| /* alpha add_n -- Add two limb vectors of the same length > 0 and store |
| * sum in a third limb vector. |
| * Copyright (C) 1995, 1998, 2001, 2002 Free Software Foundation, Inc. |
| * |
| * This file is part of Libgcrypt. |
| * |
| * Libgcrypt is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU Lesser General Public License as |
| * published by the Free Software Foundation; either version 2.1 of |
| * the License, or (at your option) any later version. |
| * |
| * Libgcrypt 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 Lesser General Public License for more details. |
| * |
| * You should have received a copy of the GNU Lesser General Public |
| * License along with this program; if not, write to the Free Software |
| * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA |
| */ |
| |
| |
| |
| /******************* |
| * mpi_limb_t |
| * _gcry_mpih_add_n( mpi_ptr_t res_ptr, ($16) |
| * mpi_ptr_t s1_ptr, ($17) |
| * mpi_ptr_t s2_ptr, ($18) |
| * mpi_size_t size) ($19) |
| */ |
| |
| |
| .set noreorder |
| .set noat |
| .text |
| .align 3 |
| .globl _gcry_mpih_add_n |
| .ent _gcry_mpih_add_n |
| _gcry_mpih_add_n: |
| .frame $30,0,$26,0 |
| |
| ldq $3,0($17) |
| ldq $4,0($18) |
| |
| subq $19,1,$19 |
| and $19,4-1,$2 # number of limbs in first loop |
| bis $31,$31,$0 |
| beq $2,.L0 # if multiple of 4 limbs, skip first loop |
| |
| subq $19,$2,$19 |
| |
| .Loop0: subq $2,1,$2 |
| ldq $5,8($17) |
| addq $4,$0,$4 |
| ldq $6,8($18) |
| cmpult $4,$0,$1 |
| addq $3,$4,$4 |
| cmpult $4,$3,$0 |
| stq $4,0($16) |
| or $0,$1,$0 |
| |
| addq $17,8,$17 |
| addq $18,8,$18 |
| bis $5,$5,$3 |
| bis $6,$6,$4 |
| addq $16,8,$16 |
| bne $2,.Loop0 |
| |
| .L0: beq $19,.Lend |
| |
| .align 3 |
| .Loop: subq $19,4,$19 |
| |
| ldq $5,8($17) |
| addq $4,$0,$4 |
| ldq $6,8($18) |
| cmpult $4,$0,$1 |
| addq $3,$4,$4 |
| cmpult $4,$3,$0 |
| stq $4,0($16) |
| or $0,$1,$0 |
| |
| ldq $3,16($17) |
| addq $6,$0,$6 |
| ldq $4,16($18) |
| cmpult $6,$0,$1 |
| addq $5,$6,$6 |
| cmpult $6,$5,$0 |
| stq $6,8($16) |
| or $0,$1,$0 |
| |
| ldq $5,24($17) |
| addq $4,$0,$4 |
| ldq $6,24($18) |
| cmpult $4,$0,$1 |
| addq $3,$4,$4 |
| cmpult $4,$3,$0 |
| stq $4,16($16) |
| or $0,$1,$0 |
| |
| ldq $3,32($17) |
| addq $6,$0,$6 |
| ldq $4,32($18) |
| cmpult $6,$0,$1 |
| addq $5,$6,$6 |
| cmpult $6,$5,$0 |
| stq $6,24($16) |
| or $0,$1,$0 |
| |
| addq $17,32,$17 |
| addq $18,32,$18 |
| addq $16,32,$16 |
| bne $19,.Loop |
| |
| .Lend: addq $4,$0,$4 |
| cmpult $4,$0,$1 |
| addq $3,$4,$4 |
| cmpult $4,$3,$0 |
| stq $4,0($16) |
| or $0,$1,$0 |
| ret $31,($26),1 |
| |
| .end _gcry_mpih_add_n |
| |
