1 /*****************************************************************************/
5 /* Code segment entry */
9 /* (C) 2001-2004 Ullrich von Bassewitz */
10 /* Römerstrasse 52 */
11 /* D-70794 Filderstadt */
12 /* EMail: uz@cc65.org */
15 /* This software is provided 'as-is', without any expressed or implied */
16 /* warranty. In no event will the authors be held liable for any damages */
17 /* arising from the use of this software. */
19 /* Permission is granted to anyone to use this software for any purpose, */
20 /* including commercial applications, and to alter it and redistribute it */
21 /* freely, subject to the following restrictions: */
23 /* 1. The origin of this software must not be misrepresented; you must not */
24 /* claim that you wrote the original software. If you use this software */
25 /* in a product, an acknowledgment in the product documentation would be */
26 /* appreciated but is not required. */
27 /* 2. Altered source versions must be plainly marked as such, and must not */
28 /* be misrepresented as being the original software. */
29 /* 3. This notice may not be removed or altered from any source */
32 /*****************************************************************************/
42 #include "debugflag.h"
56 /*****************************************************************************/
58 /*****************************************************************************/
63 static char EmptyArg[] = "";
67 /*****************************************************************************/
68 /* Helper functions */
69 /*****************************************************************************/
73 static void FreeArg (char* Arg)
74 /* Free a code entry argument */
76 if (Arg != EmptyArg) {
83 static char* GetArgCopy (const char* Arg)
84 /* Create an argument copy for assignment */
86 if (Arg && Arg[0] != '\0') {
90 /* Use the empty argument string */
97 static int NumArg (const char* Arg, unsigned long* Num)
98 /* If the given argument is numerical, convert it and return true. Otherwise
99 * set Num to zero and return false.
105 /* Determine the base */
110 } else if (*Arg == '%') {
115 /* Convert the value. strtol is not exactly what we want here, but it's
116 * cheap and may be replaced by something fancier later.
118 Val = strtoul (Arg, &End, Base);
120 /* Check if the conversion was successful */
123 /* Could not convert */
138 static void SetUseChgInfo (CodeEntry* E, const OPCDesc* D)
139 /* Set the Use and Chg in E */
143 /* If this is a subroutine call, or a jump to an external function,
144 * lookup the information about this function and use it. The jump itself
145 * does not change any registers, so we don't need to use the data from D.
147 if ((E->Info & (OF_BRA | OF_CALL)) != 0 && E->JumpTo == 0) {
148 /* A subroutine call or jump to external symbol (function exit) */
149 GetFuncInfo (E->Arg, &E->Use, &E->Chg);
151 /* Some other instruction. Use the values from the opcode description
152 * plus addressing mode info.
154 E->Use = D->Use | GetAMUseInfo (E->AM);
157 /* Check for special zero page registers used */
161 if (E->OPC == OP65_ASL || E->OPC == OP65_DEC ||
162 E->OPC == OP65_INC || E->OPC == OP65_LSR ||
163 E->OPC == OP65_ROL || E->OPC == OP65_ROR) {
164 /* A is changed by these insns */
171 /* Be conservative: */
175 Info = GetZPInfo (E->Arg);
176 if (Info && Info->ByteUse != REG_NONE) {
177 if (E->OPC == OP65_ASL || E->OPC == OP65_DEC ||
178 E->OPC == OP65_INC || E->OPC == OP65_LSR ||
179 E->OPC == OP65_ROL || E->OPC == OP65_ROR ||
180 E->OPC == OP65_TRB || E->OPC == OP65_TSB) {
181 /* The zp loc is both, input and output */
182 E->Chg |= Info->ByteUse;
183 E->Use |= Info->ByteUse;
184 } else if ((E->Info & OF_STORE) != 0) {
186 E->Chg |= Info->ByteUse;
189 E->Use |= Info->ByteUse;
197 Info = GetZPInfo (E->Arg);
198 if (Info && Info->ByteUse != REG_NONE) {
199 /* These addressing modes will never change the zp loc */
200 E->Use |= Info->WordUse;
205 /* Keep gcc silent */
213 /*****************************************************************************/
215 /*****************************************************************************/
219 const char* MakeHexArg (unsigned Num)
220 /* Convert Num into a string in the form $XY, suitable for passing it as an
221 * argument to NewCodeEntry, and return a pointer to the string.
222 * BEWARE: The function returns a pointer to a static buffer, so the value is
223 * gone if you call it twice (and apart from that it's not thread and signal
228 xsprintf (Buf, sizeof (Buf), "$%02X", (unsigned char) Num);
234 CodeEntry* NewCodeEntry (opc_t OPC, am_t AM, const char* Arg,
235 CodeLabel* JumpTo, LineInfo* LI)
236 /* Create a new code entry, initialize and return it */
238 /* Get the opcode description */
239 const OPCDesc* D = GetOPCDesc (OPC);
241 /* Allocate memory */
242 CodeEntry* E = xmalloc (sizeof (CodeEntry));
244 /* Initialize the fields */
247 E->Size = GetInsnSize (E->OPC, E->AM);
248 E->Arg = GetArgCopy (Arg);
249 E->Flags = NumArg (E->Arg, &E->Num)? CEF_NUMARG : 0; /* Needs E->Arg */
252 E->LI = UseLineInfo (LI);
254 SetUseChgInfo (E, D);
255 InitCollection (&E->Labels);
257 /* If we have a label given, add this entry to the label */
259 CollAppend (&JumpTo->JumpFrom, E);
262 /* Return the initialized struct */
268 void FreeCodeEntry (CodeEntry* E)
269 /* Free the given code entry */
271 /* Free the string argument if we have one */
274 /* Cleanup the collection */
275 DoneCollection (&E->Labels);
277 /* Release the line info */
278 ReleaseLineInfo (E->LI);
280 /* Delete the register info */
289 void CE_ReplaceOPC (CodeEntry* E, opc_t OPC)
290 /* Replace the opcode of the instruction. This will also replace related info,
291 * Size, Use and Chg, but it will NOT update any arguments or labels.
294 /* Get the opcode descriptor */
295 const OPCDesc* D = GetOPCDesc (OPC);
297 /* Replace the opcode */
300 E->Size = GetInsnSize (E->OPC, E->AM);
301 SetUseChgInfo (E, D);
306 int CodeEntriesAreEqual (const CodeEntry* E1, const CodeEntry* E2)
307 /* Check if both code entries are equal */
309 return (E1->OPC == E2->OPC && E1->AM == E2->AM && strcmp (E1->Arg, E2->Arg) == 0);
314 void CE_AttachLabel (CodeEntry* E, CodeLabel* L)
315 /* Attach the label to the entry */
317 /* Add it to the entries label list */
318 CollAppend (&E->Labels, L);
320 /* Tell the label about it's owner */
326 void CE_MoveLabel (CodeLabel* L, CodeEntry* E)
327 /* Move the code label L from it's former owner to the code entry E. */
329 /* Delete the label from the owner */
330 CollDeleteItem (&L->Owner->Labels, L);
332 /* Set the new owner */
333 CollAppend (&E->Labels, L);
339 void CE_SetArg (CodeEntry* E, const char* Arg)
340 /* Replace the argument by the new one. */
342 /* Free the old argument */
345 /* Assign the new one */
346 E->Arg = GetArgCopy (Arg);
351 void CE_SetNumArg (CodeEntry* E, long Num)
352 /* Set a new numeric argument for the given code entry that must already
353 * have a numeric argument.
358 /* Check that the entry has a numerical argument */
359 CHECK (E->Flags & CEF_NUMARG);
361 /* Make the new argument string */
364 xsprintf (Buf, sizeof (Buf), "$%02X", (unsigned) Num);
365 } else if (E->Size == 3) {
367 xsprintf (Buf, sizeof (Buf), "$%04X", (unsigned) Num);
369 Internal ("Invalid instruction size in CE_SetNumArg");
372 /* Replace the argument by the new one */
375 /* Use the new numerical value */
381 int CE_KnownImm (const CodeEntry* E)
382 /* Return true if the argument of E is a known immediate value */
384 return (E->AM == AM65_IMM && (E->Flags & CEF_NUMARG) != 0);
389 int CE_UseLoadFlags (const CodeEntry* E)
390 /* Return true if the instruction uses any flags that are set by a load of
391 * a register (N and Z).
394 /* A branch will use the flags */
395 if (E->Info & OF_FBRA) {
399 /* Call of a boolean transformer routine will also use the flags */
400 if (E->OPC == OP65_JSR) {
401 /* Get the condition that is evaluated and check it */
402 switch (FindBoolCmpCond (E->Arg)) {
411 /* Will use the N or Z flags */
415 case CMP_UGE: /* Uses only carry */
416 case CMP_ULT: /* Dito */
417 default: /* No bool transformer subroutine */
428 void CE_FreeRegInfo (CodeEntry* E)
429 /* Free an existing register info struct */
439 void CE_GenRegInfo (CodeEntry* E, RegContents* InputRegs)
440 /* Generate register info for this instruction. If an old info exists, it is
444 /* Pointers to the register contents */
448 /* Function register usage */
449 unsigned short Use, Chg;
451 /* If we don't have a register info struct, allocate one. */
453 E->RI = NewRegInfo (InputRegs);
456 E->RI->In = *InputRegs;
458 RC_Invalidate (&E->RI->In);
460 E->RI->Out2 = E->RI->Out = E->RI->In;
463 /* Get pointers to the register contents */
467 /* Handle the different instructions */
471 /* We don't know the value of the carry, so the result is
474 Out->RegA = UNKNOWN_REGVAL;
478 if (RegValIsKnown (In->RegA)) {
479 if (CE_KnownImm (E)) {
480 Out->RegA = In->RegA & (short) E->Num;
481 } else if (E->AM == AM65_ZP) {
482 switch (GetKnownReg (E->Use & REG_ZP, In)) {
484 Out->RegA = In->RegA & In->Tmp1;
487 Out->RegA = In->RegA & In->Ptr1Lo;
490 Out->RegA = In->RegA & In->Ptr1Hi;
493 Out->RegA = In->RegA & In->SRegLo;
496 Out->RegA = In->RegA & In->SRegHi;
499 Out->RegA = UNKNOWN_REGVAL;
503 Out->RegA = UNKNOWN_REGVAL;
509 if (E->AM == AM65_ACC && RegValIsKnown (In->RegA)) {
510 Out->RegA = (In->RegA << 1) & 0xFF;
511 } else if (E->AM == AM65_ZP) {
512 switch (GetKnownReg (E->Chg & REG_ZP, In)) {
514 Out->Tmp1 = (In->Tmp1 << 1) & 0xFF;
517 Out->Ptr1Lo = (In->Ptr1Lo << 1) & 0xFF;
520 Out->Ptr1Hi = (In->Ptr1Hi << 1) & 0xFF;
523 Out->SRegLo = (In->SRegLo << 1) & 0xFF;
526 Out->SRegHi = (In->SRegHi << 1) & 0xFF;
529 } else if (E->AM == AM65_ZPX) {
530 /* Invalidates all ZP registers */
531 RC_InvalidateZP (Out);
590 if (RegValIsKnown (In->RegA)) {
591 Out->RegA = (In->RegA - 1) & 0xFF;
596 if (E->AM == AM65_ACC && RegValIsKnown (In->RegA)) {
597 Out->RegA = (In->RegA - 1) & 0xFF;
598 } else if (E->AM == AM65_ZP) {
599 switch (GetKnownReg (E->Chg & REG_ZP, In)) {
601 Out->Tmp1 = (In->Tmp1 - 1) & 0xFF;
604 Out->Ptr1Lo = (In->Ptr1Lo - 1) & 0xFF;
607 Out->Ptr1Hi = (In->Ptr1Hi - 1) & 0xFF;
610 Out->SRegLo = (In->SRegLo - 1) & 0xFF;
613 Out->SRegHi = (In->SRegHi - 1) & 0xFF;
616 } else if (E->AM == AM65_ZPX) {
617 /* Invalidates all ZP registers */
618 RC_InvalidateZP (Out);
623 if (RegValIsKnown (In->RegX)) {
624 Out->RegX = (In->RegX - 1) & 0xFF;
629 if (RegValIsKnown (In->RegY)) {
630 Out->RegY = (In->RegY - 1) & 0xFF;
635 if (RegValIsKnown (In->RegA)) {
636 if (CE_KnownImm (E)) {
637 Out->RegA = In->RegA ^ (short) E->Num;
638 } else if (E->AM == AM65_ZP) {
639 switch (GetKnownReg (E->Use & REG_ZP, In)) {
641 Out->RegA = In->RegA ^ In->Tmp1;
644 Out->RegA = In->RegA ^ In->Ptr1Lo;
647 Out->RegA = In->RegA ^ In->Ptr1Hi;
650 Out->RegA = In->RegA ^ In->SRegLo;
653 Out->RegA = In->RegA ^ In->SRegHi;
656 Out->RegA = UNKNOWN_REGVAL;
660 Out->RegA = UNKNOWN_REGVAL;
666 if (RegValIsKnown (In->RegA)) {
667 Out->RegA = (In->RegA + 1) & 0xFF;
672 if (E->AM == AM65_ACC && RegValIsKnown (In->RegA)) {
673 Out->RegA = (In->RegA + 1) & 0xFF;
674 } else if (E->AM == AM65_ZP) {
675 switch (GetKnownReg (E->Chg & REG_ZP, In)) {
677 Out->Tmp1 = (In->Tmp1 + 1) & 0xFF;
680 Out->Ptr1Lo = (In->Ptr1Lo + 1) & 0xFF;
683 Out->Ptr1Hi = (In->Ptr1Hi + 1) & 0xFF;
686 Out->SRegLo = (In->SRegLo + 1) & 0xFF;
689 Out->SRegHi = (In->SRegHi + 1) & 0xFF;
692 } else if (E->AM == AM65_ZPX) {
693 /* Invalidates all ZP registers */
694 RC_InvalidateZP (Out);
699 if (RegValIsKnown (In->RegX)) {
700 Out->RegX = (In->RegX + 1) & 0xFF;
705 if (RegValIsKnown (In->RegY)) {
706 Out->RegY = (In->RegY + 1) & 0xFF;
732 /* Get the code info for the function */
733 GetFuncInfo (E->Arg, &Use, &Chg);
735 Out->RegA = UNKNOWN_REGVAL;
738 Out->RegX = UNKNOWN_REGVAL;
741 Out->RegY = UNKNOWN_REGVAL;
743 if (Chg & REG_TMP1) {
744 Out->Tmp1 = UNKNOWN_REGVAL;
746 if (Chg & REG_PTR1_LO) {
747 Out->Ptr1Lo = UNKNOWN_REGVAL;
749 if (Chg & REG_PTR1_HI) {
750 Out->Ptr1Hi = UNKNOWN_REGVAL;
752 if (Chg & REG_SREG_LO) {
753 Out->SRegLo = UNKNOWN_REGVAL;
755 if (Chg & REG_SREG_HI) {
756 Out->SRegHi = UNKNOWN_REGVAL;
758 /* ## FIXME: Quick hack for some known functions: */
759 if (strcmp (E->Arg, "tosandax") == 0) {
766 } else if (strcmp (E->Arg, "tosorax") == 0) {
767 if (In->RegA == 0xFF) {
770 if (In->RegX == 0xFF) {
773 } else if (FindBoolCmpCond (E->Arg) != CMP_INV) {
785 if (CE_KnownImm (E)) {
786 Out->RegA = (unsigned char) E->Num;
787 } else if (E->AM == AM65_ZP) {
788 switch (GetKnownReg (E->Use & REG_ZP, In)) {
790 Out->RegA = In->Tmp1;
793 Out->RegA = In->Ptr1Lo;
796 Out->RegA = In->Ptr1Hi;
799 Out->RegA = In->SRegLo;
802 Out->RegA = In->SRegHi;
805 Out->RegA = UNKNOWN_REGVAL;
809 /* A is now unknown */
810 Out->RegA = UNKNOWN_REGVAL;
815 if (CE_KnownImm (E)) {
816 Out->RegX = (unsigned char) E->Num;
817 } else if (E->AM == AM65_ZP) {
818 switch (GetKnownReg (E->Use & REG_ZP, In)) {
820 Out->RegX = In->Tmp1;
823 Out->RegX = In->Ptr1Lo;
826 Out->RegX = In->Ptr1Hi;
829 Out->RegX = In->SRegLo;
832 Out->RegX = In->SRegHi;
835 Out->RegX = UNKNOWN_REGVAL;
839 /* X is now unknown */
840 Out->RegX = UNKNOWN_REGVAL;
845 if (CE_KnownImm (E)) {
846 Out->RegY = (unsigned char) E->Num;
847 } else if (E->AM == AM65_ZP) {
848 switch (GetKnownReg (E->Use & REG_ZP, In)) {
850 Out->RegY = In->Tmp1;
853 Out->RegY = In->Ptr1Lo;
856 Out->RegY = In->Ptr1Hi;
859 Out->RegY = In->SRegLo;
862 Out->RegY = In->SRegHi;
865 Out->RegY = UNKNOWN_REGVAL;
869 /* Y is now unknown */
870 Out->RegY = UNKNOWN_REGVAL;
875 if (E->AM == AM65_ACC && RegValIsKnown (In->RegA)) {
876 Out->RegA = (In->RegA >> 1) & 0xFF;
877 } else if (E->AM == AM65_ZP) {
878 switch (GetKnownReg (E->Chg & REG_ZP, In)) {
880 Out->Tmp1 = (In->Tmp1 >> 1) & 0xFF;
883 Out->Ptr1Lo = (In->Ptr1Lo >> 1) & 0xFF;
886 Out->Ptr1Hi = (In->Ptr1Hi >> 1) & 0xFF;
889 Out->SRegLo = (In->SRegLo >> 1) & 0xFF;
892 Out->SRegHi = (In->SRegHi >> 1) & 0xFF;
895 } else if (E->AM == AM65_ZPX) {
896 /* Invalidates all ZP registers */
897 RC_InvalidateZP (Out);
905 if (RegValIsKnown (In->RegA)) {
906 if (CE_KnownImm (E)) {
907 Out->RegA = In->RegA | (short) E->Num;
908 } else if (E->AM == AM65_ZP) {
909 switch (GetKnownReg (E->Use & REG_ZP, In)) {
911 Out->RegA = In->RegA | In->Tmp1;
914 Out->RegA = In->RegA | In->Ptr1Lo;
917 Out->RegA = In->RegA | In->Ptr1Hi;
920 Out->RegA = In->RegA | In->SRegLo;
923 Out->RegA = In->RegA | In->SRegHi;
926 Out->RegA = UNKNOWN_REGVAL;
930 /* A is now unknown */
931 Out->RegA = UNKNOWN_REGVAL;
949 Out->RegA = UNKNOWN_REGVAL;
956 Out->RegX = UNKNOWN_REGVAL;
960 Out->RegY = UNKNOWN_REGVAL;
964 /* We don't know the value of the carry bit */
965 if (E->AM == AM65_ACC) {
966 Out->RegA = UNKNOWN_REGVAL;
967 } else if (E->AM == AM65_ZP) {
968 switch (GetKnownReg (E->Chg & REG_ZP, In)) {
970 Out->Tmp1 = UNKNOWN_REGVAL;
973 Out->Ptr1Lo = UNKNOWN_REGVAL;
976 Out->Ptr1Hi = UNKNOWN_REGVAL;
979 Out->SRegLo = UNKNOWN_REGVAL;
982 Out->SRegHi = UNKNOWN_REGVAL;
985 } else if (E->AM == AM65_ZPX) {
986 /* Invalidates all ZP registers */
987 RC_InvalidateZP (Out);
992 /* We don't know the value of the carry bit */
993 if (E->AM == AM65_ACC) {
994 Out->RegA = UNKNOWN_REGVAL;
995 } else if (E->AM == AM65_ZP) {
996 switch (GetKnownReg (E->Chg & REG_ZP, In)) {
998 Out->Tmp1 = UNKNOWN_REGVAL;
1001 Out->Ptr1Lo = UNKNOWN_REGVAL;
1004 Out->Ptr1Hi = UNKNOWN_REGVAL;
1007 Out->SRegLo = UNKNOWN_REGVAL;
1010 Out->SRegHi = UNKNOWN_REGVAL;
1013 } else if (E->AM == AM65_ZPX) {
1014 /* Invalidates all ZP registers */
1015 RC_InvalidateZP (Out);
1026 /* We don't know the value of the carry bit */
1027 Out->RegA = UNKNOWN_REGVAL;
1040 if (E->AM == AM65_ZP) {
1041 switch (GetKnownReg (E->Chg & REG_ZP, 0)) {
1043 Out->Tmp1 = In->RegA;
1046 Out->Ptr1Lo = In->RegA;
1049 Out->Ptr1Hi = In->RegA;
1052 Out->SRegLo = In->RegA;
1055 Out->SRegHi = In->RegA;
1058 } else if (E->AM == AM65_ZPX) {
1059 /* Invalidates all ZP registers */
1060 RC_InvalidateZP (Out);
1065 if (E->AM == AM65_ZP) {
1066 switch (GetKnownReg (E->Chg & REG_ZP, 0)) {
1068 Out->Tmp1 = In->RegX;
1071 Out->Ptr1Lo = In->RegX;
1074 Out->Ptr1Hi = In->RegX;
1077 Out->SRegLo = In->RegX;
1080 Out->SRegHi = In->RegX;
1083 } else if (E->AM == AM65_ZPX) {
1084 /* Invalidates all ZP registers */
1085 RC_InvalidateZP (Out);
1090 if (E->AM == AM65_ZP) {
1091 switch (GetKnownReg (E->Chg & REG_ZP, 0)) {
1093 Out->Tmp1 = In->RegY;
1096 Out->Ptr1Lo = In->RegY;
1099 Out->Ptr1Hi = In->RegY;
1102 Out->SRegLo = In->RegY;
1105 Out->SRegHi = In->RegY;
1108 } else if (E->AM == AM65_ZPX) {
1109 /* Invalidates all ZP registers */
1110 RC_InvalidateZP (Out);
1115 if (E->AM == AM65_ZP) {
1116 switch (GetKnownReg (E->Chg & REG_ZP, 0)) {
1133 } else if (E->AM == AM65_ZPX) {
1134 /* Invalidates all ZP registers */
1135 RC_InvalidateZP (Out);
1140 Out->RegX = In->RegA;
1144 Out->RegY = In->RegA;
1148 if (E->AM == AM65_ZPX) {
1149 /* Invalidates all ZP registers */
1150 RC_InvalidateZP (Out);
1151 } else if (E->AM == AM65_ZP) {
1152 if (RegValIsKnown (In->RegA)) {
1153 switch (GetKnownReg (E->Chg & REG_ZP, In)) {
1155 Out->Tmp1 &= ~In->RegA;
1158 Out->Ptr1Lo &= ~In->RegA;
1161 Out->Ptr1Hi &= ~In->RegA;
1164 Out->SRegLo &= ~In->RegA;
1167 Out->SRegHi &= ~In->RegA;
1171 switch (GetKnownReg (E->Chg & REG_ZP, In)) {
1173 Out->Tmp1 = UNKNOWN_REGVAL;
1176 Out->Ptr1Lo = UNKNOWN_REGVAL;
1179 Out->Ptr1Hi = UNKNOWN_REGVAL;
1182 Out->SRegLo = UNKNOWN_REGVAL;
1185 Out->SRegHi = UNKNOWN_REGVAL;
1193 if (E->AM == AM65_ZPX) {
1194 /* Invalidates all ZP registers */
1195 RC_InvalidateZP (Out);
1196 } else if (E->AM == AM65_ZP) {
1197 if (RegValIsKnown (In->RegA)) {
1198 switch (GetKnownReg (E->Chg & REG_ZP, In)) {
1200 Out->Tmp1 |= In->RegA;
1203 Out->Ptr1Lo |= In->RegA;
1206 Out->Ptr1Hi |= In->RegA;
1209 Out->SRegLo |= In->RegA;
1212 Out->SRegHi |= In->RegA;
1216 switch (GetKnownReg (E->Chg & REG_ZP, In)) {
1218 Out->Tmp1 = UNKNOWN_REGVAL;
1221 Out->Ptr1Lo = UNKNOWN_REGVAL;
1224 Out->Ptr1Hi = UNKNOWN_REGVAL;
1227 Out->SRegLo = UNKNOWN_REGVAL;
1230 Out->SRegHi = UNKNOWN_REGVAL;
1238 Out->RegX = UNKNOWN_REGVAL;
1242 Out->RegA = In->RegX;
1249 Out->RegA = In->RegY;
1260 static char* RegInfoDesc (unsigned U, char* Buf)
1261 /* Return a string containing register info */
1265 strcat (Buf, U & REG_SREG_HI? "H" : "_");
1266 strcat (Buf, U & REG_SREG_LO? "L" : "_");
1267 strcat (Buf, U & REG_A? "A" : "_");
1268 strcat (Buf, U & REG_X? "X" : "_");
1269 strcat (Buf, U & REG_Y? "Y" : "_");
1270 strcat (Buf, U & REG_TMP1? "T1" : "__");
1271 strcat (Buf, U & REG_PTR1? "1" : "_");
1272 strcat (Buf, U & REG_PTR2? "2" : "_");
1273 strcat (Buf, U & REG_SAVE? "V" : "_");
1274 strcat (Buf, U & REG_SP? "S" : "_");
1281 static char* RegContentDesc (const RegContents* RC, char* Buf)
1282 /* Return a string containing register contents */
1286 if (RegValIsUnknown (RC->RegA)) {
1287 strcpy (B, "A:XX ");
1289 sprintf (B, "A:%02X ", RC->RegA);
1292 if (RegValIsUnknown (RC->RegX)) {
1293 strcpy (B, "X:XX ");
1295 sprintf (B, "X:%02X ", RC->RegX);
1298 if (RegValIsUnknown (RC->RegY)) {
1301 sprintf (B, "Y:%02X", RC->RegY);
1310 void CE_Output (const CodeEntry* E, FILE* F)
1311 /* Output the code entry to a file */
1317 /* If we have a label, print that */
1318 unsigned LabelCount = CollCount (&E->Labels);
1320 for (I = 0; I < LabelCount; ++I) {
1321 CL_Output (CollConstAt (&E->Labels, I), F);
1324 /* Get the opcode description */
1325 D = GetOPCDesc (E->OPC);
1327 /* Print the mnemonic */
1328 Chars = fprintf (F, "\t%s", D->Mnemo);
1330 /* Print the operand */
1340 Chars += fprintf (F, "%*sa", 9-Chars, "");
1346 Chars += fprintf (F, "%*s#%s", 9-Chars, "", E->Arg);
1352 /* zeropage and absolute */
1353 Chars += fprintf (F, "%*s%s", 9-Chars, "", E->Arg);
1358 /* zeropage,X and absolute,X */
1359 Chars += fprintf (F, "%*s%s,x", 9-Chars, "", E->Arg);
1364 Chars += fprintf (F, "%*s%s,y", 9-Chars, "", E->Arg);
1369 Chars += fprintf (F, "%*s(%s,x)", 9-Chars, "", E->Arg);
1374 Chars += fprintf (F, "%*s(%s),y", 9-Chars, "", E->Arg);
1379 Chars += fprintf (F, "%*s(%s)", 9-Chars, "", E->Arg);
1384 Target = E->JumpTo? E->JumpTo->Name : E->Arg;
1385 Chars += fprintf (F, "%*s%s", 9-Chars, "", Target);
1389 Internal ("Invalid addressing mode");
1393 /* Print usage info if requested by the debugging flag */
1398 "%*s; USE: %-12s CHG: %-12s SIZE: %u",
1400 RegInfoDesc (E->Use, Use),
1401 RegInfoDesc (E->Chg, Chg),
1409 RegContentDesc (&E->RI->In, RegIn),
1410 RegContentDesc (&E->RI->Out, RegOut));
1414 /* Terminate the line */