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Diffstat (limited to 'newlib/libc/machine/xscale/strchr.c')
-rw-r--r--newlib/libc/machine/xscale/strchr.c73
1 files changed, 0 insertions, 73 deletions
diff --git a/newlib/libc/machine/xscale/strchr.c b/newlib/libc/machine/xscale/strchr.c
deleted file mode 100644
index 3b736c53c..000000000
--- a/newlib/libc/machine/xscale/strchr.c
+++ /dev/null
@@ -1,73 +0,0 @@
-#if defined __thumb__
-
-#include "../../string/strchr.c"
-
-#else
-
-#include <string.h>
-#include "xscale.h"
-
-char *
-strchr (const char *s, int c)
-{
- unsigned int c2;
- asm (PRELOADSTR ("%0") : : "r" (s));
-
- c &= 0xff;
-
-#ifndef __OPTIMIZE_SIZE__
- /* Skip unaligned part. */
- if ((long)s & 3)
- {
- s--;
- do
- {
- int c2 = *++s;
- if (c2 == c)
- return (char *)s;
- if (c2 == '\0')
- return 0;
- }
- while (((long)s & 3) != 0);
- }
-
- c2 = c + (c << 8);
- c2 += c2 << 16;
-
- /* Load two constants:
- R6 = 0xfefefeff [ == ~(0x80808080 << 1) ]
- R5 = 0x80808080 */
-
- asm (PRELOADSTR ("%0") "\n\
- mov r5, #0x80\n\
- add r5, r5, #0x8000\n\
- add r5, r5, r5, lsl #16\n\
- mvn r6, r5, lsl #1\n\
-\n\
- sub %0, %0, #4\n\
-0:\n\
- ldr r1, [%0, #4]!\n\
-" PRELOADSTR ("%0") "\n\
- add r3, r1, r6\n\
- bic r3, r3, r1\n\
- ands r2, r3, r5\n\
- bne 1f\n\
- eor r2, r1, %1\n\
- add r3, r2, r6\n\
- bic r3, r3, r2\n\
- ands r1, r3, r5\n\
- beq 0b\n\
-1:"
- : "=&r" (s)
- : "r" (c2), "0" (s)
- : "r1", "r2", "r3", "r5", "r6", "cc");
-#endif
-
- while (*s && *s != c)
- s++;
- if (*s == c)
- return (char *)s;
- return NULL;
-}
-
-#endif