| 1356 | } |
| 1357 | |
| 1358 | virtual bool InvertBranch(uint8_t* data, uint64_t addr, size_t len) override |
| 1359 | { |
| 1360 | (void)addr; |
| 1361 | (void)len; |
| 1362 | uint32_t *value = (uint32_t*)data; |
| 1363 | |
| 1364 | uint32_t instValue = *value; |
| 1365 | if (GetEndianness() == LittleEndian) |
| 1366 | instValue = bswap32(instValue); |
| 1367 | |
| 1368 | uint32_t op = instValue >> 26; |
| 1369 | switch (op) |
| 1370 | { |
| 1371 | case 1: //REGIMM |
| 1372 | op = (instValue >> 16) & 0xf; |
| 1373 | switch (op) |
| 1374 | { |
| 1375 | case 0: //BLTZ |
| 1376 | case 1: //BGEZ |
| 1377 | case 2: //BLTZL |
| 1378 | case 3: //BGEZL |
| 1379 | case 0x10: //BLTZAL |
| 1380 | case 0x11: //BGEZAL |
| 1381 | case 0x12: //BLTZALL |
| 1382 | case 0x13: //BGEZALL |
| 1383 | //Invert the bit |
| 1384 | instValue ^= 0x00000100; |
| 1385 | break; |
| 1386 | default: |
| 1387 | return false; |
| 1388 | } |
| 1389 | break; |
| 1390 | case 4: //BEQ |
| 1391 | case 5: //BNE |
| 1392 | case 6: //BLEZ |
| 1393 | case 7: //BGTZ |
| 1394 | case 0x14: //BEQL |
| 1395 | case 0x15: //BNEL |
| 1396 | case 0x16: //BLEZL |
| 1397 | case 0x17: //BGTZL |
| 1398 | //Invert the bit |
| 1399 | instValue ^= 0x00000004; |
| 1400 | break; |
| 1401 | default: |
| 1402 | return false; |
| 1403 | } |
| 1404 | if (GetEndianness() == LittleEndian) |
| 1405 | instValue = bswap32(instValue); |
| 1406 | |
| 1407 | *value = instValue; |
| 1408 | return true; |
| 1409 | } |
| 1410 | /* |
| 1411 | virtual bool SkipAndReturnValue(uint8_t* data, uint64_t addr, size_t len, uint64_t value) override |
| 1412 | { |