| /* |
| * Copyright 2005-2010 Analog Devices Inc. |
| * |
| * Licensed under the ADI BSD license or the GPL-2 (or later) |
| */ |
| |
| #include <linux/linkage.h> |
| |
| /* void *strcmp(char *s1, const char *s2); |
| * R0 = address (s1) |
| * R1 = address (s2) |
| * |
| * Returns an integer less than, equal to, or greater than zero if s1 |
| * (or the first n bytes thereof) is found, respectively, to be less |
| * than, to match, or be greater than s2. |
| */ |
| |
| #ifdef CONFIG_STRCMP_L1 |
| .section .l1.text |
| #else |
| .text |
| #endif |
| |
| .align 2 |
| |
| ENTRY(_strcmp) |
| P0 = R0 ; /* s1 */ |
| P1 = R1 ; /* s2 */ |
| |
| 1: |
| R0 = B[P0++] (Z); /* get *s1 */ |
| R1 = B[P1++] (Z); /* get *s2 */ |
| CC = R0 == R1; /* compare a byte */ |
| if ! cc jump 2f; /* not equal, break out */ |
| CC = R0; /* at end of s1? */ |
| if cc jump 1b (bp); /* no, keep going */ |
| jump.s 3f; /* strings are equal */ |
| 2: |
| R0 = R0 - R1; /* *s1 - *s2 */ |
| 3: |
| RTS; |
| |
| ENDPROC(_strcmp) |