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Add support for the APSR.Q flag

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This commit is contained in:
Tillmann Karras
2016-08-06 22:04:52 +01:00
committed by MerryMage
parent 11e0688e5f
commit ccb2aa96a5
4 changed files with 21 additions and 0 deletions
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15
src/backend_x64/emit_x64.cpp
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@@ -260,6 +260,21 @@ void EmitX64::EmitSetVFlag(IR::Block&, IR::Inst* inst) {
}
}
void EmitX64::EmitOrQFlag(IR::Block&, IR::Inst* inst) {
constexpr size_t flag_bit = 27;
constexpr u32 flag_mask = 1u << flag_bit;
IR::Value arg = inst->GetArg(0);
if (arg.IsImmediate()) {
if (arg.GetU1())
code->OR(32, MJitStateCpsr(), Imm32(flag_mask));
} else {
X64Reg to_store = reg_alloc.UseScratchRegister(arg.GetInst(), any_gpr);
code->SHL(32, R(to_store), Imm8(flag_bit));
code->OR(32, MJitStateCpsr(), R(to_store));
}
}
void EmitX64::EmitBXWritePC(IR::Block&, IR::Inst* inst) {
const u32 T_bit = 1 << 5;
auto arg = inst->GetArg(0);