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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
3450   if(mod) {
3451     pcf->modname = Safe_calloc(1,strlen(mod)+1);
3452     strcpy(pcf->modname,mod);
3453   } else
3454     pcf->modname = NULL;
3455
3456   if(f) {
3457     pcf->fname = Safe_calloc(1,strlen(f)+1);
3458     strcpy(pcf->fname,f);
3459   } else
3460     pcf->fname = NULL;
3461
3462   return ( (pCode *)pcf);
3463
3464 }
3465
3466 /*-----------------------------------------------------------------*/
3467 /* pic16_newpCodeFlow                                                    */
3468 /*-----------------------------------------------------------------*/
3469 static void destructpCodeFlow(pCode *pc)
3470 {
3471   if(!pc || !isPCFL(pc))
3472     return;
3473
3474 /*
3475   if(PCFL(pc)->from)
3476   if(PCFL(pc)->to)
3477 */
3478   pic16_unlinkpCode(pc);
3479
3480   deleteSet(&PCFL(pc)->registers);
3481   deleteSet(&PCFL(pc)->from);
3482   deleteSet(&PCFL(pc)->to);
3483   free(pc);
3484
3485 }
3486
3487 pCode *pic16_newpCodeFlow(void )
3488 {
3489   pCodeFlow *pcflow;
3490
3491   //_ALLOC(pcflow,sizeof(pCodeFlow));
3492   pcflow = Safe_calloc(1,sizeof(pCodeFlow));
3493
3494   pcflow->pc.type = PC_FLOW;
3495   pcflow->pc.prev = pcflow->pc.next = NULL;
3496   pcflow->pc.pb = NULL;
3497
3498   //  pcflow->pc.analyze = genericAnalyze;
3499   pcflow->pc.destruct = destructpCodeFlow;
3500   pcflow->pc.print = genericPrint;
3501
3502   pcflow->pc.seq = GpcFlowSeq++;
3503
3504   pcflow->from = pcflow->to = NULL;
3505
3506   pcflow->inCond = PCC_NONE;
3507   pcflow->outCond = PCC_NONE;
3508
3509   pcflow->firstBank = -1;
3510   pcflow->lastBank = -1;
3511
3512   pcflow->FromConflicts = 0;
3513   pcflow->ToConflicts = 0;
3514
3515   pcflow->end = NULL;
3516
3517   pcflow->registers = newSet();
3518
3519   return ( (pCode *)pcflow);
3520
3521 }
3522
3523 /*-----------------------------------------------------------------*/
3524 /*-----------------------------------------------------------------*/
3525 pCodeFlowLink *pic16_newpCodeFlowLink(pCodeFlow *pcflow)
3526 {
3527   pCodeFlowLink *pcflowLink;
3528
3529   pcflowLink = Safe_calloc(1,sizeof(pCodeFlowLink));
3530
3531   pcflowLink->pcflow = pcflow;
3532   pcflowLink->bank_conflict = 0;
3533
3534   return pcflowLink;
3535 }
3536
3537 /*-----------------------------------------------------------------*/
3538 /* pic16_newpCodeCSource - create a new pCode Source Symbol        */
3539 /*-----------------------------------------------------------------*/
3540
3541 pCode *pic16_newpCodeCSource(int ln, char *f, char *l)
3542 {
3543
3544   pCodeCSource *pccs;
3545
3546   pccs = Safe_calloc(1,sizeof(pCodeCSource));
3547
3548   pccs->pc.type = PC_CSOURCE;
3549   pccs->pc.prev = pccs->pc.next = NULL;
3550   pccs->pc.pb = NULL;
3551
3552   pccs->pc.destruct = genericDestruct;
3553   pccs->pc.print = genericPrint;
3554
3555   pccs->line_number = ln;
3556   if(l)
3557     pccs->line = Safe_strdup(l);
3558   else
3559     pccs->line = NULL;
3560
3561   if(f)
3562     pccs->file_name = Safe_strdup(f);
3563   else
3564     pccs->file_name = NULL;
3565
3566   return ( (pCode *)pccs);
3567
3568 }
3569
3570
3571 /*******************************************************************/
3572 /* pic16_newpCodeAsmDir - create a new pCode Assembler Directive   */
3573 /*                      added by VR 6-Jun-2003                     */
3574 /*******************************************************************/
3575
3576 pCode *pic16_newpCodeAsmDir(char *asdir, char *argfmt, ...)
3577 {
3578   pCodeAsmDir *pcad;
3579   va_list ap;
3580   char buffer[512];
3581   char *lbp=buffer;
3582
3583         pcad = Safe_calloc(1, sizeof(pCodeAsmDir));
3584         pcad->pci.pc.type = PC_ASMDIR;
3585         pcad->pci.pc.prev = pcad->pci.pc.next = NULL;
3586         pcad->pci.pc.pb = NULL;
3587
3588         pcad->pci.pc.destruct = genericDestruct;
3589         pcad->pci.pc.print = genericPrint;
3590
3591         if(asdir && *asdir) {
3592
3593                 while(isspace(*asdir))asdir++;  // strip any white space from the beginning
3594
3595                 pcad->directive = Safe_strdup( asdir );
3596         }
3597
3598         va_start(ap, argfmt);
3599
3600         memset(buffer, 0, sizeof(buffer));
3601         if(argfmt && *argfmt)
3602                 vsprintf(buffer, argfmt, ap);
3603
3604         va_end(ap);
3605
3606         while(isspace(*lbp))lbp++;
3607
3608         if(lbp && *lbp)
3609                 pcad->arg = Safe_strdup( lbp );
3610
3611   return ((pCode *)pcad);
3612 }
3613
3614 /*-----------------------------------------------------------------*/
3615 /* pCodeLabelDestruct - free memory used by a label.               */
3616 /*-----------------------------------------------------------------*/
3617 static void pCodeLabelDestruct(pCode *pc)
3618 {
3619
3620   if(!pc)
3621     return;
3622
3623   if((pc->type == PC_LABEL) && PCL(pc)->label)
3624     free(PCL(pc)->label);
3625
3626   free(pc);
3627
3628 }
3629
3630 pCode *pic16_newpCodeLabel(char *name, int key)
3631 {
3632
3633   char *s = buffer;
3634   pCodeLabel *pcl;
3635
3636   pcl = Safe_calloc(1,sizeof(pCodeLabel) );
3637
3638   pcl->pc.type = PC_LABEL;
3639   pcl->pc.prev = pcl->pc.next = NULL;
3640   //pcl->pc.from = pcl->pc.to = pcl->pc.label = NULL;
3641   pcl->pc.pb = NULL;
3642
3643   //  pcl->pc.analyze = genericAnalyze;
3644   pcl->pc.destruct = pCodeLabelDestruct;
3645   pcl->pc.print = pCodePrintLabel;
3646
3647   pcl->key = key;
3648
3649   pcl->label = NULL;
3650   if(key>0) {
3651     sprintf(s,"_%05d_DS_",key);
3652   } else
3653     s = name;
3654
3655   if(s)
3656     pcl->label = Safe_strdup(s);
3657
3658   return ( (pCode *)pcl);
3659
3660 }
3661
3662
3663 /*-----------------------------------------------------------------*/
3664 /* newpBlock - create and return a pointer to a new pBlock         */
3665 /*-----------------------------------------------------------------*/
3666 static pBlock *newpBlock(void)
3667 {
3668
3669   pBlock *PpB;
3670
3671   PpB = Safe_calloc(1,sizeof(pBlock) );
3672   PpB->next = PpB->prev = NULL;
3673
3674   PpB->function_entries = PpB->function_exits = PpB->function_calls = NULL;
3675   PpB->tregisters = NULL;
3676   PpB->visited = 0;
3677   PpB->FlowTree = NULL;
3678
3679   return PpB;
3680
3681 }
3682
3683 /*-----------------------------------------------------------------*/
3684 /* pic16_newpCodeChain - create a new chain of pCodes                    */
3685 /*-----------------------------------------------------------------*
3686  *
3687  *  This function will create a new pBlock and the pointer to the
3688  *  pCode that is passed in will be the first pCode in the block.
3689  *-----------------------------------------------------------------*/
3690
3691
3692 pBlock *pic16_newpCodeChain(memmap *cm,char c, pCode *pc)
3693 {
3694
3695   pBlock *pB  = newpBlock();
3696
3697   pB->pcHead  = pB->pcTail = pc;
3698   pB->cmemmap = cm;
3699   pB->dbName  = c;
3700
3701   return pB;
3702 }
3703
3704 /*-----------------------------------------------------------------*/
3705 /* pic16_newpCodeOpLabel - Create a new label given the key              */
3706 /*  Note, a negative key means that the label is part of wild card */
3707 /*  (and hence a wild card label) used in the pCodePeep            */
3708 /*   optimizations).                                               */
3709 /*-----------------------------------------------------------------*/
3710
3711 pCodeOp *pic16_newpCodeOpLabel(char *name, int key)
3712 {
3713   char *s=NULL;
3714   static int label_key=-1;
3715
3716   pCodeOp *pcop;
3717
3718   pcop = Safe_calloc(1,sizeof(pCodeOpLabel) );
3719   pcop->type = PO_LABEL;
3720
3721   pcop->name = NULL;
3722
3723   if(key>0)
3724     sprintf(s=buffer,"_%05d_DS_",key);
3725   else
3726     s = name, key = label_key--;
3727
3728   if(s)
3729     pcop->name = Safe_strdup(s);
3730
3731   ((pCodeOpLabel *)pcop)->key = key;
3732
3733   //fprintf(stderr,"pic16_newpCodeOpLabel: key=%d, name=%s\n",key,((s)?s:""));
3734   return pcop;
3735 }
3736
3737 /*-----------------------------------------------------------------*/
3738 /*-----------------------------------------------------------------*/
3739 pCodeOp *pic16_newpCodeOpLit(int lit)
3740 {
3741   char *s = buffer;
3742   pCodeOp *pcop;
3743
3744
3745   pcop = Safe_calloc(1,sizeof(pCodeOpLit) );
3746   pcop->type = PO_LITERAL;
3747
3748   pcop->name = NULL;
3749   if(lit>=0) {
3750     sprintf(s,"0x%02x",lit);
3751     if(s)
3752       pcop->name = Safe_strdup(s);
3753   }
3754
3755   ((pCodeOpLit *)pcop)->lit = lit;
3756
3757   return pcop;
3758 }
3759
3760 /*-----------------------------------------------------------------*/
3761 /*-----------------------------------------------------------------*/
3762 pCodeOp *pic16_newpCodeOpLit2(int lit, pCodeOp *arg2)
3763 {
3764   char *s = buffer, tbuf[256], *tb=tbuf;
3765   pCodeOp *pcop;
3766
3767
3768   tb = pic16_get_op(arg2, NULL, 0);
3769   pcop = Safe_calloc(1,sizeof(pCodeOpLit2) );
3770   pcop->type = PO_LITERAL;
3771
3772   pcop->name = NULL;
3773   if(lit>=0) {
3774     sprintf(s,"0x%02x, %s",lit, tb);
3775     if(s)
3776       pcop->name = Safe_strdup(s);
3777   }
3778
3779   ((pCodeOpLit2 *)pcop)->lit = lit;
3780   ((pCodeOpLit2 *)pcop)->arg2 = arg2;
3781
3782   return pcop;
3783 }
3784
3785 /*-----------------------------------------------------------------*/
3786 /*-----------------------------------------------------------------*/
3787 pCodeOp *pic16_newpCodeOpImmd(char *name, int offset, int index, int code_space)
3788 {
3789   pCodeOp *pcop;
3790
3791         pcop = Safe_calloc(1,sizeof(pCodeOpImmd) );
3792         pcop->type = PO_IMMEDIATE;
3793         if(name) {
3794                 regs *r = pic16_dirregWithName(name);
3795                 pcop->name = Safe_strdup(name);
3796                 PCOI(pcop)->r = r;
3797
3798                 if(r) {
3799 //                      fprintf(stderr, "%s:%d %s reg %s exists\n",__FILE__, __LINE__, __FUNCTION__, name);
3800                         PCOI(pcop)->rIdx = r->rIdx;
3801                 } else {
3802 //                      fprintf(stderr, "%s:%d %s reg %s doesn't exist\n",
3803 //                              __FILE__, __LINE__, __FUNCTION__, name);
3804                         PCOI(pcop)->rIdx = -1;
3805                 }
3806 //                      fprintf(stderr,"%s %s %d\n",__FUNCTION__,name,offset);
3807         } else {
3808                 pcop->name = NULL;
3809         }
3810
3811         PCOI(pcop)->index = index;
3812         PCOI(pcop)->offset = offset;
3813         PCOI(pcop)->_const = code_space;
3814
3815   return pcop;
3816 }
3817
3818 /*-----------------------------------------------------------------*/
3819 /*-----------------------------------------------------------------*/
3820 pCodeOp *pic16_newpCodeOpWild(int id, pCodeWildBlock *pcwb, pCodeOp *subtype)
3821 {
3822   char *s = buffer;
3823   pCodeOp *pcop;
3824
3825
3826   if(!pcwb || !subtype) {
3827     fprintf(stderr, "Wild opcode declaration error: %s-%d\n",__FILE__,__LINE__);
3828     exit(1);
3829   }
3830
3831   pcop = Safe_calloc(1,sizeof(pCodeOpWild));
3832   pcop->type = PO_WILD;
3833   sprintf(s,"%%%d",id);
3834   pcop->name = Safe_strdup(s);
3835
3836   PCOW(pcop)->id = id;
3837   PCOW(pcop)->pcwb = pcwb;
3838   PCOW(pcop)->subtype = subtype;
3839   PCOW(pcop)->matched = NULL;
3840
3841   return pcop;
3842 }
3843
3844 /*-----------------------------------------------------------------*/
3845 /*-----------------------------------------------------------------*/
3846 pCodeOp *pic16_newpCodeOpBit(char *s, int bit, int inBitSpace)
3847 {
3848   pCodeOp *pcop;
3849
3850   pcop = Safe_calloc(1,sizeof(pCodeOpRegBit) );
3851   pcop->type = PO_GPR_BIT;
3852   if(s)
3853     pcop->name = Safe_strdup(s);
3854   else
3855     pcop->name = NULL;
3856
3857   PCORB(pcop)->bit = bit;
3858   PCORB(pcop)->inBitSpace = inBitSpace;
3859
3860   /* pCodeOpBit is derived from pCodeOpReg. We need to init this too */
3861   PCOR(pcop)->r = NULL;
3862   PCOR(pcop)->rIdx = 0;
3863   return pcop;
3864 }
3865
3866 /*-----------------------------------------------------------------*
3867  * pCodeOp *pic16_newpCodeOpReg(int rIdx) - allocate a new register
3868  *
3869  * If rIdx >=0 then a specific register from the set of registers
3870  * will be selected. If rIdx <0, then a new register will be searched
3871  * for.
3872  *-----------------------------------------------------------------*/
3873
3874 pCodeOp *pic16_newpCodeOpReg(int rIdx)
3875 {
3876   pCodeOp *pcop;
3877
3878   pcop = Safe_calloc(1,sizeof(pCodeOpReg) );
3879
3880   pcop->name = NULL;
3881
3882   if(rIdx >= 0) {
3883     PCOR(pcop)->rIdx = rIdx;
3884     PCOR(pcop)->r = pic16_regWithIdx(rIdx);
3885   } else {
3886     PCOR(pcop)->r = pic16_findFreeReg(REG_GPR);
3887
3888     if(PCOR(pcop)->r)
3889       PCOR(pcop)->rIdx = PCOR(pcop)->r->rIdx;
3890     else {
3891         fprintf(stderr, "%s:%d Could not find a free GPR register\n",
3892                 __FUNCTION__, __LINE__);
3893         exit(-1);
3894     }
3895   }
3896
3897   pcop->type = PCOR(pcop)->r->pc_type;
3898
3899   return pcop;
3900 }
3901
3902 pCodeOp *pic16_newpCodeOpRegFromStr(char *name)
3903 {
3904   pCodeOp *pcop;
3905   regs *r;
3906
3907         pcop = Safe_calloc(1,sizeof(pCodeOpReg) );
3908         PCOR(pcop)->r = r = pic16_allocRegByName(name, 1);
3909         PCOR(pcop)->rIdx = PCOR(pcop)->r->rIdx;
3910         pcop->type = PCOR(pcop)->r->pc_type;
3911         pcop->name = PCOR(pcop)->r->name;
3912
3913 //      if(pic16_pcode_verbose) {
3914 //              fprintf(stderr, "%s:%d %s allocates register %s rIdx:0x%02x\n",
3915 //                      __FILE__, __LINE__, __FUNCTION__, r->name, r->rIdx);
3916 //      }
3917
3918   return pcop;
3919 }
3920
3921 /*-----------------------------------------------------------------*/
3922 /*-----------------------------------------------------------------*/
3923
3924 pCodeOp *pic16_newpCodeOp(char *name, PIC_OPTYPE type)
3925 {
3926   pCodeOp *pcop;
3927
3928   switch(type) {
3929   case PO_BIT:
3930   case PO_GPR_BIT:
3931     pcop = pic16_newpCodeOpBit(name, -1,0);
3932     break;
3933
3934   case PO_LITERAL:
3935     pcop = pic16_newpCodeOpLit(-1);
3936     break;
3937
3938   case PO_LABEL:
3939     pcop = pic16_newpCodeOpLabel(NULL,-1);
3940     break;
3941   case PO_GPR_TEMP:
3942     pcop = pic16_newpCodeOpReg(-1);
3943     break;
3944
3945   case PO_GPR_REGISTER:
3946     if(name)
3947       pcop = pic16_newpCodeOpRegFromStr(name);
3948     else
3949       pcop = pic16_newpCodeOpReg(-1);
3950     break;
3951
3952   default:
3953     pcop = Safe_calloc(1,sizeof(pCodeOp) );
3954     pcop->type = type;
3955     if(name)
3956       pcop->name = Safe_strdup(name);
3957     else
3958       pcop->name = NULL;
3959   }
3960
3961   return pcop;
3962 }
3963
3964
3965 typedef struct DBdata
3966   {
3967     int count;
3968     char buffer[256];
3969   } DBdata;
3970
3971 struct DBdata DBd;
3972 static int DBd_init = -1;
3973
3974 /*-----------------------------------------------------------------*/
3975 /*    Add "DB" directives to a pBlock                              */
3976 /*-----------------------------------------------------------------*/
3977 void pic16_emitDB(pBlock *pb, char c)
3978 {
3979   int l;
3980   if (DBd_init<0) // we need to initialize
3981     {
3982       DBd_init = 0;
3983       DBd.count = 0;
3984       DBd.buffer[0] = '\0';
3985     }
3986
3987   l = strlen(DBd.buffer);
3988
3989   if (DBd.count>0)
3990     {
3991       sprintf(DBd.buffer+l,", 0x%02x", c & 0xff);
3992     }
3993   else
3994     {
3995       sprintf(DBd.buffer,"0x%02x", c & 0xff);
3996     }
3997
3998   DBd.count++;
3999
4000   if (DBd.count>=16)
4001     {
4002        pic16_addpCode2pBlock(pb,pic16_newpCodeAsmDir("DB", "%s", DBd.buffer));
4003        DBd.count = 0;
4004        DBd.buffer[0] = '\0';
4005     }
4006
4007 }
4008
4009 /*-----------------------------------------------------------------*/
4010 /*    Flush pending "DB" data to a pBlock                          */
4011 /*-----------------------------------------------------------------*/
4012 void pic16_flushDB(pBlock *pb)
4013 {
4014   if (DBd.count>0)
4015     {
4016        pic16_addpCode2pBlock(pb,pic16_newpCodeAsmDir("DB", "%s", DBd.buffer));
4017        DBd.count = 0;
4018        DBd.buffer[0] = '\0';
4019     }
4020 }
4021
4022 /*-----------------------------------------------------------------*/
4023 /*-----------------------------------------------------------------*/
4024 void pic16_pCodeConstString(char *name, char *value)
4025 {
4026   pBlock *pb;
4027
4028   //  fprintf(stderr, " %s  %s  %s\n",__FUNCTION__,name,value);
4029
4030   if(!name || !value)
4031     return;
4032
4033   pb = pic16_newpCodeChain(NULL, 'P',pic16_newpCodeCharP("; Starting pCode block"));
4034
4035   pic16_addpBlock(pb);
4036
4037   sprintf(buffer,"; %s = %s",name,value);
4038
4039   pic16_addpCode2pBlock(pb,pic16_newpCodeCharP(buffer));
4040   pic16_addpCode2pBlock(pb,pic16_newpCodeLabel(name,-1));
4041
4042   do {
4043         pic16_emitDB(pb, *value);
4044   }while (*value++);
4045   pic16_flushDB(pb);
4046 }
4047
4048 /*-----------------------------------------------------------------*/
4049 /*-----------------------------------------------------------------*/
4050 #if 0
4051 static void pCodeReadCodeTable(void)
4052 {
4053   pBlock *pb;
4054
4055   fprintf(stderr, " %s\n",__FUNCTION__);
4056
4057   pb = pic16_newpCodeChain(NULL, 'P',pic16_newpCodeCharP("; Starting pCode block"));
4058
4059   pic16_addpBlock(pb);
4060
4061   pic16_addpCode2pBlock(pb,pic16_newpCodeCharP("; ReadCodeTable - built in function"));
4062   pic16_addpCode2pBlock(pb,pic16_newpCodeCharP("; Inputs: temp1,temp2 = code pointer"));
4063   pic16_addpCode2pBlock(pb,pic16_newpCodeCharP("; Outpus: W (from RETLW at temp2:temp1)"));
4064   pic16_addpCode2pBlock(pb,pic16_newpCodeLabel("ReadCodeTable:",-1));
4065
4066   pic16_addpCode2pBlock(pb,pic16_newpCode(POC_MOVFW,pic16_newpCodeOpRegFromStr("temp2")));
4067   pic16_addpCode2pBlock(pb,pic16_newpCode(POC_MOVWF,pic16_newpCodeOpRegFromStr("PCLATH")));
4068   pic16_addpCode2pBlock(pb,pic16_newpCode(POC_MOVFW,pic16_newpCodeOpRegFromStr("temp1")));
4069   pic16_addpCode2pBlock(pb,pic16_newpCode(POC_MOVWF,pic16_newpCodeOpRegFromStr("PCL")));
4070
4071
4072 }
4073 #endif
4074 /*-----------------------------------------------------------------*/
4075 /* pic16_addpCode2pBlock - place the pCode into the pBlock linked list   */
4076 /*-----------------------------------------------------------------*/
4077 void pic16_addpCode2pBlock(pBlock *pb, pCode *pc)
4078 {
4079
4080   if(!pc)
4081     return;
4082
4083   if(!pb->pcHead) {
4084     /* If this is the first pcode to be added to a block that
4085      * was initialized with a NULL pcode, then go ahead and
4086      * make this pcode the head and tail */
4087     pb->pcHead  = pb->pcTail = pc;
4088   } else {
4089     //    if(pb->pcTail)
4090     pb->pcTail->next = pc;
4091
4092     pc->prev = pb->pcTail;
4093     pc->pb = pb;
4094
4095     pb->pcTail = pc;
4096   }
4097 }
4098
4099 /*-----------------------------------------------------------------*/
4100 /* pic16_addpBlock - place a pBlock into the pFile                 */
4101 /*-----------------------------------------------------------------*/
4102 void pic16_addpBlock(pBlock *pb)
4103 {
4104   // fprintf(stderr," Adding pBlock: dbName =%c\n",getpBlock_dbName(pb));
4105
4106   if(!the_pFile) {
4107     /* First time called, we'll pass through here. */
4108     //_ALLOC(the_pFile,sizeof(pFile));
4109     the_pFile = Safe_calloc(1,sizeof(pFile));
4110     the_pFile->pbHead = the_pFile->pbTail = pb;
4111     the_pFile->functions = NULL;
4112     return;
4113   }
4114
4115   the_pFile->pbTail->next = pb;
4116   pb->prev = the_pFile->pbTail;
4117   pb->next = NULL;
4118   the_pFile->pbTail = pb;
4119 }
4120
4121 /*-----------------------------------------------------------------*/
4122 /* removepBlock - remove a pBlock from the pFile                   */
4123 /*-----------------------------------------------------------------*/
4124 static void removepBlock(pBlock *pb)
4125 {
4126   pBlock *pbs;
4127
4128   if(!the_pFile)
4129     return;
4130
4131
4132   //fprintf(stderr," Removing pBlock: dbName =%c\n",getpBlock_dbName(pb));
4133
4134   for(pbs = the_pFile->pbHead; pbs; pbs = pbs->next) {
4135     if(pbs == pb) {
4136
4137       if(pbs == the_pFile->pbHead)
4138         the_pFile->pbHead = pbs->next;
4139
4140       if (pbs == the_pFile->pbTail)
4141         the_pFile->pbTail = pbs->prev;
4142
4143       if(pbs->next)
4144         pbs->next->prev = pbs->prev;
4145
4146       if(pbs->prev)
4147         pbs->prev->next = pbs->next;
4148
4149       return;
4150
4151     }
4152   }
4153
4154   fprintf(stderr, "Warning: call to %s:%s didn't find pBlock\n",__FILE__,__FUNCTION__);
4155
4156 }
4157
4158 /*-----------------------------------------------------------------*/
4159 /* printpCode - write the contents of a pCode to a file            */
4160 /*-----------------------------------------------------------------*/
4161 static void printpCode(FILE *of, pCode *pc)
4162 {
4163
4164   if(!pc || !of)
4165     return;
4166
4167   if(pc->print) {
4168     pc->print(of,pc);
4169     return;
4170   }
4171
4172   fprintf(of,"warning - unable to print pCode\n");
4173 }
4174
4175 /*-----------------------------------------------------------------*/
4176 /* pic16_printpBlock - write the contents of a pBlock to a file    */
4177 /*-----------------------------------------------------------------*/
4178 void pic16_printpBlock(FILE *of, pBlock *pb)
4179 {
4180   pCode *pc;
4181
4182         if(!pb)return;
4183
4184         if(!of)of=stderr;
4185
4186         for(pc = pb->pcHead; pc; pc = pc->next) {
4187                 if(isPCF(pc) && PCF(pc)->fname) {
4188                         fprintf(of, "S_%s_%s\tcode", PCF(pc)->modname, PCF(pc)->fname);
4189                         if(pb->dbName == 'A') {
4190                           absSym *ab;
4191                                 for(ab=setFirstItem(absSymSet); ab; ab=setNextItem(absSymSet)) {
4192                                         if(!strcmp(ab->name, PCF(pc)->fname)) {
4193                                                 fprintf(of, "\t0X%06X\n", ab->address);
4194                                                 break;
4195                                         }
4196                                 }
4197                         }
4198                         fprintf(of, "\n");
4199                 }
4200                 printpCode(of,pc);
4201         }
4202 }
4203
4204 /*-----------------------------------------------------------------*/
4205 /*                                                                 */
4206 /*       pCode processing                                          */
4207 /*                                                                 */
4208 /*                                                                 */
4209 /*                                                                 */
4210 /*-----------------------------------------------------------------*/
4211
4212 void pic16_unlinkpCode(pCode *pc)
4213 {
4214
4215
4216   if(pc) {
4217 #ifdef PCODE_DEBUG
4218     fprintf(stderr,"Unlinking: ");
4219     printpCode(stderr, pc);
4220 #endif
4221     if(pc->prev)
4222       pc->prev->next = pc->next;
4223     if(pc->next)
4224       pc->next->prev = pc->prev;
4225
4226     pc->prev = pc->next = NULL;
4227   }
4228 }
4229
4230 /*-----------------------------------------------------------------*/
4231 /*-----------------------------------------------------------------*/
4232
4233 static void genericDestruct(pCode *pc)
4234 {
4235
4236   pic16_unlinkpCode(pc);
4237
4238   if(isPCI(pc)) {
4239     /* For instructions, tell the register (if there's one used)
4240      * that it's no longer needed */
4241     regs *reg = pic16_getRegFromInstruction(pc);
4242     if(reg)
4243       deleteSetItem (&(reg->reglives.usedpCodes),pc);
4244
4245         if(PCI(pc)->is2MemOp) {
4246                 reg = pic16_getRegFromInstruction2(pc);
4247                 if(reg)
4248                         deleteSetItem(&(reg->reglives.usedpCodes), pc);
4249         }
4250   }
4251
4252   /* Instead of deleting the memory used by this pCode, mark
4253    * the object as bad so that if there's a pointer to this pCode
4254    * dangling around somewhere then (hopefully) when the type is
4255    * checked we'll catch it.
4256    */
4257
4258   pc->type = PC_BAD;
4259
4260   pic16_addpCode2pBlock(pb_dead_pcodes, pc);
4261
4262   //free(pc);
4263
4264 }
4265
4266
4267
4268 /*-----------------------------------------------------------------*/
4269 /*-----------------------------------------------------------------*/
4270 /* modifiers for constant immediate */
4271 const char *immdmod[3]={"LOW", "HIGH", "UPPER"};
4272
4273 char *pic16_get_op(pCodeOp *pcop,char *buffer, size_t size)
4274 {
4275   regs *r;
4276   static char b[50];
4277   char *s;
4278   int use_buffer = 1;    // copy the string to the passed buffer pointer
4279
4280         if(!buffer) {
4281                 buffer = b;
4282                 size = sizeof(b);
4283                 use_buffer = 0;     // Don't bother copying the string to the buffer.
4284         }
4285
4286         if(pcop) {
4287                 switch(pcop->type) {
4288                         case PO_PRODL:
4289                         case PO_PRODH:
4290                         case PO_INDF0:
4291                         case PO_FSR0:
4292                                 if(use_buffer) {
4293                                         SAFE_snprintf(&buffer,&size,"%s",PCOR(pcop)->r->name);
4294                                         return buffer;
4295                                 }
4296                                 return PCOR(pcop)->r->name;
4297                                 break;
4298                         case PO_GPR_TEMP:
4299                                 r = pic16_regWithIdx(PCOR(pcop)->r->rIdx);
4300                                 if(use_buffer) {
4301                                         SAFE_snprintf(&buffer,&size,"%s",r->name);
4302                                         return buffer;
4303                                 }
4304                                 return r->name;
4305
4306                         case PO_IMMEDIATE:
4307                                 s = buffer;
4308                                 if(PCOI(pcop)->offset && PCOI(pcop)->offset<4) {
4309                                         if(PCOI(pcop)->index) {
4310                                                 SAFE_snprintf(&s,&size, "%s(%s + %d)",
4311                                                         immdmod[ PCOI(pcop)->offset ],
4312                                                         pcop->name,
4313                                                         PCOI(pcop)->index);
4314                                         } else {
4315                                                 SAFE_snprintf(&s,&size,"%s(%s)",
4316                                                         immdmod[ PCOI(pcop)->offset ],
4317                                                         pcop->name);
4318                                         }
4319                                 } else {
4320                                         if(PCOI(pcop)->index) {
4321                                                 SAFE_snprintf(&s,&size, "%s(%s + %d)",
4322                                                         immdmod[ 0 ],
4323                                                         pcop->name,
4324                                                         PCOI(pcop)->index);
4325                                         } else {
4326                                                 SAFE_snprintf(&s,&size, "%s(%s)",
4327                                                         immdmod[ 0 ],
4328                                                         pcop->name);
4329                                         }
4330                                 }
4331                                 return buffer;
4332
4333                         case PO_DIR:
4334                                 s = buffer;
4335 //                              size = sizeof(buffer);
4336                                 if( PCOR(pcop)->instance) {
4337                                         SAFE_snprintf(&s,&size,"(%s + %d)",
4338                                                 pcop->name,
4339                                                 PCOR(pcop)->instance );
4340                                 } else {
4341                                         SAFE_snprintf(&s,&size,"%s",pcop->name);
4342                                 }
4343                                 return buffer;
4344
4345                         default:
4346                                 if(pcop->name) {
4347                                         if(use_buffer) {
4348                                                 SAFE_snprintf(&buffer,&size,"%s",pcop->name);
4349                                                 return buffer;
4350                                         }
4351                                 return pcop->name;
4352                                 }
4353
4354                 }
4355         }
4356
4357   return "NO operand1";
4358 }
4359
4360 /*-----------------------------------------------------------------*/
4361 /* pic16_get_op2 - variant to support two memory operand commands  */
4362 /*-----------------------------------------------------------------*/
4363 char *pic16_get_op2(pCodeOp *pcop,char *buffer, size_t size)
4364 {
4365   regs *r;
4366   static char b[50];
4367   char *s;
4368   int use_buffer = 1;    // copy the string to the passed buffer pointer
4369
4370         if(!buffer) {
4371                 buffer = b;
4372                 size = sizeof(b);
4373                 use_buffer = 0;     // Don't bother copying the string to the buffer.
4374         }
4375
4376 #if 0
4377         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",
4378                 __FUNCTION__, __LINE__, PCOR(PCOR2(pcop)->pcop2)->r->name, PCOR2(pcop)->pcop2->type,
4379                 PO_DIR, PO_GPR_TEMP, PO_IMMEDIATE, PO_INDF0, PO_FSR0);
4380 #endif
4381
4382         if(pcop) {
4383                 switch(PCOR2(pcop)->pcop2->type) {
4384                         case PO_PRODL:
4385                         case PO_PRODH:
4386                         case PO_INDF0:
4387                         case PO_FSR0:
4388                                 if(use_buffer) {
4389                                         SAFE_snprintf(&buffer,&size,"%s",PCOR(PCOR2(pcop)->pcop2)->r->name);
4390                                         return buffer;
4391                                 }
4392                                 return PCOR(PCOR2(pcop)->pcop2)->r->name;
4393                                 break;
4394                         case PO_GPR_TEMP:
4395                                 r = pic16_regWithIdx(PCOR(PCOR2(pcop)->pcop2)->r->rIdx);
4396
4397                                 if(use_buffer) {
4398                                         SAFE_snprintf(&buffer,&size,"%s",r->name);
4399                                         return buffer;
4400                                 }
4401                                 return r->name;
4402
4403                         case PO_IMMEDIATE:
4404                                         assert( 0 );
4405                                 break;
4406 #if 0
4407                                 s = buffer;
4408
4409                                 if(PCOI(pcop)->_const) {
4410                                         if( PCOI(pcop)->offset && PCOI(pcop)->offset<4) {
4411                                                 SAFE_snprintf(&s,&size,"(((%s+%d) >> %d)&0xff)",
4412                                                         pcop->name,
4413                                                         PCOI(pcop)->index,
4414                                                         8 * PCOI(pcop)->offset );
4415                                         } else
4416                                                 SAFE_snprintf(&s,&size,"LOW(%s+%d)",pcop->name,PCOI(pcop)->index);
4417                                 } else {
4418                                         if( PCOI(pcop)->index) {
4419                                                 SAFE_snprintf(&s,&size,"(%s + %d)",
4420                                                         pcop->name,
4421                                                         PCOI(pcop)->index );
4422                                         } else {
4423                                                 if(PCOI(pcop)->offset)
4424                                                         SAFE_snprintf(&s,&size,"(%s >> %d)&0xff",pcop->name, 8*PCOI(pcop)->offset);
4425                                                 else
4426                                                         SAFE_snprintf(&s,&size,"%s",pcop->name);
4427                                         }
4428                                 }
4429                                 return buffer;
4430 #endif
4431                         case PO_DIR:
4432                                 s = buffer;
4433                                 if( PCOR(PCOR2(pcop)->pcop2)->instance) {
4434                                         SAFE_snprintf(&s,&size,"(%s + %d)",
4435                                                 PCOR(PCOR2(pcop)->pcop2)->r->name,
4436                                                 PCOR(PCOR2(pcop)->pcop2)->instance );
4437                                 } else {
4438                                         SAFE_snprintf(&s,&size,"%s",PCOR(PCOR2(pcop)->pcop2)->r->name);
4439                                 }
4440                                 return buffer;
4441
4442                         default:
4443                                 if(PCOR(PCOR2(pcop)->pcop2)->r->name) {
4444                                         if(use_buffer) {
4445                                                 SAFE_snprintf(&buffer,&size,"%s",PCOR(PCOR2(pcop)->pcop2)->r->name);
4446                                                 return buffer;
4447                                         }
4448                                         return PCOR(PCOR2(pcop)->pcop2)->r->name;
4449                                 }
4450                 }
4451         }
4452
4453   return "NO operand2";
4454 }
4455
4456 /*-----------------------------------------------------------------*/
4457 /*-----------------------------------------------------------------*/
4458 static char *pic16_get_op_from_instruction( pCodeInstruction *pcc)
4459 {
4460
4461   if(pcc )
4462     return pic16_get_op(pcc->pcop,NULL,0);
4463
4464   /* gcc 3.2:  warning: concatenation of string literals with __FUNCTION__ is deprecated
4465    *   return ("ERROR Null: "__FUNCTION__);
4466    */
4467   return ("ERROR Null: pic16_get_op_from_instruction");
4468
4469 }
4470
4471 /*-----------------------------------------------------------------*/
4472 /*-----------------------------------------------------------------*/
4473 static void pCodeOpPrint(FILE *of, pCodeOp *pcop)
4474 {
4475
4476   fprintf(of,"pcodeopprint- not implemented\n");
4477 }
4478
4479 /*-----------------------------------------------------------------*/
4480 /* pic16_pCode2str - convert a pCode instruction to string               */
4481 /*-----------------------------------------------------------------*/
4482 static char *pic16_pCode2str(char *str, size_t size, pCode *pc)
4483 {
4484   char *s = str;
4485   regs *r;
4486
4487 #if 0
4488         if(isPCI(pc) && (PCI(pc)->pci_magic != PCI_MAGIC)) {
4489                 fprintf(stderr, "%s:%d: pCodeInstruction initialization error in instruction %s, magic is %x (defaut: %x)\n",
4490                         __FILE__, __LINE__, PCI(pc)->mnemonic, PCI(pc)->pci_magic, PCI_MAGIC);
4491                 exit(-1);
4492         }
4493 #endif
4494
4495   switch(pc->type) {
4496
4497   case PC_OPCODE:
4498     SAFE_snprintf(&s,&size, "\t%s\t", PCI(pc)->mnemonic);
4499
4500     if( (PCI(pc)->num_ops >= 1) && (PCI(pc)->pcop)) {
4501
4502         if(PCI(pc)->is2MemOp) {
4503                 SAFE_snprintf(&s,&size, "%s, %s",
4504                 pic16_get_op(PCOP(PCI(pc)->pcop), NULL, 0),
4505                 pic16_get_op2(PCOP(PCI(pc)->pcop), NULL, 0));
4506                 break;
4507         }
4508
4509         if(PCI(pc)->is2LitOp) {
4510                 SAFE_snprintf(&s,&size, "%s", PCOP(PCI(pc)->pcop)->name);
4511                 break;
4512         }
4513
4514       if(PCI(pc)->isBitInst) {
4515         if(PCI(pc)->pcop->type == PO_GPR_BIT) {
4516           if( (((pCodeOpRegBit *)(PCI(pc)->pcop))->inBitSpace) )
4517             SAFE_snprintf(&s,&size,"(%s >> 3), (%s & 7)",
4518                           PCI(pc)->pcop->name ,
4519                           PCI(pc)->pcop->name );
4520           else
4521             SAFE_snprintf(&s,&size,"%s,%d", pic16_get_op_from_instruction(PCI(pc)),
4522                           (((pCodeOpRegBit *)(PCI(pc)->pcop))->bit ));
4523         } else if(PCI(pc)->pcop->type == PO_GPR_BIT) {
4524           SAFE_snprintf(&s,&size,"%s,%d", pic16_get_op_from_instruction(PCI(pc)),PCORB(PCI(pc)->pcop)->bit);
4525         }else
4526           SAFE_snprintf(&s,&size,"%s,0 ; ?bug", pic16_get_op_from_instruction(PCI(pc)));
4527         //PCI(pc)->pcop->t.bit );
4528       } else {
4529
4530         if(PCI(pc)->pcop->type == PO_GPR_BIT) {
4531           if( PCI(pc)->num_ops == 3)
4532             SAFE_snprintf(&s,&size,"(%s >> 3),%c",pic16_get_op_from_instruction(PCI(pc)),((PCI(pc)->isModReg) ? 'F':'W'));
4533           else
4534             SAFE_snprintf(&s,&size,"(1 << (%s & 7))",pic16_get_op_from_instruction(PCI(pc)));
4535
4536         }else {
4537           SAFE_snprintf(&s,&size,"%s", pic16_get_op_from_instruction(PCI(pc)));
4538
4539                 if( PCI(pc)->num_ops == 3 || ((PCI(pc)->num_ops == 2) && (PCI(pc)->isAccess))) {
4540                         if(PCI(pc)->num_ops == 3)
4541                                 SAFE_snprintf(&s,&size,", %c", ( (PCI(pc)->isModReg) ? 'F':'W'));
4542
4543                         r = pic16_getRegFromInstruction(pc);
4544 //                      fprintf(stderr, "%s:%d reg = %p\tname= %s, accessBank= %d\n",
4545 //                                      __FUNCTION__, __LINE__, r, (r)?r->name:"<null>", (r)?r->accessBank:-1);
4546
4547                         if(r && !r->accessBank)SAFE_snprintf(&s,&size,", %s", "B");
4548           }
4549         }
4550       }
4551
4552     }
4553     break;
4554
4555   case PC_COMMENT:
4556     /* assuming that comment ends with a \n */
4557     SAFE_snprintf(&s,&size,";%s", ((pCodeComment *)pc)->comment);
4558     break;
4559
4560   case PC_INLINE:
4561     /* assuming that inline code ends with a \n */
4562     SAFE_snprintf(&s,&size,"%s", ((pCodeComment *)pc)->comment);
4563     break;
4564
4565   case PC_LABEL:
4566     SAFE_snprintf(&s,&size,";label=%s, key=%d\n",PCL(pc)->label,PCL(pc)->key);
4567     break;
4568   case PC_FUNCTION:
4569     SAFE_snprintf(&s,&size,";modname=%s,function=%s: id=%d\n",PCF(pc)->modname,PCF(pc)->fname);
4570     break;
4571   case PC_WILD:
4572     SAFE_snprintf(&s,&size,";\tWild opcode: id=%d\n",PCW(pc)->id);
4573     break;
4574   case PC_FLOW:
4575     SAFE_snprintf(&s,&size,";\t--FLOW change\n");
4576     break;
4577   case PC_CSOURCE:
4578     SAFE_snprintf(&s,&size,";#CSRC\t%s %d\t%s\n", PCCS(pc)->file_name, PCCS(pc)->line_number, PCCS(pc)->line);
4579     break;
4580   case PC_ASMDIR:
4581         if(PCAD(pc)->directive) {
4582                 SAFE_snprintf(&s,&size,"\t%s%s%s\n", PCAD(pc)->directive, PCAD(pc)->arg?"\t":"", PCAD(pc)->arg?PCAD(pc)->arg:"");
4583         } else
4584         if(PCAD(pc)->arg) {
4585                 /* special case to handle inline labels without a tab */
4586                 SAFE_snprintf(&s,&size,"%s\n", PCAD(pc)->arg);
4587         }
4588         break;
4589
4590   case PC_BAD:
4591     SAFE_snprintf(&s,&size,";A bad pCode is being used\n");
4592   }
4593
4594   return str;
4595
4596 }
4597
4598 /*-----------------------------------------------------------------*/
4599 /* genericPrint - the contents of a pCode to a file                */
4600 /*-----------------------------------------------------------------*/
4601 static void genericPrint(FILE *of, pCode *pc)
4602 {
4603
4604   if(!pc || !of)
4605     return;
4606
4607   switch(pc->type) {
4608   case PC_COMMENT:
4609     fprintf(of,";%s\n", ((pCodeComment *)pc)->comment);
4610     break;
4611
4612   case PC_INLINE:
4613     fprintf(of,"%s\n", ((pCodeComment *)pc)->comment);
4614      break;
4615
4616   case PC_OPCODE:
4617     // If the opcode has a label, print that first
4618     {
4619       pBranch *pbl = PCI(pc)->label;
4620       while(pbl && pbl->pc) {
4621         if(pbl->pc->type == PC_LABEL)
4622           pCodePrintLabel(of, pbl->pc);
4623         pbl = pbl->next;
4624       }
4625     }
4626
4627     if(PCI(pc)->cline)
4628       genericPrint(of,PCODE(PCI(pc)->cline));
4629
4630     {
4631       char str[256];
4632
4633       pic16_pCode2str(str, 256, pc);
4634
4635       fprintf(of,"%s",str);
4636       /* Debug */
4637       if(pic16_debug_verbose) {
4638         fprintf(of, "\t;key=%03x",pc->seq);
4639         if(PCI(pc)->pcflow)
4640           fprintf(of,", flow seq=%03x",PCI(pc)->pcflow->pc.seq);
4641       }
4642     }
4643     fprintf(of, "\n");
4644     break;
4645
4646   case PC_WILD:
4647     fprintf(of,";\tWild opcode: id=%d\n",PCW(pc)->id);
4648     if(PCW(pc)->pci.label)
4649       pCodePrintLabel(of, PCW(pc)->pci.label->pc);
4650
4651     if(PCW(pc)->operand) {
4652       fprintf(of,";\toperand  ");
4653       pCodeOpPrint(of,PCW(pc)->operand );
4654     }
4655     break;
4656
4657   case PC_FLOW:
4658     if(pic16_debug_verbose) {
4659       fprintf(of,";<>Start of new flow, seq=0x%x",pc->seq);
4660       if(PCFL(pc)->ancestor)
4661         fprintf(of," ancestor = 0x%x", PCODE(PCFL(pc)->ancestor)->seq);
4662       fprintf(of,"\n");
4663
4664     }
4665     break;
4666
4667   case PC_CSOURCE:
4668     fprintf(of,";#CSRC\t%s %d\t\t%s\n", PCCS(pc)->file_name, PCCS(pc)->line_number, PCCS(pc)->line);
4669     break;
4670
4671   case PC_ASMDIR:
4672         {
4673           pBranch *pbl = PCAD(pc)->pci.label;
4674                 while(pbl && pbl->pc) {
4675                         if(pbl->pc->type == PC_LABEL)
4676                                 pCodePrintLabel(of, pbl->pc);
4677                         pbl = pbl->next;
4678                 }
4679         }
4680         if(PCAD(pc)->directive) {
4681                 fprintf(of, "\t%s%s%s\n", PCAD(pc)->directive, PCAD(pc)->arg?"\t":"", PCAD(pc)->arg?PCAD(pc)->arg:"");
4682         } else
4683         if(PCAD(pc)->arg) {
4684                 /* special case to handle inline labels without tab */
4685                 fprintf(of, "%s\n", PCAD(pc)->arg);
4686         }
4687         break;
4688
4689   case PC_LABEL:
4690   default:
4691     fprintf(of,"unknown pCode type %d\n",pc->type);
4692   }
4693
4694 }
4695
4696 /*-----------------------------------------------------------------*/
4697 /* pCodePrintFunction - prints function begin/end                  */
4698 /*-----------------------------------------------------------------*/
4699
4700 static void pCodePrintFunction(FILE *of, pCode *pc)
4701 {
4702
4703   if(!pc || !of)
4704     return;
4705
4706 #if 0
4707   if( ((pCodeFunction *)pc)->modname)
4708     fprintf(of,"F_%s",((pCodeFunction *)pc)->modname);
4709 #endif
4710
4711   if(PCF(pc)->fname) {
4712     pBranch *exits = PCF(pc)->to;
4713     int i=0;
4714     fprintf(of,"%s", PCF(pc)->fname);
4715
4716 //      if(pic16_pcode_verbose)
4717                 fprintf(of, "\t;Function start");
4718
4719     fprintf(of, "\n");
4720
4721     while(exits) {
4722       i++;
4723       exits = exits->next;
4724     }
4725     //if(i) i--;
4726
4727         if(pic16_pcode_verbose)
4728                 fprintf(of,"; %d exit point%c\n",i, ((i==1) ? ' ':'s'));
4729
4730   } else {
4731         if((PCF(pc)->from &&
4732                 PCF(pc)->from->pc->type == PC_FUNCTION &&
4733                 PCF(PCF(pc)->from->pc)->fname) ) {
4734
4735                 if(pic16_pcode_verbose)
4736                         fprintf(of,"; exit point of %s\n",PCF(PCF(pc)->from->pc)->fname);
4737         } else {
4738                 if(pic16_pcode_verbose)
4739                         fprintf(of,"; exit point [can't find entry point]\n");
4740         }
4741         fprintf(of, "\n");
4742   }
4743 }
4744 /*-----------------------------------------------------------------*/
4745 /* pCodePrintLabel - prints label                                  */
4746 /*-----------------------------------------------------------------*/
4747
4748 static void pCodePrintLabel(FILE *of, pCode *pc)
4749 {
4750
4751   if(!pc || !of)
4752     return;
4753
4754   if(PCL(pc)->label)
4755     fprintf(of,"%s:\n",PCL(pc)->label);
4756   else if (PCL(pc)->key >=0)
4757     fprintf(of,"_%05d_DS_:\n",PCL(pc)->key);
4758   else
4759     fprintf(of,";wild card label: id=%d\n",-PCL(pc)->key);
4760
4761 }
4762 /*-----------------------------------------------------------------*/
4763 /* unlinkpCodeFromBranch - Search for a label in a pBranch and     */
4764 /*                         remove it if it is found.               */
4765 /*-----------------------------------------------------------------*/
4766 static void unlinkpCodeFromBranch(pCode *pcl , pCode *pc)
4767 {
4768   pBranch *b, *bprev;
4769
4770
4771   bprev = NULL;
4772
4773   if(pcl->type == PC_OPCODE)
4774     b = PCI(pcl)->label;
4775   else {
4776     fprintf(stderr, "LINE %d. can't unlink from non opcode\n",__LINE__);
4777     exit(1);
4778
4779   }
4780
4781   //fprintf (stderr, "%s \n",__FUNCTION__);
4782   //pcl->print(stderr,pcl);
4783   //pc->print(stderr,pc);
4784   while(b) {
4785     if(b->pc == pc) {
4786       //fprintf (stderr, "found label\n");
4787       //pc->print(stderr, pc);
4788
4789       /* Found a label */
4790       if(bprev) {
4791         bprev->next = b->next;  /* Not first pCode in chain */
4792         free(b);
4793       } else {
4794         pc->destruct(pc);
4795         PCI(pcl)->label = b->next;   /* First pCode in chain */
4796         free(b);
4797       }
4798       return;  /* A label can't occur more than once */
4799     }
4800     bprev = b;
4801     b = b->next;
4802   }
4803
4804 }
4805
4806 /*-----------------------------------------------------------------*/
4807 /*-----------------------------------------------------------------*/
4808 pBranch * pic16_pBranchAppend(pBranch *h, pBranch *n)
4809 {
4810   pBranch *b;
4811
4812   if(!h)
4813     return n;
4814
4815   if(h == n)
4816     return n;
4817
4818   b = h;
4819   while(b->next)
4820     b = b->next;
4821
4822   b->next = n;
4823
4824   return h;
4825
4826 }
4827 /*-----------------------------------------------------------------*/
4828 /* pBranchLink - given two pcodes, this function will link them    */
4829 /*               together through their pBranches                  */
4830 /*-----------------------------------------------------------------*/
4831 static void pBranchLink(pCodeFunction *f, pCodeFunction *t)
4832 {
4833   pBranch *b;
4834
4835   // Declare a new branch object for the 'from' pCode.
4836
4837   //_ALLOC(b,sizeof(pBranch));
4838   b = Safe_calloc(1,sizeof(pBranch));
4839   b->pc = PCODE(t);             // The link to the 'to' pCode.
4840   b->next = NULL;
4841
4842   f->to = pic16_pBranchAppend(f->to,b);
4843
4844   // Now do the same for the 'to' pCode.
4845
4846   //_ALLOC(b,sizeof(pBranch));
4847   b = Safe_calloc(1,sizeof(pBranch));
4848   b->pc = PCODE(f);
4849   b->next = NULL;
4850
4851   t->from = pic16_pBranchAppend(t->from,b);
4852
4853 }
4854
4855 #if 0
4856 /*-----------------------------------------------------------------*/
4857 /* pBranchFind - find the pBranch in a pBranch chain that contains */
4858 /*               a pCode                                           */
4859 /*-----------------------------------------------------------------*/
4860 static pBranch *pBranchFind(pBranch *pb,pCode *pc)
4861 {
4862   while(pb) {
4863
4864     if(pb->pc == pc)
4865       return pb;
4866
4867     pb = pb->next;
4868   }
4869
4870   return NULL;
4871 }
4872
4873 /*-----------------------------------------------------------------*/
4874 /* pCodeUnlink - Unlink the given pCode from its pCode chain.      */
4875 /*-----------------------------------------------------------------*/
4876 static void pCodeUnlink(pCode *pc)
4877 {
4878   pBranch *pb1,*pb2;
4879   pCode *pc1;
4880
4881   if(!pc->prev || !pc->next) {
4882     fprintf(stderr,"unlinking bad pCode in %s:%d\n",__FILE__,__LINE__);
4883     exit(1);
4884   }
4885
4886   /* first remove the pCode from the chain */
4887   pc->prev->next = pc->next;
4888   pc->next->prev = pc->prev;
4889
4890   /* Now for the hard part... */
4891
4892   /* Remove the branches */
4893
4894   pb1 = pc->from;
4895   while(pb1) {
4896     pc1 = pb1->pc;    /* Get the pCode that branches to the
4897                        * one we're unlinking */
4898
4899     /* search for the link back to this pCode (the one we're
4900      * unlinking) */
4901     if(pb2 = pBranchFind(pc1->to,pc)) {
4902       pb2->pc = pc->to->pc;  // make the replacement
4903
4904       /* if the pCode we're unlinking contains multiple 'to'
4905        * branches (e.g. this a skip instruction) then we need
4906        * to copy these extra branches to the chain. */
4907       if(pc->to->next)
4908         pic16_pBranchAppend(pb2, pc->to->next);
4909     }
4910
4911     pb1 = pb1->next;
4912   }
4913
4914
4915 }
4916 #endif
4917 /*-----------------------------------------------------------------*/
4918 /*-----------------------------------------------------------------*/
4919 #if 0
4920 static void genericAnalyze(pCode *pc)
4921 {
4922   switch(pc->type) {
4923   case PC_WILD:
4924   case PC_COMMENT:
4925     return;
4926   case PC_LABEL:
4927   case PC_FUNCTION:
4928   case PC_OPCODE:
4929     {
4930       // Go through the pCodes that are in pCode chain and link
4931       // them together through the pBranches. Note, the pCodes
4932       // are linked together as a contiguous stream like the
4933       // assembly source code lines. The linking here mimics this
4934       // except that comments are not linked in.
4935       //
4936       pCode *npc = pc->next;
4937       while(npc) {
4938         if(npc->type == PC_OPCODE || npc->type == PC_LABEL) {
4939           pBranchLink(pc,npc);
4940           return;
4941         } else
4942           npc = npc->next;
4943       }
4944       /* reached the end of the pcode chain without finding
4945        * an instruction we could link to. */
4946     }
4947     break;
4948   case PC_FLOW:
4949     fprintf(stderr,"analyze PC_FLOW\n");
4950
4951     return;
4952   case PC_BAD:
4953     fprintf(stderr,,";A bad pCode is being used\n");
4954
4955   }
4956 }
4957 #endif
4958
4959 /*-----------------------------------------------------------------*/
4960 /*-----------------------------------------------------------------*/
4961 static int compareLabel(pCode *pc, pCodeOpLabel *pcop_label)
4962 {
4963   pBranch *pbr;
4964
4965   if(pc->type == PC_LABEL) {
4966     if( ((pCodeLabel *)pc)->key ==  pcop_label->key)
4967       return TRUE;
4968   }
4969   if((pc->type == PC_OPCODE)
4970         || (pc->type == PC_ASMDIR)
4971         ) {
4972     pbr = PCI(pc)->label;
4973     while(pbr) {
4974       if(pbr->pc->type == PC_LABEL) {
4975         if( ((pCodeLabel *)(pbr->pc))->key ==  pcop_label->key)
4976           return TRUE;
4977       }
4978       pbr = pbr->next;
4979     }
4980   }
4981
4982   return FALSE;
4983 }
4984
4985 /*-----------------------------------------------------------------*/
4986 /*-----------------------------------------------------------------*/
4987 static int checkLabel(pCode *pc)
4988 {
4989   pBranch *pbr;
4990
4991   if(pc && isPCI(pc)) {
4992     pbr = PCI(pc)->label;
4993     while(pbr) {
4994       if(isPCL(pbr->pc) && (PCL(pbr->pc)->key >= 0))
4995         return TRUE;
4996
4997       pbr = pbr->next;
4998     }
4999   }
5000
5001   return FALSE;
5002 }
5003
5004 /*-----------------------------------------------------------------*/
5005 /* findLabelinpBlock - Search the pCode for a particular label     */
5006 /*-----------------------------------------------------------------*/
5007 static pCode * findLabelinpBlock(pBlock *pb,pCodeOpLabel *pcop_label)
5008 {
5009   pCode  *pc;
5010
5011   if(!pb)
5012     return NULL;
5013
5014   for(pc = pb->pcHead; pc; pc = pc->next)
5015     if(compareLabel(pc,pcop_label))
5016       return pc;
5017
5018   return NULL;
5019 }
5020 #if 0
5021 /*-----------------------------------------------------------------*/
5022 /* findLabel - Search the pCode for a particular label             */
5023 /*-----------------------------------------------------------------*/
5024 static pCode * findLabel(pCodeOpLabel *pcop_label)
5025 {
5026   pBlock *pb;
5027   pCode  *pc;
5028
5029   if(!the_pFile)
5030     return NULL;
5031
5032   for(pb = the_pFile->pbHead; pb; pb = pb->next) {
5033     if( (pc = findLabelinpBlock(pb,pcop_label)) != NULL)
5034       return pc;
5035   }
5036
5037   fprintf(stderr,"Couldn't find label %s", pcop_label->pcop.name);
5038   return NULL;
5039 }
5040 #endif
5041 /*-----------------------------------------------------------------*/
5042 /* pic16_findNextpCode - given a pCode, find the next of type 'pct'      */
5043 /*                 in the linked list                              */
5044 /*-----------------------------------------------------------------*/
5045 pCode * pic16_findNextpCode(pCode *pc, PC_TYPE pct)
5046 {
5047
5048   while(pc) {
5049     if(pc->type == pct)
5050       return pc;
5051
5052     pc = pc->next;
5053   }
5054
5055   return NULL;
5056 }
5057
5058 /*-----------------------------------------------------------------*/
5059 /* findPrevpCode - given a pCode, find the previous of type 'pct'  */
5060 /*                 in the linked list                              */
5061 /*-----------------------------------------------------------------*/
5062 static pCode * findPrevpCode(pCode *pc, PC_TYPE pct)
5063 {
5064
5065   while(pc) {
5066     if(pc->type == pct)
5067       return pc;
5068
5069     pc = pc->prev;
5070   }
5071
5072   return NULL;
5073 }
5074
5075
5076 //#define PCODE_DEBUG
5077 /*-----------------------------------------------------------------*/
5078 /* pic16_findNextInstruction - given a pCode, find the next instruction  */
5079 /*                       in the linked list                        */
5080 /*-----------------------------------------------------------------*/
5081 pCode * pic16_findNextInstruction(pCode *pci)
5082 {
5083   pCode *pc = pci;
5084
5085   while(pc) {
5086     if((pc->type == PC_OPCODE)
5087         || (pc->type == PC_WILD)
5088         || (pc->type == PC_ASMDIR)
5089         )
5090       return pc;
5091
5092 #ifdef PCODE_DEBUG
5093     fprintf(stderr,"pic16_findNextInstruction:  ");
5094     printpCode(stderr, pc);
5095 #endif
5096     pc = pc->next;
5097   }
5098
5099   //fprintf(stderr,"Couldn't find instruction\n");
5100   return NULL;
5101 }
5102
5103 /*-----------------------------------------------------------------*/
5104 /* pic16_findNextInstruction - given a pCode, find the next instruction  */
5105 /*                       in the linked list                        */
5106 /*-----------------------------------------------------------------*/
5107 pCode * pic16_findPrevInstruction(pCode *pci)
5108 {
5109   pCode *pc = pci;
5110
5111   while(pc) {
5112     if((pc->type == PC_OPCODE)
5113         || (pc->type == PC_WILD)
5114         || (pc->type == PC_ASMDIR)
5115         )
5116       return pc;
5117
5118
5119 #ifdef PCODE_DEBUG
5120     fprintf(stderr,"pic16_findPrevInstruction:  ");
5121     printpCode(stderr, pc);
5122 #endif
5123     pc = pc->next;
5124   }
5125
5126   //fprintf(stderr,"Couldn't find instruction\n");
5127   return NULL;
5128 }
5129
5130 #undef PCODE_DEBUG
5131
5132 #if 0
5133 /*-----------------------------------------------------------------*/
5134 /* findFunctionEnd - given a pCode find the end of the function    */
5135 /*                   that contains it                              */
5136 /*-----------------------------------------------------------------*/
5137 static pCode * findFunctionEnd(pCode *pc)
5138 {
5139
5140   while(pc) {
5141     if(pc->type == PC_FUNCTION &&  !(PCF(pc)->fname))
5142       return pc;
5143
5144     pc = pc->next;
5145   }
5146
5147   fprintf(stderr,"Couldn't find function end\n");
5148   return NULL;
5149 }
5150 #endif
5151 #if 0
5152 /*-----------------------------------------------------------------*/
5153 /* AnalyzeLabel - if the pCode is a label, then merge it with the  */
5154 /*                instruction with which it is associated.         */
5155 /*-----------------------------------------------------------------*/
5156 static void AnalyzeLabel(pCode *pc)
5157 {
5158
5159   pCodeUnlink(pc);
5160
5161 }
5162 #endif
5163
5164 #if 0
5165 static void AnalyzeGOTO(pCode *pc)
5166 {
5167
5168   pBranchLink(pc,findLabel( (pCodeOpLabel *) (PCI(pc)->pcop) ));
5169
5170 }
5171
5172 static void AnalyzeSKIP(pCode *pc)
5173 {
5174
5175   pBranchLink(pc,pic16_findNextInstruction(pc->next));
5176   pBranchLink(pc,pic16_findNextInstruction(pc->next->next));
5177
5178 }
5179
5180 static void AnalyzeRETURN(pCode *pc)
5181 {
5182
5183   //  branch_link(pc,findFunctionEnd(pc->next));
5184
5185 }
5186
5187 #endif
5188
5189 /*-----------------------------------------------------------------*/
5190 /*-----------------------------------------------------------------*/
5191 regs * pic16_getRegFromInstruction(pCode *pc)
5192 {
5193
5194   if(!pc                   ||
5195      !isPCI(pc)            ||
5196      !PCI(pc)->pcop        ||
5197      PCI(pc)->num_ops == 0 ||
5198      (PCI(pc)->num_ops == 1 && PCI(pc)->isFastCall))
5199     return NULL;
5200
5201 #if 0
5202   fprintf(stderr, "pic16_getRegFromInstruction - reg type %s (%d)\n",
5203         dumpPicOptype( PCI(pc)->pcop->type), PCI(pc)->pcop->type);
5204 #endif
5205
5206   switch(PCI(pc)->pcop->type) {
5207   case PO_PRODL:
5208   case PO_PRODH:
5209
5210   case PO_INDF0:
5211   case PO_FSR0:
5212     return PCOR(PCI(pc)->pcop)->r;
5213
5214     //    return typeRegWithIdx (PCOR(PCI(pc)->pcop)->rIdx, REG_SFR, 0);
5215
5216   case PO_BIT:
5217   case PO_GPR_TEMP:
5218 //      fprintf(stderr, "pic16_getRegFromInstruction - bit or temp\n");
5219     return PCOR(PCI(pc)->pcop)->r;
5220
5221   case PO_IMMEDIATE:
5222     if(PCOI(PCI(pc)->pcop)->r)
5223       return (PCOI(PCI(pc)->pcop)->r);
5224
5225     //fprintf(stderr, "pic16_getRegFromInstruction - immediate\n");
5226     return pic16_dirregWithName(PCI(pc)->pcop->name);
5227     //return NULL; // PCOR(PCI(pc)->pcop)->r;
5228
5229   case PO_GPR_BIT:
5230     return PCOR(PCI(pc)->pcop)->r;
5231
5232   case PO_DIR:
5233 //      fprintf(stderr, "pic16_getRegFromInstruction - dir\n");
5234     return PCOR(PCI(pc)->pcop)->r;
5235   case PO_LITERAL:
5236     //fprintf(stderr, "pic16_getRegFromInstruction - literal\n");
5237     break;
5238
5239   default:
5240 //      fprintf(stderr, "pic16_getRegFromInstruction - unknown reg type %d\n",PCI(pc)->pcop->type);
5241 //      genericPrint(stderr, pc);
5242 //      assert( 0 );
5243     break;
5244   }
5245
5246   return NULL;
5247 }
5248
5249 /*-------------------------------------------------------------------------------*/
5250 /* pic16_getRegFromInstruction2 - variant to support two memory operand commands */
5251 /*-------------------------------------------------------------------------------*/
5252 regs * pic16_getRegFromInstruction2(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))           // accept only 2 operand commands
5260     return NULL;
5261
5262
5263 #if 0
5264   fprintf(stderr, "pic16_getRegFromInstruction2 - reg type %s (%d)\n",
5265         dumpPicOptype( PCI(pc)->pcop->type), PCI(pc)->pcop->type);
5266 #endif
5267
5268 /*
5269  * operands supported in MOVFF:
5270  *  PO_INF0/PO_FSR0
5271  *  PO_GPR_TEMP
5272  *  PO_IMMEDIATE
5273  *  PO_DIR
5274  *
5275  */
5276   switch(PCI(pc)->pcop->type) {
5277   case PO_PRODL:
5278   case PO_PRODH:
5279
5280   case PO_INDF0:
5281   case PO_FSR0:
5282     return PCOR(PCOR2(PCI(pc)->pcop)->pcop2)->r;
5283
5284     //    return typeRegWithIdx (PCOR(PCI(pc)->pcop)->rIdx, REG_SFR, 0);
5285
5286 //  case PO_BIT:
5287   case PO_GPR_TEMP:
5288     //fprintf(stderr, "pic16_getRegFromInstruction2 - bit or temp\n");
5289     return PCOR(PCOR2(PCI(pc)->pcop)->pcop2)->r;
5290
5291   case PO_IMMEDIATE:
5292 //      break;
5293 #if 1
5294 //    if(PCOI(PCI(pc)->pcop)->r)
5295 //      return (PCOI(PCOR2(PCI(pc)->pcop)->pcop2)->r);
5296
5297     //fprintf(stderr, "pic16_getRegFromInstruction2 - immediate\n");
5298     return pic16_dirregWithName(PCOR(PCOR2(PCI(pc)->pcop)->pcop2)->r->name);
5299     //return NULL; // PCOR(PCI(pc)->pcop)->r;
5300 #endif
5301
5302   case PO_GPR_BIT:
5303         break;
5304 //    return PCOR2(PCI(pc)->pcop)->r;
5305
5306   case PO_DIR:
5307     //fprintf(stderr, "pic16_getRegFromInstruction2 - dir\n");
5308     return PCOR(PCOR2(PCI(pc)->pcop)->pcop2)->r;
5309
5310   case PO_LITERAL:
5311         break;
5312     //fprintf(stderr, "pic16_getRegFromInstruction2 - literal\n");
5313
5314   default:
5315     //fprintf(stderr, "pic16_getRegFromInstruction2 - unknown reg type %d\n",PCI(pc)->pcop->type);
5316     //genericPrint(stderr, pc);
5317     break;
5318   }
5319
5320   return NULL;
5321
5322 }
5323
5324 /*-----------------------------------------------------------------*/
5325 /*-----------------------------------------------------------------*/
5326
5327 static void AnalyzepBlock(pBlock *pb)
5328 {
5329   pCode *pc;
5330
5331   if(!pb)
5332     return;
5333
5334   /* Find all of the registers used in this pBlock
5335    * by looking at each instruction and examining it's
5336    * operands
5337    */
5338   for(pc = pb->pcHead; pc; pc = pc->next) {
5339
5340     /* Is this an instruction with operands? */
5341     if(pc->type == PC_OPCODE && PCI(pc)->pcop) {
5342
5343       if(PCI(pc)->pcop->type == PO_GPR_TEMP) {
5344
5345         /* Loop through all of the registers declared so far in
5346            this block and see if we find this one there */
5347
5348         regs *r = setFirstItem(pb->tregisters);
5349
5350         while(r) {
5351           if(r->rIdx == PCOR(PCI(pc)->pcop)->r->rIdx) {
5352             PCOR(PCI(pc)->pcop)->r = r;
5353             break;
5354           }
5355           r = setNextItem(pb->tregisters);
5356         }
5357
5358         if(!r) {
5359           /* register wasn't found */
5360           //r = Safe_calloc(1, sizeof(regs));
5361           //memcpy(r,PCOR(PCI(pc)->pcop)->r, sizeof(regs));
5362           //addSet(&pb->tregisters, r);
5363           addSet(&pb->tregisters, PCOR(PCI(pc)->pcop)->r);
5364           //PCOR(PCI(pc)->pcop)->r = r;
5365           //fprintf(stderr,"added register to pblock: reg %d\n",r->rIdx);
5366         }/* else
5367           fprintf(stderr,"found register in pblock: reg %d\n",r->rIdx);
5368          */
5369       }
5370       if(PCI(pc)->pcop->type == PO_GPR_REGISTER) {
5371         if(PCOR(PCI(pc)->pcop)->r) {
5372           pic16_allocWithIdx (PCOR(PCI(pc)->pcop)->r->rIdx);
5373           DFPRINTF((stderr,"found register in pblock: reg 0x%x\n",PCOR(PCI(pc)->pcop)->r->rIdx));
5374         } else {
5375           if(PCI(pc)->pcop->name)
5376             fprintf(stderr,"ERROR: %s is a NULL register\n",PCI(pc)->pcop->name );
5377           else
5378             fprintf(stderr,"ERROR: NULL register\n");
5379         }
5380       }
5381     }
5382
5383
5384   }
5385 }
5386
5387 /*-----------------------------------------------------------------*/
5388 /* */
5389 /*-----------------------------------------------------------------*/
5390 #define PCI_HAS_LABEL(x) ((x) && (PCI(x)->label != NULL))
5391
5392 static void InsertpFlow(pCode *pc, pCode **pflow)
5393 {
5394   if(*pflow)
5395     PCFL(*pflow)->end = pc;
5396
5397   if(!pc || !pc->next)
5398     return;
5399
5400   *pflow = pic16_newpCodeFlow();
5401   pic16_pCodeInsertAfter(pc, *pflow);
5402 }
5403
5404 /*-----------------------------------------------------------------*/
5405 /* pic16_BuildFlow(pBlock *pb) - examine the code in a pBlock and build  */
5406 /*                         the flow blocks.                        */
5407 /*
5408  * pic16_BuildFlow inserts pCodeFlow objects into the pCode chain at each
5409  * point the instruction flow changes.
5410  */
5411 /*-----------------------------------------------------------------*/
5412 void pic16_BuildFlow(pBlock *pb)
5413 {
5414   pCode *pc;
5415   pCode *last_pci=NULL;
5416   pCode *pflow=NULL;
5417   int seq = 0;
5418
5419   if(!pb)
5420     return;
5421
5422   //fprintf (stderr,"build flow start seq %d  ",GpcFlowSeq);
5423   /* Insert a pCodeFlow object at the beginning of a pBlock */
5424
5425   InsertpFlow(pb->pcHead, &pflow);
5426
5427   //pflow = pic16_newpCodeFlow();    /* Create a new Flow object */
5428   //pflow->next = pb->pcHead;  /* Make the current head the next object */
5429   //pb->pcHead->prev = pflow;  /* let the current head point back to the flow object */
5430   //pb->pcHead = pflow;        /* Make the Flow object the head */
5431   //pflow->pb = pb;
5432
5433   for( pc = pic16_findNextInstruction(pb->pcHead);
5434        pc != NULL;
5435        pc=pic16_findNextInstruction(pc)) {
5436
5437     pc->seq = seq++;
5438     PCI(pc)->pcflow = PCFL(pflow);
5439
5440     //fprintf(stderr," build: ");
5441     //pflow->print(stderr,pflow);
5442
5443     if( PCI(pc)->isSkip) {
5444
5445       /* The two instructions immediately following this one
5446        * mark the beginning of a new flow segment */
5447
5448       while(pc && PCI(pc)->isSkip) {
5449
5450         PCI(pc)->pcflow = PCFL(pflow);
5451         pc->seq = seq-1;
5452         seq = 1;
5453
5454         InsertpFlow(pc, &pflow);
5455         pc=pic16_findNextInstruction(pc->next);
5456       }
5457
5458       seq = 0;
5459
5460       if(!pc)
5461         break;
5462
5463       PCI(pc)->pcflow = PCFL(pflow);
5464       pc->seq = 0;
5465       InsertpFlow(pc, &pflow);
5466
5467     } else if ( PCI(pc)->isBranch && !checkLabel(pic16_findNextInstruction(pc->next)))  {
5468
5469       InsertpFlow(pc, &pflow);
5470       seq = 0;
5471
5472     } else if (checkLabel(pc)) {
5473
5474       /* This instruction marks the beginning of a
5475        * new flow segment */
5476
5477       pc->seq = 0;
5478       seq = 1;
5479
5480       /* If the previous pCode is not a flow object, then
5481        * insert a new flow object. (This check prevents
5482        * two consecutive flow objects from being insert in
5483        * the case where a skip instruction preceeds an
5484        * instruction containing a label.) */
5485
5486       if(last_pci && (PCI(last_pci)->pcflow == PCFL(pflow)))
5487         InsertpFlow(pic16_findPrevInstruction(pc->prev), &pflow);
5488
5489       PCI(pc)->pcflow = PCFL(pflow);
5490
5491     }
5492     last_pci = pc;
5493     pc = pc->next;
5494   }
5495
5496   //fprintf (stderr,",end seq %d",GpcFlowSeq);
5497   if(pflow)
5498     PCFL(pflow)->end = pb->pcTail;
5499 }
5500
5501 /*-------------------------------------------------------------------*/
5502 /* unBuildFlow(pBlock *pb) - examine the code in a pBlock and build  */
5503 /*                           the flow blocks.                        */
5504 /*
5505  * unBuildFlow removes pCodeFlow objects from a pCode chain
5506  */
5507 /*-----------------------------------------------------------------*/
5508 static void unBuildFlow(pBlock *pb)
5509 {
5510   pCode *pc,*pcnext;
5511
5512   if(!pb)
5513     return;
5514
5515   pc = pb->pcHead;
5516
5517   while(pc) {
5518     pcnext = pc->next;
5519
5520     if(isPCI(pc)) {
5521
5522       pc->seq = 0;
5523       if(PCI(pc)->pcflow) {
5524         //free(PCI(pc)->pcflow);
5525         PCI(pc)->pcflow = NULL;
5526       }
5527
5528     } else if(isPCFL(pc) )
5529       pc->destruct(pc);
5530
5531     pc = pcnext;
5532   }
5533
5534
5535 }
5536 #if 0
5537 /*-----------------------------------------------------------------*/
5538 /*-----------------------------------------------------------------*/
5539 static void dumpCond(int cond)
5540 {
5541
5542   static char *pcc_str[] = {
5543     //"PCC_NONE",
5544     "PCC_REGISTER",
5545     "PCC_REGISTER2",
5546     "PCC_C",
5547     "PCC_Z",
5548     "PCC_DC",
5549     "PCC_OV",
5550     "PCC_N",
5551     "PCC_W",
5552     "PCC_EXAMINE_PCOP",
5553     "PCC_LITERAL",
5554     "PCC_REL_ADDR"
5555   };
5556
5557   int ncond = sizeof(pcc_str) / sizeof(char *);
5558   int i,j;
5559
5560   fprintf(stderr, "0x%04X\n",cond);
5561
5562   for(i=0,j=1; i<ncond; i++, j<<=1)
5563     if(cond & j)
5564       fprintf(stderr, "  %s\n",pcc_str[i]);
5565
5566 }
5567 #endif
5568
5569 #if 0
5570 /*-----------------------------------------------------------------*/
5571 /*-----------------------------------------------------------------*/
5572 static void FlowStats(pCodeFlow *pcflow)
5573 {
5574
5575   pCode *pc;
5576
5577   if(!isPCFL(pcflow))
5578     return;
5579
5580   fprintf(stderr, " FlowStats - flow block (seq=%d)\n", pcflow->pc.seq);
5581
5582   pc = pic16_findNextpCode(PCODE(pcflow), PC_OPCODE);
5583
5584   if(!pc) {
5585     fprintf(stderr, " FlowStats - empty flow (seq=%d)\n", pcflow->pc.seq);
5586     return;
5587   }
5588
5589
5590   fprintf(stderr, "  FlowStats inCond: ");
5591   dumpCond(pcflow->inCond);
5592   fprintf(stderr, "  FlowStats outCond: ");
5593   dumpCond(pcflow->outCond);
5594
5595 }
5596 #endif
5597 /*-----------------------------------------------------------------*
5598  * int isBankInstruction(pCode *pc) - examine the pCode *pc to determine
5599  *    if it affects the banking bits.
5600  *
5601  * return: -1 == Banking bits are unaffected by this pCode.
5602  *
5603  * return: > 0 == Banking bits are affected.
5604  *
5605  *  If the banking bits are affected, then the returned value describes
5606  * which bits are affected and how they're affected. The lower half
5607  * of the integer maps to the bits that are affected, the upper half
5608  * to whether they're set or cleared.
5609  *
5610  *-----------------------------------------------------------------*/
5611
5612 static int isBankInstruction(pCode *pc)
5613 {
5614   regs *reg;
5615   int bank = -1;
5616
5617   if(!isPCI(pc))
5618     return -1;
5619
5620   if( PCI(pc)->op == POC_MOVLB ||
5621       (( (reg = pic16_getRegFromInstruction(pc)) != NULL) && isBSR_REG(reg))) {
5622     bank = PCOL(pc)->lit;
5623   }
5624
5625   return bank;
5626 }
5627
5628
5629 /*-----------------------------------------------------------------*/
5630 /*-----------------------------------------------------------------*/
5631 static void FillFlow(pCodeFlow *pcflow)
5632 {
5633
5634   pCode *pc;
5635   int cur_bank;
5636
5637   if(!isPCFL(pcflow))
5638     return;
5639
5640   //  fprintf(stderr, " FillFlow - flow block (seq=%d)\n", pcflow->pc.seq);
5641
5642   pc = pic16_findNextpCode(PCODE(pcflow), PC_OPCODE);
5643
5644   if(!pc) {
5645     //fprintf(stderr, " FillFlow - empty flow (seq=%d)\n", pcflow->pc.seq);
5646     return;
5647   }
5648
5649   cur_bank = -1;
5650
5651   do {
5652     isBankInstruction(pc);
5653     pc = pc->next;
5654   } while (pc && (pc != pcflow->end) && !isPCFL(pc));
5655
5656 /*
5657   if(!pc ) {
5658     fprintf(stderr, "  FillFlow - Bad end of flow\n");
5659   } else {
5660     fprintf(stderr, "  FillFlow - Ending flow with\n  ");
5661     pc->print(stderr,pc);
5662   }
5663
5664   fprintf(stderr, "  FillFlow inCond: ");
5665   dumpCond(pcflow->inCond);
5666   fprintf(stderr, "  FillFlow outCond: ");
5667   dumpCond(pcflow->outCond);
5668 */
5669 }
5670
5671 /*-----------------------------------------------------------------*/
5672 /*-----------------------------------------------------------------*/
5673 static void LinkFlow_pCode(pCodeInstruction *from, pCodeInstruction *to)
5674 {
5675   pCodeFlowLink *fromLink, *toLink;
5676
5677   if(!from || !to || !to->pcflow || !from->pcflow)
5678     return;
5679
5680   fromLink = pic16_newpCodeFlowLink(from->pcflow);
5681   toLink   = pic16_newpCodeFlowLink(to->pcflow);
5682
5683   addSetIfnotP(&(from->pcflow->to), toLink);   //to->pcflow);
5684   addSetIfnotP(&(to->pcflow->from), fromLink); //from->pcflow);
5685
5686 }
5687
5688 /*-----------------------------------------------------------------*
5689  * void LinkFlow(pBlock *pb)
5690  *
5691  * In pic16_BuildFlow, the PIC code has been partitioned into contiguous
5692  * non-branching segments. In LinkFlow, we determine the execution
5693  * order of these segments. For example, if one of the segments ends
5694  * with a skip, then we know that there are two possible flow segments
5695  * to which control may be passed.
5696  *-----------------------------------------------------------------*/
5697 static void LinkFlow(pBlock *pb)
5698 {
5699   pCode *pc=NULL;
5700   pCode *pcflow;
5701   pCode *pct;
5702
5703   //fprintf(stderr,"linkflow \n");
5704
5705   for( pcflow = pic16_findNextpCode(pb->pcHead, PC_FLOW);
5706        pcflow != NULL;
5707        pcflow = pic16_findNextpCode(pcflow->next, PC_FLOW) ) {
5708
5709     if(!isPCFL(pcflow))
5710       fprintf(stderr, "LinkFlow - pcflow is not a flow object ");
5711
5712     //fprintf(stderr," link: ");
5713     //pcflow->print(stderr,pcflow);
5714
5715     //FillFlow(PCFL(pcflow));
5716
5717     pc = PCFL(pcflow)->end;
5718
5719     //fprintf(stderr, "LinkFlow - flow block (seq=%d) ", pcflow->seq);
5720     if(isPCI_SKIP(pc)) {
5721       //fprintf(stderr, "ends with skip\n");
5722       //pc->print(stderr,pc);
5723       pct=pic16_findNextInstruction(pc->next);
5724       LinkFlow_pCode(PCI(pc),PCI(pct));
5725       pct=pic16_findNextInstruction(pct->next);
5726       LinkFlow_pCode(PCI(pc),PCI(pct));
5727       continue;
5728     }
5729
5730     if(isPCI_BRANCH(pc)) {
5731       pCodeOpLabel *pcol = PCOLAB(PCI(pc)->pcop);
5732
5733       //fprintf(stderr, "ends with branch\n  ");
5734       //pc->print(stderr,pc);
5735
5736       if(!(pcol && isPCOLAB(pcol))) {
5737         if((PCI(pc)->op != POC_RETLW)
5738                 && (PCI(pc)->op != POC_RETURN) && (PCI(pc)->op != POC_CALL) && (PCI(pc)->op != POC_RETFIE) ) {
5739
5740                 /* continue if label is '$' which assembler knows how to parse */
5741                 if(((PCI(pc)->pcop->type == PO_STR) && !strcmp(PCI(pc)->pcop->name, "$")))continue;
5742
5743                 pc->print(stderr,pc);
5744                 fprintf(stderr, "ERROR: %s, branch instruction doesn't have label\n",__FUNCTION__);
5745         }
5746         continue;
5747       }
5748
5749       if( (pct = findLabelinpBlock(pb,pcol)) != NULL)
5750         LinkFlow_pCode(PCI(pc),PCI(pct));
5751       else
5752         fprintf(stderr, "ERROR: %s, couldn't find label. key=%d,lab=%s\n",
5753                 __FUNCTION__,pcol->key,((PCOP(pcol)->name)?PCOP(pcol)->name:"-"));
5754   //fprintf(stderr,"pic16_newpCodeOpLabel: key=%d, name=%s\n",key,((s)?s:""));
5755
5756       continue;
5757     }
5758
5759     if(isPCI(pc)) {
5760       //fprintf(stderr, "ends with non-branching instruction:\n");
5761       //pc->print(stderr,pc);
5762
5763       LinkFlow_pCode(PCI(pc),PCI(pic16_findNextInstruction(pc->next)));
5764
5765       continue;
5766     }
5767
5768     if(pc) {
5769       //fprintf(stderr, "ends with unknown\n");
5770       //pc->print(stderr,pc);
5771       continue;
5772     }
5773
5774     //fprintf(stderr, "ends with nothing: ERROR\n");
5775
5776   }
5777 }
5778 /*-----------------------------------------------------------------*/
5779 /*-----------------------------------------------------------------*/
5780
5781 /*-----------------------------------------------------------------*/
5782 /*-----------------------------------------------------------------*/
5783 int pic16_isPCinFlow(pCode *pc, pCode *pcflow)
5784 {
5785
5786   if(!pc || !pcflow)
5787     return 0;
5788
5789   if(!isPCI(pc) || !PCI(pc)->pcflow || !isPCFL(pcflow) )
5790     return 0;
5791
5792   if( PCI(pc)->pcflow->pc.seq == pcflow->seq)
5793     return 1;
5794
5795   return 0;
5796 }
5797
5798
5799
5800
5801
5802 /*-----------------------------------------------------------------*/
5803 /* insertBankSwitch - inserts a bank switch statement in the assembly listing */
5804 /*-----------------------------------------------------------------*/
5805 static void insertBankSwitch(int position, pCode *pc, int bsr)
5806 {
5807   pCode *new_pc;
5808   regs *reg;
5809
5810   if(!pc)
5811     return;
5812
5813 /*
5814  * if bsr == -1 then do not insert a MOVLB instruction, but rather
5815  * insert a BANKSEL assembler directive for the symbol used by
5816  * the pCode. This will allow the linker to setup the correct
5817  * bank at linking time
5818  */
5819
5820         if(!pic16_options.gen_banksel || bsr != -1) {
5821 //              new_pc = pic16_newpCode(POC_MOVLB, pic16_newpCodeOpLit(bsr));
5822                 return;
5823         } else {
5824                 /* emit the BANKSEL [symbol] */
5825
5826                 /* FIXME */
5827                 /* IMPORTANT: The following code does not check if a symbol is
5828                  * split in multiple banks. This should be corrected. - VR 6/6/2003 */
5829
5830                 reg = pic16_getRegFromInstruction(pc);
5831                 if(!reg)return;
5832                 new_pc = pic16_newpCodeAsmDir("BANKSEL", "%s", pic16_get_op_from_instruction(PCI(pc)));
5833
5834                 position = 0;           // position is always before (sanity check!)
5835         }
5836
5837 #if 0
5838         fprintf(stderr, "%s:%d: inserting bank switch\tbank = %d\n", __FUNCTION__, __LINE__, bsr);
5839         pc->print(stderr, pc);
5840 #endif
5841
5842         if(position) {
5843                 /* insert the bank switch after this pc instruction */
5844                 pCode *pcnext = pic16_findNextInstruction(pc);
5845                 pic16_pCodeInsertAfter(pc, new_pc);
5846                 if(pcnext)
5847                         pc = pcnext;
5848
5849         } else
5850                 pic16_pCodeInsertAfter(pc->prev, new_pc);
5851
5852   /* Move the label, if there is one */
5853
5854         if(PCI(pc)->label) {
5855 //              fprintf(stderr, "%s:%d: moving label due to bank switch directive src= 0x%p dst= 0x%p\n",
5856 //                      __FILE__, __LINE__, pc, new_pc);
5857                 PCAD(new_pc)->pci.label = PCI(pc)->label;
5858                 PCI(pc)->label = NULL;
5859         }
5860
5861 //  fprintf(stderr, "BankSwitch has been inserted\n");
5862 }
5863
5864
5865 /*-----------------------------------------------------------------*/
5866 /*int compareBankFlow - compare the banking requirements between   */
5867 /*  flow objects. */
5868 /*-----------------------------------------------------------------*/
5869 static int compareBankFlow(pCodeFlow *pcflow, pCodeFlowLink *pcflowLink, int toORfrom)
5870 {
5871
5872   if(!pcflow || !pcflowLink || !pcflowLink->pcflow)
5873     return 0;
5874
5875   if(!isPCFL(pcflow) || !isPCFL(pcflowLink->pcflow))
5876     return 0;
5877
5878   if(pcflow->firstBank == -1)
5879     return 0;
5880
5881
5882   if(pcflowLink->pcflow->firstBank == -1) {
5883     pCodeFlowLink *pctl = setFirstItem( toORfrom ?
5884                                         pcflowLink->pcflow->to :
5885                                         pcflowLink->pcflow->from);
5886     return compareBankFlow(pcflow, pctl, toORfrom);
5887   }
5888
5889   if(toORfrom) {
5890     if(pcflow->lastBank == pcflowLink->pcflow->firstBank)
5891       return 0;
5892
5893     pcflowLink->bank_conflict++;
5894     pcflowLink->pcflow->FromConflicts++;
5895     pcflow->ToConflicts++;
5896   } else {
5897
5898     if(pcflow->firstBank == pcflowLink->pcflow->lastBank)
5899       return 0;
5900
5901     pcflowLink->bank_conflict++;
5902     pcflowLink->pcflow->ToConflicts++;
5903     pcflow->FromConflicts++;
5904
5905   }
5906   /*
5907   fprintf(stderr,"compare flow found conflict: seq %d from conflicts %d, to conflicts %d\n",
5908           pcflowLink->pcflow->pc.seq,
5909           pcflowLink->pcflow->FromConflicts,
5910           pcflowLink->pcflow->ToConflicts);
5911   */
5912   return 1;
5913
5914 }
5915
5916 #if 0
5917 /*-----------------------------------------------------------------*/
5918 /*-----------------------------------------------------------------*/
5919 static void DumpFlow(pBlock *pb)
5920 {
5921   pCode *pc=NULL;
5922   pCode *pcflow;
5923   pCodeFlowLink *pcfl;
5924
5925
5926   fprintf(stderr,"Dump flow \n");
5927   pb->pcHead->print(stderr, pb->pcHead);
5928
5929   pcflow = pic16_findNextpCode(pb->pcHead, PC_FLOW);
5930   pcflow->print(stderr,pcflow);
5931
5932   for( pcflow = pic16_findNextpCode(pb->pcHead, PC_FLOW);
5933        pcflow != NULL;
5934        pcflow = pic16_findNextpCode(pcflow->next, PC_FLOW) ) {
5935
5936     if(!isPCFL(pcflow)) {
5937       fprintf(stderr, "DumpFlow - pcflow is not a flow object ");
5938       continue;
5939     }
5940     fprintf(stderr,"dumping: ");
5941     pcflow->print(stderr,pcflow);
5942     FlowStats(PCFL(pcflow));
5943
5944     for(pcfl = setFirstItem(PCFL(pcflow)->to); pcfl; pcfl=setNextItem(PCFL(pcflow)->to)) {
5945
5946       pc = PCODE(pcfl->pcflow);
5947
5948       fprintf(stderr, "    from seq %d:\n",pc->seq);
5949       if(!isPCFL(pc)) {
5950         fprintf(stderr,"oops dumpflow - from is not a pcflow\n");
5951         pc->print(stderr,pc);
5952       }
5953
5954     }
5955
5956     for(pcfl = setFirstItem(PCFL(pcflow)->to); pcfl; pcfl=setNextItem(PCFL(pcflow)->to)) {
5957
5958       pc = PCODE(pcfl->pcflow);
5959
5960       fprintf(stderr, "    to seq %d:\n",pc->seq);
5961       if(!isPCFL(pc)) {
5962         fprintf(stderr,"oops dumpflow - to is not a pcflow\n");
5963         pc->print(stderr,pc);
5964       }
5965
5966     }
5967
5968   }
5969
5970 }
5971 #endif
5972 /*-----------------------------------------------------------------*/
5973 /*-----------------------------------------------------------------*/
5974 static int OptimizepBlock(pBlock *pb)
5975 {
5976   pCode *pc, *pcprev;
5977   int matches =0;
5978
5979   if(!pb || !peepOptimizing)
5980     return 0;
5981
5982   DFPRINTF((stderr," Optimizing pBlock: %c\n",getpBlock_dbName(pb)));
5983 /*
5984   for(pc = pb->pcHead; pc; pc = pc->next)
5985     matches += pic16_pCodePeepMatchRule(pc);
5986 */
5987
5988   pc = pic16_findNextInstruction(pb->pcHead);
5989   if(!pc)
5990     return 0;
5991
5992   pcprev = pc->prev;
5993   do {
5994
5995
5996     if(pic16_pCodePeepMatchRule(pc)) {
5997
5998       matches++;
5999
6000       if(pcprev)
6001         pc = pic16_findNextInstruction(pcprev->next);
6002       else
6003         pc = pic16_findNextInstruction(pb->pcHead);
6004     } else
6005       pc = pic16_findNextInstruction(pc->next);
6006   } while(pc);
6007
6008   if(matches)
6009     DFPRINTF((stderr," Optimizing pBlock: %c - matches=%d\n",getpBlock_dbName(pb),matches));
6010   return matches;
6011
6012 }
6013
6014 /*-----------------------------------------------------------------*/
6015 /*-----------------------------------------------------------------*/
6016 static pCode * findInstructionUsingLabel(pCodeLabel *pcl, pCode *pcs)
6017 {
6018   pCode *pc;
6019
6020   for(pc = pcs; pc; pc = pc->next) {
6021
6022     if(((pc->type == PC_OPCODE) || (pc->type == PC_INLINE)) &&
6023        (PCI(pc)->pcop) &&
6024        (PCI(pc)->pcop->type == PO_LABEL) &&
6025        (PCOLAB(PCI(pc)->pcop)->key == pcl->key))
6026       return pc;
6027   }
6028
6029
6030   return NULL;
6031 }
6032
6033 /*-----------------------------------------------------------------*/
6034 /*-----------------------------------------------------------------*/
6035 static void exchangeLabels(pCodeLabel *pcl, pCode *pc)
6036 {
6037
6038   char *s=NULL;
6039
6040   if(isPCI(pc) &&
6041      (PCI(pc)->pcop) &&
6042      (PCI(pc)->pcop->type == PO_LABEL)) {
6043
6044     pCodeOpLabel *pcol = PCOLAB(PCI(pc)->pcop);
6045
6046 //      fprintf(stderr,"changing label key from %d to %d\n",pcol->key, pcl->key);
6047     if(pcol->pcop.name)
6048       free(pcol->pcop.name);
6049
6050     /* If the key is negative, then we (probably) have a label to
6051      * a function and the name is already defined */
6052
6053     if(pcl->key>0)
6054       sprintf(s=buffer,"_%05d_DS_",pcl->key);
6055     else
6056       s = pcl->label;
6057
6058     //sprintf(buffer,"_%05d_DS_",pcl->key);
6059     if(!s) {
6060       fprintf(stderr, "ERROR %s:%d function label is null\n",__FUNCTION__,__LINE__);
6061     }
6062     pcol->pcop.name = Safe_strdup(s);
6063     pcol->key = pcl->key;
6064     //pc->print(stderr,pc);
6065
6066   }
6067
6068
6069 }
6070
6071 /*-----------------------------------------------------------------*/
6072 /* pBlockRemoveUnusedLabels - remove the pCode labels from the     */
6073 /*                            pCode chain if they're not used.     */
6074 /*-----------------------------------------------------------------*/
6075 static void pBlockRemoveUnusedLabels(pBlock *pb)
6076 {
6077   pCode *pc; pCodeLabel *pcl;
6078
6079   if(!pb)
6080     return;
6081
6082   for(pc = pb->pcHead; (pc=pic16_findNextInstruction(pc->next)) != NULL; ) {
6083
6084     pBranch *pbr = PCI(pc)->label;
6085     if(pbr && pbr->next) {
6086       pCode *pcd = pb->pcHead;
6087
6088       //fprintf(stderr, "multiple labels\n");
6089       //pc->print(stderr,pc);
6090
6091       pbr = pbr->next;
6092       while(pbr) {
6093
6094         while ( (pcd = findInstructionUsingLabel(PCL(PCI(pc)->label->pc), pcd)) != NULL) {
6095           //fprintf(stderr,"Used by:\n");
6096           //pcd->print(stderr,pcd);
6097
6098           exchangeLabels(PCL(pbr->pc),pcd);
6099
6100           pcd = pcd->next;
6101         }
6102         pbr = pbr->next;
6103       }
6104     }
6105   }
6106
6107   for(pc = pb->pcHead; pc; pc = pc->next) {
6108
6109     if(isPCL(pc)) // pc->type == PC_LABEL)
6110       pcl = PCL(pc);
6111     else if (isPCI(pc) && PCI(pc)->label) //((pc->type == PC_OPCODE) && PCI(pc)->label)
6112       pcl = PCL(PCI(pc)->label->pc);
6113     else continue;
6114
6115         //fprintf(stderr," found  A LABEL !!! key = %d, %s\n", pcl->key,pcl->label);
6116
6117     /* This pCode is a label, so search the pBlock to see if anyone
6118      * refers to it */
6119
6120     if( (pcl->key>0) && (!findInstructionUsingLabel(pcl, pb->pcHead))) {
6121     //if( !findInstructionUsingLabel(pcl, pb->pcHead)) {
6122       /* Couldn't find an instruction that refers to this label
6123        * So, unlink the pCode label from it's pCode chain
6124        * and destroy the label */
6125       //fprintf(stderr," removed  A LABEL !!! key = %d, %s\n", pcl->key,pcl->label);
6126
6127       DFPRINTF((stderr," !!! REMOVED A LABEL !!! key = %d, %s\n", pcl->key,pcl->label));
6128       if(pc->type == PC_LABEL) {
6129         pic16_unlinkpCode(pc);
6130         pCodeLabelDestruct(pc);
6131       } else {
6132         unlinkpCodeFromBranch(pc, PCODE(pcl));
6133         /*if(pc->label->next == NULL && pc->label->pc == NULL) {
6134           free(pc->label);
6135         }*/
6136       }
6137
6138     }
6139   }
6140
6141 }
6142
6143
6144 /*-----------------------------------------------------------------*/
6145 /* pic16_pBlockMergeLabels - remove the pCode labels from the pCode      */
6146 /*                     chain and put them into pBranches that are  */
6147 /*                     associated with the appropriate pCode       */
6148 /*                     instructions.                               */
6149 /*-----------------------------------------------------------------*/
6150 void pic16_pBlockMergeLabels(pBlock *pb)
6151 {
6152   pBranch *pbr;
6153   pCode *pc, *pcnext=NULL;
6154
6155   if(!pb)
6156     return;
6157
6158   /* First, Try to remove any unused labels */
6159   //pBlockRemoveUnusedLabels(pb);
6160
6161   /* Now loop through the pBlock and merge the labels with the opcodes */
6162
6163   pc = pb->pcHead;
6164   //  for(pc = pb->pcHead; pc; pc = pc->next) {
6165
6166   while(pc) {
6167     pCode *pcn = pc->next;
6168
6169     if(pc->type == PC_LABEL) {
6170
6171 //      fprintf(stderr," checking merging label %s\n",PCL(pc)->label);
6172 //      fprintf(stderr,"Checking label key = %d\n",PCL(pc)->key);
6173
6174       if((pcnext = pic16_findNextInstruction(pc) )) {
6175
6176 //              pcnext->print(stderr, pcnext);
6177
6178         // Unlink the pCode label from it's pCode chain
6179         pic16_unlinkpCode(pc);
6180
6181 //      fprintf(stderr,"Merged label key = %d\n",PCL(pc)->key);
6182         // And link it into the instruction's pBranch labels. (Note, since
6183         // it's possible to have multiple labels associated with one instruction
6184         // we must provide a means to accomodate the additional labels. Thus
6185         // the labels are placed into the singly-linked list "label" as
6186         // opposed to being a single member of the pCodeInstruction.)
6187
6188         //_ALLOC(pbr,sizeof(pBranch));
6189 #if 1
6190         pbr = Safe_calloc(1,sizeof(pBranch));
6191         pbr->pc = pc;
6192         pbr->next = NULL;
6193
6194         PCI(pcnext)->label = pic16_pBranchAppend(PCI(pcnext)->label,pbr);
6195 #endif
6196       } else {
6197         fprintf(stderr, "WARNING: couldn't associate label %s with an instruction\n",PCL(pc)->label);
6198       }
6199     } else if(pc->type == PC_CSOURCE) {
6200
6201       /* merge the source line symbolic info into the next instruction */
6202       if((pcnext = pic16_findNextInstruction(pc) )) {
6203
6204         // Unlink the pCode label from it's pCode chain
6205         pic16_unlinkpCode(pc);
6206         PCI(pcnext)->cline = PCCS(pc);
6207         //fprintf(stderr, "merging CSRC\n");
6208         //genericPrint(stderr,pcnext);
6209       }
6210
6211     }
6212     pc = pcn;
6213   }
6214   pBlockRemoveUnusedLabels(pb);
6215
6216 }
6217
6218 /*-----------------------------------------------------------------*/
6219 /*-----------------------------------------------------------------*/
6220 static int OptimizepCode(char dbName)
6221 {
6222 #define MAX_PASSES 4
6223
6224   int matches = 0;
6225   int passes = 0;
6226   pBlock *pb;
6227
6228   if(!the_pFile)
6229     return 0;
6230
6231   DFPRINTF((stderr," Optimizing pCode\n"));
6232
6233   do {
6234     matches = 0;
6235     for(pb = the_pFile->pbHead; pb; pb = pb->next) {
6236       if('*' == dbName || getpBlock_dbName(pb) == dbName)
6237         matches += OptimizepBlock(pb);
6238     }
6239   }
6240   while(matches && ++passes < MAX_PASSES);
6241
6242   return matches;
6243 }
6244
6245 /*-----------------------------------------------------------------*/
6246 /* pic16_popCopyGPR2Bit - copy a pcode operator                          */
6247 /*-----------------------------------------------------------------*/
6248
6249 pCodeOp *pic16_popCopyGPR2Bit(pCodeOp *pc, int bitval)
6250 {
6251   pCodeOp *pcop;
6252
6253   pcop = pic16_newpCodeOpBit(pc->name, bitval, 0);
6254
6255   if( !( (pcop->type == PO_LABEL) ||
6256          (pcop->type == PO_LITERAL) ||
6257          (pcop->type == PO_STR) ))
6258     PCOR(pcop)->r = PCOR(pc)->r;  /* This is dangerous... */
6259     PCOR(pcop)->r->wasUsed = 1;
6260
6261   return pcop;
6262 }
6263
6264
6265 /*----------------------------------------------------------------------*
6266  * pic16_areRegsSame - check to see if the names of two registers match *
6267  *----------------------------------------------------------------------*/
6268 int pic16_areRegsSame(regs *r1, regs *r2)
6269 {
6270         if(!strcmp(r1->name, r2->name))return 1;
6271
6272   return 0;
6273 }
6274
6275
6276 /*-----------------------------------------------------------------*/
6277 /*-----------------------------------------------------------------*/
6278 static void pic16_FixRegisterBanking(pBlock *pb)
6279 {
6280   pCode *pc=NULL;
6281   pCode *pcprev=NULL;
6282   regs *reg, *prevreg;
6283
6284         if(!pb)
6285                 return;
6286
6287         pc = pic16_findNextpCode(pb->pcHead, PC_OPCODE);
6288         if(!pc)
6289                 return;
6290
6291         /* loop through all of the flow blocks with in one pblock */
6292
6293 //      fprintf(stderr,"%s:%d: Register banking\n", __FUNCTION__, __LINE__);
6294
6295   prevreg = NULL;
6296   do {
6297     /* at this point, pc should point to a PC_FLOW object */
6298     /* for each flow block, determine the register banking
6299        requirements */
6300
6301       if(isPCI(pc) && !PCI(pc)->is2MemOp) {
6302                 reg = pic16_getRegFromInstruction(pc);
6303
6304 #if 0
6305                 fprintf(stderr, "reg = %p\n", reg);
6306                 if(reg) {
6307                         fprintf(stderr, "%s:%d:  %s  %d\n",__FUNCTION__, __LINE__, reg->name, reg->rIdx);
6308                         fprintf(stderr, "addr = 0x%03x, bank = %d, bit=%d\tmapped = %d sfr=%d fix=%d\n",
6309                                 reg->address,REG_BANK(reg),reg->isBitField, reg->isMapped,
6310                                 pic16_finalMapping[ reg->address ].isSFR, reg->isFixed);
6311                 }
6312 #endif
6313
6314                 /* we can be 99% that within a pBlock, between two consequtive
6315                  * refernces to the same register, the extra banksel is needless */
6316
6317                 if((reg && !isACCESS_BANK(reg) && (isBankInstruction(pc) == -1))
6318                         && (!isPCI_LIT(pc))
6319                         && (PCI(pc)->op != POC_CALL)
6320
6321                         && ( ((pic16_options.opt_banksel>0)
6322                                 && (!prevreg || (prevreg && !pic16_areRegsSame(reg, prevreg))))
6323                             || (!pic16_options.opt_banksel)
6324                            )
6325                                    )
6326                            {
6327                   /* Examine the instruction before this one to make sure it is
6328                    * not a skip type instruction */
6329                         pcprev = findPrevpCode(pc->prev, PC_OPCODE);
6330
6331                         /* FIXME: if previous is SKIP pCode, we should move the BANKSEL
6332                          * before SKIP, but we have to check if the SKIP uses BANKSEL, etc... */
6333                         if(!pcprev || (pcprev && !isPCI_SKIP(pcprev))) {
6334                                 prevreg = reg;
6335                                 insertBankSwitch(0, pc, (pic16_options.gen_banksel)?-1:0);
6336                         }
6337                 }
6338
6339         pcprev = pc;
6340
6341       }
6342
6343       pc = pc->next;
6344   }while (pc);
6345
6346 #if 0
6347   if(pcprev && cur_bank) {
6348
6349     int pos = 1;  /* Assume that the bank switch instruction(s)
6350                    * are inserted after this instruction */
6351
6352     if((PCI(pcprev)->op == POC_RETLW) ||
6353        (PCI(pcprev)->op == POC_RETURN) ||
6354        (PCI(pcprev)->op == POC_RETFIE)) {
6355
6356       /* oops, a RETURN - we need to switch banks *before* the RETURN */
6357
6358       pos = 0;
6359
6360     }
6361
6362     /* Brute force - make sure that we point to bank 0 at the
6363      * end of each flow block */
6364
6365 //    insertBankSwitch(pos, pcprev, 0);
6366 /*
6367     new_pc = pic16_newpCode(POC_MOVLB, pic16_newpCodeOpLit(0));
6368     pic16_pCodeInsertAfter(pcprev, new_pc);
6369 */
6370     cur_bank = 0;
6371     //fprintf(stderr, "Brute force switch\n");
6372   }
6373 #endif
6374
6375 }
6376
6377
6378 static void pBlockDestruct(pBlock *pb)
6379 {
6380
6381   if(!pb)
6382     return;
6383
6384
6385   free(pb);
6386
6387 }
6388
6389 /*-----------------------------------------------------------------*/
6390 /* void mergepBlocks(char dbName) - Search for all pBlocks with the*/
6391 /*                                  name dbName and combine them   */
6392 /*                                  into one block                 */
6393 /*-----------------------------------------------------------------*/
6394 static void mergepBlocks(char dbName)
6395 {
6396
6397   pBlock *pb, *pbmerged = NULL,*pbn;
6398
6399   pb = the_pFile->pbHead;
6400
6401   //fprintf(stderr," merging blocks named %c\n",dbName);
6402   while(pb) {
6403
6404     pbn = pb->next;
6405     //fprintf(stderr,"looking at %c\n",getpBlock_dbName(pb));
6406     if( getpBlock_dbName(pb) == dbName) {
6407
6408       //fprintf(stderr," merged block %c\n",dbName);
6409
6410       if(!pbmerged) {
6411         pbmerged = pb;
6412       } else {
6413         pic16_addpCode2pBlock(pbmerged, pb->pcHead);
6414         /* pic16_addpCode2pBlock doesn't handle the tail: */
6415         pbmerged->pcTail = pb->pcTail;
6416
6417         pb->prev->next = pbn;
6418         if(pbn)
6419           pbn->prev = pb->prev;
6420
6421
6422         pBlockDestruct(pb);
6423       }
6424       //pic16_printpBlock(stderr, pbmerged);
6425     }
6426     pb = pbn;
6427   }
6428
6429 }
6430
6431 /*-----------------------------------------------------------------*/
6432 /* AnalyzeFlow - Examine the flow of the code and optimize         */
6433 /*                                                                 */
6434 /* level 0 == minimal optimization                                 */
6435 /*   optimize registers that are used only by two instructions     */
6436 /* level 1 == maximal optimization                                 */
6437 /*   optimize by looking at pairs of instructions that use the     */
6438 /*   register.                                                     */
6439 /*-----------------------------------------------------------------*/
6440
6441 static void AnalyzeFlow(int level)
6442 {
6443   static int times_called=0;
6444   pBlock *pb;
6445
6446         if(!the_pFile) {
6447
6448                 /* remove unused allocated registers before exiting */
6449                 pic16_RemoveUnusedRegisters();
6450
6451           return;
6452         }
6453
6454
6455   /* if this is not the first time this function has been called,
6456      then clean up old flow information */
6457         if(times_called++) {
6458                 for(pb = the_pFile->pbHead; pb; pb = pb->next)
6459                         unBuildFlow(pb);
6460
6461                 pic16_RegsUnMapLiveRanges();
6462         }
6463
6464         GpcFlowSeq = 1;
6465
6466   /* Phase 2 - Flow Analysis - Register Banking
6467    *
6468    * In this phase, the individual flow blocks are examined
6469    * and register banking is fixed.
6470    */
6471
6472 #if 0
6473         for(pb = the_pFile->pbHead; pb; pb = pb->next)
6474                 pic16_FixRegisterBanking(pb);
6475 #endif
6476
6477   /* Phase 2 - Flow Analysis
6478    *
6479    * In this phase, the pCode is partition into pCodeFlow
6480    * blocks. The flow blocks mark the points where a continuous
6481    * stream of instructions changes flow (e.g. because of
6482    * a call or goto or whatever).
6483    */
6484
6485         for(pb = the_pFile->pbHead; pb; pb = pb->next)
6486                 pic16_BuildFlow(pb);
6487
6488
6489   /* Phase 2 - Flow Analysis - linking flow blocks
6490    *
6491    * In this phase, the individual flow blocks are examined
6492    * to determine their order of excution.
6493    */
6494
6495         for(pb = the_pFile->pbHead; pb; pb = pb->next)
6496                 LinkFlow(pb);
6497
6498   /* Phase 3 - Flow Analysis - Flow Tree
6499    *
6500    * In this phase, the individual flow blocks are examined
6501    * to determine their order of execution.
6502    */
6503
6504         for(pb = the_pFile->pbHead; pb; pb = pb->next)
6505                 pic16_BuildFlowTree(pb);
6506
6507
6508   /* Phase x - Flow Analysis - Used Banks
6509    *
6510    * In this phase, the individual flow blocks are examined
6511    * to determine the Register Banks they use
6512    */
6513
6514 #if 0
6515         for(pb = the_pFile->pbHead; pb; pb = pb->next)
6516                 FixBankFlow(pb);
6517 #endif
6518
6519
6520         for(pb = the_pFile->pbHead; pb; pb = pb->next)
6521                 pic16_pCodeRegMapLiveRanges(pb);
6522
6523         pic16_RemoveUnusedRegisters();
6524
6525   //  for(pb = the_pFile->pbHead; pb; pb = pb->next)
6526         pic16_pCodeRegOptimizeRegUsage(level);
6527
6528
6529         if(!options.nopeep)
6530                 OptimizepCode('*');
6531
6532
6533 #if 0
6534         for(pb = the_pFile->pbHead; pb; pb = pb->next)
6535                 DumpFlow(pb);
6536 #endif
6537
6538   /* debug stuff */
6539         for(pb = the_pFile->pbHead; pb; pb = pb->next) {
6540           pCode *pcflow;
6541                 for( pcflow = pic16_findNextpCode(pb->pcHead, PC_FLOW);
6542                         (pcflow = pic16_findNextpCode(pcflow, PC_FLOW)) != NULL;
6543                         pcflow = pcflow->next) {
6544
6545                         FillFlow(PCFL(pcflow));
6546                 }
6547         }
6548
6549 #if 0
6550         for(pb = the_pFile->pbHead; pb; pb = pb->next) {
6551           pCode *pcflow;
6552
6553                 for( pcflow = pic16_findNextpCode(pb->pcHead, PC_FLOW);
6554                         (pcflow = pic16_findNextpCode(pcflow, PC_FLOW)) != NULL;
6555                         pcflow = pcflow->next) {
6556
6557                         FlowStats(PCFL(pcflow));
6558                 }
6559         }
6560 #endif
6561 }
6562
6563 /* VR -- no need to analyze banking in flow, but left here :
6564  *      1. because it may be used in the future for other purposes
6565  *      2. because if omitted we'll miss some optimization done here
6566  *
6567  * Perhaps I should rename it to something else
6568  */
6569
6570 /*-----------------------------------------------------------------*/
6571 /* pic16_AnalyzeBanking - Called after the memory addresses have been    */
6572 /*                  assigned to the registers.                     */
6573 /*                                                                 */
6574 /*-----------------------------------------------------------------*/
6575
6576 void pic16_AnalyzeBanking(void)
6577 {
6578   pBlock  *pb;
6579
6580         if(!pic16_picIsInitialized()) {
6581                 fprintf(stderr,"Temporary ERROR: at the moment you have to use\n");
6582                 fprintf(stderr,"an include file create by inc2h.pl. See SDCC source:\n");
6583                 fprintf(stderr,"support/scripts/inc2h.pl\n");
6584                 fprintf(stderr,"this is a nuisance bug that will be fixed shortly\n");
6585
6586                 /* I think it took a long long time to fix this bug! ;-) -- VR */
6587
6588                 exit(1);
6589         }
6590
6591
6592         /* Phase x - Flow Analysis - Used Banks
6593          *
6594          * In this phase, the individual flow blocks are examined
6595          * to determine the Register Banks they use
6596          */
6597
6598         AnalyzeFlow(0);
6599         AnalyzeFlow(1);
6600
6601 //      for(pb = the_pFile->pbHead; pb; pb = pb->next)
6602 //              BanksUsedFlow(pb);
6603
6604         if(!the_pFile)return;
6605
6606         for(pb = the_pFile->pbHead; pb; pb = pb->next) {
6607 //              fprintf(stderr, "%s:%d: Fix register banking in pb= 0x%p\n", __FILE__, __LINE__, pb);
6608                 pic16_FixRegisterBanking(pb);
6609         }
6610
6611 }
6612
6613 /*-----------------------------------------------------------------*/
6614 /* buildCallTree - Look at the flow and extract all of the calls.  */
6615 /*-----------------------------------------------------------------*/
6616 static set *register_usage(pBlock *pb);
6617
6618 static void buildCallTree(void    )
6619 {
6620   pBranch *pbr;
6621   pBlock  *pb;
6622   pCode   *pc;
6623
6624   if(!the_pFile)
6625     return;
6626
6627
6628
6629   /* Now build the call tree.
6630      First we examine all of the pCodes for functions.
6631      Keep in mind that the function boundaries coincide
6632      with pBlock boundaries.
6633
6634      The algorithm goes something like this:
6635      We have two nested loops. The outer loop iterates
6636      through all of the pBlocks/functions. The inner
6637      loop iterates through all of the pCodes for
6638      a given pBlock. When we begin iterating through
6639      a pBlock, the variable pc_fstart, pCode of the start
6640      of a function, is cleared. We then search for pCodes
6641      of type PC_FUNCTION. When one is encountered, we
6642      initialize pc_fstart to this and at the same time
6643      associate a new pBranch object that signifies a
6644      branch entry. If a return is found, then this signifies
6645      a function exit point. We'll link the pCodes of these
6646      returns to the matching pc_fstart.
6647
6648      When we're done, a doubly linked list of pBranches
6649      will exist. The head of this list is stored in
6650      `the_pFile', which is the meta structure for all
6651      of the pCode. Look at the pic16_printCallTree function
6652      on how the pBranches are linked together.
6653
6654    */
6655   for(pb = the_pFile->pbHead; pb; pb = pb->next) {
6656     pCode *pc_fstart=NULL;
6657     for(pc = pb->pcHead; pc; pc = pc->next) {
6658       if(isPCF(pc)) {
6659         if (PCF(pc)->fname) {
6660
6661           if(STRCASECMP(PCF(pc)->fname, "_main") == 0) {
6662             //fprintf(stderr," found main \n");
6663             pb->cmemmap = NULL;  /* FIXME do we need to free ? */
6664             pb->dbName = 'M';
6665           }
6666
6667           pbr = Safe_calloc(1,sizeof(pBranch));
6668           pbr->pc = pc_fstart = pc;
6669           pbr->next = NULL;
6670
6671           the_pFile->functions = pic16_pBranchAppend(the_pFile->functions,pbr);
6672
6673           // Here's a better way of doing the same:
6674           addSet(&pb->function_entries, pc);
6675
6676         } else {
6677           // Found an exit point in a function, e.g. return
6678           // (Note, there may be more than one return per function)
6679           if(pc_fstart)
6680             pBranchLink(PCF(pc_fstart), PCF(pc));
6681
6682           addSet(&pb->function_exits, pc);
6683         }
6684       } else if(isCALL(pc)) {
6685         addSet(&pb->function_calls,pc);
6686       }
6687     }
6688   }
6689
6690   /* Re-allocate the registers so that there are no collisions
6691    * between local variables when one function call another */
6692
6693   // this is weird...
6694   //  pic16_deallocateAllRegs();
6695
6696   for(pb = the_pFile->pbHead; pb; pb = pb->next) {
6697     if(!pb->visited)
6698       register_usage(pb);
6699   }
6700
6701 }
6702
6703 /*-----------------------------------------------------------------*/
6704 /* pic16_AnalyzepCode - parse the pCode that has been generated and form */
6705 /*                all of the logical connections.                  */
6706 /*                                                                 */
6707 /* Essentially what's done here is that the pCode flow is          */
6708 /* determined.                                                     */
6709 /*-----------------------------------------------------------------*/
6710
6711 void pic16_AnalyzepCode(char dbName)
6712 {
6713   pBlock *pb;
6714   int i,changes;
6715
6716   if(!the_pFile)
6717     return;
6718
6719   mergepBlocks('D');
6720
6721
6722   /* Phase 1 - Register allocation and peep hole optimization
6723    *
6724    * The first part of the analysis is to determine the registers
6725    * that are used in the pCode. Once that is done, the peep rules
6726    * are applied to the code. We continue to loop until no more
6727    * peep rule optimizations are found (or until we exceed the
6728    * MAX_PASSES threshold).
6729    *
6730    * When done, the required registers will be determined.
6731    *
6732    */
6733   i = 0;
6734   do {
6735
6736     DFPRINTF((stderr," Analyzing pCode: PASS #%d\n",i+1));
6737     //fprintf(stderr," Analyzing pCode: PASS #%d\n",i+1);
6738
6739     /* First, merge the labels with the instructions */
6740     for(pb = the_pFile->pbHead; pb; pb = pb->next) {
6741       if('*' == dbName || getpBlock_dbName(pb) == dbName) {
6742
6743         DFPRINTF((stderr," analyze and merging block %c\n",dbName));
6744         //fprintf(stderr," analyze and merging block %c\n",dbName);
6745         pic16_pBlockMergeLabels(pb);
6746         AnalyzepBlock(pb);
6747       } else {
6748         DFPRINTF((stderr," skipping block analysis dbName=%c blockname=%c\n",dbName,getpBlock_dbName));
6749       }
6750     }
6751
6752         if(!options.nopeep)
6753                 changes = OptimizepCode(dbName);
6754         else changes = 0;
6755
6756   } while(changes && (i++ < MAX_PASSES));
6757
6758   buildCallTree();
6759 }
6760
6761 /*-----------------------------------------------------------------*/
6762 /* ispCodeFunction - returns true if *pc is the pCode of a         */
6763 /*                   function                                      */
6764 /*-----------------------------------------------------------------*/
6765 static bool ispCodeFunction(pCode *pc)
6766 {
6767
6768   if(pc && pc->type == PC_FUNCTION && PCF(pc)->fname)
6769     return 1;
6770
6771   return 0;
6772 }
6773
6774 /*-----------------------------------------------------------------*/
6775 /* findFunction - Search for a function by name (given the name)   */
6776 /*                in the set of all functions that are in a pBlock */
6777 /* (note - I expect this to change because I'm planning to limit   */
6778 /*  pBlock's to just one function declaration                      */
6779 /*-----------------------------------------------------------------*/
6780 static pCode *findFunction(char *fname)
6781 {
6782   pBlock *pb;
6783   pCode *pc;
6784   if(!fname)
6785     return NULL;
6786
6787   for(pb = the_pFile->pbHead; pb; pb = pb->next) {
6788
6789     pc = setFirstItem(pb->function_entries);
6790     while(pc) {
6791
6792       if((pc->type == PC_FUNCTION) &&
6793          (PCF(pc)->fname) &&
6794          (strcmp(fname, PCF(pc)->fname)==0))
6795         return pc;
6796
6797       pc = setNextItem(pb->function_entries);
6798
6799     }
6800
6801   }
6802   return NULL;
6803 }
6804
6805 static void MarkUsedRegisters(set *regset)
6806 {
6807
6808   regs *r1,*r2;
6809
6810   for(r1=setFirstItem(regset); r1; r1=setNextItem(regset)) {
6811 //      fprintf(stderr, "marking register = %s\t", r1->name);
6812     r2 = pic16_regWithIdx(r1->rIdx);
6813 //      fprintf(stderr, "to register = %s\n", r2->name);
6814     r2->isFree = 0;
6815     r2->wasUsed = 1;
6816   }
6817 }
6818
6819 static void pBlockStats(FILE *of, pBlock *pb)
6820 {
6821
6822   pCode *pc;
6823   regs  *r;
6824
6825         if(!pic16_pcode_verbose)return;
6826
6827   fprintf(of,";***\n;  pBlock Stats: dbName = %c\n;***\n",getpBlock_dbName(pb));
6828
6829   // for now just print the first element of each set
6830   pc = setFirstItem(pb->function_entries);
6831   if(pc) {
6832     fprintf(of,";entry:  ");
6833     pc->print(of,pc);
6834   }
6835   pc = setFirstItem(pb->function_exits);
6836   if(pc) {
6837     fprintf(of,";has an exit\n");
6838     //pc->print(of,pc);
6839   }
6840
6841   pc = setFirstItem(pb->function_calls);
6842   if(pc) {
6843     fprintf(of,";functions called:\n");
6844
6845     while(pc) {
6846       if(pc->type == PC_OPCODE && PCI(pc)->op == POC_CALL) {
6847         fprintf(of,";   %s\n",pic16_get_op_from_instruction(PCI(pc)));
6848       }
6849       pc = setNextItem(pb->function_calls);
6850     }
6851   }
6852
6853   r = setFirstItem(pb->tregisters);
6854   if(r) {
6855     int n = elementsInSet(pb->tregisters);
6856
6857     fprintf(of,";%d compiler assigned register%c:\n",n, ( (n!=1) ? 's' : ' '));
6858
6859     while (r) {
6860       fprintf(of,";   %s\n",r->name);
6861       r = setNextItem(pb->tregisters);
6862     }
6863   }
6864 }
6865
6866 /*-----------------------------------------------------------------*/
6867 /*-----------------------------------------------------------------*/
6868 #if 0
6869 static void sequencepCode(void)
6870 {
6871   pBlock *pb;
6872   pCode *pc;
6873
6874
6875   for(pb = the_pFile->pbHead; pb; pb = pb->next) {
6876
6877     pb->seq = GpCodeSequenceNumber+1;
6878
6879     for( pc = pb->pcHead; pc; pc = pc->next)
6880       pc->seq = ++GpCodeSequenceNumber;
6881   }
6882
6883 }
6884 #endif
6885
6886 /*-----------------------------------------------------------------*/
6887 /*-----------------------------------------------------------------*/
6888 static set *register_usage(pBlock *pb)
6889 {
6890   pCode *pc,*pcn;
6891   set *registers=NULL;
6892   set *registersInCallPath = NULL;
6893
6894   /* check recursion */
6895
6896   pc = setFirstItem(pb->function_entries);
6897
6898   if(!pc)
6899     return registers;
6900
6901   pb->visited = 1;
6902
6903   if(pc->type != PC_FUNCTION)
6904     fprintf(stderr,"%s, first pc is not a function???\n",__FUNCTION__);
6905
6906   pc = setFirstItem(pb->function_calls);
6907   for( ; pc; pc = setNextItem(pb->function_calls)) {
6908
6909     if(pc->type == PC_OPCODE && PCI(pc)->op == POC_CALL) {
6910       char *dest = pic16_get_op_from_instruction(PCI(pc));
6911
6912       pcn = findFunction(dest);
6913       if(pcn)
6914         registersInCallPath = register_usage(pcn->pb);
6915     } else
6916       fprintf(stderr,"BUG? pCode isn't a POC_CALL %d\n",__LINE__);
6917
6918   }
6919
6920 #ifdef PCODE_DEBUG
6921   pBlockStats(stderr,pb);  // debug
6922 #endif
6923
6924   // Mark the registers in this block as used.
6925
6926   MarkUsedRegisters(pb->tregisters);
6927   if(registersInCallPath) {
6928     /* registers were used in the functions this pBlock has called */
6929     /* so now, we need to see if these collide with the ones we are */
6930     /* using here */
6931
6932     regs *r1,*r2, *newreg;
6933
6934     DFPRINTF((stderr,"comparing registers\n"));
6935
6936     r1 = setFirstItem(registersInCallPath);
6937     while(r1) {
6938
6939       r2 = setFirstItem(pb->tregisters);
6940
6941       while(r2 && (r1->type != REG_STK)) {
6942
6943         if(r2->rIdx == r1->rIdx) {
6944           newreg = pic16_findFreeReg(REG_GPR);
6945
6946
6947           if(!newreg) {
6948             DFPRINTF((stderr,"Bummer, no more registers.\n"));
6949             exit(1);
6950           }
6951
6952           DFPRINTF((stderr,"Cool found register collision nIdx=%d moving to %d\n",
6953                   r1->rIdx, newreg->rIdx));
6954           r2->rIdx = newreg->rIdx;
6955           //if(r2->name) free(r2->name);
6956           if(newreg->name)
6957             r2->name = Safe_strdup(newreg->name);
6958           else
6959             r2->name = NULL;
6960           newreg->isFree = 0;
6961           newreg->wasUsed = 1;
6962         }
6963         r2 = setNextItem(pb->tregisters);
6964       }
6965
6966       r1 = setNextItem(registersInCallPath);
6967     }
6968
6969     /* Collisions have been resolved. Now free the registers in the call path */
6970     r1 = setFirstItem(registersInCallPath);
6971     while(r1) {
6972       if(r1->type != REG_STK) {
6973         newreg = pic16_regWithIdx(r1->rIdx);
6974         newreg->isFree = 1;
6975       }
6976       r1 = setNextItem(registersInCallPath);
6977     }
6978
6979   }// else
6980   //    MarkUsedRegisters(pb->registers);
6981
6982   registers = unionSets(pb->tregisters, registersInCallPath, THROW_NONE);
6983 #ifdef PCODE_DEBUG
6984   if(registers)
6985     DFPRINTF((stderr,"returning regs\n"));
6986   else
6987     DFPRINTF((stderr,"not returning regs\n"));
6988
6989   DFPRINTF((stderr,"pBlock after register optim.\n"));
6990   pBlockStats(stderr,pb);  // debug
6991 #endif
6992
6993   return registers;
6994 }
6995
6996 /*-----------------------------------------------------------------*/
6997 /* pct2 - writes the call tree to a file                           */
6998 /*                                                                 */
6999 /*-----------------------------------------------------------------*/
7000 static void pct2(FILE *of,pBlock *pb,int indent)
7001 {
7002   pCode *pc,*pcn;
7003   int i;
7004   //  set *registersInCallPath = NULL;
7005
7006   if(!of)
7007     return;
7008
7009   if(indent > 10)
7010     return; //recursion ?
7011
7012   pc = setFirstItem(pb->function_entries);
7013
7014   if(!pc)
7015     return;
7016
7017   pb->visited = 0;
7018
7019   for(i=0;i<indent;i++)   // Indentation
7020     fputc(' ',of);
7021
7022   if(pc->type == PC_FUNCTION)
7023     fprintf(of,"%s\n",PCF(pc)->fname);
7024   else
7025     return;  // ???
7026
7027
7028   pc = setFirstItem(pb->function_calls);
7029   for( ; pc; pc = setNextItem(pb->function_calls)) {
7030
7031     if(pc->type == PC_OPCODE && PCI(pc)->op == POC_CALL) {
7032       char *dest = pic16_get_op_from_instruction(PCI(pc));
7033
7034       pcn = findFunction(dest);
7035       if(pcn)
7036         pct2(of,pcn->pb,indent+1);
7037     } else
7038       fprintf(of,"BUG? pCode isn't a POC_CALL %d\n",__LINE__);
7039
7040   }
7041
7042
7043 }
7044
7045
7046 /*-----------------------------------------------------------------*/
7047 /* pic16_printCallTree - writes the call tree to a file                  */
7048 /*                                                                 */
7049 /*-----------------------------------------------------------------*/
7050
7051 void pic16_printCallTree(FILE *of)
7052 {
7053   pBranch *pbr;
7054   pBlock  *pb;
7055   pCode   *pc;
7056
7057   if(!the_pFile)
7058     return;
7059
7060   if(!of)
7061     of = stderr;
7062
7063   fprintf(of, "\npBlock statistics\n");
7064   for(pb = the_pFile->pbHead; pb;  pb = pb->next )
7065     pBlockStats(of,pb);
7066
7067
7068
7069   fprintf(of,"Call Tree\n");
7070   pbr = the_pFile->functions;
7071   while(pbr) {
7072     if(pbr->pc) {
7073       pc = pbr->pc;
7074       if(!ispCodeFunction(pc))
7075         fprintf(of,"bug in call tree");
7076
7077
7078       fprintf(of,"Function: %s\n", PCF(pc)->fname);
7079
7080       while(pc->next && !ispCodeFunction(pc->next)) {
7081         pc = pc->next;
7082         if(pc->type == PC_OPCODE && PCI(pc)->op == POC_CALL)
7083           fprintf(of,"\t%s\n",pic16_get_op_from_instruction(PCI(pc)));
7084       }
7085     }
7086
7087     pbr = pbr->next;
7088   }
7089
7090
7091   fprintf(of,"\n**************\n\na better call tree\n");
7092   for(pb = the_pFile->pbHead; pb; pb = pb->next) {
7093     if(pb->visited)
7094       pct2(of,pb,0);
7095   }
7096
7097   for(pb = the_pFile->pbHead; pb; pb = pb->next) {
7098     fprintf(of,"block dbname: %c\n", getpBlock_dbName(pb));
7099   }
7100 }
7101
7102
7103
7104 /*-----------------------------------------------------------------*/
7105 /*                                                                 */
7106 /*-----------------------------------------------------------------*/
7107
7108 static void InlineFunction(pBlock *pb)
7109 {
7110   pCode *pc;
7111   pCode *pc_call;
7112
7113   if(!pb)
7114     return;
7115
7116   pc = setFirstItem(pb->function_calls);
7117
7118   for( ; pc; pc = setNextItem(pb->function_calls)) {
7119
7120     if(isCALL(pc)) {
7121       pCode *pcn = findFunction(pic16_get_op_from_instruction(PCI(pc)));
7122       pCode *pct;
7123       pCode *pce;
7124
7125       pBranch *pbr;
7126
7127       if(pcn && isPCF(pcn) && (PCF(pcn)->ncalled == 0)) {               /* change 0 to 1 to enable inlining */
7128
7129         //fprintf(stderr,"Cool can inline:\n");
7130         //pcn->print(stderr,pcn);
7131
7132         //fprintf(stderr,"recursive call Inline\n");
7133         InlineFunction(pcn->pb);
7134         //fprintf(stderr,"return from recursive call Inline\n");
7135
7136         /*
7137           At this point, *pc points to a CALL mnemonic, and
7138           *pcn points to the function that is being called.
7139
7140           To in-line this call, we need to remove the CALL
7141           and RETURN(s), and link the function pCode in with
7142           the CALLee pCode.
7143
7144         */
7145
7146
7147         /* Remove the CALL */
7148         pc_call = pc;
7149         pc = pc->prev;
7150
7151         /* remove callee pBlock from the pBlock linked list */
7152         removepBlock(pcn->pb);
7153
7154         pce = pcn;
7155         while(pce) {
7156           pce->pb = pb;
7157           pce = pce->next;
7158         }
7159
7160         /* Remove the Function pCode */
7161         pct = pic16_findNextInstruction(pcn->next);
7162
7163         /* Link the function with the callee */
7164         pc->next = pcn->next;
7165         pcn->next->prev = pc;
7166
7167         /* Convert the function name into a label */
7168
7169         pbr = Safe_calloc(1,sizeof(pBranch));
7170         pbr->pc = pic16_newpCodeLabel(PCF(pcn)->fname, -1);
7171         pbr->next = NULL;
7172         PCI(pct)->label = pic16_pBranchAppend(PCI(pct)->label,pbr);
7173         PCI(pct)->label = pic16_pBranchAppend(PCI(pct)->label,PCI(pc_call)->label);
7174
7175         /* turn all of the return's except the last into goto's */
7176         /* check case for 2 instruction pBlocks */
7177         pce = pic16_findNextInstruction(pcn->next);
7178         while(pce) {
7179           pCode *pce_next = pic16_findNextInstruction(pce->next);
7180
7181           if(pce_next == NULL) {
7182             /* found the last return */
7183             pCode *pc_call_next =  pic16_findNextInstruction(pc_call->next);
7184
7185             //fprintf(stderr,"found last return\n");
7186             //pce->print(stderr,pce);
7187             pce->prev->next = pc_call->next;
7188             pc_call->next->prev = pce->prev;
7189             PCI(pc_call_next)->label = pic16_pBranchAppend(PCI(pc_call_next)->label,
7190                                                       PCI(pce)->label);
7191           }
7192
7193           pce = pce_next;
7194         }
7195
7196
7197       }
7198     } else
7199       fprintf(stderr,"BUG? pCode isn't a POC_CALL %d\n",__LINE__);
7200
7201   }
7202
7203 }
7204
7205 /*-----------------------------------------------------------------*/
7206 /*                                                                 */
7207 /*-----------------------------------------------------------------*/
7208
7209 void pic16_InlinepCode(void)
7210 {
7211
7212   pBlock  *pb;
7213   pCode   *pc;
7214
7215   if(!the_pFile)
7216     return;
7217
7218   if(!functionInlining)
7219     return;
7220
7221   /* Loop through all of the function definitions and count the
7222    * number of times each one is called */
7223   //fprintf(stderr,"inlining %d\n",__LINE__);
7224
7225   for(pb = the_pFile->pbHead; pb; pb = pb->next) {
7226
7227     pc = setFirstItem(pb->function_calls);
7228
7229     for( ; pc; pc = setNextItem(pb->function_calls)) {
7230
7231       if(isCALL(pc)) {
7232         pCode *pcn = findFunction(pic16_get_op_from_instruction(PCI(pc)));
7233         if(pcn && isPCF(pcn)) {
7234           PCF(pcn)->ncalled++;
7235         }
7236       } else
7237         fprintf(stderr,"BUG? pCode isn't a POC_CALL %d\n",__LINE__);
7238
7239     }
7240   }
7241
7242   //fprintf(stderr,"inlining %d\n",__LINE__);
7243
7244   /* Now, Loop through the function definitions again, but this
7245    * time inline those functions that have only been called once. */
7246
7247   InlineFunction(the_pFile->pbHead);
7248   //fprintf(stderr,"inlining %d\n",__LINE__);
7249
7250   for(pb = the_pFile->pbHead; pb; pb = pb->next)
7251     unBuildFlow(pb);
7252
7253 }
7254
7255 char *pic_optype_names[]={
7256         "PO_NONE",         // No operand e.g. NOP
7257         "PO_W",              // The working register (as a destination)
7258         "PO_WREG",           // The working register (as a file register)
7259         "PO_STATUS",         // The 'STATUS' register
7260         "PO_BSR",            // The 'BSR' register
7261         "PO_FSR0",           // The "file select register" (in PIC18 family it's one
7262                              // of three)
7263         "PO_INDF0",          // The Indirect register
7264         "PO_INTCON",         // Interrupt Control register
7265         "PO_GPR_REGISTER",   // A general purpose register
7266         "PO_GPR_BIT",        // A bit of a general purpose register
7267         "PO_GPR_TEMP",       // A general purpose temporary register
7268         "PO_SFR_REGISTER",   // A special function register (e.g. PORTA)
7269         "PO_PCL",            // Program counter Low register
7270         "PO_PCLATH",         // Program counter Latch high register
7271         "PO_PCLATU",         // Program counter Latch upper register
7272         "PO_PRODL",          // Product Register Low
7273         "PO_PRODH",          // Product Register High
7274         "PO_LITERAL",        // A constant
7275         "PO_REL_ADDR",       // A relative address
7276         "PO_IMMEDIATE",      //  (8051 legacy)
7277         "PO_DIR",            // Direct memory (8051 legacy)
7278         "PO_CRY",            // bit memory (8051 legacy)
7279         "PO_BIT",            // bit operand.
7280         "PO_STR",            //  (8051 legacy)
7281         "PO_LABEL",
7282         "PO_WILD"            // Wild card operand in peep optimizer
7283 };
7284
7285
7286 char *dumpPicOptype(PIC_OPTYPE type)
7287 {
7288         return (pic_optype_names[ type ]);
7289 }