From 4722a69fd04e3c3ae6ee43e2c9c32473863735f3 Mon Sep 17 00:00:00 2001
From: degasus <wickmarkus@web.de>
Date: Sun, 23 Aug 2015 12:11:21 +0200
Subject: [PATCH] JitArm64: Implement divwux

---
 Source/Core/Core/PowerPC/JitArm64/Jit.h       |  1 +
 .../PowerPC/JitArm64/JitArm64_Integer.cpp     | 28 +++++++++++++++++++
 .../Core/PowerPC/JitArm64/JitArm64_Tables.cpp |  4 +--
 3 files changed, 31 insertions(+), 2 deletions(-)

diff --git a/Source/Core/Core/PowerPC/JitArm64/Jit.h b/Source/Core/Core/PowerPC/JitArm64/Jit.h
index a7c75b24e5..22d515e32b 100644
--- a/Source/Core/Core/PowerPC/JitArm64/Jit.h
+++ b/Source/Core/Core/PowerPC/JitArm64/Jit.h
@@ -103,6 +103,7 @@ public:
 	void subfcx(UGeckoInstruction inst);
 	void subfic(UGeckoInstruction inst);
 	void addex(UGeckoInstruction inst);
+	void divwux(UGeckoInstruction inst);
 
 	// System Registers
 	void mtmsr(UGeckoInstruction inst);
diff --git a/Source/Core/Core/PowerPC/JitArm64/JitArm64_Integer.cpp b/Source/Core/Core/PowerPC/JitArm64/JitArm64_Integer.cpp
index fb3f1ec407..70bed8e6c3 100644
--- a/Source/Core/Core/PowerPC/JitArm64/JitArm64_Integer.cpp
+++ b/Source/Core/Core/PowerPC/JitArm64/JitArm64_Integer.cpp
@@ -935,6 +935,34 @@ void JitArm64::addcx(UGeckoInstruction inst)
 	}
 }
 
+void JitArm64::divwux(UGeckoInstruction inst)
+{
+	INSTRUCTION_START
+	JITDISABLE(bJITIntegerOff);
+	FALLBACK_IF(inst.OE);
+
+	int a = inst.RA, b = inst.RB, d = inst.RD;
+
+	if (gpr.IsImm(a) && gpr.IsImm(b))
+	{
+		u32 i = gpr.GetImm(a), j = gpr.GetImm(b);
+		gpr.SetImmediate(d, j == 0 ? 0 : i / j);
+
+		if (inst.Rc)
+			ComputeRC(gpr.GetImm(d), 0);
+	}
+	else
+	{
+		gpr.BindToRegister(d, d == a || d == b);
+
+		// d = a / b
+		UDIV(gpr.R(d), gpr.R(a), gpr.R(b));
+
+		if (inst.Rc)
+			ComputeRC(gpr.R(d), 0);
+	}
+}
+
 void JitArm64::slwx(UGeckoInstruction inst)
 {
 	INSTRUCTION_START
diff --git a/Source/Core/Core/PowerPC/JitArm64/JitArm64_Tables.cpp b/Source/Core/Core/PowerPC/JitArm64/JitArm64_Tables.cpp
index a33cb9909c..80a8e9c22a 100644
--- a/Source/Core/Core/PowerPC/JitArm64/JitArm64_Tables.cpp
+++ b/Source/Core/Core/PowerPC/JitArm64/JitArm64_Tables.cpp
@@ -182,8 +182,8 @@ static GekkoOPTemplate table31[] =
 	{714,  &JitArm64::addzex},                  // addzeox
 	{491,  &JitArm64::FallBackToInterpreter},   // divwx
 	{1003, &JitArm64::FallBackToInterpreter},   // divwox
-	{459,  &JitArm64::FallBackToInterpreter},   // divwux
-	{971,  &JitArm64::FallBackToInterpreter},   // divwuox
+	{459,  &JitArm64::divwux},                  // divwux
+	{971,  &JitArm64::divwux},                  // divwuox
 	{75,   &JitArm64::FallBackToInterpreter},   // mulhwx
 	{11,   &JitArm64::FallBackToInterpreter},   // mulhwux
 	{235,  &JitArm64::mullwx},                  // mullwx