e58427e396
Introduce CRT assembly replacements for __rt_sdiv, __rt_udiv, __rt_udiv64, __rt_sdiv64, __rt_srsh (by reusing the RVCT code) as well as memcpy and memset. For MSFT compatibility, some of the code needs to be explicitly forced to ARM, and the /oldit assembly flag needs to be added. Also, while RVCT_ASM_EXPORT macro invocations have been removed, the replacement code is designed to be as close as possible to the one that would have been generated if using the macros. Contributed-under: TianoCore Contribution Agreement 1.1 Signed-off-by: Pete Batard <pete@akeo.ie> Reviewed-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
46 lines
1.2 KiB
NASM
46 lines
1.2 KiB
NASM
//------------------------------------------------------------------------------
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//
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// Copyright (c) 2008 - 2009, Apple Inc. All rights reserved.<BR>
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// Copyright (c) 2018, Pete Batard. All rights reserved.<BR>
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//
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// 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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EXPORT __aeabi_llsr
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EXPORT __rt_srsh
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AREA s___aeabi_llsr, CODE, READONLY, ARM
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ARM
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;
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;VOID
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;EFIAPI
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;__aeabi_llsr (
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; IN UINT64 Value,
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; IN UINT32 Shift
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;)
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;
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__aeabi_llsr
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__rt_srsh
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SUBS r3,r2,#0x20
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BPL __aeabi_llsr_label1
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RSB r3,r2,#0x20
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LSR r0,r0,r2
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ORR r0,r0,r1,LSL r3
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LSR r1,r1,r2
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BX lr
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__aeabi_llsr_label1
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LSR r0,r1,r3
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MOV r1,#0
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BX lr
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END
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