OSBYTE &F3

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OSBYTE &F3 (243) - Read/Write offset to current TIME value

   A value of X=5 means that TIME copy 1 is being updated
   A value of X=10 means that TIME copy 2 is being updated
   Two copies of TIME are required in case the TIME update interrupt occurs
   part way through a read of TIME - leading to inconsistant values.

See Also

http://mdfs.net/Docs/Comp/BBC/OsbyteA6

Jgharston 23:14, 26 May 2009 (UTC)

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OSBYTE