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-rw-r--r--sysdeps/sparc/sparc32/udiv_qrnnd.S165
1 files changed, 165 insertions, 0 deletions
diff --git a/sysdeps/sparc/sparc32/udiv_qrnnd.S b/sysdeps/sparc/sparc32/udiv_qrnnd.S
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+! SPARC  __udiv_qrnnd division support, used from longlong.h.
+
+! Copyright (C) 1993, 1994, 1997 Free Software Foundation, Inc.
+
+! This file is part of the GNU MP Library.
+
+! The GNU MP Library is free software; you can redistribute it and/or modify
+! it under the terms of the GNU Library General Public License as published by
+! the Free Software Foundation; either version 2 of the License, or (at your
+! option) any later version.
+
+! The GNU MP 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 Library General Public
+! License for more details.
+
+! You should have received a copy of the GNU Library General Public License
+! along with the GNU MP Library; see the file COPYING.LIB.  If not, write to
+! the Free Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+
+! Added PIC support - May/96, Miguel de Icaza
+
+! INPUT PARAMETERS
+! rem_ptr	i0
+! n1		i1
+! n0		i2
+! d		i3
+
+#include "sysdep.h"
+#undef ret	/* Kludge for glibc */
+
+	.text
+	.align	8
+
+	.type two_to_32,@object
+two_to_32:
+	.double	0r4294967296
+	.size two_to_32,8
+
+	.type two_to_31,@object
+two_to_31:
+	.double	0r2147483648
+	.size two_to_31,8
+
+	.align	4
+	.global	__udiv_qrnnd
+	.type	__udiv_qrnnd,@function
+ENTRY(__udiv_qrnnd)
+	!#PROLOGUE# 0
+	save	%sp,-104,%sp
+	!#PROLOGUE# 1
+	st	%i1,[%fp-8]
+	ld	[%fp-8],%f10
+#ifdef PIC
+.Lbase:	call	1f
+	fitod	%f10,%f4
+1:	ldd	[%o7-(.Lbase-two_to_32)],%f8
+#else
+	sethi	%hi(two_to_32),%o7
+	fitod	%f10,%f4
+	ldd	[%o7+%lo(two_to_32)],%f8
+#endif
+	cmp	%i1,0
+	bge	L248
+	mov	%i0,%i5
+	faddd	%f4,%f8,%f4
+.L248:
+	st	%i2,[%fp-8]
+	ld	[%fp-8],%f10
+	fmuld	%f4,%f8,%f6
+	cmp	%i2,0
+	bge	L249
+	fitod	%f10,%f2
+	faddd	%f2,%f8,%f2
+.L249:
+	st	%i3,[%fp-8]
+	faddd	%f6,%f2,%f2
+	ld	[%fp-8],%f10
+	cmp	%i3,0
+	bge	L250
+	fitod	%f10,%f4
+	faddd	%f4,%f8,%f4
+.L250:
+	fdivd	%f2,%f4,%f2
+#ifdef PIC
+	ldd	[%o7-(.Lbase-two_to_31)],%f4
+#else
+	sethi	%hi(two_to_31),%o7
+	ldd	[%o7+%lo(two_to_31)],%f4
+#endif
+	fcmped	%f2,%f4
+	nop
+	fbge,a	L251
+	fsubd	%f2,%f4,%f2
+	fdtoi	%f2,%f2
+	st	%f2,[%fp-8]
+	b	L252
+	ld	[%fp-8],%i4
+.L251:
+	fdtoi	%f2,%f2
+	st	%f2,[%fp-8]
+	ld	[%fp-8],%i4
+	sethi	%hi(-2147483648),%g2
+	xor	%i4,%g2,%i4
+.L252:
+	wr	%g0,%i4,%y
+	sra	%i3,31,%g2
+	and	%i4,%g2,%g2
+	andcc	%g0,0,%g1
+	mulscc	%g1,%i3,%g1
+	mulscc	%g1,%i3,%g1
+	mulscc	%g1,%i3,%g1
+	mulscc	%g1,%i3,%g1
+	mulscc	%g1,%i3,%g1
+	mulscc	%g1,%i3,%g1
+	mulscc	%g1,%i3,%g1
+	mulscc	%g1,%i3,%g1
+	mulscc	%g1,%i3,%g1
+	mulscc	%g1,%i3,%g1
+	mulscc	%g1,%i3,%g1
+	mulscc	%g1,%i3,%g1
+	mulscc	%g1,%i3,%g1
+	mulscc	%g1,%i3,%g1
+	mulscc	%g1,%i3,%g1
+	mulscc	%g1,%i3,%g1
+	mulscc	%g1,%i3,%g1
+	mulscc	%g1,%i3,%g1
+	mulscc	%g1,%i3,%g1
+	mulscc	%g1,%i3,%g1
+	mulscc	%g1,%i3,%g1
+	mulscc	%g1,%i3,%g1
+	mulscc	%g1,%i3,%g1
+	mulscc	%g1,%i3,%g1
+	mulscc	%g1,%i3,%g1
+	mulscc	%g1,%i3,%g1
+	mulscc	%g1,%i3,%g1
+	mulscc	%g1,%i3,%g1
+	mulscc	%g1,%i3,%g1
+	mulscc	%g1,%i3,%g1
+	mulscc	%g1,%i3,%g1
+	mulscc	%g1,%i3,%g1
+	mulscc	%g1,0,%g1
+	add	%g1,%g2,%i0
+	rd	%y,%g3
+	subcc	%i2,%g3,%o7
+	subxcc	%i1,%i0,%g0
+	be	L253
+	cmp	%o7,%i3
+
+	add	%i4,-1,%i0
+	add	%o7,%i3,%o7
+	st	%o7,[%i5]
+	ret
+	restore
+.L253:
+	blu	L246
+	mov	%i4,%i0
+	add	%i4,1,%i0
+	sub	%o7,%i3,%o7
+.L246:
+	st	%o7,[%i5]
+	ret
+	restore
+
+	.size	__udiv_qrnnd, .-__udiv_qrnnd