forked from emukidid/pcsxgc
-
Notifications
You must be signed in to change notification settings - Fork 0
/
Copy pathDisR3000A.c
329 lines (282 loc) · 16.5 KB
/
DisR3000A.c
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
/***************************************************************************
* Copyright (C) 2007 Ryan Schultz, PCSX-df Team, PCSX team *
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
* This program is distributed in the hope that it will be useful, *
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
* GNU General Public License for more details. *
* *
* You should have received a copy of the GNU General Public License *
* along with this program; if not, write to the *
* Free Software Foundation, Inc., *
* 51 Franklin Street, Fifth Floor, Boston, MA 02111-1307 USA. *
***************************************************************************/
#if 0
/*
* R3000A disassembler.
*/
#include "PsxCommon.h"
// XXX: don't care but maybe fix it someday
#if defined(__GNUC__) && __GNUC__ >= 7
#pragma GCC diagnostic ignored "-Wrestrict"
#endif
char ostr[256];
// Names of registers
static char *disRNameGPR[] = {
"r0", "at", "v0", "v1", "a0", "a1","a2", "a3",
"t0", "t1", "t2", "t3", "t4", "t5","t6", "t7",
"s0", "s1", "s2", "s3", "s4", "s5","s6", "s7",
"t8", "t9", "k0", "k1", "gp", "sp","fp", "ra"};
char *disRNameCP0[] = {
"Index" , "Random" , "EntryLo0", "EntryLo1", "Context" , "PageMask" , "Wired" , "*Check me*",
"BadVAddr" , "Count" , "EntryHi" , "Compare" , "Status" , "Cause" , "ExceptPC" , "PRevID" ,
"Config" , "LLAddr" , "WatchLo" , "WatchHi" , "XContext", "*RES*" , "*RES*" , "*RES*" ,
"*RES*" , "*RES* " , "PErr" , "CacheErr", "TagLo" , "TagHi" , "ErrorEPC" , "*RES*" };
// Type deffinition of our functions
typedef char* (*TdisR3000AF)(u32 code, u32 pc);
// These macros are used to assemble the disassembler functions
#define MakeDisFg(fn, b) char* fn(u32 code, u32 pc) { b; return ostr; }
#define MakeDisF(fn, b) \
static char* fn(u32 code, u32 pc) { \
sprintf (ostr, "%8.8x %8.8x:", pc, code); \
b; /*ostr[(strlen(ostr) - 1)] = 0;*/ return ostr; \
}
#include "R3000A.h"
#undef _Funct_
#undef _Rd_
#undef _Rt_
#undef _Rs_
#undef _Sa_
#undef _Im_
#undef _Target_
#define _Funct_ ((code ) & 0x3F) // The funct part of the instruction register
#define _Rd_ ((code >> 11) & 0x1F) // The rd part of the instruction register
#define _Rt_ ((code >> 16) & 0x1F) // The rt part of the instruction register
#define _Rs_ ((code >> 21) & 0x1F) // The rs part of the instruction register
#define _Sa_ ((code >> 6) & 0x1F) // The sa part of the instruction register
#define _Im_ ( code & 0xFFFF) // The immediate part of the instruction register
#define _Target_ ((pc & 0xf0000000) + ((code & 0x03ffffff) * 4))
#define _Branch_ (pc + 4 + ((short)_Im_ * 4))
#define _OfB_ _Im_, _nRs_
#define dName(i) snprintf(ostr, sizeof(ostr), "%s %-7s,", ostr, i)
#define dGPR(i) snprintf(ostr, sizeof(ostr), "%s %8.8x (%s),", ostr, psxRegs.GPR.r[i], disRNameGPR[i])
#define dCP0(i) snprintf(ostr, sizeof(ostr), "%s %8.8x (%s),", ostr, psxRegs.CP0.r[i], disRNameCP0[i])
#define dHI() snprintf(ostr, sizeof(ostr), "%s %8.8x (%s),", ostr, psxRegs.GPR.n.hi, "hi")
#define dLO() snprintf(ostr, sizeof(ostr), "%s %8.8x (%s),", ostr, psxRegs.GPR.n.lo, "lo")
#define dImm() snprintf(ostr, sizeof(ostr), "%s %4.4x (%d),", ostr, _Im_, _Im_)
#define dTarget() snprintf(ostr, sizeof(ostr), "%s %8.8x,", ostr, _Target_)
#define dSa() snprintf(ostr, sizeof(ostr), "%s %2.2x (%d),", ostr, _Sa_, _Sa_)
#define dOfB() snprintf(ostr, sizeof(ostr), "%s %4.4x (%8.8x (%s)),", ostr, _Im_, psxRegs.GPR.r[_Rs_], disRNameGPR[_Rs_])
#define dOffset() snprintf(ostr, sizeof(ostr), "%s %8.8x,", ostr, _Branch_)
#define dCode() snprintf(ostr, sizeof(ostr), "%s %8.8x,", ostr, (code >> 6) & 0xffffff)
/*********************************************************
* Arithmetic with immediate operand *
* Format: OP rt, rs, immediate *
*********************************************************/
MakeDisF(disADDI, dName("ADDI"); dGPR(_Rt_); dGPR(_Rs_); dImm();)
MakeDisF(disADDIU, dName("ADDIU"); dGPR(_Rt_); dGPR(_Rs_); dImm();)
MakeDisF(disANDI, dName("ANDI"); dGPR(_Rt_); dGPR(_Rs_); dImm();)
MakeDisF(disORI, dName("ORI"); dGPR(_Rt_); dGPR(_Rs_); dImm();)
MakeDisF(disSLTI, dName("SLTI"); dGPR(_Rt_); dGPR(_Rs_); dImm();)
MakeDisF(disSLTIU, dName("SLTIU"); dGPR(_Rt_); dGPR(_Rs_); dImm();)
MakeDisF(disXORI, dName("XORI"); dGPR(_Rt_); dGPR(_Rs_); dImm();)
/*********************************************************
* Register arithmetic *
* Format: OP rd, rs, rt *
*********************************************************/
MakeDisF(disADD, dName("ADD"); dGPR(_Rd_); dGPR(_Rs_); dGPR(_Rt_);)
MakeDisF(disADDU, dName("ADDU"); dGPR(_Rd_); dGPR(_Rs_); dGPR(_Rt_);)
MakeDisF(disAND, dName("AND"); dGPR(_Rd_); dGPR(_Rs_); dGPR(_Rt_);)
MakeDisF(disNOR, dName("NOR"); dGPR(_Rd_); dGPR(_Rs_); dGPR(_Rt_);)
MakeDisF(disOR, dName("OR"); dGPR(_Rd_); dGPR(_Rs_); dGPR(_Rt_);)
MakeDisF(disSLT, dName("SLT"); dGPR(_Rd_); dGPR(_Rs_); dGPR(_Rt_);)
MakeDisF(disSLTU, dName("SLTU"); dGPR(_Rd_); dGPR(_Rs_); dGPR(_Rt_);)
MakeDisF(disSUB, dName("SUB"); dGPR(_Rd_); dGPR(_Rs_); dGPR(_Rt_);)
MakeDisF(disSUBU, dName("SUBU"); dGPR(_Rd_); dGPR(_Rs_); dGPR(_Rt_);)
MakeDisF(disXOR, dName("XOR"); dGPR(_Rd_); dGPR(_Rs_); dGPR(_Rt_);)
/*********************************************************
* Register arithmetic & Register trap logic *
* Format: OP rs, rt *
*********************************************************/
MakeDisF(disDIV, dName("DIV"); dGPR(_Rs_); dGPR(_Rt_);)
MakeDisF(disDIVU, dName("DIVU"); dGPR(_Rs_); dGPR(_Rt_);)
MakeDisF(disMULT, dName("MULT"); dGPR(_Rs_); dGPR(_Rt_);)
MakeDisF(disMULTU, dName("MULTU"); dGPR(_Rs_); dGPR(_Rt_);)
/*********************************************************
* Register branch logic *
* Format: OP rs, offset *
*********************************************************/
MakeDisF(disBGEZ, dName("BGEZ"); dGPR(_Rs_); dOffset();)
MakeDisF(disBGEZAL, dName("BGEZAL"); dGPR(_Rs_); dOffset();)
MakeDisF(disBGTZ, dName("BGTZ"); dGPR(_Rs_); dOffset();)
MakeDisF(disBLEZ, dName("BLEZ"); dGPR(_Rs_); dOffset();)
MakeDisF(disBLTZ, dName("BLTZ"); dGPR(_Rs_); dOffset();)
MakeDisF(disBLTZAL, dName("BLTZAL"); dGPR(_Rs_); dOffset();)
/*********************************************************
* Shift arithmetic with constant shift *
* Format: OP rd, rt, sa *
*********************************************************/
MakeDisF(disSLL, if (code) { dName("SLL"); dGPR(_Rd_); dGPR(_Rt_); dSa(); } else { dName("NOP"); })
MakeDisF(disSRA, dName("SRA"); dGPR(_Rd_); dGPR(_Rt_); dSa();)
MakeDisF(disSRL, dName("SRL"); dGPR(_Rd_); dGPR(_Rt_); dSa();)
/*********************************************************
* Shift arithmetic with variant register shift *
* Format: OP rd, rt, rs *
*********************************************************/
MakeDisF(disSLLV, dName("SLLV"); dGPR(_Rd_); dGPR(_Rt_); dGPR(_Rs_);)
MakeDisF(disSRAV, dName("SRAV"); dGPR(_Rd_); dGPR(_Rt_); dGPR(_Rs_);)
MakeDisF(disSRLV, dName("SRLV"); dGPR(_Rd_); dGPR(_Rt_); dGPR(_Rs_);)
/*********************************************************
* Load higher 16 bits of the first word in GPR with imm *
* Format: OP rt, immediate *
*********************************************************/
MakeDisF(disLUI, dName("LUI"); dGPR(_Rt_); dImm();)
/*********************************************************
* Move from HI/LO to GPR *
* Format: OP rd *
*********************************************************/
MakeDisF(disMFHI, dName("MFHI"); dGPR(_Rd_); dHI();)
MakeDisF(disMFLO, dName("MFLO"); dGPR(_Rd_); dLO();)
/*********************************************************
* Move from GPR to HI/LO *
* Format: OP rd *
*********************************************************/
MakeDisF(disMTHI, dName("MTHI"); dHI(); dGPR(_Rs_);)
MakeDisF(disMTLO, dName("MTLO"); dLO(); dGPR(_Rs_);)
/*********************************************************
* Special purpose instructions *
* Format: OP *
*********************************************************/
MakeDisF(disBREAK, dName("BREAK"))
MakeDisF(disRFE, dName("RFE"))
MakeDisF(disSYSCALL, dName("SYSCALL"))
MakeDisF(disHLE, dName("HLE"))
MakeDisF(disRTPS, dName("RTPS"))
MakeDisF(disOP , dName("OP"))
MakeDisF(disNCLIP, dName("NCLIP"))
MakeDisF(disDPCS, dName("DPCS"))
MakeDisF(disINTPL, dName("INTPL"))
MakeDisF(disMVMVA, dName("MVMVA"))
MakeDisF(disNCDS , dName("NCDS"))
MakeDisF(disCDP , dName("CDP"))
MakeDisF(disNCDT , dName("NCDT"))
MakeDisF(disNCCS , dName("NCCS"))
MakeDisF(disCC , dName("CC"))
MakeDisF(disNCS , dName("NCS"))
MakeDisF(disNCT , dName("NCT"))
MakeDisF(disSQR , dName("SQR"))
MakeDisF(disDCPL , dName("DCPL"))
MakeDisF(disDPCT , dName("DPCT"))
MakeDisF(disAVSZ3, dName("AVSZ3"))
MakeDisF(disAVSZ4, dName("AVSZ4"))
MakeDisF(disRTPT , dName("RTPT"))
MakeDisF(disGPF , dName("GPF"))
MakeDisF(disGPL , dName("GPL"))
MakeDisF(disNCCT , dName("NCCT"))
MakeDisF(disMFC2, dName("MFC2"); dGPR(_Rt_);)
MakeDisF(disCFC2, dName("CFC2"); dGPR(_Rt_);)
MakeDisF(disMTC2, dName("MTC2"); dGPR(_Rt_);)
MakeDisF(disCTC2, dName("CTC2"); dGPR(_Rt_);)
/*********************************************************
* Register branch logic *
* Format: OP rs, rt, offset *
*********************************************************/
MakeDisF(disBEQ, dName("BEQ"); dGPR(_Rs_); dGPR(_Rt_); dOffset();)
MakeDisF(disBNE, dName("BNE"); dGPR(_Rs_); dGPR(_Rt_); dOffset();)
/*********************************************************
* Jump to target *
* Format: OP target *
*********************************************************/
MakeDisF(disJ, dName("J"); dTarget();)
MakeDisF(disJAL, dName("JAL"); dTarget(); dGPR(31);)
/*********************************************************
* Register jump *
* Format: OP rs, rd *
*********************************************************/
MakeDisF(disJR, dName("JR"); dGPR(_Rs_);)
MakeDisF(disJALR, dName("JALR"); dGPR(_Rs_); dGPR(_Rd_))
/*********************************************************
* Load and store for GPR *
* Format: OP rt, offset(base) *
*********************************************************/
MakeDisF(disLB, dName("LB"); dGPR(_Rt_); dOfB();)
MakeDisF(disLBU, dName("LBU"); dGPR(_Rt_); dOfB();)
MakeDisF(disLH, dName("LH"); dGPR(_Rt_); dOfB();)
MakeDisF(disLHU, dName("LHU"); dGPR(_Rt_); dOfB();)
MakeDisF(disLW, dName("LW"); dGPR(_Rt_); dOfB();)
MakeDisF(disLWL, dName("LWL"); dGPR(_Rt_); dOfB();)
MakeDisF(disLWR, dName("LWR"); dGPR(_Rt_); dOfB();)
MakeDisF(disLWC2, dName("LWC2"); dGPR(_Rt_); dOfB();)
MakeDisF(disSB, dName("SB"); dGPR(_Rt_); dOfB();)
MakeDisF(disSH, dName("SH"); dGPR(_Rt_); dOfB();)
MakeDisF(disSW, dName("SW"); dGPR(_Rt_); dOfB();)
MakeDisF(disSWL, dName("SWL"); dGPR(_Rt_); dOfB();)
MakeDisF(disSWR, dName("SWR"); dGPR(_Rt_); dOfB();)
MakeDisF(disSWC2, dName("SWC2"); dGPR(_Rt_); dOfB();)
/*********************************************************
* Moves between GPR and COPx *
* Format: OP rt, fs *
*********************************************************/
MakeDisF(disMFC0, dName("MFC0"); dGPR(_Rt_); dCP0(_Rd_);)
MakeDisF(disMTC0, dName("MTC0"); dCP0(_Rd_); dGPR(_Rt_);)
MakeDisF(disCFC0, dName("CFC0"); dGPR(_Rt_); dCP0(_Rd_);)
MakeDisF(disCTC0, dName("CTC0"); dCP0(_Rd_); dGPR(_Rt_);)
/*********************************************************
* Unknow instruction (would generate an exception) *
* Format: ? *
*********************************************************/
MakeDisF(disNULL, dName("*** Bad OP ***");)
TdisR3000AF disR3000A_SPECIAL[] = { // Subset of disSPECIAL
disSLL , disNULL , disSRL , disSRA , disSLLV , disNULL , disSRLV , disSRAV ,
disJR , disJALR , disNULL, disNULL, disSYSCALL, disBREAK , disNULL , disNULL ,
disMFHI, disMTHI , disMFLO, disMTLO, disNULL , disNULL , disNULL , disNULL ,
disMULT, disMULTU, disDIV , disDIVU, disNULL , disNULL , disNULL , disNULL ,
disADD , disADDU , disSUB , disSUBU, disAND , disOR , disXOR , disNOR ,
disNULL, disNULL , disSLT , disSLTU, disNULL , disNULL , disNULL , disNULL ,
disNULL, disNULL , disNULL, disNULL, disNULL , disNULL , disNULL , disNULL ,
disNULL, disNULL , disNULL, disNULL, disNULL , disNULL , disNULL , disNULL};
MakeDisF(disSPECIAL, disR3000A_SPECIAL[_Funct_](code, pc))
TdisR3000AF disR3000A_BCOND[] = { // Subset of disBCOND
disBLTZ , disBGEZ , disNULL, disNULL, disNULL, disNULL, disNULL, disNULL,
disNULL , disNULL , disNULL, disNULL, disNULL, disNULL, disNULL, disNULL,
disBLTZAL, disBGEZAL, disNULL, disNULL, disNULL, disNULL, disNULL, disNULL,
disNULL , disNULL , disNULL, disNULL, disNULL, disNULL, disNULL, disNULL};
MakeDisF(disBCOND, disR3000A_BCOND[_Rt_](code, pc))
TdisR3000AF disR3000A_COP0[] = { // Subset of disCOP0
disMFC0, disNULL, disCFC0, disNULL, disMTC0, disNULL, disCTC0, disNULL,
disNULL, disNULL, disNULL, disNULL, disNULL, disNULL, disNULL, disNULL,
disRFE , disNULL, disNULL, disNULL, disNULL, disNULL, disNULL, disNULL,
disNULL, disNULL, disNULL, disNULL, disNULL, disNULL, disNULL, disNULL};
MakeDisF(disCOP0, disR3000A_COP0[_Rs_](code, pc))
TdisR3000AF disR3000A_BASIC[] = { // Subset of disBASIC (based on rs)
disMFC2, disNULL, disCFC2, disNULL, disMTC2, disNULL, disCTC2, disNULL,
disNULL, disNULL, disNULL, disNULL, disNULL, disNULL, disNULL, disNULL,
disNULL, disNULL, disNULL, disNULL, disNULL, disNULL, disNULL, disNULL,
disNULL, disNULL, disNULL, disNULL, disNULL, disNULL, disNULL, disNULL};
MakeDisF(disBASIC, disR3000A_BASIC[_Rs_](code, pc))
TdisR3000AF disR3000A_COP2[] = { // Subset of disR3000F_COP2 (based on funct)
disBASIC, disRTPS , disNULL , disNULL , disNULL, disNULL , disNCLIP, disNULL,
disNULL , disNULL , disNULL , disNULL , disOP , disNULL , disNULL , disNULL,
disDPCS , disINTPL, disMVMVA, disNCDS , disCDP , disNULL , disNCDT , disNULL,
disNULL , disNULL , disNULL , disNCCS , disCC , disNULL , disNCS , disNULL,
disNCT , disNULL , disNULL , disNULL , disNULL, disNULL , disNULL , disNULL,
disSQR , disDCPL , disDPCT , disNULL , disNULL, disAVSZ3, disAVSZ4, disNULL,
disRTPT , disNULL , disNULL , disNULL , disNULL, disNULL , disNULL , disNULL,
disNULL , disNULL , disNULL , disNULL , disNULL, disGPF , disGPL , disNCCT };
MakeDisF(disCOP2, disR3000A_COP2[_Funct_](code, pc))
TdisR3000AF disR3000A[] = {
disSPECIAL , disBCOND , disJ , disJAL , disBEQ , disBNE , disBLEZ , disBGTZ ,
disADDI , disADDIU , disSLTI , disSLTIU, disANDI, disORI , disXORI , disLUI ,
disCOP0 , disNULL , disCOP2 , disNULL , disNULL, disNULL, disNULL , disNULL ,
disNULL , disNULL , disNULL , disNULL , disNULL, disNULL, disNULL , disNULL ,
disLB , disLH , disLWL , disLW , disLBU , disLHU , disLWR , disNULL ,
disSB , disSH , disSWL , disSW , disNULL, disNULL, disSWR , disNULL ,
disNULL , disNULL , disLWC2 , disNULL , disNULL, disNULL, disNULL , disNULL ,
disNULL , disNULL , disSWC2 , disHLE , disNULL, disNULL, disNULL , disNULL };
MakeDisFg(disR3000AF, disR3000A[code >> 26](code, pc))
#endif