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/sparc64/ultrasparct3/submul_1.asm | 170 ++++++++++++++++++++++++
 1 file changed, 170 insertions(+)
 create mode 100644 gmp-6.3.0/mpn/sparc64/ultrasparct3/submul_1.asm

(limited to 'gmp-6.3.0/mpn/sparc64/ultrasparct3/submul_1.asm')

diff --git a/gmp-6.3.0/mpn/sparc64/ultrasparct3/submul_1.asm b/gmp-6.3.0/mpn/sparc64/ultrasparct3/submul_1.asm
new file mode 100644
index 0000000..5635d1b
--- /dev/null
+++ b/gmp-6.3.0/mpn/sparc64/ultrasparct3/submul_1.asm
@@ -0,0 +1,170 @@
+dnl  SPARC v9 mpn_submul_1 for T3/T4/T5.
+
+dnl  Contributed to the GNU project by David Miller and Torbjörn Granlund.
+
+dnl  Copyright 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 T3:	26
+C UltraSPARC T4:	 4.5
+
+C INPUT PARAMETERS
+define(`rp', `%i0')
+define(`up', `%i1')
+define(`n',  `%i2')
+define(`v0', `%i3')
+
+ASM_START()
+	REGISTER(%g2,#scratch)
+	REGISTER(%g3,#scratch)
+PROLOGUE(mpn_submul_1)
+	save	%sp, -176, %sp
+	ldx	[up+0], %g1
+
+	and	n, 3, %g5
+	add	n, -4, n
+	brz	%g5, L(b00)
+	 cmp	%g5, 2
+	bcs	%xcc, L(b01)
+	 nop
+	bne	%xcc, L(b11)
+	 ldx	[up+8], %g4
+
+L(b10):	add	up, 16, up
+	addcc	%g0, 0, %g3
+	mulx	%g1, v0, %l4
+	umulxhi(%g1, v0, %l5)
+	ldx	[rp+0], %o2
+	mulx	%g4, v0, %l6
+	umulxhi(%g4, v0, %l7)
+	brlz	n, L(wd2)
+	 nop
+L(gt2):	ldx	[up+0], %o0
+	b	L(lo2)
+	 nop
+
+L(b00):	add	rp, -16, rp
+	addcc	%g0, 0, %g3
+	ldx	[up+8], %o1
+	mulx	%g1, v0, %l0
+	umulxhi(%g1, v0, %l1)
+	ldx	[up+16], %o0
+	ldx	[rp+16], %o2
+	mulx	%o1, v0, %l2
+	umulxhi(%o1, v0, %l3)
+	b	     L(lo0)
+	 nop
+
+L(b01):	add	up, 8, up
+	add	rp, -8, rp
+	addcc	%g0, 0, %g3
+	ldx	[rp+8], %o3
+	mulx	%g1, v0, %l6
+	umulxhi(%g1, v0, %l7)
+	brlz	n, L(wd1)
+	 nop
+	ldx	[up+0], %o0
+	ldx	[up+8], %o1
+	mulx	%o0, v0, %l0
+	umulxhi(%o0, v0, %l1)
+	b	L(lo1)
+	 nop
+
+L(b11):	add	up, 24, up
+	add	rp, 8, rp
+	addcc	%g0, 0, %g3
+	mulx	%g1, v0, %l2
+	umulxhi(%g1, v0, %l3)
+	ldx	[up-8], %o1
+	ldx	[rp-8], %o3
+	mulx	%g4, v0, %l4
+	umulxhi(%g4, v0, %l5)
+	brlz	n, L(end)
+	 nop
+
+	ALIGN(16)
+L(top):	ldx	[up+0], %o0
+	addxccc(%g3, %l2, %g1)
+	ldx	[rp+0], %o2
+	addxc(	%g0, %l3, %g3)
+	mulx	%o1, v0, %l6
+	subcc	%o3, %g1, %g4
+	umulxhi(%o1, v0, %l7)
+	stx	%g4, [rp-8]
+L(lo2):	ldx	[up+8], %o1
+	addxccc(%g3, %l4, %g1)
+	ldx	[rp+8], %o3
+	addxc(	%g0, %l5, %g3)
+	mulx	%o0, v0, %l0
+	subcc	%o2, %g1, %g4
+	umulxhi(%o0, v0, %l1)
+	stx	%g4, [rp+0]
+L(lo1):	ldx	[up+16], %o0
+	addxccc(%g3, %l6, %g1)
+	ldx	[rp+16], %o2
+	addxc(	%g0, %l7, %g3)
+	mulx	%o1, v0, %l2
+	subcc	%o3, %g1, %g4
+	umulxhi(%o1, v0, %l3)
+	stx	%g4, [rp+8]
+L(lo0):	ldx	[up+24], %o1
+	addxccc(%g3, %l0, %g1)
+	ldx	[rp+24], %o3
+	addxc(	%g0, %l1, %g3)
+	mulx	%o0, v0, %l4
+	subcc	%o2, %g1, %g4
+	umulxhi(%o0, v0, %l5)
+	stx	%g4, [rp+16]
+	add	n, -4, n
+	add	up, 32, up
+	brgez	n, L(top)
+	 add	rp, 32, rp
+
+L(end):	addxccc(%g3, %l2, %g1)
+	ldx	[rp+0], %o2
+	addxc(	%g0, %l3, %g3)
+	mulx	%o1, v0, %l6
+	subcc	%o3, %g1, %g4
+	umulxhi(%o1, v0, %l7)
+	stx	%g4, [rp-8]
+L(wd2):	addxccc(%g3, %l4, %g1)
+	ldx	[rp+8], %o3
+	addxc(	%g0, %l5, %g3)
+	subcc	%o2, %g1, %g4
+	stx	%g4, [rp+0]
+L(wd1):	addxccc(%g3, %l6, %g1)
+	addxc(	%g0, %l7, %g3)
+	subcc	%o3, %g1, %g4
+	stx	%g4, [rp+8]
+	addxc(	%g0, %g3, %i0)
+	ret
+	 restore
+EPILOGUE()
-- 
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