linux/arch/blackfin/lib/strcpy.S

36 lines
529 B
ArmAsm

/*
* Copyright 2005-2010 Analog Devices Inc.
*
* Licensed under the ADI BSD license or the GPL-2 (or later)
*/
#include <linux/linkage.h>
/* void *strcpy(char *dest, const char *src);
* R0 = address (dest)
* R1 = address (src)
*
* Returns a pointer to the destination string dest
*/
#ifdef CONFIG_STRCPY_L1
.section .l1.text
#else
.text
#endif
.align 2
ENTRY(_strcpy)
P0 = R0 ; /* dst*/
P1 = R1 ; /* src*/
1:
R1 = B [P1++] (Z);
B [P0++] = R1;
CC = R1;
if cc jump 1b (bp);
RTS;
ENDPROC(_strcpy)