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/mips64/lshift.asm | 99 +++++++++++++++++++++++++++++++++++++++++
 1 file changed, 99 insertions(+)
 create mode 100644 gmp-6.3.0/mpn/mips64/lshift.asm

(limited to 'gmp-6.3.0/mpn/mips64/lshift.asm')

diff --git a/gmp-6.3.0/mpn/mips64/lshift.asm b/gmp-6.3.0/mpn/mips64/lshift.asm
new file mode 100644
index 0000000..3440eaf
--- /dev/null
+++ b/gmp-6.3.0/mpn/mips64/lshift.asm
@@ -0,0 +1,99 @@
+dnl  MIPS64 mpn_lshift -- Left shift.
+
+dnl  Copyright 1995, 2000-2002 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 res_ptr	$4
+C src_ptr	$5
+C size		$6
+C cnt		$7
+
+ASM_START()
+PROLOGUE(mpn_lshift)
+	dsll	$2,$6,3
+	daddu	$5,$5,$2	C make r5 point at end of src
+	ld	$10,-8($5)	C load first limb
+	dsubu	$13,$0,$7
+	daddu	$4,$4,$2	C make r4 point at end of res
+	daddiu	$6,$6,-1
+	and	$9,$6,4-1	C number of limbs in first loop
+	beq	$9,$0,.L0	C if multiple of 4 limbs, skip first loop
+	 dsrl	$2,$10,$13	C compute function result
+
+	dsubu	$6,$6,$9
+
+.Loop0:	ld	$3,-16($5)
+	daddiu	$4,$4,-8
+	daddiu	$5,$5,-8
+	daddiu	$9,$9,-1
+	dsll	$11,$10,$7
+	dsrl	$12,$3,$13
+	move	$10,$3
+	or	$8,$11,$12
+	bne	$9,$0,.Loop0
+	 sd	$8,0($4)
+
+.L0:	beq	$6,$0,.Lend
+	 nop
+
+.Loop:	ld	$3,-16($5)
+	daddiu	$4,$4,-32
+	daddiu	$6,$6,-4
+	dsll	$11,$10,$7
+	dsrl	$12,$3,$13
+
+	ld	$10,-24($5)
+	dsll	$14,$3,$7
+	or	$8,$11,$12
+	sd	$8,24($4)
+	dsrl	$9,$10,$13
+
+	ld	$3,-32($5)
+	dsll	$11,$10,$7
+	or	$8,$14,$9
+	sd	$8,16($4)
+	dsrl	$12,$3,$13
+
+	ld	$10,-40($5)
+	dsll	$14,$3,$7
+	or	$8,$11,$12
+	sd	$8,8($4)
+	dsrl	$9,$10,$13
+
+	daddiu	$5,$5,-32
+	or	$8,$14,$9
+	bgtz	$6,.Loop
+	 sd	$8,0($4)
+
+.Lend:	dsll	$8,$10,$7
+	j	$31
+	sd	$8,-8($4)
+EPILOGUE(mpn_lshift)
-- 
cgit v1.2.3