From a9293c8923905e8b9f15edca05cb228fe3afca2b Mon Sep 17 00:00:00 2001
From: "Unknown W. Brackets" <checkins@unknownbrackets.org>
Date: Fri, 18 Jan 2013 10:19:43 -0800
Subject: [PATCH] Add breakpoints to x86 jit for easier debugging.

They should be really fast so leaving them on in release.
---
 Core/MIPS/x86/Jit.cpp | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)

diff --git a/Core/MIPS/x86/Jit.cpp b/Core/MIPS/x86/Jit.cpp
index f5149f1264..9e9963bef1 100644
--- a/Core/MIPS/x86/Jit.cpp
+++ b/Core/MIPS/x86/Jit.cpp
@@ -25,9 +25,21 @@
 #include "RegCache.h"
 #include "Jit.h"
 
+#include "../../Host.h"
+#include "../../Debugger/Breakpoints.h"
+
 namespace MIPSComp
 {
 
+static void JitBreakpoint()
+{
+	Core_EnableStepping(true);
+	host->SetDebugMode(true);
+
+	if (CBreakPoints::IsTempBreakPoint(currentMIPS->pc))
+		CBreakPoints::RemoveBreakPoint(currentMIPS->pc);
+}
+
 Jit::Jit(MIPSState *mips) : blocks(mips), mips_(mips)
 {
 	blocks.Init();
@@ -107,6 +119,15 @@ const u8 *Jit::DoJit(u32 em_address, JitBlock *b)
 
 		MIPSCompileOp(inst);
 
+		// Jit breakpoints are quite fast, so let's do them in release too.
+		if (CBreakPoints::IsAddressBreakPoint(js.compilerPC))
+		{
+			FlushAll();
+			MOV(32, M(&mips_->pc), Imm32(js.compilerPC));
+			CALL(&JitBreakpoint);
+			WriteSyscallExit();
+		}
+
 		js.compilerPC += 4;
 		numInstructions++;
 	}