cc65/libsrc/atari/sysmkdir.s

;
; Initial version: Stefan Haubenthal, 2005-12-24
; Some fixes: Christian Groessler, 2009-01-28
;
; unsigned char _sysmkdir (const char* name, ...);
; for SpartaDOS and MYDOS
;

	.include "atari.inc"
	.include "errno.inc"
	.import	addysp
	.import	popax
	.import	findfreeiocb
	.importzp tmp4
.ifdef	UCASE_FILENAME
	.importzp tmp3
	.import	ucase_fn
.endif
	.export	__sysmkdir

.proc	__sysmkdir

	dey			; parm count < 2 shouldn't be needed to be...
	dey			; ...checked (it generates a C compiler warning)
	beq	parmok		; branch if parameter count ok
	jsr	addysp		; fix stack, throw away unused parameters

parmok:	jsr	popax		; get name
	pha			; save input parameter
	txa
	pha

	jsr	findfreeiocb
	beq	iocbok		; we found one

	pla
	pla			; fix up stack

	lda	#TMOF		; too many open files
	rts

iocbok:	stx	tmp4		; remember IOCB index
	pla
	tax
	pla			; get argument again

.ifdef	UCASE_FILENAME

	jsr	ucase_fn
	bcc	ucok1

	lda	#182		; see oserror.s
	rts
ucok1:

.endif	; defined UCASE_FILENAME

	ldy	tmp4		; IOCB index
	sta	ICBAL,y		; store pointer to filename
	txa
	sta	ICBAH,y
	tya
	tax
	lda	#42
	sta	ICCOM,x
	lda	#8
	sta	ICAX1,x
	lda	#0
	sta	ICAX2,x
	sta	ICBLL,x
	sta	ICBLH,x
	jsr	CIOV

.ifdef	UCASE_FILENAME
	tya
	pha
	ldy	tmp3		; get size
	jsr	addysp		; free used space on the stack
	pla
	tay
.endif	; defined UCASE_FILENAME

	bmi	cioerr
	lda	#0
	rts
cioerr:	tya
	rts

.endproc	; __sysmkdir