1 /* armrdi.c -- ARMulator RDI interface: ARM6 Instruction Emulator.
2 Copyright (C) 1994 Advanced RISC Machines Ltd.
4 This program is free software; you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation; either version 2 of the License, or
7 (at your option) any later version.
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
14 You should have received a copy of the GNU General Public License
15 along with this program; if not, write to the Free Software
16 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */
27 #include "communicate.h"
29 /***************************************************************************\
31 \***************************************************************************/
33 #define Watch_AnyRead (RDIWatch_ByteRead+RDIWatch_HalfRead+RDIWatch_WordRead)
34 #define Watch_AnyWrite (RDIWatch_ByteWrite+RDIWatch_HalfWrite+RDIWatch_WordWrite)
36 static unsigned FPRegsAddr; /* last known address of FPE regs */
37 #define FPESTART 0x2000L
38 #define FPEEND 0x8000L
40 #define IGNORE(d) (d = d)
42 #define TracePrint(s) \
43 if (rdi_log & 1) ARMul_DebugPrint s
48 static ARMul_State *state = NULL;
49 static unsigned BreaksSet; /* The number of breakpoints set */
51 static int rdi_log = 0; /* debugging ? */
53 #define LOWEST_RDI_LEVEL 0
54 #define HIGHEST_RDI_LEVEL 1
55 static int MYrdi_level = LOWEST_RDI_LEVEL;
57 typedef struct BreakNode BreakNode;
58 typedef struct WatchNode WatchNode;
61 { /* A breakpoint list node */
63 ARMword address; /* The address of this breakpoint */
64 unsigned type; /* The type of comparison */
65 ARMword bound; /* The other address for a range */
70 { /* A watchpoint list node */
72 ARMword address; /* The address of this watchpoint */
73 unsigned type; /* The type of comparison */
74 unsigned datatype; /* The type of access to watch for */
75 ARMword bound; /* The other address for a range */
78 BreakNode *BreakList = NULL;
79 WatchNode *WatchList = NULL;
82 ARMul_DebugPrint_i (const Dbg_HostosInterface * hostif, const char *format,
86 va_start (ap, format);
87 hostif->dbgprint (hostif->dbgarg, format, ap);
92 ARMul_DebugPrint (ARMul_State * state, const char *format, ...)
95 va_start (ap, format);
97 state->hostif->dbgprint (state->hostif->dbgarg, format, ap);
101 #define CONSOLE_PRINT_MAX_LEN 128
104 ARMul_ConsolePrint (ARMul_State * state, const char *format, ...)
108 char *str, buf[CONSOLE_PRINT_MAX_LEN];
112 va_start (ap, format);
113 vsprintf (buf, format, ap);
115 for (i = 0; buf[i]; i++); /* The string is i chars long */
120 MYwrite_char (kidmum[1], RDP_OSOp);
121 MYwrite_word (kidmum[1], SWI_Write0);
122 MYwrite_char (kidmum[1], OS_SendString);
123 MYwrite_char (kidmum[1], 32); /* Send string 32bytes at a time */
124 for (j = 0; j < 32; j++, str++)
125 MYwrite_char (kidmum[1], *str);
126 wait_for_osreply (&junk);
132 MYwrite_char (kidmum[1], RDP_OSOp);
133 MYwrite_word (kidmum[1], SWI_Write0);
134 MYwrite_char (kidmum[1], OS_SendString);
135 MYwrite_char (kidmum[1], (unsigned char) i); /* Send remainder of string */
136 for (j = 0; j < i; j++, str++)
137 MYwrite_char (kidmum[1], *str);
138 wait_for_osreply (&junk);
145 /* while ((ch=*str++) != 0) */
146 /* state->hostif->writec(state->hostif->hostosarg, ch); */
150 ARMul_DebugPause (ARMul_State * state)
153 state->hostif->dbgpause (state->hostif->dbgarg);
156 /***************************************************************************\
158 \***************************************************************************/
161 InitFail (int exitcode, char const *which)
163 ARMul_ConsolePrint (state, "%s interface failed to initialise. Exiting\n",
169 RDIInit (unsigned type)
173 state->CallDebug = state->MemReadDebug = state->MemWriteDebug = 0;
178 #define UNKNOWNPROC 0
187 Processor const p_arm2 = { "ARM2", ARM_Fix26_Prop };
188 Processor const p_arm2as = { "ARM2AS", ARM_Fix26_Prop };
189 Processor const p_arm61 = { "ARM61", ARM_Fix26_Prop };
190 Processor const p_arm3 = { "ARM3", ARM_Fix26_Prop };
191 Processor const p_arm6 = { "ARM6", ARM_Lock_Prop };
192 Processor const p_arm60 = { "ARM60", ARM_Lock_Prop };
193 Processor const p_arm600 = { "ARM600", ARM_Lock_Prop };
194 Processor const p_arm610 = { "ARM610", ARM_Lock_Prop };
195 Processor const p_arm620 = { "ARM620", ARM_Lock_Prop };
196 Processor const p_unknown = { "", 0 };
198 Processor const *const processors[] =
200 &p_arm6, /* default: must come first */
212 typedef struct ProcessorConfig ProcessorConfig;
213 struct ProcessorConfig
216 ProcessorConfig const *self;
218 Processor const *const *processors;
221 ProcessorConfig const processorconfig = {
222 {((((((long) 'x' << 8) | ' ') << 8) | 'c') << 8) | 'p',
223 ((((((long) 'u' << 8) | 's') << 8) | ' ') << 8) | 'x'},
230 RDI_open (unsigned type, const Dbg_ConfigBlock * config,
231 const Dbg_HostosInterface * hostif, struct Dbg_MCState *dbg_state)
232 /* Initialise everything */
234 int virgin = (state == NULL);
241 ARMul_DebugPrint_i (hostif, "RDI_open: type = %d\n", type);
243 ARMul_DebugPrint (state, "RDI_open: type = %d\n", type);
256 ARMul_EmulateInit ();
257 state = ARMul_NewState ();
258 state->hostif = hostif;
260 int req = config->processor;
261 unsigned processor = processors[req]->val;
262 ARMul_SelectProcessor (state, processor);
264 ARMul_ConsolePrint (state, "ARMulator V1.50, %s",
265 processors[req]->name);
267 if (ARMul_MemoryInit (state, config->memorysize) == FALSE)
268 InitFail (1, "Memory");
269 if (config->bytesex != RDISex_DontCare)
270 state->bigendSig = config->bytesex;
271 if (ARMul_CoProInit (state) == FALSE)
272 InitFail (2, "Co-Processor");
273 if (ARMul_OSInit (state) == FALSE)
274 InitFail (3, "Operating System");
280 { /* Reset the comms link */
281 /* what comms link ? */
283 if (virgin && (type & 1) == 0) /* Cold start */
284 ARMul_ConsolePrint (state, ", %s endian.\n",
285 state->bigendSig ? "Big" : "Little");
287 if (config->bytesex == RDISex_DontCare)
288 return (state->bigendSig ? RDIError_BigEndian : RDIError_LittleEndian);
290 return (RDIError_NoError);
293 /***************************************************************************\
295 \***************************************************************************/
300 TracePrint ((state, "RDI_close\n"));
301 ARMul_OSExit (state);
302 ARMul_CoProExit (state);
303 ARMul_MemoryExit (state);
304 return (RDIError_NoError);
307 /***************************************************************************\
309 \***************************************************************************/
312 RDI_read (ARMword source, void *dest, unsigned *nbytes)
315 char *memptr = (char *) dest;
317 TracePrint ((state, "RDI_read: source=%.8lx dest=%p nbytes=%.8x\n",
318 source, dest, *nbytes));
320 for (i = 0; i < *nbytes; i++)
321 *memptr++ = (char) ARMul_ReadByte (state, source++);
324 state->abortSig = LOW;
325 return (RDIError_DataAbort);
327 return (RDIError_NoError);
330 /***************************************************************************\
332 \***************************************************************************/
335 RDI_write (const void *source, ARMword dest, unsigned *nbytes)
338 char *memptr = (char *) source;
340 TracePrint ((state, "RDI_write: source=%p dest=%.8lx nbytes=%.8x\n",
341 source, dest, *nbytes));
343 for (i = 0; i < *nbytes; i++)
344 ARMul_WriteByte (state, (ARMword) dest++, (ARMword) * memptr++);
348 state->abortSig = LOW;
349 return (RDIError_DataAbort);
351 return (RDIError_NoError);
354 /***************************************************************************\
356 \***************************************************************************/
359 RDI_CPUread (unsigned mode, unsigned long mask, ARMword buffer[])
363 if (mode == RDIMode_Curr)
364 mode = (unsigned) (ARMul_GetCPSR (state) & MODEBITS);
366 for (upto = 0, i = 0; i < 15; i++)
367 if (mask & (1L << i))
369 buffer[upto++] = ARMul_GetReg (state, mode, i);
372 if (mask & RDIReg_R15)
374 buffer[upto++] = ARMul_GetR15 (state);
377 if (mask & RDIReg_PC)
379 buffer[upto++] = ARMul_GetPC (state);
382 if (mask & RDIReg_CPSR)
383 buffer[upto++] = ARMul_GetCPSR (state);
385 if (mask & RDIReg_SPSR)
386 buffer[upto++] = ARMul_GetSPSR (state, mode);
388 TracePrint ((state, "RDI_CPUread: mode=%.8x mask=%.8lx", mode, mask));
392 for (upto = 0, i = 0; i <= 20; i++)
393 if (mask & (1L << i))
395 ARMul_DebugPrint (state, "%c%.8lx", upto % 4 == 0 ? '\n' : ' ',
399 ARMul_DebugPrint (state, "\n");
403 return (RDIError_NoError);
406 /***************************************************************************\
408 \***************************************************************************/
411 RDI_CPUwrite (unsigned mode, unsigned long mask, ARMword const buffer[])
416 TracePrint ((state, "RDI_CPUwrite: mode=%.8x mask=%.8lx", mode, mask));
420 for (upto = 0, i = 0; i <= 20; i++)
421 if (mask & (1L << i))
423 ARMul_DebugPrint (state, "%c%.8lx", upto % 4 == 0 ? '\n' : ' ',
427 ARMul_DebugPrint (state, "\n");
431 if (mode == RDIMode_Curr)
432 mode = (unsigned) (ARMul_GetCPSR (state) & MODEBITS);
434 for (upto = 0, i = 0; i < 15; i++)
435 if (mask & (1L << i))
436 ARMul_SetReg (state, mode, i, buffer[upto++]);
438 if (mask & RDIReg_R15)
439 ARMul_SetR15 (state, buffer[upto++]);
441 if (mask & RDIReg_PC)
444 ARMul_SetPC (state, buffer[upto++]);
446 if (mask & RDIReg_CPSR)
447 ARMul_SetCPSR (state, buffer[upto++]);
449 if (mask & RDIReg_SPSR)
450 ARMul_SetSPSR (state, mode, buffer[upto++]);
452 return (RDIError_NoError);
455 /***************************************************************************\
457 \***************************************************************************/
460 RDI_CPread (unsigned CPnum, unsigned long mask, ARMword buffer[])
462 ARMword fpregsaddr, word[4];
467 if (CPnum != 1 && CPnum != 2)
469 unsigned char const *rmap = state->CPRegWords[CPnum];
471 return (RDIError_UnknownCoPro);
472 for (upto = 0, r = 0; r < rmap[-1]; r++)
473 if (mask & (1L << r))
475 (void) state->CPRead[CPnum] (state, r, &buffer[upto]);
478 TracePrint ((state, "RDI_CPread: CPnum=%d mask=%.8lx", CPnum, mask));
483 for (upto = 0, r = 0; r < rmap[-1]; r++)
484 if (mask & (1L << r))
487 ARMul_DebugPrint (state, "%c%2d",
488 (w >= 4 ? (w = 0, '\n') : ' '), r);
491 ARMul_DebugPrint (state, " %.8lx", buffer[upto++]);
495 ARMul_DebugPrint (state, "\n");
498 return RDIError_NoError;
502 return RDIError_UnknownCoPro;
507 fpregsaddr = ARMul_ReadWord (state, 4L);
508 if ((fpregsaddr & 0xff800000) != 0xea000000) /* Must be a forward branch */
509 return RDIError_UnknownCoPro;
510 fpregsaddr = ((fpregsaddr & 0xffffff) << 2) + 8; /* address in __fp_decode - 4 */
511 if ((fpregsaddr < FPESTART) || (fpregsaddr >= FPEEND))
512 return RDIError_UnknownCoPro;
513 fpregsaddr = ARMul_ReadWord (state, fpregsaddr); /* pointer to fp registers */
514 FPRegsAddr = fpregsaddr;
517 fpregsaddr = FPRegsAddr;
520 return RDIError_UnknownCoPro;
521 for (upto = 0, r = 0; r < 8; r++)
522 if (mask & (1L << r))
524 for (w = 0; w < 4; w++)
526 ARMul_ReadWord (state,
527 fpregsaddr + (ARMword) r * 16 + (ARMword) w * 4);
528 switch ((int) (word[3] >> 29))
533 case 6: /* its unpacked, convert to extended */
534 buffer[upto++] = 2; /* mark as extended */
535 buffer[upto++] = (word[3] & 0x7fff) | (word[0] & 0x80000000); /* exp and sign */
536 buffer[upto++] = word[1]; /* mantissa 1 */
537 buffer[upto++] = word[2]; /* mantissa 2 */
539 case 1: /* packed single */
540 buffer[upto++] = 0; /* mark as single */
541 buffer[upto++] = word[0]; /* sign, exp and mantissa */
542 buffer[upto++] = word[1]; /* padding */
543 buffer[upto++] = word[2]; /* padding */
545 case 3: /* packed double */
546 buffer[upto++] = 1; /* mark as double */
547 buffer[upto++] = word[0]; /* sign, exp and mantissa1 */
548 buffer[upto++] = word[1]; /* mantissa 2 */
549 buffer[upto++] = word[2]; /* padding */
551 case 5: /* packed extended */
552 buffer[upto++] = 2; /* mark as extended */
553 buffer[upto++] = word[0]; /* sign and exp */
554 buffer[upto++] = word[1]; /* mantissa 1 */
555 buffer[upto++] = word[2]; /* mantissa 2 */
557 case 7: /* packed decimal */
558 buffer[upto++] = 3; /* mark as packed decimal */
559 buffer[upto++] = word[0]; /* sign, exp and mantissa1 */
560 buffer[upto++] = word[1]; /* mantissa 2 */
561 buffer[upto++] = word[2]; /* mantissa 3 */
565 if (mask & (1L << r))
566 buffer[upto++] = ARMul_ReadWord (state, fpregsaddr + 128); /* fpsr */
567 if (mask & (1L << (r + 1)))
568 buffer[upto++] = 0; /* fpcr */
570 TracePrint ((state, "RDI_CPread: CPnum=%d mask=%.8lx\n", CPnum, mask));
574 for (upto = 0, r = 0; r < 9; r++)
575 if (mask & (1L << r))
579 ARMul_DebugPrint (state, "%08lx ", buffer[upto++]);
580 ARMul_DebugPrint (state, "%08lx ", buffer[upto++]);
581 ARMul_DebugPrint (state, "%08lx ", buffer[upto++]);
583 ARMul_DebugPrint (state, "%08lx\n", buffer[upto++]);
585 ARMul_DebugPrint (state, "\n");
588 return (RDIError_NoError);
592 /***************************************************************************\
594 \***************************************************************************/
597 RDI_CPwrite (unsigned CPnum, unsigned long mask, ARMword const buffer[])
603 if (CPnum != 1 && CPnum != 2)
605 unsigned char const *rmap = state->CPRegWords[CPnum];
607 return (RDIError_UnknownCoPro);
608 TracePrint ((state, "RDI_CPwrite: CPnum=%d mask=%.8lx", CPnum, mask));
613 for (upto = 0, r = 0; r < rmap[-1]; r++)
614 if (mask & (1L << r))
617 ARMul_DebugPrint (state, "%c%2d",
618 (w >= 4 ? (w = 0, '\n') : ' '), r);
621 ARMul_DebugPrint (state, " %.8lx", buffer[upto++]);
625 ARMul_DebugPrint (state, "\n");
628 for (upto = 0, r = 0; r < rmap[-1]; r++)
629 if (mask & (1L << r))
631 (void) state->CPWrite[CPnum] (state, r, &buffer[upto]);
634 return RDIError_NoError;
638 return RDIError_UnknownCoPro;
641 TracePrint ((state, "RDI_CPwrite: CPnum=%d mask=%.8lx", CPnum, mask));
645 for (upto = 0, r = 0; r < 9; r++)
646 if (mask & (1L << r))
650 ARMul_DebugPrint (state, "%08lx ", buffer[upto++]);
651 ARMul_DebugPrint (state, "%08lx ", buffer[upto++]);
652 ARMul_DebugPrint (state, "%08lx ", buffer[upto++]);
654 ARMul_DebugPrint (state, "%08lx\n", buffer[upto++]);
656 ARMul_DebugPrint (state, "\n");
662 fpregsaddr = ARMul_ReadWord (state, 4L);
663 if ((fpregsaddr & 0xff800000) != 0xea000000) /* Must be a forward branch */
664 return RDIError_UnknownCoPro;
665 fpregsaddr = ((fpregsaddr & 0xffffff) << 2) + 8; /* address in __fp_decode - 4 */
666 if ((fpregsaddr < FPESTART) || (fpregsaddr >= FPEEND))
667 return RDIError_UnknownCoPro;
668 fpregsaddr = ARMul_ReadWord (state, fpregsaddr); /* pointer to fp registers */
669 FPRegsAddr = fpregsaddr;
672 fpregsaddr = FPRegsAddr;
675 return RDIError_UnknownCoPro;
676 for (upto = 0, r = 0; r < 8; r++)
677 if (mask & (1L << r))
679 ARMul_WriteWord (state, fpregsaddr + (ARMword) r * 16,
681 ARMul_WriteWord (state, fpregsaddr + (ARMword) r * 16 + 4,
683 ARMul_WriteWord (state, fpregsaddr + (ARMword) r * 16 + 8,
685 ARMul_WriteWord (state, fpregsaddr + (ARMword) r * 16 + 12,
686 (buffer[upto] * 2 + 1) << 29); /* mark type */
689 if (mask & (1L << r))
690 ARMul_WriteWord (state, fpregsaddr + 128, buffer[upto++]); /* fpsr */
691 return (RDIError_NoError);
696 deletebreaknode (BreakNode ** prevp)
698 BreakNode *p = *prevp;
700 ARMul_WriteWord (state, p->address, p->inst);
707 removebreak (ARMword address, unsigned type)
709 BreakNode *p, **prevp = &BreakList;
710 for (; (p = *prevp) != NULL; prevp = &p->next)
711 if (p->address == address && p->type == type)
713 deletebreaknode (prevp);
719 /* This routine installs a breakpoint into the breakpoint table */
722 installbreak (ARMword address, unsigned type, ARMword bound)
724 BreakNode *p = (BreakNode *) malloc (sizeof (BreakNode));
727 p->address = address;
730 p->inst = ARMul_ReadWord (state, address);
731 ARMul_WriteWord (state, address, 0xee000000L);
735 /***************************************************************************\
737 \***************************************************************************/
740 RDI_setbreak (ARMword address, unsigned type, ARMword bound,
741 PointHandle * handle)
744 TracePrint ((state, "RDI_setbreak: address=%.8lx type=%d bound=%.8lx\n",
745 address, type, bound));
747 removebreak (address, type);
748 p = installbreak (address, type, bound);
751 *handle = (PointHandle) p;
752 TracePrint ((state, " returns %.8lx\n", *handle));
753 return RDIError_NoError;
756 /***************************************************************************\
758 \***************************************************************************/
761 RDI_clearbreak (PointHandle handle)
763 TracePrint ((state, "RDI_clearbreak: address=%.8lx\n", handle));
765 BreakNode *p, **prevp = &BreakList;
766 for (; (p = *prevp) != NULL; prevp = &p->next)
767 if (p == (BreakNode *) handle)
770 return RDIError_NoSuchPoint;
771 deletebreaknode (prevp);
772 return RDIError_NoError;
776 /***************************************************************************\
777 * Internal functions for breakpoint table manipulation *
778 \***************************************************************************/
781 deletewatchnode (WatchNode ** prevp)
783 WatchNode *p = *prevp;
784 if (p->datatype & Watch_AnyRead)
785 state->MemReadDebug--;
786 if (p->datatype & Watch_AnyWrite)
787 state->MemWriteDebug--;
793 removewatch (ARMword address, unsigned type)
795 WatchNode *p, **prevp = &WatchList;
796 for (; (p = *prevp) != NULL; prevp = &p->next)
797 if (p->address == address && p->type == type)
798 { /* found a match */
799 deletewatchnode (prevp);
802 return FALSE; /* never found a match */
806 installwatch (ARMword address, unsigned type, unsigned datatype,
809 WatchNode *p = (WatchNode *) malloc (sizeof (WatchNode));
812 p->address = address;
814 p->datatype = datatype;
819 /***************************************************************************\
821 \***************************************************************************/
824 RDI_setwatch (ARMword address, unsigned type, unsigned datatype,
825 ARMword bound, PointHandle * handle)
830 "RDI_setwatch: address=%.8lx type=%d datatype=%d bound=%.8lx",
831 address, type, datatype, bound));
833 if (!state->CanWatch)
834 return RDIError_UnimplementedMessage;
836 removewatch (address, type);
837 p = installwatch (address, type, datatype, bound);
838 if (datatype & Watch_AnyRead)
839 state->MemReadDebug++;
840 if (datatype & Watch_AnyWrite)
841 state->MemWriteDebug++;
842 *handle = (PointHandle) p;
843 TracePrint ((state, " returns %.8lx\n", *handle));
844 return RDIError_NoError;
847 /***************************************************************************\
849 \***************************************************************************/
852 RDI_clearwatch (PointHandle handle)
854 TracePrint ((state, "RDI_clearwatch: address=%.8lx\n", handle));
856 WatchNode *p, **prevp = &WatchList;
857 for (; (p = *prevp) != NULL; prevp = &p->next)
858 if (p == (WatchNode *) handle)
861 return RDIError_NoSuchPoint;
862 deletewatchnode (prevp);
863 return RDIError_NoError;
867 /***************************************************************************\
869 \***************************************************************************/
872 RDI_execute (PointHandle * handle)
874 TracePrint ((state, "RDI_execute\n"));
880 state->EndCondition = RDIError_NoError;
881 state->StopHandle = 0;
883 ARMul_DoProg (state);
885 *handle = state->StopHandle;
886 state->Reg[15] -= 8; /* undo the pipeline */
890 state->Debug = FALSE;
892 return (state->EndCondition);
895 /***************************************************************************\
897 \***************************************************************************/
900 RDI_step (unsigned ninstr, PointHandle * handle)
903 TracePrint ((state, "RDI_step\n"));
905 return RDIError_UnimplementedMessage;
911 state->EndCondition = RDIError_NoError;
912 state->StopHandle = 0;
913 ARMul_DoInstr (state);
914 *handle = state->StopHandle;
915 state->Reg[15] -= 8; /* undo the pipeline */
919 state->Debug = FALSE;
921 return (state->EndCondition);
924 /***************************************************************************\
926 \***************************************************************************/
929 RDI_info (unsigned type, ARMword * arg1, ARMword * arg2)
934 TracePrint ((state, "RDI_Info_Target\n"));
935 /* Emulator, speed 10**5 IPS */
936 *arg1 = 5 | HIGHEST_RDI_LEVEL << 5 | LOWEST_RDI_LEVEL << 8;
938 return RDIError_NoError;
942 ARMword n = RDIPointCapability_Comparison | RDIPointCapability_Range |
943 RDIPointCapability_Mask | RDIPointCapability_Status;
944 TracePrint ((state, "RDI_Info_Points\n"));
946 n |= (Watch_AnyRead + Watch_AnyWrite) << 2;
948 return RDIError_NoError;
952 TracePrint ((state, "RDI_Info_Step\n"));
953 *arg1 = RDIStep_Single;
954 return RDIError_NoError;
957 TracePrint ((state, "RDI_Info_MMU\n"));
959 return RDIError_NoError;
962 TracePrint ((state, "RDISignal_Stop\n"));
964 state->EndCondition = RDIError_UserInterrupt;
965 return RDIError_NoError;
967 case RDIVector_Catch:
968 TracePrint ((state, "RDIVector_Catch %.8lx\n", *arg1));
969 state->VectorCatch = (unsigned) *arg1;
970 return RDIError_NoError;
973 TracePrint ((state, "RDI_Set_Cmdline %s\n", (char *) arg1));
975 (char *) malloc ((unsigned) strlen ((char *) arg1) + 1);
976 (void) strcpy (state->CommandLine, (char *) arg1);
977 return RDIError_NoError;
980 TracePrint ((state, "RDI_Info_Cycles\n"));
982 arg1[1] = state->NumInstrs;
984 arg1[3] = state->NumScycles;
986 arg1[5] = state->NumNcycles;
988 arg1[7] = state->NumIcycles;
990 arg1[9] = state->NumCcycles;
992 arg1[11] = state->NumFcycles;
993 return RDIError_NoError;
996 *arg1 = ARMul_OSLastErrorP (state);
997 TracePrint ((state, "RDI_ErrorP returns %ld\n", *arg1));
998 return RDIError_NoError;
1000 case RDIInfo_DescribeCoPro:
1002 int cpnum = *(int *) arg1;
1003 struct Dbg_CoProDesc *cpd = (struct Dbg_CoProDesc *) arg2;
1005 unsigned char const *map = state->CPRegWords[cpnum];
1007 return RDIError_UnknownCoPro;
1008 for (i = 0; i < cpd->entries; i++)
1010 unsigned r, w = cpd->regdesc[i].nbytes / sizeof (ARMword);
1011 for (r = cpd->regdesc[i].rmin; r <= cpd->regdesc[i].rmax; r++)
1013 return RDIError_BadCoProState;
1015 return RDIError_NoError;
1018 case RDIInfo_RequestCoProDesc:
1020 int cpnum = *(int *) arg1;
1021 struct Dbg_CoProDesc *cpd = (struct Dbg_CoProDesc *) arg2;
1022 int i = -1, lastw = -1, r;
1023 unsigned char const *map;
1024 if ((unsigned) cpnum >= 16)
1025 return RDIError_UnknownCoPro;
1026 map = state->CPRegWords[cpnum];
1028 return RDIError_UnknownCoPro;
1029 for (r = 0; r < map[-1]; r++)
1033 cpd->regdesc[i].rmax = r;
1036 if (++i >= cpd->entries)
1037 return RDIError_BufferFull;
1038 cpd->regdesc[i].rmax = cpd->regdesc[i].rmin = r;
1039 cpd->regdesc[i].nbytes = words * sizeof (ARMword);
1040 cpd->regdesc[i].access =
1041 Dbg_Access_Readable + Dbg_Access_Writable;
1044 cpd->entries = i + 1;
1045 return RDIError_NoError;
1049 *arg1 = (ARMword) rdi_log;
1050 return RDIError_NoError;
1052 case RDIInfo_SetLog:
1053 rdi_log = (int) *arg1;
1054 return RDIError_NoError;
1057 return RDIError_NoError;
1059 case RDIPointStatus_Watch:
1061 WatchNode *p, *handle = (WatchNode *) * arg1;
1062 for (p = WatchList; p != NULL; p = p->next)
1067 return RDIError_NoError;
1069 return RDIError_NoSuchPoint;
1072 case RDIPointStatus_Break:
1074 BreakNode *p, *handle = (BreakNode *) * arg1;
1075 for (p = BreakList; p != NULL; p = p->next)
1080 return RDIError_NoError;
1082 return RDIError_NoSuchPoint;
1085 case RDISet_RDILevel:
1086 if (*arg1 < LOWEST_RDI_LEVEL || *arg1 > HIGHEST_RDI_LEVEL)
1087 return RDIError_IncompatibleRDILevels;
1088 MYrdi_level = *arg1;
1089 return RDIError_NoError;
1092 return RDIError_UnimplementedMessage;
1097 /***************************************************************************\
1098 * The emulator calls this routine at the beginning of every cycle when the *
1099 * CallDebug flag is set. The second parameter passed is the address of the *
1100 * currently executing instruction (i.e Program Counter - 8), the third *
1101 * parameter is the instruction being executed. *
1102 \***************************************************************************/
1105 ARMul_Debug (ARMul_State * state, ARMword pc, ARMword instr)
1108 if (state->EndCondition == RDIError_UserInterrupt)
1110 TracePrint ((state, "User interrupt at %.8lx\n", pc));
1112 state->Emulate = STOP;
1116 BreakNode *p = BreakList;
1117 for (; p != NULL; p = p->next)
1122 if (pc == p->address)
1126 if (pc > p->address)
1130 if (pc >= p->address)
1134 if (pc < p->address)
1138 if (pc <= p->address)
1142 if (p->address <= pc && pc < p->address + p->bound)
1146 if (p->address > pc || pc >= p->address + p->bound)
1150 if ((pc & p->bound) == p->address)
1155 TracePrint ((state, "Breakpoint reached at %.8lx\n", pc));
1156 state->EndCondition = RDIError_BreakpointReached;
1157 state->Emulate = STOP;
1158 state->StopHandle = (ARMword) p;
1166 ARMul_CheckWatch (ARMul_State * state, ARMword addr, int access)
1169 for (p = WatchList; p != NULL; p = p->next)
1170 if (p->datatype & access)
1175 if (addr == p->address)
1179 if (addr > p->address)
1183 if (addr >= p->address)
1187 if (addr < p->address)
1191 if (addr <= p->address)
1195 if (p->address <= addr && addr < p->address + p->bound)
1199 if (p->address > addr || addr >= p->address + p->bound)
1203 if ((addr & p->bound) == p->address)
1208 TracePrint ((state, "Watchpoint at %.8lx accessed\n", addr));
1209 state->EndCondition = RDIError_WatchpointAccessed;
1210 state->Emulate = STOP;
1211 state->StopHandle = (ARMword) p;
1216 static RDI_NameList const *
1219 return (RDI_NameList const *) &processorconfig.count;
1222 const struct RDIProcVec armul_rdi = {
1242 0, /*loadconfigdata */
1243 0, /*selectconfig */