/* Copyright (C) 2004 Free Software Foundation, Inc.
   This file is part of the GNU C Library.

   The GNU C Library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Lesser General Public
   License as published by the Free Software Foundation; either
   version 2.1 of the License, or (at your option) any later version.

   The GNU C Library is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   Lesser General Public License for more details.

   You should have received a copy of the GNU Lesser General Public
   License along with the GNU C Library; if not, write to the Free
   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
   02111-1307 USA.  */

#include "div_libc.h"

/* 32-bit signed int divide.  This is not a normal C function.  Argument
   registers are t10 and t11, the result goes in t12.  Only t12 and AT may
   be clobbered.

   The FPU can handle all input values except zero.  Whee!  */

#ifndef EXTEND
#define EXTEND(S,D)	sextl S, D
#endif

	.text
	.align	4
	.globl	__divl
	.type	__divl, @function
	.usepv	__divl, no

	cfi_startproc
	cfi_return_column (RA)
__divl:
	lda	sp, -FRAME(sp)
	cfi_def_cfa_offset (FRAME)
	CALL_MCOUNT
	stt	$f0, 0(sp)
	stt	$f1, 8(sp)
	beq	Y, DIVBYZERO
	cfi_rel_offset ($f0, 0)
	cfi_rel_offset ($f1, 8)

	EXTEND	(X, RV)
	EXTEND	(Y, AT)
	_ITOFT2	RV, $f0, 16, AT, $f1, 24
	cvtqt	$f0, $f0
	cvtqt	$f1, $f1
	divt/c	$f0, $f1, $f0
	cvttq/c	$f0, $f0
	_FTOIT	$f0, RV, 16

	ldt	$f0, 0(sp)
	ldt	$f1, 8(sp)
	lda	sp, FRAME(sp)
	cfi_restore ($f0)
	cfi_restore ($f1)
	cfi_def_cfa_offset (0)
	sextl	RV, RV
	ret	$31, (RA), 1

	cfi_endproc
	.size	__divl, .-__divl

	DO_DIVBYZERO