1 # Alpha __mpn_add_n -- Add two limb vectors of the same length > 0 and 2 # store sum in a third limb vector. 3 4 # Copyright (C) 1995-2021 Free Software Foundation, Inc. 5 6 # This file is part of the GNU MP Library. 7 8 # The GNU MP Library is free software; you can redistribute it and/or modify 9 # it under the terms of the GNU Lesser General Public License as published by 10 # the Free Software Foundation; either version 2.1 of the License, or (at your 11 # option) any later version. 12 13 # The GNU MP Library is distributed in the hope that it will be useful, but 14 # WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY 15 # or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public 16 # License for more details. 17 18 # You should have received a copy of the GNU Lesser General Public License 19 # along with the GNU MP Library. If not, see <https://www.gnu.org/licenses/>. 20 21 22 # INPUT PARAMETERS 23 # res_ptr $16 24 # s1_ptr $17 25 # s2_ptr $18 26 # size $19 27 28 .set noreorder 29 .set noat 30.text 31 .align 3 32 .globl __mpn_add_n 33 .ent __mpn_add_n 34__mpn_add_n: 35 .frame $30,0,$26,0 36 37 ldq $3,0($17) 38 ldq $4,0($18) 39 40 subq $19,1,$19 41 and $19,4-1,$2 # number of limbs in first loop 42 bis $31,$31,$0 43 beq $2,.L0 # if multiple of 4 limbs, skip first loop 44 45 subq $19,$2,$19 46 47.Loop0: subq $2,1,$2 48 ldq $5,8($17) 49 addq $4,$0,$4 50 ldq $6,8($18) 51 cmpult $4,$0,$1 52 addq $3,$4,$4 53 cmpult $4,$3,$0 54 stq $4,0($16) 55 or $0,$1,$0 56 57 addq $17,8,$17 58 addq $18,8,$18 59 bis $5,$5,$3 60 bis $6,$6,$4 61 addq $16,8,$16 62 bne $2,.Loop0 63 64.L0: beq $19,.Lend 65 66 .align 3 67.Loop: subq $19,4,$19 68 69 ldq $5,8($17) 70 addq $4,$0,$4 71 ldq $6,8($18) 72 cmpult $4,$0,$1 73 addq $3,$4,$4 74 cmpult $4,$3,$0 75 stq $4,0($16) 76 or $0,$1,$0 77 78 ldq $3,16($17) 79 addq $6,$0,$6 80 ldq $4,16($18) 81 cmpult $6,$0,$1 82 addq $5,$6,$6 83 cmpult $6,$5,$0 84 stq $6,8($16) 85 or $0,$1,$0 86 87 ldq $5,24($17) 88 addq $4,$0,$4 89 ldq $6,24($18) 90 cmpult $4,$0,$1 91 addq $3,$4,$4 92 cmpult $4,$3,$0 93 stq $4,16($16) 94 or $0,$1,$0 95 96 ldq $3,32($17) 97 addq $6,$0,$6 98 ldq $4,32($18) 99 cmpult $6,$0,$1 100 addq $5,$6,$6 101 cmpult $6,$5,$0 102 stq $6,24($16) 103 or $0,$1,$0 104 105 addq $17,32,$17 106 addq $18,32,$18 107 addq $16,32,$16 108 bne $19,.Loop 109 110.Lend: addq $4,$0,$4 111 cmpult $4,$0,$1 112 addq $3,$4,$4 113 cmpult $4,$3,$0 114 stq $4,0($16) 115 or $0,$1,$0 116 ret $31,($26),1 117 118 .end __mpn_add_n 119