diff options
| author | RSDuck <rsduck@users.noreply.github.com> | 2019-08-25 13:06:27 +0200 |
|---|---|---|
| committer | RSDuck <rsduck@users.noreply.github.com> | 2020-06-16 11:55:53 +0200 |
| commit | d208f5909c97c3caeaa4c1c95a37e618824ec199 (patch) | |
| tree | 3d4b305d056315f32090611075fc62f5da11dc1a /src | |
| parent | f378458c104f1879f30610dfe4010e4772218787 (diff) | |
fixes for flag optimisation
Diffstat (limited to 'src')
| -rw-r--r-- | src/ARMJIT.cpp | 1 | ||||
| -rw-r--r-- | src/ARMJIT_x64/ARMJIT_ALU.cpp | 2 | ||||
| -rw-r--r-- | src/ARM_InstrInfo.cpp | 2 |
3 files changed, 3 insertions, 2 deletions
diff --git a/src/ARMJIT.cpp b/src/ARMJIT.cpp index 3b6bc2e..5d92e47 100644 --- a/src/ARMJIT.cpp +++ b/src/ARMJIT.cpp @@ -163,6 +163,7 @@ CompiledBlock CompileBlock(ARM* cpu) { r15 += thumb ? 2 : 4; + instrs[i].SetFlags = 0; instrs[i].Instr = nextInstr[0]; instrs[i].NextInstr[0] = nextInstr[0] = nextInstr[1]; diff --git a/src/ARMJIT_x64/ARMJIT_ALU.cpp b/src/ARMJIT_x64/ARMJIT_ALU.cpp index 6a7d711..f868ddf 100644 --- a/src/ARMJIT_x64/ARMJIT_ALU.cpp +++ b/src/ARMJIT_x64/ARMJIT_ALU.cpp @@ -387,7 +387,7 @@ void Compiler::Comp_RetriveFlags(bool sign, bool retriveCV, bool carryUsed) AND(32, R(RCPSR), Imm32(0x3FFFFFFF & ~(carryUsed << 29) & ~((retriveCV ? 3 : 0) << 28))); OR(32, R(RCPSR), R(RSCRATCH)); } - else + else if (carryUsed || retriveCV) { SHL(32, R(RSCRATCH2), Imm8(carryOnly ? 29 : 28)); AND(32, R(RCPSR), Imm32(0xFFFFFFFF & ~(carryUsed << 29) & ~((retriveCV ? 3 : 0) << 28))); diff --git a/src/ARM_InstrInfo.cpp b/src/ARM_InstrInfo.cpp index ea6d827..3634c35 100644 --- a/src/ARM_InstrInfo.cpp +++ b/src/ARM_InstrInfo.cpp @@ -436,7 +436,7 @@ Info Decode(bool thumb, u32 num, u32 instr) if ((instr >> 28) < 0xE) { // make non conditional flag sets conditional - res.WriteFlags = res.WriteFlags | (res.WriteFlags << 4); + res.WriteFlags = (res.WriteFlags | (res.WriteFlags << 4)) & 0xF0; res.ReadFlags |= FlagsReadPerCond[instr >> 29]; } |