*** fmod.s
* 	Double Precision Remainder
*	for Alcyon C
*
*	double fmod(d1,d2)
*	double d1, d2; (d1 < infinity, d2 > 0)
*
*	Copyright Atari Corp. 1987,1988
*
*	MDJohnson       2/15/88
***

	.include fpmacro

; fmod(x,y)
	fpinit	fmod
	fpidle				; wait for idle state
	move.w	#$5400,FPCMD		; x -> fp0
	ckcir	#$9608			; ready for double
	move.l	4(sp),FPOP		; write first half
	move.l	8(sp),FPOP		; write second half

	fpidle				; wait for idle state
	move.w	#$5425,FPCMD		; x - ( y * floor(x / y))
	ckcir	#$9608			; ready for double
	move.l	12(sp),FPOP		; write first half
	move.l	16(sp),FPOP		; write second half

	fpidle				; wait for idle state
	move.w	#$7400,FPCMD		; fp0 -> double
	ckcir	#$B208			; ready for double
	move.l	FPOP,d0			; get double
	move.l	FPOP,d1
	rts