ArmPkg: update RVCT assembly functions to use new RVCT_ASM_EXPORT macro

[mirror_edk2.git] / ArmPkg / Library / CompilerIntrinsicsLib / Arm / memcpy4.asm

//------------------------------------------------------------------------------\r
//\r
// Copyright (c) 2008 - 2009, Apple Inc. All rights reserved.<BR>\r
//\r
// This program and the accompanying materials\r
// are licensed and made available under the terms and conditions of the BSD License\r
// which accompanies this distribution.  The full text of the license may be found at\r
// http://opensource.org/licenses/bsd-license.php\r
//\r
// THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
// WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
//\r
//------------------------------------------------------------------------------\r
\r
\r
\r
    INCLUDE AsmMacroExport.inc\r
\r
;\r
;VOID\r
;EFIAPI\r
;__aeabi_memcpy (\r
; IN  VOID    *Destination,\r
; IN  VOID    *Source,\r
; IN  UINT32  Size\r
; );\r
;\r
 RVCT_ASM_EXPORT __aeabi_memcpy4\r
    stmdb   sp!, {r4, lr}\r
    subs    r2, r2, #32     ; 0x20\r
    bcc     memcpy4_label2\r
memcpy4_label1\r
    ldmcsia r1!, {r3, r4, ip, lr}\r
    stmcsia r0!, {r3, r4, ip, lr}\r
    ldmcsia r1!, {r3, r4, ip, lr}\r
    stmcsia r0!, {r3, r4, ip, lr}\r
    subcss  r2, r2, #32     ; 0x20\r
    bcs     memcpy4_label1\r
memcpy4_label2\r
    movs    ip, r2, lsl #28\r
    ldmcsia r1!, {r3, r4, ip, lr}\r
    stmcsia r0!, {r3, r4, ip, lr}\r
    ldmmiia r1!, {r3, r4}\r
    stmmiia r0!, {r3, r4}\r
    ldmia   sp!, {r4, lr}\r
    movs    ip, r2, lsl #30\r
    ldrcs   r3, [r1], #4\r
    strcs   r3, [r0], #4\r
    bxeq    lr\r
\r
_memcpy4_lastbytes_aligned\r
    movs    r2, r2, lsl #31\r
    ldrcsh  r3, [r1], #2\r
    ldrmib  r2, [r1], #1\r
    strcsh  r3, [r0], #2\r
    strmib  r2, [r0], #1\r
    bx      lr\r
\r
    END\r
\r