2ef2b01e07
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
36 lines
996 B
ArmAsm
36 lines
996 B
ArmAsm
#------------------------------------------------------------------------------
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#
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# Copyright (c) 2008-2009 Apple Inc. All rights reserved.
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#
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# All rights reserved. This program and the accompanying materials
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# are licensed and made available under the terms and conditions of the BSD License
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# which accompanies this distribution. The full text of the license may be found at
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# http://opensource.org/licenses/bsd-license.php
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#
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# THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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# WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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#
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#------------------------------------------------------------------------------
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.text
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.align 2
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.globl _memcpy
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_memcpy:
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@ args = 0, pretend = 0, frame = 0
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@ frame_needed = 1, uses_anonymous_args = 0
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stmfd sp!, {r7, lr}
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mov ip, #0
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add r7, sp, #0
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mov lr, r0
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b L4
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L5:
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ldrb r3, [r1], #1 @ zero_extendqisi2
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add ip, ip, #1
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and r3, r3, #255
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strb r3, [lr], #1
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L4:
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cmp ip, r2
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bne L5
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ldmfd sp!, {r7, pc}
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