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| /*
| * Copyright 2005-2009 Analog Devices Inc.
| *
| * Licensed under the Clear BSD license or the GPL-2 (or later)
| */
|
| #include <linux/linkage.h>
|
| /* void *memchr(const void *s, int c, size_t n);
| * R0 = address (s)
| * R1 = sought byte (c)
| * R2 = count (n)
| *
| * Returns pointer to located character.
| */
|
| .text
|
| .align 2
|
| ENTRY(_memchr)
| P0 = R0; /* P0 = address */
| P2 = R2; /* P2 = count */
| R1 = R1.B(Z);
| CC = R2 == 0;
| IF CC JUMP .Lfailed;
|
| .Lbytes:
| LSETUP (.Lbyte_loop_s, .Lbyte_loop_e) LC0=P2;
|
| .Lbyte_loop_s:
| R3 = B[P0++](Z);
| CC = R3 == R1;
| IF CC JUMP .Lfound;
| .Lbyte_loop_e:
| NOP;
|
| .Lfailed:
| R0=0;
| RTS;
|
| .Lfound:
| R0 = P0;
| R0 += -1;
| RTS;
|
| ENDPROC(_memchr)
|
|
