| xf.li | bfc6e71 | 2025-02-07 01:54:34 -0800 | [diff] [blame^] | 1 | /* Aligned copy routines specified by Sparc V9 ABI. |
| 2 | For 64-bit sparc. |
| 3 | Copyright (C) 2010-2016 Free Software Foundation, Inc. |
| 4 | This file is part of the GNU C Library. |
| 5 | Contributed by David S. Miller (davem@davemloft.net) |
| 6 | |
| 7 | The GNU C Library is free software; you can redistribute it and/or |
| 8 | modify it under the terms of the GNU Lesser General Public |
| 9 | License as published by the Free Software Foundation; either |
| 10 | version 2.1 of the License, or (at your option) any later version. |
| 11 | |
| 12 | The GNU C Library is distributed in the hope that it will be useful, |
| 13 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 15 | Lesser General Public License for more details. |
| 16 | |
| 17 | You should have received a copy of the GNU Lesser General Public |
| 18 | License along with the GNU C Library; if not, see |
| 19 | <http://www.gnu.org/licenses/>. */ |
| 20 | |
| 21 | #include <sysdep.h> |
| 22 | |
| 23 | .text |
| 24 | .align 8 |
| 25 | ENTRY(__align_cpy_8) |
| 26 | 10: cmp %o0, %o1 |
| 27 | be,pn %xcc, 9f |
| 28 | mov %o0, %o3 |
| 29 | subcc %o2, 0x08, %o2 |
| 30 | be,pn %xcc, 8f |
| 31 | 1: ldx [%o1 + 0x00], %o5 |
| 32 | ldx [%o1 + 0x08], %o4 |
| 33 | subcc %o2, 0x10, %o2 |
| 34 | add %o1, 0x10, %o1 |
| 35 | stx %o5, [%o3 + 0x00] |
| 36 | stx %o4, [%o3 + 0x08] |
| 37 | bg,pt %xcc, 1b |
| 38 | add %o3, 0x10, %o3 |
| 39 | bne,pn %xcc, 9f |
| 40 | nop |
| 41 | ldx [%o1 + 0x00], %o5 |
| 42 | 8: stx %o5, [%o3 + 0x00] |
| 43 | 9: retl |
| 44 | nop |
| 45 | END(__align_cpy_8) |
| 46 | |
| 47 | .align 8 |
| 48 | ENTRY(__align_cpy_4) |
| 49 | 20: cmp %o0, %o1 |
| 50 | be,pn %xcc, 9f |
| 51 | mov %o0, %o3 |
| 52 | subcc %o2, 0x04, %o2 |
| 53 | be,pn %xcc, 8f |
| 54 | 1: lduw [%o1 + 0x00], %o5 |
| 55 | lduw [%o1 + 0x04], %o4 |
| 56 | subcc %o2, 0x08, %o2 |
| 57 | add %o1, 0x08, %o1 |
| 58 | stw %o5, [%o3 + 0x00] |
| 59 | stw %o4, [%o3 + 0x04] |
| 60 | bg,pt %xcc, 1b |
| 61 | add %o3, 0x08, %o3 |
| 62 | bne,pn %xcc, 9f |
| 63 | nop |
| 64 | lduw [%o1 + 0x00], %o5 |
| 65 | 8: stw %o5, [%o3 + 0x00] |
| 66 | 9: retl |
| 67 | nop |
| 68 | END(__align_cpy_4) |
| 69 | |
| 70 | .align 8 |
| 71 | ENTRY(__align_cpy_2) |
| 72 | or %o0, %o1, %o3 |
| 73 | or %o2, %o3, %o3 |
| 74 | andcc %o3, 0x7, %g0 |
| 75 | be,pt %xcc, 10b |
| 76 | andcc %o3, 0x3, %g0 |
| 77 | be,pt %xcc, 20b |
| 78 | mov %o7, %g1 |
| 79 | call HIDDEN_JUMPTARGET(memcpy) |
| 80 | mov %o7, %g1 |
| 81 | END(__align_cpy_2) |
| 82 | |
| 83 | weak_alias (__align_cpy_8, __align_cpy_16) |
| 84 | weak_alias (__align_cpy_2, __align_cpy_1) |