title	ATXT - distinguish which processor is whom 
	include dos.mac 
 
	PSEG 
 
;; This is callable from C and returns a boolean value.	 The codes are 
;;	0 - an 8088 
;;	1 - a 286 
;; other codes may be added 
	public	_ATXT 
	if	LPROG 
_ATXT	proc	far 
	else 
_ATXT	proc	near 
	endif 
 
; push the SP.	If we are an 8086/8088, we will have the new SP;  
; if we are an 80286 we will have the old sp 
 
	push	bx 
 
	mov	bx,sp	; save current sp 
 
	push	sp	; push it (this is the test!) 
 
; if sp = tos we are an 8088 
 
	pop	ax	; get the value we just pushed 
	cmp	ax,bx	; is it same as sp before push? 
	je	L286	; yes, we pushed current SP and we are an 80286 
	; it is different, it was incremented before pushing, we are 
	; an 8088 
	xor	ax,ax	; set ax to 0 
	jmp	return 
L286:	mov	ax,1	; set ax to 1, meaning '286 
return: pop	bx	; restore bx 
	ret 
_ATXT	ENDP 
	ENDPS 
	end