# MIPS3 __gmpn_mul_1 -- Multiply a limb vector with a single limb and # store the product in a second limb vector. # Copyright (C) 1992, 1994, 1995, 2000 Free Software Foundation, Inc. # This file is part of the GNU MP Library. # The GNU MP Library is free software; you can redistribute it and/or modify # it under the terms of the GNU Library General Public License as published by # the Free Software Foundation; either version 2 of the License, or (at your # option) any later version. # The GNU MP Library is distributed in the hope that it will be useful, but # WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY # or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public # License for more details. # You should have received a copy of the GNU Library General Public License # along with the GNU MP Library; see the file COPYING.LIB. If not, write to # the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, # MA 02111-1307, USA. # INPUT PARAMETERS # res_ptr $4 # s1_ptr $5 # size $6 # s2_limb $7 .text .align 4 .globl __gmpn_mul_1 .ent __gmpn_mul_1 __gmpn_mul_1: .set noreorder .set nomacro # warm up phase 0 ld $8,0($5) # warm up phase 1 daddiu $5,$5,8 dmultu $8,$7 daddiu $6,$6,-1 beq $6,$0,$LC0 move $2,$0 # zero cy2 daddiu $6,$6,-1 beq $6,$0,$LC1 ld $8,0($5) # load new s1 limb as early as possible Loop: mflo $10 mfhi $9 daddiu $5,$5,8 daddu $10,$10,$2 # add old carry limb to low product limb dmultu $8,$7 ld $8,0($5) # load new s1 limb as early as possible daddiu $6,$6,-1 # decrement loop counter sltu $2,$10,$2 # carry from previous addition -> $2 sd $10,0($4) daddiu $4,$4,8 bne $6,$0,Loop daddu $2,$9,$2 # add high product limb and carry from addition # cool down phase 1 $LC1: mflo $10 mfhi $9 daddu $10,$10,$2 sltu $2,$10,$2 dmultu $8,$7 sd $10,0($4) daddiu $4,$4,8 daddu $2,$9,$2 # add high product limb and carry from addition # cool down phase 0 $LC0: mflo $10 mfhi $9 daddu $10,$10,$2 sltu $2,$10,$2 sd $10,0($4) j $31 daddu $2,$9,$2 # add high product limb and carry from addition .end __gmpn_mul_1