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[dynarmic] Define LSW on the same argument/use scratch gpr (#3520) 

Signed-off-by: lizzie <lizzie@eden-emu.dev>
Reviewed-on: https://git.eden-emu.dev/eden-emu/eden/pulls/3520
Reviewed-by: DraVee <dravee@eden-emu.dev>
Reviewed-by: CamilleLaVey <camillelavey99@gmail.com>
Co-authored-by: lizzie <lizzie@eden-emu.dev>
Co-committed-by: lizzie <lizzie@eden-emu.dev>
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lizzie 2026-02-11 23:13:40 +01:00 committed by crueter
parent 9c685c1449
commit f6547fac8c
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1 changed files with 4 additions and 5 deletions
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9
src/dynarmic/src/dynarmic/backend/x64/emit_x64_data_processing.cpp
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@ -1,4 +1,4 @@
// SPDX-FileCopyrightText: Copyright 2025 Eden Emulator Project // SPDX-FileCopyrightText: Copyright 2026 Eden Emulator Project
// SPDX-License-Identifier: GPL-3.0-or-later // SPDX-License-Identifier: GPL-3.0-or-later
/* This file is part of the dynarmic project. /* This file is part of the dynarmic project.
@ -57,10 +57,9 @@ void EmitX64::EmitLeastSignificantWord(EmitContext& ctx, IR::Inst* inst) {
auto args = ctx.reg_alloc.GetArgumentInfo(inst); auto args = ctx.reg_alloc.GetArgumentInfo(inst);
// TODO: DefineValue directly on Argument // TODO: DefineValue directly on Argument
const Xbyak::Reg64 result = ctx.reg_alloc.ScratchGpr(code); const Xbyak::Reg64 res = ctx.reg_alloc.UseScratchGpr(code, args[0]);
const Xbyak::Reg64 source = ctx.reg_alloc.UseGpr(code, args[0]); code.mov(res.cvt32(), res.cvt32());
code.mov(result.cvt32(), source.cvt32()); ctx.reg_alloc.DefineValue(code, inst, res);
ctx.reg_alloc.DefineValue(code, inst, result);
} }
void EmitX64::EmitMostSignificantWord(EmitContext& ctx, IR::Inst* inst) { void EmitX64::EmitMostSignificantWord(EmitContext& ctx, IR::Inst* inst) {