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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 //  if(pic16_pcode_verbose)
3659 //      fprintf(stderr, "%s:%d label name: %s\n", __FILE__, __LINE__, pcl->label);
3660
3661
3662   return ( (pCode *)pcl);
3663
3664 }
3665
3666
3667 /*-----------------------------------------------------------------*/
3668 /* newpBlock - create and return a pointer to a new pBlock         */
3669 /*-----------------------------------------------------------------*/
3670 static pBlock *newpBlock(void)
3671 {
3672
3673   pBlock *PpB;
3674
3675   PpB = Safe_calloc(1,sizeof(pBlock) );
3676   PpB->next = PpB->prev = NULL;
3677
3678   PpB->function_entries = PpB->function_exits = PpB->function_calls = NULL;
3679   PpB->tregisters = NULL;
3680   PpB->visited = 0;
3681   PpB->FlowTree = NULL;
3682
3683   return PpB;
3684
3685 }
3686
3687 /*-----------------------------------------------------------------*/
3688 /* pic16_newpCodeChain - create a new chain of pCodes                    */
3689 /*-----------------------------------------------------------------*
3690  *
3691  *  This function will create a new pBlock and the pointer to the
3692  *  pCode that is passed in will be the first pCode in the block.
3693  *-----------------------------------------------------------------*/
3694
3695
3696 pBlock *pic16_newpCodeChain(memmap *cm,char c, pCode *pc)
3697 {
3698
3699   pBlock *pB  = newpBlock();
3700
3701   pB->pcHead  = pB->pcTail = pc;
3702   pB->cmemmap = cm;
3703   pB->dbName  = c;
3704
3705   return pB;
3706 }
3707
3708 /*-----------------------------------------------------------------*/
3709 /* pic16_newpCodeOpLabel - Create a new label given the key              */
3710 /*  Note, a negative key means that the label is part of wild card */
3711 /*  (and hence a wild card label) used in the pCodePeep            */
3712 /*   optimizations).                                               */
3713 /*-----------------------------------------------------------------*/
3714
3715 pCodeOp *pic16_newpCodeOpLabel(char *name, int key)
3716 {
3717   char *s=NULL;
3718   static int label_key=-1;
3719
3720   pCodeOp *pcop;
3721
3722   pcop = Safe_calloc(1,sizeof(pCodeOpLabel) );
3723   pcop->type = PO_LABEL;
3724
3725   pcop->name = NULL;
3726
3727   if(key>0)
3728     sprintf(s=buffer,"_%05d_DS_",key);
3729   else
3730     s = name, key = label_key--;
3731
3732   if(s)
3733     pcop->name = Safe_strdup(s);
3734
3735   ((pCodeOpLabel *)pcop)->key = key;
3736
3737   //fprintf(stderr,"pic16_newpCodeOpLabel: key=%d, name=%s\n",key,((s)?s:""));
3738   return pcop;
3739 }
3740
3741 /*-----------------------------------------------------------------*/
3742 /*-----------------------------------------------------------------*/
3743 pCodeOp *pic16_newpCodeOpLit(int lit)
3744 {
3745   char *s = buffer;
3746   pCodeOp *pcop;
3747
3748
3749   pcop = Safe_calloc(1,sizeof(pCodeOpLit) );
3750   pcop->type = PO_LITERAL;
3751
3752   pcop->name = NULL;
3753   if(lit>=0) {
3754     sprintf(s,"0x%02x",lit);
3755     if(s)
3756       pcop->name = Safe_strdup(s);
3757   }
3758
3759   ((pCodeOpLit *)pcop)->lit = lit;
3760
3761   return pcop;
3762 }
3763
3764 /*-----------------------------------------------------------------*/
3765 /*-----------------------------------------------------------------*/
3766 pCodeOp *pic16_newpCodeOpLit2(int lit, pCodeOp *arg2)
3767 {
3768   char *s = buffer, tbuf[256], *tb=tbuf;
3769   pCodeOp *pcop;
3770
3771
3772   tb = pic16_get_op(arg2, NULL, 0);
3773   pcop = Safe_calloc(1,sizeof(pCodeOpLit2) );
3774   pcop->type = PO_LITERAL;
3775
3776   pcop->name = NULL;
3777   if(lit>=0) {
3778     sprintf(s,"0x%02x, %s",lit, tb);
3779     if(s)
3780       pcop->name = Safe_strdup(s);
3781   }
3782
3783   ((pCodeOpLit2 *)pcop)->lit = lit;
3784   ((pCodeOpLit2 *)pcop)->arg2 = arg2;
3785
3786   return pcop;
3787 }
3788
3789 /*-----------------------------------------------------------------*/
3790 /*-----------------------------------------------------------------*/
3791 pCodeOp *pic16_newpCodeOpImmd(char *name, int offset, int index, int code_space)
3792 {
3793   pCodeOp *pcop;
3794
3795         pcop = Safe_calloc(1,sizeof(pCodeOpImmd) );
3796         pcop->type = PO_IMMEDIATE;
3797         if(name) {
3798                 regs *r = pic16_dirregWithName(name);
3799                 pcop->name = Safe_strdup(name);
3800                 PCOI(pcop)->r = r;
3801
3802                 if(r) {
3803 //                      fprintf(stderr, "%s:%d %s reg %s exists\n",__FILE__, __LINE__, __FUNCTION__, name);
3804                         PCOI(pcop)->rIdx = r->rIdx;
3805                 } else {
3806 //                      fprintf(stderr, "%s:%d %s reg %s doesn't exist\n",
3807 //                              __FILE__, __LINE__, __FUNCTION__, name);
3808                         PCOI(pcop)->rIdx = -1;
3809                 }
3810 //                      fprintf(stderr,"%s %s %d\n",__FUNCTION__,name,offset);
3811         } else {
3812                 pcop->name = NULL;
3813         }
3814
3815         PCOI(pcop)->index = index;
3816         PCOI(pcop)->offset = offset;
3817         PCOI(pcop)->_const = code_space;
3818
3819   return pcop;
3820 }
3821
3822 /*-----------------------------------------------------------------*/
3823 /*-----------------------------------------------------------------*/
3824 pCodeOp *pic16_newpCodeOpWild(int id, pCodeWildBlock *pcwb, pCodeOp *subtype)
3825 {
3826   char *s = buffer;
3827   pCodeOp *pcop;
3828
3829
3830   if(!pcwb || !subtype) {
3831     fprintf(stderr, "Wild opcode declaration error: %s-%d\n",__FILE__,__LINE__);
3832     exit(1);
3833   }
3834
3835   pcop = Safe_calloc(1,sizeof(pCodeOpWild));
3836   pcop->type = PO_WILD;
3837   sprintf(s,"%%%d",id);
3838   pcop->name = Safe_strdup(s);
3839
3840   PCOW(pcop)->id = id;
3841   PCOW(pcop)->pcwb = pcwb;
3842   PCOW(pcop)->subtype = subtype;
3843   PCOW(pcop)->matched = NULL;
3844
3845   return pcop;
3846 }
3847
3848 /*-----------------------------------------------------------------*/
3849 /*-----------------------------------------------------------------*/
3850 pCodeOp *pic16_newpCodeOpBit(char *s, int bit, int inBitSpace)
3851 {
3852   pCodeOp *pcop;
3853
3854   pcop = Safe_calloc(1,sizeof(pCodeOpRegBit) );
3855   pcop->type = PO_GPR_BIT;
3856   if(s)
3857     pcop->name = Safe_strdup(s);
3858   else
3859     pcop->name = NULL;
3860
3861   PCORB(pcop)->bit = bit;
3862   PCORB(pcop)->inBitSpace = inBitSpace;
3863
3864   /* pCodeOpBit is derived from pCodeOpReg. We need to init this too */
3865   PCOR(pcop)->r = NULL;
3866   PCOR(pcop)->rIdx = 0;
3867   return pcop;
3868 }
3869
3870 /*-----------------------------------------------------------------*
3871  * pCodeOp *pic16_newpCodeOpReg(int rIdx) - allocate a new register
3872  *
3873  * If rIdx >=0 then a specific register from the set of registers
3874  * will be selected. If rIdx <0, then a new register will be searched
3875  * for.
3876  *-----------------------------------------------------------------*/
3877
3878 pCodeOp *pic16_newpCodeOpReg(int rIdx)
3879 {
3880   pCodeOp *pcop;
3881
3882   pcop = Safe_calloc(1,sizeof(pCodeOpReg) );
3883
3884   pcop->name = NULL;
3885
3886   if(rIdx >= 0) {
3887     PCOR(pcop)->rIdx = rIdx;
3888     PCOR(pcop)->r = pic16_regWithIdx(rIdx);
3889   } else {
3890     PCOR(pcop)->r = pic16_findFreeReg(REG_GPR);
3891
3892     if(PCOR(pcop)->r)
3893       PCOR(pcop)->rIdx = PCOR(pcop)->r->rIdx;
3894     else {
3895         fprintf(stderr, "%s:%d Could not find a free GPR register\n",
3896                 __FUNCTION__, __LINE__);
3897         exit(-1);
3898     }
3899   }
3900
3901   pcop->type = PCOR(pcop)->r->pc_type;
3902
3903   return pcop;
3904 }
3905
3906 pCodeOp *pic16_newpCodeOpRegFromStr(char *name)
3907 {
3908   pCodeOp *pcop;
3909   regs *r;
3910
3911         pcop = Safe_calloc(1,sizeof(pCodeOpReg) );
3912         PCOR(pcop)->r = r = pic16_allocRegByName(name, 1);
3913         PCOR(pcop)->rIdx = PCOR(pcop)->r->rIdx;
3914         pcop->type = PCOR(pcop)->r->pc_type;
3915         pcop->name = PCOR(pcop)->r->name;
3916
3917 //      if(pic16_pcode_verbose) {
3918 //              fprintf(stderr, "%s:%d %s allocates register %s rIdx:0x%02x\n",
3919 //                      __FILE__, __LINE__, __FUNCTION__, r->name, r->rIdx);
3920 //      }
3921
3922   return pcop;
3923 }
3924
3925 /*-----------------------------------------------------------------*/
3926 /*-----------------------------------------------------------------*/
3927
3928 pCodeOp *pic16_newpCodeOp(char *name, PIC_OPTYPE type)
3929 {
3930   pCodeOp *pcop;
3931
3932   switch(type) {
3933   case PO_BIT:
3934   case PO_GPR_BIT:
3935     pcop = pic16_newpCodeOpBit(name, -1,0);
3936     break;
3937
3938   case PO_LITERAL:
3939     pcop = pic16_newpCodeOpLit(-1);
3940     break;
3941
3942   case PO_LABEL:
3943     pcop = pic16_newpCodeOpLabel(NULL,-1);
3944     break;
3945   case PO_GPR_TEMP:
3946     pcop = pic16_newpCodeOpReg(-1);
3947     break;
3948
3949   case PO_GPR_REGISTER:
3950     if(name)
3951       pcop = pic16_newpCodeOpRegFromStr(name);
3952     else
3953       pcop = pic16_newpCodeOpReg(-1);
3954     break;
3955
3956   default:
3957     pcop = Safe_calloc(1,sizeof(pCodeOp) );
3958     pcop->type = type;
3959     if(name)
3960       pcop->name = Safe_strdup(name);
3961     else
3962       pcop->name = NULL;
3963   }
3964
3965   return pcop;
3966 }
3967
3968
3969 typedef struct DBdata
3970   {
3971     int count;
3972     char buffer[256];
3973   } DBdata;
3974
3975 struct DBdata DBd;
3976 static int DBd_init = -1;
3977
3978 /*-----------------------------------------------------------------*/
3979 /*    Add "DB" directives to a pBlock                              */
3980 /*-----------------------------------------------------------------*/
3981 void pic16_emitDB(pBlock *pb, char c)
3982 {
3983   int l;
3984   if (DBd_init<0) // we need to initialize
3985     {
3986       DBd_init = 0;
3987       DBd.count = 0;
3988       DBd.buffer[0] = '\0';
3989     }
3990
3991   l = strlen(DBd.buffer);
3992
3993   if (DBd.count>0)
3994     {
3995       sprintf(DBd.buffer+l,", 0x%02x", c & 0xff);
3996     }
3997   else
3998     {
3999       sprintf(DBd.buffer,"0x%02x", c & 0xff);
4000     }
4001
4002   DBd.count++;
4003
4004   if (DBd.count>=16)
4005     {
4006        pic16_addpCode2pBlock(pb,pic16_newpCodeAsmDir("DB", "%s", DBd.buffer));
4007        DBd.count = 0;
4008        DBd.buffer[0] = '\0';
4009     }
4010
4011 }
4012
4013 /*-----------------------------------------------------------------*/
4014 /*    Flush pending "DB" data to a pBlock                          */
4015 /*-----------------------------------------------------------------*/
4016 void pic16_flushDB(pBlock *pb)
4017 {
4018   if (DBd.count>0)
4019     {
4020        pic16_addpCode2pBlock(pb,pic16_newpCodeAsmDir("DB", "%s", DBd.buffer));
4021        DBd.count = 0;
4022        DBd.buffer[0] = '\0';
4023     }
4024 }
4025
4026 /*-----------------------------------------------------------------*/
4027 /*-----------------------------------------------------------------*/
4028 void pic16_pCodeConstString(char *name, char *value)
4029 {
4030   pBlock *pb;
4031
4032   //  fprintf(stderr, " %s  %s  %s\n",__FUNCTION__,name,value);
4033
4034   if(!name || !value)
4035     return;
4036
4037   pb = pic16_newpCodeChain(NULL, 'P',pic16_newpCodeCharP("; Starting pCode block"));
4038
4039   pic16_addpBlock(pb);
4040
4041   sprintf(buffer,"; %s = %s",name,value);
4042
4043   pic16_addpCode2pBlock(pb,pic16_newpCodeCharP(buffer));
4044   pic16_addpCode2pBlock(pb,pic16_newpCodeLabel(name,-1));
4045
4046   do {
4047         pic16_emitDB(pb, *value);
4048   }while (*value++);
4049   pic16_flushDB(pb);
4050 }
4051
4052 /*-----------------------------------------------------------------*/
4053 /*-----------------------------------------------------------------*/
4054 #if 0
4055 static void pCodeReadCodeTable(void)
4056 {
4057   pBlock *pb;
4058
4059   fprintf(stderr, " %s\n",__FUNCTION__);
4060
4061   pb = pic16_newpCodeChain(NULL, 'P',pic16_newpCodeCharP("; Starting pCode block"));
4062
4063   pic16_addpBlock(pb);
4064
4065   pic16_addpCode2pBlock(pb,pic16_newpCodeCharP("; ReadCodeTable - built in function"));
4066   pic16_addpCode2pBlock(pb,pic16_newpCodeCharP("; Inputs: temp1,temp2 = code pointer"));
4067   pic16_addpCode2pBlock(pb,pic16_newpCodeCharP("; Outpus: W (from RETLW at temp2:temp1)"));
4068   pic16_addpCode2pBlock(pb,pic16_newpCodeLabel("ReadCodeTable:",-1));
4069
4070   pic16_addpCode2pBlock(pb,pic16_newpCode(POC_MOVFW,pic16_newpCodeOpRegFromStr("temp2")));
4071   pic16_addpCode2pBlock(pb,pic16_newpCode(POC_MOVWF,pic16_newpCodeOpRegFromStr("PCLATH")));
4072   pic16_addpCode2pBlock(pb,pic16_newpCode(POC_MOVFW,pic16_newpCodeOpRegFromStr("temp1")));
4073   pic16_addpCode2pBlock(pb,pic16_newpCode(POC_MOVWF,pic16_newpCodeOpRegFromStr("PCL")));
4074
4075
4076 }
4077 #endif
4078 /*-----------------------------------------------------------------*/
4079 /* pic16_addpCode2pBlock - place the pCode into the pBlock linked list   */
4080 /*-----------------------------------------------------------------*/
4081 void pic16_addpCode2pBlock(pBlock *pb, pCode *pc)
4082 {
4083
4084   if(!pc)
4085     return;
4086
4087   if(!pb->pcHead) {
4088     /* If this is the first pcode to be added to a block that
4089      * was initialized with a NULL pcode, then go ahead and
4090      * make this pcode the head and tail */
4091     pb->pcHead  = pb->pcTail = pc;
4092   } else {
4093     //    if(pb->pcTail)
4094     pb->pcTail->next = pc;
4095
4096     pc->prev = pb->pcTail;
4097     pc->pb = pb;
4098
4099     pb->pcTail = pc;
4100   }
4101 }
4102
4103 /*-----------------------------------------------------------------*/
4104 /* pic16_addpBlock - place a pBlock into the pFile                 */
4105 /*-----------------------------------------------------------------*/
4106 void pic16_addpBlock(pBlock *pb)
4107 {
4108   // fprintf(stderr," Adding pBlock: dbName =%c\n",getpBlock_dbName(pb));
4109
4110   if(!the_pFile) {
4111     /* First time called, we'll pass through here. */
4112     //_ALLOC(the_pFile,sizeof(pFile));
4113     the_pFile = Safe_calloc(1,sizeof(pFile));
4114     the_pFile->pbHead = the_pFile->pbTail = pb;
4115     the_pFile->functions = NULL;
4116     return;
4117   }
4118
4119   the_pFile->pbTail->next = pb;
4120   pb->prev = the_pFile->pbTail;
4121   pb->next = NULL;
4122   the_pFile->pbTail = pb;
4123 }
4124
4125 /*-----------------------------------------------------------------*/
4126 /* removepBlock - remove a pBlock from the pFile                   */
4127 /*-----------------------------------------------------------------*/
4128 static void removepBlock(pBlock *pb)
4129 {
4130   pBlock *pbs;
4131
4132   if(!the_pFile)
4133     return;
4134
4135
4136   //fprintf(stderr," Removing pBlock: dbName =%c\n",getpBlock_dbName(pb));
4137
4138   for(pbs = the_pFile->pbHead; pbs; pbs = pbs->next) {
4139     if(pbs == pb) {
4140
4141       if(pbs == the_pFile->pbHead)
4142         the_pFile->pbHead = pbs->next;
4143
4144       if (pbs == the_pFile->pbTail)
4145         the_pFile->pbTail = pbs->prev;
4146
4147       if(pbs->next)
4148         pbs->next->prev = pbs->prev;
4149
4150       if(pbs->prev)
4151         pbs->prev->next = pbs->next;
4152
4153       return;
4154
4155     }
4156   }
4157
4158   fprintf(stderr, "Warning: call to %s:%s didn't find pBlock\n",__FILE__,__FUNCTION__);
4159
4160 }
4161
4162 /*-----------------------------------------------------------------*/
4163 /* printpCode - write the contents of a pCode to a file            */
4164 /*-----------------------------------------------------------------*/
4165 static void printpCode(FILE *of, pCode *pc)
4166 {
4167
4168   if(!pc || !of)
4169     return;
4170
4171   if(pc->print) {
4172     pc->print(of,pc);
4173     return;
4174   }
4175
4176   fprintf(of,"warning - unable to print pCode\n");
4177 }
4178
4179 /*-----------------------------------------------------------------*/
4180 /* pic16_printpBlock - write the contents of a pBlock to a file    */
4181 /*-----------------------------------------------------------------*/
4182 void pic16_printpBlock(FILE *of, pBlock *pb)
4183 {
4184   pCode *pc;
4185
4186         if(!pb)return;
4187
4188         if(!of)of=stderr;
4189
4190         for(pc = pb->pcHead; pc; pc = pc->next) {
4191                 if(isPCF(pc) && PCF(pc)->fname) {
4192                         fprintf(of, "S_%s_%s\tcode", PCF(pc)->modname, PCF(pc)->fname);
4193                         if(pb->dbName == 'A') {
4194                           absSym *ab;
4195                                 for(ab=setFirstItem(absSymSet); ab; ab=setNextItem(absSymSet)) {
4196                                         if(!strcmp(ab->name, PCF(pc)->fname)) {
4197                                                 fprintf(of, "\t0X%06X\n", ab->address);
4198                                                 break;
4199                                         }
4200                                 }
4201                         }
4202                         fprintf(of, "\n");
4203                 }
4204                 printpCode(of,pc);
4205         }
4206 }
4207
4208 /*-----------------------------------------------------------------*/
4209 /*                                                                 */
4210 /*       pCode processing                                          */
4211 /*                                                                 */
4212 /*                                                                 */
4213 /*                                                                 */
4214 /*-----------------------------------------------------------------*/
4215
4216 void pic16_unlinkpCode(pCode *pc)
4217 {
4218
4219
4220   if(pc) {
4221 #ifdef PCODE_DEBUG
4222     fprintf(stderr,"Unlinking: ");
4223     printpCode(stderr, pc);
4224 #endif
4225     if(pc->prev)
4226       pc->prev->next = pc->next;
4227     if(pc->next)
4228       pc->next->prev = pc->prev;
4229
4230     pc->prev = pc->next = NULL;
4231   }
4232 }
4233
4234 /*-----------------------------------------------------------------*/
4235 /*-----------------------------------------------------------------*/
4236
4237 static void genericDestruct(pCode *pc)
4238 {
4239
4240   pic16_unlinkpCode(pc);
4241
4242   if(isPCI(pc)) {
4243     /* For instructions, tell the register (if there's one used)
4244      * that it's no longer needed */
4245     regs *reg = pic16_getRegFromInstruction(pc);
4246     if(reg)
4247       deleteSetItem (&(reg->reglives.usedpCodes),pc);
4248
4249         if(PCI(pc)->is2MemOp) {
4250                 reg = pic16_getRegFromInstruction2(pc);
4251                 if(reg)
4252                         deleteSetItem(&(reg->reglives.usedpCodes), pc);
4253         }
4254   }
4255
4256   /* Instead of deleting the memory used by this pCode, mark
4257    * the object as bad so that if there's a pointer to this pCode
4258    * dangling around somewhere then (hopefully) when the type is
4259    * checked we'll catch it.
4260    */
4261
4262   pc->type = PC_BAD;
4263
4264   pic16_addpCode2pBlock(pb_dead_pcodes, pc);
4265
4266   //free(pc);
4267
4268 }
4269
4270
4271
4272 /*-----------------------------------------------------------------*/
4273 /*-----------------------------------------------------------------*/
4274 /* modifiers for constant immediate */
4275 const char *immdmod[3]={"LOW", "HIGH", "UPPER"};
4276
4277 char *pic16_get_op(pCodeOp *pcop,char *buffer, size_t size)
4278 {
4279   regs *r;
4280   static char b[50];
4281   char *s;
4282   int use_buffer = 1;    // copy the string to the passed buffer pointer
4283
4284         if(!buffer) {
4285                 buffer = b;
4286                 size = sizeof(b);
4287                 use_buffer = 0;     // Don't bother copying the string to the buffer.
4288         }
4289
4290         if(pcop) {
4291                 switch(pcop->type) {
4292                         case PO_PRODL:
4293                         case PO_PRODH:
4294                         case PO_INDF0:
4295                         case PO_FSR0:
4296                                 if(use_buffer) {
4297                                         SAFE_snprintf(&buffer,&size,"%s",PCOR(pcop)->r->name);
4298                                         return buffer;
4299                                 }
4300                                 return PCOR(pcop)->r->name;
4301                                 break;
4302                         case PO_GPR_TEMP:
4303                                 r = pic16_regWithIdx(PCOR(pcop)->r->rIdx);
4304                                 if(use_buffer) {
4305                                         SAFE_snprintf(&buffer,&size,"%s",r->name);
4306                                         return buffer;
4307                                 }
4308                                 return r->name;
4309
4310                         case PO_IMMEDIATE:
4311                                 s = buffer;
4312                                 if(PCOI(pcop)->offset && PCOI(pcop)->offset<4) {
4313                                         if(PCOI(pcop)->index) {
4314                                                 SAFE_snprintf(&s,&size, "%s(%s + %d)",
4315                                                         immdmod[ PCOI(pcop)->offset ],
4316                                                         pcop->name,
4317                                                         PCOI(pcop)->index);
4318                                         } else {
4319                                                 SAFE_snprintf(&s,&size,"%s(%s)",
4320                                                         immdmod[ PCOI(pcop)->offset ],
4321                                                         pcop->name);
4322                                         }
4323                                 } else {
4324                                         if(PCOI(pcop)->index) {
4325                                                 SAFE_snprintf(&s,&size, "%s(%s + %d)",
4326                                                         immdmod[ 0 ],
4327                                                         pcop->name,
4328                                                         PCOI(pcop)->index);
4329                                         } else {
4330                                                 SAFE_snprintf(&s,&size, "%s(%s)",
4331                                                         immdmod[ 0 ],
4332                                                         pcop->name);
4333                                         }
4334                                 }
4335                                 return buffer;
4336
4337                         case PO_DIR:
4338                                 s = buffer;
4339 //                              size = sizeof(buffer);
4340                                 if( PCOR(pcop)->instance) {
4341                                         SAFE_snprintf(&s,&size,"(%s + %d)",
4342                                                 pcop->name,
4343                                                 PCOR(pcop)->instance );
4344                                 } else {
4345                                         SAFE_snprintf(&s,&size,"%s",pcop->name);
4346                                 }
4347                                 return buffer;
4348
4349                         default:
4350                                 if(pcop->name) {
4351                                         if(use_buffer) {
4352                                                 SAFE_snprintf(&buffer,&size,"%s",pcop->name);
4353                                                 return buffer;
4354                                         }
4355                                 return pcop->name;
4356                                 }
4357
4358                 }
4359         }
4360
4361   return "NO operand1";
4362 }
4363
4364 /*-----------------------------------------------------------------*/
4365 /* pic16_get_op2 - variant to support two memory operand commands  */
4366 /*-----------------------------------------------------------------*/
4367 char *pic16_get_op2(pCodeOp *pcop,char *buffer, size_t size)
4368 {
4369   regs *r;
4370   static char b[50];
4371   char *s;
4372   int use_buffer = 1;    // copy the string to the passed buffer pointer
4373
4374         if(!buffer) {
4375                 buffer = b;
4376                 size = sizeof(b);
4377                 use_buffer = 0;     // Don't bother copying the string to the buffer.
4378         }
4379
4380 #if 0
4381         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",
4382                 __FUNCTION__, __LINE__, PCOR(PCOR2(pcop)->pcop2)->r->name, PCOR2(pcop)->pcop2->type,
4383                 PO_DIR, PO_GPR_TEMP, PO_IMMEDIATE, PO_INDF0, PO_FSR0);
4384 #endif
4385
4386         if(pcop) {
4387                 switch(PCOR2(pcop)->pcop2->type) {
4388                         case PO_PRODL:
4389                         case PO_PRODH:
4390                         case PO_INDF0:
4391                         case PO_FSR0:
4392                                 if(use_buffer) {
4393                                         SAFE_snprintf(&buffer,&size,"%s",PCOR(PCOR2(pcop)->pcop2)->r->name);
4394                                         return buffer;
4395                                 }
4396                                 return PCOR(PCOR2(pcop)->pcop2)->r->name;
4397                                 break;
4398                         case PO_GPR_TEMP:
4399                                 r = pic16_regWithIdx(PCOR(PCOR2(pcop)->pcop2)->r->rIdx);
4400
4401                                 if(use_buffer) {
4402                                         SAFE_snprintf(&buffer,&size,"%s",r->name);
4403                                         return buffer;
4404                                 }
4405                                 return r->name;
4406
4407                         case PO_IMMEDIATE:
4408                                         assert( 0 );
4409                                 break;
4410 #if 0
4411                                 s = buffer;
4412
4413                                 if(PCOI(pcop)->_const) {
4414                                         if( PCOI(pcop)->offset && PCOI(pcop)->offset<4) {
4415                                                 SAFE_snprintf(&s,&size,"(((%s+%d) >> %d)&0xff)",
4416                                                         pcop->name,
4417                                                         PCOI(pcop)->index,
4418                                                         8 * PCOI(pcop)->offset );
4419                                         } else
4420                                                 SAFE_snprintf(&s,&size,"LOW(%s+%d)",pcop->name,PCOI(pcop)->index);
4421                                 } else {
4422                                         if( PCOI(pcop)->index) {
4423                                                 SAFE_snprintf(&s,&size,"(%s + %d)",
4424                                                         pcop->name,
4425                                                         PCOI(pcop)->index );
4426                                         } else {
4427                                                 if(PCOI(pcop)->offset)
4428                                                         SAFE_snprintf(&s,&size,"(%s >> %d)&0xff",pcop->name, 8*PCOI(pcop)->offset);
4429                                                 else
4430                                                         SAFE_snprintf(&s,&size,"%s",pcop->name);
4431                                         }
4432                                 }
4433                                 return buffer;
4434 #endif
4435                         case PO_DIR:
4436                                 s = buffer;
4437                                 if( PCOR(PCOR2(pcop)->pcop2)->instance) {
4438                                         SAFE_snprintf(&s,&size,"(%s + %d)",
4439                                                 PCOR(PCOR2(pcop)->pcop2)->r->name,
4440                                                 PCOR(PCOR2(pcop)->pcop2)->instance );
4441                                 } else {
4442                                         SAFE_snprintf(&s,&size,"%s",PCOR(PCOR2(pcop)->pcop2)->r->name);
4443                                 }
4444                                 return buffer;
4445
4446                         default:
4447                                 if(PCOR(PCOR2(pcop)->pcop2)->r->name) {
4448                                         if(use_buffer) {
4449                                                 SAFE_snprintf(&buffer,&size,"%s",PCOR(PCOR2(pcop)->pcop2)->r->name);
4450                                                 return buffer;
4451                                         }
4452                                         return PCOR(PCOR2(pcop)->pcop2)->r->name;
4453                                 }
4454                 }
4455         }
4456
4457   return "NO operand2";
4458 }
4459
4460 /*-----------------------------------------------------------------*/
4461 /*-----------------------------------------------------------------*/
4462 static char *pic16_get_op_from_instruction( pCodeInstruction *pcc)
4463 {
4464
4465   if(pcc )
4466     return pic16_get_op(pcc->pcop,NULL,0);
4467
4468   /* gcc 3.2:  warning: concatenation of string literals with __FUNCTION__ is deprecated
4469    *   return ("ERROR Null: "__FUNCTION__);
4470    */
4471   return ("ERROR Null: pic16_get_op_from_instruction");
4472
4473 }
4474
4475 /*-----------------------------------------------------------------*/
4476 /*-----------------------------------------------------------------*/
4477 static void pCodeOpPrint(FILE *of, pCodeOp *pcop)
4478 {
4479
4480   fprintf(of,"pcodeopprint- not implemented\n");
4481 }
4482
4483 /*-----------------------------------------------------------------*/
4484 /* pic16_pCode2str - convert a pCode instruction to string               */
4485 /*-----------------------------------------------------------------*/
4486 static char *pic16_pCode2str(char *str, size_t size, pCode *pc)
4487 {
4488   char *s = str;
4489   regs *r;
4490
4491 #if 0
4492         if(isPCI(pc) && (PCI(pc)->pci_magic != PCI_MAGIC)) {
4493                 fprintf(stderr, "%s:%d: pCodeInstruction initialization error in instruction %s, magic is %x (defaut: %x)\n",
4494                         __FILE__, __LINE__, PCI(pc)->mnemonic, PCI(pc)->pci_magic, PCI_MAGIC);
4495                 exit(-1);
4496         }
4497 #endif
4498
4499   switch(pc->type) {
4500
4501   case PC_OPCODE:
4502     SAFE_snprintf(&s,&size, "\t%s\t", PCI(pc)->mnemonic);
4503
4504     if( (PCI(pc)->num_ops >= 1) && (PCI(pc)->pcop)) {
4505
4506         if(PCI(pc)->is2MemOp) {
4507                 SAFE_snprintf(&s,&size, "%s, %s",
4508                 pic16_get_op(PCOP(PCI(pc)->pcop), NULL, 0),
4509                 pic16_get_op2(PCOP(PCI(pc)->pcop), NULL, 0));
4510                 break;
4511         }
4512
4513         if(PCI(pc)->is2LitOp) {
4514                 SAFE_snprintf(&s,&size, "%s", PCOP(PCI(pc)->pcop)->name);
4515                 break;
4516         }
4517
4518       if(PCI(pc)->isBitInst) {
4519         if(PCI(pc)->pcop->type == PO_GPR_BIT) {
4520           if( (((pCodeOpRegBit *)(PCI(pc)->pcop))->inBitSpace) )
4521             SAFE_snprintf(&s,&size,"(%s >> 3), (%s & 7)",
4522                           PCI(pc)->pcop->name ,
4523                           PCI(pc)->pcop->name );
4524           else
4525             SAFE_snprintf(&s,&size,"%s,%d", pic16_get_op_from_instruction(PCI(pc)),
4526                           (((pCodeOpRegBit *)(PCI(pc)->pcop))->bit ));
4527         } else if(PCI(pc)->pcop->type == PO_GPR_BIT) {
4528           SAFE_snprintf(&s,&size,"%s,%d", pic16_get_op_from_instruction(PCI(pc)),PCORB(PCI(pc)->pcop)->bit);
4529         }else
4530           SAFE_snprintf(&s,&size,"%s,0 ; ?bug", pic16_get_op_from_instruction(PCI(pc)));
4531         //PCI(pc)->pcop->t.bit );
4532       } else {
4533
4534         if(PCI(pc)->pcop->type == PO_GPR_BIT) {
4535           if( PCI(pc)->num_ops == 3)
4536             SAFE_snprintf(&s,&size,"(%s >> 3),%c",pic16_get_op_from_instruction(PCI(pc)),((PCI(pc)->isModReg) ? 'F':'W'));
4537           else
4538             SAFE_snprintf(&s,&size,"(1 << (%s & 7))",pic16_get_op_from_instruction(PCI(pc)));
4539
4540         }else {
4541           SAFE_snprintf(&s,&size,"%s", pic16_get_op_from_instruction(PCI(pc)));
4542
4543                 if( PCI(pc)->num_ops == 3 || ((PCI(pc)->num_ops == 2) && (PCI(pc)->isAccess))) {
4544                         if(PCI(pc)->num_ops == 3)
4545                                 SAFE_snprintf(&s,&size,", %c", ( (PCI(pc)->isModReg) ? 'F':'W'));
4546
4547                         r = pic16_getRegFromInstruction(pc);
4548 //                      fprintf(stderr, "%s:%d reg = %p\tname= %s, accessBank= %d\n",
4549 //                                      __FUNCTION__, __LINE__, r, (r)?r->name:"<null>", (r)?r->accessBank:-1);
4550
4551                         if(r && !r->accessBank)SAFE_snprintf(&s,&size,", %s", "B");
4552           }
4553         }
4554       }
4555
4556     }
4557     break;
4558
4559   case PC_COMMENT:
4560     /* assuming that comment ends with a \n */
4561     SAFE_snprintf(&s,&size,";%s", ((pCodeComment *)pc)->comment);
4562     break;
4563
4564   case PC_INLINE:
4565     /* assuming that inline code ends with a \n */
4566     SAFE_snprintf(&s,&size,"%s", ((pCodeComment *)pc)->comment);
4567     break;
4568
4569   case PC_LABEL:
4570     SAFE_snprintf(&s,&size,";label=%s, key=%d\n",PCL(pc)->label,PCL(pc)->key);
4571     break;
4572   case PC_FUNCTION:
4573     SAFE_snprintf(&s,&size,";modname=%s,function=%s: id=%d\n",PCF(pc)->modname,PCF(pc)->fname);
4574     break;
4575   case PC_WILD:
4576     SAFE_snprintf(&s,&size,";\tWild opcode: id=%d\n",PCW(pc)->id);
4577     break;
4578   case PC_FLOW:
4579     SAFE_snprintf(&s,&size,";\t--FLOW change\n");
4580     break;
4581   case PC_CSOURCE:
4582 //    SAFE_snprintf(&s,&size,";#CSRC\t%s %d\t%s\n", PCCS(pc)->file_name, PCCS(pc)->line_number, PCCS(pc)->line);
4583       SAFE_snprintf(&s,&size,"#LINE\t%d; %s\t%s\n", PCCS(pc)->line_number, PCCS(pc)->file_name, PCCS(pc)->line);
4584     break;
4585   case PC_ASMDIR:
4586         if(PCAD(pc)->directive) {
4587                 SAFE_snprintf(&s,&size,"\t%s%s%s\n", PCAD(pc)->directive, PCAD(pc)->arg?"\t":"", PCAD(pc)->arg?PCAD(pc)->arg:"");
4588         } else
4589         if(PCAD(pc)->arg) {
4590                 /* special case to handle inline labels without a tab */
4591                 SAFE_snprintf(&s,&size,"%s\n", PCAD(pc)->arg);
4592         }
4593         break;
4594
4595   case PC_BAD:
4596     SAFE_snprintf(&s,&size,";A bad pCode is being used\n");
4597   }
4598
4599   return str;
4600
4601 }
4602
4603 /*-----------------------------------------------------------------*/
4604 /* genericPrint - the contents of a pCode to a file                */
4605 /*-----------------------------------------------------------------*/
4606 static void genericPrint(FILE *of, pCode *pc)
4607 {
4608
4609   if(!pc || !of)
4610     return;
4611
4612   switch(pc->type) {
4613   case PC_COMMENT:
4614     fprintf(of,";%s\n", ((pCodeComment *)pc)->comment);
4615     break;
4616
4617   case PC_INLINE:
4618     fprintf(of,"%s\n", ((pCodeComment *)pc)->comment);
4619      break;
4620
4621   case PC_OPCODE:
4622     // If the opcode has a label, print that first
4623     {
4624       pBranch *pbl = PCI(pc)->label;
4625       while(pbl && pbl->pc) {
4626         if(pbl->pc->type == PC_LABEL)
4627           pCodePrintLabel(of, pbl->pc);
4628         pbl = pbl->next;
4629       }
4630     }
4631
4632     if(PCI(pc)->cline)
4633       genericPrint(of,PCODE(PCI(pc)->cline));
4634
4635     {
4636       char str[256];
4637
4638       pic16_pCode2str(str, 256, pc);
4639
4640       fprintf(of,"%s",str);
4641       /* Debug */
4642       if(pic16_debug_verbose) {
4643         fprintf(of, "\t;key=%03x",pc->seq);
4644         if(PCI(pc)->pcflow)
4645           fprintf(of,", flow seq=%03x",PCI(pc)->pcflow->pc.seq);
4646       }
4647     }
4648     fprintf(of, "\n");
4649     break;
4650
4651   case PC_WILD:
4652     fprintf(of,";\tWild opcode: id=%d\n",PCW(pc)->id);
4653     if(PCW(pc)->pci.label)
4654       pCodePrintLabel(of, PCW(pc)->pci.label->pc);
4655
4656     if(PCW(pc)->operand) {
4657       fprintf(of,";\toperand  ");
4658       pCodeOpPrint(of,PCW(pc)->operand );
4659     }
4660     break;
4661
4662   case PC_FLOW:
4663     if(pic16_debug_verbose) {
4664       fprintf(of,";<>Start of new flow, seq=0x%x",pc->seq);
4665       if(PCFL(pc)->ancestor)
4666         fprintf(of," ancestor = 0x%x", PCODE(PCFL(pc)->ancestor)->seq);
4667       fprintf(of,"\n");
4668
4669     }
4670     break;
4671
4672   case PC_CSOURCE:
4673 //    fprintf(of,";#CSRC\t%s %d\t\t%s\n", PCCS(pc)->file_name, PCCS(pc)->line_number, PCCS(pc)->line);
4674     fprintf(of,"#LINE\t%d; %s\t%s\n", PCCS(pc)->line_number, PCCS(pc)->file_name, PCCS(pc)->line);
4675
4676     break;
4677
4678   case PC_ASMDIR:
4679         {
4680           pBranch *pbl = PCAD(pc)->pci.label;
4681                 while(pbl && pbl->pc) {
4682                         if(pbl->pc->type == PC_LABEL)
4683                                 pCodePrintLabel(of, pbl->pc);
4684                         pbl = pbl->next;
4685                 }
4686         }
4687         if(PCAD(pc)->directive) {
4688                 fprintf(of, "\t%s%s%s\n", PCAD(pc)->directive, PCAD(pc)->arg?"\t":"", PCAD(pc)->arg?PCAD(pc)->arg:"");
4689         } else
4690         if(PCAD(pc)->arg) {
4691                 /* special case to handle inline labels without tab */
4692                 fprintf(of, "%s\n", PCAD(pc)->arg);
4693         }
4694         break;
4695
4696   case PC_LABEL:
4697   default:
4698     fprintf(of,"unknown pCode type %d\n",pc->type);
4699   }
4700
4701 }
4702
4703 /*-----------------------------------------------------------------*/
4704 /* pCodePrintFunction - prints function begin/end                  */
4705 /*-----------------------------------------------------------------*/
4706
4707 static void pCodePrintFunction(FILE *of, pCode *pc)
4708 {
4709
4710   if(!pc || !of)
4711     return;
4712
4713 #if 0
4714   if( ((pCodeFunction *)pc)->modname)
4715     fprintf(of,"F_%s",((pCodeFunction *)pc)->modname);
4716 #endif
4717
4718   if(PCF(pc)->fname) {
4719     pBranch *exits = PCF(pc)->to;
4720     int i=0;
4721     fprintf(of,"%s", PCF(pc)->fname);
4722
4723 //      if(pic16_pcode_verbose)
4724                 fprintf(of, "\t;Function start");
4725
4726     fprintf(of, "\n");
4727
4728     while(exits) {
4729       i++;
4730       exits = exits->next;
4731     }
4732     //if(i) i--;
4733
4734         if(pic16_pcode_verbose)
4735                 fprintf(of,"; %d exit point%c\n",i, ((i==1) ? ' ':'s'));
4736
4737   } else {
4738         if((PCF(pc)->from &&
4739                 PCF(pc)->from->pc->type == PC_FUNCTION &&
4740                 PCF(PCF(pc)->from->pc)->fname) ) {
4741
4742                 if(pic16_pcode_verbose)
4743                         fprintf(of,"; exit point of %s\n",PCF(PCF(pc)->from->pc)->fname);
4744         } else {
4745                 if(pic16_pcode_verbose)
4746                         fprintf(of,"; exit point [can't find entry point]\n");
4747         }
4748         fprintf(of, "\n");
4749   }
4750 }
4751 /*-----------------------------------------------------------------*/
4752 /* pCodePrintLabel - prints label                                  */
4753 /*-----------------------------------------------------------------*/
4754
4755 static void pCodePrintLabel(FILE *of, pCode *pc)
4756 {
4757
4758   if(!pc || !of)
4759     return;
4760
4761   if(PCL(pc)->label)
4762     fprintf(of,"%s:\n",PCL(pc)->label);
4763   else if (PCL(pc)->key >=0)
4764     fprintf(of,"_%05d_DS_:\n",PCL(pc)->key);
4765   else
4766     fprintf(of,";wild card label: id=%d\n",-PCL(pc)->key);
4767
4768 }
4769 /*-----------------------------------------------------------------*/
4770 /* unlinkpCodeFromBranch - Search for a label in a pBranch and     */
4771 /*                         remove it if it is found.               */
4772 /*-----------------------------------------------------------------*/
4773 static void unlinkpCodeFromBranch(pCode *pcl , pCode *pc)
4774 {
4775   pBranch *b, *bprev;
4776
4777
4778   bprev = NULL;
4779
4780   if(pcl->type == PC_OPCODE)
4781     b = PCI(pcl)->label;
4782   else {
4783     fprintf(stderr, "LINE %d. can't unlink from non opcode\n",__LINE__);
4784     exit(1);
4785
4786   }
4787
4788   //fprintf (stderr, "%s \n",__FUNCTION__);
4789   //pcl->print(stderr,pcl);
4790   //pc->print(stderr,pc);
4791   while(b) {
4792     if(b->pc == pc) {
4793       //fprintf (stderr, "found label\n");
4794       //pc->print(stderr, pc);
4795
4796       /* Found a label */
4797       if(bprev) {
4798         bprev->next = b->next;  /* Not first pCode in chain */
4799         free(b);
4800       } else {
4801         pc->destruct(pc);
4802         PCI(pcl)->label = b->next;   /* First pCode in chain */
4803         free(b);
4804       }
4805       return;  /* A label can't occur more than once */
4806     }
4807     bprev = b;
4808     b = b->next;
4809   }
4810
4811 }
4812
4813 /*-----------------------------------------------------------------*/
4814 /*-----------------------------------------------------------------*/
4815 pBranch * pic16_pBranchAppend(pBranch *h, pBranch *n)
4816 {
4817   pBranch *b;
4818
4819   if(!h)
4820     return n;
4821
4822   if(h == n)
4823     return n;
4824
4825   b = h;
4826   while(b->next)
4827     b = b->next;
4828
4829   b->next = n;
4830
4831   return h;
4832
4833 }
4834 /*-----------------------------------------------------------------*/
4835 /* pBranchLink - given two pcodes, this function will link them    */
4836 /*               together through their pBranches                  */
4837 /*-----------------------------------------------------------------*/
4838 static void pBranchLink(pCodeFunction *f, pCodeFunction *t)
4839 {
4840   pBranch *b;
4841
4842   // Declare a new branch object for the 'from' pCode.
4843
4844   //_ALLOC(b,sizeof(pBranch));
4845   b = Safe_calloc(1,sizeof(pBranch));
4846   b->pc = PCODE(t);             // The link to the 'to' pCode.
4847   b->next = NULL;
4848
4849   f->to = pic16_pBranchAppend(f->to,b);
4850
4851   // Now do the same for the 'to' pCode.
4852
4853   //_ALLOC(b,sizeof(pBranch));
4854   b = Safe_calloc(1,sizeof(pBranch));
4855   b->pc = PCODE(f);
4856   b->next = NULL;
4857
4858   t->from = pic16_pBranchAppend(t->from,b);
4859
4860 }
4861
4862 #if 0
4863 /*-----------------------------------------------------------------*/
4864 /* pBranchFind - find the pBranch in a pBranch chain that contains */
4865 /*               a pCode                                           */
4866 /*-----------------------------------------------------------------*/
4867 static pBranch *pBranchFind(pBranch *pb,pCode *pc)
4868 {
4869   while(pb) {
4870
4871     if(pb->pc == pc)
4872       return pb;
4873
4874     pb = pb->next;
4875   }
4876
4877   return NULL;
4878 }
4879
4880 /*-----------------------------------------------------------------*/
4881 /* pCodeUnlink - Unlink the given pCode from its pCode chain.      */
4882 /*-----------------------------------------------------------------*/
4883 static void pCodeUnlink(pCode *pc)
4884 {
4885   pBranch *pb1,*pb2;
4886   pCode *pc1;
4887
4888   if(!pc->prev || !pc->next) {
4889     fprintf(stderr,"unlinking bad pCode in %s:%d\n",__FILE__,__LINE__);
4890     exit(1);
4891   }
4892
4893   /* first remove the pCode from the chain */
4894   pc->prev->next = pc->next;
4895   pc->next->prev = pc->prev;
4896
4897   /* Now for the hard part... */
4898
4899   /* Remove the branches */
4900
4901   pb1 = pc->from;
4902   while(pb1) {
4903     pc1 = pb1->pc;    /* Get the pCode that branches to the
4904                        * one we're unlinking */
4905
4906     /* search for the link back to this pCode (the one we're
4907      * unlinking) */
4908     if(pb2 = pBranchFind(pc1->to,pc)) {
4909       pb2->pc = pc->to->pc;  // make the replacement
4910
4911       /* if the pCode we're unlinking contains multiple 'to'
4912        * branches (e.g. this a skip instruction) then we need
4913        * to copy these extra branches to the chain. */
4914       if(pc->to->next)
4915         pic16_pBranchAppend(pb2, pc->to->next);
4916     }
4917
4918     pb1 = pb1->next;
4919   }
4920
4921
4922 }
4923 #endif
4924 /*-----------------------------------------------------------------*/
4925 /*-----------------------------------------------------------------*/
4926 #if 0
4927 static void genericAnalyze(pCode *pc)
4928 {
4929   switch(pc->type) {
4930   case PC_WILD:
4931   case PC_COMMENT:
4932     return;
4933   case PC_LABEL:
4934   case PC_FUNCTION:
4935   case PC_OPCODE:
4936     {
4937       // Go through the pCodes that are in pCode chain and link
4938       // them together through the pBranches. Note, the pCodes
4939       // are linked together as a contiguous stream like the
4940       // assembly source code lines. The linking here mimics this
4941       // except that comments are not linked in.
4942       //
4943       pCode *npc = pc->next;
4944       while(npc) {
4945         if(npc->type == PC_OPCODE || npc->type == PC_LABEL) {
4946           pBranchLink(pc,npc);
4947           return;
4948         } else
4949           npc = npc->next;
4950       }
4951       /* reached the end of the pcode chain without finding
4952        * an instruction we could link to. */
4953     }
4954     break;
4955   case PC_FLOW:
4956     fprintf(stderr,"analyze PC_FLOW\n");
4957
4958     return;
4959   case PC_BAD:
4960     fprintf(stderr,,";A bad pCode is being used\n");
4961
4962   }
4963 }
4964 #endif
4965
4966 /*-----------------------------------------------------------------*/
4967 /*-----------------------------------------------------------------*/
4968 static int compareLabel(pCode *pc, pCodeOpLabel *pcop_label)
4969 {
4970   pBranch *pbr;
4971
4972   if(pc->type == PC_LABEL) {
4973     if( ((pCodeLabel *)pc)->key ==  pcop_label->key)
4974       return TRUE;
4975   }
4976   if((pc->type == PC_OPCODE)
4977         || (pc->type == PC_ASMDIR)
4978         ) {
4979     pbr = PCI(pc)->label;
4980     while(pbr) {
4981       if(pbr->pc->type == PC_LABEL) {
4982         if( ((pCodeLabel *)(pbr->pc))->key ==  pcop_label->key)
4983           return TRUE;
4984       }
4985       pbr = pbr->next;
4986     }
4987   }
4988
4989   return FALSE;
4990 }
4991
4992 /*-----------------------------------------------------------------*/
4993 /*-----------------------------------------------------------------*/
4994 static int checkLabel(pCode *pc)
4995 {
4996   pBranch *pbr;
4997
4998   if(pc && isPCI(pc)) {
4999     pbr = PCI(pc)->label;
5000     while(pbr) {
5001       if(isPCL(pbr->pc) && (PCL(pbr->pc)->key >= 0))
5002         return TRUE;
5003
5004       pbr = pbr->next;
5005     }
5006   }
5007
5008   return FALSE;
5009 }
5010
5011 /*-----------------------------------------------------------------*/
5012 /* findLabelinpBlock - Search the pCode for a particular label     */
5013 /*-----------------------------------------------------------------*/
5014 static pCode * findLabelinpBlock(pBlock *pb,pCodeOpLabel *pcop_label)
5015 {
5016   pCode  *pc;
5017
5018   if(!pb)
5019     return NULL;
5020
5021   for(pc = pb->pcHead; pc; pc = pc->next)
5022     if(compareLabel(pc,pcop_label))
5023       return pc;
5024
5025   return NULL;
5026 }
5027 #if 0
5028 /*-----------------------------------------------------------------*/
5029 /* findLabel - Search the pCode for a particular label             */
5030 /*-----------------------------------------------------------------*/
5031 static pCode * findLabel(pCodeOpLabel *pcop_label)
5032 {
5033   pBlock *pb;
5034   pCode  *pc;
5035
5036   if(!the_pFile)
5037     return NULL;
5038
5039   for(pb = the_pFile->pbHead; pb; pb = pb->next) {
5040     if( (pc = findLabelinpBlock(pb,pcop_label)) != NULL)
5041       return pc;
5042   }
5043
5044   fprintf(stderr,"Couldn't find label %s", pcop_label->pcop.name);
5045   return NULL;
5046 }
5047 #endif
5048 /*-----------------------------------------------------------------*/
5049 /* pic16_findNextpCode - given a pCode, find the next of type 'pct'      */
5050 /*                 in the linked list                              */
5051 /*-----------------------------------------------------------------*/
5052 pCode * pic16_findNextpCode(pCode *pc, PC_TYPE pct)
5053 {
5054
5055   while(pc) {
5056     if(pc->type == pct)
5057       return pc;
5058
5059     pc = pc->next;
5060   }
5061
5062   return NULL;
5063 }
5064
5065 /*-----------------------------------------------------------------*/
5066 /* findPrevpCode - given a pCode, find the previous of type 'pct'  */
5067 /*                 in the linked list                              */
5068 /*-----------------------------------------------------------------*/
5069 static pCode * findPrevpCode(pCode *pc, PC_TYPE pct)
5070 {
5071
5072   while(pc) {
5073     if(pc->type == pct)
5074       return pc;
5075
5076     pc = pc->prev;
5077   }
5078
5079   return NULL;
5080 }
5081
5082
5083 //#define PCODE_DEBUG
5084 /*-----------------------------------------------------------------*/
5085 /* pic16_findNextInstruction - given a pCode, find the next instruction  */
5086 /*                       in the linked list                        */
5087 /*-----------------------------------------------------------------*/
5088 pCode * pic16_findNextInstruction(pCode *pci)
5089 {
5090   pCode *pc = pci;
5091
5092   while(pc) {
5093     if((pc->type == PC_OPCODE)
5094         || (pc->type == PC_WILD)
5095         || (pc->type == PC_ASMDIR)
5096         )
5097       return pc;
5098
5099 #ifdef PCODE_DEBUG
5100     fprintf(stderr,"pic16_findNextInstruction:  ");
5101     printpCode(stderr, pc);
5102 #endif
5103     pc = pc->next;
5104   }
5105
5106   //fprintf(stderr,"Couldn't find instruction\n");
5107   return NULL;
5108 }
5109
5110 /*-----------------------------------------------------------------*/
5111 /* pic16_findNextInstruction - given a pCode, find the next instruction  */
5112 /*                       in the linked list                        */
5113 /*-----------------------------------------------------------------*/
5114 pCode * pic16_findPrevInstruction(pCode *pci)
5115 {
5116   pCode *pc = pci;
5117
5118   while(pc) {
5119     if((pc->type == PC_OPCODE)
5120         || (pc->type == PC_WILD)
5121         || (pc->type == PC_ASMDIR)
5122         )
5123       return pc;
5124
5125
5126 #ifdef PCODE_DEBUG
5127     fprintf(stderr,"pic16_findPrevInstruction:  ");
5128     printpCode(stderr, pc);
5129 #endif
5130     pc = pc->next;
5131   }
5132
5133   //fprintf(stderr,"Couldn't find instruction\n");
5134   return NULL;
5135 }
5136
5137 #undef PCODE_DEBUG
5138
5139 #if 0
5140 /*-----------------------------------------------------------------*/
5141 /* findFunctionEnd - given a pCode find the end of the function    */
5142 /*                   that contains it                              */
5143 /*-----------------------------------------------------------------*/
5144 static pCode * findFunctionEnd(pCode *pc)
5145 {
5146
5147   while(pc) {
5148     if(pc->type == PC_FUNCTION &&  !(PCF(pc)->fname))
5149       return pc;
5150
5151     pc = pc->next;
5152   }
5153
5154   fprintf(stderr,"Couldn't find function end\n");
5155   return NULL;
5156 }
5157 #endif
5158 #if 0
5159 /*-----------------------------------------------------------------*/
5160 /* AnalyzeLabel - if the pCode is a label, then merge it with the  */
5161 /*                instruction with which it is associated.         */
5162 /*-----------------------------------------------------------------*/
5163 static void AnalyzeLabel(pCode *pc)
5164 {
5165
5166   pCodeUnlink(pc);
5167
5168 }
5169 #endif
5170
5171 #if 0
5172 static void AnalyzeGOTO(pCode *pc)
5173 {
5174
5175   pBranchLink(pc,findLabel( (pCodeOpLabel *) (PCI(pc)->pcop) ));
5176
5177 }
5178
5179 static void AnalyzeSKIP(pCode *pc)
5180 {
5181
5182   pBranchLink(pc,pic16_findNextInstruction(pc->next));
5183   pBranchLink(pc,pic16_findNextInstruction(pc->next->next));
5184
5185 }
5186
5187 static void AnalyzeRETURN(pCode *pc)
5188 {
5189
5190   //  branch_link(pc,findFunctionEnd(pc->next));
5191
5192 }
5193
5194 #endif
5195
5196 /*-----------------------------------------------------------------*/
5197 /*-----------------------------------------------------------------*/
5198 regs * pic16_getRegFromInstruction(pCode *pc)
5199 {
5200
5201   if(!pc                   ||
5202      !isPCI(pc)            ||
5203      !PCI(pc)->pcop        ||
5204      PCI(pc)->num_ops == 0 ||
5205      (PCI(pc)->num_ops == 1 && PCI(pc)->isFastCall))
5206     return NULL;
5207
5208 #if 0
5209   fprintf(stderr, "pic16_getRegFromInstruction - reg type %s (%d)\n",
5210         dumpPicOptype( PCI(pc)->pcop->type), PCI(pc)->pcop->type);
5211 #endif
5212
5213   switch(PCI(pc)->pcop->type) {
5214   case PO_PRODL:
5215   case PO_PRODH:
5216
5217   case PO_INDF0:
5218   case PO_FSR0:
5219     return PCOR(PCI(pc)->pcop)->r;
5220
5221     //    return typeRegWithIdx (PCOR(PCI(pc)->pcop)->rIdx, REG_SFR, 0);
5222
5223   case PO_BIT:
5224   case PO_GPR_TEMP:
5225 //      fprintf(stderr, "pic16_getRegFromInstruction - bit or temp\n");
5226     return PCOR(PCI(pc)->pcop)->r;
5227
5228   case PO_IMMEDIATE:
5229     if(PCOI(PCI(pc)->pcop)->r)
5230       return (PCOI(PCI(pc)->pcop)->r);
5231
5232     //fprintf(stderr, "pic16_getRegFromInstruction - immediate\n");
5233     return pic16_dirregWithName(PCI(pc)->pcop->name);
5234     //return NULL; // PCOR(PCI(pc)->pcop)->r;
5235
5236   case PO_GPR_BIT:
5237     return PCOR(PCI(pc)->pcop)->r;
5238
5239   case PO_DIR:
5240 //      fprintf(stderr, "pic16_getRegFromInstruction - dir\n");
5241     return PCOR(PCI(pc)->pcop)->r;
5242   case PO_LITERAL:
5243     //fprintf(stderr, "pic16_getRegFromInstruction - literal\n");
5244     break;
5245
5246   default:
5247 //      fprintf(stderr, "pic16_getRegFromInstruction - unknown reg type %d\n",PCI(pc)->pcop->type);
5248 //      genericPrint(stderr, pc);
5249 //      assert( 0 );
5250     break;
5251   }
5252
5253   return NULL;
5254 }
5255
5256 /*-------------------------------------------------------------------------------*/
5257 /* pic16_getRegFromInstruction2 - variant to support two memory operand commands */
5258 /*-------------------------------------------------------------------------------*/
5259 regs * pic16_getRegFromInstruction2(pCode *pc)
5260 {
5261
5262   if(!pc                   ||
5263      !isPCI(pc)            ||
5264      !PCI(pc)->pcop        ||
5265      PCI(pc)->num_ops == 0 ||
5266      (PCI(pc)->num_ops == 1))           // accept only 2 operand commands
5267     return NULL;
5268
5269
5270 #if 0
5271   fprintf(stderr, "pic16_getRegFromInstruction2 - reg type %s (%d)\n",
5272         dumpPicOptype( PCI(pc)->pcop->type), PCI(pc)->pcop->type);
5273 #endif
5274
5275 /*
5276  * operands supported in MOVFF:
5277  *  PO_INF0/PO_FSR0
5278  *  PO_GPR_TEMP
5279  *  PO_IMMEDIATE
5280  *  PO_DIR
5281  *
5282  */
5283   switch(PCI(pc)->pcop->type) {
5284   case PO_PRODL:
5285   case PO_PRODH:
5286
5287   case PO_INDF0:
5288   case PO_FSR0:
5289     return PCOR(PCOR2(PCI(pc)->pcop)->pcop2)->r;
5290
5291     //    return typeRegWithIdx (PCOR(PCI(pc)->pcop)->rIdx, REG_SFR, 0);
5292
5293 //  case PO_BIT:
5294   case PO_GPR_TEMP:
5295     //fprintf(stderr, "pic16_getRegFromInstruction2 - bit or temp\n");
5296     return PCOR(PCOR2(PCI(pc)->pcop)->pcop2)->r;
5297
5298   case PO_IMMEDIATE:
5299 //      break;
5300 #if 1
5301 //    if(PCOI(PCI(pc)->pcop)->r)
5302 //      return (PCOI(PCOR2(PCI(pc)->pcop)->pcop2)->r);
5303
5304     //fprintf(stderr, "pic16_getRegFromInstruction2 - immediate\n");
5305     return pic16_dirregWithName(PCOR(PCOR2(PCI(pc)->pcop)->pcop2)->r->name);
5306     //return NULL; // PCOR(PCI(pc)->pcop)->r;
5307 #endif
5308
5309   case PO_GPR_BIT:
5310         break;
5311 //    return PCOR2(PCI(pc)->pcop)->r;
5312
5313   case PO_DIR:
5314     //fprintf(stderr, "pic16_getRegFromInstruction2 - dir\n");
5315     return PCOR(PCOR2(PCI(pc)->pcop)->pcop2)->r;
5316
5317   case PO_LITERAL:
5318         break;
5319     //fprintf(stderr, "pic16_getRegFromInstruction2 - literal\n");
5320
5321   default:
5322     //fprintf(stderr, "pic16_getRegFromInstruction2 - unknown reg type %d\n",PCI(pc)->pcop->type);
5323     //genericPrint(stderr, pc);
5324     break;
5325   }
5326
5327   return NULL;
5328
5329 }
5330
5331 /*-----------------------------------------------------------------*/
5332 /*-----------------------------------------------------------------*/
5333
5334 static void AnalyzepBlock(pBlock *pb)
5335 {
5336   pCode *pc;
5337
5338   if(!pb)
5339     return;
5340
5341   /* Find all of the registers used in this pBlock
5342    * by looking at each instruction and examining it's
5343    * operands
5344    */
5345   for(pc = pb->pcHead; pc; pc = pc->next) {
5346
5347     /* Is this an instruction with operands? */
5348     if(pc->type == PC_OPCODE && PCI(pc)->pcop) {
5349
5350       if(PCI(pc)->pcop->type == PO_GPR_TEMP) {
5351
5352         /* Loop through all of the registers declared so far in
5353            this block and see if we find this one there */
5354
5355         regs *r = setFirstItem(pb->tregisters);
5356
5357         while(r) {
5358           if(r->rIdx == PCOR(PCI(pc)->pcop)->r->rIdx) {
5359             PCOR(PCI(pc)->pcop)->r = r;
5360             break;
5361           }
5362           r = setNextItem(pb->tregisters);
5363         }
5364
5365         if(!r) {
5366           /* register wasn't found */
5367           //r = Safe_calloc(1, sizeof(regs));
5368           //memcpy(r,PCOR(PCI(pc)->pcop)->r, sizeof(regs));
5369           //addSet(&pb->tregisters, r);
5370           addSet(&pb->tregisters, PCOR(PCI(pc)->pcop)->r);
5371           //PCOR(PCI(pc)->pcop)->r = r;
5372           //fprintf(stderr,"added register to pblock: reg %d\n",r->rIdx);
5373         }/* else
5374           fprintf(stderr,"found register in pblock: reg %d\n",r->rIdx);
5375          */
5376       }
5377       if(PCI(pc)->pcop->type == PO_GPR_REGISTER) {
5378         if(PCOR(PCI(pc)->pcop)->r) {
5379           pic16_allocWithIdx (PCOR(PCI(pc)->pcop)->r->rIdx);
5380           DFPRINTF((stderr,"found register in pblock: reg 0x%x\n",PCOR(PCI(pc)->pcop)->r->rIdx));
5381         } else {
5382           if(PCI(pc)->pcop->name)
5383             fprintf(stderr,"ERROR: %s is a NULL register\n",PCI(pc)->pcop->name );
5384           else
5385             fprintf(stderr,"ERROR: NULL register\n");
5386         }
5387       }
5388     }
5389
5390
5391   }
5392 }
5393
5394 /*-----------------------------------------------------------------*/
5395 /* */
5396 /*-----------------------------------------------------------------*/
5397 #define PCI_HAS_LABEL(x) ((x) && (PCI(x)->label != NULL))
5398
5399 static void InsertpFlow(pCode *pc, pCode **pflow)
5400 {
5401   if(*pflow)
5402     PCFL(*pflow)->end = pc;
5403
5404   if(!pc || !pc->next)
5405     return;
5406
5407   *pflow = pic16_newpCodeFlow();
5408   pic16_pCodeInsertAfter(pc, *pflow);
5409 }
5410
5411 /*-----------------------------------------------------------------*/
5412 /* pic16_BuildFlow(pBlock *pb) - examine the code in a pBlock and build  */
5413 /*                         the flow blocks.                        */
5414 /*
5415  * pic16_BuildFlow inserts pCodeFlow objects into the pCode chain at each
5416  * point the instruction flow changes.
5417  */
5418 /*-----------------------------------------------------------------*/
5419 void pic16_BuildFlow(pBlock *pb)
5420 {
5421   pCode *pc;
5422   pCode *last_pci=NULL;
5423   pCode *pflow=NULL;
5424   int seq = 0;
5425
5426   if(!pb)
5427     return;
5428
5429   //fprintf (stderr,"build flow start seq %d  ",GpcFlowSeq);
5430   /* Insert a pCodeFlow object at the beginning of a pBlock */
5431
5432   InsertpFlow(pb->pcHead, &pflow);
5433
5434   //pflow = pic16_newpCodeFlow();    /* Create a new Flow object */
5435   //pflow->next = pb->pcHead;  /* Make the current head the next object */
5436   //pb->pcHead->prev = pflow;  /* let the current head point back to the flow object */
5437   //pb->pcHead = pflow;        /* Make the Flow object the head */
5438   //pflow->pb = pb;
5439
5440   for( pc = pic16_findNextInstruction(pb->pcHead);
5441        pc != NULL;
5442        pc=pic16_findNextInstruction(pc)) {
5443
5444     pc->seq = seq++;
5445     PCI(pc)->pcflow = PCFL(pflow);
5446
5447     //fprintf(stderr," build: ");
5448     //pflow->print(stderr,pflow);
5449
5450     if( PCI(pc)->isSkip) {
5451
5452       /* The two instructions immediately following this one
5453        * mark the beginning of a new flow segment */
5454
5455       while(pc && PCI(pc)->isSkip) {
5456
5457         PCI(pc)->pcflow = PCFL(pflow);
5458         pc->seq = seq-1;
5459         seq = 1;
5460
5461         InsertpFlow(pc, &pflow);
5462         pc=pic16_findNextInstruction(pc->next);
5463       }
5464
5465       seq = 0;
5466
5467       if(!pc)
5468         break;
5469
5470       PCI(pc)->pcflow = PCFL(pflow);
5471       pc->seq = 0;
5472       InsertpFlow(pc, &pflow);
5473
5474     } else if ( PCI(pc)->isBranch && !checkLabel(pic16_findNextInstruction(pc->next)))  {
5475
5476       InsertpFlow(pc, &pflow);
5477       seq = 0;
5478
5479     } else if (checkLabel(pc)) {
5480
5481       /* This instruction marks the beginning of a
5482        * new flow segment */
5483
5484       pc->seq = 0;
5485       seq = 1;
5486
5487       /* If the previous pCode is not a flow object, then
5488        * insert a new flow object. (This check prevents
5489        * two consecutive flow objects from being insert in
5490        * the case where a skip instruction preceeds an
5491        * instruction containing a label.) */
5492
5493       if(last_pci && (PCI(last_pci)->pcflow == PCFL(pflow)))
5494         InsertpFlow(pic16_findPrevInstruction(pc->prev), &pflow);
5495
5496       PCI(pc)->pcflow = PCFL(pflow);
5497
5498     }
5499     last_pci = pc;
5500     pc = pc->next;
5501   }
5502
5503   //fprintf (stderr,",end seq %d",GpcFlowSeq);
5504   if(pflow)
5505     PCFL(pflow)->end = pb->pcTail;
5506 }
5507
5508 /*-------------------------------------------------------------------*/
5509 /* unBuildFlow(pBlock *pb) - examine the code in a pBlock and build  */
5510 /*                           the flow blocks.                        */
5511 /*
5512  * unBuildFlow removes pCodeFlow objects from a pCode chain
5513  */
5514 /*-----------------------------------------------------------------*/
5515 static void unBuildFlow(pBlock *pb)
5516 {
5517   pCode *pc,*pcnext;
5518
5519   if(!pb)
5520     return;
5521
5522   pc = pb->pcHead;
5523
5524   while(pc) {
5525     pcnext = pc->next;
5526
5527     if(isPCI(pc)) {
5528
5529       pc->seq = 0;
5530       if(PCI(pc)->pcflow) {
5531         //free(PCI(pc)->pcflow);
5532         PCI(pc)->pcflow = NULL;
5533       }
5534
5535     } else if(isPCFL(pc) )
5536       pc->destruct(pc);
5537
5538     pc = pcnext;
5539   }
5540
5541
5542 }
5543 #if 0
5544 /*-----------------------------------------------------------------*/
5545 /*-----------------------------------------------------------------*/
5546 static void dumpCond(int cond)
5547 {
5548
5549   static char *pcc_str[] = {
5550     //"PCC_NONE",
5551     "PCC_REGISTER",
5552     "PCC_REGISTER2",
5553     "PCC_C",
5554     "PCC_Z",
5555     "PCC_DC",
5556     "PCC_OV",
5557     "PCC_N",
5558     "PCC_W",
5559     "PCC_EXAMINE_PCOP",
5560     "PCC_LITERAL",
5561     "PCC_REL_ADDR"
5562   };
5563
5564   int ncond = sizeof(pcc_str) / sizeof(char *);
5565   int i,j;
5566
5567   fprintf(stderr, "0x%04X\n",cond);
5568
5569   for(i=0,j=1; i<ncond; i++, j<<=1)
5570     if(cond & j)
5571       fprintf(stderr, "  %s\n",pcc_str[i]);
5572
5573 }
5574 #endif
5575
5576 #if 0
5577 /*-----------------------------------------------------------------*/
5578 /*-----------------------------------------------------------------*/
5579 static void FlowStats(pCodeFlow *pcflow)
5580 {
5581
5582   pCode *pc;
5583
5584   if(!isPCFL(pcflow))
5585     return;
5586
5587   fprintf(stderr, " FlowStats - flow block (seq=%d)\n", pcflow->pc.seq);
5588
5589   pc = pic16_findNextpCode(PCODE(pcflow), PC_OPCODE);
5590
5591   if(!pc) {
5592     fprintf(stderr, " FlowStats - empty flow (seq=%d)\n", pcflow->pc.seq);
5593     return;
5594   }
5595
5596
5597   fprintf(stderr, "  FlowStats inCond: ");
5598   dumpCond(pcflow->inCond);
5599   fprintf(stderr, "  FlowStats outCond: ");
5600   dumpCond(pcflow->outCond);
5601
5602 }
5603 #endif
5604 /*-----------------------------------------------------------------*
5605  * int isBankInstruction(pCode *pc) - examine the pCode *pc to determine
5606  *    if it affects the banking bits.
5607  *
5608  * return: -1 == Banking bits are unaffected by this pCode.
5609  *
5610  * return: > 0 == Banking bits are affected.
5611  *
5612  *  If the banking bits are affected, then the returned value describes
5613  * which bits are affected and how they're affected. The lower half
5614  * of the integer maps to the bits that are affected, the upper half
5615  * to whether they're set or cleared.
5616  *
5617  *-----------------------------------------------------------------*/
5618
5619 static int isBankInstruction(pCode *pc)
5620 {
5621   regs *reg;
5622   int bank = -1;
5623
5624   if(!isPCI(pc))
5625     return -1;
5626
5627   if( PCI(pc)->op == POC_MOVLB ||
5628       (( (reg = pic16_getRegFromInstruction(pc)) != NULL) && isBSR_REG(reg))) {
5629     bank = PCOL(pc)->lit;
5630   }
5631
5632   return bank;
5633 }
5634
5635
5636 /*-----------------------------------------------------------------*/
5637 /*-----------------------------------------------------------------*/
5638 static void FillFlow(pCodeFlow *pcflow)
5639 {
5640
5641   pCode *pc;
5642   int cur_bank;
5643
5644   if(!isPCFL(pcflow))
5645     return;
5646
5647   //  fprintf(stderr, " FillFlow - flow block (seq=%d)\n", pcflow->pc.seq);
5648
5649   pc = pic16_findNextpCode(PCODE(pcflow), PC_OPCODE);
5650
5651   if(!pc) {
5652     //fprintf(stderr, " FillFlow - empty flow (seq=%d)\n", pcflow->pc.seq);
5653     return;
5654   }
5655
5656   cur_bank = -1;
5657
5658   do {
5659     isBankInstruction(pc);
5660     pc = pc->next;
5661   } while (pc && (pc != pcflow->end) && !isPCFL(pc));
5662
5663 /*
5664   if(!pc ) {
5665     fprintf(stderr, "  FillFlow - Bad end of flow\n");
5666   } else {
5667     fprintf(stderr, "  FillFlow - Ending flow with\n  ");
5668     pc->print(stderr,pc);
5669   }
5670
5671   fprintf(stderr, "  FillFlow inCond: ");
5672   dumpCond(pcflow->inCond);
5673   fprintf(stderr, "  FillFlow outCond: ");
5674   dumpCond(pcflow->outCond);
5675 */
5676 }
5677
5678 /*-----------------------------------------------------------------*/
5679 /*-----------------------------------------------------------------*/
5680 static void LinkFlow_pCode(pCodeInstruction *from, pCodeInstruction *to)
5681 {
5682   pCodeFlowLink *fromLink, *toLink;
5683
5684   if(!from || !to || !to->pcflow || !from->pcflow)
5685     return;
5686
5687   fromLink = pic16_newpCodeFlowLink(from->pcflow);
5688   toLink   = pic16_newpCodeFlowLink(to->pcflow);
5689
5690   addSetIfnotP(&(from->pcflow->to), toLink);   //to->pcflow);
5691   addSetIfnotP(&(to->pcflow->from), fromLink); //from->pcflow);
5692
5693 }
5694
5695 /*-----------------------------------------------------------------*
5696  * void LinkFlow(pBlock *pb)
5697  *
5698  * In pic16_BuildFlow, the PIC code has been partitioned into contiguous
5699  * non-branching segments. In LinkFlow, we determine the execution
5700  * order of these segments. For example, if one of the segments ends
5701  * with a skip, then we know that there are two possible flow segments
5702  * to which control may be passed.
5703  *-----------------------------------------------------------------*/
5704 static void LinkFlow(pBlock *pb)
5705 {
5706   pCode *pc=NULL;
5707   pCode *pcflow;
5708   pCode *pct;
5709
5710   //fprintf(stderr,"linkflow \n");
5711
5712   for( pcflow = pic16_findNextpCode(pb->pcHead, PC_FLOW);
5713        pcflow != NULL;
5714        pcflow = pic16_findNextpCode(pcflow->next, PC_FLOW) ) {
5715
5716     if(!isPCFL(pcflow))
5717       fprintf(stderr, "LinkFlow - pcflow is not a flow object ");
5718
5719     //fprintf(stderr," link: ");
5720     //pcflow->print(stderr,pcflow);
5721
5722     //FillFlow(PCFL(pcflow));
5723
5724     pc = PCFL(pcflow)->end;
5725
5726     //fprintf(stderr, "LinkFlow - flow block (seq=%d) ", pcflow->seq);
5727     if(isPCI_SKIP(pc)) {
5728       //fprintf(stderr, "ends with skip\n");
5729       //pc->print(stderr,pc);
5730       pct=pic16_findNextInstruction(pc->next);
5731       LinkFlow_pCode(PCI(pc),PCI(pct));
5732       pct=pic16_findNextInstruction(pct->next);
5733       LinkFlow_pCode(PCI(pc),PCI(pct));
5734       continue;
5735     }
5736
5737     if(isPCI_BRANCH(pc)) {
5738       pCodeOpLabel *pcol = PCOLAB(PCI(pc)->pcop);
5739
5740       //fprintf(stderr, "ends with branch\n  ");
5741       //pc->print(stderr,pc);
5742
5743       if(!(pcol && isPCOLAB(pcol))) {
5744         if((PCI(pc)->op != POC_RETLW)
5745                 && (PCI(pc)->op != POC_RETURN) && (PCI(pc)->op != POC_CALL) && (PCI(pc)->op != POC_RETFIE) ) {
5746
5747                 /* continue if label is '$' which assembler knows how to parse */
5748                 if(((PCI(pc)->pcop->type == PO_STR) && !strcmp(PCI(pc)->pcop->name, "$")))continue;
5749
5750                 pc->print(stderr,pc);
5751                 fprintf(stderr, "ERROR: %s, branch instruction doesn't have label\n",__FUNCTION__);
5752         }
5753         continue;
5754       }
5755
5756       if( (pct = findLabelinpBlock(pb,pcol)) != NULL)
5757         LinkFlow_pCode(PCI(pc),PCI(pct));
5758       else
5759         fprintf(stderr, "ERROR: %s, couldn't find label. key=%d,lab=%s\n",
5760                 __FUNCTION__,pcol->key,((PCOP(pcol)->name)?PCOP(pcol)->name:"-"));
5761
5762 //      fprintf(stderr,"pic16_newpCodeOpLabel: key=%d, name=%s\n",pcol->key,(PCOP(pcol)->name)?(PCOP(pcol)->name):"<unknown>");
5763
5764       continue;
5765     }
5766
5767     if(isPCI(pc)) {
5768       //fprintf(stderr, "ends with non-branching instruction:\n");
5769       //pc->print(stderr,pc);
5770
5771       LinkFlow_pCode(PCI(pc),PCI(pic16_findNextInstruction(pc->next)));
5772
5773       continue;
5774     }
5775
5776     if(pc) {
5777       //fprintf(stderr, "ends with unknown\n");
5778       //pc->print(stderr,pc);
5779       continue;
5780     }
5781
5782     //fprintf(stderr, "ends with nothing: ERROR\n");
5783
5784   }
5785 }
5786 /*-----------------------------------------------------------------*/
5787 /*-----------------------------------------------------------------*/
5788
5789 /*-----------------------------------------------------------------*/
5790 /*-----------------------------------------------------------------*/
5791 int pic16_isPCinFlow(pCode *pc, pCode *pcflow)
5792 {
5793
5794   if(!pc || !pcflow)
5795     return 0;
5796
5797   if(!isPCI(pc) || !PCI(pc)->pcflow || !isPCFL(pcflow) )
5798     return 0;
5799
5800   if( PCI(pc)->pcflow->pc.seq == pcflow->seq)
5801     return 1;
5802
5803   return 0;
5804 }
5805
5806
5807
5808
5809
5810 /*-----------------------------------------------------------------*/
5811 /* insertBankSwitch - inserts a bank switch statement in the assembly listing */
5812 /*-----------------------------------------------------------------*/
5813 static void insertBankSwitch(int position, pCode *pc, int bsr)
5814 {
5815   pCode *new_pc;
5816   regs *reg;
5817
5818   if(!pc)
5819     return;
5820
5821 /*
5822  * if bsr == -1 then do not insert a MOVLB instruction, but rather
5823  * insert a BANKSEL assembler directive for the symbol used by
5824  * the pCode. This will allow the linker to setup the correct
5825  * bank at linking time
5826  */
5827
5828         if(pic16_options.no_banksel || bsr != -1) {
5829 //              new_pc = pic16_newpCode(POC_MOVLB, pic16_newpCodeOpLit(bsr));
5830                 return;
5831         } else {
5832                 /* emit the BANKSEL [symbol] */
5833
5834                 /* FIXME */
5835                 /* IMPORTANT: The following code does not check if a symbol is
5836                  * split in multiple banks. This should be corrected. - VR 6/6/2003 */
5837
5838                 reg = pic16_getRegFromInstruction(pc);
5839                 if(!reg)return;
5840                 new_pc = pic16_newpCodeAsmDir("BANKSEL", "%s", pic16_get_op_from_instruction(PCI(pc)));
5841
5842                 position = 0;           // position is always before (sanity check!)
5843         }
5844
5845 #if 0
5846         fprintf(stderr, "%s:%d: inserting bank switch\tbank = %d\n", __FUNCTION__, __LINE__, bsr);
5847         pc->print(stderr, pc);
5848 #endif
5849
5850         if(position) {
5851                 /* insert the bank switch after this pc instruction */
5852                 pCode *pcnext = pic16_findNextInstruction(pc);
5853                 pic16_pCodeInsertAfter(pc, new_pc);
5854                 if(pcnext)
5855                         pc = pcnext;
5856
5857         } else
5858                 pic16_pCodeInsertAfter(pc->prev, new_pc);
5859
5860   /* Move the label, if there is one */
5861
5862         if(PCI(pc)->label) {
5863 //              fprintf(stderr, "%s:%d: moving label due to bank switch directive src= 0x%p dst= 0x%p\n",
5864 //                      __FILE__, __LINE__, pc, new_pc);
5865                 PCAD(new_pc)->pci.label = PCI(pc)->label;
5866                 PCI(pc)->label = NULL;
5867         }
5868
5869 //  fprintf(stderr, "BankSwitch has been inserted\n");
5870 }
5871
5872
5873 /*-----------------------------------------------------------------*/
5874 /*int compareBankFlow - compare the banking requirements between   */
5875 /*  flow objects. */
5876 /*-----------------------------------------------------------------*/
5877 static int compareBankFlow(pCodeFlow *pcflow, pCodeFlowLink *pcflowLink, int toORfrom)
5878 {
5879
5880   if(!pcflow || !pcflowLink || !pcflowLink->pcflow)
5881     return 0;
5882
5883   if(!isPCFL(pcflow) || !isPCFL(pcflowLink->pcflow))
5884     return 0;
5885
5886   if(pcflow->firstBank == -1)
5887     return 0;
5888
5889
5890   if(pcflowLink->pcflow->firstBank == -1) {
5891     pCodeFlowLink *pctl = setFirstItem( toORfrom ?
5892                                         pcflowLink->pcflow->to :
5893                                         pcflowLink->pcflow->from);
5894     return compareBankFlow(pcflow, pctl, toORfrom);
5895   }
5896
5897   if(toORfrom) {
5898     if(pcflow->lastBank == pcflowLink->pcflow->firstBank)
5899       return 0;
5900
5901     pcflowLink->bank_conflict++;
5902     pcflowLink->pcflow->FromConflicts++;
5903     pcflow->ToConflicts++;
5904   } else {
5905
5906     if(pcflow->firstBank == pcflowLink->pcflow->lastBank)
5907       return 0;
5908
5909     pcflowLink->bank_conflict++;
5910     pcflowLink->pcflow->ToConflicts++;
5911     pcflow->FromConflicts++;
5912
5913   }
5914   /*
5915   fprintf(stderr,"compare flow found conflict: seq %d from conflicts %d, to conflicts %d\n",
5916           pcflowLink->pcflow->pc.seq,
5917           pcflowLink->pcflow->FromConflicts,
5918           pcflowLink->pcflow->ToConflicts);
5919   */
5920   return 1;
5921
5922 }
5923
5924 #if 0
5925 /*-----------------------------------------------------------------*/
5926 /*-----------------------------------------------------------------*/
5927 static void DumpFlow(pBlock *pb)
5928 {
5929   pCode *pc=NULL;
5930   pCode *pcflow;
5931   pCodeFlowLink *pcfl;
5932
5933
5934   fprintf(stderr,"Dump flow \n");
5935   pb->pcHead->print(stderr, pb->pcHead);
5936
5937   pcflow = pic16_findNextpCode(pb->pcHead, PC_FLOW);
5938   pcflow->print(stderr,pcflow);
5939
5940   for( pcflow = pic16_findNextpCode(pb->pcHead, PC_FLOW);
5941        pcflow != NULL;
5942        pcflow = pic16_findNextpCode(pcflow->next, PC_FLOW) ) {
5943
5944     if(!isPCFL(pcflow)) {
5945       fprintf(stderr, "DumpFlow - pcflow is not a flow object ");
5946       continue;
5947     }
5948     fprintf(stderr,"dumping: ");
5949     pcflow->print(stderr,pcflow);
5950     FlowStats(PCFL(pcflow));
5951
5952     for(pcfl = setFirstItem(PCFL(pcflow)->to); pcfl; pcfl=setNextItem(PCFL(pcflow)->to)) {
5953
5954       pc = PCODE(pcfl->pcflow);
5955
5956       fprintf(stderr, "    from seq %d:\n",pc->seq);
5957       if(!isPCFL(pc)) {
5958         fprintf(stderr,"oops dumpflow - from is not a pcflow\n");
5959         pc->print(stderr,pc);
5960       }
5961
5962     }
5963
5964     for(pcfl = setFirstItem(PCFL(pcflow)->to); pcfl; pcfl=setNextItem(PCFL(pcflow)->to)) {
5965
5966       pc = PCODE(pcfl->pcflow);
5967
5968       fprintf(stderr, "    to seq %d:\n",pc->seq);
5969       if(!isPCFL(pc)) {
5970         fprintf(stderr,"oops dumpflow - to is not a pcflow\n");
5971         pc->print(stderr,pc);
5972       }
5973
5974     }
5975
5976   }
5977
5978 }
5979 #endif
5980 /*-----------------------------------------------------------------*/
5981 /*-----------------------------------------------------------------*/
5982 static int OptimizepBlock(pBlock *pb)
5983 {
5984   pCode *pc, *pcprev;
5985   int matches =0;
5986
5987   if(!pb || !peepOptimizing)
5988     return 0;
5989
5990   DFPRINTF((stderr," Optimizing pBlock: %c\n",getpBlock_dbName(pb)));
5991 /*
5992   for(pc = pb->pcHead; pc; pc = pc->next)
5993     matches += pic16_pCodePeepMatchRule(pc);
5994 */
5995
5996   pc = pic16_findNextInstruction(pb->pcHead);
5997   if(!pc)
5998     return 0;
5999
6000   pcprev = pc->prev;
6001   do {
6002
6003
6004     if(pic16_pCodePeepMatchRule(pc)) {
6005
6006       matches++;
6007
6008       if(pcprev)
6009         pc = pic16_findNextInstruction(pcprev->next);
6010       else
6011         pc = pic16_findNextInstruction(pb->pcHead);
6012     } else
6013       pc = pic16_findNextInstruction(pc->next);
6014   } while(pc);
6015
6016   if(matches)
6017     DFPRINTF((stderr," Optimizing pBlock: %c - matches=%d\n",getpBlock_dbName(pb),matches));
6018   return matches;
6019
6020 }
6021
6022 /*-----------------------------------------------------------------*/
6023 /*-----------------------------------------------------------------*/
6024 static pCode * findInstructionUsingLabel(pCodeLabel *pcl, pCode *pcs)
6025 {
6026   pCode *pc;
6027
6028   for(pc = pcs; pc; pc = pc->next) {
6029
6030     if(((pc->type == PC_OPCODE) || (pc->type == PC_INLINE)) &&
6031        (PCI(pc)->pcop) &&
6032        (PCI(pc)->pcop->type == PO_LABEL) &&
6033        (PCOLAB(PCI(pc)->pcop)->key == pcl->key))
6034       return pc;
6035   }
6036
6037
6038   return NULL;
6039 }
6040
6041 /*-----------------------------------------------------------------*/
6042 /*-----------------------------------------------------------------*/
6043 static void exchangeLabels(pCodeLabel *pcl, pCode *pc)
6044 {
6045
6046   char *s=NULL;
6047
6048   if(isPCI(pc) &&
6049      (PCI(pc)->pcop) &&
6050      (PCI(pc)->pcop->type == PO_LABEL)) {
6051
6052     pCodeOpLabel *pcol = PCOLAB(PCI(pc)->pcop);
6053
6054 //      fprintf(stderr,"changing label key from %d to %d\n",pcol->key, pcl->key);
6055     if(pcol->pcop.name)
6056       free(pcol->pcop.name);
6057
6058     /* If the key is negative, then we (probably) have a label to
6059      * a function and the name is already defined */
6060
6061     if(pcl->key>0)
6062       sprintf(s=buffer,"_%05d_DS_",pcl->key);
6063     else
6064       s = pcl->label;
6065
6066     //sprintf(buffer,"_%05d_DS_",pcl->key);
6067     if(!s) {
6068       fprintf(stderr, "ERROR %s:%d function label is null\n",__FUNCTION__,__LINE__);
6069     }
6070     pcol->pcop.name = Safe_strdup(s);
6071     pcol->key = pcl->key;
6072     //pc->print(stderr,pc);
6073
6074   }
6075
6076
6077 }
6078
6079 /*-----------------------------------------------------------------*/
6080 /* pBlockRemoveUnusedLabels - remove the pCode labels from the     */
6081 /*                            pCode chain if they're not used.     */
6082 /*-----------------------------------------------------------------*/
6083 static void pBlockRemoveUnusedLabels(pBlock *pb)
6084 {
6085   pCode *pc; pCodeLabel *pcl;
6086
6087   if(!pb)
6088     return;
6089
6090   for(pc = pb->pcHead; (pc=pic16_findNextInstruction(pc->next)) != NULL; ) {
6091
6092     pBranch *pbr = PCI(pc)->label;
6093     if(pbr && pbr->next) {
6094       pCode *pcd = pb->pcHead;
6095
6096 //      fprintf(stderr, "multiple labels\n");
6097 //      pc->print(stderr,pc);
6098
6099       pbr = pbr->next;
6100       while(pbr) {
6101
6102         while ( (pcd = findInstructionUsingLabel(PCL(PCI(pc)->label->pc), pcd)) != NULL) {
6103           //fprintf(stderr,"Used by:\n");
6104           //pcd->print(stderr,pcd);
6105
6106           exchangeLabels(PCL(pbr->pc),pcd);
6107
6108           pcd = pcd->next;
6109         }
6110         pbr = pbr->next;
6111       }
6112     }
6113   }
6114
6115   for(pc = pb->pcHead; pc; pc = pc->next) {
6116
6117     if(isPCL(pc)) // pc->type == PC_LABEL)
6118       pcl = PCL(pc);
6119     else if (isPCI(pc) && PCI(pc)->label) //((pc->type == PC_OPCODE) && PCI(pc)->label)
6120       pcl = PCL(PCI(pc)->label->pc);
6121     else continue;
6122
6123 //      fprintf(stderr," found  A LABEL !!! key = %d, %s\n", pcl->key,pcl->label);
6124
6125     /* This pCode is a label, so search the pBlock to see if anyone
6126      * refers to it */
6127
6128     if( (pcl->key>0) && (!findInstructionUsingLabel(pcl, pb->pcHead))) {
6129     //if( !findInstructionUsingLabel(pcl, pb->pcHead)) {
6130       /* Couldn't find an instruction that refers to this label
6131        * So, unlink the pCode label from it's pCode chain
6132        * and destroy the label */
6133 //      fprintf(stderr," removed  A LABEL !!! key = %d, %s\n", pcl->key,pcl->label);
6134
6135       DFPRINTF((stderr," !!! REMOVED A LABEL !!! key = %d, %s\n", pcl->key,pcl->label));
6136       if(pc->type == PC_LABEL) {
6137         pic16_unlinkpCode(pc);
6138         pCodeLabelDestruct(pc);
6139       } else {
6140         unlinkpCodeFromBranch(pc, PCODE(pcl));
6141         /*if(pc->label->next == NULL && pc->label->pc == NULL) {
6142           free(pc->label);
6143         }*/
6144       }
6145
6146     }
6147   }
6148
6149 }
6150
6151
6152 /*-----------------------------------------------------------------*/
6153 /* pic16_pBlockMergeLabels - remove the pCode labels from the pCode      */
6154 /*                     chain and put them into pBranches that are  */
6155 /*                     associated with the appropriate pCode       */
6156 /*                     instructions.                               */
6157 /*-----------------------------------------------------------------*/
6158 void pic16_pBlockMergeLabels(pBlock *pb)
6159 {
6160   pBranch *pbr;
6161   pCode *pc, *pcnext=NULL;
6162
6163   if(!pb)
6164     return;
6165
6166   /* First, Try to remove any unused labels */
6167   //pBlockRemoveUnusedLabels(pb);
6168
6169   /* Now loop through the pBlock and merge the labels with the opcodes */
6170
6171   pc = pb->pcHead;
6172   //  for(pc = pb->pcHead; pc; pc = pc->next) {
6173
6174   while(pc) {
6175     pCode *pcn = pc->next;
6176
6177     if(pc->type == PC_LABEL) {
6178
6179 //      fprintf(stderr," checking merging label %s\n",PCL(pc)->label);
6180 //      fprintf(stderr,"Checking label key = %d\n",PCL(pc)->key);
6181
6182       if((pcnext = pic16_findNextInstruction(pc) )) {
6183
6184 //              pcnext->print(stderr, pcnext);
6185
6186         // Unlink the pCode label from it's pCode chain
6187         pic16_unlinkpCode(pc);
6188
6189 //      fprintf(stderr,"Merged label key = %d\n",PCL(pc)->key);
6190         // And link it into the instruction's pBranch labels. (Note, since
6191         // it's possible to have multiple labels associated with one instruction
6192         // we must provide a means to accomodate the additional labels. Thus
6193         // the labels are placed into the singly-linked list "label" as
6194         // opposed to being a single member of the pCodeInstruction.)
6195
6196         //_ALLOC(pbr,sizeof(pBranch));
6197 #if 1
6198         pbr = Safe_calloc(1,sizeof(pBranch));
6199         pbr->pc = pc;
6200         pbr->next = NULL;
6201
6202         PCI(pcnext)->label = pic16_pBranchAppend(PCI(pcnext)->label,pbr);
6203 #endif
6204       } else {
6205         fprintf(stderr, "WARNING: couldn't associate label %s with an instruction\n",PCL(pc)->label);
6206       }
6207     } else if(pc->type == PC_CSOURCE) {
6208
6209       /* merge the source line symbolic info into the next instruction */
6210       if((pcnext = pic16_findNextInstruction(pc) )) {
6211
6212         // Unlink the pCode label from it's pCode chain
6213         pic16_unlinkpCode(pc);
6214         PCI(pcnext)->cline = PCCS(pc);
6215         //fprintf(stderr, "merging CSRC\n");
6216         //genericPrint(stderr,pcnext);
6217       }
6218
6219     }
6220     pc = pcn;
6221   }
6222   pBlockRemoveUnusedLabels(pb);
6223
6224 }
6225
6226 /*-----------------------------------------------------------------*/
6227 /*-----------------------------------------------------------------*/
6228 static int OptimizepCode(char dbName)
6229 {
6230 #define MAX_PASSES 4
6231
6232   int matches = 0;
6233   int passes = 0;
6234   pBlock *pb;
6235
6236   if(!the_pFile)
6237     return 0;
6238
6239   DFPRINTF((stderr," Optimizing pCode\n"));
6240
6241   do {
6242     matches = 0;
6243     for(pb = the_pFile->pbHead; pb; pb = pb->next) {
6244       if('*' == dbName || getpBlock_dbName(pb) == dbName)
6245         matches += OptimizepBlock(pb);
6246     }
6247   }
6248   while(matches && ++passes < MAX_PASSES);
6249
6250   return matches;
6251 }
6252
6253 /*-----------------------------------------------------------------*/
6254 /* pic16_popCopyGPR2Bit - copy a pcode operator                          */
6255 /*-----------------------------------------------------------------*/
6256
6257 pCodeOp *pic16_popCopyGPR2Bit(pCodeOp *pc, int bitval)
6258 {
6259   pCodeOp *pcop;
6260
6261   pcop = pic16_newpCodeOpBit(pc->name, bitval, 0);
6262
6263   if( !( (pcop->type == PO_LABEL) ||
6264          (pcop->type == PO_LITERAL) ||
6265          (pcop->type == PO_STR) ))
6266     PCOR(pcop)->r = PCOR(pc)->r;  /* This is dangerous... */
6267     PCOR(pcop)->r->wasUsed = 1;
6268
6269   return pcop;
6270 }
6271
6272
6273 /*----------------------------------------------------------------------*
6274  * pic16_areRegsSame - check to see if the names of two registers match *
6275  *----------------------------------------------------------------------*/
6276 int pic16_areRegsSame(regs *r1, regs *r2)
6277 {
6278         if(!strcmp(r1->name, r2->name))return 1;
6279
6280   return 0;
6281 }
6282
6283
6284 /*-----------------------------------------------------------------*/
6285 /*-----------------------------------------------------------------*/
6286 static void pic16_FixRegisterBanking(pBlock *pb)
6287 {
6288   pCode *pc=NULL;
6289   pCode *pcprev=NULL;
6290   regs *reg, *prevreg;
6291
6292         if(!pb)
6293                 return;
6294
6295         pc = pic16_findNextpCode(pb->pcHead, PC_OPCODE);
6296         if(!pc)
6297                 return;
6298
6299         /* loop through all of the flow blocks with in one pblock */
6300
6301 //      fprintf(stderr,"%s:%d: Register banking\n", __FUNCTION__, __LINE__);
6302
6303   prevreg = NULL;
6304   do {
6305     /* at this point, pc should point to a PC_FLOW object */
6306     /* for each flow block, determine the register banking
6307        requirements */
6308
6309       if(isPCI(pc) && !PCI(pc)->is2MemOp) {
6310                 reg = pic16_getRegFromInstruction(pc);
6311
6312 #if 0
6313                 fprintf(stderr, "reg = %p\n", reg);
6314                 if(reg) {
6315                         fprintf(stderr, "%s:%d:  %s  %d\n",__FUNCTION__, __LINE__, reg->name, reg->rIdx);
6316                         fprintf(stderr, "addr = 0x%03x, bank = %d, bit=%d\tmapped = %d sfr=%d fix=%d\n",
6317                                 reg->address,REG_BANK(reg),reg->isBitField, reg->isMapped,
6318                                 pic16_finalMapping[ reg->address ].isSFR, reg->isFixed);
6319                 }
6320 #endif
6321
6322                 /* we can be 99% that within a pBlock, between two consequtive
6323                  * refernces to the same register, the extra banksel is needless */
6324
6325                 if((reg && !isACCESS_BANK(reg) && (isBankInstruction(pc) == -1))
6326                         && (!isPCI_LIT(pc))
6327                         && (PCI(pc)->op != POC_CALL)
6328
6329                         && ( ((pic16_options.opt_banksel>0)
6330                                 && (!prevreg || (prevreg && !pic16_areRegsSame(reg, prevreg))))
6331                             || (!pic16_options.opt_banksel)
6332                            )
6333                                    )
6334                            {
6335                   /* Examine the instruction before this one to make sure it is
6336                    * not a skip type instruction */
6337                         pcprev = findPrevpCode(pc->prev, PC_OPCODE);
6338
6339                         /* FIXME: if previous is SKIP pCode, we should move the BANKSEL
6340                          * before SKIP, but we have to check if the SKIP uses BANKSEL, etc... */
6341                         if(!pcprev || (pcprev && !isPCI_SKIP(pcprev))) {
6342                                 prevreg = reg;
6343                                 insertBankSwitch(0, pc, (pic16_options.no_banksel)?0:-1);
6344                         }
6345                 }
6346
6347         pcprev = pc;
6348
6349       }
6350
6351       pc = pc->next;
6352   }while (pc);
6353
6354 #if 0
6355   if(pcprev && cur_bank) {
6356
6357     int pos = 1;  /* Assume that the bank switch instruction(s)
6358                    * are inserted after this instruction */
6359
6360     if((PCI(pcprev)->op == POC_RETLW) ||
6361        (PCI(pcprev)->op == POC_RETURN) ||
6362        (PCI(pcprev)->op == POC_RETFIE)) {
6363
6364       /* oops, a RETURN - we need to switch banks *before* the RETURN */
6365
6366       pos = 0;
6367
6368     }
6369
6370     /* Brute force - make sure that we point to bank 0 at the
6371      * end of each flow block */
6372
6373 //    insertBankSwitch(pos, pcprev, 0);
6374 /*
6375     new_pc = pic16_newpCode(POC_MOVLB, pic16_newpCodeOpLit(0));
6376     pic16_pCodeInsertAfter(pcprev, new_pc);
6377 */
6378     cur_bank = 0;
6379     //fprintf(stderr, "Brute force switch\n");
6380   }
6381 #endif
6382
6383 }
6384
6385
6386 static void pBlockDestruct(pBlock *pb)
6387 {
6388
6389   if(!pb)
6390     return;
6391
6392
6393   free(pb);
6394
6395 }
6396
6397 /*-----------------------------------------------------------------*/
6398 /* void mergepBlocks(char dbName) - Search for all pBlocks with the*/
6399 /*                                  name dbName and combine them   */
6400 /*                                  into one block                 */
6401 /*-----------------------------------------------------------------*/
6402 static void mergepBlocks(char dbName)
6403 {
6404
6405   pBlock *pb, *pbmerged = NULL,*pbn;
6406
6407   pb = the_pFile->pbHead;
6408
6409   //fprintf(stderr," merging blocks named %c\n",dbName);
6410   while(pb) {
6411
6412     pbn = pb->next;
6413     //fprintf(stderr,"looking at %c\n",getpBlock_dbName(pb));
6414     if( getpBlock_dbName(pb) == dbName) {
6415
6416       //fprintf(stderr," merged block %c\n",dbName);
6417
6418       if(!pbmerged) {
6419         pbmerged = pb;
6420       } else {
6421         pic16_addpCode2pBlock(pbmerged, pb->pcHead);
6422         /* pic16_addpCode2pBlock doesn't handle the tail: */
6423         pbmerged->pcTail = pb->pcTail;
6424
6425         pb->prev->next = pbn;
6426         if(pbn)
6427           pbn->prev = pb->prev;
6428
6429
6430         pBlockDestruct(pb);
6431       }
6432       //pic16_printpBlock(stderr, pbmerged);
6433     }
6434     pb = pbn;
6435   }
6436
6437 }
6438
6439 /*-----------------------------------------------------------------*/
6440 /* AnalyzeFlow - Examine the flow of the code and optimize         */
6441 /*                                                                 */
6442 /* level 0 == minimal optimization                                 */
6443 /*   optimize registers that are used only by two instructions     */
6444 /* level 1 == maximal optimization                                 */
6445 /*   optimize by looking at pairs of instructions that use the     */
6446 /*   register.                                                     */
6447 /*-----------------------------------------------------------------*/
6448
6449 static void AnalyzeFlow(int level)
6450 {
6451   static int times_called=0;
6452   pBlock *pb;
6453
6454         if(!the_pFile) {
6455
6456                 /* remove unused allocated registers before exiting */
6457                 pic16_RemoveUnusedRegisters();
6458
6459           return;
6460         }
6461
6462
6463   /* if this is not the first time this function has been called,
6464      then clean up old flow information */
6465         if(times_called++) {
6466                 for(pb = the_pFile->pbHead; pb; pb = pb->next)
6467                         unBuildFlow(pb);
6468
6469                 pic16_RegsUnMapLiveRanges();
6470         }
6471
6472         GpcFlowSeq = 1;
6473
6474   /* Phase 2 - Flow Analysis - Register Banking
6475    *
6476    * In this phase, the individual flow blocks are examined
6477    * and register banking is fixed.
6478    */
6479
6480 #if 0
6481         for(pb = the_pFile->pbHead; pb; pb = pb->next)
6482                 pic16_FixRegisterBanking(pb);
6483 #endif
6484
6485   /* Phase 2 - Flow Analysis
6486    *
6487    * In this phase, the pCode is partition into pCodeFlow
6488    * blocks. The flow blocks mark the points where a continuous
6489    * stream of instructions changes flow (e.g. because of
6490    * a call or goto or whatever).
6491    */
6492
6493         for(pb = the_pFile->pbHead; pb; pb = pb->next)
6494                 pic16_BuildFlow(pb);
6495
6496
6497   /* Phase 2 - Flow Analysis - linking flow blocks
6498    *
6499    * In this phase, the individual flow blocks are examined
6500    * to determine their order of excution.
6501    */
6502
6503         for(pb = the_pFile->pbHead; pb; pb = pb->next)
6504                 LinkFlow(pb);
6505
6506   /* Phase 3 - Flow Analysis - Flow Tree
6507    *
6508    * In this phase, the individual flow blocks are examined
6509    * to determine their order of execution.
6510    */
6511
6512         for(pb = the_pFile->pbHead; pb; pb = pb->next)
6513                 pic16_BuildFlowTree(pb);
6514
6515
6516   /* Phase x - Flow Analysis - Used Banks
6517    *
6518    * In this phase, the individual flow blocks are examined
6519    * to determine the Register Banks they use
6520    */
6521
6522 #if 0
6523         for(pb = the_pFile->pbHead; pb; pb = pb->next)
6524                 FixBankFlow(pb);
6525 #endif
6526
6527
6528         for(pb = the_pFile->pbHead; pb; pb = pb->next)
6529                 pic16_pCodeRegMapLiveRanges(pb);
6530
6531         pic16_RemoveUnusedRegisters();
6532
6533   //  for(pb = the_pFile->pbHead; pb; pb = pb->next)
6534         pic16_pCodeRegOptimizeRegUsage(level);
6535
6536
6537         if(!options.nopeep)
6538                 OptimizepCode('*');
6539
6540
6541 #if 0
6542         for(pb = the_pFile->pbHead; pb; pb = pb->next)
6543                 DumpFlow(pb);
6544 #endif
6545
6546   /* debug stuff */
6547         for(pb = the_pFile->pbHead; pb; pb = pb->next) {
6548           pCode *pcflow;
6549                 for( pcflow = pic16_findNextpCode(pb->pcHead, PC_FLOW);
6550                         (pcflow = pic16_findNextpCode(pcflow, PC_FLOW)) != NULL;
6551                         pcflow = pcflow->next) {
6552
6553                         FillFlow(PCFL(pcflow));
6554                 }
6555         }
6556
6557 #if 0
6558         for(pb = the_pFile->pbHead; pb; pb = pb->next) {
6559           pCode *pcflow;
6560
6561                 for( pcflow = pic16_findNextpCode(pb->pcHead, PC_FLOW);
6562                         (pcflow = pic16_findNextpCode(pcflow, PC_FLOW)) != NULL;
6563                         pcflow = pcflow->next) {
6564
6565                         FlowStats(PCFL(pcflow));
6566                 }
6567         }
6568 #endif
6569 }
6570
6571 /* VR -- no need to analyze banking in flow, but left here :
6572  *      1. because it may be used in the future for other purposes
6573  *      2. because if omitted we'll miss some optimization done here
6574  *
6575  * Perhaps I should rename it to something else
6576  */
6577
6578 /*-----------------------------------------------------------------*/
6579 /* pic16_AnalyzeBanking - Called after the memory addresses have been    */
6580 /*                  assigned to the registers.                     */
6581 /*                                                                 */
6582 /*-----------------------------------------------------------------*/
6583
6584 void pic16_AnalyzeBanking(void)
6585 {
6586   pBlock  *pb;
6587
6588         if(!pic16_picIsInitialized()) {
6589                 fprintf(stderr,"Temporary ERROR: at the moment you have to use\n");
6590                 fprintf(stderr,"an include file create by inc2h.pl. See SDCC source:\n");
6591                 fprintf(stderr,"support/scripts/inc2h.pl\n");
6592                 fprintf(stderr,"this is a nuisance bug that will be fixed shortly\n");
6593
6594                 /* I think it took a long long time to fix this bug! ;-) -- VR */
6595
6596                 exit(1);
6597         }
6598
6599
6600         /* Phase x - Flow Analysis - Used Banks
6601          *
6602          * In this phase, the individual flow blocks are examined
6603          * to determine the Register Banks they use
6604          */
6605
6606         AnalyzeFlow(0);
6607         AnalyzeFlow(1);
6608
6609 //      for(pb = the_pFile->pbHead; pb; pb = pb->next)
6610 //              BanksUsedFlow(pb);
6611
6612         if(!the_pFile)return;
6613
6614         for(pb = the_pFile->pbHead; pb; pb = pb->next) {
6615 //              fprintf(stderr, "%s:%d: Fix register banking in pb= 0x%p\n", __FILE__, __LINE__, pb);
6616                 pic16_FixRegisterBanking(pb);
6617         }
6618
6619 }
6620
6621 /*-----------------------------------------------------------------*/
6622 /* buildCallTree - Look at the flow and extract all of the calls.  */
6623 /*-----------------------------------------------------------------*/
6624 static set *register_usage(pBlock *pb);
6625
6626 static void buildCallTree(void    )
6627 {
6628   pBranch *pbr;
6629   pBlock  *pb;
6630   pCode   *pc;
6631
6632   if(!the_pFile)
6633     return;
6634
6635
6636
6637   /* Now build the call tree.
6638      First we examine all of the pCodes for functions.
6639      Keep in mind that the function boundaries coincide
6640      with pBlock boundaries.
6641
6642      The algorithm goes something like this:
6643      We have two nested loops. The outer loop iterates
6644      through all of the pBlocks/functions. The inner
6645      loop iterates through all of the pCodes for
6646      a given pBlock. When we begin iterating through
6647      a pBlock, the variable pc_fstart, pCode of the start
6648      of a function, is cleared. We then search for pCodes
6649      of type PC_FUNCTION. When one is encountered, we
6650      initialize pc_fstart to this and at the same time
6651      associate a new pBranch object that signifies a
6652      branch entry. If a return is found, then this signifies
6653      a function exit point. We'll link the pCodes of these
6654      returns to the matching pc_fstart.
6655
6656      When we're done, a doubly linked list of pBranches
6657      will exist. The head of this list is stored in
6658      `the_pFile', which is the meta structure for all
6659      of the pCode. Look at the pic16_printCallTree function
6660      on how the pBranches are linked together.
6661
6662    */
6663   for(pb = the_pFile->pbHead; pb; pb = pb->next) {
6664     pCode *pc_fstart=NULL;
6665     for(pc = pb->pcHead; pc; pc = pc->next) {
6666       if(isPCF(pc)) {
6667         if (PCF(pc)->fname) {
6668
6669           if(STRCASECMP(PCF(pc)->fname, "_main") == 0) {
6670             //fprintf(stderr," found main \n");
6671             pb->cmemmap = NULL;  /* FIXME do we need to free ? */
6672             pb->dbName = 'M';
6673           }
6674
6675           pbr = Safe_calloc(1,sizeof(pBranch));
6676           pbr->pc = pc_fstart = pc;
6677           pbr->next = NULL;
6678
6679           the_pFile->functions = pic16_pBranchAppend(the_pFile->functions,pbr);
6680
6681           // Here's a better way of doing the same:
6682           addSet(&pb->function_entries, pc);
6683
6684         } else {
6685           // Found an exit point in a function, e.g. return
6686           // (Note, there may be more than one return per function)
6687           if(pc_fstart)
6688             pBranchLink(PCF(pc_fstart), PCF(pc));
6689
6690           addSet(&pb->function_exits, pc);
6691         }
6692       } else if(isCALL(pc)) {
6693         addSet(&pb->function_calls,pc);
6694       }
6695     }
6696   }
6697
6698
6699 #if 0
6700   /* This is not needed because currently all register used
6701    * by a function are stored in stack -- VR */
6702
6703   /* Re-allocate the registers so that there are no collisions
6704    * between local variables when one function call another */
6705
6706   // this is weird...
6707   //  pic16_deallocateAllRegs();
6708
6709   for(pb = the_pFile->pbHead; pb; pb = pb->next) {
6710     if(!pb->visited)
6711       register_usage(pb);
6712   }
6713 #endif
6714
6715 }
6716
6717 /*-----------------------------------------------------------------*/
6718 /* pic16_AnalyzepCode - parse the pCode that has been generated and form */
6719 /*                all of the logical connections.                  */
6720 /*                                                                 */
6721 /* Essentially what's done here is that the pCode flow is          */
6722 /* determined.                                                     */
6723 /*-----------------------------------------------------------------*/
6724
6725 void pic16_AnalyzepCode(char dbName)
6726 {
6727   pBlock *pb;
6728   int i,changes;
6729
6730   if(!the_pFile)
6731     return;
6732
6733   mergepBlocks('D');
6734
6735
6736   /* Phase 1 - Register allocation and peep hole optimization
6737    *
6738    * The first part of the analysis is to determine the registers
6739    * that are used in the pCode. Once that is done, the peep rules
6740    * are applied to the code. We continue to loop until no more
6741    * peep rule optimizations are found (or until we exceed the
6742    * MAX_PASSES threshold).
6743    *
6744    * When done, the required registers will be determined.
6745    *
6746    */
6747   i = 0;
6748   do {
6749
6750     DFPRINTF((stderr," Analyzing pCode: PASS #%d\n",i+1));
6751     //fprintf(stderr," Analyzing pCode: PASS #%d\n",i+1);
6752
6753     /* First, merge the labels with the instructions */
6754     for(pb = the_pFile->pbHead; pb; pb = pb->next) {
6755       if('*' == dbName || getpBlock_dbName(pb) == dbName) {
6756
6757         DFPRINTF((stderr," analyze and merging block %c\n",dbName));
6758         //fprintf(stderr," analyze and merging block %c\n",dbName);
6759         pic16_pBlockMergeLabels(pb);
6760         AnalyzepBlock(pb);
6761       } else {
6762         DFPRINTF((stderr," skipping block analysis dbName=%c blockname=%c\n",dbName,getpBlock_dbName));
6763       }
6764     }
6765
6766         if(!options.nopeep)
6767                 changes = OptimizepCode(dbName);
6768         else changes = 0;
6769
6770   } while(changes && (i++ < MAX_PASSES));
6771
6772   buildCallTree();
6773 }
6774
6775 /*-----------------------------------------------------------------*/
6776 /* ispCodeFunction - returns true if *pc is the pCode of a         */
6777 /*                   function                                      */
6778 /*-----------------------------------------------------------------*/
6779 static bool ispCodeFunction(pCode *pc)
6780 {
6781
6782   if(pc && pc->type == PC_FUNCTION && PCF(pc)->fname)
6783     return 1;
6784
6785   return 0;
6786 }
6787
6788 /*-----------------------------------------------------------------*/
6789 /* findFunction - Search for a function by name (given the name)   */
6790 /*                in the set of all functions that are in a pBlock */
6791 /* (note - I expect this to change because I'm planning to limit   */
6792 /*  pBlock's to just one function declaration                      */
6793 /*-----------------------------------------------------------------*/
6794 static pCode *findFunction(char *fname)
6795 {
6796   pBlock *pb;
6797   pCode *pc;
6798   if(!fname)
6799     return NULL;
6800
6801   for(pb = the_pFile->pbHead; pb; pb = pb->next) {
6802
6803     pc = setFirstItem(pb->function_entries);
6804     while(pc) {
6805
6806       if((pc->type == PC_FUNCTION) &&
6807          (PCF(pc)->fname) &&
6808          (strcmp(fname, PCF(pc)->fname)==0))
6809         return pc;
6810
6811       pc = setNextItem(pb->function_entries);
6812
6813     }
6814
6815   }
6816   return NULL;
6817 }
6818
6819 static void MarkUsedRegisters(set *regset)
6820 {
6821
6822   regs *r1,*r2;
6823
6824   for(r1=setFirstItem(regset); r1; r1=setNextItem(regset)) {
6825 //      fprintf(stderr, "marking register = %s\t", r1->name);
6826     r2 = pic16_regWithIdx(r1->rIdx);
6827 //      fprintf(stderr, "to register = %s\n", r2->name);
6828     r2->isFree = 0;
6829     r2->wasUsed = 1;
6830   }
6831 }
6832
6833 static void pBlockStats(FILE *of, pBlock *pb)
6834 {
6835
6836   pCode *pc;
6837   regs  *r;
6838
6839         if(!pic16_pcode_verbose)return;
6840
6841   fprintf(of,";***\n;  pBlock Stats: dbName = %c\n;***\n",getpBlock_dbName(pb));
6842
6843   // for now just print the first element of each set
6844   pc = setFirstItem(pb->function_entries);
6845   if(pc) {
6846     fprintf(of,";entry:  ");
6847     pc->print(of,pc);
6848   }
6849   pc = setFirstItem(pb->function_exits);
6850   if(pc) {
6851     fprintf(of,";has an exit\n");
6852     //pc->print(of,pc);
6853   }
6854
6855   pc = setFirstItem(pb->function_calls);
6856   if(pc) {
6857     fprintf(of,";functions called:\n");
6858
6859     while(pc) {
6860       if(pc->type == PC_OPCODE && PCI(pc)->op == POC_CALL) {
6861         fprintf(of,";   %s\n",pic16_get_op_from_instruction(PCI(pc)));
6862       }
6863       pc = setNextItem(pb->function_calls);
6864     }
6865   }
6866
6867   r = setFirstItem(pb->tregisters);
6868   if(r) {
6869     int n = elementsInSet(pb->tregisters);
6870
6871     fprintf(of,";%d compiler assigned register%c:\n",n, ( (n!=1) ? 's' : ' '));
6872
6873     while (r) {
6874       fprintf(of,";   %s\n",r->name);
6875       r = setNextItem(pb->tregisters);
6876     }
6877   }
6878 }
6879
6880 /*-----------------------------------------------------------------*/
6881 /*-----------------------------------------------------------------*/
6882 #if 0
6883 static void sequencepCode(void)
6884 {
6885   pBlock *pb;
6886   pCode *pc;
6887
6888
6889   for(pb = the_pFile->pbHead; pb; pb = pb->next) {
6890
6891     pb->seq = GpCodeSequenceNumber+1;
6892
6893     for( pc = pb->pcHead; pc; pc = pc->next)
6894       pc->seq = ++GpCodeSequenceNumber;
6895   }
6896
6897 }
6898 #endif
6899
6900 /*-----------------------------------------------------------------*/
6901 /*-----------------------------------------------------------------*/
6902 static set *register_usage(pBlock *pb)
6903 {
6904   pCode *pc,*pcn;
6905   set *registers=NULL;
6906   set *registersInCallPath = NULL;
6907
6908   /* check recursion */
6909
6910   pc = setFirstItem(pb->function_entries);
6911
6912   if(!pc)
6913     return registers;
6914
6915   pb->visited = 1;
6916
6917   if(pc->type != PC_FUNCTION)
6918     fprintf(stderr,"%s, first pc is not a function???\n",__FUNCTION__);
6919
6920   pc = setFirstItem(pb->function_calls);
6921   for( ; pc; pc = setNextItem(pb->function_calls)) {
6922
6923     if(pc->type == PC_OPCODE && PCI(pc)->op == POC_CALL) {
6924       char *dest = pic16_get_op_from_instruction(PCI(pc));
6925
6926       pcn = findFunction(dest);
6927       if(pcn)
6928         registersInCallPath = register_usage(pcn->pb);
6929     } else
6930       fprintf(stderr,"BUG? pCode isn't a POC_CALL %d\n",__LINE__);
6931
6932   }
6933
6934 #ifdef PCODE_DEBUG
6935   pBlockStats(stderr,pb);  // debug
6936 #endif
6937
6938   // Mark the registers in this block as used.
6939
6940   MarkUsedRegisters(pb->tregisters);
6941   if(registersInCallPath) {
6942     /* registers were used in the functions this pBlock has called */
6943     /* so now, we need to see if these collide with the ones we are */
6944     /* using here */
6945
6946     regs *r1,*r2, *newreg;
6947
6948     DFPRINTF((stderr,"comparing registers\n"));
6949
6950     r1 = setFirstItem(registersInCallPath);
6951     while(r1) {
6952
6953       r2 = setFirstItem(pb->tregisters);
6954
6955       while(r2 && (r1->type != REG_STK)) {
6956
6957         if(r2->rIdx == r1->rIdx) {
6958           newreg = pic16_findFreeReg(REG_GPR);
6959
6960
6961           if(!newreg) {
6962             DFPRINTF((stderr,"Bummer, no more registers.\n"));
6963             exit(1);
6964           }
6965
6966           DFPRINTF((stderr,"Cool found register collision nIdx=%d moving to %d\n",
6967                   r1->rIdx, newreg->rIdx));
6968           r2->rIdx = newreg->rIdx;
6969           //if(r2->name) free(r2->name);
6970           if(newreg->name)
6971             r2->name = Safe_strdup(newreg->name);
6972           else
6973             r2->name = NULL;
6974           newreg->isFree = 0;
6975           newreg->wasUsed = 1;
6976         }
6977         r2 = setNextItem(pb->tregisters);
6978       }
6979
6980       r1 = setNextItem(registersInCallPath);
6981     }
6982
6983     /* Collisions have been resolved. Now free the registers in the call path */
6984     r1 = setFirstItem(registersInCallPath);
6985     while(r1) {
6986       if(r1->type != REG_STK) {
6987         newreg = pic16_regWithIdx(r1->rIdx);
6988         newreg->isFree = 1;
6989       }
6990       r1 = setNextItem(registersInCallPath);
6991     }
6992
6993   }// else
6994   //    MarkUsedRegisters(pb->registers);
6995
6996   registers = unionSets(pb->tregisters, registersInCallPath, THROW_NONE);
6997 #ifdef PCODE_DEBUG
6998   if(registers)
6999     DFPRINTF((stderr,"returning regs\n"));
7000   else
7001     DFPRINTF((stderr,"not returning regs\n"));
7002
7003   DFPRINTF((stderr,"pBlock after register optim.\n"));
7004   pBlockStats(stderr,pb);  // debug
7005 #endif
7006
7007   return registers;
7008 }
7009
7010 /*-----------------------------------------------------------------*/
7011 /* pct2 - writes the call tree to a file                           */
7012 /*                                                                 */
7013 /*-----------------------------------------------------------------*/
7014 static void pct2(FILE *of,pBlock *pb,int indent)
7015 {
7016   pCode *pc,*pcn;
7017   int i;
7018   //  set *registersInCallPath = NULL;
7019
7020   if(!of)
7021     return;
7022
7023   if(indent > 10)
7024     return; //recursion ?
7025
7026   pc = setFirstItem(pb->function_entries);
7027
7028   if(!pc)
7029     return;
7030
7031   pb->visited = 0;
7032
7033   for(i=0;i<indent;i++)   // Indentation
7034     fputc(' ',of);
7035
7036   if(pc->type == PC_FUNCTION)
7037     fprintf(of,"%s\n",PCF(pc)->fname);
7038   else
7039     return;  // ???
7040
7041
7042   pc = setFirstItem(pb->function_calls);
7043   for( ; pc; pc = setNextItem(pb->function_calls)) {
7044
7045     if(pc->type == PC_OPCODE && PCI(pc)->op == POC_CALL) {
7046       char *dest = pic16_get_op_from_instruction(PCI(pc));
7047
7048       pcn = findFunction(dest);
7049       if(pcn)
7050         pct2(of,pcn->pb,indent+1);
7051     } else
7052       fprintf(of,"BUG? pCode isn't a POC_CALL %d\n",__LINE__);
7053
7054   }
7055
7056
7057 }
7058
7059
7060 /*-----------------------------------------------------------------*/
7061 /* pic16_printCallTree - writes the call tree to a file                  */
7062 /*                                                                 */
7063 /*-----------------------------------------------------------------*/
7064
7065 void pic16_printCallTree(FILE *of)
7066 {
7067   pBranch *pbr;
7068   pBlock  *pb;
7069   pCode   *pc;
7070
7071   if(!the_pFile)
7072     return;
7073
7074   if(!of)
7075     of = stderr;
7076
7077   fprintf(of, "\npBlock statistics\n");
7078   for(pb = the_pFile->pbHead; pb;  pb = pb->next )
7079     pBlockStats(of,pb);
7080
7081
7082
7083   fprintf(of,"Call Tree\n");
7084   pbr = the_pFile->functions;
7085   while(pbr) {
7086     if(pbr->pc) {
7087       pc = pbr->pc;
7088       if(!ispCodeFunction(pc))
7089         fprintf(of,"bug in call tree");
7090
7091
7092       fprintf(of,"Function: %s\n", PCF(pc)->fname);
7093
7094       while(pc->next && !ispCodeFunction(pc->next)) {
7095         pc = pc->next;
7096         if(pc->type == PC_OPCODE && PCI(pc)->op == POC_CALL)
7097           fprintf(of,"\t%s\n",pic16_get_op_from_instruction(PCI(pc)));
7098       }
7099     }
7100
7101     pbr = pbr->next;
7102   }
7103
7104
7105   fprintf(of,"\n**************\n\na better call tree\n");
7106   for(pb = the_pFile->pbHead; pb; pb = pb->next) {
7107     if(pb->visited)
7108       pct2(of,pb,0);
7109   }
7110
7111   for(pb = the_pFile->pbHead; pb; pb = pb->next) {
7112     fprintf(of,"block dbname: %c\n", getpBlock_dbName(pb));
7113   }
7114 }
7115
7116
7117
7118 /*-----------------------------------------------------------------*/
7119 /*                                                                 */
7120 /*-----------------------------------------------------------------*/
7121
7122 static void InlineFunction(pBlock *pb)
7123 {
7124   pCode *pc;
7125   pCode *pc_call;
7126
7127   if(!pb)
7128     return;
7129
7130   pc = setFirstItem(pb->function_calls);
7131
7132   for( ; pc; pc = setNextItem(pb->function_calls)) {
7133
7134     if(isCALL(pc)) {
7135       pCode *pcn = findFunction(pic16_get_op_from_instruction(PCI(pc)));
7136       pCode *pct;
7137       pCode *pce;
7138
7139       pBranch *pbr;
7140
7141       if(pcn && isPCF(pcn) && (PCF(pcn)->ncalled == 0)) {               /* change 0 to 1 to enable inlining */
7142
7143         //fprintf(stderr,"Cool can inline:\n");
7144         //pcn->print(stderr,pcn);
7145
7146         //fprintf(stderr,"recursive call Inline\n");
7147         InlineFunction(pcn->pb);
7148         //fprintf(stderr,"return from recursive call Inline\n");
7149
7150         /*
7151           At this point, *pc points to a CALL mnemonic, and
7152           *pcn points to the function that is being called.
7153
7154           To in-line this call, we need to remove the CALL
7155           and RETURN(s), and link the function pCode in with
7156           the CALLee pCode.
7157
7158         */
7159
7160
7161         /* Remove the CALL */
7162         pc_call = pc;
7163         pc = pc->prev;
7164
7165         /* remove callee pBlock from the pBlock linked list */
7166         removepBlock(pcn->pb);
7167
7168         pce = pcn;
7169         while(pce) {
7170           pce->pb = pb;
7171           pce = pce->next;
7172         }
7173
7174         /* Remove the Function pCode */
7175         pct = pic16_findNextInstruction(pcn->next);
7176
7177         /* Link the function with the callee */
7178         pc->next = pcn->next;
7179         pcn->next->prev = pc;
7180
7181         /* Convert the function name into a label */
7182
7183         pbr = Safe_calloc(1,sizeof(pBranch));
7184         pbr->pc = pic16_newpCodeLabel(PCF(pcn)->fname, -1);
7185         pbr->next = NULL;
7186         PCI(pct)->label = pic16_pBranchAppend(PCI(pct)->label,pbr);
7187         PCI(pct)->label = pic16_pBranchAppend(PCI(pct)->label,PCI(pc_call)->label);
7188
7189         /* turn all of the return's except the last into goto's */
7190         /* check case for 2 instruction pBlocks */
7191         pce = pic16_findNextInstruction(pcn->next);
7192         while(pce) {
7193           pCode *pce_next = pic16_findNextInstruction(pce->next);
7194
7195           if(pce_next == NULL) {
7196             /* found the last return */
7197             pCode *pc_call_next =  pic16_findNextInstruction(pc_call->next);
7198
7199             //fprintf(stderr,"found last return\n");
7200             //pce->print(stderr,pce);
7201             pce->prev->next = pc_call->next;
7202             pc_call->next->prev = pce->prev;
7203             PCI(pc_call_next)->label = pic16_pBranchAppend(PCI(pc_call_next)->label,
7204                                                       PCI(pce)->label);
7205           }
7206
7207           pce = pce_next;
7208         }
7209
7210
7211       }
7212     } else
7213       fprintf(stderr,"BUG? pCode isn't a POC_CALL %d\n",__LINE__);
7214
7215   }
7216
7217 }
7218
7219 /*-----------------------------------------------------------------*/
7220 /*                                                                 */
7221 /*-----------------------------------------------------------------*/
7222
7223 void pic16_InlinepCode(void)
7224 {
7225
7226   pBlock  *pb;
7227   pCode   *pc;
7228
7229   if(!the_pFile)
7230     return;
7231
7232   if(!functionInlining)
7233     return;
7234
7235   /* Loop through all of the function definitions and count the
7236    * number of times each one is called */
7237   //fprintf(stderr,"inlining %d\n",__LINE__);
7238
7239   for(pb = the_pFile->pbHead; pb; pb = pb->next) {
7240
7241     pc = setFirstItem(pb->function_calls);
7242
7243     for( ; pc; pc = setNextItem(pb->function_calls)) {
7244
7245       if(isCALL(pc)) {
7246         pCode *pcn = findFunction(pic16_get_op_from_instruction(PCI(pc)));
7247         if(pcn && isPCF(pcn)) {
7248           PCF(pcn)->ncalled++;
7249         }
7250       } else
7251         fprintf(stderr,"BUG? pCode isn't a POC_CALL %d\n",__LINE__);
7252
7253     }
7254   }
7255
7256   //fprintf(stderr,"inlining %d\n",__LINE__);
7257
7258   /* Now, Loop through the function definitions again, but this
7259    * time inline those functions that have only been called once. */
7260
7261   InlineFunction(the_pFile->pbHead);
7262   //fprintf(stderr,"inlining %d\n",__LINE__);
7263
7264   for(pb = the_pFile->pbHead; pb; pb = pb->next)
7265     unBuildFlow(pb);
7266
7267 }
7268
7269 char *pic_optype_names[]={
7270         "PO_NONE",         // No operand e.g. NOP
7271         "PO_W",              // The working register (as a destination)
7272         "PO_WREG",           // The working register (as a file register)
7273         "PO_STATUS",         // The 'STATUS' register
7274         "PO_BSR",            // The 'BSR' register
7275         "PO_FSR0",           // The "file select register" (in PIC18 family it's one
7276                              // of three)
7277         "PO_INDF0",          // The Indirect register
7278         "PO_INTCON",         // Interrupt Control register
7279         "PO_GPR_REGISTER",   // A general purpose register
7280         "PO_GPR_BIT",        // A bit of a general purpose register
7281         "PO_GPR_TEMP",       // A general purpose temporary register
7282         "PO_SFR_REGISTER",   // A special function register (e.g. PORTA)
7283         "PO_PCL",            // Program counter Low register
7284         "PO_PCLATH",         // Program counter Latch high register
7285         "PO_PCLATU",         // Program counter Latch upper register
7286         "PO_PRODL",          // Product Register Low
7287         "PO_PRODH",          // Product Register High
7288         "PO_LITERAL",        // A constant
7289         "PO_REL_ADDR",       // A relative address
7290         "PO_IMMEDIATE",      //  (8051 legacy)
7291         "PO_DIR",            // Direct memory (8051 legacy)
7292         "PO_CRY",            // bit memory (8051 legacy)
7293         "PO_BIT",            // bit operand.
7294         "PO_STR",            //  (8051 legacy)
7295         "PO_LABEL",
7296         "PO_WILD"            // Wild card operand in peep optimizer
7297 };
7298
7299
7300 char *dumpPicOptype(PIC_OPTYPE type)
7301 {
7302         return (pic_optype_names[ type ]);
7303 }