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emit_arm64_a32: A32SetCpsrNZC: Handle immediate

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Merry 2022-07-31 08:49:02 +01:00 committed by merry
parent 65a7d9be8d
commit db5db43fd4
1 changed files with 39 additions and 18 deletions
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57
src/dynarmic/backend/arm64/emit_arm64_a32.cpp
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@ -323,28 +323,49 @@ void EmitIR<IR::Opcode::A32SetCpsrNZC>(oaknut::CodeGenerator& code, EmitContext&
// TODO: Track latent value // TODO: Track latent value
if (args[1].IsImmediate()) { if (args[0].IsImmediate()) {
const u32 carry = args[1].GetImmediateU1() ? 0x2000'0000 : 0; if (args[1].IsImmediate()) {
auto Wnz = ctx.reg_alloc.ReadW(args[0]); const u32 carry = args[1].GetImmediateU1() ? 0x2000'0000 : 0;
RegAlloc::Realize(Wnz);
code.LDR(Wscratch0, Xstate, offsetof(A32JitState, cpsr_nzcv)); code.LDR(Wscratch0, Xstate, offsetof(A32JitState, cpsr_nzcv));
code.AND(Wscratch0, Wscratch0, 0x10000000); code.AND(Wscratch0, Wscratch0, 0x10000000);
code.ORR(Wscratch0, Wscratch0, Wnz); if (carry) {
if (carry) { code.ORR(Wscratch0, Wscratch0, carry);
code.ORR(Wscratch0, Wscratch0, carry); }
code.STR(Wscratch0, Xstate, offsetof(A32JitState, cpsr_nzcv));
} else {
auto Wc = ctx.reg_alloc.ReadW(args[1]);
RegAlloc::Realize(Wc);
code.LDR(Wscratch0, Xstate, offsetof(A32JitState, cpsr_nzcv));
code.AND(Wscratch0, Wscratch0, 0x10000000);
code.ORR(Wscratch0, Wscratch0, Wc);
code.STR(Wscratch0, Xstate, offsetof(A32JitState, cpsr_nzcv));
} }
code.STR(Wscratch0, Xstate, offsetof(A32JitState, cpsr_nzcv));
} else { } else {
auto Wnz = ctx.reg_alloc.ReadW(args[0]); if (args[1].IsImmediate()) {
auto Wc = ctx.reg_alloc.ReadW(args[1]); const u32 carry = args[1].GetImmediateU1() ? 0x2000'0000 : 0;
RegAlloc::Realize(Wnz, Wc); auto Wnz = ctx.reg_alloc.ReadW(args[0]);
RegAlloc::Realize(Wnz);
code.LDR(Wscratch0, Xstate, offsetof(A32JitState, cpsr_nzcv)); code.LDR(Wscratch0, Xstate, offsetof(A32JitState, cpsr_nzcv));
code.AND(Wscratch0, Wscratch0, 0x10000000); code.AND(Wscratch0, Wscratch0, 0x10000000);
code.ORR(Wscratch0, Wscratch0, Wnz); code.ORR(Wscratch0, Wscratch0, Wnz);
code.ORR(Wscratch0, Wscratch0, Wc); if (carry) {
code.STR(Wscratch0, Xstate, offsetof(A32JitState, cpsr_nzcv)); code.ORR(Wscratch0, Wscratch0, carry);
}
code.STR(Wscratch0, Xstate, offsetof(A32JitState, cpsr_nzcv));
} else {
auto Wnz = ctx.reg_alloc.ReadW(args[0]);
auto Wc = ctx.reg_alloc.ReadW(args[1]);
RegAlloc::Realize(Wnz, Wc);
code.LDR(Wscratch0, Xstate, offsetof(A32JitState, cpsr_nzcv));
code.AND(Wscratch0, Wscratch0, 0x10000000);
code.ORR(Wscratch0, Wscratch0, Wnz);
code.ORR(Wscratch0, Wscratch0, Wc);
code.STR(Wscratch0, Xstate, offsetof(A32JitState, cpsr_nzcv));
}
} }
} }