OSWORD &81

OSWORD &81 (129) - Merlin M2100 Terminal

 On entry:                               On exit
   XY?0     =send block length             XY?0     =preserved
   XY?1     =receive block length          XY?1     =preserved
   XY?2     =call subnumber                XY?2     =preserved
   XY?3     =reserved for result           XY?3     =result byte 1
   XY?4     =reserved for result           XY?4     =result byte 2
   XY+5...  parameters

Functions

&00 Enable serial transmitter &01 Disable serial transmitter &02 Enable serial receiver &03 Disable serial receiver &04 Reset serial transmitter &05 Reset serial receiver &06 Reset serial error status &07 Read serial handshake &08 Write serial handshake &09 Read byte from serial receive register &0A Read serial status &0B Write byte to serial transmit register &0C Enable serial interrupts &0D Disable serial interrupts &0E Set serial data word &0F Set serial handshake &10 Enable modem transmitter &11 Disable modem transmitter &12 Enable modem receiver &13 Disable modem receiver &14 Reset modem transmitter &15 Reset modem receiver &16 Reset modem error status &17 Write modem handshake &18 Read byte from modem receive register &19 Read modem status &1A Write byte to modem transmit register &1B Enable modem interrupts &1C Disable modem interrupts &1D Start ring counter &1E Read ring counter

more

To be added.

Springboard

The Advanced Reference Manual for the BBC Master (Watford Electronics) lists:

• OSWORD &81 (129) - Springboard

See Also

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

References

• M2105 Product Specification, Acorn, 18/Apr/1985

Merlin M2100 calls
OSBYTE &40 : Read modem handshake OSBYTE &41 : Select Merlin RAM page OSBYTE &42 : Enable/disable paged RAM	OSWORD &81 : Merlin terminal calls

Jgharston 14:09, 26 May 2009 (UTC)