diff options
| author | Michael J. Chudobiak <mjc@avtechpulse.com> | 2016-04-25 10:00:44 -0400 |
|---|---|---|
| committer | Michael J. Chudobiak <mjc@avtechpulse.com> | 2016-04-25 10:00:44 -0400 |
| commit | a1df417e74aa6dae7352dc8cbb0ad471af5b7c69 (patch) | |
| tree | c34b2311e37ea31db153c90cb8f4570374d05e78 /linux/arch/blackfin/lib/strcpy.S | |
initial Olimex linux tree from Daniel, originally Feb 3, 2016
Diffstat (limited to 'linux/arch/blackfin/lib/strcpy.S')
| -rw-r--r-- | linux/arch/blackfin/lib/strcpy.S | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/linux/arch/blackfin/lib/strcpy.S b/linux/arch/blackfin/lib/strcpy.S new file mode 100644 index 00000000..9495aa77 --- /dev/null +++ b/linux/arch/blackfin/lib/strcpy.S @@ -0,0 +1,35 @@ +/* + * Copyright 2005-2010 Analog Devices Inc. + * + * Licensed under the Clear 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) |