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changeset 2327:9dd27530c570

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Fix Z80 access to VDP debug register
author Michael Pavone <pavone@retrodev.com>
date Sun, 06 Aug 2023 20:00:33 -0700
parents e734bfae80c7
children 7f8d0fdc5bca
files genesis.c
diffstat 1 files changed, 1 insertions(+), 1 deletions(-) [+]
line wrap: on
line diff
--- 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;
 }