title	Module from library BASE_2 : FILEOP
	name	('FILEOP')
	maclib	baselib.lib

; Entry module for open an existing file or
; create a new directory entry function

; Copyright (C)	Werner Cirsovius
;		Hohe Weide 44
;		D-20253 Hamburg
;		Tel.: +49-40-4223247

;		Version 3.0 October 1988

; ENTRY	Reg pair <DE> points to FCB
;	Accu holds BDOS function

; EXIT	On normal return carry is reset
;	On error carry will be set 
;	Accu holds content of reg H

	public	@filop

	extrn	@BDOS

@filop:
	push	hl
	push	ix
	push	de
	pop	ix		; .. copy FCB
	ld	(ix+_EX),0	; Clear extent
	ld	(ix+_CR),0	; Clear record
	call	@BDOS		; Execute function
	rla			; Fix for error
	ld	a,h		; Get extended error
	pop	ix
	pop	hl
	ret

	end