Xycom XVME-678 Manual page 115

XVME-6781688 Manual
July 1994
5.3.2 Set Real Mode Window Configuration
This routine is used to configure which 64 Kbyte segment the Real Mode Window
point~
to. The previous
configuration is returned upon completion.
lnt I5h
Function AFH
Call With:
Returns:
Sub function 11
AH
=
AFH
AL
=
IIH
BX
=
Desired RMW address space
0- ROM
I - VMEbus short
2 - VMEbus standard
3 - VMEbus lACK
CX
=
Desired 64 Kbyte portion of VMEbus Standard Address Space mapped to
RMW (if used)
If error: Carry Flag Set
If successful:
AH
=
Error Code
DI
=
"XY"
Carry Flag Clear
AH
=
0
DI
=
"XY"
BX
=
Previous RMW address space
0- ROM
I - VMEbus short
2 - VMEbus standard
3 - VMEbus lACK
CX
=
Previous 64 Kbyte portion of VMEbus Standard Address Space mapped to
RMW (if used)
5-11