diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/dynarec/arm64/dynarec_arm64_00.c | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/src/dynarec/arm64/dynarec_arm64_00.c b/src/dynarec/arm64/dynarec_arm64_00.c index f960dc83..302a70c9 100644 --- a/src/dynarec/arm64/dynarec_arm64_00.c +++ b/src/dynarec/arm64/dynarec_arm64_00.c @@ -1619,6 +1619,42 @@ uintptr_t dynarec64_00(dynarec_arm_t* dyn, uintptr_t addr, uintptr_t ip, int nin break; } break; + case 0xAF: + switch(rep) { + case 1: + case 2: + if(rep==1) {INST_NAME("REPNZ SCASD");} else {INST_NAME("REPZ SCASD");} + MAYSETFLAGS(); + SETFLAGS(X_ALL, SF_SET_PENDING); + CBZx_NEXT(xRCX); + TBNZ_MARK2(xFlags, F_DF); + MARK; // Part with DF==0 + LDRxw_S9_postindex(x2, xRDI, rex.w?8:4); + SUBx_U12(xRCX, xRCX, 1); + CMPSxw_REG(xRAX, x2); + B_MARK3((rep==1)?cEQ:cNE); + CBNZx_MARK(xRCX); + B_MARK3_nocond; + MARK2; // Part with DF==1 + LDRxw_S9_postindex(x2, xRDI, rex.w?-8:-4); + SUBx_U12(xRCX, xRCX, 1); + CMPSxw_REG(xRAX, x2); + B_MARK3((rep==1)?cEQ:cNE); + CBNZx_MARK2(xRCX); + MARK3; // end + emit_cmp32(dyn, ninst, rex, xRAX, x2, x3, x4, x5); + break; + default: + INST_NAME("SCASD"); + SETFLAGS(X_ALL, SF_SET_PENDING); + GETDIR(x3, 1); + UBFXw(x1, xRAX, 0, 8); + LDRB_U12(x2, xRDI, 0); + ADDx_REG(xRDI, xRDI, x3); + emit_cmp8(dyn, ninst, x1, x2, x3, x4, x5); + break; + } + break; case 0xB0: |