projects / thirdparty / glibc.git / blame
| Commit | Line | Data |
|---|---|---|
| bcb5cee0 UD |
1 | /* MIPS2 __mpn_add_n -- Add two limb vectors of the same length > 0 and |
| 2 | store sum in a third limb vector. | |
| 3 | ||
| 04277e02 | 4 | Copyright (C) 1995-2019 Free Software Foundation, Inc. |
| bcb5cee0 UD |
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 | |
| f01ec467 AJ |
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 | |
| bcb5cee0 UD |
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 | |
| f01ec467 | 15 | or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public |
| bcb5cee0 UD |
16 | License for more details. |
| 17 | ||
| f01ec467 | 18 | You should have received a copy of the GNU Lesser General Public License |
| ab84e3ff | 19 | along with the GNU MP Library. If not, see |
| 5a82c748 | 20 | <https://www.gnu.org/licenses/>. */ |
| bcb5cee0 UD |
21 | |
| 22 | #include <sysdep.h> | |
| 23 | ||
| 24 | /* INPUT PARAMETERS | |
| 25 | res_ptr $4 | |
| 26 | s1_ptr $5 | |
| 27 | s2_ptr $6 | |
| 28 | size $7 | |
| 29 | */ | |
| 127035bb | 30 | #ifdef __PIC__ |
| bcb5cee0 UD |
31 | .option pic2 |
| 32 | #endif | |
| 33 | ENTRY (__mpn_add_n) | |
| 34 | .set noreorder | |
| 127035bb | 35 | #ifdef __PIC__ |
| bcb5cee0 UD |
36 | .cpload t9 |
| 37 | #endif | |
| 38 | .set nomacro | |
| 39 | ||
| 40 | lw $10,0($5) | |
| 41 | lw $11,0($6) | |
| 42 | ||
| 43 | addiu $7,$7,-1 | |
| 44 | and $9,$7,4-1 /* number of limbs in first loop */ | |
| 3e9a9758 | 45 | beq $9,$0,L(L0) /* if multiple of 4 limbs, skip first loop */ |
| bcb5cee0 UD |
46 | move $2,$0 |
| 47 | ||
| 48 | subu $7,$7,$9 | |
| 49 | ||
| 3e9a9758 | 50 | L(Loop0): addiu $9,$9,-1 |
| bcb5cee0 UD |
51 | lw $12,4($5) |
| 52 | addu $11,$11,$2 | |
| 53 | lw $13,4($6) | |
| 54 | sltu $8,$11,$2 | |
| 55 | addu $11,$10,$11 | |
| 56 | sltu $2,$11,$10 | |
| 57 | sw $11,0($4) | |
| 58 | or $2,$2,$8 | |
| 59 | ||
| 60 | addiu $5,$5,4 | |
| 61 | addiu $6,$6,4 | |
| 62 | move $10,$12 | |
| 63 | move $11,$13 | |
| 3e9a9758 RM |
64 | bne $9,$0,L(Loop0) |
| 65 | addiu $4,$4,4 | |
| bcb5cee0 | 66 | |
| 3e9a9758 RM |
67 | L(L0): beq $7,$0,L(end) |
| 68 | nop | |
| bcb5cee0 | 69 | |
| 3e9a9758 | 70 | L(Loop): addiu $7,$7,-4 |
| bcb5cee0 UD |
71 | |
| 72 | lw $12,4($5) | |
| 73 | addu $11,$11,$2 | |
| 74 | lw $13,4($6) | |
| 75 | sltu $8,$11,$2 | |
| 76 | addu $11,$10,$11 | |
| 77 | sltu $2,$11,$10 | |
| 78 | sw $11,0($4) | |
| 79 | or $2,$2,$8 | |
| 80 | ||
| 81 | lw $10,8($5) | |
| 82 | addu $13,$13,$2 | |
| 83 | lw $11,8($6) | |
| 84 | sltu $8,$13,$2 | |
| 85 | addu $13,$12,$13 | |
| 86 | sltu $2,$13,$12 | |
| 87 | sw $13,4($4) | |
| 88 | or $2,$2,$8 | |
| 89 | ||
| 90 | lw $12,12($5) | |
| 91 | addu $11,$11,$2 | |
| 92 | lw $13,12($6) | |
| 93 | sltu $8,$11,$2 | |
| 94 | addu $11,$10,$11 | |
| 95 | sltu $2,$11,$10 | |
| 96 | sw $11,8($4) | |
| 97 | or $2,$2,$8 | |
| 98 | ||
| 99 | lw $10,16($5) | |
| 100 | addu $13,$13,$2 | |
| 101 | lw $11,16($6) | |
| 102 | sltu $8,$13,$2 | |
| 103 | addu $13,$12,$13 | |
| 104 | sltu $2,$13,$12 | |
| 105 | sw $13,12($4) | |
| 106 | or $2,$2,$8 | |
| 107 | ||
| 108 | addiu $5,$5,16 | |
| 109 | addiu $6,$6,16 | |
| 110 | ||
| 3e9a9758 RM |
111 | bne $7,$0,L(Loop) |
| 112 | addiu $4,$4,16 | |
| bcb5cee0 | 113 | |
| 3e9a9758 | 114 | L(end): addu $11,$11,$2 |
| bcb5cee0 UD |
115 | sltu $8,$11,$2 |
| 116 | addu $11,$10,$11 | |
| 117 | sltu $2,$11,$10 | |
| 118 | sw $11,0($4) | |
| 119 | j $31 | |
| 120 | or $2,$2,$8 | |
| a6ee1783 | 121 | END (__mpn_add_n) |