File: [local] / OpenXM_contrib / gmp / mpn / mips64 / Attic / addmul_1.asm (download)
Revision 1.1.1.1 (vendor branch), Mon Aug 25 16:06:23 2003 UTC (21 years ago) by ohara
Branch: GMP
CVS Tags: VERSION_4_1_2, RELEASE_1_2_3, RELEASE_1_2_2_KNOPPIX_b, RELEASE_1_2_2_KNOPPIX Changes since 1.1: +0 -0
lines
Import gmp 4.1.2
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dnl MIPS64 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, 1995, 2000, 2001, 2002 Free Software Foundation,
dnl Inc.
dnl This file is part of the GNU MP Library.
dnl The GNU MP Library is free software; you can redistribute it and/or modify
dnl it under the terms of the GNU Lesser General Public License as published
dnl by the Free Software Foundation; either version 2.1 of the License, or (at
dnl your option) any later version.
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 Lesser General Public
dnl License for more details.
dnl You should have received a copy of the GNU Lesser General Public License
dnl along with the GNU MP Library; see the file COPYING.LIB. If not, write to
dnl the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
dnl MA 02111-1307, USA.
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
ld $8,0($5)
C feed-in phase 1
daddiu $5,$5,8
dmultu $8,$7
daddiu $6,$6,-1
beq $6,$0,$LC0
move $2,$0 C zero cy2
daddiu $6,$6,-1
beq $6,$0,$LC1
ld $8,0($5) C load new s1 limb as early as possible
Loop: ld $10,0($4)
mflo $3
mfhi $9
daddiu $5,$5,8
daddu $3,$3,$2 C add old carry limb to low product limb
dmultu $8,$7
ld $8,0($5) C load new s1 limb as early as possible
daddiu $6,$6,-1 C decrement loop counter
sltu $2,$3,$2 C carry from previous addition -> $2
daddu $3,$10,$3
sltu $10,$3,$10
daddu $2,$2,$10
sd $3,0($4)
daddiu $4,$4,8
bne $6,$0,Loop
daddu $2,$9,$2 C add high product limb and carry from addition
C wind-down phase 1
$LC1: ld $10,0($4)
mflo $3
mfhi $9
daddu $3,$3,$2
sltu $2,$3,$2
dmultu $8,$7
daddu $3,$10,$3
sltu $10,$3,$10
daddu $2,$2,$10
sd $3,0($4)
daddiu $4,$4,8
daddu $2,$9,$2 C add high product limb and carry from addition
C wind-down phase 0
$LC0: ld $10,0($4)
mflo $3
mfhi $9
daddu $3,$3,$2
sltu $2,$3,$2
daddu $3,$10,$3
sltu $10,$3,$10
daddu $2,$2,$10
sd $3,0($4)
j $31
daddu $2,$9,$2 C add high product limb and carry from addition
EPILOGUE(mpn_addmul_1)