From 2f405cd01e6171f8d2e8c8cfd5863c3c5650d397 Mon Sep 17 00:00:00 2001
From: zeromus <zeromus@users.noreply.github.com>
Date: Fri, 15 Apr 2016 00:09:40 +0100
Subject: [PATCH] fix gpgx CDL z80 -> MD cart

---
 waterbox/gpgx/core/z80/z80.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/waterbox/gpgx/core/z80/z80.c b/waterbox/gpgx/core/z80/z80.c
index 12de4cc5c0..0bd0f494c0 100644
--- a/waterbox/gpgx/core/z80/z80.c
+++ b/waterbox/gpgx/core/z80/z80.c
@@ -594,9 +594,10 @@ void CDLogZ80(uint addr, uint flags)
 	if(addr >= 0x8000)
 	{
     addr = zbank | (addr & 0x7FFF);
-    if (zbank_memory_map[addr >> 16].write)
+    if (zbank_memory_map[addr >> 16].read)
     {
 			//special memory maps are hard to support here.
+			//hopefully, most carts aren't setting this CB for simple accesses to ROMs 
       return;
     }