title	Module from library BASE_3 : DSKSIZ
	name	('DSKSIZ')
	maclib	baselib.lib

; Compute disk size

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

;		Version 1.1 April 1987

; ENTRY	Accu holds drive
;	0 -> A ... 15 -> P

; EXIT	The first three bytes of the current DMA buffer
;	hold at DMA + 0 low    byte
;		DMA + 1 middle byte
;		DMA + 2 high   byte
;	of disk free records (128 Bytes each)

;	On normal return carry is reset
;	On error carry will be set and extended error
;	will be processed

	entry	dsksiz

	extrn	@error

dsksiz:
	_push_
	ld	e,a
	_OSCAL_	.getspc		; Get free space
	rla			; Fix for error
	ld	a,h		; Get extended error
	_pop_
	jp	@error		; Process error

	end