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 3 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, see <http://www.gnu.org/licenses/>. */
26 #include "communicate.h"
28 /***************************************************************************\
30 \***************************************************************************/
32 #define Watch_AnyRead (RDIWatch_ByteRead+RDIWatch_HalfRead+RDIWatch_WordRead)
33 #define Watch_AnyWrite (RDIWatch_ByteWrite+RDIWatch_HalfWrite+RDIWatch_WordWrite)
35 static unsigned FPRegsAddr; /* last known address of FPE regs */
36 #define FPESTART 0x2000L
37 #define FPEEND 0x8000L
39 #define IGNORE(d) (d = d)
41 #define TracePrint(s) \
42 if (rdi_log & 1) ARMul_DebugPrint s
47 static ARMul_State *state = NULL;
48 static unsigned BreaksSet; /* The number of breakpoints set */
50 static int rdi_log = 0; /* debugging ? */
52 #define LOWEST_RDI_LEVEL 0
53 #define HIGHEST_RDI_LEVEL 1
54 static int MYrdi_level = LOWEST_RDI_LEVEL;
56 typedef struct BreakNode BreakNode;
57 typedef struct WatchNode WatchNode;
60 { /* A breakpoint list node */
62 ARMword address; /* The address of this breakpoint */
63 unsigned type; /* The type of comparison */
64 ARMword bound; /* The other address for a range */
69 { /* A watchpoint list node */
71 ARMword address; /* The address of this watchpoint */
72 unsigned type; /* The type of comparison */
73 unsigned datatype; /* The type of access to watch for */
74 ARMword bound; /* The other address for a range */
77 BreakNode *BreakList = NULL;
78 WatchNode *WatchList = NULL;
81 ARMul_DebugPrint_i (const Dbg_HostosInterface * hostif, const char *format,
85 va_start (ap, format);
86 hostif->dbgprint (hostif->dbgarg, format, ap);
91 ARMul_DebugPrint (ARMul_State * state, const char *format, ...)
94 va_start (ap, format);
96 state->hostif->dbgprint (state->hostif->dbgarg, format, ap);
100 #define CONSOLE_PRINT_MAX_LEN 128
103 ARMul_ConsolePrint (ARMul_State * state, const char *format, ...)
107 char *str, buf[CONSOLE_PRINT_MAX_LEN];
111 va_start (ap, format);
112 vsprintf (buf, format, ap);
114 for (i = 0; buf[i]; i++); /* The string is i chars long */
119 MYwrite_char (kidmum[1], RDP_OSOp);
120 MYwrite_word (kidmum[1], SWI_Write0);
121 MYwrite_char (kidmum[1], OS_SendString);
122 MYwrite_char (kidmum[1], 32); /* Send string 32bytes at a time */
123 for (j = 0; j < 32; j++, str++)
124 MYwrite_char (kidmum[1], *str);
125 wait_for_osreply (&junk);
131 MYwrite_char (kidmum[1], RDP_OSOp);
132 MYwrite_word (kidmum[1], SWI_Write0);
133 MYwrite_char (kidmum[1], OS_SendString);
134 MYwrite_char (kidmum[1], (unsigned char) i); /* Send remainder of string */
135 for (j = 0; j < i; j++, str++)
136 MYwrite_char (kidmum[1], *str);
137 wait_for_osreply (&junk);
144 /* while ((ch=*str++) != 0) */
145 /* state->hostif->writec(state->hostif->hostosarg, ch); */
149 ARMul_DebugPause (ARMul_State * state)
152 state->hostif->dbgpause (state->hostif->dbgarg);
155 /***************************************************************************\
157 \***************************************************************************/
160 InitFail (int exitcode, char const *which)
162 ARMul_ConsolePrint (state, "%s interface failed to initialise. Exiting\n",
168 RDIInit (unsigned type)
172 state->CallDebug = state->MemReadDebug = state->MemWriteDebug = 0;
177 #define UNKNOWNPROC 0
186 Processor const p_arm2 = { "ARM2", ARM_Fix26_Prop };
187 Processor const p_arm2as = { "ARM2AS", ARM_Fix26_Prop };
188 Processor const p_arm61 = { "ARM61", ARM_Fix26_Prop };
189 Processor const p_arm3 = { "ARM3", ARM_Fix26_Prop };
190 Processor const p_arm6 = { "ARM6", ARM_Lock_Prop };
191 Processor const p_arm60 = { "ARM60", ARM_Lock_Prop };
192 Processor const p_arm600 = { "ARM600", ARM_Lock_Prop };
193 Processor const p_arm610 = { "ARM610", ARM_Lock_Prop };
194 Processor const p_arm620 = { "ARM620", ARM_Lock_Prop };
195 Processor const p_unknown = { "", 0 };
197 Processor const *const processors[] =
199 &p_arm6, /* default: must come first */
211 typedef struct ProcessorConfig ProcessorConfig;
212 struct ProcessorConfig
215 ProcessorConfig const *self;
217 Processor const *const *processors;
220 ProcessorConfig const processorconfig = {
221 {((((((long) 'x' << 8) | ' ') << 8) | 'c') << 8) | 'p',
222 ((((((long) 'u' << 8) | 's') << 8) | ' ') << 8) | 'x'},
229 RDI_open (unsigned type, const Dbg_ConfigBlock * config,
230 const Dbg_HostosInterface * hostif, struct Dbg_MCState *dbg_state)
231 /* Initialise everything */
233 int virgin = (state == NULL);
240 ARMul_DebugPrint_i (hostif, "RDI_open: type = %d\n", type);
242 ARMul_DebugPrint (state, "RDI_open: type = %d\n", type);
255 ARMul_EmulateInit ();
256 state = ARMul_NewState ();
257 state->hostif = hostif;
259 int req = config->processor;
260 unsigned processor = processors[req]->val;
261 ARMul_SelectProcessor (state, processor);
263 ARMul_ConsolePrint (state, "ARMulator V1.50, %s",
264 processors[req]->name);
266 if (ARMul_MemoryInit (state, config->memorysize) == FALSE)
267 InitFail (1, "Memory");
268 if (config->bytesex != RDISex_DontCare)
269 state->bigendSig = config->bytesex;
270 if (ARMul_CoProInit (state) == FALSE)
271 InitFail (2, "Co-Processor");
272 if (ARMul_OSInit (state) == FALSE)
273 InitFail (3, "Operating System");
279 { /* Reset the comms link */
280 /* what comms link ? */
282 if (virgin && (type & 1) == 0) /* Cold start */
283 ARMul_ConsolePrint (state, ", %s endian.\n",
284 state->bigendSig ? "Big" : "Little");
286 if (config->bytesex == RDISex_DontCare)
287 return (state->bigendSig ? RDIError_BigEndian : RDIError_LittleEndian);
289 return (RDIError_NoError);
292 /***************************************************************************\
294 \***************************************************************************/
299 TracePrint ((state, "RDI_close\n"));
300 ARMul_OSExit (state);
301 ARMul_CoProExit (state);
302 ARMul_MemoryExit (state);
303 return (RDIError_NoError);
306 /***************************************************************************\
308 \***************************************************************************/
311 RDI_read (ARMword source, void *dest, unsigned *nbytes)
314 char *memptr = (char *) dest;
316 TracePrint ((state, "RDI_read: source=%.8lx dest=%p nbytes=%.8x\n",
317 source, dest, *nbytes));
319 for (i = 0; i < *nbytes; i++)
320 *memptr++ = (char) ARMul_ReadByte (state, source++);
323 state->abortSig = LOW;
324 return (RDIError_DataAbort);
326 return (RDIError_NoError);
329 /***************************************************************************\
331 \***************************************************************************/
334 RDI_write (const void *source, ARMword dest, unsigned *nbytes)
337 char *memptr = (char *) source;
339 TracePrint ((state, "RDI_write: source=%p dest=%.8lx nbytes=%.8x\n",
340 source, dest, *nbytes));
342 for (i = 0; i < *nbytes; i++)
343 ARMul_WriteByte (state, (ARMword) dest++, (ARMword) * memptr++);
347 state->abortSig = LOW;
348 return (RDIError_DataAbort);
350 return (RDIError_NoError);
353 /***************************************************************************\
355 \***************************************************************************/
358 RDI_CPUread (unsigned mode, unsigned long mask, ARMword buffer[])
362 if (mode == RDIMode_Curr)
363 mode = (unsigned) (ARMul_GetCPSR (state) & MODEBITS);
365 for (upto = 0, i = 0; i < 15; i++)
366 if (mask & (1L << i))
368 buffer[upto++] = ARMul_GetReg (state, mode, i);
371 if (mask & RDIReg_R15)
373 buffer[upto++] = ARMul_GetR15 (state);
376 if (mask & RDIReg_PC)
378 buffer[upto++] = ARMul_GetPC (state);
381 if (mask & RDIReg_CPSR)
382 buffer[upto++] = ARMul_GetCPSR (state);
384 if (mask & RDIReg_SPSR)
385 buffer[upto++] = ARMul_GetSPSR (state, mode);
387 TracePrint ((state, "RDI_CPUread: mode=%.8x mask=%.8lx", mode, mask));
391 for (upto = 0, i = 0; i <= 20; i++)
392 if (mask & (1L << i))
394 ARMul_DebugPrint (state, "%c%.8lx", upto % 4 == 0 ? '\n' : ' ',
398 ARMul_DebugPrint (state, "\n");
402 return (RDIError_NoError);
405 /***************************************************************************\
407 \***************************************************************************/
410 RDI_CPUwrite (unsigned mode, unsigned long mask, ARMword const buffer[])
415 TracePrint ((state, "RDI_CPUwrite: mode=%.8x mask=%.8lx", mode, mask));
419 for (upto = 0, i = 0; i <= 20; i++)
420 if (mask & (1L << i))
422 ARMul_DebugPrint (state, "%c%.8lx", upto % 4 == 0 ? '\n' : ' ',
426 ARMul_DebugPrint (state, "\n");
430 if (mode == RDIMode_Curr)
431 mode = (unsigned) (ARMul_GetCPSR (state) & MODEBITS);
433 for (upto = 0, i = 0; i < 15; i++)
434 if (mask & (1L << i))
435 ARMul_SetReg (state, mode, i, buffer[upto++]);
437 if (mask & RDIReg_R15)
438 ARMul_SetR15 (state, buffer[upto++]);
440 if (mask & RDIReg_PC)
443 ARMul_SetPC (state, buffer[upto++]);
445 if (mask & RDIReg_CPSR)
446 ARMul_SetCPSR (state, buffer[upto++]);
448 if (mask & RDIReg_SPSR)
449 ARMul_SetSPSR (state, mode, buffer[upto++]);
451 return (RDIError_NoError);
454 /***************************************************************************\
456 \***************************************************************************/
459 RDI_CPread (unsigned CPnum, unsigned long mask, ARMword buffer[])
461 ARMword fpregsaddr, word[4];
466 if (CPnum != 1 && CPnum != 2)
468 unsigned char const *rmap = state->CPRegWords[CPnum];
470 return (RDIError_UnknownCoPro);
471 for (upto = 0, r = 0; r < rmap[-1]; r++)
472 if (mask & (1L << r))
474 (void) state->CPRead[CPnum] (state, r, &buffer[upto]);
477 TracePrint ((state, "RDI_CPread: CPnum=%d mask=%.8lx", CPnum, mask));
482 for (upto = 0, r = 0; r < rmap[-1]; r++)
483 if (mask & (1L << r))
486 ARMul_DebugPrint (state, "%c%2d",
487 (w >= 4 ? (w = 0, '\n') : ' '), r);
490 ARMul_DebugPrint (state, " %.8lx", buffer[upto++]);
494 ARMul_DebugPrint (state, "\n");
497 return RDIError_NoError;
501 return RDIError_UnknownCoPro;
506 fpregsaddr = ARMul_ReadWord (state, 4L);
507 if ((fpregsaddr & 0xff800000) != 0xea000000) /* Must be a forward branch */
508 return RDIError_UnknownCoPro;
509 fpregsaddr = ((fpregsaddr & 0xffffff) << 2) + 8; /* address in __fp_decode - 4 */
510 if ((fpregsaddr < FPESTART) || (fpregsaddr >= FPEEND))
511 return RDIError_UnknownCoPro;
512 fpregsaddr = ARMul_ReadWord (state, fpregsaddr); /* pointer to fp registers */
513 FPRegsAddr = fpregsaddr;
516 fpregsaddr = FPRegsAddr;
519 return RDIError_UnknownCoPro;
520 for (upto = 0, r = 0; r < 8; r++)
521 if (mask & (1L << r))
523 for (w = 0; w < 4; w++)
525 ARMul_ReadWord (state,
526 fpregsaddr + (ARMword) r * 16 + (ARMword) w * 4);
527 switch ((int) (word[3] >> 29))
532 case 6: /* its unpacked, convert to extended */
533 buffer[upto++] = 2; /* mark as extended */
534 buffer[upto++] = (word[3] & 0x7fff) | (word[0] & 0x80000000); /* exp and sign */
535 buffer[upto++] = word[1]; /* mantissa 1 */
536 buffer[upto++] = word[2]; /* mantissa 2 */
538 case 1: /* packed single */
539 buffer[upto++] = 0; /* mark as single */
540 buffer[upto++] = word[0]; /* sign, exp and mantissa */
541 buffer[upto++] = word[1]; /* padding */
542 buffer[upto++] = word[2]; /* padding */
544 case 3: /* packed double */
545 buffer[upto++] = 1; /* mark as double */
546 buffer[upto++] = word[0]; /* sign, exp and mantissa1 */
547 buffer[upto++] = word[1]; /* mantissa 2 */
548 buffer[upto++] = word[2]; /* padding */
550 case 5: /* packed extended */
551 buffer[upto++] = 2; /* mark as extended */
552 buffer[upto++] = word[0]; /* sign and exp */
553 buffer[upto++] = word[1]; /* mantissa 1 */
554 buffer[upto++] = word[2]; /* mantissa 2 */
556 case 7: /* packed decimal */
557 buffer[upto++] = 3; /* mark as packed decimal */
558 buffer[upto++] = word[0]; /* sign, exp and mantissa1 */
559 buffer[upto++] = word[1]; /* mantissa 2 */
560 buffer[upto++] = word[2]; /* mantissa 3 */
564 if (mask & (1L << r))
565 buffer[upto++] = ARMul_ReadWord (state, fpregsaddr + 128); /* fpsr */
566 if (mask & (1L << (r + 1)))
567 buffer[upto++] = 0; /* fpcr */
569 TracePrint ((state, "RDI_CPread: CPnum=%d mask=%.8lx\n", CPnum, mask));
573 for (upto = 0, r = 0; r < 9; r++)
574 if (mask & (1L << r))
578 ARMul_DebugPrint (state, "%08lx ", buffer[upto++]);
579 ARMul_DebugPrint (state, "%08lx ", buffer[upto++]);
580 ARMul_DebugPrint (state, "%08lx ", buffer[upto++]);
582 ARMul_DebugPrint (state, "%08lx\n", buffer[upto++]);
584 ARMul_DebugPrint (state, "\n");
587 return (RDIError_NoError);
591 /***************************************************************************\
593 \***************************************************************************/
596 RDI_CPwrite (unsigned CPnum, unsigned long mask, ARMword const buffer[])
602 if (CPnum != 1 && CPnum != 2)
604 unsigned char const *rmap = state->CPRegWords[CPnum];
606 return (RDIError_UnknownCoPro);
607 TracePrint ((state, "RDI_CPwrite: CPnum=%d mask=%.8lx", CPnum, mask));
612 for (upto = 0, r = 0; r < rmap[-1]; r++)
613 if (mask & (1L << r))
616 ARMul_DebugPrint (state, "%c%2d",
617 (w >= 4 ? (w = 0, '\n') : ' '), r);
620 ARMul_DebugPrint (state, " %.8lx", buffer[upto++]);
624 ARMul_DebugPrint (state, "\n");
627 for (upto = 0, r = 0; r < rmap[-1]; r++)
628 if (mask & (1L << r))
630 (void) state->CPWrite[CPnum] (state, r, &buffer[upto]);
633 return RDIError_NoError;
637 return RDIError_UnknownCoPro;
640 TracePrint ((state, "RDI_CPwrite: CPnum=%d mask=%.8lx", CPnum, mask));
644 for (upto = 0, r = 0; r < 9; r++)
645 if (mask & (1L << r))
649 ARMul_DebugPrint (state, "%08lx ", buffer[upto++]);
650 ARMul_DebugPrint (state, "%08lx ", buffer[upto++]);
651 ARMul_DebugPrint (state, "%08lx ", buffer[upto++]);
653 ARMul_DebugPrint (state, "%08lx\n", buffer[upto++]);
655 ARMul_DebugPrint (state, "\n");
661 fpregsaddr = ARMul_ReadWord (state, 4L);
662 if ((fpregsaddr & 0xff800000) != 0xea000000) /* Must be a forward branch */
663 return RDIError_UnknownCoPro;
664 fpregsaddr = ((fpregsaddr & 0xffffff) << 2) + 8; /* address in __fp_decode - 4 */
665 if ((fpregsaddr < FPESTART) || (fpregsaddr >= FPEEND))
666 return RDIError_UnknownCoPro;
667 fpregsaddr = ARMul_ReadWord (state, fpregsaddr); /* pointer to fp registers */
668 FPRegsAddr = fpregsaddr;
671 fpregsaddr = FPRegsAddr;
674 return RDIError_UnknownCoPro;
675 for (upto = 0, r = 0; r < 8; r++)
676 if (mask & (1L << r))
678 ARMul_WriteWord (state, fpregsaddr + (ARMword) r * 16,
680 ARMul_WriteWord (state, fpregsaddr + (ARMword) r * 16 + 4,
682 ARMul_WriteWord (state, fpregsaddr + (ARMword) r * 16 + 8,
684 ARMul_WriteWord (state, fpregsaddr + (ARMword) r * 16 + 12,
685 (buffer[upto] * 2 + 1) << 29); /* mark type */
688 if (mask & (1L << r))
689 ARMul_WriteWord (state, fpregsaddr + 128, buffer[upto++]); /* fpsr */
690 return (RDIError_NoError);
695 deletebreaknode (BreakNode ** prevp)
697 BreakNode *p = *prevp;
699 ARMul_WriteWord (state, p->address, p->inst);
706 removebreak (ARMword address, unsigned type)
708 BreakNode *p, **prevp = &BreakList;
709 for (; (p = *prevp) != NULL; prevp = &p->next)
710 if (p->address == address && p->type == type)
712 deletebreaknode (prevp);
718 /* This routine installs a breakpoint into the breakpoint table */
721 installbreak (ARMword address, unsigned type, ARMword bound)
723 BreakNode *p = (BreakNode *) malloc (sizeof (BreakNode));
726 p->address = address;
729 p->inst = ARMul_ReadWord (state, address);
730 ARMul_WriteWord (state, address, 0xee000000L);
734 /***************************************************************************\
736 \***************************************************************************/
739 RDI_setbreak (ARMword address, unsigned type, ARMword bound,
740 PointHandle * handle)
743 TracePrint ((state, "RDI_setbreak: address=%.8lx type=%d bound=%.8lx\n",
744 address, type, bound));
746 removebreak (address, type);
747 p = installbreak (address, type, bound);
750 *handle = (PointHandle) p;
751 TracePrint ((state, " returns %.8lx\n", *handle));
752 return RDIError_NoError;
755 /***************************************************************************\
757 \***************************************************************************/
760 RDI_clearbreak (PointHandle handle)
762 TracePrint ((state, "RDI_clearbreak: address=%.8lx\n", handle));
764 BreakNode *p, **prevp = &BreakList;
765 for (; (p = *prevp) != NULL; prevp = &p->next)
766 if (p == (BreakNode *) handle)
769 return RDIError_NoSuchPoint;
770 deletebreaknode (prevp);
771 return RDIError_NoError;
775 /***************************************************************************\
776 * Internal functions for breakpoint table manipulation *
777 \***************************************************************************/
780 deletewatchnode (WatchNode ** prevp)
782 WatchNode *p = *prevp;
783 if (p->datatype & Watch_AnyRead)
784 state->MemReadDebug--;
785 if (p->datatype & Watch_AnyWrite)
786 state->MemWriteDebug--;
792 removewatch (ARMword address, unsigned type)
794 WatchNode *p, **prevp = &WatchList;
795 for (; (p = *prevp) != NULL; prevp = &p->next)
796 if (p->address == address && p->type == type)
797 { /* found a match */
798 deletewatchnode (prevp);
801 return FALSE; /* never found a match */
805 installwatch (ARMword address, unsigned type, unsigned datatype,
808 WatchNode *p = (WatchNode *) malloc (sizeof (WatchNode));
811 p->address = address;
813 p->datatype = datatype;
818 /***************************************************************************\
820 \***************************************************************************/
823 RDI_setwatch (ARMword address, unsigned type, unsigned datatype,
824 ARMword bound, PointHandle * handle)
829 "RDI_setwatch: address=%.8lx type=%d datatype=%d bound=%.8lx",
830 address, type, datatype, bound));
832 if (!state->CanWatch)
833 return RDIError_UnimplementedMessage;
835 removewatch (address, type);
836 p = installwatch (address, type, datatype, bound);
837 if (datatype & Watch_AnyRead)
838 state->MemReadDebug++;
839 if (datatype & Watch_AnyWrite)
840 state->MemWriteDebug++;
841 *handle = (PointHandle) p;
842 TracePrint ((state, " returns %.8lx\n", *handle));
843 return RDIError_NoError;
846 /***************************************************************************\
848 \***************************************************************************/
851 RDI_clearwatch (PointHandle handle)
853 TracePrint ((state, "RDI_clearwatch: address=%.8lx\n", handle));
855 WatchNode *p, **prevp = &WatchList;
856 for (; (p = *prevp) != NULL; prevp = &p->next)
857 if (p == (WatchNode *) handle)
860 return RDIError_NoSuchPoint;
861 deletewatchnode (prevp);
862 return RDIError_NoError;
866 /***************************************************************************\
868 \***************************************************************************/
871 RDI_execute (PointHandle * handle)
873 TracePrint ((state, "RDI_execute\n"));
879 state->EndCondition = RDIError_NoError;
880 state->StopHandle = 0;
882 ARMul_DoProg (state);
884 *handle = state->StopHandle;
885 state->Reg[15] -= 8; /* undo the pipeline */
889 state->Debug = FALSE;
891 return (state->EndCondition);
894 /***************************************************************************\
896 \***************************************************************************/
899 RDI_step (unsigned ninstr, PointHandle * handle)
902 TracePrint ((state, "RDI_step\n"));
904 return RDIError_UnimplementedMessage;
910 state->EndCondition = RDIError_NoError;
911 state->StopHandle = 0;
912 ARMul_DoInstr (state);
913 *handle = state->StopHandle;
914 state->Reg[15] -= 8; /* undo the pipeline */
918 state->Debug = FALSE;
920 return (state->EndCondition);
923 /***************************************************************************\
925 \***************************************************************************/
928 RDI_info (unsigned type, ARMword * arg1, ARMword * arg2)
933 TracePrint ((state, "RDI_Info_Target\n"));
934 /* Emulator, speed 10**5 IPS */
935 *arg1 = 5 | HIGHEST_RDI_LEVEL << 5 | LOWEST_RDI_LEVEL << 8;
937 return RDIError_NoError;
941 ARMword n = RDIPointCapability_Comparison | RDIPointCapability_Range |
942 RDIPointCapability_Mask | RDIPointCapability_Status;
943 TracePrint ((state, "RDI_Info_Points\n"));
945 n |= (Watch_AnyRead + Watch_AnyWrite) << 2;
947 return RDIError_NoError;
951 TracePrint ((state, "RDI_Info_Step\n"));
952 *arg1 = RDIStep_Single;
953 return RDIError_NoError;
956 TracePrint ((state, "RDI_Info_MMU\n"));
958 return RDIError_NoError;
961 TracePrint ((state, "RDISignal_Stop\n"));
963 state->EndCondition = RDIError_UserInterrupt;
964 return RDIError_NoError;
966 case RDIVector_Catch:
967 TracePrint ((state, "RDIVector_Catch %.8lx\n", *arg1));
968 state->VectorCatch = (unsigned) *arg1;
969 return RDIError_NoError;
972 TracePrint ((state, "RDI_Set_Cmdline %s\n", (char *) arg1));
974 (char *) malloc ((unsigned) strlen ((char *) arg1) + 1);
975 (void) strcpy (state->CommandLine, (char *) arg1);
976 return RDIError_NoError;
979 TracePrint ((state, "RDI_Info_Cycles\n"));
981 arg1[1] = state->NumInstrs;
983 arg1[3] = state->NumScycles;
985 arg1[5] = state->NumNcycles;
987 arg1[7] = state->NumIcycles;
989 arg1[9] = state->NumCcycles;
991 arg1[11] = state->NumFcycles;
992 return RDIError_NoError;
995 *arg1 = ARMul_OSLastErrorP (state);
996 TracePrint ((state, "RDI_ErrorP returns %ld\n", *arg1));
997 return RDIError_NoError;
999 case RDIInfo_DescribeCoPro:
1001 int cpnum = *(int *) arg1;
1002 struct Dbg_CoProDesc *cpd = (struct Dbg_CoProDesc *) arg2;
1004 unsigned char const *map = state->CPRegWords[cpnum];
1006 return RDIError_UnknownCoPro;
1007 for (i = 0; i < cpd->entries; i++)
1009 unsigned r, w = cpd->regdesc[i].nbytes / sizeof (ARMword);
1010 for (r = cpd->regdesc[i].rmin; r <= cpd->regdesc[i].rmax; r++)
1012 return RDIError_BadCoProState;
1014 return RDIError_NoError;
1017 case RDIInfo_RequestCoProDesc:
1019 int cpnum = *(int *) arg1;
1020 struct Dbg_CoProDesc *cpd = (struct Dbg_CoProDesc *) arg2;
1021 int i = -1, lastw = -1, r;
1022 unsigned char const *map;
1023 if ((unsigned) cpnum >= 16)
1024 return RDIError_UnknownCoPro;
1025 map = state->CPRegWords[cpnum];
1027 return RDIError_UnknownCoPro;
1028 for (r = 0; r < map[-1]; r++)
1032 cpd->regdesc[i].rmax = r;
1035 if (++i >= cpd->entries)
1036 return RDIError_BufferFull;
1037 cpd->regdesc[i].rmax = cpd->regdesc[i].rmin = r;
1038 cpd->regdesc[i].nbytes = words * sizeof (ARMword);
1039 cpd->regdesc[i].access =
1040 Dbg_Access_Readable + Dbg_Access_Writable;
1043 cpd->entries = i + 1;
1044 return RDIError_NoError;
1048 *arg1 = (ARMword) rdi_log;
1049 return RDIError_NoError;
1051 case RDIInfo_SetLog:
1052 rdi_log = (int) *arg1;
1053 return RDIError_NoError;
1056 return RDIError_NoError;
1058 case RDIPointStatus_Watch:
1060 WatchNode *p, *handle = (WatchNode *) * arg1;
1061 for (p = WatchList; p != NULL; p = p->next)
1066 return RDIError_NoError;
1068 return RDIError_NoSuchPoint;
1071 case RDIPointStatus_Break:
1073 BreakNode *p, *handle = (BreakNode *) * arg1;
1074 for (p = BreakList; p != NULL; p = p->next)
1079 return RDIError_NoError;
1081 return RDIError_NoSuchPoint;
1084 case RDISet_RDILevel:
1085 if (*arg1 < LOWEST_RDI_LEVEL || *arg1 > HIGHEST_RDI_LEVEL)
1086 return RDIError_IncompatibleRDILevels;
1087 MYrdi_level = *arg1;
1088 return RDIError_NoError;
1091 return RDIError_UnimplementedMessage;
1096 /***************************************************************************\
1097 * The emulator calls this routine at the beginning of every cycle when the *
1098 * CallDebug flag is set. The second parameter passed is the address of the *
1099 * currently executing instruction (i.e Program Counter - 8), the third *
1100 * parameter is the instruction being executed. *
1101 \***************************************************************************/
1104 ARMul_Debug (ARMul_State * state, ARMword pc, ARMword instr)
1107 if (state->EndCondition == RDIError_UserInterrupt)
1109 TracePrint ((state, "User interrupt at %.8lx\n", pc));
1111 state->Emulate = STOP;
1115 BreakNode *p = BreakList;
1116 for (; p != NULL; p = p->next)
1121 if (pc == p->address)
1125 if (pc > p->address)
1129 if (pc >= p->address)
1133 if (pc < p->address)
1137 if (pc <= p->address)
1141 if (p->address <= pc && pc < p->address + p->bound)
1145 if (p->address > pc || pc >= p->address + p->bound)
1149 if ((pc & p->bound) == p->address)
1154 TracePrint ((state, "Breakpoint reached at %.8lx\n", pc));
1155 state->EndCondition = RDIError_BreakpointReached;
1156 state->Emulate = STOP;
1157 state->StopHandle = (ARMword) p;
1165 ARMul_CheckWatch (ARMul_State * state, ARMword addr, int access)
1168 for (p = WatchList; p != NULL; p = p->next)
1169 if (p->datatype & access)
1174 if (addr == p->address)
1178 if (addr > p->address)
1182 if (addr >= p->address)
1186 if (addr < p->address)
1190 if (addr <= p->address)
1194 if (p->address <= addr && addr < p->address + p->bound)
1198 if (p->address > addr || addr >= p->address + p->bound)
1202 if ((addr & p->bound) == p->address)
1207 TracePrint ((state, "Watchpoint at %.8lx accessed\n", addr));
1208 state->EndCondition = RDIError_WatchpointAccessed;
1209 state->Emulate = STOP;
1210 state->StopHandle = (ARMword) p;
1215 static RDI_NameList const *
1218 return (RDI_NameList const *) &processorconfig.count;
1221 const struct RDIProcVec armul_rdi = {
1241 0, /*loadconfigdata */
1242 0, /*selectconfig */