projects / mirror_edk2.git / blame
| Commit | Line | Data |
|---|---|---|
| 3402aac7 | 1 | //------------------------------------------------------------------------------\r |
| 1e57a462 | 2 | //\r |
| 284fb5c8 | 3 | // Copyright (c) 2011-2014, ARM Limited. All rights reserved.\r |
| 1e57a462 | 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 | |
| 1e57a462 | 16 | \r |
| efda1775 | 17 | INCLUDE AsmMacroExport.inc\r |
| 1e57a462 | 18 | \r |
| 19 | ;\r | |
| 20 | ;VOID\r | |
| 21 | ;EFIAPI\r | |
| 22 | ;__aeabi_memmove (\r | |
| 23 | ; IN VOID *Destination,\r | |
| 24 | ; IN CONST VOID *Source,\r | |
| 25 | ; IN UINT32 Size\r | |
| 26 | ; );\r | |
| 27 | ;\r | |
| efda1775 | 28 | RVCT_ASM_EXPORT __aeabi_memmove\r |
| 1e57a462 | 29 | CMP r2, #0\r |
| 284fb5c8 | 30 | BXEQ lr\r |
| 1e57a462 | 31 | CMP r0, r1\r |
| 284fb5c8 | 32 | BXEQ lr\r |
| 1e57a462 | 33 | BHI memmove_backward\r |
| 1e57a462 | 34 | \r |
| 35 | memmove_forward\r | |
| 36 | LDRB r3, [r1], #1\r | |
| 37 | STRB r3, [r0], #1\r | |
| 38 | SUBS r2, r2, #1\r | |
| 284fb5c8 OM |
39 | BNE memmove_forward\r |
| 40 | BX lr\r | |
| 1e57a462 | 41 | \r |
| 42 | memmove_backward\r | |
| 43 | add r0, r2\r | |
| 44 | add r1, r2\r | |
| 45 | memmove_backward_loop\r | |
| 284fb5c8 OM |
46 | LDRB r3, [r1, #-1]!\r |
| 47 | STRB r3, [r0, #-1]!\r | |
| 48 | SUBS r2, r2, #1\r | |
| 49 | BNE memmove_backward_loop\r | |
| 50 | BX lr\r | |
| 1e57a462 | 51 | \r |
| 52 | END\r |