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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
3650   pcl->label = NULL;
3651   if(key>0) {
3652     sprintf(s,"_%05d_DS_",key);
3653   } else
3654     s = name;
3655
3656   if(s)
3657     pcl->label = Safe_strdup(s);
3658
3659 //  if(pic16_pcode_verbose)
3660 //      fprintf(stderr, "%s:%d label name: %s\n", __FILE__, __LINE__, pcl->label);
3661
3662
3663   return ( (pCode *)pcl);
3664
3665 }
3666
3667
3668 /*-----------------------------------------------------------------*/
3669 /* newpBlock - create and return a pointer to a new pBlock         */
3670 /*-----------------------------------------------------------------*/
3671 static pBlock *newpBlock(void)
3672 {
3673
3674   pBlock *PpB;
3675
3676   PpB = Safe_calloc(1,sizeof(pBlock) );
3677   PpB->next = PpB->prev = NULL;
3678
3679   PpB->function_entries = PpB->function_exits = PpB->function_calls = NULL;
3680   PpB->tregisters = NULL;
3681   PpB->visited = 0;
3682   PpB->FlowTree = NULL;
3683
3684   return PpB;
3685
3686 }
3687
3688 /*-----------------------------------------------------------------*/
3689 /* pic16_newpCodeChain - create a new chain of pCodes                    */
3690 /*-----------------------------------------------------------------*
3691  *
3692  *  This function will create a new pBlock and the pointer to the
3693  *  pCode that is passed in will be the first pCode in the block.
3694  *-----------------------------------------------------------------*/
3695
3696
3697 pBlock *pic16_newpCodeChain(memmap *cm,char c, pCode *pc)
3698 {
3699
3700   pBlock *pB  = newpBlock();
3701
3702   pB->pcHead  = pB->pcTail = pc;
3703   pB->cmemmap = cm;
3704   pB->dbName  = c;
3705
3706   return pB;
3707 }
3708
3709 /*-----------------------------------------------------------------*/
3710 /* pic16_newpCodeOpLabel - Create a new label given the key              */
3711 /*  Note, a negative key means that the label is part of wild card */
3712 /*  (and hence a wild card label) used in the pCodePeep            */
3713 /*   optimizations).                                               */
3714 /*-----------------------------------------------------------------*/
3715
3716 pCodeOp *pic16_newpCodeOpLabel(char *name, int key)
3717 {
3718   char *s=NULL;
3719   static int label_key=-1;
3720
3721   pCodeOp *pcop;
3722
3723   pcop = Safe_calloc(1,sizeof(pCodeOpLabel) );
3724   pcop->type = PO_LABEL;
3725
3726   pcop->name = NULL;
3727
3728   if(key>0)
3729     sprintf(s=buffer,"_%05d_DS_",key);
3730   else
3731     s = name, key = label_key--;
3732
3733   if(s)
3734     pcop->name = Safe_strdup(s);
3735
3736   ((pCodeOpLabel *)pcop)->key = key;
3737
3738   //fprintf(stderr,"pic16_newpCodeOpLabel: key=%d, name=%s\n",key,((s)?s:""));
3739   return pcop;
3740 }
3741
3742 /*-----------------------------------------------------------------*/
3743 /*-----------------------------------------------------------------*/
3744 pCodeOp *pic16_newpCodeOpLit(int lit)
3745 {
3746   char *s = buffer;
3747   pCodeOp *pcop;
3748
3749
3750   pcop = Safe_calloc(1,sizeof(pCodeOpLit) );
3751   pcop->type = PO_LITERAL;
3752
3753   pcop->name = NULL;
3754   if(lit>=0) {
3755     sprintf(s,"0x%02x",lit);
3756     if(s)
3757       pcop->name = Safe_strdup(s);
3758   }
3759
3760   ((pCodeOpLit *)pcop)->lit = lit;
3761
3762   return pcop;
3763 }
3764
3765 /*-----------------------------------------------------------------*/
3766 /*-----------------------------------------------------------------*/
3767 pCodeOp *pic16_newpCodeOpLit2(int lit, pCodeOp *arg2)
3768 {
3769   char *s = buffer, tbuf[256], *tb=tbuf;
3770   pCodeOp *pcop;
3771
3772
3773   tb = pic16_get_op(arg2, NULL, 0);
3774   pcop = Safe_calloc(1,sizeof(pCodeOpLit2) );
3775   pcop->type = PO_LITERAL;
3776
3777   pcop->name = NULL;
3778   if(lit>=0) {
3779     sprintf(s,"0x%02x, %s",lit, tb);
3780     if(s)
3781       pcop->name = Safe_strdup(s);
3782   }
3783
3784   ((pCodeOpLit2 *)pcop)->lit = lit;
3785   ((pCodeOpLit2 *)pcop)->arg2 = arg2;
3786
3787   return pcop;
3788 }
3789
3790 /*-----------------------------------------------------------------*/
3791 /*-----------------------------------------------------------------*/
3792 pCodeOp *pic16_newpCodeOpImmd(char *name, int offset, int index, int code_space)
3793 {
3794   pCodeOp *pcop;
3795
3796         pcop = Safe_calloc(1,sizeof(pCodeOpImmd) );
3797         pcop->type = PO_IMMEDIATE;
3798         if(name) {
3799                 regs *r = pic16_dirregWithName(name);
3800                 pcop->name = Safe_strdup(name);
3801                 PCOI(pcop)->r = r;
3802
3803                 if(r) {
3804 //                      fprintf(stderr, "%s:%d %s reg %s exists\n",__FILE__, __LINE__, __FUNCTION__, name);
3805                         PCOI(pcop)->rIdx = r->rIdx;
3806                 } else {
3807 //                      fprintf(stderr, "%s:%d %s reg %s doesn't exist\n",
3808 //                              __FILE__, __LINE__, __FUNCTION__, name);
3809                         PCOI(pcop)->rIdx = -1;
3810                 }
3811 //                      fprintf(stderr,"%s %s %d\n",__FUNCTION__,name,offset);
3812         } else {
3813                 pcop->name = NULL;
3814         }
3815
3816         PCOI(pcop)->index = index;
3817         PCOI(pcop)->offset = offset;
3818         PCOI(pcop)->_const = code_space;
3819
3820   return pcop;
3821 }
3822
3823 /*-----------------------------------------------------------------*/
3824 /*-----------------------------------------------------------------*/
3825 pCodeOp *pic16_newpCodeOpWild(int id, pCodeWildBlock *pcwb, pCodeOp *subtype)
3826 {
3827   char *s = buffer;
3828   pCodeOp *pcop;
3829
3830
3831   if(!pcwb || !subtype) {
3832     fprintf(stderr, "Wild opcode declaration error: %s-%d\n",__FILE__,__LINE__);
3833     exit(1);
3834   }
3835
3836   pcop = Safe_calloc(1,sizeof(pCodeOpWild));
3837   pcop->type = PO_WILD;
3838   sprintf(s,"%%%d",id);
3839   pcop->name = Safe_strdup(s);
3840
3841   PCOW(pcop)->id = id;
3842   PCOW(pcop)->pcwb = pcwb;
3843   PCOW(pcop)->subtype = subtype;
3844   PCOW(pcop)->matched = NULL;
3845
3846   return pcop;
3847 }
3848
3849 /*-----------------------------------------------------------------*/
3850 /*-----------------------------------------------------------------*/
3851 pCodeOp *pic16_newpCodeOpWild2(int id, int id2, pCodeWildBlock *pcwb, pCodeOp *subtype, pCodeOp *subtype2)
3852 {
3853   char *s = buffer;
3854   pCodeOp *pcop;
3855
3856
3857   if(!pcwb || !subtype || !subtype2) {
3858     fprintf(stderr, "Wild opcode declaration error: %s-%d\n",__FILE__,__LINE__);
3859     exit(1);
3860   }
3861
3862   pcop = Safe_calloc(1,sizeof(pCodeOpWild));
3863   pcop->type = PO_WILD;
3864   sprintf(s,"%%%d",id);
3865   pcop->name = Safe_strdup(s);
3866
3867   PCOW(pcop)->id = id;
3868   PCOW(pcop)->pcwb = pcwb;
3869   PCOW(pcop)->subtype = subtype;
3870   PCOW(pcop)->matched = NULL;
3871
3872   PCOW(pcop)->id2 = id2;
3873   PCOW(pcop)->subtype2 = subtype2;
3874
3875   return pcop;
3876 }
3877
3878 /*-----------------------------------------------------------------*/
3879 /*-----------------------------------------------------------------*/
3880 pCodeOp *pic16_newpCodeOpBit(char *s, int bit, int inBitSpace)
3881 {
3882   pCodeOp *pcop;
3883
3884   pcop = Safe_calloc(1,sizeof(pCodeOpRegBit) );
3885   pcop->type = PO_GPR_BIT;
3886   if(s)
3887     pcop->name = Safe_strdup(s);
3888   else
3889     pcop->name = NULL;
3890
3891   PCORB(pcop)->bit = bit;
3892   PCORB(pcop)->inBitSpace = inBitSpace;
3893
3894   /* pCodeOpBit is derived from pCodeOpReg. We need to init this too */
3895   PCOR(pcop)->r = NULL;
3896   PCOR(pcop)->rIdx = 0;
3897   return pcop;
3898 }
3899
3900 /*-----------------------------------------------------------------*
3901  * pCodeOp *pic16_newpCodeOpReg(int rIdx) - allocate a new register
3902  *
3903  * If rIdx >=0 then a specific register from the set of registers
3904  * will be selected. If rIdx <0, then a new register will be searched
3905  * for.
3906  *-----------------------------------------------------------------*/
3907
3908 pCodeOp *pic16_newpCodeOpReg(int rIdx)
3909 {
3910   pCodeOp *pcop;
3911
3912   pcop = Safe_calloc(1,sizeof(pCodeOpReg) );
3913
3914   pcop->name = NULL;
3915
3916   if(rIdx >= 0) {
3917     PCOR(pcop)->rIdx = rIdx;
3918     PCOR(pcop)->r = pic16_regWithIdx(rIdx);
3919   } else {
3920     PCOR(pcop)->r = pic16_findFreeReg(REG_GPR);
3921
3922     if(PCOR(pcop)->r)
3923       PCOR(pcop)->rIdx = PCOR(pcop)->r->rIdx;
3924     else {
3925         fprintf(stderr, "%s:%d Could not find a free GPR register\n",
3926                 __FUNCTION__, __LINE__);
3927         exit(-1);
3928     }
3929   }
3930
3931   pcop->type = PCOR(pcop)->r->pc_type;
3932
3933   return pcop;
3934 }
3935
3936 pCodeOp *pic16_newpCodeOpRegFromStr(char *name)
3937 {
3938   pCodeOp *pcop;
3939   regs *r;
3940
3941         pcop = Safe_calloc(1,sizeof(pCodeOpReg) );
3942         PCOR(pcop)->r = r = pic16_allocRegByName(name, 1, NULL);
3943         PCOR(pcop)->rIdx = PCOR(pcop)->r->rIdx;
3944         pcop->type = PCOR(pcop)->r->pc_type;
3945         pcop->name = PCOR(pcop)->r->name;
3946
3947 //      if(pic16_pcode_verbose) {
3948 //              fprintf(stderr, "%s:%d %s allocates register %s rIdx:0x%02x\n",
3949 //                      __FILE__, __LINE__, __FUNCTION__, r->name, r->rIdx);
3950 //      }
3951
3952   return pcop;
3953 }
3954
3955 /*-----------------------------------------------------------------*/
3956 /*-----------------------------------------------------------------*/
3957
3958 pCodeOp *pic16_newpCodeOp(char *name, PIC_OPTYPE type)
3959 {
3960   pCodeOp *pcop;
3961
3962   switch(type) {
3963   case PO_BIT:
3964   case PO_GPR_BIT:
3965     pcop = pic16_newpCodeOpBit(name, -1,0);
3966     break;
3967
3968   case PO_LITERAL:
3969     pcop = pic16_newpCodeOpLit(-1);
3970     break;
3971
3972   case PO_LABEL:
3973     pcop = pic16_newpCodeOpLabel(NULL,-1);
3974     break;
3975   case PO_GPR_TEMP:
3976     pcop = pic16_newpCodeOpReg(-1);
3977     break;
3978
3979   case PO_GPR_REGISTER:
3980     if(name)
3981       pcop = pic16_newpCodeOpRegFromStr(name);
3982     else
3983       pcop = pic16_newpCodeOpReg(-1);
3984     break;
3985
3986   default:
3987     pcop = Safe_calloc(1,sizeof(pCodeOp) );
3988     pcop->type = type;
3989     if(name)
3990       pcop->name = Safe_strdup(name);
3991     else
3992       pcop->name = NULL;
3993   }
3994
3995   return pcop;
3996 }
3997
3998
3999 typedef struct DBdata
4000   {
4001     int count;
4002     char buffer[256];
4003   } DBdata;
4004
4005 struct DBdata DBd;
4006 static int DBd_init = -1;
4007 static int DB_prev = -1;
4008
4009 /*-----------------------------------------------------------------*/
4010 /*    Add "DB" directives to a pBlock                              */
4011 /*-----------------------------------------------------------------*/
4012 void pic16_emitDB(pBlock *pb, char c)
4013 {
4014   int l;
4015   char *frm, tbuf[8];;
4016   char frm_alnum[]="%c";
4017   char frm_other[]="0x%02x";
4018
4019
4020         if (DBd_init<0) {
4021          // we need to initialize
4022                 DBd_init = 0;
4023                 DBd.count = 0;
4024                 DBd.buffer[0] = '\0';
4025         }
4026
4027         l = strlen(DBd.buffer);
4028
4029         if(isprint( c ))frm = frm_alnum;
4030         else frm = frm_other;
4031         sprintf(tbuf, frm, c & 0xff);
4032
4033         if(!isprint(DB_prev)) {
4034                 if(isprint(c))
4035                         if(DBd.count)strcat(DBd.buffer, ", \"");
4036                         else strcat(DBd.buffer, "\"");
4037                 else if(DBd.count) strcat(DBd.buffer, ", ");
4038         } else
4039                 if(!isprint(c))strcat(DBd.buffer, "\", ");
4040
4041         strcat(DBd.buffer, tbuf);
4042
4043 #if 0
4044         if (DBd.count>0) {
4045                 sprintf(DBd.buffer+l,", 0x%02x", c & 0xff);
4046         } else {
4047                 sprintf(DBd.buffer,"0x%02x", c & 0xff);
4048         }
4049 #endif
4050
4051         DBd.count++;
4052         DB_prev = c;
4053
4054         if (DBd.count>=16) {
4055                 if(isprint(c))strcat(DBd.buffer, "\"");
4056                 pic16_addpCode2pBlock(pb,pic16_newpCodeAsmDir("DB", "%s", DBd.buffer));
4057                 DBd.count = 0;
4058                 DBd.buffer[0] = '\0';
4059                 DB_prev = 0;
4060         }
4061 }
4062
4063 /*-----------------------------------------------------------------*/
4064 /*    Flush pending "DB" data to a pBlock                          */
4065 /*-----------------------------------------------------------------*/
4066 void pic16_flushDB(pBlock *pb)
4067 {
4068   if (DBd.count>0)
4069     {
4070        if(isprint(DB_prev))strcat(DBd.buffer, "\"");
4071        pic16_addpCode2pBlock(pb,pic16_newpCodeAsmDir("DB", "%s", DBd.buffer));
4072        DBd.count = 0;
4073        DBd.buffer[0] = '\0';
4074     }
4075 }
4076
4077 /*-----------------------------------------------------------------*/
4078 /*-----------------------------------------------------------------*/
4079 void pic16_pCodeConstString(char *name, char *value)
4080 {
4081   pBlock *pb;
4082
4083   //  fprintf(stderr, " %s  %s  %s\n",__FUNCTION__,name,value);
4084
4085   if(!name || !value)
4086     return;
4087
4088   pb = pic16_newpCodeChain(NULL, 'P',pic16_newpCodeCharP("; Starting pCode block"));
4089
4090   pic16_addpBlock(pb);
4091
4092   sprintf(buffer,"; %s = %s",name,value);
4093
4094   pic16_addpCode2pBlock(pb,pic16_newpCodeCharP(buffer));
4095   pic16_addpCode2pBlock(pb,pic16_newpCodeLabel(name,-1));
4096
4097   do {
4098         pic16_emitDB(pb, *value);
4099   }while (*value++);
4100   pic16_flushDB(pb);
4101 }
4102
4103 /*-----------------------------------------------------------------*/
4104 /*-----------------------------------------------------------------*/
4105 #if 0
4106 static void pCodeReadCodeTable(void)
4107 {
4108   pBlock *pb;
4109
4110   fprintf(stderr, " %s\n",__FUNCTION__);
4111
4112   pb = pic16_newpCodeChain(NULL, 'P',pic16_newpCodeCharP("; Starting pCode block"));
4113
4114   pic16_addpBlock(pb);
4115
4116   pic16_addpCode2pBlock(pb,pic16_newpCodeCharP("; ReadCodeTable - built in function"));
4117   pic16_addpCode2pBlock(pb,pic16_newpCodeCharP("; Inputs: temp1,temp2 = code pointer"));
4118   pic16_addpCode2pBlock(pb,pic16_newpCodeCharP("; Outpus: W (from RETLW at temp2:temp1)"));
4119   pic16_addpCode2pBlock(pb,pic16_newpCodeLabel("ReadCodeTable:",-1));
4120
4121   pic16_addpCode2pBlock(pb,pic16_newpCode(POC_MOVFW,pic16_newpCodeOpRegFromStr("temp2")));
4122   pic16_addpCode2pBlock(pb,pic16_newpCode(POC_MOVWF,pic16_newpCodeOpRegFromStr("PCLATH")));
4123   pic16_addpCode2pBlock(pb,pic16_newpCode(POC_MOVFW,pic16_newpCodeOpRegFromStr("temp1")));
4124   pic16_addpCode2pBlock(pb,pic16_newpCode(POC_MOVWF,pic16_newpCodeOpRegFromStr("PCL")));
4125
4126
4127 }
4128 #endif
4129 /*-----------------------------------------------------------------*/
4130 /* pic16_addpCode2pBlock - place the pCode into the pBlock linked list   */
4131 /*-----------------------------------------------------------------*/
4132 void pic16_addpCode2pBlock(pBlock *pb, pCode *pc)
4133 {
4134
4135   if(!pc)
4136     return;
4137
4138   if(!pb->pcHead) {
4139     /* If this is the first pcode to be added to a block that
4140      * was initialized with a NULL pcode, then go ahead and
4141      * make this pcode the head and tail */
4142     pb->pcHead  = pb->pcTail = pc;
4143   } else {
4144     //    if(pb->pcTail)
4145     pb->pcTail->next = pc;
4146
4147     pc->prev = pb->pcTail;
4148     pc->pb = pb;
4149
4150     pb->pcTail = pc;
4151   }
4152 }
4153
4154 /*-----------------------------------------------------------------*/
4155 /* pic16_addpBlock - place a pBlock into the pFile                 */
4156 /*-----------------------------------------------------------------*/
4157 void pic16_addpBlock(pBlock *pb)
4158 {
4159   // fprintf(stderr," Adding pBlock: dbName =%c\n",getpBlock_dbName(pb));
4160
4161   if(!the_pFile) {
4162     /* First time called, we'll pass through here. */
4163     //_ALLOC(the_pFile,sizeof(pFile));
4164     the_pFile = Safe_calloc(1,sizeof(pFile));
4165     the_pFile->pbHead = the_pFile->pbTail = pb;
4166     the_pFile->functions = NULL;
4167     return;
4168   }
4169
4170   the_pFile->pbTail->next = pb;
4171   pb->prev = the_pFile->pbTail;
4172   pb->next = NULL;
4173   the_pFile->pbTail = pb;
4174 }
4175
4176 /*-----------------------------------------------------------------*/
4177 /* removepBlock - remove a pBlock from the pFile                   */
4178 /*-----------------------------------------------------------------*/
4179 static void removepBlock(pBlock *pb)
4180 {
4181   pBlock *pbs;
4182
4183   if(!the_pFile)
4184     return;
4185
4186
4187   //fprintf(stderr," Removing pBlock: dbName =%c\n",getpBlock_dbName(pb));
4188
4189   for(pbs = the_pFile->pbHead; pbs; pbs = pbs->next) {
4190     if(pbs == pb) {
4191
4192       if(pbs == the_pFile->pbHead)
4193         the_pFile->pbHead = pbs->next;
4194
4195       if (pbs == the_pFile->pbTail)
4196         the_pFile->pbTail = pbs->prev;
4197
4198       if(pbs->next)
4199         pbs->next->prev = pbs->prev;
4200
4201       if(pbs->prev)
4202         pbs->prev->next = pbs->next;
4203
4204       return;
4205
4206     }
4207   }
4208
4209   fprintf(stderr, "Warning: call to %s:%s didn't find pBlock\n",__FILE__,__FUNCTION__);
4210
4211 }
4212
4213 /*-----------------------------------------------------------------*/
4214 /* printpCode - write the contents of a pCode to a file            */
4215 /*-----------------------------------------------------------------*/
4216 static void printpCode(FILE *of, pCode *pc)
4217 {
4218
4219   if(!pc || !of)
4220     return;
4221
4222   if(pc->print) {
4223     pc->print(of,pc);
4224     return;
4225   }
4226
4227   fprintf(of,"warning - unable to print pCode\n");
4228 }
4229
4230 /*-----------------------------------------------------------------*/
4231 /* pic16_printpBlock - write the contents of a pBlock to a file    */
4232 /*-----------------------------------------------------------------*/
4233 void pic16_printpBlock(FILE *of, pBlock *pb)
4234 {
4235   pCode *pc;
4236
4237         if(!pb)return;
4238
4239         if(!of)of=stderr;
4240
4241         for(pc = pb->pcHead; pc; pc = pc->next) {
4242                 if(isPCF(pc) && PCF(pc)->fname) {
4243                         fprintf(of, "S_%s_%s\tcode", PCF(pc)->modname, PCF(pc)->fname);
4244                         if(pb->dbName == 'A') {
4245                           absSym *ab;
4246                                 for(ab=setFirstItem(absSymSet); ab; ab=setNextItem(absSymSet)) {
4247                                         if(!strcmp(ab->name, PCF(pc)->fname)) {
4248                                                 fprintf(of, "\t0X%06X", ab->address);
4249                                                 break;
4250                                         }
4251                                 }
4252                         }
4253                         fprintf(of, "\n");
4254                 }
4255                 printpCode(of,pc);
4256         }
4257 }
4258
4259 /*-----------------------------------------------------------------*/
4260 /*                                                                 */
4261 /*       pCode processing                                          */
4262 /*                                                                 */
4263 /*                                                                 */
4264 /*                                                                 */
4265 /*-----------------------------------------------------------------*/
4266
4267 void pic16_unlinkpCode(pCode *pc)
4268 {
4269
4270
4271   if(pc) {
4272 #ifdef PCODE_DEBUG
4273     fprintf(stderr,"Unlinking: ");
4274     printpCode(stderr, pc);
4275 #endif
4276     if(pc->prev)
4277       pc->prev->next = pc->next;
4278     if(pc->next)
4279       pc->next->prev = pc->prev;
4280
4281     pc->prev = pc->next = NULL;
4282   }
4283 }
4284
4285 /*-----------------------------------------------------------------*/
4286 /*-----------------------------------------------------------------*/
4287
4288 static void genericDestruct(pCode *pc)
4289 {
4290
4291   pic16_unlinkpCode(pc);
4292
4293   if(isPCI(pc)) {
4294     /* For instructions, tell the register (if there's one used)
4295      * that it's no longer needed */
4296     regs *reg = pic16_getRegFromInstruction(pc);
4297     if(reg)
4298       deleteSetItem (&(reg->reglives.usedpCodes),pc);
4299
4300         if(PCI(pc)->is2MemOp) {
4301                 reg = pic16_getRegFromInstruction2(pc);
4302                 if(reg)
4303                         deleteSetItem(&(reg->reglives.usedpCodes), pc);
4304         }
4305   }
4306
4307   /* Instead of deleting the memory used by this pCode, mark
4308    * the object as bad so that if there's a pointer to this pCode
4309    * dangling around somewhere then (hopefully) when the type is
4310    * checked we'll catch it.
4311    */
4312
4313   pc->type = PC_BAD;
4314
4315   pic16_addpCode2pBlock(pb_dead_pcodes, pc);
4316
4317   //free(pc);
4318
4319 }
4320
4321
4322
4323 /*-----------------------------------------------------------------*/
4324 /*-----------------------------------------------------------------*/
4325 /* modifiers for constant immediate */
4326 const char *immdmod[3]={"LOW", "HIGH", "UPPER"};
4327
4328 char *pic16_get_op(pCodeOp *pcop,char *buffer, size_t size)
4329 {
4330   regs *r;
4331   static char b[50];
4332   char *s;
4333   int use_buffer = 1;    // copy the string to the passed buffer pointer
4334
4335         if(!buffer) {
4336                 buffer = b;
4337                 size = sizeof(b);
4338                 use_buffer = 0;     // Don't bother copying the string to the buffer.
4339         }
4340
4341         if(pcop) {
4342                 switch(pcop->type) {
4343                         case PO_PRODL:
4344                         case PO_PRODH:
4345                         case PO_INDF0:
4346                         case PO_FSR0:
4347                                 if(use_buffer) {
4348                                         SAFE_snprintf(&buffer,&size,"%s",PCOR(pcop)->r->name);
4349                                         return buffer;
4350                                 }
4351                                 return PCOR(pcop)->r->name;
4352                                 break;
4353                         case PO_GPR_TEMP:
4354                                 r = pic16_regWithIdx(PCOR(pcop)->r->rIdx);
4355                                 if(use_buffer) {
4356                                         SAFE_snprintf(&buffer,&size,"%s",r->name);
4357                                         return buffer;
4358                                 }
4359                                 return r->name;
4360
4361                         case PO_IMMEDIATE:
4362                                 s = buffer;
4363                                 if(PCOI(pcop)->offset && PCOI(pcop)->offset<4) {
4364                                         if(PCOI(pcop)->index) {
4365                                                 SAFE_snprintf(&s,&size, "%s(%s + %d)",
4366                                                         immdmod[ PCOI(pcop)->offset ],
4367                                                         pcop->name,
4368                                                         PCOI(pcop)->index);
4369                                         } else {
4370                                                 SAFE_snprintf(&s,&size,"%s(%s)",
4371                                                         immdmod[ PCOI(pcop)->offset ],
4372                                                         pcop->name);
4373                                         }
4374                                 } else {
4375                                         if(PCOI(pcop)->index) {
4376                                                 SAFE_snprintf(&s,&size, "%s(%s + %d)",
4377                                                         immdmod[ 0 ],
4378                                                         pcop->name,
4379                                                         PCOI(pcop)->index);
4380                                         } else {
4381                                                 SAFE_snprintf(&s,&size, "%s(%s)",
4382                                                         immdmod[ 0 ],
4383                                                         pcop->name);
4384                                         }
4385                                 }
4386                                 return buffer;
4387
4388                         case PO_DIR:
4389                                 s = buffer;
4390 //                              size = sizeof(buffer);
4391                                 if( PCOR(pcop)->instance) {
4392                                         SAFE_snprintf(&s,&size,"(%s + %d)",
4393                                                 pcop->name,
4394                                                 PCOR(pcop)->instance );
4395                                 } else {
4396                                         SAFE_snprintf(&s,&size,"%s",pcop->name);
4397                                 }
4398                                 return buffer;
4399
4400                         default:
4401                                 if(pcop->name) {
4402                                         if(use_buffer) {
4403                                                 SAFE_snprintf(&buffer,&size,"%s",pcop->name);
4404                                                 return buffer;
4405                                         }
4406                                 return pcop->name;
4407                                 }
4408
4409                 }
4410         }
4411
4412   return "NO operand1";
4413 }
4414
4415 /*-----------------------------------------------------------------*/
4416 /* pic16_get_op2 - variant to support two memory operand commands  */
4417 /*-----------------------------------------------------------------*/
4418 char *pic16_get_op2(pCodeOp *pcop,char *buffer, size_t size)
4419 {
4420   regs *r;
4421   static char b[50];
4422   char *s;
4423   int use_buffer = 1;    // copy the string to the passed buffer pointer
4424
4425         if(!buffer) {
4426                 buffer = b;
4427                 size = sizeof(b);
4428                 use_buffer = 0;     // Don't bother copying the string to the buffer.
4429         }
4430
4431 #if 0
4432         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",
4433                 __FUNCTION__, __LINE__, PCOR(PCOR2(pcop)->pcop2)->r->name, PCOR2(pcop)->pcop2->type,
4434                 PO_DIR, PO_GPR_TEMP, PO_IMMEDIATE, PO_INDF0, PO_FSR0);
4435 #endif
4436
4437         if(pcop) {
4438                 switch(PCOR2(pcop)->pcop2->type) {
4439                         case PO_PRODL:
4440                         case PO_PRODH:
4441                         case PO_INDF0:
4442                         case PO_FSR0:
4443                                 if(use_buffer) {
4444                                         SAFE_snprintf(&buffer,&size,"%s",PCOR(PCOR2(pcop)->pcop2)->r->name);
4445                                         return buffer;
4446                                 }
4447                                 return PCOR(PCOR2(pcop)->pcop2)->r->name;
4448                                 break;
4449                         case PO_GPR_TEMP:
4450                                 r = pic16_regWithIdx(PCOR(PCOR2(pcop)->pcop2)->r->rIdx);
4451
4452                                 if(use_buffer) {
4453                                         SAFE_snprintf(&buffer,&size,"%s",r->name);
4454                                         return buffer;
4455                                 }
4456                                 return r->name;
4457
4458                         case PO_IMMEDIATE:
4459                                         assert( 0 );
4460                                 break;
4461 #if 0
4462                                 s = buffer;
4463
4464                                 if(PCOI(pcop)->_const) {
4465                                         if( PCOI(pcop)->offset && PCOI(pcop)->offset<4) {
4466                                                 SAFE_snprintf(&s,&size,"(((%s+%d) >> %d)&0xff)",
4467                                                         pcop->name,
4468                                                         PCOI(pcop)->index,
4469                                                         8 * PCOI(pcop)->offset );
4470                                         } else
4471                                                 SAFE_snprintf(&s,&size,"LOW(%s+%d)",pcop->name,PCOI(pcop)->index);
4472                                 } else {
4473                                         if( PCOI(pcop)->index) {
4474                                                 SAFE_snprintf(&s,&size,"(%s + %d)",
4475                                                         pcop->name,
4476                                                         PCOI(pcop)->index );
4477                                         } else {
4478                                                 if(PCOI(pcop)->offset)
4479                                                         SAFE_snprintf(&s,&size,"(%s >> %d)&0xff",pcop->name, 8*PCOI(pcop)->offset);
4480                                                 else
4481                                                         SAFE_snprintf(&s,&size,"%s",pcop->name);
4482                                         }
4483                                 }
4484                                 return buffer;
4485 #endif
4486                         case PO_DIR:
4487                                 s = buffer;
4488                                 if( PCOR(PCOR2(pcop)->pcop2)->instance) {
4489                                         SAFE_snprintf(&s,&size,"(%s + %d)",
4490                                                 PCOR(PCOR2(pcop)->pcop2)->r->name,
4491                                                 PCOR(PCOR2(pcop)->pcop2)->instance );
4492                                 } else {
4493                                         SAFE_snprintf(&s,&size,"%s",PCOR(PCOR2(pcop)->pcop2)->r->name);
4494                                 }
4495                                 return buffer;
4496
4497                         default:
4498                                 if(PCOR(PCOR2(pcop)->pcop2)->r->name) {
4499                                         if(use_buffer) {
4500                                                 SAFE_snprintf(&buffer,&size,"%s",PCOR(PCOR2(pcop)->pcop2)->r->name);
4501                                                 return buffer;
4502                                         }
4503                                         return PCOR(PCOR2(pcop)->pcop2)->r->name;
4504                                 }
4505                 }
4506         }
4507
4508   return "NO operand2";
4509 }
4510
4511 /*-----------------------------------------------------------------*/
4512 /*-----------------------------------------------------------------*/
4513 static char *pic16_get_op_from_instruction( pCodeInstruction *pcc)
4514 {
4515
4516   if(pcc )
4517     return pic16_get_op(pcc->pcop,NULL,0);
4518
4519   /* gcc 3.2:  warning: concatenation of string literals with __FUNCTION__ is deprecated
4520    *   return ("ERROR Null: "__FUNCTION__);
4521    */
4522   return ("ERROR Null: pic16_get_op_from_instruction");
4523
4524 }
4525
4526 /*-----------------------------------------------------------------*/
4527 /*-----------------------------------------------------------------*/
4528 static void pCodeOpPrint(FILE *of, pCodeOp *pcop)
4529 {
4530
4531   fprintf(of,"pcodeopprint- not implemented\n");
4532 }
4533
4534 /*-----------------------------------------------------------------*/
4535 /* pic16_pCode2str - convert a pCode instruction to string               */
4536 /*-----------------------------------------------------------------*/
4537 char *pic16_pCode2str(char *str, size_t size, pCode *pc)
4538 {
4539   char *s = str;
4540   regs *r;
4541
4542 #if 0
4543         if(isPCI(pc) && (PCI(pc)->pci_magic != PCI_MAGIC)) {
4544                 fprintf(stderr, "%s:%d: pCodeInstruction initialization error in instruction %s, magic is %x (defaut: %x)\n",
4545                         __FILE__, __LINE__, PCI(pc)->mnemonic, PCI(pc)->pci_magic, PCI_MAGIC);
4546                 exit(-1);
4547         }
4548 #endif
4549
4550   switch(pc->type) {
4551
4552   case PC_OPCODE:
4553     SAFE_snprintf(&s,&size, "\t%s\t", PCI(pc)->mnemonic);
4554
4555     if( (PCI(pc)->num_ops >= 1) && (PCI(pc)->pcop)) {
4556
4557         if(PCI(pc)->is2MemOp) {
4558                 SAFE_snprintf(&s,&size, "%s, %s",
4559                 pic16_get_op(PCOP(PCI(pc)->pcop), NULL, 0),
4560                 pic16_get_op2(PCOP(PCI(pc)->pcop), NULL, 0));
4561                 break;
4562         }
4563
4564         if(PCI(pc)->is2LitOp) {
4565                 SAFE_snprintf(&s,&size, "%s", PCOP(PCI(pc)->pcop)->name);
4566                 break;
4567         }
4568
4569       if(PCI(pc)->isBitInst) {
4570         if(PCI(pc)->pcop->type == PO_GPR_BIT) {
4571           if( (((pCodeOpRegBit *)(PCI(pc)->pcop))->inBitSpace) )
4572             SAFE_snprintf(&s,&size,"(%s >> 3), (%s & 7)",
4573                           PCI(pc)->pcop->name ,
4574                           PCI(pc)->pcop->name );
4575           else
4576             SAFE_snprintf(&s,&size,"%s,%d", pic16_get_op_from_instruction(PCI(pc)),
4577                           (((pCodeOpRegBit *)(PCI(pc)->pcop))->bit ));
4578         } else if(PCI(pc)->pcop->type == PO_GPR_BIT) {
4579           SAFE_snprintf(&s,&size,"%s,%d", pic16_get_op_from_instruction(PCI(pc)),PCORB(PCI(pc)->pcop)->bit);
4580         }else
4581           SAFE_snprintf(&s,&size,"%s,0 ; ?bug", pic16_get_op_from_instruction(PCI(pc)));
4582         //PCI(pc)->pcop->t.bit );
4583       } else {
4584
4585         if(PCI(pc)->pcop->type == PO_GPR_BIT) {
4586           if( PCI(pc)->num_ops == 3)
4587             SAFE_snprintf(&s,&size,"(%s >> 3),%c",pic16_get_op_from_instruction(PCI(pc)),((PCI(pc)->isModReg) ? 'F':'W'));
4588           else
4589             SAFE_snprintf(&s,&size,"(1 << (%s & 7))",pic16_get_op_from_instruction(PCI(pc)));
4590
4591         }else {
4592           SAFE_snprintf(&s,&size,"%s", pic16_get_op_from_instruction(PCI(pc)));
4593
4594                 if( PCI(pc)->num_ops == 3 || ((PCI(pc)->num_ops == 2) && (PCI(pc)->isAccess))) {
4595                         if(PCI(pc)->num_ops == 3)
4596                                 SAFE_snprintf(&s,&size,", %c", ( (PCI(pc)->isModReg) ? 'F':'W'));
4597
4598                         r = pic16_getRegFromInstruction(pc);
4599 //                      fprintf(stderr, "%s:%d reg = %p\tname= %s, accessBank= %d\n",
4600 //                                      __FUNCTION__, __LINE__, r, (r)?r->name:"<null>", (r)?r->accessBank:-1);
4601
4602                         if(r && !r->accessBank)SAFE_snprintf(&s,&size,", %s", "B");
4603           }
4604         }
4605       }
4606
4607     }
4608     break;
4609
4610   case PC_COMMENT:
4611     /* assuming that comment ends with a \n */
4612     SAFE_snprintf(&s,&size,";%s", ((pCodeComment *)pc)->comment);
4613     break;
4614
4615   case PC_INLINE:
4616     /* assuming that inline code ends with a \n */
4617     SAFE_snprintf(&s,&size,"%s", ((pCodeComment *)pc)->comment);
4618     break;
4619
4620   case PC_LABEL:
4621     SAFE_snprintf(&s,&size,";label=%s, key=%d\n",PCL(pc)->label,PCL(pc)->key);
4622     break;
4623   case PC_FUNCTION:
4624     SAFE_snprintf(&s,&size,";modname=%s,function=%s: id=%d\n",PCF(pc)->modname,PCF(pc)->fname);
4625     break;
4626   case PC_WILD:
4627     SAFE_snprintf(&s,&size,";\tWild opcode: id=%d\n",PCW(pc)->id);
4628     break;
4629   case PC_FLOW:
4630     SAFE_snprintf(&s,&size,";\t--FLOW change\n");
4631     break;
4632   case PC_CSOURCE:
4633 //    SAFE_snprintf(&s,&size,";#CSRC\t%s %d\t%s\n", PCCS(pc)->file_name, PCCS(pc)->line_number, PCCS(pc)->line);
4634       SAFE_snprintf(&s,&size,"#LINE\t%d; %s\t%s\n", PCCS(pc)->line_number, PCCS(pc)->file_name, PCCS(pc)->line);
4635     break;
4636   case PC_ASMDIR:
4637         if(PCAD(pc)->directive) {
4638                 SAFE_snprintf(&s,&size,"\t%s%s%s\n", PCAD(pc)->directive, PCAD(pc)->arg?"\t":"", PCAD(pc)->arg?PCAD(pc)->arg:"");
4639         } else
4640         if(PCAD(pc)->arg) {
4641                 /* special case to handle inline labels without a tab */
4642                 SAFE_snprintf(&s,&size,"%s\n", PCAD(pc)->arg);
4643         }
4644         break;
4645
4646   case PC_BAD:
4647     SAFE_snprintf(&s,&size,";A bad pCode is being used\n");
4648   }
4649
4650   return str;
4651
4652 }
4653
4654 /*-----------------------------------------------------------------*/
4655 /* genericPrint - the contents of a pCode to a file                */
4656 /*-----------------------------------------------------------------*/
4657 static void genericPrint(FILE *of, pCode *pc)
4658 {
4659
4660   if(!pc || !of)
4661     return;
4662
4663   switch(pc->type) {
4664   case PC_COMMENT:
4665     fprintf(of,";%s\n", ((pCodeComment *)pc)->comment);
4666     break;
4667
4668   case PC_INLINE:
4669     fprintf(of,"%s\n", ((pCodeComment *)pc)->comment);
4670      break;
4671
4672   case PC_OPCODE:
4673     // If the opcode has a label, print that first
4674     {
4675       pBranch *pbl = PCI(pc)->label;
4676       while(pbl && pbl->pc) {
4677         if(pbl->pc->type == PC_LABEL)
4678           pCodePrintLabel(of, pbl->pc);
4679         pbl = pbl->next;
4680       }
4681     }
4682
4683     if(PCI(pc)->cline)
4684       genericPrint(of,PCODE(PCI(pc)->cline));
4685
4686     {
4687       char str[256];
4688
4689       pic16_pCode2str(str, 256, pc);
4690
4691       fprintf(of,"%s",str);
4692       /* Debug */
4693       if(pic16_debug_verbose) {
4694         fprintf(of, "\t;key=%03x",pc->seq);
4695         if(PCI(pc)->pcflow)
4696           fprintf(of,", flow seq=%03x",PCI(pc)->pcflow->pc.seq);
4697       }
4698     }
4699     fprintf(of, "\n");
4700     break;
4701
4702   case PC_WILD:
4703     fprintf(of,";\tWild opcode: id=%d\n",PCW(pc)->id);
4704     if(PCW(pc)->pci.label)
4705       pCodePrintLabel(of, PCW(pc)->pci.label->pc);
4706
4707     if(PCW(pc)->operand) {
4708       fprintf(of,";\toperand  ");
4709       pCodeOpPrint(of,PCW(pc)->operand );
4710     }
4711     break;
4712
4713   case PC_FLOW:
4714     if(pic16_debug_verbose) {
4715       fprintf(of,";<>Start of new flow, seq=0x%x",pc->seq);
4716       if(PCFL(pc)->ancestor)
4717         fprintf(of," ancestor = 0x%x", PCODE(PCFL(pc)->ancestor)->seq);
4718       fprintf(of,"\n");
4719
4720     }
4721     break;
4722
4723   case PC_CSOURCE:
4724 //    fprintf(of,";#CSRC\t%s %d\t\t%s\n", PCCS(pc)->file_name, PCCS(pc)->line_number, PCCS(pc)->line);
4725     fprintf(of,"#LINE\t%d; %s\t%s\n", PCCS(pc)->line_number, PCCS(pc)->file_name, PCCS(pc)->line);
4726
4727     break;
4728
4729   case PC_ASMDIR:
4730         {
4731           pBranch *pbl = PCAD(pc)->pci.label;
4732                 while(pbl && pbl->pc) {
4733                         if(pbl->pc->type == PC_LABEL)
4734                                 pCodePrintLabel(of, pbl->pc);
4735                         pbl = pbl->next;
4736                 }
4737         }
4738         if(PCAD(pc)->directive) {
4739                 fprintf(of, "\t%s%s%s\n", PCAD(pc)->directive, PCAD(pc)->arg?"\t":"", PCAD(pc)->arg?PCAD(pc)->arg:"");
4740         } else
4741         if(PCAD(pc)->arg) {
4742                 /* special case to handle inline labels without tab */
4743                 fprintf(of, "%s\n", PCAD(pc)->arg);
4744         }
4745         break;
4746
4747   case PC_LABEL:
4748   default:
4749     fprintf(of,"unknown pCode type %d\n",pc->type);
4750   }
4751
4752 }
4753
4754 /*-----------------------------------------------------------------*/
4755 /* pCodePrintFunction - prints function begin/end                  */
4756 /*-----------------------------------------------------------------*/
4757
4758 static void pCodePrintFunction(FILE *of, pCode *pc)
4759 {
4760
4761   if(!pc || !of)
4762     return;
4763
4764 #if 0
4765   if( ((pCodeFunction *)pc)->modname)
4766     fprintf(of,"F_%s",((pCodeFunction *)pc)->modname);
4767 #endif
4768
4769   if(!PCF(pc)->absblock) {
4770       if(PCF(pc)->fname) {
4771       pBranch *exits = PCF(pc)->to;
4772       int i=0;
4773
4774       fprintf(of,"%s:", PCF(pc)->fname);
4775
4776       if(pic16_pcode_verbose)
4777         fprintf(of, "\t;Function start");
4778
4779       fprintf(of, "\n");
4780
4781       while(exits) {
4782         i++;
4783         exits = exits->next;
4784       }
4785       //if(i) i--;
4786
4787       if(pic16_pcode_verbose)
4788         fprintf(of,"; %d exit point%c\n",i, ((i==1) ? ' ':'s'));
4789
4790     } else {
4791         if((PCF(pc)->from &&
4792                 PCF(pc)->from->pc->type == PC_FUNCTION &&
4793                 PCF(PCF(pc)->from->pc)->fname) ) {
4794
4795                 if(pic16_pcode_verbose)
4796                         fprintf(of,"; exit point of %s\n",PCF(PCF(pc)->from->pc)->fname);
4797         } else {
4798                 if(pic16_pcode_verbose)
4799                         fprintf(of,"; exit point [can't find entry point]\n");
4800         }
4801         fprintf(of, "\n");
4802     }
4803   }
4804 }
4805 /*-----------------------------------------------------------------*/
4806 /* pCodePrintLabel - prints label                                  */
4807 /*-----------------------------------------------------------------*/
4808
4809 static void pCodePrintLabel(FILE *of, pCode *pc)
4810 {
4811
4812   if(!pc || !of)
4813     return;
4814
4815   if(PCL(pc)->label)
4816     fprintf(of,"%s:\n",PCL(pc)->label);
4817   else if (PCL(pc)->key >=0)
4818     fprintf(of,"_%05d_DS_:\n",PCL(pc)->key);
4819   else
4820     fprintf(of,";wild card label: id=%d\n",-PCL(pc)->key);
4821
4822 }
4823 /*-----------------------------------------------------------------*/
4824 /* unlinkpCodeFromBranch - Search for a label in a pBranch and     */
4825 /*                         remove it if it is found.               */
4826 /*-----------------------------------------------------------------*/
4827 static void unlinkpCodeFromBranch(pCode *pcl , pCode *pc)
4828 {
4829   pBranch *b, *bprev;
4830
4831
4832   bprev = NULL;
4833
4834   if(pcl->type == PC_OPCODE)
4835     b = PCI(pcl)->label;
4836   else {
4837     fprintf(stderr, "LINE %d. can't unlink from non opcode\n",__LINE__);
4838     exit(1);
4839
4840   }
4841
4842   //fprintf (stderr, "%s \n",__FUNCTION__);
4843   //pcl->print(stderr,pcl);
4844   //pc->print(stderr,pc);
4845   while(b) {
4846     if(b->pc == pc) {
4847       //fprintf (stderr, "found label\n");
4848       //pc->print(stderr, pc);
4849
4850       /* Found a label */
4851       if(bprev) {
4852         bprev->next = b->next;  /* Not first pCode in chain */
4853         free(b);
4854       } else {
4855         pc->destruct(pc);
4856         PCI(pcl)->label = b->next;   /* First pCode in chain */
4857         free(b);
4858       }
4859       return;  /* A label can't occur more than once */
4860     }
4861     bprev = b;
4862     b = b->next;
4863   }
4864
4865 }
4866
4867 /*-----------------------------------------------------------------*/
4868 /*-----------------------------------------------------------------*/
4869 pBranch * pic16_pBranchAppend(pBranch *h, pBranch *n)
4870 {
4871   pBranch *b;
4872
4873   if(!h)
4874     return n;
4875
4876   if(h == n)
4877     return n;
4878
4879   b = h;
4880   while(b->next)
4881     b = b->next;
4882
4883   b->next = n;
4884
4885   return h;
4886
4887 }
4888 /*-----------------------------------------------------------------*/
4889 /* pBranchLink - given two pcodes, this function will link them    */
4890 /*               together through their pBranches                  */
4891 /*-----------------------------------------------------------------*/
4892 static void pBranchLink(pCodeFunction *f, pCodeFunction *t)
4893 {
4894   pBranch *b;
4895
4896   // Declare a new branch object for the 'from' pCode.
4897
4898   //_ALLOC(b,sizeof(pBranch));
4899   b = Safe_calloc(1,sizeof(pBranch));
4900   b->pc = PCODE(t);             // The link to the 'to' pCode.
4901   b->next = NULL;
4902
4903   f->to = pic16_pBranchAppend(f->to,b);
4904
4905   // Now do the same for the 'to' pCode.
4906
4907   //_ALLOC(b,sizeof(pBranch));
4908   b = Safe_calloc(1,sizeof(pBranch));
4909   b->pc = PCODE(f);
4910   b->next = NULL;
4911
4912   t->from = pic16_pBranchAppend(t->from,b);
4913
4914 }
4915
4916 #if 0
4917 /*-----------------------------------------------------------------*/
4918 /* pBranchFind - find the pBranch in a pBranch chain that contains */
4919 /*               a pCode                                           */
4920 /*-----------------------------------------------------------------*/
4921 static pBranch *pBranchFind(pBranch *pb,pCode *pc)
4922 {
4923   while(pb) {
4924
4925     if(pb->pc == pc)
4926       return pb;
4927
4928     pb = pb->next;
4929   }
4930
4931   return NULL;
4932 }
4933
4934 /*-----------------------------------------------------------------*/
4935 /* pCodeUnlink - Unlink the given pCode from its pCode chain.      */
4936 /*-----------------------------------------------------------------*/
4937 static void pCodeUnlink(pCode *pc)
4938 {
4939   pBranch *pb1,*pb2;
4940   pCode *pc1;
4941
4942   if(!pc->prev || !pc->next) {
4943     fprintf(stderr,"unlinking bad pCode in %s:%d\n",__FILE__,__LINE__);
4944     exit(1);
4945   }
4946
4947   /* first remove the pCode from the chain */
4948   pc->prev->next = pc->next;
4949   pc->next->prev = pc->prev;
4950
4951   /* Now for the hard part... */
4952
4953   /* Remove the branches */
4954
4955   pb1 = pc->from;
4956   while(pb1) {
4957     pc1 = pb1->pc;    /* Get the pCode that branches to the
4958                        * one we're unlinking */
4959
4960     /* search for the link back to this pCode (the one we're
4961      * unlinking) */
4962     if(pb2 = pBranchFind(pc1->to,pc)) {
4963       pb2->pc = pc->to->pc;  // make the replacement
4964
4965       /* if the pCode we're unlinking contains multiple 'to'
4966        * branches (e.g. this a skip instruction) then we need
4967        * to copy these extra branches to the chain. */
4968       if(pc->to->next)
4969         pic16_pBranchAppend(pb2, pc->to->next);
4970     }
4971
4972     pb1 = pb1->next;
4973   }
4974
4975
4976 }
4977 #endif
4978 /*-----------------------------------------------------------------*/
4979 /*-----------------------------------------------------------------*/
4980 #if 0
4981 static void genericAnalyze(pCode *pc)
4982 {
4983   switch(pc->type) {
4984   case PC_WILD:
4985   case PC_COMMENT:
4986     return;
4987   case PC_LABEL:
4988   case PC_FUNCTION:
4989   case PC_OPCODE:
4990     {
4991       // Go through the pCodes that are in pCode chain and link
4992       // them together through the pBranches. Note, the pCodes
4993       // are linked together as a contiguous stream like the
4994       // assembly source code lines. The linking here mimics this
4995       // except that comments are not linked in.
4996       //
4997       pCode *npc = pc->next;
4998       while(npc) {
4999         if(npc->type == PC_OPCODE || npc->type == PC_LABEL) {
5000           pBranchLink(pc,npc);
5001           return;
5002         } else
5003           npc = npc->next;
5004       }
5005       /* reached the end of the pcode chain without finding
5006        * an instruction we could link to. */
5007     }
5008     break;
5009   case PC_FLOW:
5010     fprintf(stderr,"analyze PC_FLOW\n");
5011
5012     return;
5013   case PC_BAD:
5014     fprintf(stderr,,";A bad pCode is being used\n");
5015
5016   }
5017 }
5018 #endif
5019
5020 /*-----------------------------------------------------------------*/
5021 /*-----------------------------------------------------------------*/
5022 static int compareLabel(pCode *pc, pCodeOpLabel *pcop_label)
5023 {
5024   pBranch *pbr;
5025
5026   if(pc->type == PC_LABEL) {
5027     if( ((pCodeLabel *)pc)->key ==  pcop_label->key)
5028       return TRUE;
5029   }
5030   if((pc->type == PC_OPCODE)
5031         || (pc->type == PC_ASMDIR)
5032         ) {
5033     pbr = PCI(pc)->label;
5034     while(pbr) {
5035       if(pbr->pc->type == PC_LABEL) {
5036         if( ((pCodeLabel *)(pbr->pc))->key ==  pcop_label->key)
5037           return TRUE;
5038       }
5039       pbr = pbr->next;
5040     }
5041   }
5042
5043   return FALSE;
5044 }
5045
5046 /*-----------------------------------------------------------------*/
5047 /*-----------------------------------------------------------------*/
5048 static int checkLabel(pCode *pc)
5049 {
5050   pBranch *pbr;
5051
5052   if(pc && isPCI(pc)) {
5053     pbr = PCI(pc)->label;
5054     while(pbr) {
5055       if(isPCL(pbr->pc) && (PCL(pbr->pc)->key >= 0))
5056         return TRUE;
5057
5058       pbr = pbr->next;
5059     }
5060   }
5061
5062   return FALSE;
5063 }
5064
5065 /*-----------------------------------------------------------------*/
5066 /* findLabelinpBlock - Search the pCode for a particular label     */
5067 /*-----------------------------------------------------------------*/
5068 static pCode * findLabelinpBlock(pBlock *pb,pCodeOpLabel *pcop_label)
5069 {
5070   pCode  *pc;
5071
5072   if(!pb)
5073     return NULL;
5074
5075   for(pc = pb->pcHead; pc; pc = pc->next)
5076     if(compareLabel(pc,pcop_label))
5077       return pc;
5078
5079   return NULL;
5080 }
5081 #if 0
5082 /*-----------------------------------------------------------------*/
5083 /* findLabel - Search the pCode for a particular label             */
5084 /*-----------------------------------------------------------------*/
5085 static pCode * findLabel(pCodeOpLabel *pcop_label)
5086 {
5087   pBlock *pb;
5088   pCode  *pc;
5089
5090   if(!the_pFile)
5091     return NULL;
5092
5093   for(pb = the_pFile->pbHead; pb; pb = pb->next) {
5094     if( (pc = findLabelinpBlock(pb,pcop_label)) != NULL)
5095       return pc;
5096   }
5097
5098   fprintf(stderr,"Couldn't find label %s", pcop_label->pcop.name);
5099   return NULL;
5100 }
5101 #endif
5102 /*-----------------------------------------------------------------*/
5103 /* pic16_findNextpCode - given a pCode, find the next of type 'pct'      */
5104 /*                 in the linked list                              */
5105 /*-----------------------------------------------------------------*/
5106 pCode * pic16_findNextpCode(pCode *pc, PC_TYPE pct)
5107 {
5108
5109   while(pc) {
5110     if(pc->type == pct)
5111       return pc;
5112
5113     pc = pc->next;
5114   }
5115
5116   return NULL;
5117 }
5118
5119 /*-----------------------------------------------------------------*/
5120 /* findPrevpCode - given a pCode, find the previous of type 'pct'  */
5121 /*                 in the linked list                              */
5122 /*-----------------------------------------------------------------*/
5123 static pCode * findPrevpCode(pCode *pc, PC_TYPE pct)
5124 {
5125
5126   while(pc) {
5127     if(pc->type == pct)
5128       return pc;
5129
5130     pc = pc->prev;
5131   }
5132
5133   return NULL;
5134 }
5135
5136
5137 //#define PCODE_DEBUG
5138 /*-----------------------------------------------------------------*/
5139 /* pic16_findNextInstruction - given a pCode, find the next instruction  */
5140 /*                       in the linked list                        */
5141 /*-----------------------------------------------------------------*/
5142 pCode * pic16_findNextInstruction(pCode *pci)
5143 {
5144   pCode *pc = pci;
5145
5146   while(pc) {
5147     if((pc->type == PC_OPCODE)
5148         || (pc->type == PC_WILD)
5149         || (pc->type == PC_ASMDIR)
5150         )
5151       return pc;
5152
5153 #ifdef PCODE_DEBUG
5154     fprintf(stderr,"pic16_findNextInstruction:  ");
5155     printpCode(stderr, pc);
5156 #endif
5157     pc = pc->next;
5158   }
5159
5160   //fprintf(stderr,"Couldn't find instruction\n");
5161   return NULL;
5162 }
5163
5164 /*-----------------------------------------------------------------*/
5165 /* pic16_findNextInstruction - given a pCode, find the next instruction  */
5166 /*                       in the linked list                        */
5167 /*-----------------------------------------------------------------*/
5168 pCode * pic16_findPrevInstruction(pCode *pci)
5169 {
5170   pCode *pc = pci;
5171
5172   while(pc) {
5173     if((pc->type == PC_OPCODE)
5174         || (pc->type == PC_WILD)
5175         || (pc->type == PC_ASMDIR)
5176         )
5177       return pc;
5178
5179
5180 #ifdef PCODE_DEBUG
5181     fprintf(stderr,"pic16_findPrevInstruction:  ");
5182     printpCode(stderr, pc);
5183 #endif
5184     pc = pc->next;
5185   }
5186
5187   //fprintf(stderr,"Couldn't find instruction\n");
5188   return NULL;
5189 }
5190
5191 #undef PCODE_DEBUG
5192
5193 #if 0
5194 /*-----------------------------------------------------------------*/
5195 /* findFunctionEnd - given a pCode find the end of the function    */
5196 /*                   that contains it                              */
5197 /*-----------------------------------------------------------------*/
5198 static pCode * findFunctionEnd(pCode *pc)
5199 {
5200
5201   while(pc) {
5202     if(pc->type == PC_FUNCTION &&  !(PCF(pc)->fname))
5203       return pc;
5204
5205     pc = pc->next;
5206   }
5207
5208   fprintf(stderr,"Couldn't find function end\n");
5209   return NULL;
5210 }
5211 #endif
5212 #if 0
5213 /*-----------------------------------------------------------------*/
5214 /* AnalyzeLabel - if the pCode is a label, then merge it with the  */
5215 /*                instruction with which it is associated.         */
5216 /*-----------------------------------------------------------------*/
5217 static void AnalyzeLabel(pCode *pc)
5218 {
5219
5220   pCodeUnlink(pc);
5221
5222 }
5223 #endif
5224
5225 #if 0
5226 static void AnalyzeGOTO(pCode *pc)
5227 {
5228
5229   pBranchLink(pc,findLabel( (pCodeOpLabel *) (PCI(pc)->pcop) ));
5230
5231 }
5232
5233 static void AnalyzeSKIP(pCode *pc)
5234 {
5235
5236   pBranchLink(pc,pic16_findNextInstruction(pc->next));
5237   pBranchLink(pc,pic16_findNextInstruction(pc->next->next));
5238
5239 }
5240
5241 static void AnalyzeRETURN(pCode *pc)
5242 {
5243
5244   //  branch_link(pc,findFunctionEnd(pc->next));
5245
5246 }
5247
5248 #endif
5249
5250 /*-----------------------------------------------------------------*/
5251 /*-----------------------------------------------------------------*/
5252 regs * pic16_getRegFromInstruction(pCode *pc)
5253 {
5254
5255   if(!pc                   ||
5256      !isPCI(pc)            ||
5257      !PCI(pc)->pcop        ||
5258      PCI(pc)->num_ops == 0 ||
5259      (PCI(pc)->num_ops == 1 && PCI(pc)->isFastCall))
5260     return NULL;
5261
5262 #if 0
5263   fprintf(stderr, "pic16_getRegFromInstruction - reg type %s (%d)\n",
5264         dumpPicOptype( PCI(pc)->pcop->type), PCI(pc)->pcop->type);
5265 #endif
5266
5267   switch(PCI(pc)->pcop->type) {
5268   case PO_PRODL:
5269   case PO_PRODH:
5270
5271   case PO_INDF0:
5272   case PO_FSR0:
5273     return PCOR(PCI(pc)->pcop)->r;
5274
5275     //    return typeRegWithIdx (PCOR(PCI(pc)->pcop)->rIdx, REG_SFR, 0);
5276
5277   case PO_BIT:
5278   case PO_GPR_TEMP:
5279 //      fprintf(stderr, "pic16_getRegFromInstruction - bit or temp\n");
5280     return PCOR(PCI(pc)->pcop)->r;
5281
5282   case PO_IMMEDIATE:
5283     if(PCOI(PCI(pc)->pcop)->r)
5284       return (PCOI(PCI(pc)->pcop)->r);
5285
5286     //fprintf(stderr, "pic16_getRegFromInstruction - immediate\n");
5287     return pic16_dirregWithName(PCI(pc)->pcop->name);
5288     //return NULL; // PCOR(PCI(pc)->pcop)->r;
5289
5290   case PO_GPR_BIT:
5291     return PCOR(PCI(pc)->pcop)->r;
5292
5293   case PO_DIR:
5294 //      fprintf(stderr, "pic16_getRegFromInstruction - dir\n");
5295     return PCOR(PCI(pc)->pcop)->r;
5296   case PO_LITERAL:
5297     //fprintf(stderr, "pic16_getRegFromInstruction - literal\n");
5298     break;
5299
5300   default:
5301 //      fprintf(stderr, "pic16_getRegFromInstruction - unknown reg type %d\n",PCI(pc)->pcop->type);
5302 //      genericPrint(stderr, pc);
5303 //      assert( 0 );
5304     break;
5305   }
5306
5307   return NULL;
5308 }
5309
5310 /*-------------------------------------------------------------------------------*/
5311 /* pic16_getRegFromInstruction2 - variant to support two memory operand commands */
5312 /*-------------------------------------------------------------------------------*/
5313 regs * pic16_getRegFromInstruction2(pCode *pc)
5314 {
5315
5316   if(!pc                   ||
5317      !isPCI(pc)            ||
5318      !PCI(pc)->pcop        ||
5319      PCI(pc)->num_ops == 0 ||
5320      (PCI(pc)->num_ops == 1))           // accept only 2 operand commands
5321     return NULL;
5322
5323
5324 #if 0
5325   fprintf(stderr, "pic16_getRegFromInstruction2 - reg type %s (%d)\n",
5326         dumpPicOptype( PCI(pc)->pcop->type), PCI(pc)->pcop->type);
5327 #endif
5328
5329 /*
5330  * operands supported in MOVFF:
5331  *  PO_INF0/PO_FSR0
5332  *  PO_GPR_TEMP
5333  *  PO_IMMEDIATE
5334  *  PO_DIR
5335  *
5336  */
5337   switch(PCI(pc)->pcop->type) {
5338   case PO_PRODL:
5339   case PO_PRODH:
5340
5341   case PO_INDF0:
5342   case PO_FSR0:
5343     return PCOR(PCOR2(PCI(pc)->pcop)->pcop2)->r;
5344
5345     //    return typeRegWithIdx (PCOR(PCI(pc)->pcop)->rIdx, REG_SFR, 0);
5346
5347 //  case PO_BIT:
5348   case PO_GPR_TEMP:
5349     //fprintf(stderr, "pic16_getRegFromInstruction2 - bit or temp\n");
5350     return PCOR(PCOR2(PCI(pc)->pcop)->pcop2)->r;
5351
5352   case PO_IMMEDIATE:
5353 //      break;
5354 #if 1
5355 //    if(PCOI(PCI(pc)->pcop)->r)
5356 //      return (PCOI(PCOR2(PCI(pc)->pcop)->pcop2)->r);
5357
5358     //fprintf(stderr, "pic16_getRegFromInstruction2 - immediate\n");
5359     return pic16_dirregWithName(PCOR(PCOR2(PCI(pc)->pcop)->pcop2)->r->name);
5360     //return NULL; // PCOR(PCI(pc)->pcop)->r;
5361 #endif
5362
5363   case PO_GPR_BIT:
5364         break;
5365 //    return PCOR2(PCI(pc)->pcop)->r;
5366
5367   case PO_DIR:
5368     //fprintf(stderr, "pic16_getRegFromInstruction2 - dir\n");
5369     return PCOR(PCOR2(PCI(pc)->pcop)->pcop2)->r;
5370
5371   case PO_LITERAL:
5372         break;
5373     //fprintf(stderr, "pic16_getRegFromInstruction2 - literal\n");
5374
5375   default:
5376     //fprintf(stderr, "pic16_getRegFromInstruction2 - unknown reg type %d\n",PCI(pc)->pcop->type);
5377     //genericPrint(stderr, pc);
5378     break;
5379   }
5380
5381   return NULL;
5382
5383 }
5384
5385 /*-----------------------------------------------------------------*/
5386 /*-----------------------------------------------------------------*/
5387
5388 static void AnalyzepBlock(pBlock *pb)
5389 {
5390   pCode *pc;
5391
5392   if(!pb)
5393     return;
5394
5395   /* Find all of the registers used in this pBlock
5396    * by looking at each instruction and examining it's
5397    * operands
5398    */
5399   for(pc = pb->pcHead; pc; pc = pc->next) {
5400
5401     /* Is this an instruction with operands? */
5402     if(pc->type == PC_OPCODE && PCI(pc)->pcop) {
5403
5404       if(PCI(pc)->pcop->type == PO_GPR_TEMP) {
5405
5406         /* Loop through all of the registers declared so far in
5407            this block and see if we find this one there */
5408
5409         regs *r = setFirstItem(pb->tregisters);
5410
5411         while(r) {
5412           if(r->rIdx == PCOR(PCI(pc)->pcop)->r->rIdx) {
5413             PCOR(PCI(pc)->pcop)->r = r;
5414             break;
5415           }
5416           r = setNextItem(pb->tregisters);
5417         }
5418
5419         if(!r) {
5420           /* register wasn't found */
5421           //r = Safe_calloc(1, sizeof(regs));
5422           //memcpy(r,PCOR(PCI(pc)->pcop)->r, sizeof(regs));
5423           //addSet(&pb->tregisters, r);
5424           addSet(&pb->tregisters, PCOR(PCI(pc)->pcop)->r);
5425           //PCOR(PCI(pc)->pcop)->r = r;
5426           //fprintf(stderr,"added register to pblock: reg %d\n",r->rIdx);
5427         }/* else
5428           fprintf(stderr,"found register in pblock: reg %d\n",r->rIdx);
5429          */
5430       }
5431       if(PCI(pc)->pcop->type == PO_GPR_REGISTER) {
5432         if(PCOR(PCI(pc)->pcop)->r) {
5433           pic16_allocWithIdx (PCOR(PCI(pc)->pcop)->r->rIdx);
5434           DFPRINTF((stderr,"found register in pblock: reg 0x%x\n",PCOR(PCI(pc)->pcop)->r->rIdx));
5435         } else {
5436           if(PCI(pc)->pcop->name)
5437             fprintf(stderr,"ERROR: %s is a NULL register\n",PCI(pc)->pcop->name );
5438           else
5439             fprintf(stderr,"ERROR: NULL register\n");
5440         }
5441       }
5442     }
5443
5444
5445   }
5446 }
5447
5448 /*-----------------------------------------------------------------*/
5449 /* */
5450 /*-----------------------------------------------------------------*/
5451 #define PCI_HAS_LABEL(x) ((x) && (PCI(x)->label != NULL))
5452
5453 static void InsertpFlow(pCode *pc, pCode **pflow)
5454 {
5455   if(*pflow)
5456     PCFL(*pflow)->end = pc;
5457
5458   if(!pc || !pc->next)
5459     return;
5460
5461   *pflow = pic16_newpCodeFlow();
5462   pic16_pCodeInsertAfter(pc, *pflow);
5463 }
5464
5465 /*-----------------------------------------------------------------*/
5466 /* pic16_BuildFlow(pBlock *pb) - examine the code in a pBlock and build  */
5467 /*                         the flow blocks.                        */
5468 /*
5469  * pic16_BuildFlow inserts pCodeFlow objects into the pCode chain at each
5470  * point the instruction flow changes.
5471  */
5472 /*-----------------------------------------------------------------*/
5473 void pic16_BuildFlow(pBlock *pb)
5474 {
5475   pCode *pc;
5476   pCode *last_pci=NULL;
5477   pCode *pflow=NULL;
5478   int seq = 0;
5479
5480   if(!pb)
5481     return;
5482
5483   //fprintf (stderr,"build flow start seq %d  ",GpcFlowSeq);
5484   /* Insert a pCodeFlow object at the beginning of a pBlock */
5485
5486   InsertpFlow(pb->pcHead, &pflow);
5487
5488   //pflow = pic16_newpCodeFlow();    /* Create a new Flow object */
5489   //pflow->next = pb->pcHead;  /* Make the current head the next object */
5490   //pb->pcHead->prev = pflow;  /* let the current head point back to the flow object */
5491   //pb->pcHead = pflow;        /* Make the Flow object the head */
5492   //pflow->pb = pb;
5493
5494   for( pc = pic16_findNextInstruction(pb->pcHead);
5495        pc != NULL;
5496        pc=pic16_findNextInstruction(pc)) {
5497
5498     pc->seq = seq++;
5499     PCI(pc)->pcflow = PCFL(pflow);
5500
5501     //fprintf(stderr," build: ");
5502     //pflow->print(stderr,pflow);
5503
5504     if( PCI(pc)->isSkip) {
5505
5506       /* The two instructions immediately following this one
5507        * mark the beginning of a new flow segment */
5508
5509       while(pc && PCI(pc)->isSkip) {
5510
5511         PCI(pc)->pcflow = PCFL(pflow);
5512         pc->seq = seq-1;
5513         seq = 1;
5514
5515         InsertpFlow(pc, &pflow);
5516         pc=pic16_findNextInstruction(pc->next);
5517       }
5518
5519       seq = 0;
5520
5521       if(!pc)
5522         break;
5523
5524       PCI(pc)->pcflow = PCFL(pflow);
5525       pc->seq = 0;
5526       InsertpFlow(pc, &pflow);
5527
5528     } else if ( PCI(pc)->isBranch && !checkLabel(pic16_findNextInstruction(pc->next)))  {
5529
5530       InsertpFlow(pc, &pflow);
5531       seq = 0;
5532
5533     } else if (checkLabel(pc)) {
5534
5535       /* This instruction marks the beginning of a
5536        * new flow segment */
5537
5538       pc->seq = 0;
5539       seq = 1;
5540
5541       /* If the previous pCode is not a flow object, then
5542        * insert a new flow object. (This check prevents
5543        * two consecutive flow objects from being insert in
5544        * the case where a skip instruction preceeds an
5545        * instruction containing a label.) */
5546
5547       if(last_pci && (PCI(last_pci)->pcflow == PCFL(pflow)))
5548         InsertpFlow(pic16_findPrevInstruction(pc->prev), &pflow);
5549
5550       PCI(pc)->pcflow = PCFL(pflow);
5551
5552     }
5553     last_pci = pc;
5554     pc = pc->next;
5555   }
5556
5557   //fprintf (stderr,",end seq %d",GpcFlowSeq);
5558   if(pflow)
5559     PCFL(pflow)->end = pb->pcTail;
5560 }
5561
5562 /*-------------------------------------------------------------------*/
5563 /* unBuildFlow(pBlock *pb) - examine the code in a pBlock and build  */
5564 /*                           the flow blocks.                        */
5565 /*
5566  * unBuildFlow removes pCodeFlow objects from a pCode chain
5567  */
5568 /*-----------------------------------------------------------------*/
5569 static void unBuildFlow(pBlock *pb)
5570 {
5571   pCode *pc,*pcnext;
5572
5573   if(!pb)
5574     return;
5575
5576   pc = pb->pcHead;
5577
5578   while(pc) {
5579     pcnext = pc->next;
5580
5581     if(isPCI(pc)) {
5582
5583       pc->seq = 0;
5584       if(PCI(pc)->pcflow) {
5585         //free(PCI(pc)->pcflow);
5586         PCI(pc)->pcflow = NULL;
5587       }
5588
5589     } else if(isPCFL(pc) )
5590       pc->destruct(pc);
5591
5592     pc = pcnext;
5593   }
5594
5595
5596 }
5597 #if 0
5598 /*-----------------------------------------------------------------*/
5599 /*-----------------------------------------------------------------*/
5600 static void dumpCond(int cond)
5601 {
5602
5603   static char *pcc_str[] = {
5604     //"PCC_NONE",
5605     "PCC_REGISTER",
5606     "PCC_REGISTER2",
5607     "PCC_C",
5608     "PCC_Z",
5609     "PCC_DC",
5610     "PCC_OV",
5611     "PCC_N",
5612     "PCC_W",
5613     "PCC_EXAMINE_PCOP",
5614     "PCC_LITERAL",
5615     "PCC_REL_ADDR"
5616   };
5617
5618   int ncond = sizeof(pcc_str) / sizeof(char *);
5619   int i,j;
5620
5621   fprintf(stderr, "0x%04X\n",cond);
5622
5623   for(i=0,j=1; i<ncond; i++, j<<=1)
5624     if(cond & j)
5625       fprintf(stderr, "  %s\n",pcc_str[i]);
5626
5627 }
5628 #endif
5629
5630 #if 0
5631 /*-----------------------------------------------------------------*/
5632 /*-----------------------------------------------------------------*/
5633 static void FlowStats(pCodeFlow *pcflow)
5634 {
5635
5636   pCode *pc;
5637
5638   if(!isPCFL(pcflow))
5639     return;
5640
5641   fprintf(stderr, " FlowStats - flow block (seq=%d)\n", pcflow->pc.seq);
5642
5643   pc = pic16_findNextpCode(PCODE(pcflow), PC_OPCODE);
5644
5645   if(!pc) {
5646     fprintf(stderr, " FlowStats - empty flow (seq=%d)\n", pcflow->pc.seq);
5647     return;
5648   }
5649
5650
5651   fprintf(stderr, "  FlowStats inCond: ");
5652   dumpCond(pcflow->inCond);
5653   fprintf(stderr, "  FlowStats outCond: ");
5654   dumpCond(pcflow->outCond);
5655
5656 }
5657 #endif
5658 /*-----------------------------------------------------------------*
5659  * int isBankInstruction(pCode *pc) - examine the pCode *pc to determine
5660  *    if it affects the banking bits.
5661  *
5662  * return: -1 == Banking bits are unaffected by this pCode.
5663  *
5664  * return: > 0 == Banking bits are affected.
5665  *
5666  *  If the banking bits are affected, then the returned value describes
5667  * which bits are affected and how they're affected. The lower half
5668  * of the integer maps to the bits that are affected, the upper half
5669  * to whether they're set or cleared.
5670  *
5671  *-----------------------------------------------------------------*/
5672
5673 static int isBankInstruction(pCode *pc)
5674 {
5675   regs *reg;
5676   int bank = -1;
5677
5678   if(!isPCI(pc))
5679     return -1;
5680
5681   if( PCI(pc)->op == POC_MOVLB ||
5682       (( (reg = pic16_getRegFromInstruction(pc)) != NULL) && isBSR_REG(reg))) {
5683     bank = PCOL(pc)->lit;
5684   }
5685
5686   return bank;
5687 }
5688
5689
5690 /*-----------------------------------------------------------------*/
5691 /*-----------------------------------------------------------------*/
5692 static void FillFlow(pCodeFlow *pcflow)
5693 {
5694
5695   pCode *pc;
5696   int cur_bank;
5697
5698   if(!isPCFL(pcflow))
5699     return;
5700
5701   //  fprintf(stderr, " FillFlow - flow block (seq=%d)\n", pcflow->pc.seq);
5702
5703   pc = pic16_findNextpCode(PCODE(pcflow), PC_OPCODE);
5704
5705   if(!pc) {
5706     //fprintf(stderr, " FillFlow - empty flow (seq=%d)\n", pcflow->pc.seq);
5707     return;
5708   }
5709
5710   cur_bank = -1;
5711
5712   do {
5713     isBankInstruction(pc);
5714     pc = pc->next;
5715   } while (pc && (pc != pcflow->end) && !isPCFL(pc));
5716
5717 /*
5718   if(!pc ) {
5719     fprintf(stderr, "  FillFlow - Bad end of flow\n");
5720   } else {
5721     fprintf(stderr, "  FillFlow - Ending flow with\n  ");
5722     pc->print(stderr,pc);
5723   }
5724
5725   fprintf(stderr, "  FillFlow inCond: ");
5726   dumpCond(pcflow->inCond);
5727   fprintf(stderr, "  FillFlow outCond: ");
5728   dumpCond(pcflow->outCond);
5729 */
5730 }
5731
5732 /*-----------------------------------------------------------------*/
5733 /*-----------------------------------------------------------------*/
5734 static void LinkFlow_pCode(pCodeInstruction *from, pCodeInstruction *to)
5735 {
5736   pCodeFlowLink *fromLink, *toLink;
5737
5738   if(!from || !to || !to->pcflow || !from->pcflow)
5739     return;
5740
5741   fromLink = pic16_newpCodeFlowLink(from->pcflow);
5742   toLink   = pic16_newpCodeFlowLink(to->pcflow);
5743
5744   addSetIfnotP(&(from->pcflow->to), toLink);   //to->pcflow);
5745   addSetIfnotP(&(to->pcflow->from), fromLink); //from->pcflow);
5746
5747 }
5748
5749 /*-----------------------------------------------------------------*
5750  * void LinkFlow(pBlock *pb)
5751  *
5752  * In pic16_BuildFlow, the PIC code has been partitioned into contiguous
5753  * non-branching segments. In LinkFlow, we determine the execution
5754  * order of these segments. For example, if one of the segments ends
5755  * with a skip, then we know that there are two possible flow segments
5756  * to which control may be passed.
5757  *-----------------------------------------------------------------*/
5758 static void LinkFlow(pBlock *pb)
5759 {
5760   pCode *pc=NULL;
5761   pCode *pcflow;
5762   pCode *pct;
5763
5764   //fprintf(stderr,"linkflow \n");
5765
5766   for( pcflow = pic16_findNextpCode(pb->pcHead, PC_FLOW);
5767        pcflow != NULL;
5768        pcflow = pic16_findNextpCode(pcflow->next, PC_FLOW) ) {
5769
5770     if(!isPCFL(pcflow))
5771       fprintf(stderr, "LinkFlow - pcflow is not a flow object ");
5772
5773     //fprintf(stderr," link: ");
5774     //pcflow->print(stderr,pcflow);
5775
5776     //FillFlow(PCFL(pcflow));
5777
5778     pc = PCFL(pcflow)->end;
5779
5780     //fprintf(stderr, "LinkFlow - flow block (seq=%d) ", pcflow->seq);
5781     if(isPCI_SKIP(pc)) {
5782       //fprintf(stderr, "ends with skip\n");
5783       //pc->print(stderr,pc);
5784       pct=pic16_findNextInstruction(pc->next);
5785       LinkFlow_pCode(PCI(pc),PCI(pct));
5786       pct=pic16_findNextInstruction(pct->next);
5787       LinkFlow_pCode(PCI(pc),PCI(pct));
5788       continue;
5789     }
5790
5791     if(isPCI_BRANCH(pc)) {
5792       pCodeOpLabel *pcol = PCOLAB(PCI(pc)->pcop);
5793
5794       //fprintf(stderr, "ends with branch\n  ");
5795       //pc->print(stderr,pc);
5796
5797       if(!(pcol && isPCOLAB(pcol))) {
5798         if((PCI(pc)->op != POC_RETLW)
5799                 && (PCI(pc)->op != POC_RETURN) && (PCI(pc)->op != POC_CALL) && (PCI(pc)->op != POC_RETFIE) ) {
5800
5801                 /* continue if label is '$' which assembler knows how to parse */
5802                 if(((PCI(pc)->pcop->type == PO_STR) && !strcmp(PCI(pc)->pcop->name, "$")))continue;
5803
5804                 if(pic16_pcode_verbose) {
5805                         pc->print(stderr,pc);
5806                         fprintf(stderr, "ERROR: %s, branch instruction doesn't have label\n",__FUNCTION__);
5807                 }
5808         }
5809         continue;
5810       }
5811
5812       if( (pct = findLabelinpBlock(pb,pcol)) != NULL)
5813         LinkFlow_pCode(PCI(pc),PCI(pct));
5814       else
5815         fprintf(stderr, "ERROR: %s, couldn't find label. key=%d,lab=%s\n",
5816                 __FUNCTION__,pcol->key,((PCOP(pcol)->name)?PCOP(pcol)->name:"-"));
5817
5818 //      fprintf(stderr,"pic16_newpCodeOpLabel: key=%d, name=%s\n",pcol->key,(PCOP(pcol)->name)?(PCOP(pcol)->name):"<unknown>");
5819
5820       continue;
5821     }
5822
5823     if(isPCI(pc)) {
5824       //fprintf(stderr, "ends with non-branching instruction:\n");
5825       //pc->print(stderr,pc);
5826
5827       LinkFlow_pCode(PCI(pc),PCI(pic16_findNextInstruction(pc->next)));
5828
5829       continue;
5830     }
5831
5832     if(pc) {
5833       //fprintf(stderr, "ends with unknown\n");
5834       //pc->print(stderr,pc);
5835       continue;
5836     }
5837
5838     //fprintf(stderr, "ends with nothing: ERROR\n");
5839
5840   }
5841 }
5842 /*-----------------------------------------------------------------*/
5843 /*-----------------------------------------------------------------*/
5844
5845 /*-----------------------------------------------------------------*/
5846 /*-----------------------------------------------------------------*/
5847 int pic16_isPCinFlow(pCode *pc, pCode *pcflow)
5848 {
5849
5850   if(!pc || !pcflow)
5851     return 0;
5852
5853   if(!isPCI(pc) || !PCI(pc)->pcflow || !isPCFL(pcflow) )
5854     return 0;
5855
5856   if( PCI(pc)->pcflow->pc.seq == pcflow->seq)
5857     return 1;
5858
5859   return 0;
5860 }
5861
5862
5863
5864
5865
5866 /*-----------------------------------------------------------------*/
5867 /* insertBankSwitch - inserts a bank switch statement in the       */
5868 /*                    assembly listing                             */
5869 /*                                                                 */
5870 /* position == 0: insert before                                    */
5871 /* position == 1: insert after pc                                  */
5872 /* position == 2: 0 previous was a skip instruction                */
5873 /*-----------------------------------------------------------------*/
5874 static void insertBankSwitch(int position, pCode *pc)
5875 {
5876   pCode *new_pc;
5877   regs *reg;
5878
5879         if(!pc)
5880                 return;
5881
5882         /* emit BANKSEL [symbol] */
5883
5884         reg = pic16_getRegFromInstruction(pc);
5885         if(!reg)return;
5886         new_pc = pic16_newpCodeAsmDir("BANKSEL", "%s", pic16_get_op_from_instruction(PCI(pc)));
5887
5888 //      position = 0;           // position is always before (sanity check!)
5889
5890 #if 0
5891         fprintf(stderr, "%s:%d: inserting bank switch\tbank = %d\n", __FUNCTION__, __LINE__, bsr);
5892         pc->print(stderr, pc);
5893 #endif
5894
5895         switch(position) {
5896                 case 1: {
5897                         /* insert the bank switch after this pc instruction */
5898                         pCode *pcnext = pic16_findNextInstruction(pc);
5899                         pic16_pCodeInsertAfter(pc, new_pc);
5900                         if(pcnext)pc = pcnext;
5901                 }; break;
5902
5903                 case 0:
5904                         /* insert the bank switch BEFORE this pc instruction */
5905                         pic16_pCodeInsertAfter(pc->prev, new_pc);
5906                         break;
5907         }
5908
5909
5910         /* Move the label, if there is one */
5911
5912         if(PCI(pc)->label) {
5913 //              fprintf(stderr, "%s:%d: moving label due to bank switch directive src= 0x%p dst= 0x%p\n",
5914 //                      __FILE__, __LINE__, pc, new_pc);
5915                 PCAD(new_pc)->pci.label = PCI(pc)->label;
5916                 PCI(pc)->label = NULL;
5917         }
5918
5919 //  fprintf(stderr, "BankSwitch has been inserted\n");
5920 }
5921
5922
5923 /*-----------------------------------------------------------------*/
5924 /*int compareBankFlow - compare the banking requirements between   */
5925 /*  flow objects. */
5926 /*-----------------------------------------------------------------*/
5927 static int compareBankFlow(pCodeFlow *pcflow, pCodeFlowLink *pcflowLink, int toORfrom)
5928 {
5929
5930   if(!pcflow || !pcflowLink || !pcflowLink->pcflow)
5931     return 0;
5932
5933   if(!isPCFL(pcflow) || !isPCFL(pcflowLink->pcflow))
5934     return 0;
5935
5936   if(pcflow->firstBank == -1)
5937     return 0;
5938
5939
5940   if(pcflowLink->pcflow->firstBank == -1) {
5941     pCodeFlowLink *pctl = setFirstItem( toORfrom ?
5942                                         pcflowLink->pcflow->to :
5943                                         pcflowLink->pcflow->from);
5944     return compareBankFlow(pcflow, pctl, toORfrom);
5945   }
5946
5947   if(toORfrom) {
5948     if(pcflow->lastBank == pcflowLink->pcflow->firstBank)
5949       return 0;
5950
5951     pcflowLink->bank_conflict++;
5952     pcflowLink->pcflow->FromConflicts++;
5953     pcflow->ToConflicts++;
5954   } else {
5955
5956     if(pcflow->firstBank == pcflowLink->pcflow->lastBank)
5957       return 0;
5958
5959     pcflowLink->bank_conflict++;
5960     pcflowLink->pcflow->ToConflicts++;
5961     pcflow->FromConflicts++;
5962
5963   }
5964   /*
5965   fprintf(stderr,"compare flow found conflict: seq %d from conflicts %d, to conflicts %d\n",
5966           pcflowLink->pcflow->pc.seq,
5967           pcflowLink->pcflow->FromConflicts,
5968           pcflowLink->pcflow->ToConflicts);
5969   */
5970   return 1;
5971
5972 }
5973
5974 #if 0
5975 /*-----------------------------------------------------------------*/
5976 /*-----------------------------------------------------------------*/
5977 static void DumpFlow(pBlock *pb)
5978 {
5979   pCode *pc=NULL;
5980   pCode *pcflow;
5981   pCodeFlowLink *pcfl;
5982
5983
5984   fprintf(stderr,"Dump flow \n");
5985   pb->pcHead->print(stderr, pb->pcHead);
5986
5987   pcflow = pic16_findNextpCode(pb->pcHead, PC_FLOW);
5988   pcflow->print(stderr,pcflow);
5989
5990   for( pcflow = pic16_findNextpCode(pb->pcHead, PC_FLOW);
5991        pcflow != NULL;
5992        pcflow = pic16_findNextpCode(pcflow->next, PC_FLOW) ) {
5993
5994     if(!isPCFL(pcflow)) {
5995       fprintf(stderr, "DumpFlow - pcflow is not a flow object ");
5996       continue;
5997     }
5998     fprintf(stderr,"dumping: ");
5999     pcflow->print(stderr,pcflow);
6000     FlowStats(PCFL(pcflow));
6001
6002     for(pcfl = setFirstItem(PCFL(pcflow)->to); pcfl; pcfl=setNextItem(PCFL(pcflow)->to)) {
6003
6004       pc = PCODE(pcfl->pcflow);
6005
6006       fprintf(stderr, "    from seq %d:\n",pc->seq);
6007       if(!isPCFL(pc)) {
6008         fprintf(stderr,"oops dumpflow - from is not a pcflow\n");
6009         pc->print(stderr,pc);
6010       }
6011
6012     }
6013
6014     for(pcfl = setFirstItem(PCFL(pcflow)->to); pcfl; pcfl=setNextItem(PCFL(pcflow)->to)) {
6015
6016       pc = PCODE(pcfl->pcflow);
6017
6018       fprintf(stderr, "    to seq %d:\n",pc->seq);
6019       if(!isPCFL(pc)) {
6020         fprintf(stderr,"oops dumpflow - to is not a pcflow\n");
6021         pc->print(stderr,pc);
6022       }
6023
6024     }
6025
6026   }
6027
6028 }
6029 #endif
6030 /*-----------------------------------------------------------------*/
6031 /*-----------------------------------------------------------------*/
6032 static int OptimizepBlock(pBlock *pb)
6033 {
6034   pCode *pc, *pcprev;
6035   int matches =0;
6036
6037   if(!pb || !peepOptimizing)
6038     return 0;
6039
6040   DFPRINTF((stderr," Optimizing pBlock: %c\n",getpBlock_dbName(pb)));
6041 /*
6042   for(pc = pb->pcHead; pc; pc = pc->next)
6043     matches += pic16_pCodePeepMatchRule(pc);
6044 */
6045
6046   pc = pic16_findNextInstruction(pb->pcHead);
6047   if(!pc)
6048     return 0;
6049
6050   pcprev = pc->prev;
6051   do {
6052
6053
6054     if(pic16_pCodePeepMatchRule(pc)) {
6055
6056       matches++;
6057
6058       if(pcprev)
6059         pc = pic16_findNextInstruction(pcprev->next);
6060       else
6061         pc = pic16_findNextInstruction(pb->pcHead);
6062     } else
6063       pc = pic16_findNextInstruction(pc->next);
6064   } while(pc);
6065
6066   if(matches)
6067     DFPRINTF((stderr," Optimizing pBlock: %c - matches=%d\n",getpBlock_dbName(pb),matches));
6068   return matches;
6069
6070 }
6071
6072 /*-----------------------------------------------------------------*/
6073 /*-----------------------------------------------------------------*/
6074 static pCode * findInstructionUsingLabel(pCodeLabel *pcl, pCode *pcs)
6075 {
6076   pCode *pc;
6077
6078   for(pc = pcs; pc; pc = pc->next) {
6079
6080     if(((pc->type == PC_OPCODE) || (pc->type == PC_INLINE)) &&
6081        (PCI(pc)->pcop) &&
6082        (PCI(pc)->pcop->type == PO_LABEL) &&
6083        (PCOLAB(PCI(pc)->pcop)->key == pcl->key))
6084       return pc;
6085   }
6086
6087
6088   return NULL;
6089 }
6090
6091 /*-----------------------------------------------------------------*/
6092 /*-----------------------------------------------------------------*/
6093 static void exchangeLabels(pCodeLabel *pcl, pCode *pc)
6094 {
6095
6096   char *s=NULL;
6097
6098   if(isPCI(pc) &&
6099      (PCI(pc)->pcop) &&
6100      (PCI(pc)->pcop->type == PO_LABEL)) {
6101
6102     pCodeOpLabel *pcol = PCOLAB(PCI(pc)->pcop);
6103
6104 //      fprintf(stderr,"changing label key from %d to %d\n",pcol->key, pcl->key);
6105     if(pcol->pcop.name)
6106       free(pcol->pcop.name);
6107
6108     /* If the key is negative, then we (probably) have a label to
6109      * a function and the name is already defined */
6110
6111     if(pcl->key>0)
6112       sprintf(s=buffer,"_%05d_DS_",pcl->key);
6113     else
6114       s = pcl->label;
6115
6116     //sprintf(buffer,"_%05d_DS_",pcl->key);
6117     if(!s) {
6118       fprintf(stderr, "ERROR %s:%d function label is null\n",__FUNCTION__,__LINE__);
6119     }
6120     pcol->pcop.name = Safe_strdup(s);
6121     pcol->key = pcl->key;
6122     //pc->print(stderr,pc);
6123
6124   }
6125
6126
6127 }
6128
6129 /*-----------------------------------------------------------------*/
6130 /* pBlockRemoveUnusedLabels - remove the pCode labels from the     */
6131 /*                            pCode chain if they're not used.     */
6132 /*-----------------------------------------------------------------*/
6133 static void pBlockRemoveUnusedLabels(pBlock *pb)
6134 {
6135   pCode *pc; pCodeLabel *pcl;
6136
6137   if(!pb)
6138     return;
6139
6140   for(pc = pb->pcHead; (pc=pic16_findNextInstruction(pc->next)) != NULL; ) {
6141
6142     pBranch *pbr = PCI(pc)->label;
6143     if(pbr && pbr->next) {
6144       pCode *pcd = pb->pcHead;
6145
6146 //      fprintf(stderr, "multiple labels\n");
6147 //      pc->print(stderr,pc);
6148
6149       pbr = pbr->next;
6150       while(pbr) {
6151
6152         while ( (pcd = findInstructionUsingLabel(PCL(PCI(pc)->label->pc), pcd)) != NULL) {
6153           //fprintf(stderr,"Used by:\n");
6154           //pcd->print(stderr,pcd);
6155
6156           exchangeLabels(PCL(pbr->pc),pcd);
6157
6158           pcd = pcd->next;
6159         }
6160         pbr = pbr->next;
6161       }
6162     }
6163   }
6164
6165   for(pc = pb->pcHead; pc; pc = pc->next) {
6166
6167     if(isPCL(pc)) // pc->type == PC_LABEL)
6168       pcl = PCL(pc);
6169     else if (isPCI(pc) && PCI(pc)->label) //((pc->type == PC_OPCODE) && PCI(pc)->label)
6170       pcl = PCL(PCI(pc)->label->pc);
6171     else continue;
6172
6173 //      fprintf(stderr," found  A LABEL !!! key = %d, %s\n", pcl->key,pcl->label);
6174
6175     /* This pCode is a label, so search the pBlock to see if anyone
6176      * refers to it */
6177
6178     if( (pcl->key>0) && (!findInstructionUsingLabel(pcl, pb->pcHead))) {
6179     //if( !findInstructionUsingLabel(pcl, pb->pcHead)) {
6180       /* Couldn't find an instruction that refers to this label
6181        * So, unlink the pCode label from it's pCode chain
6182        * and destroy the label */
6183 //      fprintf(stderr," removed  A LABEL !!! key = %d, %s\n", pcl->key,pcl->label);
6184
6185       DFPRINTF((stderr," !!! REMOVED A LABEL !!! key = %d, %s\n", pcl->key,pcl->label));
6186       if(pc->type == PC_LABEL) {
6187         pic16_unlinkpCode(pc);
6188         pCodeLabelDestruct(pc);
6189       } else {
6190         unlinkpCodeFromBranch(pc, PCODE(pcl));
6191         /*if(pc->label->next == NULL && pc->label->pc == NULL) {
6192           free(pc->label);
6193         }*/
6194       }
6195
6196     }
6197   }
6198
6199 }
6200
6201
6202 /*-----------------------------------------------------------------*/
6203 /* pic16_pBlockMergeLabels - remove the pCode labels from the pCode      */
6204 /*                     chain and put them into pBranches that are  */
6205 /*                     associated with the appropriate pCode       */
6206 /*                     instructions.                               */
6207 /*-----------------------------------------------------------------*/
6208 void pic16_pBlockMergeLabels(pBlock *pb)
6209 {
6210   pBranch *pbr;
6211   pCode *pc, *pcnext=NULL;
6212
6213   if(!pb)
6214     return;
6215
6216   /* First, Try to remove any unused labels */
6217   //pBlockRemoveUnusedLabels(pb);
6218
6219   /* Now loop through the pBlock and merge the labels with the opcodes */
6220
6221   pc = pb->pcHead;
6222   //  for(pc = pb->pcHead; pc; pc = pc->next) {
6223
6224   while(pc) {
6225     pCode *pcn = pc->next;
6226
6227     if(pc->type == PC_LABEL) {
6228
6229 //      fprintf(stderr," checking merging label %s\n",PCL(pc)->label);
6230 //      fprintf(stderr,"Checking label key = %d\n",PCL(pc)->key);
6231
6232       if((pcnext = pic16_findNextInstruction(pc) )) {
6233
6234 //              pcnext->print(stderr, pcnext);
6235
6236         // Unlink the pCode label from it's pCode chain
6237         pic16_unlinkpCode(pc);
6238
6239 //      fprintf(stderr,"Merged label key = %d\n",PCL(pc)->key);
6240         // And link it into the instruction's pBranch labels. (Note, since
6241         // it's possible to have multiple labels associated with one instruction
6242         // we must provide a means to accomodate the additional labels. Thus
6243         // the labels are placed into the singly-linked list "label" as
6244         // opposed to being a single member of the pCodeInstruction.)
6245
6246         //_ALLOC(pbr,sizeof(pBranch));
6247 #if 1
6248         pbr = Safe_calloc(1,sizeof(pBranch));
6249         pbr->pc = pc;
6250         pbr->next = NULL;
6251
6252         PCI(pcnext)->label = pic16_pBranchAppend(PCI(pcnext)->label,pbr);
6253 #endif
6254       } else {
6255         if(pic16_pcode_verbose)
6256         fprintf(stderr, "WARNING: couldn't associate label %s with an instruction\n",PCL(pc)->label);
6257       }
6258     } else if(pc->type == PC_CSOURCE) {
6259
6260       /* merge the source line symbolic info into the next instruction */
6261       if((pcnext = pic16_findNextInstruction(pc) )) {
6262
6263         // Unlink the pCode label from it's pCode chain
6264         pic16_unlinkpCode(pc);
6265         PCI(pcnext)->cline = PCCS(pc);
6266         //fprintf(stderr, "merging CSRC\n");
6267         //genericPrint(stderr,pcnext);
6268       }
6269
6270     }
6271     pc = pcn;
6272   }
6273   pBlockRemoveUnusedLabels(pb);
6274
6275 }
6276
6277 /*-----------------------------------------------------------------*/
6278 /*-----------------------------------------------------------------*/
6279 static int OptimizepCode(char dbName)
6280 {
6281 #define MAX_PASSES 4
6282
6283   int matches = 0;
6284   int passes = 0;
6285   pBlock *pb;
6286
6287   if(!the_pFile)
6288     return 0;
6289
6290   DFPRINTF((stderr," Optimizing pCode\n"));
6291
6292   do {
6293     matches = 0;
6294     for(pb = the_pFile->pbHead; pb; pb = pb->next) {
6295       if('*' == dbName || getpBlock_dbName(pb) == dbName)
6296         matches += OptimizepBlock(pb);
6297     }
6298   }
6299   while(matches && ++passes < MAX_PASSES);
6300
6301   return matches;
6302 }
6303
6304 /*-----------------------------------------------------------------*/
6305 /* pic16_popCopyGPR2Bit - copy a pcode operator                          */
6306 /*-----------------------------------------------------------------*/
6307
6308 pCodeOp *pic16_popCopyGPR2Bit(pCodeOp *pc, int bitval)
6309 {
6310   pCodeOp *pcop;
6311
6312   pcop = pic16_newpCodeOpBit(pc->name, bitval, 0);
6313
6314   if( !( (pcop->type == PO_LABEL) ||
6315          (pcop->type == PO_LITERAL) ||
6316          (pcop->type == PO_STR) ))
6317     PCOR(pcop)->r = PCOR(pc)->r;  /* This is dangerous... */
6318     PCOR(pcop)->r->wasUsed = 1;
6319
6320   return pcop;
6321 }
6322
6323
6324 /*----------------------------------------------------------------------*
6325  * pic16_areRegsSame - check to see if the names of two registers match *
6326  *----------------------------------------------------------------------*/
6327 int pic16_areRegsSame(regs *r1, regs *r2)
6328 {
6329         if(!strcmp(r1->name, r2->name))return 1;
6330
6331   return 0;
6332 }
6333
6334
6335 /*-----------------------------------------------------------------*/
6336 /*-----------------------------------------------------------------*/
6337 static void pic16_FixRegisterBanking(pBlock *pb)
6338 {
6339   pCode *pc=NULL;
6340   pCode *pcprev=NULL;
6341   regs *reg, *prevreg;
6342
6343         if(!pb)
6344                 return;
6345
6346         pc = pic16_findNextpCode(pb->pcHead, PC_OPCODE);
6347         if(!pc)
6348                 return;
6349
6350         /* loop through all of the flow blocks with in one pblock */
6351
6352 //      fprintf(stderr,"%s:%d: Register banking\n", __FUNCTION__, __LINE__);
6353
6354   prevreg = NULL;
6355   do {
6356     /* at this point, pc should point to a PC_FLOW object */
6357     /* for each flow block, determine the register banking
6358        requirements */
6359
6360       if(isPCI(pc) && !PCI(pc)->is2MemOp) {
6361                 reg = pic16_getRegFromInstruction(pc);
6362
6363 #if 0
6364                 fprintf(stderr, "reg = %p\n", reg);
6365                 if(reg) {
6366                         fprintf(stderr, "%s:%d:  %s  %d\n",__FUNCTION__, __LINE__, reg->name, reg->rIdx);
6367                         fprintf(stderr, "addr = 0x%03x, bank = %d, bit=%d\tmapped = %d sfr=%d fix=%d\n",
6368                                 reg->address,REG_BANK(reg),reg->isBitField, reg->isMapped,
6369                                 pic16_finalMapping[ reg->address ].isSFR, reg->isFixed);
6370                 }
6371 #endif
6372
6373                 /* we can be 99% that within a pBlock, between two consequtive
6374                  * refernces to the same register, the extra banksel is needless */
6375
6376                 if((reg && !isACCESS_BANK(reg) && (isBankInstruction(pc) == -1))
6377                         && (!isPCI_LIT(pc))
6378                         && (PCI(pc)->op != POC_CALL)
6379
6380                         && ( ((pic16_options.opt_banksel>0)
6381                                 && (!prevreg || (prevreg && !pic16_areRegsSame(reg, prevreg))))
6382                             || (!pic16_options.opt_banksel)
6383                            )
6384                                    )
6385                            {
6386                   /* Examine the instruction before this one to make sure it is
6387                    * not a skip type instruction */
6388                         pcprev = findPrevpCode(pc->prev, PC_OPCODE);
6389
6390                         /* FIXME: if previous is SKIP pCode, we should move the BANKSEL
6391                          * before SKIP, but we have to check if the SKIP uses BANKSEL, etc... */
6392                         if(!pcprev || (pcprev && !isPCI_SKIP(pcprev))) {
6393                                 prevreg = reg;
6394                                 if(!pic16_options.no_banksel)
6395                                         insertBankSwitch(0, pc);
6396                         }
6397                 }
6398
6399         pcprev = pc;
6400
6401       }
6402
6403       pc = pc->next;
6404   }while (pc);
6405
6406 #if 0
6407   if(pcprev && cur_bank) {
6408
6409     int pos = 1;  /* Assume that the bank switch instruction(s)
6410                    * are inserted after this instruction */
6411
6412     if((PCI(pcprev)->op == POC_RETLW) ||
6413        (PCI(pcprev)->op == POC_RETURN) ||
6414        (PCI(pcprev)->op == POC_RETFIE)) {
6415
6416       /* oops, a RETURN - we need to switch banks *before* the RETURN */
6417
6418       pos = 0;
6419
6420     }
6421
6422     /* Brute force - make sure that we point to bank 0 at the
6423      * end of each flow block */
6424
6425 //    insertBankSwitch(pos, pcprev, 0);
6426 /*
6427     new_pc = pic16_newpCode(POC_MOVLB, pic16_newpCodeOpLit(0));
6428     pic16_pCodeInsertAfter(pcprev, new_pc);
6429 */
6430     cur_bank = 0;
6431     //fprintf(stderr, "Brute force switch\n");
6432   }
6433 #endif
6434
6435 }
6436
6437
6438 static void pBlockDestruct(pBlock *pb)
6439 {
6440
6441   if(!pb)
6442     return;
6443
6444
6445   free(pb);
6446
6447 }
6448
6449 /*-----------------------------------------------------------------*/
6450 /* void mergepBlocks(char dbName) - Search for all pBlocks with the*/
6451 /*                                  name dbName and combine them   */
6452 /*                                  into one block                 */
6453 /*-----------------------------------------------------------------*/
6454 static void mergepBlocks(char dbName)
6455 {
6456
6457   pBlock *pb, *pbmerged = NULL,*pbn;
6458
6459   pb = the_pFile->pbHead;
6460
6461   //fprintf(stderr," merging blocks named %c\n",dbName);
6462   while(pb) {
6463
6464     pbn = pb->next;
6465     //fprintf(stderr,"looking at %c\n",getpBlock_dbName(pb));
6466     if( getpBlock_dbName(pb) == dbName) {
6467
6468       //fprintf(stderr," merged block %c\n",dbName);
6469
6470       if(!pbmerged) {
6471         pbmerged = pb;
6472       } else {
6473         pic16_addpCode2pBlock(pbmerged, pb->pcHead);
6474         /* pic16_addpCode2pBlock doesn't handle the tail: */
6475         pbmerged->pcTail = pb->pcTail;
6476
6477         pb->prev->next = pbn;
6478         if(pbn)
6479           pbn->prev = pb->prev;
6480
6481
6482         pBlockDestruct(pb);
6483       }
6484       //pic16_printpBlock(stderr, pbmerged);
6485     }
6486     pb = pbn;
6487   }
6488
6489 }
6490
6491 /*-----------------------------------------------------------------*/
6492 /* AnalyzeFlow - Examine the flow of the code and optimize         */
6493 /*                                                                 */
6494 /* level 0 == minimal optimization                                 */
6495 /*   optimize registers that are used only by two instructions     */
6496 /* level 1 == maximal optimization                                 */
6497 /*   optimize by looking at pairs of instructions that use the     */
6498 /*   register.                                                     */
6499 /*-----------------------------------------------------------------*/
6500
6501 static void AnalyzeFlow(int level)
6502 {
6503   static int times_called=0;
6504   pBlock *pb;
6505
6506         if(!the_pFile) {
6507
6508                 /* remove unused allocated registers before exiting */
6509                 pic16_RemoveUnusedRegisters();
6510
6511           return;
6512         }
6513
6514
6515   /* if this is not the first time this function has been called,
6516      then clean up old flow information */
6517         if(times_called++) {
6518                 for(pb = the_pFile->pbHead; pb; pb = pb->next)
6519                         unBuildFlow(pb);
6520
6521                 pic16_RegsUnMapLiveRanges();
6522         }
6523
6524         GpcFlowSeq = 1;
6525
6526   /* Phase 2 - Flow Analysis - Register Banking
6527    *
6528    * In this phase, the individual flow blocks are examined
6529    * and register banking is fixed.
6530    */
6531
6532 #if 0
6533         for(pb = the_pFile->pbHead; pb; pb = pb->next)
6534                 pic16_FixRegisterBanking(pb);
6535 #endif
6536
6537   /* Phase 2 - Flow Analysis
6538    *
6539    * In this phase, the pCode is partition into pCodeFlow
6540    * blocks. The flow blocks mark the points where a continuous
6541    * stream of instructions changes flow (e.g. because of
6542    * a call or goto or whatever).
6543    */
6544
6545         for(pb = the_pFile->pbHead; pb; pb = pb->next)
6546                 pic16_BuildFlow(pb);
6547
6548
6549   /* Phase 2 - Flow Analysis - linking flow blocks
6550    *
6551    * In this phase, the individual flow blocks are examined
6552    * to determine their order of excution.
6553    */
6554
6555         for(pb = the_pFile->pbHead; pb; pb = pb->next)
6556                 LinkFlow(pb);
6557
6558   /* Phase 3 - Flow Analysis - Flow Tree
6559    *
6560    * In this phase, the individual flow blocks are examined
6561    * to determine their order of execution.
6562    */
6563
6564         for(pb = the_pFile->pbHead; pb; pb = pb->next)
6565                 pic16_BuildFlowTree(pb);
6566
6567
6568   /* Phase x - Flow Analysis - Used Banks
6569    *
6570    * In this phase, the individual flow blocks are examined
6571    * to determine the Register Banks they use
6572    */
6573
6574 #if 0
6575         for(pb = the_pFile->pbHead; pb; pb = pb->next)
6576                 FixBankFlow(pb);
6577 #endif
6578
6579
6580         for(pb = the_pFile->pbHead; pb; pb = pb->next)
6581                 pic16_pCodeRegMapLiveRanges(pb);
6582
6583         pic16_RemoveUnusedRegisters();
6584
6585   //  for(pb = the_pFile->pbHead; pb; pb = pb->next)
6586         pic16_pCodeRegOptimizeRegUsage(level);
6587
6588
6589         if(!options.nopeep)
6590                 OptimizepCode('*');
6591
6592
6593 #if 0
6594         for(pb = the_pFile->pbHead; pb; pb = pb->next)
6595                 DumpFlow(pb);
6596 #endif
6597
6598   /* debug stuff */
6599         for(pb = the_pFile->pbHead; pb; pb = pb->next) {
6600           pCode *pcflow;
6601                 for( pcflow = pic16_findNextpCode(pb->pcHead, PC_FLOW);
6602                         (pcflow = pic16_findNextpCode(pcflow, PC_FLOW)) != NULL;
6603                         pcflow = pcflow->next) {
6604
6605                         FillFlow(PCFL(pcflow));
6606                 }
6607         }
6608
6609 #if 0
6610         for(pb = the_pFile->pbHead; pb; pb = pb->next) {
6611           pCode *pcflow;
6612
6613                 for( pcflow = pic16_findNextpCode(pb->pcHead, PC_FLOW);
6614                         (pcflow = pic16_findNextpCode(pcflow, PC_FLOW)) != NULL;
6615                         pcflow = pcflow->next) {
6616
6617                         FlowStats(PCFL(pcflow));
6618                 }
6619         }
6620 #endif
6621 }
6622
6623 /* VR -- no need to analyze banking in flow, but left here :
6624  *      1. because it may be used in the future for other purposes
6625  *      2. because if omitted we'll miss some optimization done here
6626  *
6627  * Perhaps I should rename it to something else
6628  */
6629
6630 /*-----------------------------------------------------------------*/
6631 /* pic16_AnalyzeBanking - Called after the memory addresses have been    */
6632 /*                  assigned to the registers.                     */
6633 /*                                                                 */
6634 /*-----------------------------------------------------------------*/
6635
6636 void pic16_AnalyzeBanking(void)
6637 {
6638   pBlock  *pb;
6639
6640         if(!pic16_picIsInitialized()) {
6641                 fprintf(stderr,"Temporary ERROR: at the moment you have to use\n");
6642                 fprintf(stderr,"an include file create by inc2h.pl. See SDCC source:\n");
6643                 fprintf(stderr,"support/scripts/inc2h.pl\n");
6644                 fprintf(stderr,"this is a nuisance bug that will be fixed shortly\n");
6645
6646                 /* I think it took a long long time to fix this bug! ;-) -- VR */
6647
6648                 exit(1);
6649         }
6650
6651
6652         /* Phase x - Flow Analysis - Used Banks
6653          *
6654          * In this phase, the individual flow blocks are examined
6655          * to determine the Register Banks they use
6656          */
6657
6658         AnalyzeFlow(0);
6659         AnalyzeFlow(1);
6660
6661 //      for(pb = the_pFile->pbHead; pb; pb = pb->next)
6662 //              BanksUsedFlow(pb);
6663
6664         if(!the_pFile)return;
6665
6666         for(pb = the_pFile->pbHead; pb; pb = pb->next) {
6667 //              fprintf(stderr, "%s:%d: Fix register banking in pb= 0x%p\n", __FILE__, __LINE__, pb);
6668                 pic16_FixRegisterBanking(pb);
6669         }
6670
6671 }
6672
6673 /*-----------------------------------------------------------------*/
6674 /* buildCallTree - Look at the flow and extract all of the calls.  */
6675 /*-----------------------------------------------------------------*/
6676 static set *register_usage(pBlock *pb);
6677
6678 static void buildCallTree(void    )
6679 {
6680   pBranch *pbr;
6681   pBlock  *pb;
6682   pCode   *pc;
6683
6684   if(!the_pFile)
6685     return;
6686
6687
6688
6689   /* Now build the call tree.
6690      First we examine all of the pCodes for functions.
6691      Keep in mind that the function boundaries coincide
6692      with pBlock boundaries.
6693
6694      The algorithm goes something like this:
6695      We have two nested loops. The outer loop iterates
6696      through all of the pBlocks/functions. The inner
6697      loop iterates through all of the pCodes for
6698      a given pBlock. When we begin iterating through
6699      a pBlock, the variable pc_fstart, pCode of the start
6700      of a function, is cleared. We then search for pCodes
6701      of type PC_FUNCTION. When one is encountered, we
6702      initialize pc_fstart to this and at the same time
6703      associate a new pBranch object that signifies a
6704      branch entry. If a return is found, then this signifies
6705      a function exit point. We'll link the pCodes of these
6706      returns to the matching pc_fstart.
6707
6708      When we're done, a doubly linked list of pBranches
6709      will exist. The head of this list is stored in
6710      `the_pFile', which is the meta structure for all
6711      of the pCode. Look at the pic16_printCallTree function
6712      on how the pBranches are linked together.
6713
6714    */
6715   for(pb = the_pFile->pbHead; pb; pb = pb->next) {
6716     pCode *pc_fstart=NULL;
6717     for(pc = pb->pcHead; pc; pc = pc->next) {
6718       if(isPCF(pc)) {
6719         if (PCF(pc)->fname) {
6720
6721           if(STRCASECMP(PCF(pc)->fname, "_main") == 0) {
6722             //fprintf(stderr," found main \n");
6723             pb->cmemmap = NULL;  /* FIXME do we need to free ? */
6724             pb->dbName = 'M';
6725           }
6726
6727           pbr = Safe_calloc(1,sizeof(pBranch));
6728           pbr->pc = pc_fstart = pc;
6729           pbr->next = NULL;
6730
6731           the_pFile->functions = pic16_pBranchAppend(the_pFile->functions,pbr);
6732
6733           // Here's a better way of doing the same:
6734           addSet(&pb->function_entries, pc);
6735
6736         } else {
6737           // Found an exit point in a function, e.g. return
6738           // (Note, there may be more than one return per function)
6739           if(pc_fstart)
6740             pBranchLink(PCF(pc_fstart), PCF(pc));
6741
6742           addSet(&pb->function_exits, pc);
6743         }
6744       } else if(isCALL(pc)) {
6745         addSet(&pb->function_calls,pc);
6746       }
6747     }
6748   }
6749
6750
6751 #if 0
6752   /* This is not needed because currently all register used
6753    * by a function are stored in stack -- VR */
6754
6755   /* Re-allocate the registers so that there are no collisions
6756    * between local variables when one function call another */
6757
6758   // this is weird...
6759   //  pic16_deallocateAllRegs();
6760
6761   for(pb = the_pFile->pbHead; pb; pb = pb->next) {
6762     if(!pb->visited)
6763       register_usage(pb);
6764   }
6765 #endif
6766
6767 }
6768
6769 /*-----------------------------------------------------------------*/
6770 /* pic16_AnalyzepCode - parse the pCode that has been generated and form */
6771 /*                all of the logical connections.                  */
6772 /*                                                                 */
6773 /* Essentially what's done here is that the pCode flow is          */
6774 /* determined.                                                     */
6775 /*-----------------------------------------------------------------*/
6776
6777 void pic16_AnalyzepCode(char dbName)
6778 {
6779   pBlock *pb;
6780   int i,changes;
6781
6782   if(!the_pFile)
6783     return;
6784
6785   mergepBlocks('D');
6786
6787
6788   /* Phase 1 - Register allocation and peep hole optimization
6789    *
6790    * The first part of the analysis is to determine the registers
6791    * that are used in the pCode. Once that is done, the peep rules
6792    * are applied to the code. We continue to loop until no more
6793    * peep rule optimizations are found (or until we exceed the
6794    * MAX_PASSES threshold).
6795    *
6796    * When done, the required registers will be determined.
6797    *
6798    */
6799   i = 0;
6800   do {
6801
6802     DFPRINTF((stderr," Analyzing pCode: PASS #%d\n",i+1));
6803     //fprintf(stderr," Analyzing pCode: PASS #%d\n",i+1);
6804
6805     /* First, merge the labels with the instructions */
6806     for(pb = the_pFile->pbHead; pb; pb = pb->next) {
6807       if('*' == dbName || getpBlock_dbName(pb) == dbName) {
6808
6809         DFPRINTF((stderr," analyze and merging block %c\n",dbName));
6810         //fprintf(stderr," analyze and merging block %c\n",dbName);
6811         pic16_pBlockMergeLabels(pb);
6812         AnalyzepBlock(pb);
6813       } else {
6814         DFPRINTF((stderr," skipping block analysis dbName=%c blockname=%c\n",dbName,getpBlock_dbName));
6815       }
6816     }
6817
6818         if(!options.nopeep)
6819                 changes = OptimizepCode(dbName);
6820         else changes = 0;
6821
6822   } while(changes && (i++ < MAX_PASSES));
6823
6824   buildCallTree();
6825 }
6826
6827 /*-----------------------------------------------------------------*/
6828 /* ispCodeFunction - returns true if *pc is the pCode of a         */
6829 /*                   function                                      */
6830 /*-----------------------------------------------------------------*/
6831 static bool ispCodeFunction(pCode *pc)
6832 {
6833
6834   if(pc && pc->type == PC_FUNCTION && PCF(pc)->fname)
6835     return 1;
6836
6837   return 0;
6838 }
6839
6840 /*-----------------------------------------------------------------*/
6841 /* findFunction - Search for a function by name (given the name)   */
6842 /*                in the set of all functions that are in a pBlock */
6843 /* (note - I expect this to change because I'm planning to limit   */
6844 /*  pBlock's to just one function declaration                      */
6845 /*-----------------------------------------------------------------*/
6846 static pCode *findFunction(char *fname)
6847 {
6848   pBlock *pb;
6849   pCode *pc;
6850   if(!fname)
6851     return NULL;
6852
6853   for(pb = the_pFile->pbHead; pb; pb = pb->next) {
6854
6855     pc = setFirstItem(pb->function_entries);
6856     while(pc) {
6857
6858       if((pc->type == PC_FUNCTION) &&
6859          (PCF(pc)->fname) &&
6860          (strcmp(fname, PCF(pc)->fname)==0))
6861         return pc;
6862
6863       pc = setNextItem(pb->function_entries);
6864
6865     }
6866
6867   }
6868   return NULL;
6869 }
6870
6871 static void MarkUsedRegisters(set *regset)
6872 {
6873
6874   regs *r1,*r2;
6875
6876   for(r1=setFirstItem(regset); r1; r1=setNextItem(regset)) {
6877 //      fprintf(stderr, "marking register = %s\t", r1->name);
6878     r2 = pic16_regWithIdx(r1->rIdx);
6879 //      fprintf(stderr, "to register = %s\n", r2->name);
6880     r2->isFree = 0;
6881     r2->wasUsed = 1;
6882   }
6883 }
6884
6885 static void pBlockStats(FILE *of, pBlock *pb)
6886 {
6887
6888   pCode *pc;
6889   regs  *r;
6890
6891         if(!pic16_pcode_verbose)return;
6892
6893   fprintf(of,";***\n;  pBlock Stats: dbName = %c\n;***\n",getpBlock_dbName(pb));
6894
6895   // for now just print the first element of each set
6896   pc = setFirstItem(pb->function_entries);
6897   if(pc) {
6898     fprintf(of,";entry:  ");
6899     pc->print(of,pc);
6900   }
6901   pc = setFirstItem(pb->function_exits);
6902   if(pc) {
6903     fprintf(of,";has an exit\n");
6904     //pc->print(of,pc);
6905   }
6906
6907   pc = setFirstItem(pb->function_calls);
6908   if(pc) {
6909     fprintf(of,";functions called:\n");
6910
6911     while(pc) {
6912       if(pc->type == PC_OPCODE && PCI(pc)->op == POC_CALL) {
6913         fprintf(of,";   %s\n",pic16_get_op_from_instruction(PCI(pc)));
6914       }
6915       pc = setNextItem(pb->function_calls);
6916     }
6917   }
6918
6919   r = setFirstItem(pb->tregisters);
6920   if(r) {
6921     int n = elementsInSet(pb->tregisters);
6922
6923     fprintf(of,";%d compiler assigned register%c:\n",n, ( (n!=1) ? 's' : ' '));
6924
6925     while (r) {
6926       fprintf(of,";   %s\n",r->name);
6927       r = setNextItem(pb->tregisters);
6928     }
6929   }
6930 }
6931
6932 /*-----------------------------------------------------------------*/
6933 /*-----------------------------------------------------------------*/
6934 #if 0
6935 static void sequencepCode(void)
6936 {
6937   pBlock *pb;
6938   pCode *pc;
6939
6940
6941   for(pb = the_pFile->pbHead; pb; pb = pb->next) {
6942
6943     pb->seq = GpCodeSequenceNumber+1;
6944
6945     for( pc = pb->pcHead; pc; pc = pc->next)
6946       pc->seq = ++GpCodeSequenceNumber;
6947   }
6948
6949 }
6950 #endif
6951
6952 /*-----------------------------------------------------------------*/
6953 /*-----------------------------------------------------------------*/
6954 static set *register_usage(pBlock *pb)
6955 {
6956   pCode *pc,*pcn;
6957   set *registers=NULL;
6958   set *registersInCallPath = NULL;
6959
6960   /* check recursion */
6961
6962   pc = setFirstItem(pb->function_entries);
6963
6964   if(!pc)
6965     return registers;
6966
6967   pb->visited = 1;
6968
6969   if(pc->type != PC_FUNCTION)
6970     fprintf(stderr,"%s, first pc is not a function???\n",__FUNCTION__);
6971
6972   pc = setFirstItem(pb->function_calls);
6973   for( ; pc; pc = setNextItem(pb->function_calls)) {
6974
6975     if(pc->type == PC_OPCODE && PCI(pc)->op == POC_CALL) {
6976       char *dest = pic16_get_op_from_instruction(PCI(pc));
6977
6978       pcn = findFunction(dest);
6979       if(pcn)
6980         registersInCallPath = register_usage(pcn->pb);
6981     } else
6982       fprintf(stderr,"BUG? pCode isn't a POC_CALL %d\n",__LINE__);
6983
6984   }
6985
6986 #ifdef PCODE_DEBUG
6987   pBlockStats(stderr,pb);  // debug
6988 #endif
6989
6990   // Mark the registers in this block as used.
6991
6992   MarkUsedRegisters(pb->tregisters);
6993   if(registersInCallPath) {
6994     /* registers were used in the functions this pBlock has called */
6995     /* so now, we need to see if these collide with the ones we are */
6996     /* using here */
6997
6998     regs *r1,*r2, *newreg;
6999
7000     DFPRINTF((stderr,"comparing registers\n"));
7001
7002     r1 = setFirstItem(registersInCallPath);
7003     while(r1) {
7004
7005       r2 = setFirstItem(pb->tregisters);
7006
7007       while(r2 && (r1->type != REG_STK)) {
7008
7009         if(r2->rIdx == r1->rIdx) {
7010           newreg = pic16_findFreeReg(REG_GPR);
7011
7012
7013           if(!newreg) {
7014             DFPRINTF((stderr,"Bummer, no more registers.\n"));
7015             exit(1);
7016           }
7017
7018           DFPRINTF((stderr,"Cool found register collision nIdx=%d moving to %d\n",
7019                   r1->rIdx, newreg->rIdx));
7020           r2->rIdx = newreg->rIdx;
7021           //if(r2->name) free(r2->name);
7022           if(newreg->name)
7023             r2->name = Safe_strdup(newreg->name);
7024           else
7025             r2->name = NULL;
7026           newreg->isFree = 0;
7027           newreg->wasUsed = 1;
7028         }
7029         r2 = setNextItem(pb->tregisters);
7030       }
7031
7032       r1 = setNextItem(registersInCallPath);
7033     }
7034
7035     /* Collisions have been resolved. Now free the registers in the call path */
7036     r1 = setFirstItem(registersInCallPath);
7037     while(r1) {
7038       if(r1->type != REG_STK) {
7039         newreg = pic16_regWithIdx(r1->rIdx);
7040         newreg->isFree = 1;
7041       }
7042       r1 = setNextItem(registersInCallPath);
7043     }
7044
7045   }// else
7046   //    MarkUsedRegisters(pb->registers);
7047
7048   registers = unionSets(pb->tregisters, registersInCallPath, THROW_NONE);
7049 #ifdef PCODE_DEBUG
7050   if(registers)
7051     DFPRINTF((stderr,"returning regs\n"));
7052   else
7053     DFPRINTF((stderr,"not returning regs\n"));
7054
7055   DFPRINTF((stderr,"pBlock after register optim.\n"));
7056   pBlockStats(stderr,pb);  // debug
7057 #endif
7058
7059   return registers;
7060 }
7061
7062 /*-----------------------------------------------------------------*/
7063 /* pct2 - writes the call tree to a file                           */
7064 /*                                                                 */
7065 /*-----------------------------------------------------------------*/
7066 static void pct2(FILE *of,pBlock *pb,int indent)
7067 {
7068   pCode *pc,*pcn;
7069   int i;
7070   //  set *registersInCallPath = NULL;
7071
7072   if(!of)
7073     return;
7074
7075   if(indent > 10)
7076     return; //recursion ?
7077
7078   pc = setFirstItem(pb->function_entries);
7079
7080   if(!pc)
7081     return;
7082
7083   pb->visited = 0;
7084
7085   for(i=0;i<indent;i++)   // Indentation
7086     fputc(' ',of);
7087
7088   if(pc->type == PC_FUNCTION)
7089     fprintf(of,"%s\n",PCF(pc)->fname);
7090   else
7091     return;  // ???
7092
7093
7094   pc = setFirstItem(pb->function_calls);
7095   for( ; pc; pc = setNextItem(pb->function_calls)) {
7096
7097     if(pc->type == PC_OPCODE && PCI(pc)->op == POC_CALL) {
7098       char *dest = pic16_get_op_from_instruction(PCI(pc));
7099
7100       pcn = findFunction(dest);
7101       if(pcn)
7102         pct2(of,pcn->pb,indent+1);
7103     } else
7104       fprintf(of,"BUG? pCode isn't a POC_CALL %d\n",__LINE__);
7105
7106   }
7107
7108
7109 }
7110
7111
7112 /*-----------------------------------------------------------------*/
7113 /* pic16_printCallTree - writes the call tree to a file                  */
7114 /*                                                                 */
7115 /*-----------------------------------------------------------------*/
7116
7117 void pic16_printCallTree(FILE *of)
7118 {
7119   pBranch *pbr;
7120   pBlock  *pb;
7121   pCode   *pc;
7122
7123   if(!the_pFile)
7124     return;
7125
7126   if(!of)
7127     of = stderr;
7128
7129   fprintf(of, "\npBlock statistics\n");
7130   for(pb = the_pFile->pbHead; pb;  pb = pb->next )
7131     pBlockStats(of,pb);
7132
7133
7134
7135   fprintf(of,"Call Tree\n");
7136   pbr = the_pFile->functions;
7137   while(pbr) {
7138     if(pbr->pc) {
7139       pc = pbr->pc;
7140       if(!ispCodeFunction(pc))
7141         fprintf(of,"bug in call tree");
7142
7143
7144       fprintf(of,"Function: %s\n", PCF(pc)->fname);
7145
7146       while(pc->next && !ispCodeFunction(pc->next)) {
7147         pc = pc->next;
7148         if(pc->type == PC_OPCODE && PCI(pc)->op == POC_CALL)
7149           fprintf(of,"\t%s\n",pic16_get_op_from_instruction(PCI(pc)));
7150       }
7151     }
7152
7153     pbr = pbr->next;
7154   }
7155
7156
7157   fprintf(of,"\n**************\n\na better call tree\n");
7158   for(pb = the_pFile->pbHead; pb; pb = pb->next) {
7159     if(pb->visited)
7160       pct2(of,pb,0);
7161   }
7162
7163   for(pb = the_pFile->pbHead; pb; pb = pb->next) {
7164     fprintf(of,"block dbname: %c\n", getpBlock_dbName(pb));
7165   }
7166 }
7167
7168
7169
7170 /*-----------------------------------------------------------------*/
7171 /*                                                                 */
7172 /*-----------------------------------------------------------------*/
7173
7174 static void InlineFunction(pBlock *pb)
7175 {
7176   pCode *pc;
7177   pCode *pc_call;
7178
7179   if(!pb)
7180     return;
7181
7182   pc = setFirstItem(pb->function_calls);
7183
7184   for( ; pc; pc = setNextItem(pb->function_calls)) {
7185
7186     if(isCALL(pc)) {
7187       pCode *pcn = findFunction(pic16_get_op_from_instruction(PCI(pc)));
7188       pCode *pct;
7189       pCode *pce;
7190
7191       pBranch *pbr;
7192
7193       if(pcn && isPCF(pcn) && (PCF(pcn)->ncalled == 0)) {               /* change 0 to 1 to enable inlining */
7194
7195         //fprintf(stderr,"Cool can inline:\n");
7196         //pcn->print(stderr,pcn);
7197
7198         //fprintf(stderr,"recursive call Inline\n");
7199         InlineFunction(pcn->pb);
7200         //fprintf(stderr,"return from recursive call Inline\n");
7201
7202         /*
7203           At this point, *pc points to a CALL mnemonic, and
7204           *pcn points to the function that is being called.
7205
7206           To in-line this call, we need to remove the CALL
7207           and RETURN(s), and link the function pCode in with
7208           the CALLee pCode.
7209
7210         */
7211
7212
7213         /* Remove the CALL */
7214         pc_call = pc;
7215         pc = pc->prev;
7216
7217         /* remove callee pBlock from the pBlock linked list */
7218         removepBlock(pcn->pb);
7219
7220         pce = pcn;
7221         while(pce) {
7222           pce->pb = pb;
7223           pce = pce->next;
7224         }
7225
7226         /* Remove the Function pCode */
7227         pct = pic16_findNextInstruction(pcn->next);
7228
7229         /* Link the function with the callee */
7230         pc->next = pcn->next;
7231         pcn->next->prev = pc;
7232
7233         /* Convert the function name into a label */
7234
7235         pbr = Safe_calloc(1,sizeof(pBranch));
7236         pbr->pc = pic16_newpCodeLabel(PCF(pcn)->fname, -1);
7237         pbr->next = NULL;
7238         PCI(pct)->label = pic16_pBranchAppend(PCI(pct)->label,pbr);
7239         PCI(pct)->label = pic16_pBranchAppend(PCI(pct)->label,PCI(pc_call)->label);
7240
7241         /* turn all of the return's except the last into goto's */
7242         /* check case for 2 instruction pBlocks */
7243         pce = pic16_findNextInstruction(pcn->next);
7244         while(pce) {
7245           pCode *pce_next = pic16_findNextInstruction(pce->next);
7246
7247           if(pce_next == NULL) {
7248             /* found the last return */
7249             pCode *pc_call_next =  pic16_findNextInstruction(pc_call->next);
7250
7251             //fprintf(stderr,"found last return\n");
7252             //pce->print(stderr,pce);
7253             pce->prev->next = pc_call->next;
7254             pc_call->next->prev = pce->prev;
7255             PCI(pc_call_next)->label = pic16_pBranchAppend(PCI(pc_call_next)->label,
7256                                                       PCI(pce)->label);
7257           }
7258
7259           pce = pce_next;
7260         }
7261
7262
7263       }
7264     } else
7265       fprintf(stderr,"BUG? pCode isn't a POC_CALL %d\n",__LINE__);
7266
7267   }
7268
7269 }
7270
7271 /*-----------------------------------------------------------------*/
7272 /*                                                                 */
7273 /*-----------------------------------------------------------------*/
7274
7275 void pic16_InlinepCode(void)
7276 {
7277
7278   pBlock  *pb;
7279   pCode   *pc;
7280
7281   if(!the_pFile)
7282     return;
7283
7284   if(!functionInlining)
7285     return;
7286
7287   /* Loop through all of the function definitions and count the
7288    * number of times each one is called */
7289   //fprintf(stderr,"inlining %d\n",__LINE__);
7290
7291   for(pb = the_pFile->pbHead; pb; pb = pb->next) {
7292
7293     pc = setFirstItem(pb->function_calls);
7294
7295     for( ; pc; pc = setNextItem(pb->function_calls)) {
7296
7297       if(isCALL(pc)) {
7298         pCode *pcn = findFunction(pic16_get_op_from_instruction(PCI(pc)));
7299         if(pcn && isPCF(pcn)) {
7300           PCF(pcn)->ncalled++;
7301         }
7302       } else
7303         fprintf(stderr,"BUG? pCode isn't a POC_CALL %d\n",__LINE__);
7304
7305     }
7306   }
7307
7308   //fprintf(stderr,"inlining %d\n",__LINE__);
7309
7310   /* Now, Loop through the function definitions again, but this
7311    * time inline those functions that have only been called once. */
7312
7313   InlineFunction(the_pFile->pbHead);
7314   //fprintf(stderr,"inlining %d\n",__LINE__);
7315
7316   for(pb = the_pFile->pbHead; pb; pb = pb->next)
7317     unBuildFlow(pb);
7318
7319 }
7320
7321 char *pic_optype_names[]={
7322         "PO_NONE",         // No operand e.g. NOP
7323         "PO_W",              // The working register (as a destination)
7324         "PO_WREG",           // The working register (as a file register)
7325         "PO_STATUS",         // The 'STATUS' register
7326         "PO_BSR",            // The 'BSR' register
7327         "PO_FSR0",           // The "file select register" (in PIC18 family it's one
7328                              // of three)
7329         "PO_INDF0",          // The Indirect register
7330         "PO_INTCON",         // Interrupt Control register
7331         "PO_GPR_REGISTER",   // A general purpose register
7332         "PO_GPR_BIT",        // A bit of a general purpose register
7333         "PO_GPR_TEMP",       // A general purpose temporary register
7334         "PO_SFR_REGISTER",   // A special function register (e.g. PORTA)
7335         "PO_PCL",            // Program counter Low register
7336         "PO_PCLATH",         // Program counter Latch high register
7337         "PO_PCLATU",         // Program counter Latch upper register
7338         "PO_PRODL",          // Product Register Low
7339         "PO_PRODH",          // Product Register High
7340         "PO_LITERAL",        // A constant
7341         "PO_REL_ADDR",       // A relative address
7342         "PO_IMMEDIATE",      //  (8051 legacy)
7343         "PO_DIR",            // Direct memory (8051 legacy)
7344         "PO_CRY",            // bit memory (8051 legacy)
7345         "PO_BIT",            // bit operand.
7346         "PO_STR",            //  (8051 legacy)
7347         "PO_LABEL",
7348         "PO_WILD"            // Wild card operand in peep optimizer
7349 };
7350
7351
7352 char *dumpPicOptype(PIC_OPTYPE type)
7353 {
7354         return (pic_optype_names[ type ]);
7355 }