09831ca734
Original port to early 2.6 kernel using TI COFF toolchain. Brought up to date by Mark Salter <msalter@redhat.com> Signed-off-by: Aurelien Jacquiot <a-jacquiot@ti.com> Signed-off-by: Mark Salter <msalter@redhat.com> Acked-by: Arnd Bergmann <arnd@arndb.de>
46 lines
972 B
ArmAsm
46 lines
972 B
ArmAsm
; Port on Texas Instruments TMS320C6x architecture
|
|
;
|
|
; Copyright (C) 2006, 2009, 2010 Texas Instruments Incorporated
|
|
; Author: Aurelien Jacquiot (aurelien.jacquiot@jaluna.com)
|
|
;
|
|
; This program is free software; you can redistribute it and/or modify
|
|
; it under the terms of the GNU General Public License version 2 as
|
|
; published by the Free Software Foundation.
|
|
;
|
|
|
|
#include <linux/linkage.h>
|
|
|
|
.text
|
|
|
|
ENTRY(memcpy)
|
|
AND .L1 0x1,A6,A0
|
|
|| AND .S1 0x2,A6,A1
|
|
|| AND .L2X 0x4,A6,B0
|
|
|| MV .D1 A4,A3
|
|
|| MVC .S2 ILC,B2
|
|
|
|
[A0] LDB .D2T1 *B4++,A5
|
|
[A1] LDB .D2T1 *B4++,A7
|
|
[A1] LDB .D2T1 *B4++,A8
|
|
[B0] LDNW .D2T1 *B4++,A9
|
|
|| SHRU .S2X A6,0x3,B1
|
|
[!B1] BNOP .S2 B3,1
|
|
|
|
[A0] STB .D1T1 A5,*A3++
|
|
||[B1] MVC .S2 B1,ILC
|
|
[A1] STB .D1T1 A7,*A3++
|
|
[A1] STB .D1T1 A8,*A3++
|
|
[B0] STNW .D1T1 A9,*A3++ ; return when len < 8
|
|
|
|
SPLOOP 2
|
|
|
|
LDNDW .D2T1 *B4++,A9:A8
|
|
NOP 3
|
|
|
|
NOP
|
|
SPKERNEL 0,0
|
|
|| STNDW .D1T1 A9:A8,*A3++
|
|
|
|
BNOP .S2 B3,4
|
|
MVC .S2 B2,ILC
|
|
ENDPROC(memcpy)
|