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/ultrasparct1/submul_1.asm | 91 +++++++++++++++++++++++++
 1 file changed, 91 insertions(+)
 create mode 100644 gmp-6.3.0/mpn/sparc32/ultrasparct1/submul_1.asm

(limited to 'gmp-6.3.0/mpn/sparc32/ultrasparct1/submul_1.asm')

diff --git a/gmp-6.3.0/mpn/sparc32/ultrasparct1/submul_1.asm b/gmp-6.3.0/mpn/sparc32/ultrasparct1/submul_1.asm
new file mode 100644
index 0000000..8920070
--- /dev/null
+++ b/gmp-6.3.0/mpn/sparc32/ultrasparct1/submul_1.asm
@@ -0,0 +1,91 @@
+dnl  SPARC T1 32-bit mpn_submul_1.
+
+dnl  Contributed to the GNU project by David Miller.
+
+dnl  Copyright 2010, 2013 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		   cycles/limb
+C UltraSPARC T1:       24
+C UltraSPARC T2:       19
+C UltraSPARC T3:       19
+C UltraSPARC T4:       5
+
+C INPUT PARAMETERS
+define(`rp',	`%i0')
+define(`up',	`%i1')
+define(`n',	`%i2')
+define(`v0',	`%i3')
+
+ASM_START()
+PROLOGUE(mpn_submul_1)
+	save	%sp, -96, %sp
+	srl	n, 0, %o4
+	srl	v0, 0, %g1
+	subcc	%o4, 1, %o4
+	be	L(final_one)
+	 subcc	%g0, 0, %o5
+
+L(top):	lduw	[up+0], %l0
+	lduw	[rp+0], %l2
+	lduw	[up+4], %l1
+	lduw	[rp+4], %l3
+	mulx	%l0, %g1, %g3
+	add	up, 8, up
+	mulx	%l1, %g1, %o3
+	sub	%o4, 2, %o4
+	add	rp, 8, rp
+	addx	%o5, %g3, %g3
+	srlx	%g3, 32, %o5
+	subcc	%l2, %g3, %g3
+	stw	%g3, [rp-8]
+	addx	%o5, %o3, %o3
+	srlx	%o3, 32, %o5
+	subcc	%l3, %o3, %o3
+	brgz	%o4, L(top)
+	 stw	%o3, [rp-4]
+
+	brlz,pt	%o4, L(done)
+	 nop
+
+L(final_one):
+	lduw	[up+0], %l0
+	lduw	[rp+0], %l2
+	mulx	%l0, %g1, %g3
+	addx	%o5, %g3, %g3
+	srlx	%g3, 32, %o5
+	subcc	%l2, %g3, %g3
+	stw	%g3, [rp+0]
+
+L(done):
+	addx	%o5, 0, %o5
+	ret
+	 restore %o5, 0, %o0
+EPILOGUE()
-- 
cgit v1.2.3