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00018 #include <stdio.h>
00019 #include <stdlib.h>
00020
00021 #define FALSE 0
00022 #define TRUE 1
00023 #define LOW 0
00024 #define HIGH 1
00025 #define LOWHIGH 1
00026 #define HIGHLOW 2
00027
00028 #ifndef __STDC__
00029 typedef char *VoidStar;
00030 #endif
00031
00032 typedef unsigned long ARMword;
00033 typedef struct ARMul_State ARMul_State;
00034
00035 typedef unsigned ARMul_CPInits (ARMul_State * state);
00036 typedef unsigned ARMul_CPExits (ARMul_State * state);
00037 typedef unsigned ARMul_LDCs (ARMul_State * state, unsigned type,
00038 ARMword instr, ARMword value);
00039 typedef unsigned ARMul_STCs (ARMul_State * state, unsigned type,
00040 ARMword instr, ARMword * value);
00041 typedef unsigned ARMul_MRCs (ARMul_State * state, unsigned type,
00042 ARMword instr, ARMword * value);
00043 typedef unsigned ARMul_MCRs (ARMul_State * state, unsigned type,
00044 ARMword instr, ARMword value);
00045 typedef unsigned ARMul_CDPs (ARMul_State * state, unsigned type,
00046 ARMword instr);
00047 typedef unsigned ARMul_CPReads (ARMul_State * state, unsigned reg,
00048 ARMword * value);
00049 typedef unsigned ARMul_CPWrites (ARMul_State * state, unsigned reg,
00050 ARMword value);
00051
00052 struct ARMul_State
00053 {
00054 ARMword Emulate;
00055 unsigned EndCondition;
00056 unsigned ErrorCode;
00057 ARMword Reg[16];
00058 ARMword RegBank[7][16];
00059 ARMword Cpsr;
00060 ARMword Spsr[7];
00061 ARMword NFlag, ZFlag, CFlag, VFlag, IFFlags;
00062 #ifdef MODET
00063 ARMword TFlag;
00064 #endif
00065 ARMword Bank;
00066 ARMword Mode;
00067 ARMword instr, pc, temp;
00068 ARMword loaded, decoded;
00069 unsigned long NumScycles, NumNcycles, NumIcycles, NumCcycles, NumFcycles;
00070 unsigned long NumInstrs;
00071 unsigned NextInstr;
00072 unsigned VectorCatch;
00073 unsigned CallDebug;
00074 unsigned CanWatch;
00075
00076
00077 unsigned MemReadDebug, MemWriteDebug;
00078 unsigned long StopHandle;
00079
00080 unsigned char *MemDataPtr;
00081 unsigned char *MemInPtr;
00082 unsigned char *MemOutPtr;
00083 unsigned char *MemSparePtr;
00084 ARMword MemSize;
00085
00086 unsigned char *OSptr;
00087 char *CommandLine;
00088
00089 ARMul_CPInits *CPInit[16];
00090 ARMul_CPExits *CPExit[16];
00091 ARMul_LDCs *LDC[16];
00092 ARMul_STCs *STC[16];
00093 ARMul_MRCs *MRC[16];
00094 ARMul_MCRs *MCR[16];
00095 ARMul_CDPs *CDP[16];
00096 ARMul_CPReads *CPRead[16];
00097 ARMul_CPWrites *CPWrite[16];
00098 unsigned char *CPData[16];
00099 unsigned char const *CPRegWords[16];
00100
00101 unsigned EventSet;
00102 unsigned long Now;
00103 struct EventNode **EventPtr;
00104
00105 unsigned Exception;
00106 unsigned Debug;
00107 unsigned NresetSig;
00108 unsigned NfiqSig;
00109 unsigned NirqSig;
00110
00111 unsigned abortSig;
00112 unsigned NtransSig;
00113 unsigned bigendSig;
00114 unsigned prog32Sig;
00115 unsigned data32Sig;
00116 unsigned lateabtSig;
00117 ARMword Vector;
00118 ARMword Aborted;
00119 ARMword Reseted;
00120 ARMword Inted, LastInted;
00121 ARMword Base;
00122 ARMword AbortAddr;
00123
00124 const struct Dbg_HostosInterface *hostif;
00125
00126 int verbose;
00127 };
00128
00129 #define ResetPin NresetSig
00130 #define FIQPin NfiqSig
00131 #define IRQPin NirqSig
00132 #define AbortPin abortSig
00133 #define TransPin NtransSig
00134 #define BigEndPin bigendSig
00135 #define Prog32Pin prog32Sig
00136 #define Data32Pin data32Sig
00137 #define LateAbortPin lateabtSig
00138
00139
00140
00141
00142
00143
00144 #define ARM_Fix26_Prop 0x01
00145 #define ARM_Nexec_Prop 0x02
00146 #define ARM_Debug_Prop 0x10
00147 #define ARM_Isync_Prop ARM_Debug_Prop
00148 #define ARM_Lock_Prop 0x20
00149
00150
00151 #define ARM2 (ARM_Fix26_Prop)
00152 #define ARM2as ARM2
00153 #define ARM61 ARM2
00154 #define ARM3 ARM2
00155
00156 #ifdef ARM60
00157 #undef ARM60
00158 #endif
00159
00160
00161 #define ARM6 (ARM_Lock_Prop)
00162 #define ARM60 ARM6
00163 #define ARM600 ARM6
00164 #define ARM610 ARM6
00165 #define ARM620 ARM6
00166
00167
00168
00169
00170
00171
00172 #define BIT(n) ( (ARMword)(instr>>(n))&1)
00173 #define BITS(m,n) ( (ARMword)(instr<<(31-(n))) >> ((31-(n))+(m)) )
00174 #define TOPBITS(n) (instr >> (n))
00175
00176
00177
00178
00179
00180 #define ARMResetV 0L
00181 #define ARMUndefinedInstrV 4L
00182 #define ARMSWIV 8L
00183 #define ARMPrefetchAbortV 12L
00184 #define ARMDataAbortV 16L
00185 #define ARMAddrExceptnV 20L
00186 #define ARMIRQV 24L
00187 #define ARMFIQV 28L
00188 #define ARMErrorV 32L
00189
00190 #define ARMul_ResetV ARMResetV
00191 #define ARMul_UndefinedInstrV ARMUndefinedInstrV
00192 #define ARMul_SWIV ARMSWIV
00193 #define ARMul_PrefetchAbortV ARMPrefetchAbortV
00194 #define ARMul_DataAbortV ARMDataAbortV
00195 #define ARMul_AddrExceptnV ARMAddrExceptnV
00196 #define ARMul_IRQV ARMIRQV
00197 #define ARMul_FIQV ARMFIQV
00198
00199
00200
00201
00202
00203 #define USER26MODE 0L
00204 #define FIQ26MODE 1L
00205 #define IRQ26MODE 2L
00206 #define SVC26MODE 3L
00207 #define USER32MODE 16L
00208 #define FIQ32MODE 17L
00209 #define IRQ32MODE 18L
00210 #define SVC32MODE 19L
00211 #define ABORT32MODE 23L
00212 #define UNDEF32MODE 27L
00213
00214 #define ARM32BITMODE (state->Mode > 3)
00215 #define ARM26BITMODE (state->Mode <= 3)
00216 #define ARMMODE (state->Mode)
00217 #define ARMul_MODEBITS 0x1fL
00218 #define ARMul_MODE32BIT ARM32BITMODE
00219 #define ARMul_MODE26BIT ARM26BITMODE
00220
00221 #define USERBANK 0
00222 #define FIQBANK 1
00223 #define IRQBANK 2
00224 #define SVCBANK 3
00225 #define ABORTBANK 4
00226 #define UNDEFBANK 5
00227 #define DUMMYBANK 6
00228
00229
00230
00231
00232
00233 extern void ARMul_EmulateInit (void);
00234 extern ARMul_State *ARMul_NewState (void);
00235 extern void ARMul_Reset (ARMul_State * state);
00236 extern ARMword ARMul_DoProg (ARMul_State * state);
00237 extern ARMword ARMul_DoInstr (ARMul_State * state);
00238
00239
00240
00241
00242
00243 extern void ARMul_ScheduleEvent (ARMul_State * state, unsigned long delay,
00244 unsigned (*func) ());
00245 extern void ARMul_EnvokeEvent (ARMul_State * state);
00246 extern unsigned long ARMul_Time (ARMul_State * state);
00247
00248
00249
00250
00251
00252 extern ARMword ARMul_GetReg (ARMul_State * state, unsigned mode,
00253 unsigned reg);
00254 extern void ARMul_SetReg (ARMul_State * state, unsigned mode, unsigned reg,
00255 ARMword value);
00256 extern ARMword ARMul_GetPC (ARMul_State * state);
00257 extern ARMword ARMul_GetNextPC (ARMul_State * state);
00258 extern void ARMul_SetPC (ARMul_State * state, ARMword value);
00259 extern ARMword ARMul_GetR15 (ARMul_State * state);
00260 extern void ARMul_SetR15 (ARMul_State * state, ARMword value);
00261
00262 extern ARMword ARMul_GetCPSR (ARMul_State * state);
00263 extern void ARMul_SetCPSR (ARMul_State * state, ARMword value);
00264 extern ARMword ARMul_GetSPSR (ARMul_State * state, ARMword mode);
00265 extern void ARMul_SetSPSR (ARMul_State * state, ARMword mode, ARMword value);
00266
00267
00268
00269
00270
00271 extern void ARMul_Abort (ARMul_State * state, ARMword address);
00272 #define ARMul_ABORTWORD 0xefffffff
00273 #define ARMul_PREFETCHABORT(address) if (state->AbortAddr == 1) \
00274 state->AbortAddr = (address & ~3L)
00275 #define ARMul_DATAABORT(address) state->abortSig = HIGH ; \
00276 state->Aborted = ARMul_DataAbortV ;
00277 #define ARMul_CLEARABORT state->abortSig = LOW
00278
00279
00280
00281
00282
00283 extern unsigned ARMul_MemoryInit (ARMul_State * state,
00284 unsigned long initmemsize);
00285 extern void ARMul_MemoryExit (ARMul_State * state);
00286
00287 extern ARMword ARMul_LoadInstrS (ARMul_State * state, ARMword address,
00288 ARMword isize);
00289 extern ARMword ARMul_LoadInstrN (ARMul_State * state, ARMword address,
00290 ARMword isize);
00291 extern ARMword ARMul_ReLoadInstr (ARMul_State * state, ARMword address,
00292 ARMword isize);
00293
00294 extern ARMword ARMul_LoadWordS (ARMul_State * state, ARMword address);
00295 extern ARMword ARMul_LoadWordN (ARMul_State * state, ARMword address);
00296 extern ARMword ARMul_LoadHalfWord (ARMul_State * state, ARMword address);
00297 extern ARMword ARMul_LoadByte (ARMul_State * state, ARMword address);
00298
00299 extern void ARMul_StoreWordS (ARMul_State * state, ARMword address,
00300 ARMword data);
00301 extern void ARMul_StoreWordN (ARMul_State * state, ARMword address,
00302 ARMword data);
00303 extern void ARMul_StoreHalfWord (ARMul_State * state, ARMword address,
00304 ARMword data);
00305 extern void ARMul_StoreByte (ARMul_State * state, ARMword address,
00306 ARMword data);
00307
00308 extern ARMword ARMul_SwapWord (ARMul_State * state, ARMword address,
00309 ARMword data);
00310 extern ARMword ARMul_SwapByte (ARMul_State * state, ARMword address,
00311 ARMword data);
00312
00313 extern void ARMul_Icycles (ARMul_State * state, unsigned number,
00314 ARMword address);
00315 extern void ARMul_Ccycles (ARMul_State * state, unsigned number,
00316 ARMword address);
00317
00318 extern ARMword ARMul_ReadWord (ARMul_State * state, ARMword address);
00319 extern ARMword ARMul_ReadByte (ARMul_State * state, ARMword address);
00320 extern void ARMul_WriteWord (ARMul_State * state, ARMword address,
00321 ARMword data);
00322 extern void ARMul_WriteByte (ARMul_State * state, ARMword address,
00323 ARMword data);
00324
00325 extern ARMword ARMul_MemAccess (ARMul_State * state, ARMword, ARMword,
00326 ARMword, ARMword, ARMword, ARMword, ARMword,
00327 ARMword, ARMword, ARMword);
00328
00329
00330
00331
00332
00333 #define ARMul_FIRST 0
00334 #define ARMul_TRANSFER 1
00335 #define ARMul_BUSY 2
00336 #define ARMul_DATA 3
00337 #define ARMul_INTERRUPT 4
00338 #define ARMul_DONE 0
00339 #define ARMul_CANT 1
00340 #define ARMul_INC 3
00341
00342 extern unsigned ARMul_CoProInit (ARMul_State * state);
00343 extern void ARMul_CoProExit (ARMul_State * state);
00344 extern void ARMul_CoProAttach (ARMul_State * state, unsigned number,
00345 ARMul_CPInits * init, ARMul_CPExits * exit,
00346 ARMul_LDCs * ldc, ARMul_STCs * stc,
00347 ARMul_MRCs * mrc, ARMul_MCRs * mcr,
00348 ARMul_CDPs * cdp,
00349 ARMul_CPReads * read, ARMul_CPWrites * write);
00350 extern void ARMul_CoProDetach (ARMul_State * state, unsigned number);
00351
00352
00353
00354
00355
00356 extern unsigned ARMul_OSInit (ARMul_State * state);
00357 extern void ARMul_OSExit (ARMul_State * state);
00358 extern unsigned ARMul_OSHandleSWI (ARMword instr, ARMul_State * state, ARMword number);
00359 extern ARMword ARMul_OSLastErrorP (ARMul_State * state);
00360
00361 extern ARMword ARMul_Debug (ARMul_State * state, ARMword pc, ARMword instr);
00362 extern unsigned ARMul_OSException (ARMul_State * state, ARMword vector,
00363 ARMword pc);
00364 extern int rdi_log;
00365
00366
00367
00368
00369
00370 #ifdef macintosh
00371 pascal void SpinCursor (short increment);
00372 # define HOURGLASS SpinCursor( 1 )
00373 # define HOURGLASS_RATE 1023
00374 #endif
00375
00376 extern void ARMul_UndefInstr (ARMul_State *, ARMword);
00377 extern void ARMul_FixCPSR (ARMul_State *, ARMword, ARMword);
00378 extern void ARMul_FixSPSR (ARMul_State *, ARMword, ARMword);
00379 extern void ARMul_ConsolePrint (ARMul_State *, const char *, ...);
00380 extern void ARMul_SelectProcessor (ARMul_State *, unsigned);