projects / mirror_edk2.git / blame
| Commit | Line | Data |
|---|---|---|
| 2ef2b01e A |
1 | //------------------------------------------------------------------------------ |
| 2 | // | |
| d6ebcab7 | 3 | // Copyright (c) 2008 - 2009, Apple Inc. All rights reserved.<BR> |
| 2ef2b01e | 4 | // |
| d6ebcab7 | 5 | // This program and the accompanying materials |
| 2ef2b01e A |
6 | // are licensed and made available under the terms and conditions of the BSD License |
| 7 | // which accompanies this distribution. The full text of the license may be found at | |
| 8 | // http://opensource.org/licenses/bsd-license.php | |
| 9 | // | |
| 10 | // THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, | |
| 11 | // WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. | |
| 12 | // | |
| 13 | //------------------------------------------------------------------------------ | |
| 14 | ||
| 15 | ||
| 16 | EXPORT __aeabi_memcpy4 | |
| 17 | ||
| 18 | AREA Memcpy4, CODE, READONLY | |
| 19 | ||
| 20 | ; | |
| 21 | ;VOID | |
| 22 | ;EFIAPI | |
| 23 | ;__aeabi_memcpy ( | |
| 24 | ; IN VOID *Destination, | |
| 25 | ; IN VOID *Source, | |
| 26 | ; IN UINT32 Size | |
| 27 | ; ); | |
| 28 | ; | |
| 29 | __aeabi_memcpy4 | |
| 30 | stmdb sp!, {r4, lr} | |
| 31 | subs r2, r2, #32 ; 0x20 | |
| 32 | bcc memcpy4_label2 | |
| 33 | memcpy4_label1 | |
| 34 | ldmcsia r1!, {r3, r4, ip, lr} | |
| 35 | stmcsia r0!, {r3, r4, ip, lr} | |
| 36 | ldmcsia r1!, {r3, r4, ip, lr} | |
| 37 | stmcsia r0!, {r3, r4, ip, lr} | |
| 38 | subcss r2, r2, #32 ; 0x20 | |
| 39 | bcs memcpy4_label1 | |
| 40 | memcpy4_label2 | |
| 41 | movs ip, r2, lsl #28 | |
| 42 | ldmcsia r1!, {r3, r4, ip, lr} | |
| 43 | stmcsia r0!, {r3, r4, ip, lr} | |
| 44 | ldmmiia r1!, {r3, r4} | |
| 45 | stmmiia r0!, {r3, r4} | |
| 46 | ldmia sp!, {r4, lr} | |
| 47 | movs ip, r2, lsl #30 | |
| 48 | ldrcs r3, [r1], #4 | |
| 49 | strcs r3, [r0], #4 | |
| 50 | bxeq lr | |
| 51 | ||
| 52 | _memcpy4_lastbytes_aligned | |
| 53 | movs r2, r2, lsl #31 | |
| 54 | ldrcsh r3, [r1], #2 | |
| 55 | ldrmib r2, [r1], #1 | |
| 56 | strcsh r3, [r0], #2 | |
| 57 | strmib r2, [r0], #1 | |
| 58 | bx lr | |
| 59 | ||
| 60 | END | |
| 61 |