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/mips32/addmul_1.asm | 101 ++++++++++++++++++++++++++++++++++++++
 1 file changed, 101 insertions(+)
 create mode 100644 gmp-6.3.0/mpn/mips32/addmul_1.asm

(limited to 'gmp-6.3.0/mpn/mips32/addmul_1.asm')

diff --git a/gmp-6.3.0/mpn/mips32/addmul_1.asm b/gmp-6.3.0/mpn/mips32/addmul_1.asm
new file mode 100644
index 0000000..9aa9e16
--- /dev/null
+++ b/gmp-6.3.0/mpn/mips32/addmul_1.asm
@@ -0,0 +1,101 @@
+dnl  MIPS32 mpn_addmul_1 -- Multiply a limb vector with a single limb and add
+dnl  the product to a second limb vector.
+
+dnl  Copyright 1992, 1994, 1996, 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 s1_ptr	$5
+C size		$6
+C s2_limb	$7
+
+ASM_START()
+PROLOGUE(mpn_addmul_1)
+
+C feed-in phase 0
+	lw	$8,0($5)
+
+C feed-in phase 1
+	addiu	$5,$5,4
+	multu	$8,$7
+
+	addiu	$6,$6,-1
+	beq	$6,$0,$LC0
+	 move	$2,$0		C zero cy2
+
+	addiu	$6,$6,-1
+	beq	$6,$0,$LC1
+	lw	$8,0($5)	C load new s1 limb as early as possible
+
+Loop:	lw	$10,0($4)
+	mflo	$3
+	mfhi	$9
+	addiu	$5,$5,4
+	addu	$3,$3,$2	C add old carry limb to low product limb
+	multu	$8,$7
+	lw	$8,0($5)	C load new s1 limb as early as possible
+	addiu	$6,$6,-1	C decrement loop counter
+	sltu	$2,$3,$2	C carry from previous addition -> $2
+	addu	$3,$10,$3
+	sltu	$10,$3,$10
+	addu	$2,$2,$10
+	sw	$3,0($4)
+	addiu	$4,$4,4
+	bne	$6,$0,Loop
+	 addu	$2,$9,$2	C add high product limb and carry from addition
+
+C wind-down phase 1
+$LC1:	lw	$10,0($4)
+	mflo	$3
+	mfhi	$9
+	addu	$3,$3,$2
+	sltu	$2,$3,$2
+	multu	$8,$7
+	addu	$3,$10,$3
+	sltu	$10,$3,$10
+	addu	$2,$2,$10
+	sw	$3,0($4)
+	addiu	$4,$4,4
+	addu	$2,$9,$2	C add high product limb and carry from addition
+
+C wind-down phase 0
+$LC0:	lw	$10,0($4)
+	mflo	$3
+	mfhi	$9
+	addu	$3,$3,$2
+	sltu	$2,$3,$2
+	addu	$3,$10,$3
+	sltu	$10,$3,$10
+	addu	$2,$2,$10
+	sw	$3,0($4)
+	j	$31
+	addu	$2,$9,$2	C add high product limb and carry from addition
+EPILOGUE(mpn_addmul_1)
-- 
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