Blame sysdeps/alpha/div.S

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/* Copyright (C) 1996-2018 Free Software Foundation, Inc.
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   This file is part of the GNU C Library.
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   Contributed by Richard Henderson <rth@tamu.edu>.
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   The GNU C Library is free software; you can redistribute it and/or
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   modify it under the terms of the GNU Lesser General Public
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   License as published by the Free Software Foundation; either
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   version 2.1 of the License, or (at your option) any later version.
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   The GNU C Library is distributed in the hope that it will be useful,
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   but WITHOUT ANY WARRANTY; without even the implied warranty of
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   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
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   Lesser General Public License for more details.
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   You should have received a copy of the GNU Lesser General Public
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   License along with the GNU C Library.  If not, see
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   <http://www.gnu.org/licenses/>.  */
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#include "div_libc.h"
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#undef FRAME
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#ifdef __alpha_fix__
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#define FRAME 0
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#else
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#define FRAME 16
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#endif
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	.set noat
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	.align 4
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	.globl div
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	.ent div
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div:
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	.frame sp, FRAME, ra
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#if FRAME > 0
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	lda	sp, -FRAME(sp)
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#endif
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#ifdef PROF
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	.set	macro
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	ldgp	gp, 0(pv)
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	lda	AT, _mcount
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	jsr	AT, (AT), _mcount
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	.set	nomacro
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	.prologue 1
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#else
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	.prologue 0
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#endif
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	beq	$18, $divbyzero
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	excb
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	mf_fpcr	$f10
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	_ITOFT2	$17, $f0, 0, $18, $f1, 8
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	cvtqt	$f0, $f0
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	cvtqt	$f1, $f1
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	divt/c	$f0, $f1, $f0
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	cvttq/c	$f0, $f0
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	excb
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	mt_fpcr	$f10
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	_FTOIT	$f0, $0, 0
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	mull	$0, $18, $1
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	subl	$17, $1, $1
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	stl	$0, 0(a0)
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	stl	$1, 4(a0)
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	mov	a0, v0
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#if FRAME > 0
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	lda	sp, FRAME(sp)
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#endif
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	ret
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$divbyzero:
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	mov	a0, v0
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	lda	a0, GEN_INTDIV
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	call_pal PAL_gentrap
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	stl	zero, 0(v0)
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	stl	zero, 4(v0)
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#if FRAME > 0
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	lda	sp, FRAME(sp)
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#endif
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	ret
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	.end div