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video disable

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This commit is contained in:
davidhay 2008-10-11 12:18:25 +00:00
parent d8a6433cc5
commit 6c9daddd3c
1 changed files with 8 additions and 0 deletions
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8
src/mame/drivers/segac2.c
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@ -85,6 +85,7 @@
static void recompute_palette_tables(void);
static int segac2_enable_display;
/******************************************************************************
Global variables
@ -514,6 +515,7 @@ static WRITE16_HANDLER( control_w )
/* bit 0 controls display enable */
//segac2_enable_display(machine, ~data & 1);
segac2_enable_display = ~data & 1;
/* bit 1 resets the protection */
if (!(data & 2))
@ -1397,6 +1399,12 @@ VIDEO_START(segac2_new)
VIDEO_UPDATE(segac2_new)
{
if (!segac2_enable_display)
{
fillbitmap(bitmap, get_black_pen(screen->machine), NULL);
return 0;
}
VIDEO_UPDATE_CALL(megadriv);
return 0;
}