diff options
Diffstat (limited to 'Build/source/libs/gmp/gmp-6.0.0/mpn/mips32/mul_1.asm')
-rw-r--r-- | Build/source/libs/gmp/gmp-6.0.0/mpn/mips32/mul_1.asm | 89 |
1 files changed, 89 insertions, 0 deletions
diff --git a/Build/source/libs/gmp/gmp-6.0.0/mpn/mips32/mul_1.asm b/Build/source/libs/gmp/gmp-6.0.0/mpn/mips32/mul_1.asm new file mode 100644 index 00000000000..4337bc2bd40 --- /dev/null +++ b/Build/source/libs/gmp/gmp-6.0.0/mpn/mips32/mul_1.asm @@ -0,0 +1,89 @@ +dnl MIPS32 mpn_mul_1 -- Multiply a limb vector with a single limb and store +dnl the product in 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_mul_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: mflo $10 + mfhi $9 + addiu $5,$5,4 + addu $10,$10,$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,$10,$2 C carry from previous addition -> $2 + sw $10,0($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: mflo $10 + mfhi $9 + addu $10,$10,$2 + sltu $2,$10,$2 + multu $8,$7 + sw $10,0($4) + addiu $4,$4,4 + addu $2,$9,$2 C add high product limb and carry from addition + +C wind-down phase 0 +$LC0: mflo $10 + mfhi $9 + addu $10,$10,$2 + sltu $2,$10,$2 + sw $10,0($4) + j $31 + addu $2,$9,$2 C add high product limb and carry from addition +EPILOGUE(mpn_mul_1) |