| 1 |
/* |
| 2 |
* mon_ppc.cpp - PowerPC disassembler |
| 3 |
* |
| 4 |
* (C) 1997-1999 Christian Bauer |
| 5 |
*/ |
| 6 |
|
| 7 |
#include <stdio.h> |
| 8 |
|
| 9 |
#include "mon.h" |
| 10 |
#include "mon_ppc.h" |
| 11 |
|
| 12 |
|
| 13 |
// Instruction fields |
| 14 |
static int primop, exop, ra, rb, rc, rd; |
| 15 |
static unsigned short imm; |
| 16 |
|
| 17 |
|
| 18 |
// Codes for trap instructions |
| 19 |
static char *to_code[32] = { |
| 20 |
NULL, "lgt", "llt", NULL, "eq", "lge", "lle", NULL, |
| 21 |
"gt", NULL, NULL, NULL, "ge", NULL, NULL, NULL, |
| 22 |
"lt", NULL, NULL, NULL, "le", NULL, NULL, NULL, |
| 23 |
"ne", NULL, NULL, NULL, NULL, NULL, NULL, "" |
| 24 |
}; |
| 25 |
|
| 26 |
|
| 27 |
// Macros for instruction forms |
| 28 |
#define iform(s, t) fprintf(f, "%s\t$%08x\n", s, t) |
| 29 |
|
| 30 |
#define bform(s, t) \ |
| 31 |
if (rd == 0) \ |
| 32 |
fprintf(f, "bdnzf%s\t%d,$%08x\n", s, ra, t); \ |
| 33 |
else if (rd == 2) \ |
| 34 |
fprintf(f, "bdzf%s\t%d,$%08x\n", s, ra, t); \ |
| 35 |
else if (rd == 4) { \ |
| 36 |
if (ra == 0) \ |
| 37 |
fprintf(f, "bge%s\t$%08x\n", s, t); \ |
| 38 |
else if (ra == 1) \ |
| 39 |
fprintf(f, "ble%s\t$%08x\n", s, t); \ |
| 40 |
else if (ra == 2) \ |
| 41 |
fprintf(f, "bne%s\t$%08x\n", s, t); \ |
| 42 |
else \ |
| 43 |
fprintf(f, "bf%s\t%d,$%08x\n", s, ra, t); \ |
| 44 |
} else if (rd == 8) \ |
| 45 |
fprintf(f, "bdnzt%s\t%d,$%08x\n", s, ra, t); \ |
| 46 |
else if (rd == 10) \ |
| 47 |
fprintf(f, "bdzt%s\t%d,$%08x\n", s, ra, t); \ |
| 48 |
else if (rd == 12) { \ |
| 49 |
if (ra == 0) \ |
| 50 |
fprintf(f, "blt%s\t$%08x\n", s, t); \ |
| 51 |
else if (ra == 1) \ |
| 52 |
fprintf(f, "bgt%s\t$%08x\n", s, t); \ |
| 53 |
else if (ra == 2) \ |
| 54 |
fprintf(f, "beq%s\t$%08x\n", s, t); \ |
| 55 |
else \ |
| 56 |
fprintf(f, "bt%s\t%d,$%08x\n", s, ra, t); \ |
| 57 |
} else if (rd == 16) \ |
| 58 |
fprintf(f, "bdnz%s\t$%08x\n", s, t); \ |
| 59 |
else if (rd == 18) \ |
| 60 |
fprintf(f, "bdz%s\t$%08x\n", s, t); \ |
| 61 |
else \ |
| 62 |
fprintf(f, "bc%s\t%d,%d,$%08x\n", s, rd, ra, t) |
| 63 |
|
| 64 |
#define scform(s) fprintf(f, s "\n") |
| 65 |
|
| 66 |
#define dform_ls(s) \ |
| 67 |
if (ra == 0) \ |
| 68 |
fprintf(f, "%s\tr%d,$%08x\n", s, rd, short(imm)); \ |
| 69 |
else \ |
| 70 |
fprintf(f, "%s\tr%d,$%04x(r%d)\n", s, rd, short(imm), ra) |
| 71 |
#define dform_fls(s) \ |
| 72 |
if (ra == 0) \ |
| 73 |
fprintf(f, "%s\tfr%d,$%08x\n", s, rd, short(imm)); \ |
| 74 |
else \ |
| 75 |
fprintf(f, "%s\tfr%d,$%04x(r%d)\n", s, rd, short(imm), ra) |
| 76 |
#define dform_simm(s) fprintf(f, "%s\tr%d,r%d,$%04x\n", s, rd, ra, short(imm)) |
| 77 |
#define dform_simmn(s) fprintf(f, "%s\tr%d,r%d,$%04x\n", s, rd, ra, (-imm) & 0xffff) |
| 78 |
#define dform_uimm(s) fprintf(f, "%s\tr%d,r%d,$%04x\n", s, ra, rd, imm) |
| 79 |
#define dform_crs(s) fprintf(f, "%s\tcrf%d,r%d,$%04x\n", s, rd >> 2, ra, short(imm)) |
| 80 |
#define dform_cru(s) fprintf(f, "%s\tcrf%d,r%d,$%04x\n", s, rd >> 2, ra, imm) |
| 81 |
#define dform_to(s) fprintf(f, "%s\t%d,r%d,$%04x\n", s, rd, ra, short(imm)) |
| 82 |
|
| 83 |
#define dsform(s) fprintf(f, "%s\tr%d,$%04x(r%d)\n", s, rd, short(imm & 0xfffc), ra) |
| 84 |
|
| 85 |
#define xform_ls(s) \ |
| 86 |
if (ra == 0) \ |
| 87 |
fprintf(f, "%s\tr%d,r%d\n", s, rd, rb); \ |
| 88 |
else \ |
| 89 |
fprintf(f, "%s\tr%d,r%d,r%d\n", s, rd, ra, rb) |
| 90 |
#define xform_fls(s) \ |
| 91 |
if (ra == 0) \ |
| 92 |
fprintf(f, "%s\tfr%d,r%d\n", s, rd, rb); \ |
| 93 |
else \ |
| 94 |
fprintf(f, "%s\tfr%d,r%d,r%d\n", s, rd, ra, rb) |
| 95 |
#define xform_lsswi(s) \ |
| 96 |
if (ra == 0) \ |
| 97 |
fprintf(f, "%s\tr%d,%d\n", s, rd, rb ? rb : 32); \ |
| 98 |
else \ |
| 99 |
fprintf(f, "%s\tr%d,r%d,%d\n", s, rd, ra, rb ? rb : 32) |
| 100 |
#define xform_db(s) fprintf(f, "%s\tr%d,r%d\n", s, rd, rb) |
| 101 |
#define xform_d(s) fprintf(f, "%s\tr%d\n", s, rd) |
| 102 |
#define xform_fsr(s) fprintf(f, s "\tr%d,%d\n", rd, ra & 0xf) |
| 103 |
#define xform_sabc(s) fprintf(f, "%s%s\tr%d,r%d,r%d\n", s, w & 1 ? "." : "", ra, rd, rb) |
| 104 |
#define xform_sac(s) fprintf(f, "%s%s\tr%d,r%d\n", s, w & 1 ? "." : "", ra, rd) |
| 105 |
#define xform_tsr(s) fprintf(f, s "\t%d,r%d\n", ra & 0xf, rd) |
| 106 |
#define xform_sash(s) fprintf(f, s "%s\tr%d,r%d,%d\n", w & 1 ? "." : "", ra, rd, rb) |
| 107 |
#define xform_crlab(s) fprintf(f, "%s\tcrf%d,r%d,r%d\n", s, rd >> 2, ra, rb) |
| 108 |
#define xform_fcrab(s) fprintf(f, "%s\tcrf%d,fr%d,fr%d\n", s, rd >> 2, ra, rb) |
| 109 |
#define xform_crcr(s) fprintf(f, "%s\tcrf%d,crf%d\n", s, rd >> 2, ra >> 2) |
| 110 |
#define xform_cr(s) fprintf(f, "%s\tcrf%d\n", s, rd >> 2) |
| 111 |
#define xform_cri(s) fprintf(f, s "%s\tcrf%d,%d\n", w & 1 ? "." : "", rd >> 2, rb >> 1) |
| 112 |
#define xform_to(s) fprintf(f, "%s\t%d,r%d,r%d\n", s, rd, ra, rb) |
| 113 |
#define xform_fdb(s) fprintf(f, "%s%s\tfr%d,fr%d\n", s, w & 1 ? "." : "", rd, rb) |
| 114 |
#define xform_fd(s) fprintf(f, "%s%s\tfr%d\n", s, w & 1 ? "." : "", rd) |
| 115 |
#define xform_crb(s) fprintf(f, "%s%s\tcrb%d\n", s, w & 1 ? "." : "", rd) |
| 116 |
#define xform_ab(s) fprintf(f, "%s\tr%d,r%d\n", s, ra, rb) |
| 117 |
#define xform_b(s) fprintf(f, "%s\tr%d\n", s, rb) |
| 118 |
#define xform(s) fprintf(f, s "\n") |
| 119 |
|
| 120 |
#define xlform_b(s) fprintf(f, "%s\t%d,%d\n", s, rd, ra) |
| 121 |
#define xlform_cr(s) fprintf(f, "%s\tcrb%d,crb%d,crb%d\n", s, rd, ra, rb) |
| 122 |
#define xlform_crcr(s) fprintf(f, "%s\tcrf%d,crf%d\n", s, rd >> 2, ra >> 2) |
| 123 |
#define xlform(s) fprintf(f, s "\n") |
| 124 |
|
| 125 |
#define xfxform_fspr(s) fprintf(f, "%s\tr%d,SPR%d\n", s, rd, ra | (rb << 5)) |
| 126 |
#define xfxform_crm(s) fprintf(f, s "\t$%02x,r%d\n", w >> 12 & 0xff, rd) |
| 127 |
#define xfxform_tspr(s) fprintf(f, "%s\tSPR%d,r%d\n", s, ra | (rb << 5), rd) |
| 128 |
#define xfxform_tb(s) fprintf(f, "%s\tr%d\n", s, rd) |
| 129 |
|
| 130 |
#define xflform(s) fprintf(f, s "%s\t$%02x,fr%d\n", w & 1 ? "." : "", w >> 17 & 0xff, rb) |
| 131 |
|
| 132 |
#define xsform(s) fprintf(f, s "%s\tr%d,r%d,%d\n", w & 1 ? "." : "", ra, rd, rb | (w & 2 ? 32 : 0)) |
| 133 |
|
| 134 |
#define xoform_dab(s) fprintf(f, "%s%s\tr%d,r%d,r%d\n", s, w & 1 ? "." : "", rd, ra, rb) |
| 135 |
#define xoform_da(s) fprintf(f, "%s%s\tr%d,r%d\n", s, w & 1 ? "." : "", rd, ra) |
| 136 |
|
| 137 |
#define aform_dab(s) fprintf(f, "%s%s\tfr%d,fr%d,fr%d\n", s, w & 1 ? "." : "", rd, ra, rb) |
| 138 |
#define aform_db(s) fprintf(f, "%s%s\tfr%d,fr%d\n", s, w & 1 ? "." : "", rd, rb) |
| 139 |
#define aform_dac(s) fprintf(f, "%s%s\tfr%d,fr%d,fr%d\n", s, w & 1 ? "." : "", rd, ra, rc) |
| 140 |
#define aform_dacb(s) fprintf(f, "%s%s\tfr%d,fr%d,fr%d,fr%d\n", s, w & 1 ? "." : "", rd, ra, rc, rb) |
| 141 |
|
| 142 |
#define mform(s) fprintf(f, "%s%s\tr%d,r%d,r%d,$%08x\n", s, w & 1 ? "." : "", ra, rd, rb, mbme2mask(w >> 6 & 31, w >>1 & 31)) |
| 143 |
#define mform_i(s) fprintf(f, "%s%s\tr%d,r%d,%d,$%08x\n", s, w & 1 ? "." : "", ra, rd, rb, mbme2mask(w >> 6 & 31, w >>1 & 31)) |
| 144 |
|
| 145 |
#define mdform(s) fprintf(f, "%s%s\tr%d,r%d,%d,%d\n", s, w & 1 ? "." : "", ra, rd, rb | (w & 2 ? 32 : 0), rc | (w & 32 ? 32 : 0)) |
| 146 |
|
| 147 |
#define mdsform(s) fprintf(f, "%s%s\tr%d,r%d,r%d,%d\n", s, w & 1 ? "." : "", ra, rd, rb, rc | (w & 32 ? 32 : 0)) |
| 148 |
|
| 149 |
|
| 150 |
// Prototypes |
| 151 |
static void disass19(FILE *f, unsigned int adr, unsigned int w); |
| 152 |
static void disass31(FILE *f, unsigned int adr, unsigned int w); |
| 153 |
static void disass59(FILE *f, unsigned int adr, unsigned int w); |
| 154 |
static void disass63(FILE *f, unsigned int adr, unsigned int w); |
| 155 |
static unsigned int mbme2mask(int mb, int me); |
| 156 |
static char *get_spr(int reg); |
| 157 |
|
| 158 |
|
| 159 |
/* |
| 160 |
* Disassemble one instruction |
| 161 |
*/ |
| 162 |
|
| 163 |
void disass_ppc(FILE *f, unsigned int adr, unsigned int w) |
| 164 |
{ |
| 165 |
// Divide instruction into fields |
| 166 |
primop = w >> 26; |
| 167 |
rd = w >> 21 & 0x1f; |
| 168 |
ra = w >> 16 & 0x1f; |
| 169 |
rb = w >> 11 & 0x1f; |
| 170 |
rc = w >> 6 & 0x1f; |
| 171 |
exop = w >> 1 & 0x3ff; |
| 172 |
imm = w & 0xffff; |
| 173 |
|
| 174 |
// Decode primary opcode |
| 175 |
switch (primop) { |
| 176 |
case 2: // 64 bit |
| 177 |
if (to_code[rd] != NULL) |
| 178 |
fprintf(f, "td%si\tr%d,$%04x\n", to_code[rd], ra, short(imm)); |
| 179 |
else |
| 180 |
dform_to("tdi"); |
| 181 |
break; |
| 182 |
|
| 183 |
case 3: |
| 184 |
if (to_code[rd] != NULL) |
| 185 |
fprintf(f, "tw%si\tr%d,$%04x\n", to_code[rd], ra, short(imm)); |
| 186 |
else |
| 187 |
dform_to("twi"); |
| 188 |
break; |
| 189 |
|
| 190 |
// case 4: // AltiVec |
| 191 |
|
| 192 |
case 7: dform_simm("mulli"); break; |
| 193 |
case 8: dform_simm("subfic"); break; |
| 194 |
|
| 195 |
case 10: |
| 196 |
if (rd & 1) |
| 197 |
dform_cru("cmpldi"); // 64 bit |
| 198 |
else |
| 199 |
dform_cru("cmplwi"); |
| 200 |
break; |
| 201 |
|
| 202 |
case 11: |
| 203 |
if (rd & 1) |
| 204 |
dform_crs("cmpdi"); // 64 bit |
| 205 |
else |
| 206 |
dform_crs("cmpwi"); |
| 207 |
break; |
| 208 |
|
| 209 |
case 12: |
| 210 |
if (imm < 0x8000) |
| 211 |
dform_simm("addic"); |
| 212 |
else |
| 213 |
dform_simmn("subic"); |
| 214 |
break; |
| 215 |
|
| 216 |
case 13: |
| 217 |
if (imm < 0x8000) |
| 218 |
dform_simm("addic."); |
| 219 |
else |
| 220 |
dform_simmn("subic."); |
| 221 |
break; |
| 222 |
|
| 223 |
case 14: |
| 224 |
if (ra == 0) |
| 225 |
fprintf(f, "li\tr%d,$%04x\n", rd, short(imm)); |
| 226 |
else |
| 227 |
if (imm < 0x8000) |
| 228 |
dform_simm("addi"); |
| 229 |
else |
| 230 |
dform_simmn("subi"); |
| 231 |
break; |
| 232 |
|
| 233 |
case 15: |
| 234 |
if (ra == 0) |
| 235 |
fprintf(f, "lis\tr%d,$%04x\n", rd, imm); |
| 236 |
else |
| 237 |
if (imm < 0x8000) |
| 238 |
dform_simm("addis"); |
| 239 |
else |
| 240 |
dform_simmn("subis"); |
| 241 |
break; |
| 242 |
|
| 243 |
case 16: { |
| 244 |
int target = short(imm & 0xfffc); |
| 245 |
char *form; |
| 246 |
if (w & 1) |
| 247 |
if (w & 2) |
| 248 |
form = "la"; |
| 249 |
else { |
| 250 |
form = "l"; |
| 251 |
target += adr; |
| 252 |
} |
| 253 |
else |
| 254 |
if (w & 2) |
| 255 |
form = "a"; |
| 256 |
else { |
| 257 |
form = ""; |
| 258 |
target += adr; |
| 259 |
} |
| 260 |
bform(form, target); |
| 261 |
break; |
| 262 |
} |
| 263 |
|
| 264 |
case 17: |
| 265 |
if (w & 2) |
| 266 |
scform("sc"); |
| 267 |
else |
| 268 |
fprintf(f, "?\n"); |
| 269 |
break; |
| 270 |
|
| 271 |
case 18: { |
| 272 |
int target = w & 0x03fffffc; |
| 273 |
if (target & 0x02000000) |
| 274 |
target |= 0xfc000000; |
| 275 |
if (w & 1) |
| 276 |
if (w & 2) |
| 277 |
iform("bla", target); |
| 278 |
else |
| 279 |
iform("bl", adr + target); |
| 280 |
else |
| 281 |
if (w & 2) |
| 282 |
iform("ba", target); |
| 283 |
else |
| 284 |
iform("b", adr + target); |
| 285 |
break; |
| 286 |
} |
| 287 |
|
| 288 |
case 19: disass19(f, adr, w); break; |
| 289 |
case 20: mform_i("rlwimi"); break; |
| 290 |
case 21: mform_i("rlwinm"); break; |
| 291 |
case 23: mform("rlwnm"); break; |
| 292 |
|
| 293 |
case 24: |
| 294 |
if (rd == 0 && ra == 0 && imm == 0) |
| 295 |
fprintf(f, "nop\n"); |
| 296 |
else |
| 297 |
dform_uimm("ori"); |
| 298 |
break; |
| 299 |
|
| 300 |
case 25: dform_uimm("oris"); break; |
| 301 |
case 26: dform_uimm("xori"); break; |
| 302 |
case 27: dform_uimm("xoris"); break; |
| 303 |
case 28: dform_uimm("andi."); break; |
| 304 |
case 29: dform_uimm("andis."); break; |
| 305 |
|
| 306 |
case 30: // 64 bit |
| 307 |
switch (w >> 1 & 0xf) { |
| 308 |
case 0: case 1: mdform("rldicl"); break; |
| 309 |
case 2: case 3: mdform("rldicr"); break; |
| 310 |
case 4: case 5: mdform("rldic"); break; |
| 311 |
case 6: case 7: mdform("rldimi"); break; |
| 312 |
case 8: mdsform("rldcl"); break; |
| 313 |
case 9: mdsform("rldcr"); break; |
| 314 |
default: |
| 315 |
fprintf(f, "?\n"); |
| 316 |
break; |
| 317 |
}; |
| 318 |
break; |
| 319 |
|
| 320 |
case 31: disass31(f, adr, w); break; |
| 321 |
case 32: dform_ls("lwz"); break; |
| 322 |
case 33: dform_ls("lwzu"); break; |
| 323 |
case 34: dform_ls("lbz"); break; |
| 324 |
case 35: dform_ls("lbzu"); break; |
| 325 |
case 36: dform_ls("stw"); break; |
| 326 |
case 37: dform_ls("stwu"); break; |
| 327 |
case 38: dform_ls("stb"); break; |
| 328 |
case 39: dform_ls("stbu"); break; |
| 329 |
case 40: dform_ls("lhz"); break; |
| 330 |
case 41: dform_ls("lhzu"); break; |
| 331 |
case 42: dform_ls("lha"); break; |
| 332 |
case 43: dform_ls("lhau"); break; |
| 333 |
case 44: dform_ls("sth"); break; |
| 334 |
case 45: dform_ls("sthu"); break; |
| 335 |
case 46: dform_ls("lmw"); break; |
| 336 |
case 47: dform_ls("stmw"); break; |
| 337 |
case 48: dform_fls("lfs"); break; |
| 338 |
case 49: dform_fls("lfsu"); break; |
| 339 |
case 50: dform_fls("lfd"); break; |
| 340 |
case 51: dform_fls("lfdu"); break; |
| 341 |
case 52: dform_fls("stfs"); break; |
| 342 |
case 53: dform_fls("stfsu"); break; |
| 343 |
case 54: dform_fls("stfd"); break; |
| 344 |
case 55: dform_fls("stfdu"); break; |
| 345 |
|
| 346 |
case 58: // 64 bit |
| 347 |
switch (w & 3) { |
| 348 |
case 0: dsform("ld"); break; |
| 349 |
case 1: dsform("ldu"); break; |
| 350 |
case 2: dsform("lwa"); break; |
| 351 |
default: |
| 352 |
fprintf(f, "?\n"); |
| 353 |
break; |
| 354 |
} |
| 355 |
break; |
| 356 |
|
| 357 |
case 59: disass59(f, adr, w); break; |
| 358 |
|
| 359 |
case 62: // 64 bit |
| 360 |
switch (w & 3) { |
| 361 |
case 0: dsform("std"); break; |
| 362 |
case 1: dsform("stdu"); break; |
| 363 |
default: |
| 364 |
fprintf(f, "?\n"); |
| 365 |
break; |
| 366 |
} |
| 367 |
break; |
| 368 |
|
| 369 |
case 63: disass63(f, adr, w); break; |
| 370 |
|
| 371 |
default: |
| 372 |
if (!w) |
| 373 |
fprintf(f, "illegal\n"); |
| 374 |
else |
| 375 |
fprintf(f, "?\n"); |
| 376 |
break; |
| 377 |
} |
| 378 |
} |
| 379 |
|
| 380 |
|
| 381 |
/* |
| 382 |
* Disassemble instruction with primary opcode = 19 (XL-Form) |
| 383 |
*/ |
| 384 |
|
| 385 |
static void disass19(FILE *f, unsigned int adr, unsigned int w) |
| 386 |
{ |
| 387 |
switch (exop) { |
| 388 |
case 0: xlform_crcr("mcrf"); break; |
| 389 |
|
| 390 |
case 16: |
| 391 |
if (w & 1) |
| 392 |
if (rd == 20) |
| 393 |
fprintf(f, "blrl\n"); |
| 394 |
else |
| 395 |
xlform_b("bclrl"); |
| 396 |
else |
| 397 |
if (rd == 20) |
| 398 |
fprintf(f, "blr\n"); |
| 399 |
else |
| 400 |
xlform_b("bclr"); |
| 401 |
break; |
| 402 |
|
| 403 |
case 33: |
| 404 |
if (ra == rb) |
| 405 |
fprintf(f, "crnot\tcrb%d,crb%d\n", rd, ra); |
| 406 |
else |
| 407 |
xlform_cr("crnor"); |
| 408 |
break; |
| 409 |
|
| 410 |
case 50: xlform("rfi"); break; |
| 411 |
case 129: xlform_cr("crandc"); break; |
| 412 |
case 150: xlform("isync"); break; |
| 413 |
|
| 414 |
case 193: |
| 415 |
if (ra == rd && rb == rd) |
| 416 |
fprintf(f, "crclr\tcrb%d\n", rd); |
| 417 |
else |
| 418 |
xlform_cr("crxor"); |
| 419 |
break; |
| 420 |
|
| 421 |
case 225: xlform_cr("crnand"); break; |
| 422 |
case 257: xlform_cr("crand"); break; |
| 423 |
|
| 424 |
case 289: |
| 425 |
if (ra == rd && rb == rd) |
| 426 |
fprintf(f, "crset\tcrb%d\n", rd); |
| 427 |
else |
| 428 |
xlform_cr("creqv"); |
| 429 |
break; |
| 430 |
|
| 431 |
case 417: xlform_cr("crorc"); break; |
| 432 |
|
| 433 |
case 449: |
| 434 |
if (ra == rb) |
| 435 |
fprintf(f, "crmove\tcrb%d,crb%d\n", rd, ra); |
| 436 |
else |
| 437 |
xlform_cr("cror"); |
| 438 |
break; |
| 439 |
|
| 440 |
case 528: |
| 441 |
if (w & 1) |
| 442 |
if (rd == 20) |
| 443 |
fprintf(f, "bctrl\n"); |
| 444 |
else |
| 445 |
xlform_b("bcctrl"); |
| 446 |
else |
| 447 |
if (rd == 20) |
| 448 |
fprintf(f, "bctr\n"); |
| 449 |
else |
| 450 |
xlform_b("bcctr"); |
| 451 |
break; |
| 452 |
|
| 453 |
default: |
| 454 |
fprintf(f, "?\n"); |
| 455 |
break; |
| 456 |
} |
| 457 |
} |
| 458 |
|
| 459 |
|
| 460 |
/* |
| 461 |
* Disassemble instruction with primary opcode = 31 (X-Form/XO-Form/XFX-Form/XS-Form) |
| 462 |
*/ |
| 463 |
|
| 464 |
static void disass31(FILE *f, unsigned int adr, unsigned int w) |
| 465 |
{ |
| 466 |
switch (exop) { |
| 467 |
case 0: |
| 468 |
if (rd & 1) |
| 469 |
xform_crlab("cmpd"); // 64 bit |
| 470 |
else |
| 471 |
xform_crlab("cmpw"); |
| 472 |
break; |
| 473 |
|
| 474 |
case 4: |
| 475 |
if (rd == 31 && ra == 0 && rb == 0) |
| 476 |
xform("trap"); |
| 477 |
else if (to_code[rd] != NULL) |
| 478 |
fprintf(f, "tw%s\tr%d,r%d\n", to_code[rd], ra, rb); |
| 479 |
else |
| 480 |
xform_to("tw"); |
| 481 |
break; |
| 482 |
|
| 483 |
case 8: xoform_dab("subfc"); break; |
| 484 |
case 8+512: xoform_dab("subfco"); break; |
| 485 |
case 9: case 9+512: xoform_dab("mulhdu"); break; // 64 bit |
| 486 |
case 10: xoform_dab("addc"); break; |
| 487 |
case 10+512: xoform_dab("addco"); break; |
| 488 |
case 11: case 11+512: xoform_dab("mulhwu"); break; |
| 489 |
case 19: xform_d("mfcr"); break; |
| 490 |
case 20: xform_ls("lwarx"); break; |
| 491 |
case 21: xform_ls("ldx"); break; // 64 bit |
| 492 |
case 23: xform_ls("lwzx"); break; |
| 493 |
case 24: xform_sabc("slw"); break; |
| 494 |
case 26: xform_sac("cntlzw"); break; |
| 495 |
case 27: xform_sabc("sld"); break; // 64 bit |
| 496 |
case 28: xform_sabc("and"); break; |
| 497 |
|
| 498 |
case 32: |
| 499 |
if (rd & 1) |
| 500 |
xform_crlab("cmpld"); // 64 bit |
| 501 |
else |
| 502 |
xform_crlab("cmplw"); |
| 503 |
break; |
| 504 |
|
| 505 |
case 40: xoform_dab("subf"); break; |
| 506 |
case 40+512: xoform_dab("subfo"); break; |
| 507 |
case 53: xform_ls("ldux"); break; // 64 bit |
| 508 |
case 54: xform_ab("dcbst"); break; |
| 509 |
case 55: xform_ls("lwzux"); break; |
| 510 |
case 58: xform_sac("cntlzd"); break; // 64 bit |
| 511 |
case 60: xform_sabc("andc"); break; |
| 512 |
|
| 513 |
case 68: // 64 bit |
| 514 |
if (to_code[rd] != NULL) |
| 515 |
fprintf(f, "td%s\tr%d,r%d\n", to_code[rd], ra, rb); |
| 516 |
else |
| 517 |
xform_to("td"); |
| 518 |
break; |
| 519 |
|
| 520 |
case 73: case 73+512: xoform_dab("mulhd"); break; // 64 bit |
| 521 |
case 75: case 75+512: xoform_dab("mulhw"); break; |
| 522 |
case 83: xform_d("mfmsr"); break; |
| 523 |
case 84: xform_ls("ldarx"); break; // 64 bit |
| 524 |
case 86: xform_ab("dcbf"); break; |
| 525 |
case 87: xform_ls("lbzx"); break; |
| 526 |
case 104: xoform_da("neg"); break; |
| 527 |
case 104+512: xoform_da("nego"); break; |
| 528 |
case 119: xform_ls("lbzux"); break; |
| 529 |
|
| 530 |
case 124: |
| 531 |
if (rd == rb) |
| 532 |
fprintf(f, "not%s\tr%d,r%d\n", w & 1 ? "." : "", ra, rd); |
| 533 |
else |
| 534 |
xform_sabc("nor"); |
| 535 |
break; |
| 536 |
|
| 537 |
case 136: xoform_dab("subfe"); break; |
| 538 |
case 136+512: xoform_dab("subfeo"); break; |
| 539 |
case 138: xoform_dab("adde"); break; |
| 540 |
case 138+512: xoform_dab("addeo"); break; |
| 541 |
case 144: xfxform_crm("mtcrf"); break; |
| 542 |
case 146: xform_d("mtmsr"); break; |
| 543 |
case 149: xform_ls("stdx"); break; // 64 bit |
| 544 |
|
| 545 |
case 150: |
| 546 |
if (w & 1) |
| 547 |
xform_ls("stwcx."); |
| 548 |
else |
| 549 |
fprintf(f, "?\n"); |
| 550 |
break; |
| 551 |
|
| 552 |
case 151: xform_ls("stwx"); break; |
| 553 |
case 181: xform_ls("stdux"); break; // 64 bit |
| 554 |
case 183: xform_ls("stwux"); break; |
| 555 |
case 200: xoform_da("subfze"); break; |
| 556 |
case 200+512: xoform_da("subfzeo"); break; |
| 557 |
case 202: xoform_da("addze"); break; |
| 558 |
case 202+512: xoform_da("addzeo"); break; |
| 559 |
case 210: xform_tsr("mtsr"); break; |
| 560 |
|
| 561 |
case 214: // 64 bit |
| 562 |
if (w & 1) |
| 563 |
xform_ls("stdcx"); |
| 564 |
else |
| 565 |
fprintf(f, "?\n"); |
| 566 |
break; |
| 567 |
|
| 568 |
case 215: xform_ls("stbx"); break; |
| 569 |
case 232: xoform_da("subfme"); break; |
| 570 |
case 232+512: xoform_da("subfmeo"); break; |
| 571 |
case 233: xoform_dab("mulld"); break; // 64 bit |
| 572 |
case 233+512: xoform_dab("mulldo"); break; // 64 bit |
| 573 |
case 234: xoform_da("addme"); break; |
| 574 |
case 234+512: xoform_da("addmeo"); break; |
| 575 |
case 235: xoform_dab("mullw"); break; |
| 576 |
case 235+512: xoform_dab("mullwo"); break; |
| 577 |
case 242: xform_db("mtsrin"); break; |
| 578 |
case 246: xform_ab("dcbtst"); break; |
| 579 |
case 247: xform_ls("stbux"); break; |
| 580 |
case 266: xoform_dab("add"); break; |
| 581 |
case 266+512: xoform_dab("addo"); break; |
| 582 |
case 278: xform_ab("dcbt"); break; |
| 583 |
case 279: xform_ls("lhzx"); break; |
| 584 |
case 284: xform_sabc("eqv"); break; |
| 585 |
case 306: xform_b("tlbie"); break; |
| 586 |
case 310: xform_ls("eciwx"); break; |
| 587 |
case 311: xform_ls("lhzux"); break; |
| 588 |
case 316: xform_sabc("xor"); break; |
| 589 |
|
| 590 |
case 339: |
| 591 |
if ((ra | (rb << 5)) == 1) |
| 592 |
fprintf(f, "mfxer\tr%d\n", rd); |
| 593 |
else if ((ra | (rb << 5)) == 8) |
| 594 |
fprintf(f, "mflr\tr%d\n", rd); |
| 595 |
else if ((ra | (rb << 5)) == 9) |
| 596 |
fprintf(f, "mfctr\tr%d\n", rd); |
| 597 |
else { |
| 598 |
char *spr = get_spr(ra | (rb << 5)); |
| 599 |
if (spr) |
| 600 |
fprintf(f, "mfspr\tr%d,%s\n", rd, spr); |
| 601 |
else |
| 602 |
xfxform_fspr("mfspr"); |
| 603 |
} |
| 604 |
break; |
| 605 |
|
| 606 |
case 341: xform_ls("lwax"); break; // 64 bit |
| 607 |
case 343: xform_ls("lhax"); break; |
| 608 |
case 370: xform("tlbia"); break; |
| 609 |
|
| 610 |
case 371: |
| 611 |
if ((ra | (rb << 5)) == 268) |
| 612 |
xfxform_tb("mftb"); |
| 613 |
else if ((ra | (rb << 5)) == 269) |
| 614 |
xfxform_tb("mftbu"); |
| 615 |
else |
| 616 |
fprintf(f, "?\n"); |
| 617 |
break; |
| 618 |
|
| 619 |
case 373: xform_ls("lwaux"); break; // 64 bit |
| 620 |
case 375: xform_ls("lhaux"); break; |
| 621 |
case 407: xform_ls("sthx"); break; |
| 622 |
case 412: xform_sabc("orc"); break; |
| 623 |
case 434: xform_b("slbie"); break; // 64 bit |
| 624 |
case 438: xform_ls("ecowx"); break; |
| 625 |
case 439: xform_ls("sthux"); break; |
| 626 |
|
| 627 |
case 444: |
| 628 |
if (rd == rb) |
| 629 |
fprintf(f, "mr%s\tr%d,r%d\n", w & 1 ? "." : "", ra, rd); |
| 630 |
else |
| 631 |
xform_sabc("or"); |
| 632 |
break; |
| 633 |
|
| 634 |
case 457: xoform_dab("divdu"); break; // 64 bit |
| 635 |
case 457+512: xoform_dab("divduo"); break; // 64 bit |
| 636 |
case 459: xoform_dab("divwu"); break; |
| 637 |
case 459+512: xoform_dab("divwuo"); break; |
| 638 |
|
| 639 |
case 467: |
| 640 |
if ((ra | (rb << 5)) == 1) |
| 641 |
fprintf(f, "mtxer\tr%d\n", rd); |
| 642 |
else if ((ra | (rb << 5)) == 8) |
| 643 |
fprintf(f, "mtlr\tr%d\n", rd); |
| 644 |
else if ((ra | (rb << 5)) == 9) |
| 645 |
fprintf(f, "mtctr\tr%d\n", rd); |
| 646 |
else { |
| 647 |
char *spr = get_spr(ra | (rb << 5)); |
| 648 |
if (spr) |
| 649 |
fprintf(f, "mtspr\t%s,r%d\n", spr, rd); |
| 650 |
else |
| 651 |
xfxform_tspr("mtspr"); |
| 652 |
} |
| 653 |
break; |
| 654 |
|
| 655 |
case 470: xform_ab("dcbi"); break; |
| 656 |
case 476: xform_sabc("nand"); break; |
| 657 |
case 489: xoform_dab("divd"); break; // 64 bit |
| 658 |
case 489+512: xoform_dab("divdo"); break; // 64 bit |
| 659 |
case 491: xoform_dab("divw"); break; |
| 660 |
case 491+512: xoform_dab("divwo"); break; |
| 661 |
case 498: xform("slbia"); break; // 64 bit |
| 662 |
case 512: xform_cr("mcrxr"); break; |
| 663 |
case 533: xform_ls("lswx"); break; |
| 664 |
case 534: xform_ls("lwbrx"); break; |
| 665 |
case 535: xform_fls("lfsx"); break; |
| 666 |
case 536: xform_sabc("srw"); break; |
| 667 |
case 539: xform_sabc("srd"); break; // 64 bit |
| 668 |
case 566: xform("tlbsync"); break; |
| 669 |
case 567: xform_fls("lfsux"); break; |
| 670 |
case 595: xform_fsr("mfsr"); break; |
| 671 |
case 597: xform_lsswi("lswi"); break; |
| 672 |
case 598: xform("sync"); break; |
| 673 |
case 599: xform_fls("lfdx"); break; |
| 674 |
case 631: xform_fls("lfdux"); break; |
| 675 |
case 659: xform_db("mfsrin"); break; |
| 676 |
case 661: xform_ls("stswx"); break; |
| 677 |
case 662: xform_ls("stwbrx"); break; |
| 678 |
case 663: xform_fls("stfsx"); break; |
| 679 |
case 695: xform_fls("stfsux"); break; |
| 680 |
case 725: xform_lsswi("stswi"); break; |
| 681 |
case 727: xform_fls("stfdx"); break; |
| 682 |
case 758: xform_ab("dcba"); break; |
| 683 |
case 759: xform_fls("stfdux"); break; |
| 684 |
case 790: xform_ls("lhbrx"); break; |
| 685 |
case 792: xform_sabc("sraw"); break; |
| 686 |
case 794: xform_sabc("srad"); break; // 64 bit |
| 687 |
case 824: xform_sash("srawi"); break; |
| 688 |
case 826: case 827: xsform("sradi"); break; // 64 bit |
| 689 |
case 854: xform("eieio"); break; |
| 690 |
case 918: xform_ls("sthbrx"); break; |
| 691 |
case 922: xform_sac("extsh"); break; |
| 692 |
case 954: xform_sac("extsb"); break; |
| 693 |
case 978: fprintf(f, "tlbld\tr%d\n", rb); break; // 603 |
| 694 |
case 982: xform_ab("icbi"); break; |
| 695 |
case 983: xform_fls("stfiwx"); break; |
| 696 |
case 986: xform_sac("extsw"); break; // 64 bit |
| 697 |
case 1010: fprintf(f, "tlbli\tr%d\n", rb); break; // 603 |
| 698 |
case 1014: xform_ab("dcbz"); break; |
| 699 |
|
| 700 |
default: |
| 701 |
fprintf(f, "?\n"); |
| 702 |
break; |
| 703 |
} |
| 704 |
} |
| 705 |
|
| 706 |
|
| 707 |
/* |
| 708 |
* Disassemble instruction with primary opcode = 59 (A-Form) |
| 709 |
*/ |
| 710 |
|
| 711 |
static void disass59(FILE *f, unsigned int adr, unsigned int w) |
| 712 |
{ |
| 713 |
switch (exop & 0x1f) { |
| 714 |
case 18: aform_dab("fdivs"); break; |
| 715 |
case 20: aform_dab("fsubs"); break; |
| 716 |
case 21: aform_dab("fadds"); break; |
| 717 |
case 22: aform_db("fsqrts"); break; |
| 718 |
case 24: aform_db("fres"); break; |
| 719 |
case 25: aform_dac("fmuls"); break; |
| 720 |
case 28: aform_dacb("fmsubs"); break; |
| 721 |
case 29: aform_dacb("fmadds"); break; |
| 722 |
case 30: aform_dacb("fnmsubs"); break; |
| 723 |
case 31: aform_dacb("fnmadds"); break; |
| 724 |
|
| 725 |
default: |
| 726 |
fprintf(f, "?\n"); |
| 727 |
break; |
| 728 |
} |
| 729 |
} |
| 730 |
|
| 731 |
|
| 732 |
/* |
| 733 |
* Disassemble instruction with primary opcode = 63 (A-Form/X-Form/XFL-Form) |
| 734 |
*/ |
| 735 |
|
| 736 |
static void disass63(FILE *f, unsigned int adr, unsigned int w) |
| 737 |
{ |
| 738 |
if (exop & 0x10) |
| 739 |
switch (exop & 0x1f) { |
| 740 |
case 18: aform_dab("fdiv"); break; |
| 741 |
case 20: aform_dab("fsub"); break; |
| 742 |
case 21: aform_dab("fadd"); break; |
| 743 |
case 22: aform_db("fsqrt"); break; |
| 744 |
case 23: aform_dacb("fsel"); break; |
| 745 |
case 25: aform_dac("fmul"); break; |
| 746 |
case 26: aform_db("frsqrte"); break; |
| 747 |
case 28: aform_dacb("fmsub"); break; |
| 748 |
case 29: aform_dacb("fmadd"); break; |
| 749 |
case 30: aform_dacb("fnmsub"); break; |
| 750 |
case 31: aform_dacb("fnmadd"); break; |
| 751 |
|
| 752 |
default: |
| 753 |
fprintf(f, "?\n"); |
| 754 |
break; |
| 755 |
} |
| 756 |
else |
| 757 |
switch (exop) { |
| 758 |
case 0: xform_fcrab("fcmpu"); break; |
| 759 |
case 12: xform_fdb("frsp"); break; |
| 760 |
case 14: xform_fdb("fctiw"); break; |
| 761 |
case 15: xform_fdb("fctiwz"); break; |
| 762 |
case 32: xform_fcrab("fcmpo"); break; |
| 763 |
case 38: xform_crb("mtfsb1"); break; |
| 764 |
case 40: xform_fdb("fneg"); break; |
| 765 |
case 64: xform_crcr("mcrfs"); break; |
| 766 |
case 70: xform_crb("mtfsb0"); break; |
| 767 |
case 72: xform_fdb("fmr"); break; |
| 768 |
case 134: xform_cri("mtfsfi"); break; |
| 769 |
case 136: xform_fdb("fnabs"); break; |
| 770 |
case 264: xform_fdb("fabs"); break; |
| 771 |
case 583: xform_fd("mffs"); break; |
| 772 |
case 711: xflform("mtfsf"); break; |
| 773 |
case 814: xform_fdb("fctid"); break; // 64 bit |
| 774 |
case 815: xform_fdb("fctidz"); break; // 64 bit |
| 775 |
case 846: xform_fdb("fcfid"); break; // 64 bit |
| 776 |
|
| 777 |
default: |
| 778 |
fprintf(f, "?\n"); |
| 779 |
break; |
| 780 |
} |
| 781 |
} |
| 782 |
|
| 783 |
|
| 784 |
/* |
| 785 |
* Convert mask begin/end to mask |
| 786 |
*/ |
| 787 |
|
| 788 |
static unsigned int mbme2mask(int mb, int me) |
| 789 |
{ |
| 790 |
unsigned int m = 0; |
| 791 |
int i; |
| 792 |
|
| 793 |
if (mb <= me) |
| 794 |
for (i=mb; i<=me; i++) |
| 795 |
m |= 1 << (31-i); |
| 796 |
else { |
| 797 |
for (i=0; i<=me; i++) |
| 798 |
m |= 1 << (31-i); |
| 799 |
for (i=mb; i<=31; i++) |
| 800 |
m |= 1 << (31-i); |
| 801 |
} |
| 802 |
return m; |
| 803 |
} |
| 804 |
|
| 805 |
|
| 806 |
/* |
| 807 |
* Convert SPR number to register name |
| 808 |
*/ |
| 809 |
|
| 810 |
char *get_spr(int reg) |
| 811 |
{ |
| 812 |
switch (reg) { |
| 813 |
case 1: return "xer"; |
| 814 |
case 8: return "lr"; |
| 815 |
case 9: return "ctr"; |
| 816 |
case 18: return "dsisr"; |
| 817 |
case 19: return "dar"; |
| 818 |
case 22: return "dec"; |
| 819 |
case 25: return "sdr1"; |
| 820 |
case 26: return "srr0"; |
| 821 |
case 27: return "srr1"; |
| 822 |
case 272: return "sprg0"; |
| 823 |
case 273: return "sprg1"; |
| 824 |
case 274: return "sprg2"; |
| 825 |
case 275: return "sprg3"; |
| 826 |
case 280: return "asr"; // 64 bit |
| 827 |
case 282: return "ear"; |
| 828 |
case 284: return "tbl"; |
| 829 |
case 285: return "tbu"; |
| 830 |
case 287: return "pvr"; |
| 831 |
case 528: return "ibat0u"; |
| 832 |
case 529: return "ibat0l"; |
| 833 |
case 530: return "ibat1u"; |
| 834 |
case 531: return "ibat1l"; |
| 835 |
case 532: return "ibat2u"; |
| 836 |
case 533: return "ibat2l"; |
| 837 |
case 534: return "ibat3u"; |
| 838 |
case 535: return "ibat3l"; |
| 839 |
case 536: return "dbat0u"; |
| 840 |
case 537: return "dbat0l"; |
| 841 |
case 538: return "dbat1u"; |
| 842 |
case 539: return "dbat1l"; |
| 843 |
case 540: return "dbat2u"; |
| 844 |
case 541: return "dbat2l"; |
| 845 |
case 542: return "dbat3u"; |
| 846 |
case 543: return "dbat3l"; |
| 847 |
case 1013: return "dabr"; |
| 848 |
|
| 849 |
case 0: return "mq"; // 601 |
| 850 |
case 4: return "rtcu"; // 601 |
| 851 |
case 5: return "rtcl"; // 601 |
| 852 |
case 20: return "rtcu"; // 601 |
| 853 |
case 21: return "rtcl"; // 601 |
| 854 |
case 952: return "mmcr0"; // 604 |
| 855 |
case 953: return "pmc1"; // 604 |
| 856 |
case 954: return "pmc2"; // 604 |
| 857 |
case 955: return "sia"; // 604 |
| 858 |
case 956: return "mmcr1"; // 604e |
| 859 |
case 957: return "pmc3"; // 604e |
| 860 |
case 958: return "pmc4"; // 604e |
| 861 |
case 959: return "sda"; // 604 |
| 862 |
case 976: return "dmiss"; // 603 |
| 863 |
case 977: return "dcmp"; // 603 |
| 864 |
case 978: return "hash1"; // 603 |
| 865 |
case 979: return "hash2"; // 603 |
| 866 |
case 980: return "imiss"; // 603 |
| 867 |
case 981: return "icmp"; // 603 |
| 868 |
case 982: return "rpa"; // 603 |
| 869 |
case 1008: return "hid0"; // 601/603/604 |
| 870 |
case 1009: return "hid1"; // 601/603/604e |
| 871 |
case 1010: return "iabr"; // 601/603 |
| 872 |
case 1023: return "pir"; // 601/604 |
| 873 |
|
| 874 |
case 256: return "vrsave"; // AltiVec |
| 875 |
|
| 876 |
default: return NULL; |
| 877 |
} |
| 878 |
} |
