# HG changeset patch
# User Michael Pavone <pavone@retrodev.com>
# Date 1691377233 25200
# Node ID 9dd27530c5704ecd0f8a0831b0b6f49eaa600e9e
# Parent  e734bfae80c79980b0faf67dfacac090f0653431
Fix Z80 access to VDP debug register

diff -r e734bfae80c7 -r 9dd27530c570 genesis.c
--- a/genesis.c	Tue Jul 18 22:57:57 2023 -0700
+++ b/genesis.c	Sun Aug 06 20:00:33 2023 -0700
@@ -751,7 +751,7 @@
 		sync_sound(gen, context->Z80_CYCLE);
 		psg_write(gen->psg, value);
 	} else {
-		vdp_test_port_write(gen->vdp, value);
+		vdp_test_port_write(gen->vdp, value << 8 | value);
 	}
 	return context;
 }