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OSWORD &FE (254) - Z80 MFM disk access (Z80 Tube OS)

 On entry:
   XY?0     =(send block length)
   XY?1     =(receive block length)
   XY!2     =

This is loaded by the Z80 Tube v2 client code from $.CPM.X or $.CPM.Y on the host filing system. The code is currently being disassembled.

OSWORD &FE (254) - DOS Text output (80x86 DOS, unimplemented)

The 6502 host support code in 6502.SYS installed by the 80x86 DOS just returns from OSWORD &FE.

See Also

Jgharston 14:29, 26 May 2009 (UTC) Jgharston (talk) 03:29, 20 July 2020 (CEST)