OSBYTE &99

OSBYTE &99 (153) - Write character into input buffer checking for ESCAPE

   X=buffer number
   Y=byte to insert
   On exit C=1=buffer was full
   If Y is the ESCAPE character, then no keyboard event will happen as an
   ESCAPE condition (hence ESCAPE event) are in progress.

See Also

• http://mdfs.net/Docs/Comp/BBC/Osbyte80

Jgharston 22:09, 26 May 2009 (UTC)