Difference between revisions of "OSBYTE &6B"
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Latest revision as of 19:12, 8 March 2015
OSBYTE &6B (107) - External/Internal 1MHz Bus (on exit X is preserved)
Y=0 X=0 select external bus running at 2MHz
X=1 select internal bus running at 1MHz
This call allows the selection of either the external cartridge slot style
of '1MHz' bus, or the internal 1MHz bus under the keyboard. In the case of
the Master Compact X=1 has no effect as it has no connectors under the
keyboard.
See Also
Jgharston 21:14, 26 May 2009 (UTC)
