From 6d6cbe2e665b416e377390e2ab85830919b52345 Mon Sep 17 00:00:00 2001
From: Merry <git@mary.rs>
Date: Sat, 30 Jul 2022 19:12:19 +0100
Subject: [PATCH] emit_arm64_saturation: Fix UnsignedSaturation for < 0

---
 src/dynarmic/backend/arm64/emit_arm64_saturation.cpp | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/dynarmic/backend/arm64/emit_arm64_saturation.cpp b/src/dynarmic/backend/arm64/emit_arm64_saturation.cpp
index db55ce8f..95b8b51e 100644
--- a/src/dynarmic/backend/arm64/emit_arm64_saturation.cpp
+++ b/src/dynarmic/backend/arm64/emit_arm64_saturation.cpp
@@ -114,8 +114,10 @@ void EmitIR<IR::Opcode::UnsignedSaturation>(oaknut::CodeGenerator& code, EmitCon
     const u32 saturated_value = (1u << N) - 1;
 
     code.MOV(Wscratch0, saturated_value);
+    code.CMP(*Woperand, 0);
+    code.CSEL(Wresult, Woperand, WZR, GT);
     code.CMP(*Woperand, Wscratch0);
-    code.CSEL(Wresult, Woperand, Wscratch0, LS);
+    code.CSEL(Wresult, Wresult, Wscratch0, LT);
 
     if (overflow_inst) {
         auto Woverflow = ctx.reg_alloc.WriteW(overflow_inst);