From 603272869992fe73cdcc0970b82de2306ff54fd3 Mon Sep 17 00:00:00 2001
From: Sour <mesenemu@gmail.com>
Date: Sat, 6 Jul 2019 09:16:19 -0400
Subject: [PATCH] CPU: Reads should happen slightly earlier within a CPU cycle
 compared to writes Fixes Rendering Ranger R2 freeze on stage start

---
 Core/MemoryManager.cpp | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/Core/MemoryManager.cpp b/Core/MemoryManager.cpp
index 2ce128c..03b06cb 100644
--- a/Core/MemoryManager.cpp
+++ b/Core/MemoryManager.cpp
@@ -216,7 +216,7 @@ void MemoryManager::Exec()
 
 uint8_t MemoryManager::Read(uint32_t addr, MemoryOperationType type)
 {
-	IncrementMasterClock();
+	IncrementMasterClockValue(_cpuSpeed - 4);
 
 	uint8_t value;
 	if(_handlers[addr >> 12]) {
@@ -228,6 +228,8 @@ uint8_t MemoryManager::Read(uint32_t addr, MemoryOperationType type)
 		MessageManager::Log("[Debug] Read - missing handler: $" + HexUtilities::ToHex(addr));
 	}
 	_console->ProcessCpuRead(addr, value, type);
+
+	IncrementMasterClockValue<4>();
 	return value;
 }