From 11da511c784eca003deb90c23570f0873954e0de Mon Sep 17 00:00:00 2001
From: Duncan Wilkie <antigravityd@gmail.com>
Date: Sat, 18 Nov 2023 06:11:09 -0600
Subject: Initial commit.

---
 gmp-6.3.0/mpn/sparc32/v8/supersparc/udiv.asm | 131 +++++++++++++++++++++++++++
 1 file changed, 131 insertions(+)
 create mode 100644 gmp-6.3.0/mpn/sparc32/v8/supersparc/udiv.asm

(limited to 'gmp-6.3.0/mpn/sparc32/v8/supersparc/udiv.asm')

diff --git a/gmp-6.3.0/mpn/sparc32/v8/supersparc/udiv.asm b/gmp-6.3.0/mpn/sparc32/v8/supersparc/udiv.asm
new file mode 100644
index 0000000..12f66ce
--- /dev/null
+++ b/gmp-6.3.0/mpn/sparc32/v8/supersparc/udiv.asm
@@ -0,0 +1,131 @@
+dnl  SuperSPARC mpn_udiv_qrnnd division support, used from longlong.h.
+dnl  This is for SuperSPARC only, to compensate for its semi-functional
+dnl  udiv instruction.
+
+dnl  Copyright 1993, 1994, 1996, 2000 Free Software Foundation, Inc.
+
+dnl  This file is part of the GNU MP Library.
+dnl
+dnl  The GNU MP Library is free software; you can redistribute it and/or modify
+dnl  it under the terms of either:
+dnl
+dnl    * the GNU Lesser General Public License as published by the Free
+dnl      Software Foundation; either version 3 of the License, or (at your
+dnl      option) any later version.
+dnl
+dnl  or
+dnl
+dnl    * the GNU General Public License as published by the Free Software
+dnl      Foundation; either version 2 of the License, or (at your option) any
+dnl      later version.
+dnl
+dnl  or both in parallel, as here.
+dnl
+dnl  The GNU MP Library is distributed in the hope that it will be useful, but
+dnl  WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+dnl  or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+dnl  for more details.
+dnl
+dnl  You should have received copies of the GNU General Public License and the
+dnl  GNU Lesser General Public License along with the GNU MP Library.  If not,
+dnl  see https://www.gnu.org/licenses/.
+
+
+include(`../config.m4')
+
+C INPUT PARAMETERS
+C rem_ptr	i0
+C n1		i1
+C n0		i2
+C d		i3
+
+ASM_START()
+
+ifdef(`PIC',
+`	TEXT
+L(getpc):
+	retl
+	nop')
+
+	TEXT
+	ALIGN(8)
+L(C0):	.double	0r4294967296
+L(C1):	.double	0r2147483648
+
+PROLOGUE(mpn_udiv_qrnnd)
+	save	%sp,-104,%sp
+	st	%i1,[%fp-8]
+	ld	[%fp-8],%f10
+
+ifdef(`PIC',
+`L(pc):	call	L(getpc)		C put address of this insn in %o7
+	ldd	[%o7+L(C0)-L(pc)],%f8',
+`	sethi	%hi(L(C0)),%o7
+	ldd	[%o7+%lo(L(C0))],%f8')
+
+	fitod	%f10,%f4
+	cmp	%i1,0
+	bge	L(248)
+	mov	%i0,%i5
+	faddd	%f4,%f8,%f4
+L(248):
+	st	%i2,[%fp-8]
+	ld	[%fp-8],%f10
+	fmuld	%f4,%f8,%f6
+	cmp	%i2,0
+	bge	L(249)
+	fitod	%f10,%f2
+	faddd	%f2,%f8,%f2
+L(249):
+	st	%i3,[%fp-8]
+	faddd	%f6,%f2,%f2
+	ld	[%fp-8],%f10
+	cmp	%i3,0
+	bge	L(250)
+	fitod	%f10,%f4
+	faddd	%f4,%f8,%f4
+L(250):
+	fdivd	%f2,%f4,%f2
+
+ifdef(`PIC',
+`	ldd	[%o7+L(C1)-L(pc)],%f4',
+`	sethi	%hi(L(C1)),%o7
+	ldd	[%o7+%lo(L(C1))],%f4')
+
+	fcmped	%f2,%f4
+	nop
+	fbge,a	L(251)
+	fsubd	%f2,%f4,%f2
+	fdtoi	%f2,%f2
+	st	%f2,[%fp-8]
+	b	L(252)
+	ld	[%fp-8],%i4
+L(251):
+	fdtoi	%f2,%f2
+	st	%f2,[%fp-8]
+	ld	[%fp-8],%i4
+	sethi	%hi(-2147483648),%g2
+	xor	%i4,%g2,%i4
+L(252):
+	umul	%i3,%i4,%g3
+	rd	%y,%i0
+	subcc	%i2,%g3,%o7
+	subxcc	%i1,%i0,%g0
+	be	L(253)
+	cmp	%o7,%i3
+
+	add	%i4,-1,%i0
+	add	%o7,%i3,%o7
+	st	%o7,[%i5]
+	ret
+	restore
+L(253):
+	blu	L(246)
+	mov	%i4,%i0
+	add	%i4,1,%i0
+	sub	%o7,%i3,%o7
+L(246):
+	st	%o7,[%i5]
+	ret
+	restore
+EPILOGUE(mpn_udiv_qrnnd)
-- 
cgit v1.2.3