From cbbc4e2c9e3264afd878dcbac9f0dc4a98094bc1 Mon Sep 17 00:00:00 2001
From: Henrik Rydgard <hrydgard@gmail.com>
Date: Mon, 15 Apr 2013 22:23:20 +0200
Subject: [PATCH] Reset gstate_c.offsetAddr on RET. Fixes some "CALL to illegal
 address" (as seen in Flatout for example).

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

diff --git a/GPU/GPUCommon.cpp b/GPU/GPUCommon.cpp
index d13e5dea74..2bebb4876b 100644
--- a/GPU/GPUCommon.cpp
+++ b/GPU/GPUCommon.cpp
@@ -484,7 +484,6 @@ void GPUCommon::ExecuteOp(u32 op, u32 diff) {
 
 	case GE_CMD_OFFSETADDR:
 		gstate_c.offsetAddr = data << 8;
-		// ???
 		break;
 
 	case GE_CMD_ORIGIN:
@@ -533,6 +532,9 @@ void GPUCommon::ExecuteOp(u32 op, u32 diff) {
 					ERROR_LOG_REPORT(G3D, "Invalid DL PC %08x on return", currentList->pc);
 					gpuState = GPUSTATE_ERROR;
 				}
+
+				// Reset gstate_c.offsetAddr, Flatout seems to expect this.
+				gstate_c.offsetAddr = 0;
 			}
 		}
 		break;