From 2e7fb92ca0c517d6e0e96f6a0ca79372a0025548 Mon Sep 17 00:00:00 2001
From: dinkc64 <12570148+dinkc64@users.noreply.github.com>
Date: Tue, 6 Jan 2015 08:27:43 +0000
Subject: [PATCH] terra cresta fix: insert coin -> coin counter not insert coin
 -> flip screen

---
 src/burn/drv/pre90s/d_terracre.cpp | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/burn/drv/pre90s/d_terracre.cpp b/src/burn/drv/pre90s/d_terracre.cpp
index 0c295ea38..e6dd15479 100644
--- a/src/burn/drv/pre90s/d_terracre.cpp
+++ b/src/burn/drv/pre90s/d_terracre.cpp
@@ -757,7 +757,7 @@ void __fastcall Terracre68KWriteWord(UINT32 a, UINT16 d)
 {
 	switch (a) {
 		case 0x026000: {
-			DrvFlipScreen = d;
+			DrvFlipScreen = d & 0x04;
 			return;
 		}
 		
@@ -878,7 +878,7 @@ void __fastcall Amazon68KWriteWord(UINT32 a, UINT16 d)
 {
 	switch (a) {
 		case 0x046000: {
-			DrvFlipScreen = d;
+			DrvFlipScreen = d & 0x04;
 			return;
 		}