fixup better handlinmg for >0xff

2 days ago · 69b87a5f35
1 changed files with 2 additions and 1 deletions
--- a/src/dynarmic/src/dynarmic/backend/x64/emit_x64_sm4.cpp
+++ b/src/dynarmic/src/dynarmic/backend/x64/emit_x64_sm4.cpp
@ -52,7 +52,8 @@ void EmitX64::EmitSM4AccessSubstitutionBox(EmitContext& ctx, IR::Inst* inst) {
    const Xbyak::Reg64 tmp0 = ctx.reg_alloc.UseScratchGpr(code, args[0]);
    const Xbyak::Reg tmp1 = ctx.reg_alloc.ScratchGpr(code);
    // return subtitution_box[index * 1];
-    code.mov(tmp1, u64(std::addressof(substitution_box)));
+    code.movzx(tmp0.cvt32(), tmp0.cvt8());
+    code.lea(tmp1, code.ptr[std::addressof(substitution_box)]);
    code.movzx(tmp1, code.byte[tmp1 + tmp0 * 1]);
    ctx.reg_alloc.DefineValue(code, inst, tmp1);
 }