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;
;
; Copyright (C) Microsoft Corporation, 1986
;
; This Module contains Proprietary Information of Microsoft
; Corporation and should be treated as Confidential.
;
subttl emxenix.asm - XENIX function jump tables and Initialization
page
public __eminit, __emulate, __87exception
org 10h
__eminit: ; UNDONE - not used any more
org 15h
__emulate:
jmp protemulation ; protect mode emulation
org 1Ah
__87exception:
pop eax ; eax = error code
int 0FFh
page
;------------------------------------------------------------------------------
;
; install emulator (initial all data elements
;
; This routine is executed once for the 1st emulated instruction
;
;------------------------------------------------------------------------------
pub installemulator
mov [Einstall],1 ; mark emulator as initialized
mov eax,offset BEGstk ; pointer to beginning of stack
mov [BASstk],eax ; set base of stack
mov [CURstk],eax ; set current stack element
mov eax,offset ENDstk-Reg87Len
mov [LIMstk],eax ; set end of stack
mov ax,InitControlWord
mov [UserControlWord],ax ; initialize control words
mov [ControlWord],ax
xor eax,eax
mov [UserStatusWord],ax ; initialize status words
mov [StatusWord],ax
jmp protemcont ; continue emulating 1st instruction
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