| 1 | /* Aligned copy routines specified by Sparc V9 ABI. |
|---|
| 2 | For 64-bit sparc. |
|---|
| 3 | Copyright (C) 2010-2024 Free Software Foundation, Inc. |
|---|
| 4 | This file is part of the GNU C Library. |
|---|
| 5 | |
|---|
| 6 | The GNU C Library is free software; you can redistribute it and/or |
|---|
| 7 | modify it under the terms of the GNU Lesser General Public |
|---|
| 8 | License as published by the Free Software Foundation; either |
|---|
| 9 | version 2.1 of the License, or (at your option) any later version. |
|---|
| 10 | |
|---|
| 11 | The GNU C Library is distributed in the hope that it will be useful, |
|---|
| 12 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
|---|
| 13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
|---|
| 14 | Lesser General Public License for more details. |
|---|
| 15 | |
|---|
| 16 | You should have received a copy of the GNU Lesser General Public |
|---|
| 17 | License along with the GNU C Library; if not, see |
|---|
| 18 | <https://www.gnu.org/licenses/>. */ |
|---|
| 19 | |
|---|
| 20 | #include <sysdep.h> |
|---|
| 21 | |
|---|
| 22 | .text |
|---|
| 23 | .align 8 |
|---|
| 24 | ENTRY(__align_cpy_8) |
|---|
| 25 | 10: cmp %o0, %o1 |
|---|
| 26 | be,pn %xcc, 9f |
|---|
| 27 | mov %o0, %o3 |
|---|
| 28 | subcc %o2, 0x08, %o2 |
|---|
| 29 | be,pn %xcc, 8f |
|---|
| 30 | 1: ldx [%o1 + 0x00], %o5 |
|---|
| 31 | ldx [%o1 + 0x08], %o4 |
|---|
| 32 | subcc %o2, 0x10, %o2 |
|---|
| 33 | add %o1, 0x10, %o1 |
|---|
| 34 | stx %o5, [%o3 + 0x00] |
|---|
| 35 | stx %o4, [%o3 + 0x08] |
|---|
| 36 | bg,pt %xcc, 1b |
|---|
| 37 | add %o3, 0x10, %o3 |
|---|
| 38 | bne,pn %xcc, 9f |
|---|
| 39 | nop |
|---|
| 40 | ldx [%o1 + 0x00], %o5 |
|---|
| 41 | 8: stx %o5, [%o3 + 0x00] |
|---|
| 42 | 9: retl |
|---|
| 43 | nop |
|---|
| 44 | END(__align_cpy_8) |
|---|
| 45 | |
|---|
| 46 | .align 8 |
|---|
| 47 | ENTRY(__align_cpy_4) |
|---|
| 48 | 20: cmp %o0, %o1 |
|---|
| 49 | be,pn %xcc, 9f |
|---|
| 50 | mov %o0, %o3 |
|---|
| 51 | subcc %o2, 0x04, %o2 |
|---|
| 52 | be,pn %xcc, 8f |
|---|
| 53 | 1: lduw [%o1 + 0x00], %o5 |
|---|
| 54 | lduw [%o1 + 0x04], %o4 |
|---|
| 55 | subcc %o2, 0x08, %o2 |
|---|
| 56 | add %o1, 0x08, %o1 |
|---|
| 57 | stw %o5, [%o3 + 0x00] |
|---|
| 58 | stw %o4, [%o3 + 0x04] |
|---|
| 59 | bg,pt %xcc, 1b |
|---|
| 60 | add %o3, 0x08, %o3 |
|---|
| 61 | bne,pn %xcc, 9f |
|---|
| 62 | nop |
|---|
| 63 | lduw [%o1 + 0x00], %o5 |
|---|
| 64 | 8: stw %o5, [%o3 + 0x00] |
|---|
| 65 | 9: retl |
|---|
| 66 | nop |
|---|
| 67 | END(__align_cpy_4) |
|---|
| 68 | |
|---|
| 69 | .align 8 |
|---|
| 70 | ENTRY(__align_cpy_2) |
|---|
| 71 | or %o0, %o1, %o3 |
|---|
| 72 | or %o2, %o3, %o3 |
|---|
| 73 | andcc %o3, 0x7, %g0 |
|---|
| 74 | be,pt %xcc, 10b |
|---|
| 75 | andcc %o3, 0x3, %g0 |
|---|
| 76 | be,pt %xcc, 20b |
|---|
| 77 | mov %o7, %g1 |
|---|
| 78 | call HIDDEN_JUMPTARGET(memcpy) |
|---|
| 79 | mov %o7, %g1 |
|---|
| 80 | END(__align_cpy_2) |
|---|
| 81 | |
|---|
| 82 | weak_alias (__align_cpy_8, __align_cpy_16) |
|---|
| 83 | weak_alias (__align_cpy_2, __align_cpy_1) |
|---|
| 84 | |
|---|
