OSBYTE &7E
From BeebWiki
OSBYTE &7E (126) - Acknowledge ESCAPE Condition
This call tries to clear any ESCAPE condition, and (if enabled with
OSByte 230) appropriate side effects.
On exit X=255 successfully cleared condition
X=0 the ESCAPE condition was not cleared (or no ESCAPE condition)
See Also
Jgharston 21:21, 26 May 2009 (UTC)

