OSBYTE &01

OSBYTE &01 (1) - Write and Read User Flag/Exit status (exits with X=old value)

   On entry X=value to write
   On exit X=old value
   This flag is unused by the OS, and is simply there to provide an
   OSByte location without the user needing to write OSByte
   decoding code

See Also

• Returning exit code
• http://mdfs.net/Docs/Comp/BBC/Osbyte00

Jgharston 21:05, 26 May 2009 (UTC)