From fb1524b244c1f55abbb6a0a92cbcf9b211527d4c Mon Sep 17 00:00:00 2001
From: Peter Ferrie <peter.ferrie@gmail.com>
Date: Wed, 7 Feb 2018 14:05:47 -0800
Subject: [PATCH] fix GS detection

---
 src/pitchdark.a | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/pitchdark.a b/src/pitchdark.a
index 22d0f90..357ef3a 100644
--- a/src/pitchdark.a
+++ b/src/pitchdark.a
@@ -17,9 +17,9 @@
          dex
          bne   .copya
 !cpu 65816
-         sep   #2                    ; set Z flag on 65816 only
+         rep   #2                    ; clear Z flag on 65816 only
 !cpu 65c02
-         bne   +                     ; skip GS-specific code on non-GS machines (required, will crash on //c, grr)
+         beq   +                     ; skip GS-specific code on non-GS machines (required, will crash on //c, grr)
          lda   $C029
          and   #$1F
          sta   $C029                 ; set GS NEWVIDEO mode to turn off linearize