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;	[]===========================================================[] 
; 
;	NOTICE: THIS PROGRAM BELONGS TO AWARD SOFTWARE INTERNATIONAL(R) 
;	        INC. IT IS CONSIDERED A TRADE SECRET AND IS NOT TO BE 	 
;	        DIVULGED OR USED BY PARTIES WHO HAVE NOT RECEIVED	 
;	        WRITTEN AUTHORIZATION FROM THE OWNER. 
; 
; 	[]===========================================================[] 
; 
 
;---------------------------------------------------------------------------- 
;Rev	Date	 Name	Description 
;---------------------------------------------------------------------------- 
;R00	04/28/97 RCH	Initial revision for GX86/VSA support. 
;			Note : Both APM/APM32 services are in VSA code 
 
.386p 
		PAGE	60,132 
		TITLE	APM_32.ASM   --   APM 32 Bit Interface 
.XLIST 
		INCLUDE	BIOS.CFG 
		INCLUDE	COMMON.EQU 
		INCLUDE	COMMON.MAC 
		INCLUDE	POST.MAC 
		INCLUDE	BSETUP.INC 
		include	CMOS.EQU 
 
;===================================================== 
CALL32	MACRO	ADDRESS 
		X	=	$ 
		CALL	ADDRESS 
		IF2 
		Y	=	ADDRESS 
			IF (X GT Y) 
				X=X+3 
				ORG	X 
				DW	0FFFFh 
			ENDIF 
		ENDIF 
		ENDM 
;===================================================== 
 
.LIST 
 
DGROUP		GROUP	FCODE 
FCODE		SEGMENT DWORD PUBLIC 'CODE' 
		ASSUME	CS:DGROUP 
 
 
;---------------------------------------------------------------------------- 
;       apm32BitInterface - APM 32Bit protected mode entry point. 
; 
		Public	apm32BitInterface 
apm32BitInterface PROC FAR 
 
	push	ebp				; Actually pushing EBP 
 
; Set up stack for return from 16 bit code to 32 bit code 
	mov	bp, cs 
	push	bp 
	mov	ebp, OFFSET apm16To32Ret 
	push	bp 
 
; Set up stack for call to 16-bit code 
	mov		bp, cs			; Get selector of 32-bit CS 
	add		bp, 8 			; IMPORTANT: Put 16-bit selector on stack 
	push		bp 
 
	extrn	apm16BitInterface:near 
	mov	ebp, OFFSET apm16BitInterface 
	push	bp 
 
	DB		66h				; Do a 16-bit far return to 16-bit entry point 
	ret 
 
; This returns to the APM caller's code 
apm16To32Ret: 
 
	pop		ebp				; Restore EBP 
	ret						; Return to 32-bit code 
 
				 
apm32BitInterface	ENDP 
 
FCODE		ENDS 
		END