Xycom XVME-678 Manual page 106

Chapter 5 - XVME BIOS Functions
The following code fragment (in assembly) shows how to use the information returned by subfunction OOH
(Identify XVME Model) to access the call entry for subfunction 01H (Get Real Mode Window Physical
Segment). Using the call entry is faster than using Interrupt 15H but, again, may not work when running
in protected mode.
Failed:
5-2
; The following three entries must remain in the same contiguous order
; and reside in the data segment.
Call_Entry LABEL DWORD
Call Offset DW?
Call_Segment DW OFOOOH
; This code assumes that DS has been loaded properly and
; that static entries in the data segment have been set up properly.
MOV AX,OAFOOH
INT 15H
JC Failed
MOV Call_ Offset,CX
MOV AL,01H
CALL Call_Entry
JC Failed