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ArmPkg/CompilerIntrinsicsLib: Add uread, uwrite GCC assembly sources

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The new sources are a copy of the RVCT version.

Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Cc: Leif Lindholm <leif.lindholm@linaro.org>
Signed-off-by: Pete Batard <pete@akeo.ie>
Reviewed-by: Leif Lindholm <leif.lindholm@linaro.org>
This commit is contained in:
Pete Batard
2019-05-13 09:54:16 +01:00
committed by Leif Lindholm
parent d039044be4
commit 96ef5a8e30
3 changed files with 109 additions and 0 deletions
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53
ArmPkg/Library/CompilerIntrinsicsLib/Arm/uwrite.S Normal file
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#------------------------------------------------------------------------------
#
# Copyright (c) 2008 - 2009, Apple Inc. All rights reserved.<BR>
#
# SPDX-License-Identifier: BSD-2-Clause-Patent
#
#------------------------------------------------------------------------------
#include <AsmMacroIoLib.h>
#
#UINT32
#EFIAPI
#__aeabi_uwrite4 (
# IN UINT32 Data,
# IN VOID *Pointer
# );
#
ASM_FUNC(__aeabi_uwrite4)
mov r2, r0, lsr #8
strb r0, [r1]
strb r2, [r1, #1]
mov r2, r0, lsr #16
strb r2, [r1, #2]
mov r2, r0, lsr #24
strb r2, [r1, #3]
bx lr
#
#UINT64
#EFIAPI
#__aeabi_uwrite8 (
# IN UINT64 Data,
# IN VOID *Pointer
# );
#
ASM_FUNC(__aeabi_uwrite8)
mov r3, r0, lsr #8
strb r0, [r2]
strb r3, [r2, #1]
mov r3, r0, lsr #16
strb r3, [r2, #2]
mov r3, r0, lsr #24
strb r3, [r2, #3]
mov r3, r1, lsr #8
strb r1, [r2, #4]
strb r3, [r2, #5]
mov r3, r1, lsr #16
strb r3, [r2, #6]
mov r3, r1, lsr #24
strb r3, [r2, #7]
bx lr