451ab91e |
1 | /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * |
2 | * Mupen64plus - r4300prof.c * |
3 | * Mupen64Plus homepage: http://code.google.com/p/mupen64plus/ * |
4 | * Copyright (C) 2008 Richard Goedeken * |
5 | * * |
6 | * This program is free software; you can redistribute it and/or modify * |
7 | * it under the terms of the GNU General Public License as published by * |
8 | * the Free Software Foundation; either version 2 of the License, or * |
9 | * (at your option) any later version. * |
10 | * * |
11 | * This program is distributed in the hope that it will be useful, * |
12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of * |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * |
14 | * GNU General Public License for more details. * |
15 | * * |
16 | * You should have received a copy of the GNU General Public License * |
17 | * along with this program; if not, write to the * |
18 | * Free Software Foundation, Inc., * |
19 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. * |
20 | * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */ |
21 | |
22 | #include <stdio.h> |
23 | #include <stdlib.h> |
24 | #include <string.h> |
25 | |
26 | /* Global data */ |
27 | unsigned int instr_samples[132]; |
28 | char instr_name[][10] = |
29 | { |
30 | "reserved", "NI", "J", "JAL", "BEQ", "BNE", "BLEZ", "BGTZ", |
31 | "ADDI", "ADDIU", "SLTI", "SLTIU", "ANDI", "ORI", "XORI", "LUI", |
32 | "BEQL", "BNEL", "BLEZL", "BGTZL", "DADDI", "DADDIU", "LDL", "LDR", |
33 | "LB", "LH", "LW", "LWL", "LBU", "LHU", "LWU", "LWR", |
34 | "SB", "SH", "SW", "SWL", "SWR", "SDL", "SDR", "LWC1", |
35 | "LDC1", "LD", "LL", "SWC1", "SDC1", "SD", "SC", "BLTZ", |
36 | "BGEZ", "BLTZL", "BGEZL", "BLTZAL", "BGEZAL", "BLTZALL", "BGEZALL", "SLL", |
37 | "SRL", "SRA", "SLLV", "SRLV", "SRAV", "JR", "JALR", "SYSCALL", |
38 | "MFHI", "MTHI", "MFLO", "MTLO", "DSLLV", "DSRLV", "DSRAV", "MULT", |
39 | "MULTU", "DIV", "DIVU", "DMULT", "DMULTU", "DDIV", "DDIVU", "ADD", |
40 | "ADDU", "SUB", "SUBU", "AND", "OR", "XOR", "NOR", "SLT", |
41 | "SLTU", "DADD", "DADDU", "DSUB", "DSUBU", "DSLL", "DSRL", "DSRA", |
42 | "TEQ", "DSLL32", "DSRL32", "DSRA32", "BC1F", "BC1T", "BC1FL", "BC1TL", |
43 | "TLBWI", "TLBP", "TLBR", "TLBWR", "ERET", "MFC0", "MTC0", "MFC1", |
44 | "DMFC1", "CFC1", "MTC1", "DMTC1", "CTC1", "f.CVT", "f.CMP", "f.ADD", |
45 | "f.SUB", "f.MUL", "f.DIV", "f.SQRT", "f.ABS", "f.MOV", "f.NEG", "f.ROUND", |
46 | "f.TRUNC", "f.CEIL", "f.FLOOR" |
47 | }; |
48 | unsigned int instr_type[131] = { 9, 10, 6, 6, 7, 7, 7, 7, 3, 3, 4, 4, 3, 4, 4, 0, |
49 | 7, 7, 7, 7, 4, 4, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
50 | 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 1, 1, 1, 1, 7, |
51 | 7, 7, 7, 7, 7, 7, 7, 3, 3, 3, 3, 3, 3, 6, 6, 10, |
52 | 2, 2, 2, 2, 4, 4, 4, 3, 3, 3, 3, 4, 4, 4, 4, 3, |
53 | 3, 3, 3, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, |
54 | 8, 4, 4, 4, 7, 7, 7, 7, 10, 10, 10, 10, 8, 2, 2, 2, |
55 | 2, 2, 2, 2, 2, 2, 5, 5, 5, 5, 5, 5, 5, 2, 5, 5, |
56 | 5, 5, 5 }; |
57 | char instr_typename[][20] = { "Load", "Store", "Data move/convert", "32-bit math", "64-bit math", "Float Math", |
58 | "Jump", "Branch", "Exceptions", "Reserved", "Other" }; |
59 | |
60 | /* Global functions */ |
61 | int GetInstrType(int opcode); |
62 | int AddrCompare(const void *, const void *); |
63 | int ParseProfLine(const char *pchIn, long *plAddress, int *piSamples, float *pfPercentage); |
64 | |
65 | /* defined types */ |
66 | typedef struct __attribute__ ((__packed__)) |
67 | { |
68 | int mipsop; |
69 | long x86addr; |
70 | } r4300op; |
71 | |
72 | typedef struct |
73 | { |
74 | long x86addr; |
75 | int samples; |
76 | } profilehit; |
77 | |
78 | /* static functions */ |
79 | static int isSpace(char ch) |
80 | { |
81 | return (ch == ' ' || ch == '\t' ? 1 : 0); |
82 | } |
83 | |
84 | static int isNum(char ch) |
85 | { |
86 | return (ch >= '0' && ch <= '9' ? 1 : 0); |
87 | } |
88 | |
89 | static int isFloat(char ch) |
90 | { |
91 | return ((ch >= '0' && ch <= '9') || ch == '.' || ch == '+' || ch == '-' || ch == 'e' ? 1 : 0); |
92 | } |
93 | |
94 | static int isHex(char ch) |
95 | { |
96 | return ((ch >= '0' && ch <= '9') || ((ch & 0xdf) >= 'A' && (ch & 0xdf) <= 'F') ? 1 : 0); |
97 | } |
98 | |
99 | /* main */ |
100 | int main(int argc, void *argv[]) |
101 | { |
102 | long lOpStart, lOpEnd; |
103 | int flength, oplistlength, totaltime, proflistlength; |
104 | int samp_unknown, samp_blockend, samp_notcompiled, samp_wrappers, samp_flush; |
105 | int i, j; |
106 | FILE *pfIn; |
107 | r4300op *pOpAddrTable; |
108 | profilehit *pProfTable; |
109 | char *pch, *pchSampleData; |
110 | |
111 | /* check arguments */ |
112 | if (argc < 3) |
113 | { |
114 | printf("Usage: r4300prof r4300addr.dat x86profile.txt\n\n"); |
115 | printf("r4300addr.dat - binary table of r4300 opcodes and corresponding x86 starting addresses\n"); |
116 | printf("x86profile.txt - text file containing a list of profile sample counts by x86 address on the heap\n\n"); |
117 | return 1; |
118 | } |
119 | |
120 | /* open r4300 opcode/x86 address table generated from emulator run */ |
121 | printf("Loading %s...\n", argv[1]); |
122 | pfIn = fopen(argv[1], "rb"); |
123 | if (pfIn == NULL) |
124 | { |
125 | printf("Couldn't open input file: %s\n", argv[1]); |
126 | return 2; |
127 | } |
128 | |
129 | /* get file length and calculate number of r4300op table entries */ |
130 | fseek(pfIn, 0L, SEEK_END); |
131 | flength = (int) ftell(pfIn); |
132 | fseek(pfIn, 0L, SEEK_SET); |
133 | oplistlength = flength / sizeof(r4300op); |
134 | |
135 | /* read the file */ |
136 | pOpAddrTable = (r4300op *) malloc(flength); |
137 | if (pOpAddrTable == NULL) |
138 | { |
139 | printf("Failed to allocate %i bytes for OpAddrTable!\n", flength); |
140 | fclose(pfIn); |
141 | return 3; |
142 | } |
143 | fread(pOpAddrTable, 1, flength, pfIn); |
144 | fclose(pfIn); |
145 | printf("%i r4300 instruction locations read.\n", oplistlength); |
146 | |
147 | /* sort the opcode/address table according to x86addr */ |
148 | qsort(pOpAddrTable, oplistlength, sizeof(r4300op), AddrCompare); |
149 | |
150 | /* remove any 0-length r4300 instructions */ |
151 | i = 0; |
152 | j = 0; |
153 | while (i < oplistlength) |
154 | { |
155 | pOpAddrTable[j].mipsop = pOpAddrTable[i].mipsop; |
156 | pOpAddrTable[j].x86addr = pOpAddrTable[i].x86addr; |
157 | i++; |
158 | if (pOpAddrTable[j].x86addr != pOpAddrTable[i].x86addr) |
159 | j++; |
160 | } |
161 | oplistlength = j; |
162 | printf("%i non-empty MIPS instructions.\n", oplistlength); |
163 | |
164 | /* convert each r4300 opcode to an instruction type index */ |
165 | for (i = 0; i < oplistlength; i++) |
166 | if (pOpAddrTable[i].mipsop > 0 || pOpAddrTable[i].mipsop < -16) |
167 | pOpAddrTable[i].mipsop = GetInstrType(pOpAddrTable[i].mipsop); |
168 | |
169 | /* open the profiling sample data file */ |
170 | printf("Loading %s...\n", argv[2]); |
171 | pfIn = fopen(argv[2], "rb"); |
172 | if (pfIn == NULL) |
173 | { |
174 | printf("Couldn't open input file: %s\n", argv[2]); |
175 | free(pOpAddrTable); |
176 | return 4; |
177 | } |
178 | |
179 | /* load it */ |
180 | fseek(pfIn, 0L, SEEK_END); |
181 | flength = (int) ftell(pfIn); |
182 | fseek(pfIn, 0L, SEEK_SET); |
183 | pchSampleData = (char *) malloc(flength + 16); |
184 | if (pchSampleData == NULL) |
185 | { |
186 | printf("Failed to allocate %i bytes for pchSampleData!\n", flength + 16); |
187 | fclose(pfIn); |
188 | free(pOpAddrTable); |
189 | return 5; |
190 | } |
191 | fread(pchSampleData, 1, flength, pfIn); |
192 | pchSampleData[flength] = 0; |
193 | fclose(pfIn); |
194 | |
195 | /* count the number of newlines in the ascii-formatted sample data file */ |
196 | proflistlength = 1; |
197 | pch = pchSampleData; |
198 | while (pch = strchr(pch, '\n')) |
199 | { |
200 | proflistlength++; |
201 | pch++; |
202 | } |
203 | printf("%i lines in sample data file.\n", proflistlength); |
204 | |
205 | /* extract text data into binary table */ |
206 | pProfTable = (profilehit *) malloc(proflistlength * sizeof(profilehit)); |
207 | if (pProfTable == NULL) |
208 | { |
209 | printf("Failed to allocate %i bytes for pProfTable!\n", proflistlength * sizeof(profilehit)); |
210 | free(pOpAddrTable); |
211 | free(pchSampleData); |
212 | return 6; |
213 | } |
214 | pch = pchSampleData; |
215 | j = 0; |
216 | long long llOffset = 0; |
217 | while (j < proflistlength) |
218 | { |
219 | long lAddress; |
220 | int iSamples; |
221 | float fPercentage; |
222 | char *pchNext = strchr(pch, '\n'); |
223 | if (pchNext != NULL) *pchNext++ = 0; // null-terminate this line |
224 | if (strstr(pch, "range:0x") != NULL) // search for offset change |
225 | { |
226 | pch = strstr(pch, "range:0x") + 8; // extract hex value and update our offset |
227 | char *pch2 = pch; |
228 | while (isHex(*pch2)) pch2++; |
229 | *pch2 = 0; |
230 | llOffset = strtoll(pch, NULL, 16); |
231 | } |
232 | else // parse line for sample point |
233 | { |
234 | int rval = ParseProfLine(pch, &lAddress, &iSamples, &fPercentage); |
235 | if (rval != 0) |
236 | { |
237 | pProfTable[j].x86addr = (unsigned long) (lAddress + llOffset); |
238 | pProfTable[j].samples = iSamples; |
239 | j++; |
240 | } |
241 | } |
242 | pch = pchNext; |
243 | if (pch == NULL) break; |
244 | } |
245 | free(pchSampleData); |
246 | proflistlength = j; |
247 | printf("Found %i profile hits.\n", proflistlength); |
248 | |
249 | /* clear r4300 instruction sample data table */ |
250 | for (i = 0; i < 132; i++) |
251 | instr_samples[i] = 0; |
252 | |
253 | /* calculate r4300 instruction profiling data by merging the tables */ |
254 | samp_unknown = 0; |
255 | samp_blockend = 0; |
256 | samp_notcompiled = 0; |
257 | samp_wrappers = 0; |
258 | samp_flush = 0; |
259 | i = 0; // i == OpAddrTable index |
260 | lOpStart = pOpAddrTable[0].x86addr; |
261 | lOpEnd = pOpAddrTable[1].x86addr; |
262 | for (j = 0; j < proflistlength; j++) // j == pProfTable index |
263 | { |
264 | long lOpx86addr = pProfTable[j].x86addr; |
265 | if (lOpx86addr >= lOpStart && lOpx86addr <= lOpEnd) /* these profile samples lie within current r4300 instruction */ |
266 | { |
267 | int instr = pOpAddrTable[i].mipsop; |
268 | if (instr == -1) printf("%lx sample point lies between %i/%lx and %i/%lx\n", lOpx86addr, instr, lOpStart, pOpAddrTable[i+1].mipsop, lOpEnd); |
269 | |
270 | if (instr == -1) |
271 | samp_unknown += pProfTable[j].samples; |
272 | else if (instr == -2) |
273 | samp_notcompiled += pProfTable[j].samples; |
274 | else if (instr == -3) |
275 | samp_blockend += pProfTable[j].samples; |
276 | else if (instr == -4) |
277 | samp_wrappers += pProfTable[j].samples; |
278 | else if (instr == -5) |
279 | samp_flush += pProfTable[j].samples; |
280 | else |
281 | instr_samples[instr] += pProfTable[j].samples; |
282 | continue; |
283 | } |
284 | if (lOpx86addr < pOpAddrTable[0].x86addr || lOpx86addr >= pOpAddrTable[oplistlength-1].x86addr) |
285 | { /* outside the range of all recompiled instructions */ |
286 | samp_unknown += pProfTable[j].samples; |
287 | continue; |
288 | } |
289 | if (lOpx86addr < lOpStart) /* discontinuity in profile list, go back to start */ |
290 | { |
291 | i = 0; |
292 | lOpStart = pOpAddrTable[0].x86addr; |
293 | lOpEnd = pOpAddrTable[1].x86addr; |
294 | j--; |
295 | continue; |
296 | } |
297 | /* this profile point is ahead of current r4300 instruction */ |
298 | do /* race ahead in r4300 opcode list until we hit this profile sample point */ |
299 | { |
300 | i++; |
301 | } while (i+1 < oplistlength && lOpx86addr > pOpAddrTable[i+1].x86addr); |
302 | lOpStart = pOpAddrTable[i].x86addr; |
303 | lOpEnd = pOpAddrTable[i+1].x86addr; |
304 | if (lOpx86addr < lOpStart || lOpx86addr > lOpEnd) |
305 | { |
306 | printf("Error: lOpx86addr = %lx but lOpStart, lOpEnd = %lx, %lx\n", lOpx86addr, lOpStart, lOpEnd); |
307 | return 7; |
308 | } |
309 | /* we have found the correct r4300 instruction corresponding to this profile point */ |
310 | j--; |
311 | } |
312 | |
313 | /* print the results */ |
314 | unsigned int iTypeCount[11] = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}; |
315 | printf("\nInstruction time (samples):\n"); |
316 | totaltime = 0; |
317 | for (i = 0; i < 131; i++) |
318 | { |
319 | printf("%8s: %08i ", instr_name[i], instr_samples[i]); |
320 | if (i % 5 == 4) printf("\n"); |
321 | iTypeCount[instr_type[i]] += instr_samples[i]; |
322 | totaltime += instr_samples[i]; |
323 | } |
324 | int special = samp_flush + samp_wrappers + samp_notcompiled + samp_blockend; |
325 | printf("\n\nSpecial code samples:\n"); |
326 | printf(" Regcache flushing: %i\n", samp_flush); |
327 | printf(" Jump wrappers: %i\n", samp_wrappers); |
328 | printf(" NOTCOMPILED: %i\n", samp_notcompiled); |
329 | printf(" block postfix & link samples: %i\n", samp_blockend); |
330 | |
331 | printf("\nUnaccounted samples: %i\n", samp_unknown); |
332 | printf("Total accounted instruction samples: %i\n", totaltime + special); |
333 | for (i = 0; i < 11; i++) |
334 | { |
335 | printf("%20s: %04.1f%% (%i)\n", instr_typename[i], (float) iTypeCount[i] * 100.0 / totaltime, iTypeCount[i]); |
336 | } |
337 | |
338 | free(pOpAddrTable); |
339 | free(pProfTable); |
340 | return 0; |
341 | } |
342 | |
343 | int AddrCompare(const void *p1, const void *p2) |
344 | { |
345 | const r4300op *pOp1 = (const r4300op *) p1; |
346 | const r4300op *pOp2 = (const r4300op *) p2; |
347 | |
348 | if (pOp1->x86addr < pOp2->x86addr) |
349 | return -1; |
350 | else if (pOp1->x86addr == pOp2->x86addr) |
351 | return (int) (pOp1 - pOp2); /* this forces qsort to be stable */ |
352 | else |
353 | return 1; |
354 | } |
355 | |
356 | int ParseProfLine(const char *pchIn, long *plAddress, int *piSamples, float *pfPercentage) |
357 | { |
358 | char chVal[128], *pchOut; |
359 | |
360 | /* skip any initial whitespace */ |
361 | while (isSpace(*pchIn)) pchIn++; |
362 | if (!isHex(*pchIn)) return 0; |
363 | |
364 | /* parse hexadecimal address value */ |
365 | pchOut = chVal; |
366 | while (isHex(*pchIn)) *pchOut++ = *pchIn++; |
367 | *pchOut = 0; |
368 | if (!isSpace(*pchIn)) return 0; |
369 | *plAddress = strtol(chVal, NULL, 16); |
370 | |
371 | /* skip more whitespace */ |
372 | while (isSpace(*pchIn)) pchIn++; |
373 | if (!isNum(*pchIn)) return 0; |
374 | |
375 | /* parse decimal sample count value */ |
376 | pchOut = chVal; |
377 | while (isNum(*pchIn)) *pchOut++ = *pchIn++; |
378 | *pchOut = 0; |
379 | if (!isSpace(*pchIn)) return 0; |
380 | *piSamples = atoi(chVal); |
381 | |
382 | /* skip more whitespace */ |
383 | while (isSpace(*pchIn)) pchIn++; |
384 | if (!isFloat(*pchIn)) return 0; |
385 | |
386 | /* parse floating-point percentage value */ |
387 | pchOut = chVal; |
388 | while (isFloat(*pchIn)) *pchOut++ = *pchIn++; |
389 | *pchOut = 0; |
390 | if (!isSpace(*pchIn) && *pchIn != '\r' && *pchIn != '\n' && *pchIn != 0) return 0; |
391 | *pfPercentage = atof(chVal); |
392 | |
393 | /* if this isn't the end of the line, it's not a valid sample point */ |
394 | while (isSpace(*pchIn)) pchIn++; |
395 | if (*pchIn != '\r' && *pchIn != '\n' && *pchIn != 0) return 0; |
396 | |
397 | return 1; |
398 | } |
399 | |
400 | static int InstrTypeStd[64] = |
401 | { |
402 | -1, -1, 02, 03, 04, 05, 06, 07, 8, 9, 10, 11, 12, 13, 14, 15, |
403 | -1, -1, 00, 00, 16, 17, 18, 19, 20, 21, 22, 23, 00, 00, 00, 00, |
404 | 24, 25, 27, 26, 28, 29, 31, 30, 32, 33, 35, 34, 37, 38, 36, 01, |
405 | 42, 39, 00, 00, 01, 40, 00, 41, 46, 43, 00, 00, 01, 44, 00, 45 |
406 | }; |
407 | |
408 | static int InstrTypeSpecial[64] = |
409 | { |
410 | 55, 00, 56, 57, 58, 00, 59, 60, |
411 | 61, 62, 00, 00, 63, 01, 00, 00, |
412 | 64, 65, 66, 67, 68, 00, 69, 70, |
413 | 71, 72, 73, 74, 75, 76, 77, 78, |
414 | 79, 80, 81, 82, 83, 84, 85, 86, |
415 | 00, 00, 87, 88, 89, 90, 91, 92, |
416 | 01, 01, 01, 01, 96, 00, 01, 00, |
417 | 93, 00, 94, 95, 97, 00, 98, 99 |
418 | }; |
419 | |
420 | static int InstrTypeRegImm[32] = |
421 | { |
422 | 47, 48, 49, 50, 00, 00, 00, 00, 01, 01, 01, 01, 01, 00, 01, 00, |
423 | 51, 52, 53, 54, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00 |
424 | }; |
425 | |
426 | static int InstrTypeCop1[32] = |
427 | { |
428 | 111, 112, 113, 00, 114, 115, 116, 00, |
429 | -1, 00, 00, 00, 00, 00, 00, 00, |
430 | -1, -1, 00, 00, -1, -1, 00, 00, |
431 | 00, 00, 00, 00, 00, 00, 00, 00 |
432 | }; |
433 | |
434 | static int InstrTypeCop1Math[64] = |
435 | { |
436 | 119, 120, 121, 122, 123, 124, 125, 126, |
437 | 127, 128, 129, 130, 127, 128, 129, 130, |
438 | 00, 00, 00, 00, 00, 00, 00, 00, |
439 | 00, 00, 00, 00, 00, 00, 00, 00, |
440 | 117, 117, 00, 00, 117, 117, 00, 00, |
441 | 00, 00, 00, 00, 00, 00, 00, 00, |
442 | 118, 118, 118, 118, 118, 118, 118, 118, |
443 | 118, 118, 118, 118, 118, 118, 118, 118 |
444 | }; |
445 | |
446 | |
447 | int GetInstrType(int opcode) |
448 | { |
449 | int iType = (opcode >> 26) & 63; |
450 | |
451 | if (iType == 0) |
452 | { |
453 | /* SPECIAL instruction */ |
454 | iType = opcode & 63; |
455 | return InstrTypeSpecial[iType]; |
456 | } |
457 | else if (iType == 1) |
458 | { |
459 | /* REGIMM instruction */ |
460 | iType = (opcode >> 16) & 31; |
461 | return InstrTypeRegImm[iType]; |
462 | } |
463 | else if (iType == 16) |
464 | { |
465 | /* COP0 instruction */ |
466 | int iType1 = opcode & 0x01FFFFFF; |
467 | int iType2 = (opcode >> 21) & 31; |
468 | if (iType1 == 1) |
469 | return 106; // TLBR |
470 | else if (iType1 == 2) |
471 | return 104; // TLBWI |
472 | else if (iType1 == 6) |
473 | return 107; // TLBWR |
474 | else if (iType1 == 8) |
475 | return 105; // TLBP |
476 | else if (iType1 == 24) |
477 | return 108; // ERET |
478 | else if ((opcode & 0x7FF) == 0 && iType2 == 0) |
479 | return 109; // MFC0 |
480 | else if ((opcode & 0x7FF) == 0 && iType2 == 4) |
481 | return 110; // MTC0 |
482 | else |
483 | return 0; // reserved |
484 | } |
485 | else if (iType == 17) |
486 | { |
487 | /* COP1 instruction */ |
488 | int iType1 = (opcode >> 21) & 31; |
489 | if (iType1 == 8) |
490 | { |
491 | /* conditional branch */ |
492 | int iType2 = (opcode >> 16) & 31; |
493 | if (iType2 == 0) |
494 | return 100; // BC1F |
495 | else if (iType2 == 1) |
496 | return 101; // BC1T |
497 | else if (iType2 == 2) |
498 | return 102; // BC1FL |
499 | else if (iType2 == 3) |
500 | return 103; // BC1TL |
501 | else |
502 | return 0; // reserved |
503 | } |
504 | else if (iType1 == 16 || iType1 == 17 || iType1 == 20 || iType1 == 21) |
505 | { |
506 | /* Single, Double, Word, Long instructions */ |
507 | int iType2 = opcode & 63; |
508 | return InstrTypeCop1Math[iType2]; |
509 | } |
510 | else |
511 | { |
512 | /* other Cop1 (move) */ |
513 | return InstrTypeCop1[iType1]; |
514 | } |
515 | } |
516 | |
517 | /* standard MIPS instruction */ |
518 | return InstrTypeStd[iType]; |
519 | } |
520 | |