projects / thirdparty / glibc.git / blame
| Commit | Line | Data |
|---|---|---|
| d0c2d3b3 UD |
1 | /* MIPS3 __mpn_add_n -- Add two limb vectors of the same length > 0 and |
| 2 | * store sum in a third limb vector. | |
| 3 | * | |
| b168057a | 4 | * Copyright (C) 1995-2015 Free Software Foundation, Inc. |
| d0c2d3b3 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 | |
| d0c2d3b3 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 |
| d0c2d3b3 UD |
16 | * License for more details. |
| 17 | * | |
| f01ec467 | 18 | * You should have received a copy of the GNU Lesser General Public License |
| ab84e3ff PE |
19 | * along with the GNU MP Library. If not, see |
| 20 | * <http://www.gnu.org/licenses/>. | |
| d0c2d3b3 UD |
21 | */ |
| 22 | ||
| 23 | #include <sysdep.h> | |
| 3e9a9758 | 24 | #include <sys/asm.h> |
| d0c2d3b3 UD |
25 | |
| 26 | /* | |
| 27 | * INPUT PARAMETERS | |
| 28 | * res_ptr $4 | |
| 29 | * s1_ptr $5 | |
| 30 | * s2_ptr $6 | |
| 31 | * size $7 | |
| 32 | */ | |
| 5494bc3a | 33 | #ifdef __PIC__ |
| d0c2d3b3 UD |
34 | .option pic2 |
| 35 | #endif | |
| a6ee1783 | 36 | ENTRY (__mpn_add_n) |
| 5494bc3a | 37 | #ifdef __PIC__ |
| 3e9a9758 | 38 | SETUP_GP /* ??? unused */ |
| d0c2d3b3 | 39 | #endif |
| 3e9a9758 | 40 | .set noreorder |
| d0c2d3b3 UD |
41 | .set nomacro |
| 42 | ||
| 43 | ld $10,0($5) | |
| 44 | ld $11,0($6) | |
| 45 | ||
| 46 | daddiu $7,$7,-1 | |
| 47 | and $9,$7,4-1 # number of limbs in first loop | |
| 3e9a9758 RM |
48 | beq $9,$0,L(L0) # if multiple of 4 limbs, skip first loop |
| 49 | move $2,$0 | |
| d0c2d3b3 UD |
50 | |
| 51 | dsubu $7,$7,$9 | |
| 52 | ||
| 3e9a9758 | 53 | L(Loop0): daddiu $9,$9,-1 |
| d0c2d3b3 UD |
54 | ld $12,8($5) |
| 55 | daddu $11,$11,$2 | |
| 56 | ld $13,8($6) | |
| 57 | sltu $8,$11,$2 | |
| 58 | daddu $11,$10,$11 | |
| 59 | sltu $2,$11,$10 | |
| 60 | sd $11,0($4) | |
| 61 | or $2,$2,$8 | |
| 62 | ||
| 63 | daddiu $5,$5,8 | |
| 64 | daddiu $6,$6,8 | |
| 65 | move $10,$12 | |
| 66 | move $11,$13 | |
| 3e9a9758 RM |
67 | bne $9,$0,L(Loop0) |
| 68 | daddiu $4,$4,8 | |
| d0c2d3b3 | 69 | |
| 3e9a9758 RM |
70 | L(L0): beq $7,$0,L(Lend) |
| 71 | nop | |
| d0c2d3b3 | 72 | |
| 3e9a9758 | 73 | L(Loop): daddiu $7,$7,-4 |
| d0c2d3b3 UD |
74 | |
| 75 | ld $12,8($5) | |
| 76 | daddu $11,$11,$2 | |
| 77 | ld $13,8($6) | |
| 78 | sltu $8,$11,$2 | |
| 79 | daddu $11,$10,$11 | |
| 80 | sltu $2,$11,$10 | |
| 81 | sd $11,0($4) | |
| 82 | or $2,$2,$8 | |
| 83 | ||
| 84 | ld $10,16($5) | |
| 85 | daddu $13,$13,$2 | |
| 86 | ld $11,16($6) | |
| 87 | sltu $8,$13,$2 | |
| 88 | daddu $13,$12,$13 | |
| 89 | sltu $2,$13,$12 | |
| 90 | sd $13,8($4) | |
| 91 | or $2,$2,$8 | |
| 92 | ||
| 93 | ld $12,24($5) | |
| 94 | daddu $11,$11,$2 | |
| 95 | ld $13,24($6) | |
| 96 | sltu $8,$11,$2 | |
| 97 | daddu $11,$10,$11 | |
| 98 | sltu $2,$11,$10 | |
| 99 | sd $11,16($4) | |
| 100 | or $2,$2,$8 | |
| 101 | ||
| 102 | ld $10,32($5) | |
| 103 | daddu $13,$13,$2 | |
| 104 | ld $11,32($6) | |
| 105 | sltu $8,$13,$2 | |
| 106 | daddu $13,$12,$13 | |
| 107 | sltu $2,$13,$12 | |
| 108 | sd $13,24($4) | |
| 109 | or $2,$2,$8 | |
| 110 | ||
| 111 | daddiu $5,$5,32 | |
| 112 | daddiu $6,$6,32 | |
| 113 | ||
| 3e9a9758 RM |
114 | bne $7,$0,L(Loop) |
| 115 | daddiu $4,$4,32 | |
| d0c2d3b3 | 116 | |
| 3e9a9758 | 117 | L(Lend): daddu $11,$11,$2 |
| d0c2d3b3 UD |
118 | sltu $8,$11,$2 |
| 119 | daddu $11,$10,$11 | |
| 120 | sltu $2,$11,$10 | |
| 121 | sd $11,0($4) | |
| 122 | j $31 | |
| 123 | or $2,$2,$8 | |
| 124 | ||
| a6ee1783 | 125 | END (__mpn_add_n) |