Difference between revisions of "OSBYTE &73"
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Revision as of 02:13, 8 March 2015
OSBYTE &73 (115) - Select shadow RAM bank used
X=0 Shadow bank 8
X=1 Shadow bank 9
(Electron OS only)
Blank/restore palette
X=0 restores the palette
X<>0 sets the whole palette to black if is high resolution mode
Software using NMIs in high res modes can prevent snow appearing on the
screen during NMIs (due to ULA reuse) by blanking the palette
See Also
Jgharston 21:52, 26 May 2009 (UTC)
