OSWORD &05

From BeebWiki

OSWORD &05 ( 5 ) - Read I/O processor memory Acorn MOS 1.20

On entry:
 XY!0=address to read from
On exit:
 XY?4=the byte read

Some systems recognise screen memory at &FFFExxxx and sideways ROMs
at &FFFr8000-&FFFrBFFF.

See Also

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

Jgharston 13:05, 26 May 2009 (UTC)