OSWORD &6F

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OSWORD &6F (111) - Write byte to shadow RAM board Watford 32K

On entry:
 XY+0..1=address within RAM board
 XY?2   =bank flag, as for OSWORD &6E
 XY?3   =byte to be written
On exit:
 XY?3=former contents of memory location.

See Also

Jgharston 13:14, 26 May 2009 (UTC)