULL, // label
1632   NULL, // operand
1633   NULL, // flow block
1634   NULL, // C source
1635   2,    // num ops
1636   0,0,  // dest, bit instruction
1637   0,0,  // branch, skip
1638   0,    // literal operand
1639   1,    // RAM access bit
1640   0,    // fast call/return mode select bit
1641   0,    // second memory operand
1642   0,    // second literal operand
1643   POC_NOP,
1644   (PCC_W | PCC_REGISTER),   // inCond
1645   PCC_REGISTER, // outCond - PROD
1646   PCI_MAGIC
1647 };
1648
1649 pCodeInstruction pic16_pciNEGF = { // mdubuc - New
1650   {PC_OPCODE, NULL, NULL, 0, NULL,
1651    genericDestruct,
1652    genericPrint},
1653   POC_NEGF,
1654   "NEGF",
1655   NULL, // from branch
1656   NULL, // to branch
1657   NULL, // label
1658   NULL, // operand
1659   NULL, // flow block
1660   NULL, // C source
1661   2,    // num ops
1662   0,0,  // dest, bit instruction
1663   0,0,  // branch, skip
1664   0,    // literal operand
1665   1,    // RAM access bit
1666   0,    // fast call/return mode select bit
1667   0,    // second memory operand
1668   0,    // second literal operand
1669   POC_NOP,
1670   PCC_REGISTER, // inCond
1671   (PCC_REGISTER | PCC_C | PCC_DC | PCC_OV | PCC_N), // outCond
1672   PCI_MAGIC
1673 };
1674
1675 pCodeInstruction pic16_pciNOP = {
1676   {PC_OPCODE, NULL, NULL, 0, NULL,
1677    genericDestruct,
1678    genericPrint},
1679   POC_NOP,
1680   "NOP",
1681   NULL, // from branch
1682   NULL, // to branch
1683   NULL, // label
1684   NULL, // operand
1685   NULL, // flow block
1686   NULL, // C source
1687   0,    // num ops
1688   0,0,  // dest, bit instruction
1689   0,0,  // branch, skip
1690   0,    // literal operand
1691   0,    // RAM access bit
1692   0,    // fast call/return mode select bit
1693   0,    // second memory operand
1694   0,    // second literal operand
1695   POC_NOP,
1696   PCC_NONE,   // inCond
1697   PCC_NONE, // outCond
1698   PCI_MAGIC
1699 };
1700
1701 pCodeInstruction pic16_pciPOP = { // mdubuc - New
1702   {PC_OPCODE, NULL, NULL, 0, NULL,
1703    genericDestruct,
1704    genericPrint},
1705   POC_POP,
1706   "POP",
1707   NULL, // from branch
1708   NULL, // to branch
1709   NULL, // label
1710   NULL, // operand
1711   NULL, // flow block
1712   NULL, // C source
1713   0,    // num ops
1714   0,0,  // dest, bit instruction
1715   0,0,  // branch, skip
1716   0,    // literal operand
1717   0,    // RAM access bit
1718   0,    // fast call/return mode select bit
1719   0,    // second memory operand
1720   0,    // second literal operand
1721   POC_NOP,
1722   PCC_NONE,  // inCond
1723   PCC_NONE  , // outCond
1724   PCI_MAGIC
1725 };
1726
1727 pCodeInstruction pic16_pciPUSH = {
1728   {PC_OPCODE, NULL, NULL, 0, NULL,
1729    genericDestruct,
1730    genericPrint},
1731   POC_PUSH,
1732   "PUSH",
1733   NULL, // from branch
1734   NULL, // to branch
1735   NULL, // label
1736   NULL, // operand
1737   NULL, // flow block
1738   NULL, // C source
1739   0,    // num ops
1740   0,0,  // dest, bit instruction
1741   0,0,  // branch, skip
1742   0,    // literal operand
1743   0,    // RAM access bit
1744   0,    // fast call/return mode select bit
1745   0,    // second memory operand
1746   0,    // second literal operand
1747   POC_NOP,
1748   PCC_NONE,  // inCond
1749   PCC_NONE  , // outCond
1750   PCI_MAGIC
1751 };
1752
1753 pCodeInstruction pic16_pciRCALL = { // mdubuc - New
1754   {PC_OPCODE, NULL, NULL, 0, NULL,
1755    genericDestruct,
1756    genericPrint},
1757   POC_RCALL,
1758   "RCALL",
1759   NULL, // from branch
1760   NULL, // to branch
1761   NULL, // label
1762   NULL, // operand
1763   NULL, // flow block
1764   NULL, // C source
1765   1,    // num ops
1766   0,0,  // dest, bit instruction
1767   0,0,  // branch, skip
1768   0,    // literal operand
1769   0,    // RAM access bit
1770   0,    // fast call/return mode select bit
1771   0,    // second memory operand
1772   0,    // second literal operand
1773   POC_NOP,
1774   PCC_REL_ADDR,  // inCond
1775   PCC_NONE  , // outCond
1776   PCI_MAGIC
1777 };
1778
1779 pCodeInstruction pic16_pciRETFIE = {
1780   {PC_OPCODE, NULL, NULL, 0, NULL,
1781    //   AnalyzeRETURN,
1782    genericDestruct,
1783    genericPrint},
1784   POC_RETFIE,
1785   "RETFIE",
1786   NULL, // from branch
1787   NULL, // to branch
1788   NULL, // label
1789   NULL, // operand
1790   NULL, // flow block
1791   NULL, // C source
1792   1,    // num ops
1793   0,0,  // dest, bit instruction
1794   1,0,  // branch, skip
1795   0,    // literal operand
1796   0,    // RAM access bit
1797   1,    // fast call/return mode select bit
1798   0,    // second memory operand
1799   0,    // second literal operand
1800   POC_NOP,
1801   PCC_NONE,   // inCond
1802   PCC_NONE,    // outCond (not true... affects the GIE bit too)
1803   PCI_MAGIC
1804 };
1805
1806 pCodeInstruction pic16_pciRETLW = {
1807   {PC_OPCODE, NULL, NULL, 0, NULL,
1808    //   AnalyzeRETURN,
1809    genericDestruct,
1810    genericPrint},
1811   POC_RETLW,
1812   "RETLW",
1813   NULL, // from branch
1814   NULL, // to branch
1815   NULL, // label
1816   NULL, // operand
1817   NULL, // flow block
1818   NULL, // C source
1819   1,    // num ops
1820   0,0,  // dest, bit instruction
1821   1,0,  // branch, skip
1822   1,    // literal operand
1823   0,    // RAM access bit
1824   0,    // fast call/return mode select bit
1825   0,    // second memory operand
1826   0,    // second literal operand
1827   POC_NOP,
1828   PCC_LITERAL,   // inCond
1829   PCC_W, // outCond
1830   PCI_MAGIC
1831 };
1832
1833 pCodeInstruction pic16_pciRETURN = {
1834   {PC_OPCODE, NULL, NULL, 0, NULL,
1835    //   AnalyzeRETURN,
1836    genericDestruct,
1837    genericPrint},
1838   POC_RETURN,
1839   "RETURN",
1840   NULL, // from branch
1841   NULL, // to branch
1842   NULL, // label
1843   NULL, // operand
1844   NULL, // flow block
1845   NULL, // C source
1846   1,    // num ops
1847   0,0,  // dest, bit instruction
1848   1,0,  // branch, skip
1849   0,    // literal operand
1850   0,    // RAM access bit
1851   1,    // fast call/return mode select bit
1852   0,    // second memory operand
1853   0,    // second literal operand
1854   POC_NOP,
1855   PCC_NONE,   // inCond
1856   PCC_NONE, // outCond
1857   PCI_MAGIC
1858 };
1859 pCodeInstruction pic16_pciRLCF = { // mdubuc - New
1860   {PC_OPCODE, NULL, NULL, 0, NULL,
1861    //   genericAnalyze,
1862    genericDestruct,
1863    genericPrint},
1864   POC_RLCF,
1865   "RLCF",
1866   NULL, // from branch
1867   NULL, // to branch
1868   NULL, // label
1869   NULL, // operand
1870   NULL, // flow block
1871   NULL, // C source
1872   3,    // num ops
1873   1,0,  // dest, bit instruction
1874   0,0,  // branch, skip
1875   0,    // literal operand
1876   1,    // RAM access bit
1877   0,    // fast call/return mode select bit
1878   0,    // second memory operand
1879   0,    // second literal operand
1880   POC_NOP,
1881   (PCC_C | PCC_REGISTER),   // inCond
1882   (PCC_REGISTER | PCC_C | PCC_Z | PCC_N), // outCond
1883   PCI_MAGIC
1884 };
1885
1886 pCodeInstruction pic16_pciRLCFW = { // mdubuc - New
1887   {PC_OPCODE, NULL, NULL, 0, NULL,
1888    //   genericAnalyze,
1889    genericDestruct,
1890    genericPrint},
1891   POC_RLCFW,
1892   "RLCF",
1893   NULL, // from branch
1894   NULL, // to branch
1895   NULL, // label
1896   NULL, // operand
1897   NULL, // flow block
1898   NULL, // C source
1899   3,    // num ops
1900   0,0,  // dest, bit instruction
1901   0,0,  // branch, skip
1902   0,    // literal operand
1903   1,    // RAM access bit
1904   0,    // fast call/return mode select bit
1905   0,    // second memory operand
1906   0,    // second literal operand
1907   POC_NOP,
1908   (PCC_C | PCC_REGISTER),   // inCond
1909   (PCC_W | PCC_C | PCC_Z | PCC_N), // outCond
1910   PCI_MAGIC
1911 };
1912
1913 pCodeInstruction pic16_pciRLNCF = { // mdubuc - New
1914   {PC_OPCODE, NULL, NULL, 0, NULL,
1915    //   genericAnalyze,
1916    genericDestruct,
1917    genericPrint},
1918   POC_RLNCF,
1919   "RLNCF",
1920   NULL, // from branch
1921   NULL, // to branch
1922   NULL, // label
1923   NULL, // operand
1924   NULL, // flow block
1925   NULL, // C source
1926   3,    // num ops
1927   1,0,  // dest, bit instruction
1928   0,0,  // branch, skip
1929   0,    // literal operand
1930   1,    // RAM access bit
1931   0,    // fast call/return mode select bit
1932   0,    // second memory operand
1933   0,    // second literal operand
1934   POC_NOP,
1935   PCC_REGISTER,   // inCond
1936   (PCC_REGISTER | PCC_Z | PCC_N), // outCond
1937   PCI_MAGIC
1938 };
1939 pCodeInstruction pic16_pciRLNCFW = { // mdubuc - New
1940   {PC_OPCODE, NULL, NULL, 0, NULL,
1941    //   genericAnalyze,
1942    genericDestruct,
1943    genericPrint},
1944   POC_RLNCFW,
1945   "RLNCF",
1946   NULL, // from branch
1947   NULL, // to branch
1948   NULL, // label
1949   NULL, // operand
1950   NULL, // flow block
1951   NULL, // C source
1952   3,    // num ops
1953   0,0,  // dest, bit instruction
1954   0,0,  // branch, skip
1955   0,    // literal operand
1956   1,    // RAM access bit
1957   0,    // fast call/return mode select bit
1958   0,    // second memory operand
1959   0,    // second literal operand
1960   POC_NOP,
1961   PCC_REGISTER,   // inCond
1962   (PCC_W | PCC_Z | PCC_N), // outCond
1963   PCI_MAGIC
1964 };
1965 pCodeInstruction pic16_pciRRCF = { // mdubuc - New
1966   {PC_OPCODE, NULL, NULL, 0, NULL,
1967    //   genericAnalyze,
1968    genericDestruct,
1969    genericPrint},
1970   POC_RRCF,
1971   "RRCF",
1972   NULL, // from branch
1973   NULL, // to branch
1974   NULL, // label
1975   NULL, // operand
1976   NULL, // flow block
1977   NULL, // C source
1978   3,    // num ops
1979   1,0,  // dest, bit instruction
1980   0,0,  // branch, skip
1981   0,    // literal operand
1982   1,    // RAM access bit
1983   0,    // fast call/return mode select bit
1984   0,    // second memory operand
1985   0,    // second literal operand
1986   POC_NOP,
1987   (PCC_C | PCC_REGISTER),   // inCond
1988   (PCC_REGISTER | PCC_C | PCC_Z | PCC_N), // outCond
1989   PCI_MAGIC
1990 };
1991 pCodeInstruction pic16_pciRRCFW = { // mdubuc - New
1992   {PC_OPCODE, NULL, NULL, 0, NULL,
1993    //   genericAnalyze,
1994    genericDestruct,
1995    genericPrint},
1996   POC_RRCFW,
1997   "RRCF",
1998   NULL, // from branch
1999   NULL, // to branch
2000   NULL, // label
2001   NULL, // operand
2002   NULL, // flow block
2003   NULL, // C source
2004   3,    // num ops
2005   0,0,  // dest, bit instruction
2006   0,0,  // branch, skip
2007   0,    // literal operand
2008   1,    // RAM access bit
2009   0,    // fast call/return mode select bit
2010   0,    // second memory operand
2011   0,    // second literal operand
2012   POC_NOP,
2013   (PCC_C | PCC_REGISTER),   // inCond
2014   (PCC_W | PCC_C | PCC_Z | PCC_N), // outCond
2015   PCI_MAGIC
2016 };
2017 pCodeInstruction pic16_pciRRNCF = { // mdubuc - New
2018   {PC_OPCODE, NULL, NULL, 0, NULL,
2019    //   genericAnalyze,
2020    genericDestruct,
2021    genericPrint},
2022   POC_RRNCF,
2023   "RRNCF",
2024   NULL, // from branch
2025   NULL, // to branch
2026   NULL, // label
2027   NULL, // operand
2028   NULL, // flow block
2029   NULL, // C source
2030   3,    // num ops
2031   1,0,  // dest, bit instruction
2032   0,0,  // branch, skip
2033   0,    // literal operand
2034   1,    // RAM access bit
2035   0,    // fast call/return mode select bit
2036   0,    // second memory operand
2037   0,    // second literal operand
2038   POC_NOP,
2039   PCC_REGISTER,   // inCond
2040   (PCC_REGISTER | PCC_Z | PCC_N), // outCond
2041   PCI_MAGIC
2042 };
2043
2044 pCodeInstruction pic16_pciRRNCFW = { // mdubuc - New
2045   {PC_OPCODE, NULL, NULL, 0, NULL,
2046    //   genericAnalyze,
2047    genericDestruct,
2048    genericPrint},
2049   POC_RRNCFW,
2050   "RRNCF",
2051   NULL, // from branch
2052   NULL, // to branch
2053   NULL, // label
2054   NULL, // operand
2055   NULL, // flow block
2056   NULL, // C source
2057   3,    // num ops
2058   0,0,  // dest, bit instruction
2059   0,0,  // branch, skip
2060   0,    // literal operand
2061   1,    // RAM access bit
2062   0,    // fast call/return mode select bit
2063   0,    // second memory operand
2064   0,    // second literal operand
2065   POC_NOP,
2066   PCC_REGISTER,   // inCond
2067   (PCC_W | PCC_Z | PCC_N), // outCond
2068   PCI_MAGIC
2069 };
2070
2071 pCodeInstruction pic16_pciSETF = { // mdubuc - New
2072   {PC_OPCODE, NULL, NULL, 0, NULL,
2073    //   genericAnalyze,
2074    genericDestruct,
2075    genericPrint},
2076   POC_SETF,
2077   "SETF",
2078   NULL, // from branch
2079   NULL, // to branch
2080   NULL, // label
2081   NULL, // operand
2082   NULL, // flow block
2083   NULL, // C source
2084   2,    // num ops
2085   0,0,  // dest, bit instruction
2086   0,0,  // branch, skip
2087   0,    // literal operand
2088   1,    // RAM access bit
2089   0,    // fast call/return mode select bit
2090   0,    // second memory operand
2091   0,    // second literal operand
2092   POC_NOP,
2093   PCC_REGISTER,  // inCond
2094   PCC_REGISTER  , // outCond
2095   PCI_MAGIC
2096 };
2097
2098 pCodeInstruction pic16_pciSUBLW = {
2099   {PC_OPCODE, NULL, NULL, 0, NULL,
2100    //   genericAnalyze,
2101    genericDestruct,
2102    genericPrint},
2103   POC_SUBLW,
2104   "SUBLW",
2105   NULL, // from branch
2106   NULL, // to branch
2107   NULL, // label
2108   NULL, // operand
2109   NULL, // flow block
2110   NULL, // C source
2111   1,    // num ops
2112   0,0,  // dest, bit instruction
2113   0,0,  // branch, skip
2114   1,    // literal operand
2115   0,    // RAM access bit
2116   0,    // fast call/return mode select bit
2117   0,    // second memory operand
2118   0,    // second literal operand
2119   POC_NOP,
2120   (PCC_W | PCC_LITERAL),   // inCond
2121   (PCC_W | PCC_C | PCC_DC | PCC_Z | PCC_OV | PCC_N), // outCond
2122   PCI_MAGIC
2123 };
2124
2125 pCodeInstruction pic16_pciSUBFWB = {
2126   {PC_OPCODE, NULL, NULL, 0, NULL,
2127    //   genericAnalyze,
2128    genericDestruct,
2129    genericPrint},
2130   POC_SUBFWB,
2131   "SUBFWB",
2132   NULL, // from branch
2133   NULL, // to branch
2134   NULL, // label
2135   NULL, // operand
2136   NULL, // flow block
2137   NULL, // C source
2138   3,    // num ops
2139   1,0,  // dest, bit instruction
2140   0,0,  // branch, skip
2141   0,    // literal operand
2142   1,    // RAM access bit
2143   0,    // fast call/return mode select bit
2144   0,    // second memory operand
2145   0,    // second literal operand
2146   POC_NOP,
2147   (PCC_W | PCC_REGISTER | PCC_C),   // inCond
2148   (PCC_W | PCC_C | PCC_DC | PCC_Z | PCC_OV | PCC_N), // outCond
2149   PCI_MAGIC
2150 };
2151
2152 pCodeInstruction pic16_pciSUBWF = {
2153   {PC_OPCODE, NULL, NULL, 0, NULL,
2154    //   genericAnalyze,
2155    genericDestruct,
2156    genericPrint},
2157   POC_SUBWF,
2158   "SUBWF",
2159   NULL, // from branch
2160   NULL, // to branch
2161   NULL, // label
2162   NULL, // operand
2163   NULL, // flow block
2164   NULL, // C source
2165   3,    // num ops
2166   1,0,  // dest, bit instruction
2167   0,0,  // branch, skip
2168   0,    // literal operand
2169   1,    // RAM access bit
2170   0,    // fast call/return mode select bit
2171   0,    // second memory operand
2172   0,    // second literal operand
2173   POC_NOP,
2174   (PCC_W | PCC_REGISTER),   // inCond
2175   (PCC_REGISTER | PCC_Z), // outCond
2176   PCI_MAGIC
2177 };
2178
2179 pCodeInstruction pic16_pciSUBFW = {
2180   {PC_OPCODE, NULL, NULL, 0, NULL,
2181    //   genericAnalyze,
2182    genericDestruct,
2183    genericPrint},
2184   POC_SUBFW,
2185   "SUBWF",
2186   NULL, // from branch
2187   NULL, // to branch
2188   NULL, // label
2189   NULL, // operand
2190   NULL, // flow block
2191   NULL, // C source
2192   3,    // num ops
2193   0,0,  // dest, bit instruction
2194   0,0,  // branch, skip
2195   0,    // literal operand
2196   1,    // RAM access bit
2197   0,    // fast call/return mode select bit
2198   0,    // second memory operand
2199   0,    // second literal operand
2200   POC_NOP,
2201   (PCC_W | PCC_REGISTER),   // inCond
2202   (PCC_W | PCC_Z | PCC_OV | PCC_N), // outCond
2203   PCI_MAGIC
2204 };
2205
2206 pCodeInstruction pic16_pciSUBFWB_D1 = { // mdubuc - New
2207   {PC_OPCODE, NULL, NULL, 0, NULL,
2208    //   genericAnalyze,
2209    genericDestruct,
2210    genericPrint},
2211   POC_SUBFWB_D1,
2212   "SUBFWB",
2213   NULL, // from branch
2214   NULL, // to branch
2215   NULL, // label
2216   NULL, // operand
2217   NULL, // flow block
2218   NULL, // C source
2219   3,    // num ops
2220   1,0,  // dest, bit instruction
2221   0,0,  // branch, skip
2222   0,    // literal operand
2223   1,    // RAM access bit
2224   0,    // fast call/return mode select bit
2225   0,    // second memory operand
2226   0,    // second literal operand
2227   POC_NOP,
2228   (PCC_W | PCC_REGISTER | PCC_C),   // inCond
2229   (PCC_REGISTER | PCC_Z | PCC_C | PCC_DC | PCC_OV | PCC_N), // outCond
2230   PCI_MAGIC
2231 };
2232
2233 pCodeInstruction pic16_pciSUBFWB_D0 = { // mdubuc - New
2234   {PC_OPCODE, NULL, NULL, 0, NULL,
2235    //   genericAnalyze,
2236    genericDestruct,
2237    genericPrint},
2238   POC_SUBFWB_D0,
2239   "SUBFWB",
2240   NULL, // from branch
2241   NULL, // to branch
2242   NULL, // label
2243   NULL, // operand
2244   NULL, // flow block
2245   NULL, // C source
2246   3,    // num ops
2247   0,0,  // dest, bit instruction
2248   0,0,  // branch, skip
2249   0,    // literal operand
2250   1,    // RAM access bit
2251   0,    // fast call/return mode select bit
2252   0,    // second memory operand
2253   0,    // second literal operand
2254   POC_NOP,
2255   (PCC_W | PCC_REGISTER | PCC_C),   // inCond
2256   (PCC_W | PCC_Z | PCC_C | PCC_DC | PCC_OV | PCC_N), // outCond
2257   PCI_MAGIC
2258 };
2259
2260 pCodeInstruction pic16_pciSUBWFB_D1 = { // mdubuc - New
2261   {PC_OPCODE, NULL, NULL, 0, NULL,
2262    //   genericAnalyze,
2263    genericDestruct,
2264    genericPrint},
2265   POC_SUBWFB_D1,
2266   "SUBWFB",
2267   NULL, // from branch
2268   NULL, // to branch
2269   NULL, // label
2270   NULL, // operand
2271   NULL, // flow block
2272   NULL, // C source
2273   3,    // num ops
2274   1,0,  // dest, bit instruction
2275   0,0,  // branch, skip
2276   0,    // literal operand
2277   1,    // RAM access bit
2278   0,    // fast call/return mode select bit
2279   0,    // second memory operand
2280   0,    // second literal operand
2281   POC_NOP,
2282   (PCC_W | PCC_REGISTER | PCC_C),   // inCond
2283   (PCC_REGISTER | PCC_Z | PCC_C | PCC_DC | PCC_OV | PCC_N), // outCond
2284   PCI_MAGIC
2285 };
2286
2287 pCodeInstruction pic16_pciSUBWFB_D0 = { // mdubuc - New
2288   {PC_OPCODE, NULL, NULL, 0, NULL,
2289    //   genericAnalyze,
2290    genericDestruct,
2291    genericPrint},
2292   POC_SUBWFB_D0,
2293   "SUBWFB",
2294   NULL, // from branch
2295   NULL, // to branch
2296   NULL, // label
2297   NULL, // operand
2298   NULL, // flow block
2299   NULL, // C source
2300   3,    // num ops
2301   0,0,  // dest, bit instruction
2302   0,0,  // branch, skip
2303   0,    // literal operand
2304   1,    // RAM access bit
2305   0,    // fast call/return mode select bit
2306   0,    // second memory operand
2307   0,    // second literal operand
2308   POC_NOP,
2309   (PCC_W | PCC_REGISTER | PCC_C),   // inCond
2310   (PCC_W | PCC_Z | PCC_C | PCC_DC | PCC_OV | PCC_N), // outCond
2311   PCI_MAGIC
2312 };
2313
2314 pCodeInstruction pic16_pciSWAPF = {
2315   {PC_OPCODE, NULL, NULL, 0, NULL,
2316    //   genericAnalyze,
2317    genericDestruct,
2318    genericPrint},
2319   POC_SWAPF,
2320   "SWAPF",
2321   NULL, // from branch
2322   NULL, // to branch
2323   NULL, // label
2324   NULL, // operand
2325   NULL, // flow block
2326   NULL, // C source
2327   3,    // num ops
2328   1,0,  // dest, bit instruction
2329   0,0,  // branch, skip
2330   0,    // literal operand
2331   1,    // RAM access bit
2332   0,    // fast call/return mode select bit
2333   0,    // second memory operand
2334   0,    // second literal operand
2335   POC_NOP,
2336   (PCC_REGISTER),   // inCond
2337   (PCC_REGISTER), // outCond
2338   PCI_MAGIC
2339 };
2340
2341 pCodeInstruction pic16_pciSWAPFW = {
2342   {PC_OPCODE, NULL, NULL, 0, NULL,
2343    //   genericAnalyze,
2344    genericDestruct,
2345    genericPrint},
2346   POC_SWAPFW,
2347   "SWAPF",
2348   NULL, // from branch
2349   NULL, // to branch
2350   NULL, // label
2351   NULL, // operand
2352   NULL, // flow block
2353   NULL, // C source
2354   3,    // num ops
2355   0,0,  // dest, bit instruction
2356   0,0,  // branch, skip
2357   0,    // literal operand
2358   1,    // RAM access bit
2359   0,    // fast call/return mode select bit
2360   0,    // second memory operand
2361   0,    // second literal operand
2362   POC_NOP,
2363   (PCC_REGISTER),   // inCond
2364   (PCC_W), // outCond
2365   PCI_MAGIC
2366 };
2367
2368 pCodeInstruction pic16_pciTBLRD = {     // patch 15
2369   {PC_OPCODE, NULL, NULL, 0, NULL,
2370    genericDestruct,
2371    genericPrint},
2372   POC_TBLRD,
2373   "TBLRD*",
2374   NULL, // from branch
2375   NULL, // to branch
2376   NULL, // label
2377   NULL, // operand
2378   NULL, // flow block
2379   NULL, // C source
2380   0,    // num ops
2381   0,0,  // dest, bit instruction
2382   0,0,  // branch, skip
2383   0,    // literal operand
2384   0,    // RAM access bit
2385   0,    // fast call/return mode select bit
2386   0,    // second memory operand
2387   0,    // second literal operand
2388   POC_NOP,
2389   PCC_NONE,  // inCond
2390   PCC_NONE  , // outCond
2391   PCI_MAGIC
2392 };
2393
2394 pCodeInstruction pic16_pciTBLRD_POSTINC = {     // patch 15
2395   {PC_OPCODE, NULL, NULL, 0, NULL,
2396    genericDestruct,
2397    genericPrint},
2398   POC_TBLRD_POSTINC,
2399   "TBLRD*+",
2400   NULL, // from branch
2401   NULL, // to branch
2402   NULL, // label
2403   NULL, // operand
2404   NULL, // flow block
2405   NULL, // C source
2406   0,    // num ops
2407   0,0,  // dest, bit instruction
2408   0,0,  // branch, skip
2409   0,    // literal operand
2410   0,    // RAM access bit
2411   0,    // fast call/return mode select bit
2412   0,    // second memory operand
2413   0,    // second literal operand
2414   POC_NOP,
2415   PCC_NONE,  // inCond
2416   PCC_NONE  , // outCond
2417   PCI_MAGIC
2418 };
2419
2420 pCodeInstruction pic16_pciTBLRD_POSTDEC = {     // patch 15
2421   {PC_OPCODE, NULL, NULL, 0, NULL,
2422    genericDestruct,
2423    genericPrint},
2424   POC_TBLRD_POSTDEC,
2425   "TBLRD*-",
2426   NULL, // from branch
2427   NULL, // to branch
2428   NULL, // label
2429   NULL, // operand
2430   NULL, // flow block
2431   NULL, // C source
2432   0,    // num ops
2433   0,0,  // dest, bit instruction
2434   0,0,  // branch, skip
2435   0,    // literal operand
2436   0,    // RAM access bit
2437   0,    // fast call/return mode select bit
2438   0,    // second memory operand
2439   0,    // second literal operand
2440   POC_NOP,
2441   PCC_NONE,  // inCond
2442   PCC_NONE  , // outCond
2443   PCI_MAGIC
2444 };
2445
2446 pCodeInstruction pic16_pciTBLRD_PREINC = {      // patch 15
2447   {PC_OPCODE, NULL, NULL, 0, NULL,
2448    genericDestruct,
2449    genericPrint},
2450   POC_TBLRD_PREINC,
2451   "TBLRD+*",
2452   NULL, // from branch
2453   NULL, // to branch
2454   NULL, // label
2455   NULL, // operand
2456   NULL, // flow block
2457   NULL, // C source
2458   0,    // num ops
2459   0,0,  // dest, bit instruction
2460   0,0,  // branch, skip
2461   0,    // literal operand
2462   0,    // RAM access bit
2463   0,    // fast call/return mode select bit
2464   0,    // second memory operand
2465   0,    // second literal operand
2466   POC_NOP,
2467   PCC_NONE,  // inCond
2468   PCC_NONE  , // outCond
2469   PCI_MAGIC
2470 };
2471
2472 pCodeInstruction pic16_pciTBLWT = {     // patch 15
2473   {PC_OPCODE, NULL, NULL, 0, NULL,
2474    genericDestruct,
2475    genericPrint},
2476   POC_TBLWT,
2477   "TBLWT*",
2478   NULL, // from branch
2479   NULL, // to branch
2480   NULL, // label
2481   NULL, // operand
2482   NULL, // flow block
2483   NULL, // C source
2484   0,    // num ops
2485   0,0,  // dest, bit instruction
2486   0,0,  // branch, skip
2487   0,    // literal operand
2488   0,    // RAM access bit
2489   0,    // fast call/return mode select bit
2490   0,    // second memory operand
2491   0,    // second literal operand
2492   POC_NOP,
2493   PCC_NONE,  // inCond
2494   PCC_NONE  , // outCond
2495   PCI_MAGIC
2496 };
2497
2498 pCodeInstruction pic16_pciTBLWT_POSTINC = {     // patch 15
2499   {PC_OPCODE, NULL, NULL, 0, NULL,
2500    genericDestruct,
2501    genericPrint},
2502   POC_TBLWT_POSTINC,
2503   "TBLWT*+",
2504   NULL, // from branch
2505   NULL, // to branch
2506   NULL, // label
2507   NULL, // operand
2508   NULL, // flow block
2509   NULL, // C source
2510   0,    // num ops
2511   0,0,  // dest, bit instruction
2512   0,0,  // branch, skip
2513   0,    // literal operand
2514   0,    // RAM access bit
2515   0,    // fast call/return mode select bit
2516   0,    // second memory operand
2517   0,    // second literal operand
2518   POC_NOP,
2519   PCC_NONE,  // inCond
2520   PCC_NONE  , // outCond
2521   PCI_MAGIC
2522 };
2523
2524 pCodeInstruction pic16_pciTBLWT_POSTDEC = {     // patch 15
2525   {PC_OPCODE, NULL, NULL, 0, NULL,
2526    genericDestruct,
2527    genericPrint},
2528   POC_TBLWT_POSTDEC,
2529   "TBLWT*-",
2530   NULL, // from branch
2531   NULL, // to branch
2532   NULL, // label
2533   NULL, // operand
2534   NULL, // flow block
2535   NULL, // C source
2536   0,    // num ops
2537   0,0,  // dest, bit instruction
2538   0,0,  // branch, skip
2539   0,    // literal operand
2540   0,    // RAM access bit
2541   0,    // fast call/return mode select bit
2542   0,    // second memory operand
2543   0,    // second literal operand
2544   POC_NOP,
2545   PCC_NONE,  // inCond
2546   PCC_NONE  , // outCond
2547   PCI_MAGIC
2548 };
2549
2550 pCodeInstruction pic16_pciTBLWT_PREINC = {      // patch 15
2551   {PC_OPCODE, NULL, NULL, 0, NULL,
2552    genericDestruct,
2553    genericPrint},
2554   POC_TBLWT_PREINC,
2555   "TBLWT+*",
2556   NULL, // from branch
2557   NULL, // to branch
2558   NULL, // label
2559   NULL, // operand
2560   NULL, // flow block
2561   NULL, // C source
2562   0,    // num ops
2563   0,0,  // dest, bit instruction
2564   0,0,  // branch, skip
2565   0,    // literal operand
2566   0,    // RAM access bit
2567   0,    // fast call/return mode select bit
2568   0,    // second memory operand
2569   0,    // second literal operand
2570   POC_NOP,
2571   PCC_NONE,  // inCond
2572   PCC_NONE  , // outCond
2573   PCI_MAGIC
2574 };
2575
2576 pCodeInstruction pic16_pciTSTFSZ = { // mdubuc - New
2577   {PC_OPCODE, NULL, NULL, 0, NULL,
2578    //   genericAnalyze,
2579    genericDestruct,
2580    genericPrint},
2581   POC_TSTFSZ,
2582   "TSTFSZ",
2583   NULL, // from branch
2584   NULL, // to branch
2585   NULL, // label
2586   NULL, // operand
2587   NULL, // flow block
2588   NULL, // C source
2589   2,    // num ops
2590   0,0,  // dest, bit instruction
2591   1,1,  // branch, skip
2592   0,    // literal operand
2593   1,    // RAM access bit
2594   0,    // fast call/return mode select bit
2595   0,    // second memory operand
2596   0,    // second literal operand
2597   POC_NOP,
2598   PCC_REGISTER,   // inCond
2599   PCC_NONE, // outCond
2600   PCI_MAGIC
2601 };
2602
2603 pCodeInstruction pic16_pciXORWF = {
2604   {PC_OPCODE, NULL, NULL, 0, NULL,
2605    //   genericAnalyze,
2606    genericDestruct,
2607    genericPrint},
2608   POC_XORWF,
2609   "XORWF",
2610   NULL, // from branch
2611   NULL, // to branch
2612   NULL, // label
2613   NULL, // operand
2614   NULL, // flow block
2615   NULL, // C source
2616   3,    // num ops
2617   1,0,  // dest, bit instruction
2618   0,0,  // branch, skip
2619   0,    // literal operand
2620   1,    // RAM access bit
2621   0,    // fast call/return mode select bit
2622   0,    // second memory operand
2623   0,    // second literal operand
2624   POC_NOP,
2625   (PCC_W | PCC_REGISTER),   // inCond
2626   (PCC_REGISTER | PCC_Z | PCC_N), // outCond
2627   PCI_MAGIC
2628 };
2629
2630 pCodeInstruction pic16_pciXORFW = {
2631   {PC_OPCODE, NULL, NULL, 0, NULL,
2632    //   genericAnalyze,
2633    genericDestruct,
2634    genericPrint},
2635   POC_XORFW,
2636   "XORWF",
2637   NULL, // from branch
2638   NULL, // to branch
2639   NULL, // label
2640   NULL, // operand
2641   NULL, // flow block
2642   NULL, // C source
2643   3,    // num ops
2644   0,0,  // dest, bit instruction
2645   0,0,  // branch, skip
2646   0,    // literal operand
2647   1,    // RAM access bit
2648   0,    // fast call/return mode select bit
2649   0,    // second memory operand
2650   0,    // second literal operand
2651   POC_NOP,
2652   (PCC_W | PCC_REGISTER),   // inCond
2653   (PCC_W | PCC_Z | PCC_N), // outCond
2654   PCI_MAGIC
2655 };
2656
2657 pCodeInstruction pic16_pciXORLW = {
2658   {PC_OPCODE, NULL, NULL, 0, NULL,
2659    //   genericAnalyze,
2660    genericDestruct,
2661    genericPrint},
2662   POC_XORLW,
2663   "XORLW",
2664   NULL, // from branch
2665   NULL, // to branch
2666   NULL, // label
2667   NULL, // operand
2668   NULL, // flow block
2669   NULL, // C source
2670   1,    // num ops
2671   0,0,  // dest, bit instruction
2672   0,0,  // branch, skip
2673   1,    // literal operand
2674   1,    // RAM access bit
2675   0,    // fast call/return mode select bit
2676   0,    // second memory operand
2677   0,    // second literal operand
2678   POC_NOP,
2679   (PCC_W | PCC_LITERAL),   // inCond
2680   (PCC_W | PCC_Z | PCC_C | PCC_DC | PCC_N), // outCond
2681   PCI_MAGIC
2682 };
2683
2684
2685 #define MAX_PIC16MNEMONICS 100
2686 pCodeInstruction *pic16Mnemonics[MAX_PIC16MNEMONICS];
2687
2688 //#define USE_VSNPRINTF
2689 #if OPT_DISABLE_PIC
2690
2691 #ifdef USE_VSNPRINTF
2692   // Alas, vsnprintf is not ANSI standard, and does not exist
2693   // on Solaris (and probably other non-Gnu flavored Unixes).
2694
2695 /*-----------------------------------------------------------------*/
2696 /* SAFE_snprintf - like snprintf except the string pointer is      */
2697 /*                 after the string has been printed to. This is   */
2698 /*                 useful for printing to string as though if it   */
2699 /*                 were a stream.                                  */
2700 /*-----------------------------------------------------------------*/
2701 void SAFE_snprintf(char **str, size_t *size, const  char  *format, ...)
2702 {
2703   va_list val;
2704   int len;
2705
2706   if(!str || !*str)
2707     return;
2708
2709   va_start(val, format);
2710
2711   vsnprintf(*str, *size, format, val);
2712
2713   va_end (val);
2714
2715   len = strlen(*str);
2716   if(len > *size) {
2717     fprintf(stderr,"WARNING, it looks like %s has overflowed\n",__FUNCTION__);
2718     fprintf(stderr,"len = %d is > str size %d\n",len,*size);
2719   }
2720
2721   *str += len;
2722   *size -= len;
2723
2724 }
2725
2726 #else
2727 // This version is *not* safe, despite the name.
2728
2729 void SAFE_snprintf(char **str, size_t *size, const  char  *format, ...)
2730 {
2731   va_list val;
2732   int len;
2733   static char buffer[1024]; /* grossly conservative, but still not inherently safe */
2734
2735   if(!str || !*str)
2736     return;
2737
2738   va_start(val, format);
2739
2740   vsprintf(buffer, format, val);
2741   va_end (val);
2742
2743   len = strlen(buffer);
2744   if(len > *size) {
2745     fprintf(stderr,"WARNING, it looks like %s has overflowed\n",__FUNCTION__);
2746     fprintf(stderr,"len = %d is > str size %d\n",len, (int) *size);
2747   }
2748
2749   strcpy(*str, buffer);
2750   *str += len;
2751   *size -= len;
2752
2753 }
2754
2755 #endif    //  USE_VSNPRINTF
2756 #endif
2757
2758 extern  void pic16_initStack(int base_address, int size);
2759 extern regs *pic16_allocProcessorRegister(int rIdx, char * name, short po_type, int alias);
2760 extern regs *pic16_allocInternalRegister(int rIdx, char * name, short po_type, int alias);
2761 extern void pic16_init_pic(char *);
2762
2763 void  pic16_pCodeInitRegisters(void)
2764 {
2765   static int initialized=0;
2766
2767         if(initialized)
2768                 return;
2769
2770         initialized = 1;
2771
2772         pic16_initStack(0xfff, 8);
2773         pic16_init_pic(port->processor);
2774
2775         pic16_pc_status.r = pic16_allocProcessorRegister(IDX_STATUS,"STATUS", PO_STATUS, 0x80);
2776         pic16_pc_pcl.r = pic16_allocProcessorRegister(IDX_PCL,"PCL", PO_PCL, 0x80);
2777         pic16_pc_pclath.r = pic16_allocProcessorRegister(IDX_PCLATH,"PCLATH", PO_PCLATH, 0x80);
2778         pic16_pc_pclatu.r = pic16_allocProcessorRegister(IDX_PCLATU,"PCLATU", PO_PCLATU, 0x80);
2779         pic16_pc_intcon.r = pic16_allocProcessorRegister(IDX_INTCON,"INTCON", PO_INTCON, 0x80);
2780         pic16_pc_wreg.r = pic16_allocProcessorRegister(IDX_WREG,"WREG", PO_WREG, 0x80);
2781         pic16_pc_bsr.r = pic16_allocProcessorRegister(IDX_BSR,"BSR", PO_BSR, 0x80);
2782
2783         pic16_pc_tosl.r = pic16_allocProcessorRegister(IDX_TOSL,"TOSL", PO_SFR_REGISTER, 0x80);
2784         pic16_pc_tosh.r = pic16_allocProcessorRegister(IDX_TOSH,"TOSH", PO_SFR_REGISTER, 0x80);
2785         pic16_pc_tosu.r = pic16_allocProcessorRegister(IDX_TOSU,"TOSU", PO_SFR_REGISTER, 0x80);
2786
2787         pic16_pc_tblptrl.r = pic16_allocProcessorRegister(IDX_TBLPTRL,"TBLPTRL", PO_SFR_REGISTER, 0x80); // patch 15
2788         pic16_pc_tblptrh.r = pic16_allocProcessorRegister(IDX_TBLPTRH,"TBLPTRH", PO_SFR_REGISTER, 0x80); // patch 15
2789         pic16_pc_tblptru.r = pic16_allocProcessorRegister(IDX_TBLPTRU,"TBLPTRU", PO_SFR_REGISTER, 0x80); // patch 15
2790         pic16_pc_tablat.r = pic16_allocProcessorRegister(IDX_TABLAT,"TABLAT", PO_SFR_REGISTER, 0x80); // patch 15
2791
2792
2793 //      pic16_pc_fsr0.r = pic16_allocProcessorRegister(IDX_FSR0,"FSR0", PO_FSR0, 0x80); // deprecated !
2794
2795         pic16_pc_fsr0l.r = pic16_allocProcessorRegister(IDX_FSR0L, "FSR0L", PO_FSR0, 0x80);
2796         pic16_pc_fsr0h.r = pic16_allocProcessorRegister(IDX_FSR0H, "FSR0H", PO_FSR0, 0x80);
2797         pic16_pc_fsr1l.r = pic16_allocProcessorRegister(IDX_FSR1L, "FSR1L", PO_FSR0, 0x80);
2798         pic16_pc_fsr1h.r = pic16_allocProcessorRegister(IDX_FSR1H, "FSR1H", PO_FSR0, 0x80);
2799         pic16_pc_fsr2l.r = pic16_allocProcessorRegister(IDX_FSR2L, "FSR2L", PO_FSR0, 0x80);
2800         pic16_pc_fsr2h.r = pic16_allocProcessorRegister(IDX_FSR2H, "FSR2H", PO_FSR0, 0x80);
2801
2802         pic16_pc_indf0.r = pic16_allocProcessorRegister(IDX_INDF0,"INDF0", PO_INDF0, 0x80);
2803         pic16_pc_postinc0.r = pic16_allocProcessorRegister(IDX_POSTINC0, "POSTINC0", PO_INDF0, 0x80);
2804         pic16_pc_postdec0.r = pic16_allocProcessorRegister(IDX_POSTDEC0, "POSTDEC0", PO_INDF0, 0x80);
2805         pic16_pc_preinc0.r = pic16_allocProcessorRegister(IDX_PREINC0, "PREINC0", PO_INDF0, 0x80);
2806         pic16_pc_plusw0.r = pic16_allocProcessorRegister(IDX_PLUSW0, "PLUSW0", PO_INDF0, 0x80);
2807
2808         pic16_pc_indf1.r = pic16_allocProcessorRegister(IDX_INDF1,"INDF1", PO_INDF0, 0x80);
2809         pic16_pc_postinc1.r = pic16_allocProcessorRegister(IDX_POSTINC1, "POSTINC1", PO_INDF0, 0x80);
2810         pic16_pc_postdec1.r = pic16_allocProcessorRegister(IDX_POSTDEC1, "POSTDEC1", PO_INDF0, 0x80);
2811         pic16_pc_preinc1.r = pic16_allocProcessorRegister(IDX_PREINC1, "PREINC1", PO_INDF0, 0x80);
2812         pic16_pc_plusw1.r = pic16_allocProcessorRegister(IDX_PLUSW1, "PLUSW1", PO_INDF0, 0x80);
2813
2814         pic16_pc_indf2.r = pic16_allocProcessorRegister(IDX_INDF2,"INDF2", PO_INDF0, 0x80);
2815         pic16_pc_postinc2.r = pic16_allocProcessorRegister(IDX_POSTINC2, "POSTINC2", PO_INDF0, 0x80);
2816         pic16_pc_postdec2.r = pic16_allocProcessorRegister(IDX_POSTDEC2, "POSTDEC2", PO_INDF0, 0x80);
2817         pic16_pc_preinc2.r = pic16_allocProcessorRegister(IDX_PREINC2, "PREINC2", PO_INDF0, 0x80);
2818         pic16_pc_plusw2.r = pic16_allocProcessorRegister(IDX_PLUSW2, "PLUSW2", PO_INDF0, 0x80);
2819
2820         pic16_pc_prodl.r = pic16_allocProcessorRegister(IDX_PRODL, "PRODL", PO_PRODL, 0x80);
2821         pic16_pc_prodh.r = pic16_allocProcessorRegister(IDX_PRODH, "PRODH", PO_PRODH, 0x80);
2822
2823         pic16_pc_status.rIdx = IDX_STATUS;
2824         pic16_pc_intcon.rIdx = IDX_INTCON;
2825         pic16_pc_pcl.rIdx = IDX_PCL;
2826         pic16_pc_pclath.rIdx = IDX_PCLATH;
2827         pic16_pc_pclatu.rIdx = IDX_PCLATU;
2828         pic16_pc_wreg.rIdx = IDX_WREG;
2829         pic16_pc_bsr.rIdx = IDX_BSR;
2830
2831         pic16_pc_tosl.rIdx = IDX_TOSL;
2832         pic16_pc_tosh.rIdx = IDX_TOSH;
2833         pic16_pc_tosu.rIdx = IDX_TOSU;
2834
2835         pic16_pc_tblptrl.rIdx = IDX_TBLPTRL; // patch 15
2836         pic16_pc_tblptrh.rIdx = IDX_TBLPTRH; // patch 15
2837         pic16_pc_tblptru.rIdx = IDX_TBLPTRU; // patch 15
2838         pic16_pc_tablat.rIdx = IDX_TABLAT;   // patch 15
2839
2840 //      pic16_pc_fsr0.rIdx = IDX_FSR0;
2841         pic16_pc_fsr0l.rIdx = IDX_FSR0L;
2842         pic16_pc_fsr0h.rIdx = IDX_FSR0H;
2843         pic16_pc_fsr1l.rIdx = IDX_FSR1L;
2844         pic16_pc_fsr1h.rIdx = IDX_FSR1H;
2845         pic16_pc_fsr2l.rIdx = IDX_FSR2L;
2846         pic16_pc_fsr2h.rIdx = IDX_FSR2H;
2847         pic16_pc_indf0.rIdx = IDX_INDF0;
2848         pic16_pc_postinc0.rIdx = IDX_POSTINC0;
2849         pic16_pc_postdec0.rIdx = IDX_POSTDEC0;
2850         pic16_pc_preinc0.rIdx = IDX_PREINC0;
2851         pic16_pc_plusw0.rIdx = IDX_PLUSW0;
2852         pic16_pc_indf1.rIdx = IDX_INDF1;
2853         pic16_pc_postinc1.rIdx = IDX_POSTINC1;
2854         pic16_pc_postdec1.rIdx = IDX_POSTDEC1;
2855         pic16_pc_preinc1.rIdx = IDX_PREINC1;
2856         pic16_pc_plusw1.rIdx = IDX_PLUSW1;
2857         pic16_pc_indf2.rIdx = IDX_INDF2;
2858         pic16_pc_postinc2.rIdx = IDX_POSTINC2;
2859         pic16_pc_postdec2.rIdx = IDX_POSTDEC2;
2860         pic16_pc_preinc2.rIdx = IDX_PREINC2;
2861         pic16_pc_plusw2.rIdx = IDX_PLUSW2;
2862         pic16_pc_prodl.rIdx = IDX_PRODL;
2863         pic16_pc_prodh.rIdx = IDX_PRODH;
2864
2865         pic16_pc_kzero.r = pic16_allocInternalRegister(IDX_KZ,"KZ",PO_GPR_REGISTER,0);
2866         pic16_pc_ssave.r = pic16_allocInternalRegister(IDX_SSAVE,"SSAVE", PO_GPR_REGISTER, 0);
2867         pic16_pc_wsave.r = pic16_allocInternalRegister(IDX_WSAVE,"WSAVE", PO_GPR_REGISTER, 0);
2868
2869         pic16_pc_kzero.rIdx = IDX_KZ;
2870         pic16_pc_wsave.rIdx = IDX_WSAVE;
2871         pic16_pc_ssave.rIdx = IDX_SSAVE;
2872
2873         /* probably should put this in a separate initialization routine */
2874         pb_dead_pcodes = newpBlock();
2875
2876 }
2877
2878 #if OPT_DISABLE_PIC
2879 /*-----------------------------------------------------------------*/
2880 /*  mnem2key - convert a pic mnemonic into a hash key              */
2881 /*   (BTW - this spreads the mnemonics quite well)                 */
2882 /*                                                                 */
2883 /*-----------------------------------------------------------------*/
2884
2885 int mnem2key(char const *mnem)
2886 {
2887   int key = 0;
2888
2889   if(!mnem)
2890     return 0;
2891
2892   while(*mnem) {
2893
2894     key += toupper(*mnem++) +1;
2895
2896   }
2897
2898   return (key & 0x1f);
2899
2900 }
2901 #endif
2902
2903 void pic16initMnemonics(void)
2904 {
2905   int i = 0;
2906   int key;
2907   //  char *str;
2908   pCodeInstruction *pci;
2909
2910   if(mnemonics_initialized)
2911     return;
2912
2913   // NULL out the array before making the assignments
2914   // since we check the array contents below this initialization.
2915
2916   for (i = 0; i < MAX_PIC16MNEMONICS; i++) {
2917     pic16Mnemonics[i] = NULL;
2918   }
2919
2920   pic16Mnemonics[POC_ADDLW] = &pic16_pciADDLW;
2921   pic16Mnemonics[POC_ADDWF] = &pic16_pciADDWF;
2922   pic16Mnemonics[POC_ADDFW] = &pic16_pciADDFW;
2923   pic16Mnemonics[POC_ADDWFC] = &pic16_pciADDWFC;
2924   pic16Mnemonics[POC_ADDFWC] = &pic16_pciADDFWC;
2925   pic16Mnemonics[POC_ANDLW] = &pic16_pciANDLW;
2926   pic16Mnemonics[POC_ANDWF] = &pic16_pciANDWF;
2927   pic16Mnemonics[POC_ANDFW] = &pic16_pciANDFW;
2928   pic16Mnemonics[POC_BC] = &pic16_pciBC;
2929   pic16Mnemonics[POC_BCF] = &pic16_pciBCF;
2930   pic16Mnemonics[POC_BN] = &pic16_pciBN;
2931   pic16Mnemonics[POC_BNC] = &pic16_pciBNC;
2932   pic16Mnemonics[POC_BNN] = &pic16_pciBNN;
2933   pic16Mnemonics[POC_BNOV] = &pic16_pciBNOV;
2934   pic16Mnemonics[POC_BNZ] = &pic16_pciBNZ;
2935   pic16Mnemonics[POC_BOV] = &pic16_pciBOV;
2936   pic16Mnemonics[POC_BRA] = &pic16_pciBRA;
2937   pic16Mnemonics[POC_BSF] = &pic16_pciBSF;
2938   pic16Mnemonics[POC_BTFSC] = &pic16_pciBTFSC;
2939   pic16Mnemonics[POC_BTFSS] = &pic16_pciBTFSS;
2940   pic16Mnemonics[POC_BTG] = &pic16_pciBTG;
2941   pic16Mnemonics[POC_BZ] = &pic16_pciBZ;
2942   pic16Mnemonics[POC_CALL] = &pic16_pciCALL;
2943   pic16Mnemonics[POC_CLRF] = &pic16_pciCLRF;
2944   pic16Mnemonics[POC_CLRWDT] = &pic16_pciCLRWDT;
2945   pic16Mnemonics[POC_COMF] = &pic16_pciCOMF;
2946   pic16Mnemonics[POC_COMFW] = &pic16_pciCOMFW;
2947   pic16Mnemonics[POC_CPFSEQ] = &pic16_pciCPFSEQ;
2948   pic16Mnemonics[POC_CPFSGT] = &pic16_pciCPFSGT;
2949   pic16Mnemonics[POC_CPFSLT] = &pic16_pciCPFSLT;
2950   pic16Mnemonics[POC_DAW] = &pic16_pciDAW;
2951   pic16Mnemonics[POC_DCFSNZ] = &pic16_pciDCFSNZ;
2952   pic16Mnemonics[POC_DECF] = &pic16_pciDECF;
2953   pic16Mnemonics[POC_DECFW] = &pic16_pciDECFW;
2954   pic16Mnemonics[POC_DECFSZ] = &pic16_pciDECFSZ;
2955   pic16Mnemonics[POC_DECFSZW] = &pic16_pciDECFSZW;
2956   pic16Mnemonics[POC_GOTO] = &pic16_pciGOTO;
2957   pic16Mnemonics[POC_INCF] = &pic16_pciINCF;
2958   pic16Mnemonics[POC_INCFW] = &pic16_pciINCFW;
2959   pic16Mnemonics[POC_INCFSZ] = &pic16_pciINCFSZ;
2960   pic16Mnemonics[POC_INCFSZW] = &pic16_pciINCFSZW;
2961   pic16Mnemonics[POC_INFSNZ] = &pic16_pciINFSNZ;
2962   pic16Mnemonics[POC_IORWF] = &pic16_pciIORWF;
2963   pic16Mnemonics[POC_IORFW] = &pic16_pciIORFW;
2964   pic16Mnemonics[POC_IORLW] = &pic16_pciIORLW;
2965   pic16Mnemonics[POC_LFSR] = &pic16_pciLFSR;
2966   pic16Mnemonics[POC_MOVF] = &pic16_pciMOVF;
2967   pic16Mnemonics[POC_MOVFW] = &pic16_pciMOVFW;
2968   pic16Mnemonics[POC_MOVFF] = &pic16_pciMOVFF;
2969   pic16Mnemonics[POC_MOVLB] = &pic16_pciMOVLB;
2970   pic16Mnemonics[POC_MOVLW] = &pic16_pciMOVLW;
2971   pic16Mnemonics[POC_MOVWF] = &pic16_pciMOVWF;
2972   pic16Mnemonics[POC_MULLW] = &pic16_pciMULLW;
2973   pic16Mnemonics[POC_MULWF] = &pic16_pciMULWF;
2974   pic16Mnemonics[POC_NEGF] = &pic16_pciNEGF;
2975   pic16Mnemonics[POC_NOP] = &pic16_pciNOP;
2976   pic16Mnemonics[POC_POP] = &pic16_pciPOP;
2977   pic16Mnemonics[POC_PUSH] = &pic16_pciPUSH;
2978   pic16Mnemonics[POC_RCALL] = &pic16_pciRCALL;
2979   pic16Mnemonics[POC_RETFIE] = &pic16_pciRETFIE;
2980   pic16Mnemonics[POC_RETLW] = &pic16_pciRETLW;
2981   pic16Mnemonics[POC_RETURN] = &pic16_pciRETURN;
2982   pic16Mnemonics[POC_RLCF] = &pic16_pciRLCF;
2983   pic16Mnemonics[POC_RLCFW] = &pic16_pciRLCFW;
2984   pic16Mnemonics[POC_RLNCF] = &pic16_pciRLNCF; // was [POC_RLCF] !!!
2985   pic16Mnemonics[POC_RLNCFW] = &pic16_pciRLNCFW;
2986   pic16Mnemonics[POC_RRCF] = &pic16_pciRRCF;
2987   pic16Mnemonics[POC_RRCFW] = &pic16_pciRRCFW;
2988   pic16Mnemonics[POC_RRNCF] = &pic16_pciRRNCF;
2989   pic16Mnemonics[POC_RRNCFW] = &pic16_pciRRNCFW;
2990   pic16Mnemonics[POC_SETF] = &pic16_pciSETF;
2991   pic16Mnemonics[POC_SUBLW] = &pic16_pciSUBLW;
2992   pic16Mnemonics[POC_SUBWF] = &pic16_pciSUBWF;
2993   pic16Mnemonics[POC_SUBFW] = &pic16_pciSUBFW;
2994   pic16Mnemonics[POC_SUBWFB_D0] = &pic16_pciSUBWFB_D0;
2995   pic16Mnemonics[POC_SUBWFB_D1] = &pic16_pciSUBWFB_D1;
2996   pic16Mnemonics[POC_SUBFWB_D0] = &pic16_pciSUBFWB_D0;
2997   pic16Mnemonics[POC_SUBFWB_D1] = &pic16_pciSUBFWB_D1;
2998   pic16Mnemonics[POC_SWAPF] = &pic16_pciSWAPF;
2999   pic16Mnemonics[POC_SWAPFW] = &pic16_pciSWAPFW;
3000   pic16Mnemonics[POC_TBLRD] = &pic16_pciTBLRD;                  // patch 15
3001   pic16Mnemonics[POC_TBLRD_POSTINC] = &pic16_pciTBLRD_POSTINC;  //
3002   pic16Mnemonics[POC_TBLRD_POSTDEC] = &pic16_pciTBLRD_POSTDEC;  //
3003   pic16Mnemonics[POC_TBLRD_PREINC] = &pic16_pciTBLRD_PREINC;    //
3004   pic16Mnemonics[POC_TBLWT] = &pic16_pciTBLWT;                  //
3005   pic16Mnemonics[POC_TBLWT_POSTINC] = &pic16_pciTBLWT_POSTINC;  //
3006   pic16Mnemonics[POC_TBLWT_POSTDEC] = &pic16_pciTBLWT_POSTDEC;  //
3007   pic16Mnemonics[POC_TBLWT_PREINC] = &pic16_pciTBLWT_PREINC;    // patch 15
3008   pic16Mnemonics[POC_TSTFSZ] = &pic16_pciTSTFSZ;
3009   pic16Mnemonics[POC_XORLW] = &pic16_pciXORLW;
3010   pic16Mnemonics[POC_XORWF] = &pic16_pciXORWF;
3011   pic16Mnemonics[POC_XORFW] = &pic16_pciXORFW;
3012
3013   for(i=0; i<MAX_PIC16MNEMONICS; i++)
3014     if(pic16Mnemonics[i])
3015       hTabAddItem(&pic16MnemonicsHash, mnem2key(pic16Mnemonics[i]->mnemonic), pic16Mnemonics[i]);
3016   pci = hTabFirstItem(pic16MnemonicsHash, &key);
3017
3018   while(pci) {
3019     DFPRINTF((stderr, "element %d key %d, mnem %s\n",i++,key,pci->mnemonic));
3020     pci = hTabNextItem(pic16MnemonicsHash, &key);
3021   }
3022
3023   mnemonics_initialized = 1;
3024 }
3025
3026 int pic16_getpCodePeepCommand(char *cmd);
3027
3028 int pic16_getpCode(char *mnem,unsigned dest)
3029 {
3030
3031   pCodeInstruction *pci;
3032   int key = mnem2key(mnem);
3033
3034   if(!mnemonics_initialized)
3035     pic16initMnemonics();
3036
3037   pci = hTabFirstItemWK(pic16MnemonicsHash, key);
3038
3039   while(pci) {
3040
3041     if(STRCASECMP(pci->mnemonic, mnem) == 0) {
3042       if((pci->num_ops <= 1)
3043         || (pci->isModReg == dest)
3044         || (pci->isBitInst)
3045         || (pci->num_ops <= 2 && pci->isAccess)
3046         || (pci->num_ops <= 2 && pci->isFastCall)
3047         || (pci->num_ops <= 2 && pci->is2MemOp)
3048         || (pci->num_ops <= 2 && pci->is2LitOp) )
3049         return(pci->op);
3050     }
3051
3052     pci = hTabNextItemWK (pic16MnemonicsHash);
3053
3054   }
3055
3056   return -1;
3057 }
3058
3059 /*-----------------------------------------------------------------*
3060  * pic16initpCodePeepCommands
3061  *
3062  *-----------------------------------------------------------------*/
3063 void pic16initpCodePeepCommands(void)
3064 {
3065
3066   int key, i;
3067   peepCommand *pcmd;
3068
3069   i = 0;
3070   do {
3071     hTabAddItem(&pic16pCodePeepCommandsHash,
3072                 mnem2key(peepCommands[i].cmd), &peepCommands[i]);
3073     i++;
3074   } while (peepCommands[i].cmd);
3075
3076   pcmd = hTabFirstItem(pic16pCodePeepCommandsHash, &key);
3077
3078   while(pcmd) {
3079     //fprintf(stderr, "peep command %s  key %d\n",pcmd->cmd,pcmd->id);
3080     pcmd = hTabNextItem(pic16pCodePeepCommandsHash, &key);
3081   }
3082
3083 }
3084
3085 /*-----------------------------------------------------------------
3086  *
3087  *
3088  *-----------------------------------------------------------------*/
3089
3090 int pic16_getpCodePeepCommand(char *cmd)
3091 {
3092
3093   peepCommand *pcmd;
3094   int key = mnem2key(cmd);
3095
3096
3097   pcmd = hTabFirstItemWK(pic16pCodePeepCommandsHash, key);
3098
3099   while(pcmd) {
3100     // fprintf(stderr," comparing %s to %s\n",pcmd->cmd,cmd);
3101     if(STRCASECMP(pcmd->cmd, cmd) == 0) {
3102       return pcmd->id;
3103     }
3104
3105     pcmd = hTabNextItemWK (pic16pCodePeepCommandsHash);
3106
3107   }
3108
3109   return -1;
3110 }
3111
3112 static char getpBlock_dbName(pBlock *pb)
3113 {
3114   if(!pb)
3115     return 0;
3116
3117   if(pb->cmemmap)
3118     return pb->cmemmap->dbName;
3119
3120   return pb->dbName;
3121 }
3122 void pic16_pBlockConvert2ISR(pBlock *pb)
3123 {
3124         if(!pb)return;
3125
3126         if(pb->cmemmap)pb->cmemmap = NULL;
3127
3128         pb->dbName = 'I';
3129
3130         if(pic16_pcode_verbose)
3131                 fprintf(stderr, "%s:%d converting to 'I'interrupt pBlock\n", __FILE__, __LINE__);
3132 }
3133
3134 void pic16_pBlockConvert2Absolute(pBlock *pb)
3135 {
3136         if(!pb)return;
3137         if(pb->cmemmap)pb->cmemmap = NULL;
3138
3139         pb->dbName = 'A';
3140
3141         if(pic16_pcode_verbose)
3142                 fprintf(stderr, "%s:%d converting to 'A'bsolute pBlock\n", __FILE__, __LINE__);
3143 }
3144
3145 /*-----------------------------------------------------------------*/
3146 /* pic16_movepBlock2Head - given the dbname of a pBlock, move all  */
3147 /*                   instances to the front of the doubly linked   */
3148 /*                   list of pBlocks                               */
3149 /*-----------------------------------------------------------------*/
3150
3151 void pic16_movepBlock2Head(char dbName)
3152 {
3153   pBlock *pb;
3154
3155
3156   /* this can happen in sources without code,
3157    * only variable definitions */
3158   if(!the_pFile)return;
3159
3160   pb = the_pFile->pbHead;
3161
3162   while(pb) {
3163
3164     if(getpBlock_dbName(pb) == dbName) {
3165       pBlock *pbn = pb->next;
3166       pb->next = the_pFile->pbHead;
3167       the_pFile->pbHead->prev = pb;
3168       the_pFile->pbHead = pb;
3169
3170       if(pb->prev)
3171         pb->prev->next = pbn;
3172
3173       // If the pBlock that we just moved was the last
3174       // one in the link of all of the pBlocks, then we
3175       // need to point the tail to the block just before
3176       // the one we moved.
3177       // Note: if pb->next is NULL, then pb must have
3178       // been the last pBlock in the chain.
3179
3180       if(pbn)
3181         pbn->prev = pb->prev;
3182       else
3183         the_pFile->pbTail = pb->prev;
3184
3185       pb = pbn;
3186
3187     } else
3188       pb = pb->next;
3189
3190   }
3191
3192 }
3193
3194 void pic16_copypCode(FILE *of, char dbName)
3195 {
3196   pBlock *pb;
3197
3198         if(!of || !the_pFile)
3199                 return;
3200
3201         for(pb = the_pFile->pbHead; pb; pb = pb->next) {
3202                 if(getpBlock_dbName(pb) == dbName) {
3203 //                      fprintf(stderr, "%s:%d: output of pb= 0x%p\n", __FILE__, __LINE__, pb);
3204                         pBlockStats(of,pb);
3205                         pic16_printpBlock(of,pb);
3206                 }
3207         }
3208
3209 }
3210 void pic16_pcode_test(void)
3211 {
3212
3213   DFPRINTF((stderr,"pcode is alive!\n"));
3214
3215   //initMnemonics();
3216
3217   if(the_pFile) {
3218
3219     pBlock *pb;
3220     FILE *pFile;
3221     char buffer[100];
3222
3223     /* create the file name */
3224     strcpy(buffer,dstFileName);
3225     strcat(buffer,".p");
3226
3227     if( !(pFile = fopen(buffer, "w" ))) {
3228       werror(E_FILE_OPEN_ERR,buffer);
3229       exit(1);
3230     }
3231
3232     fprintf(pFile,"pcode dump\n\n");
3233
3234     for(pb = the_pFile->pbHead; pb; pb = pb->next) {
3235       fprintf(pFile,"\n\tNew pBlock\n\n");
3236       if(pb->cmemmap)
3237         fprintf(pFile,"%s",pb->cmemmap->sname);
3238       else
3239         fprintf(pFile,"internal pblock");
3240
3241       fprintf(pFile,", dbName =%c\n",getpBlock_dbName(pb));
3242       pic16_printpBlock(pFile,pb);
3243     }
3244   }
3245 }
3246 /*-----------------------------------------------------------------*/
3247 /* int RegCond(pCodeOp *pcop) - if pcop points to the STATUS reg-  */
3248 /*      ister, RegCond will return the bit being referenced.       */
3249 /*                                                                 */
3250 /* fixme - why not just OR in the pcop bit field                   */
3251 /*-----------------------------------------------------------------*/
3252
3253 static int RegCond(pCodeOp *pcop)
3254 {
3255
3256   if(!pcop)
3257     return 0;
3258
3259   if(pcop->type == PO_GPR_BIT  && !strcmp(pcop->name, pic16_pc_status.pcop.name)) {
3260     switch(PCORB(pcop)->bit) {
3261     case PIC_C_BIT:
3262       return PCC_C;
3263     case PIC_DC_BIT:
3264         return PCC_DC;
3265     case PIC_Z_BIT:
3266       return PCC_Z;
3267     }
3268
3269   }
3270
3271   return 0;
3272 }
3273
3274 /*-----------------------------------------------------------------*/
3275 /* pic16_newpCode - create and return a newly initialized pCode          */
3276 /*                                                                 */
3277 /*  fixme - rename this                                            */
3278 /*                                                                 */
3279 /* The purpose of this routine is to create a new Instruction      */
3280 /* pCode. This is called by gen.c while the assembly code is being */
3281 /* generated.                                                      */
3282 /*                                                                 */
3283 /* Inouts:                                                         */
3284 /*  PIC_OPCODE op - the assembly instruction we wish to create.    */
3285 /*                  (note that the op is analogous to but not the  */
3286 /*                  same thing as the opcode of the instruction.)  */
3287 /*  pCdoeOp *pcop - pointer to the operand of the instruction.     */
3288 /*                                                                 */
3289 /* Outputs:                                                        */
3290 /*  a pointer to the new malloc'd pCode is returned.               */
3291 /*                                                                 */
3292 /*                                                                 */
3293 /*                                                                 */
3294 /*-----------------------------------------------------------------*/
3295 pCode *pic16_newpCode (PIC_OPCODE op, pCodeOp *pcop)
3296 {
3297   pCodeInstruction *pci ;
3298
3299   if(!mnemonics_initialized)
3300     pic16initMnemonics();
3301
3302   pci = Safe_calloc(1, sizeof(pCodeInstruction));
3303
3304   if((op>=0) && (op < MAX_PIC16MNEMONICS) && pic16Mnemonics[op]) {
3305     memcpy(pci, pic16Mnemonics[op], sizeof(pCodeInstruction));
3306     pci->pcop = pcop;
3307
3308     if(pci->inCond & PCC_EXAMINE_PCOP)
3309       pci->inCond  |= RegCond(pcop);
3310
3311     if(pci->outCond & PCC_EXAMINE_PCOP)
3312       pci->outCond  |= RegCond(pcop);
3313
3314     pci->pc.prev = pci->pc.next = NULL;
3315     return (pCode *)pci;
3316   }
3317
3318   fprintf(stderr, "pCode mnemonic error %s,%d\n",__FUNCTION__,__LINE__);
3319   exit(1);
3320
3321   return NULL;
3322 }
3323
3324 /*-----------------------------------------------------------------*/
3325 /* pic16_newpCodeWild - create a "wild" as in wild card pCode            */
3326 /*                                                                 */
3327 /* Wild pcodes are used during the peep hole optimizer to serve    */
3328 /* as place holders for any instruction. When a snippet of code is */
3329 /* compared to a peep hole rule, the wild card opcode will match   */
3330 /* any instruction. However, the optional operand and label are    */
3331 /* additional qualifiers that must also be matched before the      */
3332 /* line (of assembly code) is declared matched. Note that the      */
3333 /* operand may be wild too.                                        */
3334 /*                                                                 */
3335 /*   Note, a wild instruction is specified just like a wild var:   */
3336 /*      %4     ; A wild instruction,                               */
3337 /*  See the peeph.def file for additional examples                 */
3338 /*                                                                 */
3339 /*-----------------------------------------------------------------*/
3340
3341 pCode *pic16_newpCodeWild(int pCodeID, pCodeOp *optional_operand, pCodeOp *optional_label)
3342 {
3343
3344   pCodeWild *pcw;
3345
3346   pcw = Safe_calloc(1,sizeof(pCodeWild));
3347
3348   pcw->pci.pc.type = PC_WILD;
3349   pcw->pci.pc.prev = pcw->pci.pc.next = NULL;
3350   pcw->pci.from = pcw->pci.to = pcw->pci.label = NULL;
3351   pcw->pci.pc.pb = NULL;
3352
3353   //  pcw->pci.pc.analyze = genericAnalyze;
3354   pcw->pci.pc.destruct = genericDestruct;
3355   pcw->pci.pc.print = genericPrint;
3356
3357   pcw->id = pCodeID;              // this is the 'n' in %n
3358   pcw->operand = optional_operand;
3359   pcw->label   = optional_label;
3360
3361   pcw->mustBeBitSkipInst = 0;
3362   pcw->mustNotBeBitSkipInst = 0;
3363   pcw->invertBitSkipInst = 0;
3364
3365   return ( (pCode *)pcw);
3366
3367 }
3368
3369  /*-----------------------------------------------------------------*/
3370 /* newPcodeInlineP - create a new pCode from a char string           */
3371 /*-----------------------------------------------------------------*/
3372
3373
3374 pCode *pic16_newpCodeInlineP(char *cP)
3375 {
3376
3377   pCodeComment *pcc ;
3378
3379   pcc = Safe_calloc(1,sizeof(pCodeComment));
3380
3381   pcc->pc.type = PC_INLINE;
3382   pcc->pc.prev = pcc->pc.next = NULL;
3383   //pcc->pc.from = pcc->pc.to = pcc->pc.label = NULL;
3384   pcc->pc.pb = NULL;
3385
3386   //  pcc->pc.analyze = genericAnalyze;
3387   pcc->pc.destruct = genericDestruct;
3388   pcc->pc.print = genericPrint;
3389
3390   if(cP)
3391     pcc->comment = Safe_strdup(cP);
3392   else
3393     pcc->comment = NULL;
3394
3395   return ( (pCode *)pcc);
3396
3397 }
3398
3399 /*-----------------------------------------------------------------*/
3400 /* newPcodeCharP - create a new pCode from a char string           */
3401 /*-----------------------------------------------------------------*/
3402
3403 pCode *pic16_newpCodeCharP(char *cP)
3404 {
3405
3406   pCodeComment *pcc ;
3407
3408   pcc = Safe_calloc(1,sizeof(pCodeComment));
3409
3410   pcc->pc.type = PC_COMMENT;
3411   pcc->pc.prev = pcc->pc.next = NULL;
3412   //pcc->pc.from = pcc->pc.to = pcc->pc.label = NULL;
3413   pcc->pc.pb = NULL;
3414
3415   //  pcc->pc.analyze = genericAnalyze;
3416   pcc->pc.destruct = genericDestruct;
3417   pcc->pc.print = genericPrint;
3418
3419   if(cP)
3420     pcc->comment = Safe_strdup(cP);
3421   else
3422     pcc->comment = NULL;
3423
3424   return ( (pCode *)pcc);
3425
3426 }
3427
3428 /*-----------------------------------------------------------------*/
3429 /* pic16_newpCodeFunction -                                              */
3430 /*-----------------------------------------------------------------*/
3431
3432
3433 pCode *pic16_newpCodeFunction(char *mod,char *f)
3434 {
3435   pCodeFunction *pcf;
3436
3437   pcf = Safe_calloc(1,sizeof(pCodeFunction));
3438
3439   pcf->pc.type = PC_FUNCTION;
3440   pcf->pc.prev = pcf->pc.next = NULL;
3441   //pcf->pc.from = pcf->pc.to = pcf->pc.label = NULL;
3442   pcf->pc.pb = NULL;
3443
3444   //  pcf->pc.analyze = genericAnalyze;
3445   pcf->pc.destruct = genericDestruct;
3446   pcf->pc.print = pCodePrintFunction;
3447
3448   pcf->ncalled = 0;
3449   pcf->absblock = 0;
3450
3451   if(mod) {
3452     pcf->modname = Safe_calloc(1,strlen(mod)+1);
3453     strcpy(pcf->modname,mod);
3454   } else
3455     pcf->modname = NULL;
3456
3457   if(f) {
3458     pcf->fname = Safe_calloc(1,strlen(f)+1);
3459     strcpy(pcf->fname,f);
3460   } else
3461     pcf->fname = NULL;
3462
3463   return ( (pCode *)pcf);
3464
3465 }
3466
3467 /*-----------------------------------------------------------------*/
3468 /* pic16_newpCodeFlow                                                    */
3469 /*-----------------------------------------------------------------*/
3470 static void destructpCodeFlow(pCode *pc)
3471 {
3472   if(!pc || !isPCFL(pc))
3473     return;
3474
3475 /*
3476   if(PCFL(pc)->from)
3477   if(PCFL(pc)->to)
3478 */
3479   pic16_unlinkpCode(pc);
3480
3481   deleteSet(&PCFL(pc)->registers);
3482   deleteSet(&PCFL(pc)->from);
3483   deleteSet(&PCFL(pc)->to);
3484   free(pc);
3485
3486 }
3487
3488 pCode *pic16_newpCodeFlow(void )
3489 {
3490   pCodeFlow *pcflow;
3491
3492   //_ALLOC(pcflow,sizeof(pCodeFlow));
3493   pcflow = Safe_calloc(1,sizeof(pCodeFlow));
3494
3495   pcflow->pc.type = PC_FLOW;
3496   pcflow->pc.prev = pcflow->pc.next = NULL;
3497   pcflow->pc.pb = NULL;
3498
3499   //  pcflow->pc.analyze = genericAnalyze;
3500   pcflow->pc.destruct = destructpCodeFlow;
3501   pcflow->pc.print = genericPrint;
3502
3503   pcflow->pc.seq = GpcFlowSeq++;
3504
3505   pcflow->from = pcflow->to = NULL;
3506
3507   pcflow->inCond = PCC_NONE;
3508   pcflow->outCond = PCC_NONE;
3509
3510   pcflow->firstBank = -1;
3511   pcflow->lastBank = -1;
3512
3513   pcflow->FromConflicts = 0;
3514   pcflow->ToConflicts = 0;
3515
3516   pcflow->end = NULL;
3517
3518   pcflow->registers = newSet();
3519
3520   return ( (pCode *)pcflow);
3521
3522 }
3523
3524 /*-----------------------------------------------------------------*/
3525 /*-----------------------------------------------------------------*/
3526 pCodeFlowLink *pic16_newpCodeFlowLink(pCodeFlow *pcflow)
3527 {
3528   pCodeFlowLink *pcflowLink;
3529
3530   pcflowLink = Safe_calloc(1,sizeof(pCodeFlowLink));
3531
3532   pcflowLink->pcflow = pcflow;
3533   pcflowLink->bank_conflict = 0;
3534
3535   return pcflowLink;
3536 }
3537
3538 /*-----------------------------------------------------------------*/
3539 /* pic16_newpCodeCSource - create a new pCode Source Symbol        */
3540 /*-----------------------------------------------------------------*/
3541
3542 pCode *pic16_newpCodeCSource(int ln, char *f, char *l)
3543 {
3544
3545   pCodeCSource *pccs;
3546
3547   pccs = Safe_calloc(1,sizeof(pCodeCSource));
3548
3549   pccs->pc.type = PC_CSOURCE;
3550   pccs->pc.prev = pccs->pc.next = NULL;
3551   pccs->pc.pb = NULL;
3552
3553   pccs->pc.destruct = genericDestruct;
3554   pccs->pc.print = genericPrint;
3555
3556   pccs->line_number = ln;
3557   if(l)
3558     pccs->line = Safe_strdup(l);
3559   else
3560     pccs->line = NULL;
3561
3562   if(f)
3563     pccs->file_name = Safe_strdup(f);
3564   else
3565     pccs->file_name = NULL;
3566
3567   return ( (pCode *)pccs);
3568
3569 }
3570
3571
3572 /*******************************************************************/
3573 /* pic16_newpCodeAsmDir - create a new pCode Assembler Directive   */
3574 /*                      added by VR 6-Jun-2003                     */
3575 /*******************************************************************/
3576
3577 pCode *pic16_newpCodeAsmDir(char *asdir, char *argfmt, ...)
3578 {
3579   pCodeAsmDir *pcad;
3580   va_list ap;
3581   char buffer[512];
3582   char *lbp=buffer;
3583
3584         pcad = Safe_calloc(1, sizeof(pCodeAsmDir));
3585         pcad->pci.pc.type = PC_ASMDIR;
3586         pcad->pci.pc.prev = pcad->pci.pc.next = NULL;
3587         pcad->pci.pc.pb = NULL;
3588
3589         pcad->pci.pc.destruct = genericDestruct;
3590         pcad->pci.pc.print = genericPrint;
3591
3592         if(asdir && *asdir) {
3593
3594                 while(isspace(*asdir))asdir++;  // strip any white space from the beginning
3595
3596                 pcad->directive = Safe_strdup( asdir );
3597         }
3598
3599         va_start(ap, argfmt);
3600
3601         memset(buffer, 0, sizeof(buffer));
3602         if(argfmt && *argfmt)
3603                 vsprintf(buffer, argfmt, ap);
3604
3605         va_end(ap);
3606
3607         while(isspace(*lbp))lbp++;
3608
3609         if(lbp && *lbp)
3610                 pcad->arg = Safe_strdup( lbp );
3611
3612   return ((pCode *)pcad);
3613 }
3614
3615 /*-----------------------------------------------------------------*/
3616 /* pCodeLabelDestruct - free memory used by a label.               */
3617 /*-----------------------------------------------------------------*/
3618 static void pCodeLabelDestruct(pCode *pc)
3619 {
3620
3621   if(!pc)
3622     return;
3623
3624   if((pc->type == PC_LABEL) && PCL(pc)->label)
3625     free(PCL(pc)->label);
3626
3627   free(pc);
3628
3629 }
3630
3631 pCode *pic16_newpCodeLabel(char *name, int key)
3632 {
3633
3634   char *s = buffer;
3635   pCodeLabel *pcl;
3636
3637   pcl = Safe_calloc(1,sizeof(pCodeLabel) );
3638
3639   pcl->pc.type = PC_LABEL;
3640   pcl->pc.prev = pcl->pc.next = NULL;
3641   //pcl->pc.from = pcl->pc.to = pcl->pc.label = NULL;
3642   pcl->pc.pb = NULL;
3643
3644   //  pcl->pc.analyze = genericAnalyze;
3645   pcl->pc.destruct = pCodeLabelDestruct;
3646   pcl->pc.print = pCodePrintLabel;
3647
3648   pcl->key = key;
3649   pcl->force = 0;
3650
3651   pcl->label = NULL;
3652   if(key>0) {
3653     sprintf(s,"_%05d_DS_",key);
3654   } else
3655     s = name;
3656
3657   if(s)
3658     pcl->label = Safe_strdup(s);
3659
3660 //  if(pic16_pcode_verbose)
3661 //      fprintf(stderr, "%s:%d label name: %s\n", __FILE__, __LINE__, pcl->label);
3662
3663
3664   return ( (pCode *)pcl);
3665
3666 }
3667
3668 pCode *pic16_newpCodeLabelFORCE(char *name, int key)
3669 {
3670   pCodeLabel *pcl = (pCodeLabel *)pic16_newpCodeLabel(name, key);
3671
3672         pcl->force = 1;
3673
3674   return ( (pCode *)pcl );
3675 }
3676
3677
3678 /*-----------------------------------------------------------------*/
3679 /* newpBlock - create and return a pointer to a new pBlock         */
3680 /*-----------------------------------------------------------------*/
3681 static pBlock *newpBlock(void)
3682 {
3683
3684   pBlock *PpB;
3685
3686   PpB = Safe_calloc(1,sizeof(pBlock) );
3687   PpB->next = PpB->prev = NULL;
3688
3689   PpB->function_entries = PpB->function_exits = PpB->function_calls = NULL;
3690   PpB->tregisters = NULL;
3691   PpB->visited = 0;
3692   PpB->FlowTree = NULL;
3693
3694   return PpB;
3695
3696 }
3697
3698 /*-----------------------------------------------------------------*/
3699 /* pic16_newpCodeChain - create a new chain of pCodes                    */
3700 /*-----------------------------------------------------------------*
3701  *
3702  *  This function will create a new pBlock and the pointer to the
3703  *  pCode that is passed in will be the first pCode in the block.
3704  *-----------------------------------------------------------------*/
3705
3706
3707 pBlock *pic16_newpCodeChain(memmap *cm,char c, pCode *pc)
3708 {
3709
3710   pBlock *pB  = newpBlock();
3711
3712   pB->pcHead  = pB->pcTail = pc;
3713   pB->cmemmap = cm;
3714   pB->dbName  = c;
3715
3716   return pB;
3717 }
3718
3719 /*-----------------------------------------------------------------*/
3720 /* pic16_newpCodeOpLabel - Create a new label given the key              */
3721 /*  Note, a negative key means that the label is part of wild card */
3722 /*  (and hence a wild card label) used in the pCodePeep            */
3723 /*   optimizations).                                               */
3724 /*-----------------------------------------------------------------*/
3725
3726 pCodeOp *pic16_newpCodeOpLabel(char *name, int key)
3727 {
3728   char *s=NULL;
3729   static int label_key=-1;
3730
3731   pCodeOp *pcop;
3732
3733   pcop = Safe_calloc(1,sizeof(pCodeOpLabel) );
3734   pcop->type = PO_LABEL;
3735
3736   pcop->name = NULL;
3737
3738   if(key>0)
3739     sprintf(s=buffer,"_%05d_DS_",key);
3740   else
3741     s = name, key = label_key--;
3742
3743   if(s)
3744     pcop->name = Safe_strdup(s);
3745
3746   ((pCodeOpLabel *)pcop)->key = key;
3747
3748   //fprintf(stderr,"pic16_newpCodeOpLabel: key=%d, name=%s\n",key,((s)?s:""));
3749   return pcop;
3750 }
3751
3752 /*-----------------------------------------------------------------*/
3753 /*-----------------------------------------------------------------*/
3754 pCodeOp *pic16_newpCodeOpLit(int lit)
3755 {
3756   char *s = buffer;
3757   pCodeOp *pcop;
3758
3759
3760   pcop = Safe_calloc(1,sizeof(pCodeOpLit) );
3761   pcop->type = PO_LITERAL;
3762
3763   pcop->name = NULL;
3764   if(lit>=0) {
3765     sprintf(s,"0x%02x",lit);
3766     if(s)
3767       pcop->name = Safe_strdup(s);
3768   }
3769
3770   ((pCodeOpLit *)pcop)->lit = lit;
3771
3772   return pcop;
3773 }
3774
3775 /*-----------------------------------------------------------------*/
3776 /*-----------------------------------------------------------------*/
3777 pCodeOp *pic16_newpCodeOpLit2(int lit, pCodeOp *arg2)
3778 {
3779   char *s = buffer, tbuf[256], *tb=tbuf;
3780   pCodeOp *pcop;
3781
3782
3783   tb = pic16_get_op(arg2, NULL, 0);
3784   pcop = Safe_calloc(1,sizeof(pCodeOpLit2) );
3785   pcop->type = PO_LITERAL;
3786
3787   pcop->name = NULL;
3788   if(lit>=0) {
3789     sprintf(s,"0x%02x, %s",lit, tb);
3790     if(s)
3791       pcop->name = Safe_strdup(s);
3792   }
3793
3794   ((pCodeOpLit2 *)pcop)->lit = lit;
3795   ((pCodeOpLit2 *)pcop)->arg2 = arg2;
3796
3797   return pcop;
3798 }
3799
3800 /*-----------------------------------------------------------------*/
3801 /*-----------------------------------------------------------------*/
3802 pCodeOp *pic16_newpCodeOpImmd(char *name, int offset, int index, int code_space)
3803 {
3804   pCodeOp *pcop;
3805
3806         pcop = Safe_calloc(1,sizeof(pCodeOpImmd) );
3807         pcop->type = PO_IMMEDIATE;
3808         if(name) {
3809                 regs *r = pic16_dirregWithName(name);
3810                 pcop->name = Safe_strdup(name);
3811                 PCOI(pcop)->r = r;
3812
3813                 if(r) {
3814 //                      fprintf(stderr, "%s:%d %s reg %s exists\n",__FILE__, __LINE__, __FUNCTION__, name);
3815                         PCOI(pcop)->rIdx = r->rIdx;
3816                 } else {
3817 //                      fprintf(stderr, "%s:%d %s reg %s doesn't exist\n",
3818 //                              __FILE__, __LINE__, __FUNCTION__, name);
3819                         PCOI(pcop)->rIdx = -1;
3820                 }
3821 //                      fprintf(stderr,"%s %s %d\n",__FUNCTION__,name,offset);
3822         } else {
3823                 pcop->name = NULL;
3824         }
3825
3826         PCOI(pcop)->index = index;
3827         PCOI(pcop)->offset = offset;
3828         PCOI(pcop)->_const = code_space;
3829
3830   return pcop;
3831 }
3832
3833 /*-----------------------------------------------------------------*/
3834 /*-----------------------------------------------------------------*/
3835 pCodeOp *pic16_newpCodeOpWild(int id, pCodeWildBlock *pcwb, pCodeOp *subtype)
3836 {
3837   char *s = buffer;
3838   pCodeOp *pcop;
3839
3840
3841   if(!pcwb || !subtype) {
3842     fprintf(stderr, "Wild opcode declaration error: %s-%d\n",__FILE__,__LINE__);
3843     exit(1);
3844   }
3845
3846   pcop = Safe_calloc(1,sizeof(pCodeOpWild));
3847   pcop->type = PO_WILD;
3848   sprintf(s,"%%%d",id);
3849   pcop->name = Safe_strdup(s);
3850
3851   PCOW(pcop)->id = id;
3852   PCOW(pcop)->pcwb = pcwb;
3853   PCOW(pcop)->subtype = subtype;
3854   PCOW(pcop)->matched = NULL;
3855
3856   PCOW(pcop)->pcop2 = NULL;
3857
3858   return pcop;
3859 }
3860
3861 /*-----------------------------------------------------------------*/
3862 /*-----------------------------------------------------------------*/
3863 pCodeOp *pic16_newpCodeOpWild2(int id, int id2, pCodeWildBlock *pcwb, pCodeOp *subtype, pCodeOp *subtype2)
3864 {
3865   char *s = buffer;
3866   pCodeOp *pcop;
3867
3868
3869         if(!pcwb || !subtype || !subtype2) {
3870                 fprintf(stderr, "Wild opcode declaration error: %s-%d\n",__FILE__,__LINE__);
3871                 exit(1);
3872         }
3873
3874         pcop = Safe_calloc(1,sizeof(pCodeOpWild));
3875         pcop->type = PO_WILD;
3876         sprintf(s,"%%%d",id);
3877         pcop->name = Safe_strdup(s);
3878
3879         PCOW(pcop)->id = id;
3880         PCOW(pcop)->pcwb = pcwb;
3881         PCOW(pcop)->subtype = subtype;
3882         PCOW(pcop)->matched = NULL;
3883
3884         PCOW(pcop)->pcop2 = Safe_calloc(1, sizeof(pCodeOpWild));
3885
3886         if(!subtype2->name) {
3887                 PCOW(pcop)->pcop2 = Safe_calloc(1, sizeof(pCodeOpWild));
3888                 PCOW2(pcop)->pcop.type = PO_WILD;
3889                 sprintf(s, "%%%d", id2);
3890                 PCOW2(pcop)->pcop.name = Safe_strdup(s);
3891                 PCOW2(pcop)->id = id2;
3892                 PCOW2(pcop)->subtype = subtype2;
3893
3894 //              fprintf(stderr, "%s:%d %s [wild,wild] for name: %s (%d)\tname2: %s (%d)\n", __FILE__, __LINE__, __FUNCTION__,
3895 //                              pcop->name, id, PCOW2(pcop)->pcop.name, id2);
3896         } else {
3897                 PCOW2(pcop)->pcop2 = pic16_pCodeOpCopy( subtype2 );
3898
3899 //              fprintf(stderr, "%s:%d %s [wild,str] for name: %s (%d)\tname2: %s (%d)\n", __FILE__, __LINE__, __FUNCTION__,
3900 //                              pcop->name, id, PCOW2(pcop)->pcop.name, id2);
3901         }
3902
3903
3904
3905   return pcop;
3906 }
3907
3908 /*-----------------------------------------------------------------*/
3909 /*-----------------------------------------------------------------*/
3910 pCodeOp *pic16_newpCodeOpBit(char *s, int bit, int inBitSpace)
3911 {
3912   pCodeOp *pcop;
3913
3914   pcop = Safe_calloc(1,sizeof(pCodeOpRegBit) );
3915   pcop->type = PO_GPR_BIT;
3916   if(s)
3917     pcop->name = Safe_strdup(s);
3918   else
3919     pcop->name = NULL;
3920
3921   PCORB(pcop)->bit = bit;
3922   PCORB(pcop)->inBitSpace = inBitSpace;
3923
3924   /* pCodeOpBit is derived from pCodeOpReg. We need to init this too */
3925   PCOR(pcop)->r = NULL;
3926   PCOR(pcop)->rIdx = 0;
3927   return pcop;
3928 }
3929
3930 /*-----------------------------------------------------------------*
3931  * pCodeOp *pic16_newpCodeOpReg(int rIdx) - allocate a new register
3932  *
3933  * If rIdx >=0 then a specific register from the set of registers
3934  * will be selected. If rIdx <0, then a new register will be searched
3935  * for.
3936  *-----------------------------------------------------------------*/
3937
3938 pCodeOp *pic16_newpCodeOpReg(int rIdx)
3939 {
3940   pCodeOp *pcop;
3941
3942   pcop = Safe_calloc(1,sizeof(pCodeOpReg) );
3943
3944   pcop->name = NULL;
3945
3946   if(rIdx >= 0) {
3947     PCOR(pcop)->rIdx = rIdx;
3948     PCOR(pcop)->r = pic16_regWithIdx(rIdx);
3949   } else {
3950     PCOR(pcop)->r = pic16_findFreeReg(REG_GPR);
3951
3952     if(PCOR(pcop)->r)
3953       PCOR(pcop)->rIdx = PCOR(pcop)->r->rIdx;
3954     else {
3955         fprintf(stderr, "%s:%d Could not find a free GPR register\n",
3956                 __FUNCTION__, __LINE__);
3957         exit(-1);
3958     }
3959   }
3960
3961   pcop->type = PCOR(pcop)->r->pc_type;
3962
3963   return pcop;
3964 }
3965
3966 pCodeOp *pic16_newpCodeOpRegFromStr(char *name)
3967 {
3968   pCodeOp *pcop;
3969   regs *r;
3970
3971         pcop = Safe_calloc(1,sizeof(pCodeOpReg) );
3972         PCOR(pcop)->r = r = pic16_allocRegByName(name, 1, NULL);
3973         PCOR(pcop)->rIdx = PCOR(pcop)->r->rIdx;
3974         pcop->type = PCOR(pcop)->r->pc_type;
3975         pcop->name = PCOR(pcop)->r->name;
3976
3977 //      if(pic16_pcode_verbose) {
3978 //              fprintf(stderr, "%s:%d %s allocates register %s rIdx:0x%02x\n",
3979 //                      __FILE__, __LINE__, __FUNCTION__, r->name, r->rIdx);
3980 //      }
3981
3982   return pcop;
3983 }
3984
3985 /*-----------------------------------------------------------------*/
3986 /*-----------------------------------------------------------------*/
3987
3988 pCodeOp *pic16_newpCodeOp(char *name, PIC_OPTYPE type)
3989 {
3990   pCodeOp *pcop;
3991
3992   switch(type) {
3993   case PO_BIT:
3994   case PO_GPR_BIT:
3995     pcop = pic16_newpCodeOpBit(name, -1,0);
3996     break;
3997
3998   case PO_LITERAL:
3999     pcop = pic16_newpCodeOpLit(-1);
4000     break;
4001
4002   case PO_LABEL:
4003     pcop = pic16_newpCodeOpLabel(NULL,-1);
4004     break;
4005   case PO_GPR_TEMP:
4006     pcop = pic16_newpCodeOpReg(-1);
4007     break;
4008
4009   case PO_GPR_REGISTER:
4010     if(name)
4011       pcop = pic16_newpCodeOpRegFromStr(name);
4012     else
4013       pcop = pic16_newpCodeOpReg(-1);
4014     break;
4015
4016   default:
4017     pcop = Safe_calloc(1,sizeof(pCodeOp) );
4018     pcop->type = type;
4019     if(name)
4020       pcop->name = Safe_strdup(name);
4021     else
4022       pcop->name = NULL;
4023   }
4024
4025   return pcop;
4026 }
4027
4028
4029 typedef struct DBdata
4030   {
4031     int count;
4032     char buffer[256];
4033   } DBdata;
4034
4035 struct DBdata DBd;
4036 static int DBd_init = -1;
4037 static int DB_prev = -1;
4038
4039 /*-----------------------------------------------------------------*/
4040 /*    Add "DB" directives to a pBlock                              */
4041 /*-----------------------------------------------------------------*/
4042 void pic16_emitDB(pBlock *pb, char c)
4043 {
4044   int l;
4045   char *frm, tbuf[8];
4046   char frm_alnum[]="%c";
4047   char frm_other[]="0x%02x";
4048
4049
4050         if (DBd_init<0) {
4051          // we need to initialize
4052                 DBd_init = 0;
4053                 DBd.count = 0;
4054                 DBd.buffer[0] = '\0';
4055         }
4056
4057         l = strlen(DBd.buffer);
4058
4059         if(isprint( c ))frm = frm_alnum;
4060         else frm = frm_other;
4061         sprintf(tbuf, frm, c & 0xff);
4062
4063         if(!isprint(DB_prev)) {
4064                 if(isprint(c))
4065                         if(DBd.count)strcat(DBd.buffer, ", \"");
4066                         else strcat(DBd.buffer, "\"");
4067                 else if(DBd.count) strcat(DBd.buffer, ", ");
4068         } else
4069                 if(!isprint(c))strcat(DBd.buffer, "\", ");
4070
4071         strcat(DBd.buffer, tbuf);
4072
4073 #if 0
4074         if (DBd.count>0) {
4075                 sprintf(DBd.buffer+l,", 0x%02x", c & 0xff);
4076         } else {
4077                 sprintf(DBd.buffer,"0x%02x", c & 0xff);
4078         }
4079 #endif
4080
4081         DBd.count++;
4082         DB_prev = c;
4083
4084         if (DBd.count>=16) {
4085                 if(isprint(c))strcat(DBd.buffer, "\"");
4086                 pic16_addpCode2pBlock(pb,pic16_newpCodeAsmDir("DB", "%s", DBd.buffer));
4087                 DBd.count = 0;
4088                 DBd.buffer[0] = '\0';
4089                 DB_prev = 0;
4090         }
4091 }
4092
4093 /*-----------------------------------------------------------------*/
4094 /*    Flush pending "DB" data to a pBlock                          */
4095 /*-----------------------------------------------------------------*/
4096 void pic16_flushDB(pBlock *pb)
4097 {
4098   if (DBd.count>0)
4099     {
4100        if(isprint(DB_prev))strcat(DBd.buffer, "\"");
4101        pic16_addpCode2pBlock(pb,pic16_newpCodeAsmDir("DB", "%s", DBd.buffer));
4102        DBd.count = 0;
4103        DBd.buffer[0] = '\0';
4104     }
4105 }
4106
4107 /*-----------------------------------------------------------------*/
4108 /*-----------------------------------------------------------------*/
4109 void pic16_pCodeConstString(char *name, char *value)
4110 {
4111   pBlock *pb;
4112
4113   //  fprintf(stderr, " %s  %s  %s\n",__FUNCTION__,name,value);
4114
4115   if(!name || !value)
4116     return;
4117
4118   pb = pic16_newpCodeChain(NULL, 'P',pic16_newpCodeCharP("; Starting pCode block"));
4119
4120   pic16_addpBlock(pb);
4121
4122   sprintf(buffer,"; %s = %s",name,value);
4123
4124   pic16_addpCode2pBlock(pb,pic16_newpCodeCharP(buffer));
4125   pic16_addpCode2pBlock(pb,pic16_newpCodeLabel(name,-1));
4126
4127   do {
4128         pic16_emitDB(pb, *value);
4129   }while (*value++);
4130   pic16_flushDB(pb);
4131 }
4132
4133 /*-----------------------------------------------------------------*/
4134 /*-----------------------------------------------------------------*/
4135 #if 0
4136 static void pCodeReadCodeTable(void)
4137 {
4138   pBlock *pb;
4139
4140   fprintf(stderr, " %s\n",__FUNCTION__);
4141
4142   pb = pic16_newpCodeChain(NULL, 'P',pic16_newpCodeCharP("; Starting pCode block"));
4143
4144   pic16_addpBlock(pb);
4145
4146   pic16_addpCode2pBlock(pb,pic16_newpCodeCharP("; ReadCodeTable - built in function"));
4147   pic16_addpCode2pBlock(pb,pic16_newpCodeCharP("; Inputs: temp1,temp2 = code pointer"));
4148   pic16_addpCode2pBlock(pb,pic16_newpCodeCharP("; Outpus: W (from RETLW at temp2:temp1)"));
4149   pic16_addpCode2pBlock(pb,pic16_newpCodeLabel("ReadCodeTable:",-1));
4150
4151   pic16_addpCode2pBlock(pb,pic16_newpCode(POC_MOVFW,pic16_newpCodeOpRegFromStr("temp2")));
4152   pic16_addpCode2pBlock(pb,pic16_newpCode(POC_MOVWF,pic16_newpCodeOpRegFromStr("PCLATH")));
4153   pic16_addpCode2pBlock(pb,pic16_newpCode(POC_MOVFW,pic16_newpCodeOpRegFromStr("temp1")));
4154   pic16_addpCode2pBlock(pb,pic16_newpCode(POC_MOVWF,pic16_newpCodeOpRegFromStr("PCL")));
4155
4156
4157 }
4158 #endif
4159 /*-----------------------------------------------------------------*/
4160 /* pic16_addpCode2pBlock - place the pCode into the pBlock linked list   */
4161 /*-----------------------------------------------------------------*/
4162 void pic16_addpCode2pBlock(pBlock *pb, pCode *pc)
4163 {
4164
4165   if(!pc)
4166     return;
4167
4168   if(!pb->pcHead) {
4169     /* If this is the first pcode to be added to a block that
4170      * was initialized with a NULL pcode, then go ahead and
4171      * make this pcode the head and tail */
4172     pb->pcHead  = pb->pcTail = pc;
4173   } else {
4174     //    if(pb->pcTail)
4175     pb->pcTail->next = pc;
4176
4177     pc->prev = pb->pcTail;
4178     pc->pb = pb;
4179
4180     pb->pcTail = pc;
4181   }
4182 }
4183
4184 /*-----------------------------------------------------------------*/
4185 /* pic16_addpBlock - place a pBlock into the pFile                 */
4186 /*-----------------------------------------------------------------*/
4187 void pic16_addpBlock(pBlock *pb)
4188 {
4189   // fprintf(stderr," Adding pBlock: dbName =%c\n",getpBlock_dbName(pb));
4190
4191   if(!the_pFile) {
4192     /* First time called, we'll pass through here. */
4193     //_ALLOC(the_pFile,sizeof(pFile));
4194     the_pFile = Safe_calloc(1,sizeof(pFile));
4195     the_pFile->pbHead = the_pFile->pbTail = pb;
4196     the_pFile->functions = NULL;
4197     return;
4198   }
4199
4200   the_pFile->pbTail->next = pb;
4201   pb->prev = the_pFile->pbTail;
4202   pb->next = NULL;
4203   the_pFile->pbTail = pb;
4204 }
4205
4206 /*-----------------------------------------------------------------*/
4207 /* removepBlock - remove a pBlock from the pFile                   */
4208 /*-----------------------------------------------------------------*/
4209 static void removepBlock(pBlock *pb)
4210 {
4211   pBlock *pbs;
4212
4213   if(!the_pFile)
4214     return;
4215
4216
4217   //fprintf(stderr," Removing pBlock: dbName =%c\n",getpBlock_dbName(pb));
4218
4219   for(pbs = the_pFile->pbHead; pbs; pbs = pbs->next) {
4220     if(pbs == pb) {
4221
4222       if(pbs == the_pFile->pbHead)
4223         the_pFile->pbHead = pbs->next;
4224
4225       if (pbs == the_pFile->pbTail)
4226         the_pFile->pbTail = pbs->prev;
4227
4228       if(pbs->next)
4229         pbs->next->prev = pbs->prev;
4230
4231       if(pbs->prev)
4232         pbs->prev->next = pbs->next;
4233
4234       return;
4235
4236     }
4237   }
4238
4239   fprintf(stderr, "Warning: call to %s:%s didn't find pBlock\n",__FILE__,__FUNCTION__);
4240
4241 }
4242
4243 /*-----------------------------------------------------------------*/
4244 /* printpCode - write the contents of a pCode to a file            */
4245 /*-----------------------------------------------------------------*/
4246 static void printpCode(FILE *of, pCode *pc)
4247 {
4248
4249   if(!pc || !of)
4250     return;
4251
4252   if(pc->print) {
4253     pc->print(of,pc);
4254     return;
4255   }
4256
4257   fprintf(of,"warning - unable to print pCode\n");
4258 }
4259
4260 /*-----------------------------------------------------------------*/
4261 /* pic16_printpBlock - write the contents of a pBlock to a file    */
4262 /*-----------------------------------------------------------------*/
4263 void pic16_printpBlock(FILE *of, pBlock *pb)
4264 {
4265   pCode *pc;
4266
4267         if(!pb)return;
4268
4269         if(!of)of=stderr;
4270
4271         for(pc = pb->pcHead; pc; pc = pc->next) {
4272                 if(isPCF(pc) && PCF(pc)->fname) {
4273                         fprintf(of, "S_%s_%s\tcode", PCF(pc)->modname, PCF(pc)->fname);
4274                         if(pb->dbName == 'A') {
4275                           absSym *ab;
4276                                 for(ab=setFirstItem(absSymSet); ab; ab=setNextItem(absSymSet)) {
4277                                         if(!strcmp(ab->name, PCF(pc)->fname)) {
4278                                                 fprintf(of, "\t0X%06X", ab->address);
4279                                                 break;
4280                                         }
4281                                 }
4282                         }
4283                         fprintf(of, "\n");
4284                 }
4285                 printpCode(of,pc);
4286         }
4287 }
4288
4289 /*-----------------------------------------------------------------*/
4290 /*                                                                 */
4291 /*       pCode processing                                          */
4292 /*                                                                 */
4293 /*                                                                 */
4294 /*                                                                 */
4295 /*-----------------------------------------------------------------*/
4296
4297 void pic16_unlinkpCode(pCode *pc)
4298 {
4299
4300
4301   if(pc) {
4302 #ifdef PCODE_DEBUG
4303     fprintf(stderr,"Unlinking: ");
4304     printpCode(stderr, pc);
4305 #endif
4306     if(pc->prev)
4307       pc->prev->next = pc->next;
4308     if(pc->next)
4309       pc->next->prev = pc->prev;
4310
4311     pc->prev = pc->next = NULL;
4312   }
4313 }
4314
4315 /*-----------------------------------------------------------------*/
4316 /*-----------------------------------------------------------------*/
4317
4318 static void genericDestruct(pCode *pc)
4319 {
4320
4321   pic16_unlinkpCode(pc);
4322
4323   if(isPCI(pc)) {
4324     /* For instructions, tell the register (if there's one used)
4325      * that it's no longer needed */
4326     regs *reg = pic16_getRegFromInstruction(pc);
4327     if(reg)
4328       deleteSetItem (&(reg->reglives.usedpCodes),pc);
4329
4330         if(PCI(pc)->is2MemOp) {
4331                 reg = pic16_getRegFromInstruction2(pc);
4332                 if(reg)
4333                         deleteSetItem(&(reg->reglives.usedpCodes), pc);
4334         }
4335   }
4336
4337   /* Instead of deleting the memory used by this pCode, mark
4338    * the object as bad so that if there's a pointer to this pCode
4339    * dangling around somewhere then (hopefully) when the type is
4340    * checked we'll catch it.
4341    */
4342
4343   pc->type = PC_BAD;
4344
4345   pic16_addpCode2pBlock(pb_dead_pcodes, pc);
4346
4347   //free(pc);
4348
4349 }
4350
4351
4352
4353 /*-----------------------------------------------------------------*/
4354 /*-----------------------------------------------------------------*/
4355 /* modifiers for constant immediate */
4356 const char *immdmod[3]={"LOW", "HIGH", "UPPER"};
4357
4358 char *pic16_get_op(pCodeOp *pcop,char *buffer, size_t size)
4359 {
4360   regs *r;
4361   static char b[50];
4362   char *s;
4363   int use_buffer = 1;    // copy the string to the passed buffer pointer
4364
4365         if(!buffer) {
4366                 buffer = b;
4367                 size = sizeof(b);
4368                 use_buffer = 0;     // Don't bother copying the string to the buffer.
4369         }
4370
4371         if(pcop) {
4372                 switch(pcop->type) {
4373                         case PO_PRODL:
4374                         case PO_PRODH:
4375                         case PO_INDF0:
4376                         case PO_FSR0:
4377                                 if(use_buffer) {
4378                                         SAFE_snprintf(&buffer,&size,"%s",PCOR(pcop)->r->name);
4379                                         return buffer;
4380                                 }
4381                                 return PCOR(pcop)->r->name;
4382                                 break;
4383                         case PO_GPR_TEMP:
4384                                 r = pic16_regWithIdx(PCOR(pcop)->r->rIdx);
4385                                 if(use_buffer) {
4386                                         SAFE_snprintf(&buffer,&size,"%s",r->name);
4387                                         return buffer;
4388                                 }
4389                                 return r->name;
4390
4391                         case PO_IMMEDIATE:
4392                                 s = buffer;
4393                                 if(PCOI(pcop)->offset && PCOI(pcop)->offset<4) {
4394                                         if(PCOI(pcop)->index) {
4395                                                 SAFE_snprintf(&s,&size, "%s(%s + %d)",
4396                                                         immdmod[ PCOI(pcop)->offset ],
4397                                                         pcop->name,
4398                                                         PCOI(pcop)->index);
4399                                         } else {
4400                                                 SAFE_snprintf(&s,&size,"%s(%s)",
4401                                                         immdmod[ PCOI(pcop)->offset ],
4402                                                         pcop->name);
4403                                         }
4404                                 } else {
4405                                         if(PCOI(pcop)->index) {
4406                                                 SAFE_snprintf(&s,&size, "%s(%s + %d)",
4407                                                         immdmod[ 0 ],
4408                                                         pcop->name,
4409                                                         PCOI(pcop)->index);
4410                                         } else {
4411                                                 SAFE_snprintf(&s,&size, "%s(%s)",
4412                                                         immdmod[ 0 ],
4413                                                         pcop->name);
4414                                         }
4415                                 }
4416                                 return buffer;
4417
4418                         case PO_DIR:
4419                                 s = buffer;
4420 //                              size = sizeof(buffer);
4421                                 if( PCOR(pcop)->instance) {
4422                                         SAFE_snprintf(&s,&size,"(%s + %d)",
4423                                                 pcop->name,
4424                                                 PCOR(pcop)->instance );
4425                                 } else {
4426                                         SAFE_snprintf(&s,&size,"%s",pcop->name);
4427                                 }
4428                                 return buffer;
4429
4430                         default:
4431                                 if(pcop->name) {
4432                                         if(use_buffer) {
4433                                                 SAFE_snprintf(&buffer,&size,"%s",pcop->name);
4434                                                 return buffer;
4435                                         }
4436                                 return pcop->name;
4437                                 }
4438
4439                 }
4440         }
4441
4442   return "NO operand1";
4443 }
4444
4445 /*-----------------------------------------------------------------*/
4446 /* pic16_get_op2 - variant to support two memory operand commands  */
4447 /*-----------------------------------------------------------------*/
4448 char *pic16_get_op2(pCodeOp *pcop,char *buffer, size_t size)
4449 {
4450   regs *r;
4451   static char b[50];
4452   char *s;
4453   int use_buffer = 1;    // copy the string to the passed buffer pointer
4454
4455         if(!buffer) {
4456                 buffer = b;
4457                 size = sizeof(b);
4458                 use_buffer = 0;     // Don't bother copying the string to the buffer.
4459         }
4460
4461 #if 0
4462         fprintf(stderr, "%s:%d second operand %s is %d\tPO_DIR(%d) PO_GPR_TEMP(%d) PO_IMMEDIATE(%d) PO_INDF0(%d) PO_FSR0(%d)\n",
4463                 __FUNCTION__, __LINE__, PCOR(PCOR2(pcop)->pcop2)->r->name, PCOR2(pcop)->pcop2->type,
4464                 PO_DIR, PO_GPR_TEMP, PO_IMMEDIATE, PO_INDF0, PO_FSR0);
4465 #endif
4466
4467         if(pcop) {
4468                 switch(PCOR2(pcop)->pcop2->type) {
4469                         case PO_PRODL:
4470                         case PO_PRODH:
4471                         case PO_INDF0:
4472                         case PO_FSR0:
4473                                 if(use_buffer) {
4474                                         SAFE_snprintf(&buffer,&size,"%s",PCOR(PCOR2(pcop)->pcop2)->r->name);
4475                                         return buffer;
4476                                 }
4477                                 return PCOR(PCOR2(pcop)->pcop2)->r->name;
4478                                 break;
4479                         case PO_GPR_TEMP:
4480                                 r = pic16_regWithIdx(PCOR(PCOR2(pcop)->pcop2)->r->rIdx);
4481
4482                                 if(use_buffer) {
4483                                         SAFE_snprintf(&buffer,&size,"%s",r->name);
4484                                         return buffer;
4485                                 }
4486                                 return r->name;
4487
4488                         case PO_IMMEDIATE:
4489                                         assert( 0 );
4490                                 break;
4491 #if 0
4492                                 s = buffer;
4493
4494                                 if(PCOI(pcop)->_const) {
4495                                         if( PCOI(pcop)->offset && PCOI(pcop)->offset<4) {
4496                                                 SAFE_snprintf(&s,&size,"(((%s+%d) >> %d)&0xff)",
4497                                                         pcop->name,
4498                                                         PCOI(pcop)->index,
4499                                                         8 * PCOI(pcop)->offset );
4500                                         } else
4501                                                 SAFE_snprintf(&s,&size,"LOW(%s+%d)",pcop->name,PCOI(pcop)->index);
4502                                 } else {
4503                                         if( PCOI(pcop)->index) {
4504                                                 SAFE_snprintf(&s,&size,"(%s + %d)",
4505                                                         pcop->name,
4506                                                         PCOI(pcop)->index );
4507                                         } else {
4508                                                 if(PCOI(pcop)->offset)
4509                                                         SAFE_snprintf(&s,&size,"(%s >> %d)&0xff",pcop->name, 8*PCOI(pcop)->offset);
4510                                                 else
4511                                                         SAFE_snprintf(&s,&size,"%s",pcop->name);
4512                                         }
4513                                 }
4514                                 return buffer;
4515 #endif
4516                         case PO_DIR:
4517                                 s = buffer;
4518                                 if( PCOR(PCOR2(pcop)->pcop2)->instance) {
4519                                         SAFE_snprintf(&s,&size,"(%s + %d)",
4520                                                 PCOR(PCOR2(pcop)->pcop2)->r->name,
4521                                                 PCOR(PCOR2(pcop)->pcop2)->instance );
4522                                 } else {
4523                                         SAFE_snprintf(&s,&size,"%s",PCOR(PCOR2(pcop)->pcop2)->r->name);
4524                                 }
4525                                 return buffer;
4526
4527                         default:
4528                                 if(PCOR(PCOR2(pcop)->pcop2)->r->name) {
4529                                         if(use_buffer) {
4530                                                 SAFE_snprintf(&buffer,&size,"%s",PCOR(PCOR2(pcop)->pcop2)->r->name);
4531                                                 return buffer;
4532                                         }
4533                                         return PCOR(PCOR2(pcop)->pcop2)->r->name;
4534                                 }
4535                 }
4536         }
4537
4538   return "NO operand2";
4539 }
4540
4541 /*-----------------------------------------------------------------*/
4542 /*-----------------------------------------------------------------*/
4543 static char *pic16_get_op_from_instruction( pCodeInstruction *pcc)
4544 {
4545
4546   if(pcc )
4547     return pic16_get_op(pcc->pcop,NULL,0);
4548
4549   /* gcc 3.2:  warning: concatenation of string literals with __FUNCTION__ is deprecated
4550    *   return ("ERROR Null: "__FUNCTION__);
4551    */
4552   return ("ERROR Null: pic16_get_op_from_instruction");
4553
4554 }
4555
4556 /*-----------------------------------------------------------------*/
4557 /*-----------------------------------------------------------------*/
4558 static void pCodeOpPrint(FILE *of, pCodeOp *pcop)
4559 {
4560
4561   fprintf(of,"pcodeopprint- not implemented\n");
4562 }
4563
4564 /*-----------------------------------------------------------------*/
4565 /* pic16_pCode2str - convert a pCode instruction to string               */
4566 /*-----------------------------------------------------------------*/
4567 char *pic16_pCode2str(char *str, size_t size, pCode *pc)
4568 {
4569   char *s = str;
4570   regs *r;
4571
4572 #if 0
4573         if(isPCI(pc) && (PCI(pc)->pci_magic != PCI_MAGIC)) {
4574                 fprintf(stderr, "%s:%d: pCodeInstruction initialization error in instruction %s, magic is %x (defaut: %x)\n",
4575                         __FILE__, __LINE__, PCI(pc)->mnemonic, PCI(pc)->pci_magic, PCI_MAGIC);
4576                 exit(-1);
4577         }
4578 #endif
4579
4580   switch(pc->type) {
4581
4582   case PC_OPCODE:
4583     SAFE_snprintf(&s,&size, "\t%s\t", PCI(pc)->mnemonic);
4584
4585     if( (PCI(pc)->num_ops >= 1) && (PCI(pc)->pcop)) {
4586
4587         if(PCI(pc)->is2MemOp) {
4588                 SAFE_snprintf(&s,&size, "%s, %s",
4589                 pic16_get_op(PCOP(PCI(pc)->pcop), NULL, 0),
4590                 pic16_get_op2(PCOP(PCI(pc)->pcop), NULL, 0));
4591                 break;
4592         }
4593
4594         if(PCI(pc)->is2LitOp) {
4595                 SAFE_snprintf(&s,&size, "%s", PCOP(PCI(pc)->pcop)->name);
4596                 break;
4597         }
4598
4599       if(PCI(pc)->isBitInst) {
4600         if(PCI(pc)->pcop->type == PO_GPR_BIT) {
4601           if( (((pCodeOpRegBit *)(PCI(pc)->pcop))->inBitSpace) )
4602             SAFE_snprintf(&s,&size,"(%s >> 3), (%s & 7)",
4603                           PCI(pc)->pcop->name ,
4604                           PCI(pc)->pcop->name );
4605           else
4606             SAFE_snprintf(&s,&size,"%s,%d", pic16_get_op_from_instruction(PCI(pc)),
4607                           (((pCodeOpRegBit *)(PCI(pc)->pcop))->bit ));
4608         } else if(PCI(pc)->pcop->type == PO_GPR_BIT) {
4609           SAFE_snprintf(&s,&size,"%s,%d", pic16_get_op_from_instruction(PCI(pc)),PCORB(PCI(pc)->pcop)->bit);
4610         }else
4611           SAFE_snprintf(&s,&size,"%s,0 ; ?bug", pic16_get_op_from_instruction(PCI(pc)));
4612         //PCI(pc)->pcop->t.bit );
4613       } else {
4614
4615         if(PCI(pc)->pcop->type == PO_GPR_BIT) {
4616           if( PCI(pc)->num_ops == 3)
4617             SAFE_snprintf(&s,&size,"(%s >> 3),%c",pic16_get_op_from_instruction(PCI(pc)),((PCI(pc)->isModReg) ? 'F':'W'));
4618           else
4619             SAFE_snprintf(&s,&size,"(1 << (%s & 7))",pic16_get_op_from_instruction(PCI(pc)));
4620
4621         }else {
4622           SAFE_snprintf(&s,&size,"%s", pic16_get_op_from_instruction(PCI(pc)));
4623
4624                 if( PCI(pc)->num_ops == 3 || ((PCI(pc)->num_ops == 2) && (PCI(pc)->isAccess))) {
4625                         if(PCI(pc)->num_ops == 3)
4626                                 SAFE_snprintf(&s,&size,", %c", ( (PCI(pc)->isModReg) ? 'F':'W'));
4627
4628                         r = pic16_getRegFromInstruction(pc);
4629 //                      fprintf(stderr, "%s:%d reg = %p\tname= %s, accessBank= %d\n",
4630 //                                      __FUNCTION__, __LINE__, r, (r)?r->name:"<null>", (r)?r->accessBank:-1);
4631
4632                         if(r && !r->accessBank)SAFE_snprintf(&s,&size,", %s", "B");
4633           }
4634         }
4635       }
4636
4637     }
4638     break;
4639
4640   case PC_COMMENT:
4641     /* assuming that comment ends with a \n */
4642     SAFE_snprintf(&s,&size,";%s", ((pCodeComment *)pc)->comment);
4643     break;
4644
4645   case PC_INLINE:
4646     /* assuming that inline code ends with a \n */
4647     SAFE_snprintf(&s,&size,"%s", ((pCodeComment *)pc)->comment);
4648     break;
4649
4650   case PC_LABEL:
4651     SAFE_snprintf(&s,&size,";label=%s, key=%d\n",PCL(pc)->label,PCL(pc)->key);
4652     break;
4653   case PC_FUNCTION:
4654     SAFE_snprintf(&s,&size,";modname=%s,function=%s: id=%d\n",PCF(pc)->modname,PCF(pc)->fname);
4655     break;
4656   case PC_WILD:
4657     SAFE_snprintf(&s,&size,";\tWild opcode: id=%d\n",PCW(pc)->id);
4658     break;
4659   case PC_FLOW:
4660     SAFE_snprintf(&s,&size,";\t--FLOW change\n");
4661     break;
4662   case PC_CSOURCE:
4663 //    SAFE_snprintf(&s,&size,";#CSRC\t%s %d\t%s\n", PCCS(pc)->file_name, PCCS(pc)->line_number, PCCS(pc)->line);
4664       SAFE_snprintf(&s,&size,"#LINE\t%d; %s\t%s\n", PCCS(pc)->line_number, PCCS(pc)->file_name, PCCS(pc)->line);
4665     break;
4666   case PC_ASMDIR:
4667         if(PCAD(pc)->directive) {
4668                 SAFE_snprintf(&s,&size,"\t%s%s%s\n", PCAD(pc)->directive, PCAD(pc)->arg?"\t":"", PCAD(pc)->arg?PCAD(pc)->arg:"");
4669         } else
4670         if(PCAD(pc)->arg) {
4671                 /* special case to handle inline labels without a tab */
4672                 SAFE_snprintf(&s,&size,"%s\n", PCAD(pc)->arg);
4673         }
4674         break;
4675
4676   case PC_BAD:
4677     SAFE_snprintf(&s,&size,";A bad pCode is being used\n");
4678   }
4679
4680   return str;
4681
4682 }
4683
4684 /*-----------------------------------------------------------------*/
4685 /* genericPrint - the contents of a pCode to a file                */
4686 /*-----------------------------------------------------------------*/
4687 static void genericPrint(FILE *of, pCode *pc)
4688 {
4689
4690   if(!pc || !of)
4691     return;
4692
4693   switch(pc->type) {
4694   case PC_COMMENT:
4695     fprintf(of,";%s\n", ((pCodeComment *)pc)->comment);
4696     break;
4697
4698   case PC_INLINE:
4699     fprintf(of,"%s\n", ((pCodeComment *)pc)->comment);
4700      break;
4701
4702   case PC_OPCODE:
4703     // If the opcode has a label, print that first
4704     {
4705       pBranch *pbl = PCI(pc)->label;
4706       while(pbl && pbl->pc) {
4707         if(pbl->pc->type == PC_LABEL)
4708           pCodePrintLabel(of, pbl->pc);
4709         pbl = pbl->next;
4710       }
4711     }
4712
4713     if(PCI(pc)->cline)
4714       genericPrint(of,PCODE(PCI(pc)->cline));
4715
4716     {
4717       char str[256];
4718
4719       pic16_pCode2str(str, 256, pc);
4720
4721       fprintf(of,"%s",str);
4722       /* Debug */
4723       if(pic16_debug_verbose) {
4724         fprintf(of, "\t;key=%03x",pc->seq);
4725         if(PCI(pc)->pcflow)
4726           fprintf(of,", flow seq=%03x",PCI(pc)->pcflow->pc.seq);
4727       }
4728     }
4729     fprintf(of, "\n");
4730     break;
4731
4732   case PC_WILD:
4733     fprintf(of,";\tWild opcode: id=%d\n",PCW(pc)->id);
4734     if(PCW(pc)->pci.label)
4735       pCodePrintLabel(of, PCW(pc)->pci.label->pc);
4736
4737     if(PCW(pc)->operand) {
4738       fprintf(of,";\toperand  ");
4739       pCodeOpPrint(of,PCW(pc)->operand );
4740     }
4741     break;
4742
4743   case PC_FLOW:
4744     if(pic16_debug_verbose) {
4745       fprintf(of,";<>Start of new flow, seq=0x%x",pc->seq);
4746       if(PCFL(pc)->ancestor)
4747         fprintf(of," ancestor = 0x%x", PCODE(PCFL(pc)->ancestor)->seq);
4748       fprintf(of,"\n");
4749
4750     }
4751     break;
4752
4753   case PC_CSOURCE:
4754 //    fprintf(of,";#CSRC\t%s %d\t\t%s\n", PCCS(pc)->file_name, PCCS(pc)->line_number, PCCS(pc)->line);
4755     fprintf(of,"#LINE\t%d; %s\t%s\n", PCCS(pc)->line_number, PCCS(pc)->file_name, PCCS(pc)->line);
4756
4757     break;
4758
4759   case PC_ASMDIR:
4760         {
4761           pBranch *pbl = PCAD(pc)->pci.label;
4762                 while(pbl && pbl->pc) {
4763                         if(pbl->pc->type == PC_LABEL)
4764                                 pCodePrintLabel(of, pbl->pc);
4765                         pbl = pbl->next;
4766                 }
4767         }
4768         if(PCAD(pc)->directive) {
4769                 fprintf(of, "\t%s%s%s\n", PCAD(pc)->directive, PCAD(pc)->arg?"\t":"", PCAD(pc)->arg?PCAD(pc)->arg:"");
4770         } else
4771         if(PCAD(pc)->arg) {
4772                 /* special case to handle inline labels without tab */
4773                 fprintf(of, "%s\n", PCAD(pc)->arg);
4774         }
4775         break;
4776
4777   case PC_LABEL:
4778   default:
4779     fprintf(of,"unknown pCode type %d\n",pc->type);
4780   }
4781
4782 }
4783
4784 /*-----------------------------------------------------------------*/
4785 /* pCodePrintFunction - prints function begin/end                  */
4786 /*-----------------------------------------------------------------*/
4787
4788 static void pCodePrintFunction(FILE *of, pCode *pc)
4789 {
4790
4791   if(!pc || !of)
4792     return;
4793
4794 #if 0
4795   if( ((pCodeFunction *)pc)->modname)
4796     fprintf(of,"F_%s",((pCodeFunction *)pc)->modname);
4797 #endif
4798
4799   if(!PCF(pc)->absblock) {
4800       if(PCF(pc)->fname) {
4801       pBranch *exits = PCF(pc)->to;
4802       int i=0;
4803
4804       fprintf(of,"%s:", PCF(pc)->fname);
4805
4806       if(pic16_pcode_verbose)
4807         fprintf(of, "\t;Function start");
4808
4809       fprintf(of, "\n");
4810
4811       while(exits) {
4812         i++;
4813         exits = exits->next;
4814       }
4815       //if(i) i--;
4816
4817       if(pic16_pcode_verbose)
4818         fprintf(of,"; %d exit point%c\n",i, ((i==1) ? ' ':'s'));
4819
4820     } else {
4821         if((PCF(pc)->from &&
4822                 PCF(pc)->from->pc->type == PC_FUNCTION &&
4823                 PCF(PCF(pc)->from->pc)->fname) ) {
4824
4825                 if(pic16_pcode_verbose)
4826                         fprintf(of,"; exit point of %s\n",PCF(PCF(pc)->from->pc)->fname);
4827         } else {
4828                 if(pic16_pcode_verbose)
4829                         fprintf(of,"; exit point [can't find entry point]\n");
4830         }
4831         fprintf(of, "\n");
4832     }
4833   }
4834 }
4835 /*-----------------------------------------------------------------*/
4836 /* pCodePrintLabel - prints label                                  */
4837 /*-----------------------------------------------------------------*/
4838
4839 static void pCodePrintLabel(FILE *of, pCode *pc)
4840 {
4841
4842   if(!pc || !of)
4843     return;
4844
4845   if(PCL(pc)->label)
4846     fprintf(of,"%s:\n",PCL(pc)->label);
4847   else if (PCL(pc)->key >=0)
4848     fprintf(of,"_%05d_DS_:\n",PCL(pc)->key);
4849   else
4850     fprintf(of,";wild card label: id=%d\n",-PCL(pc)->key);
4851
4852 }
4853 /*-----------------------------------------------------------------*/
4854 /* unlinkpCodeFromBranch - Search for a label in a pBranch and     */
4855 /*                         remove it if it is found.               */
4856 /*-----------------------------------------------------------------*/
4857 static void unlinkpCodeFromBranch(pCode *pcl , pCode *pc)
4858 {
4859   pBranch *b, *bprev;
4860
4861
4862   bprev = NULL;
4863
4864   if(pcl->type == PC_OPCODE)
4865     b = PCI(pcl)->label;
4866   else {
4867     fprintf(stderr, "LINE %d. can't unlink from non opcode\n",__LINE__);
4868     exit(1);
4869
4870   }
4871
4872   //fprintf (stderr, "%s \n",__FUNCTION__);
4873   //pcl->print(stderr,pcl);
4874   //pc->print(stderr,pc);
4875   while(b) {
4876     if(b->pc == pc) {
4877       //fprintf (stderr, "found label\n");
4878       //pc->print(stderr, pc);
4879
4880       /* Found a label */
4881       if(bprev) {
4882         bprev->next = b->next;  /* Not first pCode in chain */
4883         free(b);
4884       } else {
4885         pc->destruct(pc);
4886         PCI(pcl)->label = b->next;   /* First pCode in chain */
4887         free(b);
4888       }
4889       return;  /* A label can't occur more than once */
4890     }
4891     bprev = b;
4892     b = b->next;
4893   }
4894
4895 }
4896
4897 /*-----------------------------------------------------------------*/
4898 /*-----------------------------------------------------------------*/
4899 pBranch * pic16_pBranchAppend(pBranch *h, pBranch *n)
4900 {
4901   pBranch *b;
4902
4903   if(!h)
4904     return n;
4905
4906   if(h == n)
4907     return n;
4908
4909   b = h;
4910   while(b->next)
4911     b = b->next;
4912
4913   b->next = n;
4914
4915   return h;
4916
4917 }
4918 /*-----------------------------------------------------------------*/
4919 /* pBranchLink - given two pcodes, this function will link them    */
4920 /*               together through their pBranches                  */
4921 /*-----------------------------------------------------------------*/
4922 static void pBranchLink(pCodeFunction *f, pCodeFunction *t)
4923 {
4924   pBranch *b;
4925
4926   // Declare a new branch object for the 'from' pCode.
4927
4928   //_ALLOC(b,sizeof(pBranch));
4929   b = Safe_calloc(1,sizeof(pBranch));
4930   b->pc = PCODE(t);             // The link to the 'to' pCode.
4931   b->next = NULL;
4932
4933   f->to = pic16_pBranchAppend(f->to,b);
4934
4935   // Now do the same for the 'to' pCode.
4936
4937   //_ALLOC(b,sizeof(pBranch));
4938   b = Safe_calloc(1,sizeof(pBranch));
4939   b->pc = PCODE(f);
4940   b->next = NULL;
4941
4942   t->from = pic16_pBranchAppend(t->from,b);
4943
4944 }
4945
4946 #if 0
4947 /*-----------------------------------------------------------------*/
4948 /* pBranchFind - find the pBranch in a pBranch chain that contains */
4949 /*               a pCode                                           */
4950 /*-----------------------------------------------------------------*/
4951 static pBranch *pBranchFind(pBranch *pb,pCode *pc)
4952 {
4953   while(pb) {
4954
4955     if(pb->pc == pc)
4956       return pb;
4957
4958     pb = pb->next;
4959   }
4960
4961   return NULL;
4962 }
4963
4964 /*-----------------------------------------------------------------*/
4965 /* pCodeUnlink - Unlink the given pCode from its pCode chain.      */
4966 /*-----------------------------------------------------------------*/
4967 static void pCodeUnlink(pCode *pc)
4968 {
4969   pBranch *pb1,*pb2;
4970   pCode *pc1;
4971
4972   if(!pc->prev || !pc->next) {
4973     fprintf(stderr,"unlinking bad pCode in %s:%d\n",__FILE__,__LINE__);
4974     exit(1);
4975   }
4976
4977   /* first remove the pCode from the chain */
4978   pc->prev->next = pc->next;
4979   pc->next->prev = pc->prev;
4980
4981   /* Now for the hard part... */
4982
4983   /* Remove the branches */
4984
4985   pb1 = pc->from;
4986   while(pb1) {
4987     pc1 = pb1->pc;    /* Get the pCode that branches to the
4988                        * one we're unlinking */
4989
4990     /* search for the link back to this pCode (the one we're
4991      * unlinking) */
4992     if(pb2 = pBranchFind(pc1->to,pc)) {
4993       pb2->pc = pc->to->pc;  // make the replacement
4994
4995       /* if the pCode we're unlinking contains multiple 'to'
4996        * branches (e.g. this a skip instruction) then we need
4997        * to copy these extra branches to the chain. */
4998       if(pc->to->next)
4999         pic16_pBranchAppend(pb2, pc->to->next);
5000     }
5001
5002     pb1 = pb1->next;
5003   }
5004
5005
5006 }
5007 #endif
5008 /*-----------------------------------------------------------------*/
5009 /*-----------------------------------------------------------------*/
5010 #if 0
5011 static void genericAnalyze(pCode *pc)
5012 {
5013   switch(pc->type) {
5014   case PC_WILD:
5015   case PC_COMMENT:
5016     return;
5017   case PC_LABEL:
5018   case PC_FUNCTION:
5019   case PC_OPCODE:
5020     {
5021       // Go through the pCodes that are in pCode chain and link
5022       // them together through the pBranches. Note, the pCodes
5023       // are linked together as a contiguous stream like the
5024       // assembly source code lines. The linking here mimics this
5025       // except that comments are not linked in.
5026       //
5027       pCode *npc = pc->next;
5028       while(npc) {
5029         if(npc->type == PC_OPCODE || npc->type == PC_LABEL) {
5030           pBranchLink(pc,npc);
5031           return;
5032         } else
5033           npc = npc->next;
5034       }
5035       /* reached the end of the pcode chain without finding
5036        * an instruction we could link to. */
5037     }
5038     break;
5039   case PC_FLOW:
5040     fprintf(stderr,"analyze PC_FLOW\n");
5041
5042     return;
5043   case PC_BAD:
5044     fprintf(stderr,,";A bad pCode is being used\n");
5045
5046   }
5047 }
5048 #endif
5049
5050 /*-----------------------------------------------------------------*/
5051 /*-----------------------------------------------------------------*/
5052 static int compareLabel(pCode *pc, pCodeOpLabel *pcop_label)
5053 {
5054   pBranch *pbr;
5055
5056   if(pc->type == PC_LABEL) {
5057     if( ((pCodeLabel *)pc)->key ==  pcop_label->key)
5058       return TRUE;
5059   }
5060   if((pc->type == PC_OPCODE)
5061         || (pc->type == PC_ASMDIR)
5062         ) {
5063     pbr = PCI(pc)->label;
5064     while(pbr) {
5065       if(pbr->pc->type == PC_LABEL) {
5066         if( ((pCodeLabel *)(pbr->pc))->key ==  pcop_label->key)
5067           return TRUE;
5068       }
5069       pbr = pbr->next;
5070     }
5071   }
5072
5073   return FALSE;
5074 }
5075
5076 /*-----------------------------------------------------------------*/
5077 /*-----------------------------------------------------------------*/
5078 static int checkLabel(pCode *pc)
5079 {
5080   pBranch *pbr;
5081
5082   if(pc && isPCI(pc)) {
5083     pbr = PCI(pc)->label;
5084     while(pbr) {
5085       if(isPCL(pbr->pc) && (PCL(pbr->pc)->key >= 0))
5086         return TRUE;
5087
5088       pbr = pbr->next;
5089     }
5090   }
5091
5092   return FALSE;
5093 }
5094
5095 /*-----------------------------------------------------------------*/
5096 /* findLabelinpBlock - Search the pCode for a particular label     */
5097 /*-----------------------------------------------------------------*/
5098 static pCode * findLabelinpBlock(pBlock *pb,pCodeOpLabel *pcop_label)
5099 {
5100   pCode  *pc;
5101
5102   if(!pb)
5103     return NULL;
5104
5105   for(pc = pb->pcHead; pc; pc = pc->next)
5106     if(compareLabel(pc,pcop_label))
5107       return pc;
5108
5109   return NULL;
5110 }
5111 #if 0
5112 /*-----------------------------------------------------------------*/
5113 /* findLabel - Search the pCode for a particular label             */
5114 /*-----------------------------------------------------------------*/
5115 static pCode * findLabel(pCodeOpLabel *pcop_label)
5116 {
5117   pBlock *pb;
5118   pCode  *pc;
5119
5120   if(!the_pFile)
5121     return NULL;
5122
5123   for(pb = the_pFile->pbHead; pb; pb = pb->next) {
5124     if( (pc = findLabelinpBlock(pb,pcop_label)) != NULL)
5125       return pc;
5126   }
5127
5128   fprintf(stderr,"Couldn't find label %s", pcop_label->pcop.name);
5129   return NULL;
5130 }
5131 #endif
5132 /*-----------------------------------------------------------------*/
5133 /* pic16_findNextpCode - given a pCode, find the next of type 'pct'      */
5134 /*                 in the linked list                              */
5135 /*-----------------------------------------------------------------*/
5136 pCode * pic16_findNextpCode(pCode *pc, PC_TYPE pct)
5137 {
5138
5139   while(pc) {
5140     if(pc->type == pct)
5141       return pc;
5142
5143     pc = pc->next;
5144   }
5145
5146   return NULL;
5147 }
5148
5149 /*-----------------------------------------------------------------*/
5150 /* findPrevpCode - given a pCode, find the previous of type 'pct'  */
5151 /*                 in the linked list                              */
5152 /*-----------------------------------------------------------------*/
5153 static pCode * findPrevpCode(pCode *pc, PC_TYPE pct)
5154 {
5155
5156   while(pc) {
5157     if(pc->type == pct)
5158       return pc;
5159
5160     pc = pc->prev;
5161   }
5162
5163   return NULL;
5164 }
5165
5166
5167 //#define PCODE_DEBUG
5168 /*-----------------------------------------------------------------*/
5169 /* pic16_findNextInstruction - given a pCode, find the next instruction  */
5170 /*                       in the linked list                        */
5171 /*-----------------------------------------------------------------*/
5172 pCode * pic16_findNextInstruction(pCode *pci)
5173 {
5174   pCode *pc = pci;
5175
5176   while(pc) {
5177     if((pc->type == PC_OPCODE)
5178         || (pc->type == PC_WILD)
5179         || (pc->type == PC_ASMDIR)
5180         )
5181       return pc;
5182
5183 #ifdef PCODE_DEBUG
5184     fprintf(stderr,"pic16_findNextInstruction:  ");
5185     printpCode(stderr, pc);
5186 #endif
5187     pc = pc->next;
5188   }
5189
5190   //fprintf(stderr,"Couldn't find instruction\n");
5191   return NULL;
5192 }
5193
5194 /*-----------------------------------------------------------------*/
5195 /* pic16_findNextInstruction - given a pCode, find the next instruction  */
5196 /*                       in the linked list                        */
5197 /*-----------------------------------------------------------------*/
5198 pCode * pic16_findPrevInstruction(pCode *pci)
5199 {
5200   pCode *pc = pci;
5201
5202   while(pc) {
5203     if((pc->type == PC_OPCODE)
5204         || (pc->type == PC_WILD)
5205         || (pc->type == PC_ASMDIR)
5206         )
5207       return pc;
5208
5209
5210 #ifdef PCODE_DEBUG
5211     fprintf(stderr,"pic16_findPrevInstruction:  ");
5212     printpCode(stderr, pc);
5213 #endif
5214     pc = pc->next;
5215   }
5216
5217   //fprintf(stderr,"Couldn't find instruction\n");
5218   return NULL;
5219 }
5220
5221 #undef PCODE_DEBUG
5222
5223 #if 0
5224 /*-----------------------------------------------------------------*/
5225 /* findFunctionEnd - given a pCode find the end of the function    */
5226 /*                   that contains it                              */
5227 /*-----------------------------------------------------------------*/
5228 static pCode * findFunctionEnd(pCode *pc)
5229 {
5230
5231   while(pc) {
5232     if(pc->type == PC_FUNCTION &&  !(PCF(pc)->fname))
5233       return pc;
5234
5235     pc = pc->next;
5236   }
5237
5238   fprintf(stderr,"Couldn't find function end\n");
5239   return NULL;
5240 }
5241 #endif
5242 #if 0
5243 /*-----------------------------------------------------------------*/
5244 /* AnalyzeLabel - if the pCode is a label, then merge it with the  */
5245 /*                instruction with which it is associated.         */
5246 /*-----------------------------------------------------------------*/
5247 static void AnalyzeLabel(pCode *pc)
5248 {
5249
5250   pCodeUnlink(pc);
5251
5252 }
5253 #endif
5254
5255 #if 0
5256 static void AnalyzeGOTO(pCode *pc)
5257 {
5258
5259   pBranchLink(pc,findLabel( (pCodeOpLabel *) (PCI(pc)->pcop) ));
5260
5261 }
5262
5263 static void AnalyzeSKIP(pCode *pc)
5264 {
5265
5266   pBranchLink(pc,pic16_findNextInstruction(pc->next));
5267   pBranchLink(pc,pic16_findNextInstruction(pc->next->next));
5268
5269 }
5270
5271 static void AnalyzeRETURN(pCode *pc)
5272 {
5273
5274   //  branch_link(pc,findFunctionEnd(pc->next));
5275
5276 }
5277
5278 #endif
5279
5280 /*-----------------------------------------------------------------*/
5281 /*-----------------------------------------------------------------*/
5282 regs * pic16_getRegFromInstruction(pCode *pc)
5283 {
5284
5285   if(!pc                   ||
5286      !isPCI(pc)            ||
5287      !PCI(pc)->pcop        ||
5288      PCI(pc)->num_ops == 0 ||
5289      (PCI(pc)->num_ops == 1 && PCI(pc)->isFastCall))
5290     return NULL;
5291
5292 #if 0
5293   fprintf(stderr, "pic16_getRegFromInstruction - reg type %s (%d)\n",
5294         dumpPicOptype( PCI(pc)->pcop->type), PCI(pc)->pcop->type);
5295 #endif
5296
5297   switch(PCI(pc)->pcop->type) {
5298   case PO_PRODL:
5299   case PO_PRODH:
5300
5301   case PO_INDF0:
5302   case PO_FSR0:
5303     return PCOR(PCI(pc)->pcop)->r;
5304
5305     //    return typeRegWithIdx (PCOR(PCI(pc)->pcop)->rIdx, REG_SFR, 0);
5306
5307   case PO_BIT:
5308   case PO_GPR_TEMP:
5309 //      fprintf(stderr, "pic16_getRegFromInstruction - bit or temp\n");
5310     return PCOR(PCI(pc)->pcop)->r;
5311
5312   case PO_IMMEDIATE:
5313     if(PCOI(PCI(pc)->pcop)->r)
5314       return (PCOI(PCI(pc)->pcop)->r);
5315
5316     //fprintf(stderr, "pic16_getRegFromInstruction - immediate\n");
5317     return pic16_dirregWithName(PCI(pc)->pcop->name);
5318     //return NULL; // PCOR(PCI(pc)->pcop)->r;
5319
5320   case PO_GPR_BIT:
5321     return PCOR(PCI(pc)->pcop)->r;
5322
5323   case PO_DIR:
5324 //      fprintf(stderr, "pic16_getRegFromInstruction - dir\n");
5325     return PCOR(PCI(pc)->pcop)->r;
5326   case PO_LITERAL:
5327     //fprintf(stderr, "pic16_getRegFromInstruction - literal\n");
5328     break;
5329
5330   default:
5331 //      fprintf(stderr, "pic16_getRegFromInstruction - unknown reg type %d\n",PCI(pc)->pcop->type);
5332 //      genericPrint(stderr, pc);
5333 //      assert( 0 );
5334     break;
5335   }
5336
5337   return NULL;
5338 }
5339
5340 /*-------------------------------------------------------------------------------*/
5341 /* pic16_getRegFromInstruction2 - variant to support two memory operand commands */
5342 /*-------------------------------------------------------------------------------*/
5343 regs * pic16_getRegFromInstruction2(pCode *pc)
5344 {
5345
5346   if(!pc                   ||
5347      !isPCI(pc)            ||
5348      !PCI(pc)->pcop        ||
5349      PCI(pc)->num_ops == 0 ||
5350      (PCI(pc)->num_ops == 1))           // accept only 2 operand commands
5351     return NULL;
5352
5353
5354 #if 0
5355   fprintf(stderr, "pic16_getRegFromInstruction2 - reg type %s (%d)\n",
5356         dumpPicOptype( PCI(pc)->pcop->type), PCI(pc)->pcop->type);
5357 #endif
5358
5359 /*
5360  * operands supported in MOVFF:
5361  *  PO_INF0/PO_FSR0
5362  *  PO_GPR_TEMP
5363  *  PO_IMMEDIATE
5364  *  PO_DIR
5365  *
5366  */
5367   switch(PCI(pc)->pcop->type) {
5368   case PO_PRODL:
5369   case PO_PRODH:
5370
5371   case PO_INDF0:
5372   case PO_FSR0:
5373     return PCOR(PCOR2(PCI(pc)->pcop)->pcop2)->r;
5374
5375     //    return typeRegWithIdx (PCOR(PCI(pc)->pcop)->rIdx, REG_SFR, 0);
5376
5377 //  case PO_BIT:
5378   case PO_GPR_TEMP:
5379     //fprintf(stderr, "pic16_getRegFromInstruction2 - bit or temp\n");
5380     return PCOR(PCOR2(PCI(pc)->pcop)->pcop2)->r;
5381
5382   case PO_IMMEDIATE:
5383 //      break;
5384 #if 1
5385 //    if(PCOI(PCI(pc)->pcop)->r)
5386 //      return (PCOI(PCOR2(PCI(pc)->pcop)->pcop2)->r);
5387
5388     //fprintf(stderr, "pic16_getRegFromInstruction2 - immediate\n");
5389     return pic16_dirregWithName(PCOR(PCOR2(PCI(pc)->pcop)->pcop2)->r->name);
5390     //return NULL; // PCOR(PCI(pc)->pcop)->r;
5391 #endif
5392
5393   case PO_GPR_BIT:
5394         break;
5395 //    return PCOR2(PCI(pc)->pcop)->r;
5396
5397   case PO_DIR:
5398     //fprintf(stderr, "pic16_getRegFromInstruction2 - dir\n");
5399     return PCOR(PCOR2(PCI(pc)->pcop)->pcop2)->r;
5400
5401   case PO_LITERAL:
5402         break;
5403     //fprintf(stderr, "pic16_getRegFromInstruction2 - literal\n");
5404
5405   default:
5406     //fprintf(stderr, "pic16_getRegFromInstruction2 - unknown reg type %d\n",PCI(pc)->pcop->type);
5407     //genericPrint(stderr, pc);
5408     break;
5409   }
5410
5411   return NULL;
5412
5413 }
5414
5415 /*-----------------------------------------------------------------*/
5416 /*-----------------------------------------------------------------*/
5417
5418 static void AnalyzepBlock(pBlock *pb)
5419 {
5420   pCode *pc;
5421
5422   if(!pb)
5423     return;
5424
5425   /* Find all of the registers used in this pBlock
5426    * by looking at each instruction and examining it's
5427    * operands
5428    */
5429   for(pc = pb->pcHead; pc; pc = pc->next) {
5430
5431     /* Is this an instruction with operands? */
5432     if(pc->type == PC_OPCODE && PCI(pc)->pcop) {
5433
5434       if(PCI(pc)->pcop->type == PO_GPR_TEMP) {
5435
5436         /* Loop through all of the registers declared so far in
5437            this block and see if we find this one there */
5438
5439         regs *r = setFirstItem(pb->tregisters);
5440
5441         while(r) {
5442           if(r->rIdx == PCOR(PCI(pc)->pcop)->r->rIdx) {
5443             PCOR(PCI(pc)->pcop)->r = r;
5444             break;
5445           }
5446           r = setNextItem(pb->tregisters);
5447         }
5448
5449         if(!r) {
5450           /* register wasn't found */
5451           //r = Safe_calloc(1, sizeof(regs));
5452           //memcpy(r,PCOR(PCI(pc)->pcop)->r, sizeof(regs));
5453           //addSet(&pb->tregisters, r);
5454           addSet(&pb->tregisters, PCOR(PCI(pc)->pcop)->r);
5455           //PCOR(PCI(pc)->pcop)->r = r;
5456           //fprintf(stderr,"added register to pblock: reg %d\n",r->rIdx);
5457         }/* else
5458           fprintf(stderr,"found register in pblock: reg %d\n",r->rIdx);
5459          */
5460       }
5461       if(PCI(pc)->pcop->type == PO_GPR_REGISTER) {
5462         if(PCOR(PCI(pc)->pcop)->r) {
5463           pic16_allocWithIdx (PCOR(PCI(pc)->pcop)->r->rIdx);
5464           DFPRINTF((stderr,"found register in pblock: reg 0x%x\n",PCOR(PCI(pc)->pcop)->r->rIdx));
5465         } else {
5466           if(PCI(pc)->pcop->name)
5467             fprintf(stderr,"ERROR: %s is a NULL register\n",PCI(pc)->pcop->name );
5468           else
5469             fprintf(stderr,"ERROR: NULL register\n");
5470         }
5471       }
5472     }
5473
5474
5475   }
5476 }
5477
5478 /*-----------------------------------------------------------------*/
5479 /* */
5480 /*-----------------------------------------------------------------*/
5481 #define PCI_HAS_LABEL(x) ((x) && (PCI(x)->label != NULL))
5482
5483 static void InsertpFlow(pCode *pc, pCode **pflow)
5484 {
5485   if(*pflow)
5486     PCFL(*pflow)->end = pc;
5487
5488   if(!pc || !pc->next)
5489     return;
5490
5491   *pflow = pic16_newpCodeFlow();
5492   pic16_pCodeInsertAfter(pc, *pflow);
5493 }
5494
5495 /*-----------------------------------------------------------------*/
5496 /* pic16_BuildFlow(pBlock *pb) - examine the code in a pBlock and build  */
5497 /*                         the flow blocks.                        */
5498 /*
5499  * pic16_BuildFlow inserts pCodeFlow objects into the pCode chain at each
5500  * point the instruction flow changes.
5501  */
5502 /*-----------------------------------------------------------------*/
5503 void pic16_BuildFlow(pBlock *pb)
5504 {
5505   pCode *pc;
5506   pCode *last_pci=NULL;
5507   pCode *pflow=NULL;
5508   int seq = 0;
5509
5510   if(!pb)
5511     return;
5512
5513   //fprintf (stderr,"build flow start seq %d  ",GpcFlowSeq);
5514   /* Insert a pCodeFlow object at the beginning of a pBlock */
5515
5516   InsertpFlow(pb->pcHead, &pflow);
5517
5518   //pflow = pic16_newpCodeFlow();    /* Create a new Flow object */
5519   //pflow->next = pb->pcHead;  /* Make the current head the next object */
5520   //pb->pcHead->prev = pflow;  /* let the current head point back to the flow object */
5521   //pb->pcHead = pflow;        /* Make the Flow object the head */
5522   //pflow->pb = pb;
5523
5524   for( pc = pic16_findNextInstruction(pb->pcHead);
5525        pc != NULL;
5526        pc=pic16_findNextInstruction(pc)) {
5527
5528     pc->seq = seq++;
5529     PCI(pc)->pcflow = PCFL(pflow);
5530
5531     //fprintf(stderr," build: ");
5532     //pflow->print(stderr,pflow);
5533
5534     if( PCI(pc)->isSkip) {
5535
5536       /* The two instructions immediately following this one
5537        * mark the beginning of a new flow segment */
5538
5539       while(pc && PCI(pc)->isSkip) {
5540
5541         PCI(pc)->pcflow = PCFL(pflow);
5542         pc->seq = seq-1;
5543         seq = 1;
5544
5545         InsertpFlow(pc, &pflow);
5546         pc=pic16_findNextInstruction(pc->next);
5547       }
5548
5549       seq = 0;
5550
5551       if(!pc)
5552         break;
5553
5554       PCI(pc)->pcflow = PCFL(pflow);
5555       pc->seq = 0;
5556       InsertpFlow(pc, &pflow);
5557
5558     } else if ( PCI(pc)->isBranch && !checkLabel(pic16_findNextInstruction(pc->next)))  {
5559
5560       InsertpFlow(pc, &pflow);
5561       seq = 0;
5562
5563     } else if (checkLabel(pc)) {
5564
5565       /* This instruction marks the beginning of a
5566        * new flow segment */
5567
5568       pc->seq = 0;
5569       seq = 1;
5570
5571       /* If the previous pCode is not a flow object, then
5572        * insert a new flow object. (This check prevents
5573        * two consecutive flow objects from being insert in
5574        * the case where a skip instruction preceeds an
5575        * instruction containing a label.) */
5576
5577       if(last_pci && (PCI(last_pci)->pcflow == PCFL(pflow)))
5578         InsertpFlow(pic16_findPrevInstruction(pc->prev), &pflow);
5579
5580       PCI(pc)->pcflow = PCFL(pflow);
5581
5582     }
5583     last_pci = pc;
5584     pc = pc->next;
5585   }
5586
5587   //fprintf (stderr,",end seq %d",GpcFlowSeq);
5588   if(pflow)
5589     PCFL(pflow)->end = pb->pcTail;
5590 }
5591
5592 /*-------------------------------------------------------------------*/
5593 /* unBuildFlow(pBlock *pb) - examine the code in a pBlock and build  */
5594 /*                           the flow blocks.                        */
5595 /*
5596  * unBuildFlow removes pCodeFlow objects from a pCode chain
5597  */
5598 /*-----------------------------------------------------------------*/
5599 static void unBuildFlow(pBlock *pb)
5600 {
5601   pCode *pc,*pcnext;
5602
5603   if(!pb)
5604     return;
5605
5606   pc = pb->pcHead;
5607
5608   while(pc) {
5609     pcnext = pc->next;
5610
5611     if(isPCI(pc)) {
5612
5613       pc->seq = 0;
5614       if(PCI(pc)->pcflow) {
5615         //free(PCI(pc)->pcflow);
5616         PCI(pc)->pcflow = NULL;
5617       }
5618
5619     } else if(isPCFL(pc) )
5620       pc->destruct(pc);
5621
5622     pc = pcnext;
5623   }
5624
5625
5626 }
5627 #if 0
5628 /*-----------------------------------------------------------------*/
5629 /*-----------------------------------------------------------------*/
5630 static void dumpCond(int cond)
5631 {
5632
5633   static char *pcc_str[] = {
5634     //"PCC_NONE",
5635     "PCC_REGISTER",
5636     "PCC_REGISTER2",
5637     "PCC_C",
5638     "PCC_Z",
5639     "PCC_DC",
5640     "PCC_OV",
5641     "PCC_N",
5642     "PCC_W",
5643     "PCC_EXAMINE_PCOP",
5644     "PCC_LITERAL",
5645     "PCC_REL_ADDR"
5646   };
5647
5648   int ncond = sizeof(pcc_str) / sizeof(char *);
5649   int i,j;
5650
5651   fprintf(stderr, "0x%04X\n",cond);
5652
5653   for(i=0,j=1; i<ncond; i++, j<<=1)
5654     if(cond & j)
5655       fprintf(stderr, "  %s\n",pcc_str[i]);
5656
5657 }
5658 #endif
5659
5660 #if 0
5661 /*-----------------------------------------------------------------*/
5662 /*-----------------------------------------------------------------*/
5663 static void FlowStats(pCodeFlow *pcflow)
5664 {
5665
5666   pCode *pc;
5667
5668   if(!isPCFL(pcflow))
5669     return;
5670
5671   fprintf(stderr, " FlowStats - flow block (seq=%d)\n", pcflow->pc.seq);
5672
5673   pc = pic16_findNextpCode(PCODE(pcflow), PC_OPCODE);
5674
5675   if(!pc) {
5676     fprintf(stderr, " FlowStats - empty flow (seq=%d)\n", pcflow->pc.seq);
5677     return;
5678   }
5679
5680
5681   fprintf(stderr, "  FlowStats inCond: ");
5682   dumpCond(pcflow->inCond);
5683   fprintf(stderr, "  FlowStats outCond: ");
5684   dumpCond(pcflow->outCond);
5685
5686 }
5687 #endif
5688 /*-----------------------------------------------------------------*
5689  * int isBankInstruction(pCode *pc) - examine the pCode *pc to determine
5690  *    if it affects the banking bits.
5691  *
5692  * return: -1 == Banking bits are unaffected by this pCode.
5693  *
5694  * return: > 0 == Banking bits are affected.
5695  *
5696  *  If the banking bits are affected, then the returned value describes
5697  * which bits are affected and how they're affected. The lower half
5698  * of the integer maps to the bits that are affected, the upper half
5699  * to whether they're set or cleared.
5700  *
5701  *-----------------------------------------------------------------*/
5702
5703 static int isBankInstruction(pCode *pc)
5704 {
5705   regs *reg;
5706   int bank = -1;
5707
5708   if(!isPCI(pc))
5709     return -1;
5710
5711   if( PCI(pc)->op == POC_MOVLB ||
5712       (( (reg = pic16_getRegFromInstruction(pc)) != NULL) && isBSR_REG(reg))) {
5713     bank = PCOL(pc)->lit;
5714   }
5715
5716   return bank;
5717 }
5718
5719
5720 /*-----------------------------------------------------------------*/
5721 /*-----------------------------------------------------------------*/
5722 static void FillFlow(pCodeFlow *pcflow)
5723 {
5724
5725   pCode *pc;
5726   int cur_bank;
5727
5728   if(!isPCFL(pcflow))
5729     return;
5730
5731   //  fprintf(stderr, " FillFlow - flow block (seq=%d)\n", pcflow->pc.seq);
5732
5733   pc = pic16_findNextpCode(PCODE(pcflow), PC_OPCODE);
5734
5735   if(!pc) {
5736     //fprintf(stderr, " FillFlow - empty flow (seq=%d)\n", pcflow->pc.seq);
5737     return;
5738   }
5739
5740   cur_bank = -1;
5741
5742   do {
5743     isBankInstruction(pc);
5744     pc = pc->next;
5745   } while (pc && (pc != pcflow->end) && !isPCFL(pc));
5746
5747 /*
5748   if(!pc ) {
5749     fprintf(stderr, "  FillFlow - Bad end of flow\n");
5750   } else {
5751     fprintf(stderr, "  FillFlow - Ending flow with\n  ");
5752     pc->print(stderr,pc);
5753   }
5754
5755   fprintf(stderr, "  FillFlow inCond: ");
5756   dumpCond(pcflow->inCond);
5757   fprintf(stderr, "  FillFlow outCond: ");
5758   dumpCond(pcflow->outCond);
5759 */
5760 }
5761
5762 /*-----------------------------------------------------------------*/
5763 /*-----------------------------------------------------------------*/
5764 static void LinkFlow_pCode(pCodeInstruction *from, pCodeInstruction *to)
5765 {
5766   pCodeFlowLink *fromLink, *toLink;
5767
5768   if(!from || !to || !to->pcflow || !from->pcflow)
5769     return;
5770
5771   fromLink = pic16_newpCodeFlowLink(from->pcflow);
5772   toLink   = pic16_newpCodeFlowLink(to->pcflow);
5773
5774   addSetIfnotP(&(from->pcflow->to), toLink);   //to->pcflow);
5775   addSetIfnotP(&(to->pcflow->from), fromLink); //from->pcflow);
5776
5777 }
5778
5779 /*-----------------------------------------------------------------*
5780  * void LinkFlow(pBlock *pb)
5781  *
5782  * In pic16_BuildFlow, the PIC code has been partitioned into contiguous
5783  * non-branching segments. In LinkFlow, we determine the execution
5784  * order of these segments. For example, if one of the segments ends
5785  * with a skip, then we know that there are two possible flow segments
5786  * to which control may be passed.
5787  *-----------------------------------------------------------------*/
5788 static void LinkFlow(pBlock *pb)
5789 {
5790   pCode *pc=NULL;
5791   pCode *pcflow;
5792   pCode *pct;
5793
5794   //fprintf(stderr,"linkflow \n");
5795
5796   for( pcflow = pic16_findNextpCode(pb->pcHead, PC_FLOW);
5797        pcflow != NULL;
5798        pcflow = pic16_findNextpCode(pcflow->next, PC_FLOW) ) {
5799
5800     if(!isPCFL(pcflow))
5801       fprintf(stderr, "LinkFlow - pcflow is not a flow object ");
5802
5803     //fprintf(stderr," link: ");
5804     //pcflow->print(stderr,pcflow);
5805
5806     //FillFlow(PCFL(pcflow));
5807
5808     pc = PCFL(pcflow)->end;
5809
5810     //fprintf(stderr, "LinkFlow - flow block (seq=%d) ", pcflow->seq);
5811     if(isPCI_SKIP(pc)) {
5812       //fprintf(stderr, "ends with skip\n");
5813       //pc->print(stderr,pc);
5814       pct=pic16_findNextInstruction(pc->next);
5815       LinkFlow_pCode(PCI(pc),PCI(pct));
5816       pct=pic16_findNextInstruction(pct->next);
5817       LinkFlow_pCode(PCI(pc),PCI(pct));
5818       continue;
5819     }
5820
5821     if(isPCI_BRANCH(pc)) {
5822       pCodeOpLabel *pcol = PCOLAB(PCI(pc)->pcop);
5823
5824       //fprintf(stderr, "ends with branch\n  ");
5825       //pc->print(stderr,pc);
5826
5827       if(!(pcol && isPCOLAB(pcol))) {
5828         if((PCI(pc)->op != POC_RETLW)
5829                 && (PCI(pc)->op != POC_RETURN) && (PCI(pc)->op != POC_CALL) && (PCI(pc)->op != POC_RETFIE) ) {
5830
5831                 /* continue if label is '$' which assembler knows how to parse */
5832                 if(((PCI(pc)->pcop->type == PO_STR) && !strcmp(PCI(pc)->pcop->name, "$")))continue;
5833
5834                 if(pic16_pcode_verbose) {
5835                         pc->print(stderr,pc);
5836                         fprintf(stderr, "ERROR: %s, branch instruction doesn't have label\n",__FUNCTION__);
5837                 }
5838         }
5839         continue;
5840       }
5841
5842       if( (pct = findLabelinpBlock(pb,pcol)) != NULL)
5843         LinkFlow_pCode(PCI(pc),PCI(pct));
5844       else
5845         fprintf(stderr, "ERROR: %s, couldn't find label. key=%d,lab=%s\n",
5846                 __FUNCTION__,pcol->key,((PCOP(pcol)->name)?PCOP(pcol)->name:"-"));
5847
5848 //      fprintf(stderr,"pic16_newpCodeOpLabel: key=%d, name=%s\n",pcol->key,(PCOP(pcol)->name)?(PCOP(pcol)->name):"<unknown>");
5849
5850       continue;
5851     }
5852
5853     if(isPCI(pc)) {
5854       //fprintf(stderr, "ends with non-branching instruction:\n");
5855       //pc->print(stderr,pc);
5856
5857       LinkFlow_pCode(PCI(pc),PCI(pic16_findNextInstruction(pc->next)));
5858
5859       continue;
5860     }
5861
5862     if(pc) {
5863       //fprintf(stderr, "ends with unknown\n");
5864       //pc->print(stderr,pc);
5865       continue;
5866     }
5867
5868     //fprintf(stderr, "ends with nothing: ERROR\n");
5869
5870   }
5871 }
5872 /*-----------------------------------------------------------------*/
5873 /*-----------------------------------------------------------------*/
5874
5875 /*-----------------------------------------------------------------*/
5876 /*-----------------------------------------------------------------*/
5877 int pic16_isPCinFlow(pCode *pc, pCode *pcflow)
5878 {
5879
5880   if(!pc || !pcflow)
5881     return 0;
5882
5883   if(!isPCI(pc) || !PCI(pc)->pcflow || !isPCFL(pcflow) )
5884     return 0;
5885
5886   if( PCI(pc)->pcflow->pc.seq == pcflow->seq)
5887     return 1;
5888
5889   return 0;
5890 }
5891
5892
5893
5894
5895
5896 /*-----------------------------------------------------------------*/
5897 /* insertBankSwitch - inserts a bank switch statement in the       */
5898 /*                    assembly listing                             */
5899 /*                                                                 */
5900 /* position == 0: insert before                                    */
5901 /* position == 1: insert after pc                                  */
5902 /* position == 2: 0 previous was a skip instruction                */
5903 /*-----------------------------------------------------------------*/
5904 static void insertBankSwitch(int position, pCode *pc)
5905 {
5906   pCode *new_pc;
5907   regs *reg;
5908
5909         if(!pc)
5910                 return;
5911
5912         /* emit BANKSEL [symbol] */
5913
5914         reg = pic16_getRegFromInstruction(pc);
5915         if(!reg)return;
5916         new_pc = pic16_newpCodeAsmDir("BANKSEL", "%s", pic16_get_op_from_instruction(PCI(pc)));
5917
5918 //      position = 0;           // position is always before (sanity check!)
5919
5920 #if 0
5921         fprintf(stderr, "%s:%d: inserting bank switch\tbank = %d\n", __FUNCTION__, __LINE__, bsr);
5922         pc->print(stderr, pc);
5923 #endif
5924
5925         switch(position) {
5926                 case 1: {
5927                         /* insert the bank switch after this pc instruction */
5928                         pCode *pcnext = pic16_findNextInstruction(pc);
5929                         pic16_pCodeInsertAfter(pc, new_pc);
5930                         if(pcnext)pc = pcnext;
5931                 }; break;
5932
5933                 case 0:
5934                         /* insert the bank switch BEFORE this pc instruction */
5935                         pic16_pCodeInsertAfter(pc->prev, new_pc);
5936                         break;
5937         }
5938
5939
5940         /* Move the label, if there is one */
5941
5942         if(PCI(pc)->label) {
5943 //              fprintf(stderr, "%s:%d: moving label due to bank switch directive src= 0x%p dst= 0x%p\n",
5944 //                      __FILE__, __LINE__, pc, new_pc);
5945                 PCAD(new_pc)->pci.label = PCI(pc)->label;
5946                 PCI(pc)->label = NULL;
5947         }
5948
5949 //  fprintf(stderr, "BankSwitch has been inserted\n");
5950 }
5951
5952
5953 /*-----------------------------------------------------------------*/
5954 /*int compareBankFlow - compare the banking requirements between   */
5955 /*  flow objects. */
5956 /*-----------------------------------------------------------------*/
5957 static int compareBankFlow(pCodeFlow *pcflow, pCodeFlowLink *pcflowLink, int toORfrom)
5958 {
5959
5960   if(!pcflow || !pcflowLink || !pcflowLink->pcflow)
5961     return 0;
5962
5963   if(!isPCFL(pcflow) || !isPCFL(pcflowLink->pcflow))
5964     return 0;
5965
5966   if(pcflow->firstBank == -1)
5967     return 0;
5968
5969
5970   if(pcflowLink->pcflow->firstBank == -1) {
5971     pCodeFlowLink *pctl = setFirstItem( toORfrom ?
5972                                         pcflowLink->pcflow->to :
5973                                         pcflowLink->pcflow->from);
5974     return compareBankFlow(pcflow, pctl, toORfrom);
5975   }
5976
5977   if(toORfrom) {
5978     if(pcflow->lastBank == pcflowLink->pcflow->firstBank)
5979       return 0;
5980
5981     pcflowLink->bank_conflict++;
5982     pcflowLink->pcflow->FromConflicts++;
5983     pcflow->ToConflicts++;
5984   } else {
5985
5986     if(pcflow->firstBank == pcflowLink->pcflow->lastBank)
5987       return 0;
5988
5989     pcflowLink->bank_conflict++;
5990     pcflowLink->pcflow->ToConflicts++;
5991     pcflow->FromConflicts++;
5992
5993   }
5994   /*
5995   fprintf(stderr,"compare flow found conflict: seq %d from conflicts %d, to conflicts %d\n",
5996           pcflowLink->pcflow->pc.seq,
5997           pcflowLink->pcflow->FromConflicts,
5998           pcflowLink->pcflow->ToConflicts);
5999   */
6000   return 1;
6001
6002 }
6003
6004 #if 0
6005 /*-----------------------------------------------------------------*/
6006 /*-----------------------------------------------------------------*/
6007 static void DumpFlow(pBlock *pb)
6008 {
6009   pCode *pc=NULL;
6010   pCode *pcflow;
6011   pCodeFlowLink *pcfl;
6012
6013
6014   fprintf(stderr,"Dump flow \n");
6015   pb->pcHead->print(stderr, pb->pcHead);
6016
6017   pcflow = pic16_findNextpCode(pb->pcHead, PC_FLOW);
6018   pcflow->print(stderr,pcflow);
6019
6020   for( pcflow = pic16_findNextpCode(pb->pcHead, PC_FLOW);
6021        pcflow != NULL;
6022        pcflow = pic16_findNextpCode(pcflow->next, PC_FLOW) ) {
6023
6024     if(!isPCFL(pcflow)) {
6025       fprintf(stderr, "DumpFlow - pcflow is not a flow object ");
6026       continue;
6027     }
6028     fprintf(stderr,"dumping: ");
6029     pcflow->print(stderr,pcflow);
6030     FlowStats(PCFL(pcflow));
6031
6032     for(pcfl = setFirstItem(PCFL(pcflow)->to); pcfl; pcfl=setNextItem(PCFL(pcflow)->to)) {
6033
6034       pc = PCODE(pcfl->pcflow);
6035
6036       fprintf(stderr, "    from seq %d:\n",pc->seq);
6037       if(!isPCFL(pc)) {
6038         fprintf(stderr,"oops dumpflow - from is not a pcflow\n");
6039         pc->print(stderr,pc);
6040       }
6041
6042     }
6043
6044     for(pcfl = setFirstItem(PCFL(pcflow)->to); pcfl; pcfl=setNextItem(PCFL(pcflow)->to)) {
6045
6046       pc = PCODE(pcfl->pcflow);
6047
6048       fprintf(stderr, "    to seq %d:\n",pc->seq);
6049       if(!isPCFL(pc)) {
6050         fprintf(stderr,"oops dumpflow - to is not a pcflow\n");
6051         pc->print(stderr,pc);
6052       }
6053
6054     }
6055
6056   }
6057
6058 }
6059 #endif
6060 /*-----------------------------------------------------------------*/
6061 /*-----------------------------------------------------------------*/
6062 static int OptimizepBlock(pBlock *pb)
6063 {
6064   pCode *pc, *pcprev;
6065   int matches =0;
6066
6067   if(!pb || !peepOptimizing)
6068     return 0;
6069
6070   DFPRINTF((stderr," Optimizing pBlock: %c\n",getpBlock_dbName(pb)));
6071 /*
6072   for(pc = pb->pcHead; pc; pc = pc->next)
6073     matches += pic16_pCodePeepMatchRule(pc);
6074 */
6075
6076   pc = pic16_findNextInstruction(pb->pcHead);
6077   if(!pc)
6078     return 0;
6079
6080   pcprev = pc->prev;
6081   do {
6082
6083
6084     if(pic16_pCodePeepMatchRule(pc)) {
6085
6086       matches++;
6087
6088       if(pcprev)
6089         pc = pic16_findNextInstruction(pcprev->next);
6090       else
6091         pc = pic16_findNextInstruction(pb->pcHead);
6092     } else
6093       pc = pic16_findNextInstruction(pc->next);
6094   } while(pc);
6095
6096   if(matches)
6097     DFPRINTF((stderr," Optimizing pBlock: %c - matches=%d\n",getpBlock_dbName(pb),matches));
6098   return matches;
6099
6100 }
6101
6102 /*-----------------------------------------------------------------*/
6103 /*-----------------------------------------------------------------*/
6104 static pCode * findInstructionUsingLabel(pCodeLabel *pcl, pCode *pcs)
6105 {
6106   pCode *pc;
6107
6108   for(pc = pcs; pc; pc = pc->next) {
6109
6110     if(((pc->type == PC_OPCODE) || (pc->type == PC_INLINE)) &&
6111        (PCI(pc)->pcop) &&
6112        (PCI(pc)->pcop->type == PO_LABEL) &&
6113        (PCOLAB(PCI(pc)->pcop)->key == pcl->key))
6114       return pc;
6115   }
6116
6117
6118   return NULL;
6119 }
6120
6121 /*-----------------------------------------------------------------*/
6122 /*-----------------------------------------------------------------*/
6123 static void exchangeLabels(pCodeLabel *pcl, pCode *pc)
6124 {
6125
6126   char *s=NULL;
6127
6128   if(isPCI(pc) &&
6129      (PCI(pc)->pcop) &&
6130      (PCI(pc)->pcop->type == PO_LABEL)) {
6131
6132     pCodeOpLabel *pcol = PCOLAB(PCI(pc)->pcop);
6133
6134 //      fprintf(stderr,"changing label key from %d to %d\n",pcol->key, pcl->key);
6135     if(pcol->pcop.name)
6136       free(pcol->pcop.name);
6137
6138     /* If the key is negative, then we (probably) have a label to
6139      * a function and the name is already defined */
6140
6141     if(pcl->key>0)
6142       sprintf(s=buffer,"_%05d_DS_",pcl->key);
6143     else
6144       s = pcl->label;
6145
6146     //sprintf(buffer,"_%05d_DS_",pcl->key);
6147     if(!s) {
6148       fprintf(stderr, "ERROR %s:%d function label is null\n",__FUNCTION__,__LINE__);
6149     }
6150     pcol->pcop.name = Safe_strdup(s);
6151     pcol->key = pcl->key;
6152     //pc->print(stderr,pc);
6153
6154   }
6155
6156
6157 }
6158
6159 /*-----------------------------------------------------------------*/
6160 /* pBlockRemoveUnusedLabels - remove the pCode labels from the     */
6161 /*                            pCode chain if they're not used.     */
6162 /*-----------------------------------------------------------------*/
6163 static void pBlockRemoveUnusedLabels(pBlock *pb)
6164 {
6165   pCode *pc; pCodeLabel *pcl;
6166
6167   if(!pb)
6168     return;
6169
6170   for(pc = pb->pcHead; (pc=pic16_findNextInstruction(pc->next)) != NULL; ) {
6171
6172     pBranch *pbr = PCI(pc)->label;
6173     if(pbr && pbr->next) {
6174       pCode *pcd = pb->pcHead;
6175
6176 //      fprintf(stderr, "multiple labels\n");
6177 //      pc->print(stderr,pc);
6178
6179       pbr = pbr->next;
6180       while(pbr) {
6181
6182         while ( (pcd = findInstructionUsingLabel(PCL(PCI(pc)->label->pc), pcd)) != NULL) {
6183           //fprintf(stderr,"Used by:\n");
6184           //pcd->print(stderr,pcd);
6185
6186           exchangeLabels(PCL(pbr->pc),pcd);
6187
6188           pcd = pcd->next;
6189         }
6190         pbr = pbr->next;
6191       }
6192     }
6193   }
6194
6195   for(pc = pb->pcHead; pc; pc = pc->next) {
6196
6197     if(isPCL(pc)) // pc->type == PC_LABEL)
6198       pcl = PCL(pc);
6199     else if (isPCI(pc) && PCI(pc)->label) //((pc->type == PC_OPCODE) && PCI(pc)->label)
6200       pcl = PCL(PCI(pc)->label->pc);
6201     else continue;
6202
6203 //      fprintf(stderr," found  A LABEL !!! key = %d, %s\n", pcl->key,pcl->label);
6204
6205     /* This pCode is a label, so search the pBlock to see if anyone
6206      * refers to it */
6207
6208     if( (pcl->key>0) && (!findInstructionUsingLabel(pcl, pb->pcHead))
6209         && (!pcl->force)) {
6210     //if( !findInstructionUsingLabel(pcl, pb->pcHead)) {
6211       /* Couldn't find an instruction that refers to this label
6212        * So, unlink the pCode label from it's pCode chain
6213        * and destroy the label */
6214 //      fprintf(stderr," removed  A LABEL !!! key = %d, %s\n", pcl->key,pcl->label);
6215
6216       DFPRINTF((stderr," !!! REMOVED A LABEL !!! key = %d, %s\n", pcl->key,pcl->label));
6217       if(pc->type == PC_LABEL) {
6218         pic16_unlinkpCode(pc);
6219         pCodeLabelDestruct(pc);
6220       } else {
6221         unlinkpCodeFromBranch(pc, PCODE(pcl));
6222         /*if(pc->label->next == NULL && pc->label->pc == NULL) {
6223           free(pc->label);
6224         }*/
6225       }
6226
6227     }
6228   }
6229
6230 }
6231
6232
6233 /*-----------------------------------------------------------------*/
6234 /* pic16_pBlockMergeLabels - remove the pCode labels from the pCode      */
6235 /*                     chain and put them into pBranches that are  */
6236 /*                     associated with the appropriate pCode       */
6237 /*                     instructions.                               */
6238 /*-----------------------------------------------------------------*/
6239 void pic16_pBlockMergeLabels(pBlock *pb)
6240 {
6241   pBranch *pbr;
6242   pCode *pc, *pcnext=NULL;
6243
6244   if(!pb)
6245     return;
6246
6247   /* First, Try to remove any unused labels */
6248   //pBlockRemoveUnusedLabels(pb);
6249
6250   /* Now loop through the pBlock and merge the labels with the opcodes */
6251
6252   pc = pb->pcHead;
6253   //  for(pc = pb->pcHead; pc; pc = pc->next) {
6254
6255   while(pc) {
6256     pCode *pcn = pc->next;
6257
6258     if(pc->type == PC_LABEL) {
6259
6260 //      fprintf(stderr," checking merging label %s\n",PCL(pc)->label);
6261 //      fprintf(stderr,"Checking label key = %d\n",PCL(pc)->key);
6262
6263       if((pcnext = pic16_findNextInstruction(pc) )) {
6264
6265 //              pcnext->print(stderr, pcnext);
6266
6267         // Unlink the pCode label from it's pCode chain
6268         pic16_unlinkpCode(pc);
6269
6270 //      fprintf(stderr,"Merged label key = %d\n",PCL(pc)->key);
6271         // And link it into the instruction's pBranch labels. (Note, since
6272         // it's possible to have multiple labels associated with one instruction
6273         // we must provide a means to accomodate the additional labels. Thus
6274         // the labels are placed into the singly-linked list "label" as
6275         // opposed to being a single member of the pCodeInstruction.)
6276
6277         //_ALLOC(pbr,sizeof(pBranch));
6278 #if 1
6279         pbr = Safe_calloc(1,sizeof(pBranch));
6280         pbr->pc = pc;
6281         pbr->next = NULL;
6282
6283         PCI(pcnext)->label = pic16_pBranchAppend(PCI(pcnext)->label,pbr);
6284 #endif
6285       } else {
6286         if(pic16_pcode_verbose)
6287         fprintf(stderr, "WARNING: couldn't associate label %s with an instruction\n",PCL(pc)->label);
6288       }
6289     } else if(pc->type == PC_CSOURCE) {
6290
6291       /* merge the source line symbolic info into the next instruction */
6292       if((pcnext = pic16_findNextInstruction(pc) )) {
6293
6294         // Unlink the pCode label from it's pCode chain
6295         pic16_unlinkpCode(pc);
6296         PCI(pcnext)->cline = PCCS(pc);
6297         //fprintf(stderr, "merging CSRC\n");
6298         //genericPrint(stderr,pcnext);
6299       }
6300
6301     }
6302     pc = pcn;
6303   }
6304   pBlockRemoveUnusedLabels(pb);
6305
6306 }
6307
6308 /*-----------------------------------------------------------------*/
6309 /*-----------------------------------------------------------------*/
6310 static int OptimizepCode(char dbName)
6311 {
6312 #define MAX_PASSES 4
6313
6314   int matches = 0;
6315   int passes = 0;
6316   pBlock *pb;
6317
6318   if(!the_pFile)
6319     return 0;
6320
6321   DFPRINTF((stderr," Optimizing pCode\n"));
6322
6323   do {
6324     matches = 0;
6325     for(pb = the_pFile->pbHead; pb; pb = pb->next) {
6326       if('*' == dbName || getpBlock_dbName(pb) == dbName)
6327         matches += OptimizepBlock(pb);
6328     }
6329   }
6330   while(matches && ++passes < MAX_PASSES);
6331
6332   return matches;
6333 }
6334
6335 /*-----------------------------------------------------------------*/
6336 /* pic16_popCopyGPR2Bit - copy a pcode operator                          */
6337 /*-----------------------------------------------------------------*/
6338
6339 pCodeOp *pic16_popCopyGPR2Bit(pCodeOp *pc, int bitval)
6340 {
6341   pCodeOp *pcop;
6342
6343   pcop = pic16_newpCodeOpBit(pc->name, bitval, 0);
6344
6345   if( !( (pcop->type == PO_LABEL) ||
6346          (pcop->type == PO_LITERAL) ||
6347          (pcop->type == PO_STR) ))
6348     PCOR(pcop)->r = PCOR(pc)->r;  /* This is dangerous... */
6349     PCOR(pcop)->r->wasUsed = 1;
6350
6351   return pcop;
6352 }
6353
6354
6355 /*----------------------------------------------------------------------*
6356  * pic16_areRegsSame - check to see if the names of two registers match *
6357  *----------------------------------------------------------------------*/
6358 int pic16_areRegsSame(regs *r1, regs *r2)
6359 {
6360         if(!strcmp(r1->name, r2->name))return 1;
6361
6362   return 0;
6363 }
6364
6365
6366 /*-----------------------------------------------------------------*/
6367 /*-----------------------------------------------------------------*/
6368 static void pic16_FixRegisterBanking(pBlock *pb)
6369 {
6370   pCode *pc=NULL;
6371   pCode *pcprev=NULL;
6372   regs *reg, *prevreg;
6373
6374         if(!pb)
6375                 return;
6376
6377         pc = pic16_findNextpCode(pb->pcHead, PC_OPCODE);
6378         if(!pc)
6379                 return;
6380
6381         /* loop through all of the flow blocks with in one pblock */
6382
6383 //      fprintf(stderr,"%s:%d: Register banking\n", __FUNCTION__, __LINE__);
6384
6385   prevreg = NULL;
6386   do {
6387     /* at this point, pc should point to a PC_FLOW object */
6388     /* for each flow block, determine the register banking
6389        requirements */
6390
6391       if(isPCI(pc) && !PCI(pc)->is2MemOp) {
6392                 reg = pic16_getRegFromInstruction(pc);
6393
6394 #if 0
6395                 fprintf(stderr, "reg = %p\n", reg);
6396                 if(reg) {
6397                         fprintf(stderr, "%s:%d:  %s  %d\n",__FUNCTION__, __LINE__, reg->name, reg->rIdx);
6398                         fprintf(stderr, "addr = 0x%03x, bank = %d, bit=%d\tmapped = %d sfr=%d fix=%d\n",
6399                                 reg->address,REG_BANK(reg),reg->isBitField, reg->isMapped,
6400                                 pic16_finalMapping[ reg->address ].isSFR, reg->isFixed);
6401                 }
6402 #endif
6403
6404                 /* we can be 99% that within a pBlock, between two consequtive
6405                  * refernces to the same register, the extra banksel is needless */
6406
6407                 if((reg && !isACCESS_BANK(reg) && (isBankInstruction(pc) == -1))
6408                         && (!isPCI_LIT(pc))
6409                         && (PCI(pc)->op != POC_CALL)
6410
6411                         && ( ((pic16_options.opt_banksel>0)
6412                                 && (!prevreg || (prevreg && !pic16_areRegsSame(reg, prevreg))))
6413                             || (!pic16_options.opt_banksel)
6414                            )
6415                                    )
6416                            {
6417                   /* Examine the instruction before this one to make sure it is
6418                    * not a skip type instruction */
6419                         pcprev = findPrevpCode(pc->prev, PC_OPCODE);
6420
6421                         /* FIXME: if previous is SKIP pCode, we should move the BANKSEL
6422                          * before SKIP, but we have to check if the SKIP uses BANKSEL, etc... */
6423                         if(!pcprev || (pcprev && !isPCI_SKIP(pcprev))) {
6424                                 prevreg = reg;
6425                                 if(!pic16_options.no_banksel)
6426                                         insertBankSwitch(0, pc);
6427                         }
6428                 }
6429
6430         pcprev = pc;
6431
6432       }
6433
6434       pc = pc->next;
6435   }while (pc);
6436
6437 #if 0
6438   if(pcprev && cur_bank) {
6439
6440     int pos = 1;  /* Assume that the bank switch instruction(s)
6441                    * are inserted after this instruction */
6442
6443     if((PCI(pcprev)->op == POC_RETLW) ||
6444        (PCI(pcprev)->op == POC_RETURN) ||
6445        (PCI(pcprev)->op == POC_RETFIE)) {
6446
6447       /* oops, a RETURN - we need to switch banks *before* the RETURN */
6448
6449       pos = 0;
6450
6451     }
6452
6453     /* Brute force - make sure that we point to bank 0 at the
6454      * end of each flow block */
6455
6456 //    insertBankSwitch(pos, pcprev, 0);
6457 /*
6458     new_pc = pic16_newpCode(POC_MOVLB, pic16_newpCodeOpLit(0));
6459     pic16_pCodeInsertAfter(pcprev, new_pc);
6460 */
6461     cur_bank = 0;
6462     //fprintf(stderr, "Brute force switch\n");
6463   }
6464 #endif
6465
6466 }
6467
6468
6469 static void pBlockDestruct(pBlock *pb)
6470 {
6471
6472   if(!pb)
6473     return;
6474
6475
6476   free(pb);
6477
6478 }
6479
6480 /*-----------------------------------------------------------------*/
6481 /* void mergepBlocks(char dbName) - Search for all pBlocks with the*/
6482 /*                                  name dbName and combine them   */
6483 /*                                  into one block                 */
6484 /*-----------------------------------------------------------------*/
6485 static void mergepBlocks(char dbName)
6486 {
6487
6488   pBlock *pb, *pbmerged = NULL,*pbn;
6489
6490   pb = the_pFile->pbHead;
6491
6492   //fprintf(stderr," merging blocks named %c\n",dbName);
6493   while(pb) {
6494
6495     pbn = pb->next;
6496     //fprintf(stderr,"looking at %c\n",getpBlock_dbName(pb));
6497     if( getpBlock_dbName(pb) == dbName) {
6498
6499       //fprintf(stderr," merged block %c\n",dbName);
6500
6501       if(!pbmerged) {
6502         pbmerged = pb;
6503       } else {
6504         pic16_addpCode2pBlock(pbmerged, pb->pcHead);
6505         /* pic16_addpCode2pBlock doesn't handle the tail: */
6506         pbmerged->pcTail = pb->pcTail;
6507
6508         pb->prev->next = pbn;
6509         if(pbn)
6510           pbn->prev = pb->prev;
6511
6512
6513         pBlockDestruct(pb);
6514       }
6515       //pic16_printpBlock(stderr, pbmerged);
6516     }
6517     pb = pbn;
6518   }
6519
6520 }
6521
6522 /*-----------------------------------------------------------------*/
6523 /* AnalyzeFlow - Examine the flow of the code and optimize         */
6524 /*                                                                 */
6525 /* level 0 == minimal optimization                                 */
6526 /*   optimize registers that are used only by two instructions     */
6527 /* level 1 == maximal optimization                                 */
6528 /*   optimize by looking at pairs of instructions that use the     */
6529 /*   register.                                                     */
6530 /*-----------------------------------------------------------------*/
6531
6532 static void AnalyzeFlow(int level)
6533 {
6534   static int times_called=0;
6535   pBlock *pb;
6536
6537         if(!the_pFile) {
6538
6539                 /* remove unused allocated registers before exiting */
6540                 pic16_RemoveUnusedRegisters();
6541
6542           return;
6543         }
6544
6545
6546   /* if this is not the first time this function has been called,
6547      then clean up old flow information */
6548         if(times_called++) {
6549                 for(pb = the_pFile->pbHead; pb; pb = pb->next)
6550                         unBuildFlow(pb);
6551
6552                 pic16_RegsUnMapLiveRanges();
6553         }
6554
6555         GpcFlowSeq = 1;
6556
6557   /* Phase 2 - Flow Analysis - Register Banking
6558    *
6559    * In this phase, the individual flow blocks are examined
6560    * and register banking is fixed.
6561    */
6562
6563 #if 0
6564         for(pb = the_pFile->pbHead; pb; pb = pb->next)
6565                 pic16_FixRegisterBanking(pb);
6566 #endif
6567
6568   /* Phase 2 - Flow Analysis
6569    *
6570    * In this phase, the pCode is partition into pCodeFlow
6571    * blocks. The flow blocks mark the points where a continuous
6572    * stream of instructions changes flow (e.g. because of
6573    * a call or goto or whatever).
6574    */
6575
6576         for(pb = the_pFile->pbHead; pb; pb = pb->next)
6577                 pic16_BuildFlow(pb);
6578
6579
6580   /* Phase 2 - Flow Analysis - linking flow blocks
6581    *
6582    * In this phase, the individual flow blocks are examined
6583    * to determine their order of excution.
6584    */
6585
6586         for(pb = the_pFile->pbHead; pb; pb = pb->next)
6587                 LinkFlow(pb);
6588
6589   /* Phase 3 - Flow Analysis - Flow Tree
6590    *
6591    * In this phase, the individual flow blocks are examined
6592    * to determine their order of execution.
6593    */
6594
6595         for(pb = the_pFile->pbHead; pb; pb = pb->next)
6596                 pic16_BuildFlowTree(pb);
6597
6598
6599   /* Phase x - Flow Analysis - Used Banks
6600    *
6601    * In this phase, the individual flow blocks are examined
6602    * to determine the Register Banks they use
6603    */
6604
6605 #if 0
6606         for(pb = the_pFile->pbHead; pb; pb = pb->next)
6607                 FixBankFlow(pb);
6608 #endif
6609
6610
6611         for(pb = the_pFile->pbHead; pb; pb = pb->next)
6612                 pic16_pCodeRegMapLiveRanges(pb);
6613
6614         pic16_RemoveUnusedRegisters();
6615
6616   //  for(pb = the_pFile->pbHead; pb; pb = pb->next)
6617         pic16_pCodeRegOptimizeRegUsage(level);
6618
6619
6620         if(!options.nopeep)
6621                 OptimizepCode('*');
6622
6623
6624 #if 0
6625         for(pb = the_pFile->pbHead; pb; pb = pb->next)
6626                 DumpFlow(pb);
6627 #endif
6628
6629   /* debug stuff */
6630         for(pb = the_pFile->pbHead; pb; pb = pb->next) {
6631           pCode *pcflow;
6632                 for( pcflow = pic16_findNextpCode(pb->pcHead, PC_FLOW);
6633                         (pcflow = pic16_findNextpCode(pcflow, PC_FLOW)) != NULL;
6634                         pcflow = pcflow->next) {
6635
6636                         FillFlow(PCFL(pcflow));
6637                 }
6638         }
6639
6640 #if 0
6641         for(pb = the_pFile->pbHead; pb; pb = pb->next) {
6642           pCode *pcflow;
6643
6644                 for( pcflow = pic16_findNextpCode(pb->pcHead, PC_FLOW);
6645                         (pcflow = pic16_findNextpCode(pcflow, PC_FLOW)) != NULL;
6646                         pcflow = pcflow->next) {
6647
6648                         FlowStats(PCFL(pcflow));
6649                 }
6650         }
6651 #endif
6652 }
6653
6654 /* VR -- no need to analyze banking in flow, but left here :
6655  *      1. because it may be used in the future for other purposes
6656  *      2. because if omitted we'll miss some optimization done here
6657  *
6658  * Perhaps I should rename it to something else
6659  */
6660
6661 /*-----------------------------------------------------------------*/
6662 /* pic16_AnalyzeBanking - Called after the memory addresses have been    */
6663 /*                  assigned to the registers.                     */
6664 /*                                                                 */
6665 /*-----------------------------------------------------------------*/
6666
6667 void pic16_AnalyzeBanking(void)
6668 {
6669   pBlock  *pb;
6670
6671         if(!pic16_picIsInitialized()) {
6672                 fprintf(stderr,"Temporary ERROR: at the moment you have to use\n");
6673                 fprintf(stderr,"an include file create by inc2h.pl. See SDCC source:\n");
6674                 fprintf(stderr,"support/scripts/inc2h.pl\n");
6675                 fprintf(stderr,"this is a nuisance bug that will be fixed shortly\n");
6676
6677                 /* I think it took a long long time to fix this bug! ;-) -- VR */
6678
6679                 exit(1);
6680         }
6681
6682
6683         /* Phase x - Flow Analysis - Used Banks
6684          *
6685          * In this phase, the individual flow blocks are examined
6686          * to determine the Register Banks they use
6687          */
6688
6689         AnalyzeFlow(0);
6690         AnalyzeFlow(1);
6691
6692 //      for(pb = the_pFile->pbHead; pb; pb = pb->next)
6693 //              BanksUsedFlow(pb);
6694
6695         if(!the_pFile)return;
6696
6697         for(pb = the_pFile->pbHead; pb; pb = pb->next) {
6698 //              fprintf(stderr, "%s:%d: Fix register banking in pb= 0x%p\n", __FILE__, __LINE__, pb);
6699                 pic16_FixRegisterBanking(pb);
6700         }
6701
6702 }
6703
6704 /*-----------------------------------------------------------------*/
6705 /* buildCallTree - Look at the flow and extract all of the calls.  */
6706 /*-----------------------------------------------------------------*/
6707 static set *register_usage(pBlock *pb);
6708
6709 static void buildCallTree(void    )
6710 {
6711   pBranch *pbr;
6712   pBlock  *pb;
6713   pCode   *pc;
6714
6715   if(!the_pFile)
6716     return;
6717
6718
6719
6720   /* Now build the call tree.
6721      First we examine all of the pCodes for functions.
6722      Keep in mind that the function boundaries coincide
6723      with pBlock boundaries.
6724
6725      The algorithm goes something like this:
6726      We have two nested loops. The outer loop iterates
6727      through all of the pBlocks/functions. The inner
6728      loop iterates through all of the pCodes for
6729      a given pBlock. When we begin iterating through
6730      a pBlock, the variable pc_fstart, pCode of the start
6731      of a function, is cleared. We then search for pCodes
6732      of type PC_FUNCTION. When one is encountered, we
6733      initialize pc_fstart to this and at the same time
6734      associate a new pBranch object that signifies a
6735      branch entry. If a return is found, then this signifies
6736      a function exit point. We'll link the pCodes of these
6737      returns to the matching pc_fstart.
6738
6739      When we're done, a doubly linked list of pBranches
6740      will exist. The head of this list is stored in
6741      `the_pFile', which is the meta structure for all
6742      of the pCode. Look at the pic16_printCallTree function
6743      on how the pBranches are linked together.
6744
6745    */
6746   for(pb = the_pFile->pbHead; pb; pb = pb->next) {
6747     pCode *pc_fstart=NULL;
6748     for(pc = pb->pcHead; pc; pc = pc->next) {
6749       if(isPCF(pc)) {
6750         if (PCF(pc)->fname) {
6751
6752           if(STRCASECMP(PCF(pc)->fname, "_main") == 0) {
6753             //fprintf(stderr," found main \n");
6754             pb->cmemmap = NULL;  /* FIXME do we need to free ? */
6755             pb->dbName = 'M';
6756           }
6757
6758           pbr = Safe_calloc(1,sizeof(pBranch));
6759           pbr->pc = pc_fstart = pc;
6760           pbr->next = NULL;
6761
6762           the_pFile->functions = pic16_pBranchAppend(the_pFile->functions,pbr);
6763
6764           // Here's a better way of doing the same:
6765           addSet(&pb->function_entries, pc);
6766
6767         } else {
6768           // Found an exit point in a function, e.g. return
6769           // (Note, there may be more than one return per function)
6770           if(pc_fstart)
6771             pBranchLink(PCF(pc_fstart), PCF(pc));
6772
6773           addSet(&pb->function_exits, pc);
6774         }
6775       } else if(isCALL(pc)) {
6776         addSet(&pb->function_calls,pc);
6777       }
6778     }
6779   }
6780
6781
6782 #if 0
6783   /* This is not needed because currently all register used
6784    * by a function are stored in stack -- VR */
6785
6786   /* Re-allocate the registers so that there are no collisions
6787    * between local variables when one function call another */
6788
6789   // this is weird...
6790   //  pic16_deallocateAllRegs();
6791
6792   for(pb = the_pFile->pbHead; pb; pb = pb->next) {
6793     if(!pb->visited)
6794       register_usage(pb);
6795   }
6796 #endif
6797
6798 }
6799
6800 /*-----------------------------------------------------------------*/
6801 /* pic16_AnalyzepCode - parse the pCode that has been generated and form */
6802 /*                all of the logical connections.                  */
6803 /*                                                                 */
6804 /* Essentially what's done here is that the pCode flow is          */
6805 /* determined.                                                     */
6806 /*-----------------------------------------------------------------*/
6807
6808 void pic16_AnalyzepCode(char dbName)
6809 {
6810   pBlock *pb;
6811   int i,changes;
6812
6813   if(!the_pFile)
6814     return;
6815
6816   mergepBlocks('D');
6817
6818
6819   /* Phase 1 - Register allocation and peep hole optimization
6820    *
6821    * The first part of the analysis is to determine the registers
6822    * that are used in the pCode. Once that is done, the peep rules
6823    * are applied to the code. We continue to loop until no more
6824    * peep rule optimizations are found (or until we exceed the
6825    * MAX_PASSES threshold).
6826    *
6827    * When done, the required registers will be determined.
6828    *
6829    */
6830   i = 0;
6831   do {
6832
6833     DFPRINTF((stderr," Analyzing pCode: PASS #%d\n",i+1));
6834     //fprintf(stderr," Analyzing pCode: PASS #%d\n",i+1);
6835
6836     /* First, merge the labels with the instructions */
6837     for(pb = the_pFile->pbHead; pb; pb = pb->next) {
6838       if('*' == dbName || getpBlock_dbName(pb) == dbName) {
6839
6840         DFPRINTF((stderr," analyze and merging block %c\n",dbName));
6841         //fprintf(stderr," analyze and merging block %c\n",dbName);
6842         pic16_pBlockMergeLabels(pb);
6843         AnalyzepBlock(pb);
6844       } else {
6845         DFPRINTF((stderr," skipping block analysis dbName=%c blockname=%c\n",dbName,getpBlock_dbName));
6846       }
6847     }
6848
6849         if(!options.nopeep)
6850                 changes = OptimizepCode(dbName);
6851         else changes = 0;
6852
6853   } while(changes && (i++ < MAX_PASSES));
6854
6855   buildCallTree();
6856 }
6857
6858 /*-----------------------------------------------------------------*/
6859 /* ispCodeFunction - returns true if *pc is the pCode of a         */
6860 /*                   function                                      */
6861 /*-----------------------------------------------------------------*/
6862 static bool ispCodeFunction(pCode *pc)
6863 {
6864
6865   if(pc && pc->type == PC_FUNCTION && PCF(pc)->fname)
6866     return 1;
6867
6868   return 0;
6869 }
6870
6871 /*-----------------------------------------------------------------*/
6872 /* findFunction - Search for a function by name (given the name)   */
6873 /*                in the set of all functions that are in a pBlock */
6874 /* (note - I expect this to change because I'm planning to limit   */
6875 /*  pBlock's to just one function declaration                      */
6876 /*-----------------------------------------------------------------*/
6877 static pCode *findFunction(char *fname)
6878 {
6879   pBlock *pb;
6880   pCode *pc;
6881   if(!fname)
6882     return NULL;
6883
6884   for(pb = the_pFile->pbHead; pb; pb = pb->next) {
6885
6886     pc = setFirstItem(pb->function_entries);
6887     while(pc) {
6888
6889       if((pc->type == PC_FUNCTION) &&
6890          (PCF(pc)->fname) &&
6891          (strcmp(fname, PCF(pc)->fname)==0))
6892         return pc;
6893
6894       pc = setNextItem(pb->function_entries);
6895
6896     }
6897
6898   }
6899   return NULL;
6900 }
6901
6902 static void MarkUsedRegisters(set *regset)
6903 {
6904
6905   regs *r1,*r2;
6906
6907   for(r1=setFirstItem(regset); r1; r1=setNextItem(regset)) {
6908 //      fprintf(stderr, "marking register = %s\t", r1->name);
6909     r2 = pic16_regWithIdx(r1->rIdx);
6910 //      fprintf(stderr, "to register = %s\n", r2->name);
6911     r2->isFree = 0;
6912     r2->wasUsed = 1;
6913   }
6914 }
6915
6916 static void pBlockStats(FILE *of, pBlock *pb)
6917 {
6918
6919   pCode *pc;
6920   regs  *r;
6921
6922         if(!pic16_pcode_verbose)return;
6923
6924   fprintf(of,";***\n;  pBlock Stats: dbName = %c\n;***\n",getpBlock_dbName(pb));
6925
6926   // for now just print the first element of each set
6927   pc = setFirstItem(pb->function_entries);
6928   if(pc) {
6929     fprintf(of,";entry:  ");
6930     pc->print(of,pc);
6931   }
6932   pc = setFirstItem(pb->function_exits);
6933   if(pc) {
6934     fprintf(of,";has an exit\n");
6935     //pc->print(of,pc);
6936   }
6937
6938   pc = setFirstItem(pb->function_calls);
6939   if(pc) {
6940     fprintf(of,";functions called:\n");
6941
6942     while(pc) {
6943       if(pc->type == PC_OPCODE && PCI(pc)->op == POC_CALL) {
6944         fprintf(of,";   %s\n",pic16_get_op_from_instruction(PCI(pc)));
6945       }
6946       pc = setNextItem(pb->function_calls);
6947     }
6948   }
6949
6950   r = setFirstItem(pb->tregisters);
6951   if(r) {
6952     int n = elementsInSet(pb->tregisters);
6953
6954     fprintf(of,";%d compiler assigned register%c:\n",n, ( (n!=1) ? 's' : ' '));
6955
6956     while (r) {
6957       fprintf(of,";   %s\n",r->name);
6958       r = setNextItem(pb->tregisters);
6959     }
6960   }
6961 }
6962
6963 /*-----------------------------------------------------------------*/
6964 /*-----------------------------------------------------------------*/
6965 #if 0
6966 static void sequencepCode(void)
6967 {
6968   pBlock *pb;
6969   pCode *pc;
6970
6971
6972   for(pb = the_pFile->pbHead; pb; pb = pb->next) {
6973
6974     pb->seq = GpCodeSequenceNumber+1;
6975
6976     for( pc = pb->pcHead; pc; pc = pc->next)
6977       pc->seq = ++GpCodeSequenceNumber;
6978   }
6979
6980 }
6981 #endif
6982
6983 /*-----------------------------------------------------------------*/
6984 /*-----------------------------------------------------------------*/
6985 static set *register_usage(pBlock *pb)
6986 {
6987   pCode *pc,*pcn;
6988   set *registers=NULL;
6989   set *registersInCallPath = NULL;
6990
6991   /* check recursion */
6992
6993   pc = setFirstItem(pb->function_entries);
6994
6995   if(!pc)
6996     return registers;
6997
6998   pb->visited = 1;
6999
7000   if(pc->type != PC_FUNCTION)
7001     fprintf(stderr,"%s, first pc is not a function???\n",__FUNCTION__);
7002
7003   pc = setFirstItem(pb->function_calls);
7004   for( ; pc; pc = setNextItem(pb->function_calls)) {
7005
7006     if(pc->type == PC_OPCODE && PCI(pc)->op == POC_CALL) {
7007       char *dest = pic16_get_op_from_instruction(PCI(pc));
7008
7009       pcn = findFunction(dest);
7010       if(pcn)
7011         registersInCallPath = register_usage(pcn->pb);
7012     } else
7013       fprintf(stderr,"BUG? pCode isn't a POC_CALL %d\n",__LINE__);
7014
7015   }
7016
7017 #ifdef PCODE_DEBUG
7018   pBlockStats(stderr,pb);  // debug
7019 #endif
7020
7021   // Mark the registers in this block as used.
7022
7023   MarkUsedRegisters(pb->tregisters);
7024   if(registersInCallPath) {
7025     /* registers were used in the functions this pBlock has called */
7026     /* so now, we need to see if these collide with the ones we are */
7027     /* using here */
7028
7029     regs *r1,*r2, *newreg;
7030
7031     DFPRINTF((stderr,"comparing registers\n"));
7032
7033     r1 = setFirstItem(registersInCallPath);
7034     while(r1) {
7035
7036       r2 = setFirstItem(pb->tregisters);
7037
7038       while(r2 && (r1->type != REG_STK)) {
7039
7040         if(r2->rIdx == r1->rIdx) {
7041           newreg = pic16_findFreeReg(REG_GPR);
7042
7043
7044           if(!newreg) {
7045             DFPRINTF((stderr,"Bummer, no more registers.\n"));
7046             exit(1);
7047           }
7048
7049           DFPRINTF((stderr,"Cool found register collision nIdx=%d moving to %d\n",
7050                   r1->rIdx, newreg->rIdx));
7051           r2->rIdx = newreg->rIdx;
7052           //if(r2->name) free(r2->name);
7053           if(newreg->name)
7054             r2->name = Safe_strdup(newreg->name);
7055           else
7056             r2->name = NULL;
7057           newreg->isFree = 0;
7058           newreg->wasUsed = 1;
7059         }
7060         r2 = setNextItem(pb->tregisters);
7061       }
7062
7063       r1 = setNextItem(registersInCallPath);
7064     }
7065
7066     /* Collisions have been resolved. Now free the registers in the call path */
7067     r1 = setFirstItem(registersInCallPath);
7068     while(r1) {
7069       if(r1->type != REG_STK) {
7070         newreg = pic16_regWithIdx(r1->rIdx);
7071         newreg->isFree = 1;
7072       }
7073       r1 = setNextItem(registersInCallPath);
7074     }
7075
7076   }// else
7077   //    MarkUsedRegisters(pb->registers);
7078
7079   registers = unionSets(pb->tregisters, registersInCallPath, THROW_NONE);
7080 #ifdef PCODE_DEBUG
7081   if(registers)
7082     DFPRINTF((stderr,"returning regs\n"));
7083   else
7084     DFPRINTF((stderr,"not returning regs\n"));
7085
7086   DFPRINTF((stderr,"pBlock after register optim.\n"));
7087   pBlockStats(stderr,pb);  // debug
7088 #endif
7089
7090   return registers;
7091 }
7092
7093 /*-----------------------------------------------------------------*/
7094 /* pct2 - writes the call tree to a file                           */
7095 /*                                                                 */
7096 /*-----------------------------------------------------------------*/
7097 static void pct2(FILE *of,pBlock *pb,int indent)
7098 {
7099   pCode *pc,*pcn;
7100   int i;
7101   //  set *registersInCallPath = NULL;
7102
7103   if(!of)
7104     return;
7105
7106   if(indent > 10)
7107     return; //recursion ?
7108
7109   pc = setFirstItem(pb->function_entries);
7110
7111   if(!pc)
7112     return;
7113
7114   pb->visited = 0;
7115
7116   for(i=0;i<indent;i++)   // Indentation
7117     fputc(' ',of);
7118
7119   if(pc->type == PC_FUNCTION)
7120     fprintf(of,"%s\n",PCF(pc)->fname);
7121   else
7122     return;  // ???
7123
7124
7125   pc = setFirstItem(pb->function_calls);
7126   for( ; pc; pc = setNextItem(pb->function_calls)) {
7127
7128     if(pc->type == PC_OPCODE && PCI(pc)->op == POC_CALL) {
7129       char *dest = pic16_get_op_from_instruction(PCI(pc));
7130
7131       pcn = findFunction(dest);
7132       if(pcn)
7133         pct2(of,pcn->pb,indent+1);
7134     } else
7135       fprintf(of,"BUG? pCode isn't a POC_CALL %d\n",__LINE__);
7136
7137   }
7138
7139
7140 }
7141
7142
7143 /*-----------------------------------------------------------------*/
7144 /* pic16_printCallTree - writes the call tree to a file                  */
7145 /*                                                                 */
7146 /*-----------------------------------------------------------------*/
7147
7148 void pic16_printCallTree(FILE *of)
7149 {
7150   pBranch *pbr;
7151   pBlock  *pb;
7152   pCode   *pc;
7153
7154   if(!the_pFile)
7155     return;
7156
7157   if(!of)
7158     of = stderr;
7159
7160   fprintf(of, "\npBlock statistics\n");
7161   for(pb = the_pFile->pbHead; pb;  pb = pb->next )
7162     pBlockStats(of,pb);
7163
7164
7165
7166   fprintf(of,"Call Tree\n");
7167   pbr = the_pFile->functions;
7168   while(pbr) {
7169     if(pbr->pc) {
7170       pc = pbr->pc;
7171       if(!ispCodeFunction(pc))
7172         fprintf(of,"bug in call tree");
7173
7174
7175       fprintf(of,"Function: %s\n", PCF(pc)->fname);
7176
7177       while(pc->next && !ispCodeFunction(pc->next)) {
7178         pc = pc->next;
7179         if(pc->type == PC_OPCODE && PCI(pc)->op == POC_CALL)
7180           fprintf(of,"\t%s\n",pic16_get_op_from_instruction(PCI(pc)));
7181       }
7182     }
7183
7184     pbr = pbr->next;
7185   }
7186
7187
7188   fprintf(of,"\n**************\n\na better call tree\n");
7189   for(pb = the_pFile->pbHead; pb; pb = pb->next) {
7190     if(pb->visited)
7191       pct2(of,pb,0);
7192   }
7193
7194   for(pb = the_pFile->pbHead; pb; pb = pb->next) {
7195     fprintf(of,"block dbname: %c\n", getpBlock_dbName(pb));
7196   }
7197 }
7198
7199
7200
7201 /*-----------------------------------------------------------------*/
7202 /*                                                                 */
7203 /*-----------------------------------------------------------------*/
7204
7205 static void InlineFunction(pBlock *pb)
7206 {
7207   pCode *pc;
7208   pCode *pc_call;
7209
7210   if(!pb)
7211     return;
7212
7213   pc = setFirstItem(pb->function_calls);
7214
7215   for( ; pc; pc = setNextItem(pb->function_calls)) {
7216
7217     if(isCALL(pc)) {
7218       pCode *pcn = findFunction(pic16_get_op_from_instruction(PCI(pc)));
7219       pCode *pct;
7220       pCode *pce;
7221
7222       pBranch *pbr;
7223
7224       if(pcn && isPCF(pcn) && (PCF(pcn)->ncalled == 0)) {               /* change 0 to 1 to enable inlining */
7225
7226         //fprintf(stderr,"Cool can inline:\n");
7227         //pcn->print(stderr,pcn);
7228
7229         //fprintf(stderr,"recursive call Inline\n");
7230         InlineFunction(pcn->pb);
7231         //fprintf(stderr,"return from recursive call Inline\n");
7232
7233         /*
7234           At this point, *pc points to a CALL mnemonic, and
7235           *pcn points to the function that is being called.
7236
7237           To in-line this call, we need to remove the CALL
7238           and RETURN(s), and link the function pCode in with
7239           the CALLee pCode.
7240
7241         */
7242
7243
7244         /* Remove the CALL */
7245         pc_call = pc;
7246         pc = pc->prev;
7247
7248         /* remove callee pBlock from the pBlock linked list */
7249         removepBlock(pcn->pb);
7250
7251         pce = pcn;
7252         while(pce) {
7253           pce->pb = pb;
7254           pce = pce->next;
7255         }
7256
7257         /* Remove the Function pCode */
7258         pct = pic16_findNextInstruction(pcn->next);
7259
7260         /* Link the function with the callee */
7261         pc->next = pcn->next;
7262         pcn->next->prev = pc;
7263
7264         /* Convert the function name into a label */
7265
7266         pbr = Safe_calloc(1,sizeof(pBranch));
7267         pbr->pc = pic16_newpCodeLabel(PCF(pcn)->fname, -1);
7268         pbr->next = NULL;
7269         PCI(pct)->label = pic16_pBranchAppend(PCI(pct)->label,pbr);
7270         PCI(pct)->label = pic16_pBranchAppend(PCI(pct)->label,PCI(pc_call)->label);
7271
7272         /* turn all of the return's except the last into goto's */
7273         /* check case for 2 instruction pBlocks */
7274         pce = pic16_findNextInstruction(pcn->next);
7275         while(pce) {
7276           pCode *pce_next = pic16_findNextInstruction(pce->next);
7277
7278           if(pce_next == NULL) {
7279             /* found the last return */
7280             pCode *pc_call_next =  pic16_findNextInstruction(pc_call->next);
7281
7282             //fprintf(stderr,"found last return\n");
7283             //pce->print(stderr,pce);
7284             pce->prev->next = pc_call->next;
7285             pc_call->next->prev = pce->prev;
7286             PCI(pc_call_next)->label = pic16_pBranchAppend(PCI(pc_call_next)->label,
7287                                                       PCI(pce)->label);
7288           }
7289
7290           pce = pce_next;
7291         }
7292
7293
7294       }
7295     } else
7296       fprintf(stderr,"BUG? pCode isn't a POC_CALL %d\n",__LINE__);
7297
7298   }
7299
7300 }
7301
7302 /*-----------------------------------------------------------------*/
7303 /*                                                                 */
7304 /*-----------------------------------------------------------------*/
7305
7306 void pic16_InlinepCode(void)
7307 {
7308
7309   pBlock  *pb;
7310   pCode   *pc;
7311
7312   if(!the_pFile)
7313     return;
7314
7315   if(!functionInlining)
7316     return;
7317
7318   /* Loop through all of the function definitions and count the
7319    * number of times each one is called */
7320   //fprintf(stderr,"inlining %d\n",__LINE__);
7321
7322   for(pb = the_pFile->pbHead; pb; pb = pb->next) {
7323
7324     pc = setFirstItem(pb->function_calls);
7325
7326     for( ; pc; pc = setNextItem(pb->function_calls)) {
7327
7328       if(isCALL(pc)) {
7329         pCode *pcn = findFunction(pic16_get_op_from_instruction(PCI(pc)));
7330         if(pcn && isPCF(pcn)) {
7331           PCF(pcn)->ncalled++;
7332         }
7333       } else
7334         fprintf(stderr,"BUG? pCode isn't a POC_CALL %d\n",__LINE__);
7335
7336     }
7337   }
7338
7339   //fprintf(stderr,"inlining %d\n",__LINE__);
7340
7341   /* Now, Loop through the function definitions again, but this
7342    * time inline those functions that have only been called once. */
7343
7344   InlineFunction(the_pFile->pbHead);
7345   //fprintf(stderr,"inlining %d\n",__LINE__);
7346
7347   for(pb = the_pFile->pbHead; pb; pb = pb->next)
7348     unBuildFlow(pb);
7349
7350 }
7351
7352 char *pic_optype_names[]={
7353         "PO_NONE",         // No operand e.g. NOP
7354         "PO_W",              // The working register (as a destination)
7355         "PO_WREG",           // The working register (as a file register)
7356         "PO_STATUS",         // The 'STATUS' register
7357         "PO_BSR",            // The 'BSR' register
7358         "PO_FSR0",           // The "file select register" (in PIC18 family it's one
7359                              // of three)
7360         "PO_INDF0",          // The Indirect register
7361         "PO_INTCON",         // Interrupt Control register
7362         "PO_GPR_REGISTER",   // A general purpose register
7363         "PO_GPR_BIT",        // A bit of a general purpose register
7364         "PO_GPR_TEMP",       // A general purpose temporary register
7365         "PO_SFR_REGISTER",   // A special function register (e.g. PORTA)
7366         "PO_PCL",            // Program counter Low register
7367         "PO_PCLATH",         // Program counter Latch high register
7368         "PO_PCLATU",         // Program counter Latch upper register
7369         "PO_PRODL",          // Product Register Low
7370         "PO_PRODH",          // Product Register High
7371         "PO_LITERAL",        // A constant
7372         "PO_REL_ADDR",       // A relative address
7373         "PO_IMMEDIATE",      //  (8051 legacy)
7374         "PO_DIR",            // Direct memory (8051 legacy)
7375         "PO_CRY",            // bit memory (8051 legacy)
7376         "PO_BIT",            // bit operand.
7377         "PO_STR",            //  (8051 legacy)
7378         "PO_LABEL",
7379         "PO_WILD"            // Wild card operand in peep optimizer
7380 };
7381
7382
7383 char *dumpPicOptype(PIC_OPTYPE type)
7384 {
7385         return (pic_optype_names[ type ]);
7386 }