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mc6845 - if screen is not found by tag, try again searching same tag from owner, used by graphics cards in MESS (no whatsnew)

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This commit is contained in:
Miodrag Milanovic 2011-03-05 13:22:37 +00:00
parent 6fb0957013
commit f0dfc6b28c
1 changed files with 4 additions and 0 deletions
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4
src/emu/video/mc6845.c
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@ -883,6 +883,10 @@ static void common_start(device_t *device, int device_type)
if ( mc6845->intf->screen_tag != NULL )
{
mc6845->screen = downcast<screen_device *>(device->machine->device(mc6845->intf->screen_tag));
if (mc6845->screen == NULL) {
astring tempstring;
mc6845->screen = downcast<screen_device *>(device->machine->device(device->owner()->subtag(tempstring,mc6845->intf->screen_tag)));
}
assert(mc6845->screen != NULL);
}
else