| 1e57a462 |
1 | //------------------------------------------------------------------------------ \r |
| 2 | //\r |
| 3 | // Copyright (c) 2008 - 2009, Apple Inc. All rights reserved.<BR>\r |
| 4 | //\r |
| 5 | // This program and the accompanying materials\r |
| 6 | // are licensed and made available under the terms and conditions of the BSD License\r |
| 7 | // which accompanies this distribution. The full text of the license may be found at\r |
| 8 | // http://opensource.org/licenses/bsd-license.php\r |
| 9 | //\r |
| 10 | // THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r |
| 11 | // WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r |
| 12 | //\r |
| 13 | //------------------------------------------------------------------------------\r |
| 14 | \r |
| 15 | \r |
| 16 | EXPORT __aeabi_memcpy4\r |
| 17 | \r |
| 18 | AREA Memcpy4, CODE, READONLY\r |
| 19 | \r |
| 20 | ;\r |
| 21 | ;VOID\r |
| 22 | ;EFIAPI\r |
| 23 | ;__aeabi_memcpy (\r |
| 24 | ; IN VOID *Destination,\r |
| 25 | ; IN VOID *Source,\r |
| 26 | ; IN UINT32 Size\r |
| 27 | ; );\r |
| 28 | ;\r |
| 29 | __aeabi_memcpy4\r |
| 30 | stmdb sp!, {r4, lr}\r |
| 31 | subs r2, r2, #32 ; 0x20\r |
| 32 | bcc memcpy4_label2\r |
| 33 | memcpy4_label1\r |
| 34 | ldmcsia r1!, {r3, r4, ip, lr}\r |
| 35 | stmcsia r0!, {r3, r4, ip, lr}\r |
| 36 | ldmcsia r1!, {r3, r4, ip, lr}\r |
| 37 | stmcsia r0!, {r3, r4, ip, lr}\r |
| 38 | subcss r2, r2, #32 ; 0x20\r |
| 39 | bcs memcpy4_label1\r |
| 40 | memcpy4_label2\r |
| 41 | movs ip, r2, lsl #28\r |
| 42 | ldmcsia r1!, {r3, r4, ip, lr}\r |
| 43 | stmcsia r0!, {r3, r4, ip, lr}\r |
| 44 | ldmmiia r1!, {r3, r4}\r |
| 45 | stmmiia r0!, {r3, r4}\r |
| 46 | ldmia sp!, {r4, lr}\r |
| 47 | movs ip, r2, lsl #30\r |
| 48 | ldrcs r3, [r1], #4\r |
| 49 | strcs r3, [r0], #4\r |
| 50 | bxeq lr\r |
| 51 | \r |
| 52 | _memcpy4_lastbytes_aligned\r |
| 53 | movs r2, r2, lsl #31\r |
| 54 | ldrcsh r3, [r1], #2\r |
| 55 | ldrmib r2, [r1], #1\r |
| 56 | strcsh r3, [r0], #2\r |
| 57 | strmib r2, [r0], #1\r |
| 58 | bx lr\r |
| 59 | \r |
| 60 | END\r |
| 61 | \r |
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