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| author | AJFISH <AJFISH@6f19259b-4bc3-4df7-8a09-765794883524> | 2009-12-06 01:57:05 +0000 |
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| committer | AJFISH <AJFISH@6f19259b-4bc3-4df7-8a09-765794883524> | 2009-12-06 01:57:05 +0000 |
| commit | 2ef2b01e07c02db339f34004445734a2dbdd80e1 (patch) | |
| tree | 19532a6be8d8bdb0aef04bd00c1efb582f6dc841 /ArmPkg/Library/CompilerIntrinsicsLib/Arm/memcpy4.asm | |
| parent | f7753a96ba1653ddd31b01c198a352f6332ac404 (diff) | |
| download | edk2-platforms-2ef2b01e07c02db339f34004445734a2dbdd80e1.tar.xz | |
Adding support for BeagleBoard.
ArmPkg - Supoprt for ARM specific things that can change as the architecture changes. Plus semihosting JTAG drivers.
EmbeddedPkg - Generic support for an embeddded platform. Including a light weight command line shell.
BeagleBoardPkg - Platform specifics for BeagleBoard. SD Card works, but USB has issues. Looks like a bug in the open source USB stack (Our internal stack works fine).
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@9518 6f19259b-4bc3-4df7-8a09-765794883524
Diffstat (limited to 'ArmPkg/Library/CompilerIntrinsicsLib/Arm/memcpy4.asm')
| -rw-r--r-- | ArmPkg/Library/CompilerIntrinsicsLib/Arm/memcpy4.asm | 61 |
1 files changed, 61 insertions, 0 deletions
diff --git a/ArmPkg/Library/CompilerIntrinsicsLib/Arm/memcpy4.asm b/ArmPkg/Library/CompilerIntrinsicsLib/Arm/memcpy4.asm new file mode 100644 index 0000000000..fb251c1eaa --- /dev/null +++ b/ArmPkg/Library/CompilerIntrinsicsLib/Arm/memcpy4.asm @@ -0,0 +1,61 @@ +//------------------------------------------------------------------------------ +// +// Copyright (c) 2008-2009 Apple Inc. All rights reserved. +// +// All rights reserved. This program and the accompanying materials +// are licensed and made available under the terms and conditions of the BSD License +// which accompanies this distribution. The full text of the license may be found at +// http://opensource.org/licenses/bsd-license.php +// +// THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, +// WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. +// +//------------------------------------------------------------------------------ + + + EXPORT __aeabi_memcpy4 + + AREA Memcpy4, CODE, READONLY + +; +;VOID +;EFIAPI +;__aeabi_memcpy ( +; IN VOID *Destination, +; IN VOID *Source, +; IN UINT32 Size +; ); +; +__aeabi_memcpy4 + stmdb sp!, {r4, lr} + subs r2, r2, #32 ; 0x20 + bcc memcpy4_label2 +memcpy4_label1 + ldmcsia r1!, {r3, r4, ip, lr} + stmcsia r0!, {r3, r4, ip, lr} + ldmcsia r1!, {r3, r4, ip, lr} + stmcsia r0!, {r3, r4, ip, lr} + subcss r2, r2, #32 ; 0x20 + bcs memcpy4_label1 +memcpy4_label2 + movs ip, r2, lsl #28 + ldmcsia r1!, {r3, r4, ip, lr} + stmcsia r0!, {r3, r4, ip, lr} + ldmmiia r1!, {r3, r4} + stmmiia r0!, {r3, r4} + ldmia sp!, {r4, lr} + movs ip, r2, lsl #30 + ldrcs r3, [r1], #4 + strcs r3, [r0], #4 + bxeq lr + +_memcpy4_lastbytes_aligned + movs r2, r2, lsl #31 + ldrcsh r3, [r1], #2 + ldrmib r2, [r1], #1 + strcsh r3, [r0], #2 + strmib r2, [r0], #1 + bx lr + + END + |