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head/lib/libc/mips/string/strchr.S
| Show All 38 Lines | #if defined(LIBC_SCCS) && !defined(lint) | ||||
| ASMSTR("from: @(#)index.s 8.1 (Berkeley) 6/4/93") | ASMSTR("from: @(#)index.s 8.1 (Berkeley) 6/4/93") | ||||
| ASMSTR("$NetBSD: index.S,v 1.8 2005/04/22 06:59:00 simonb Exp $") | ASMSTR("$NetBSD: index.S,v 1.8 2005/04/22 06:59:00 simonb Exp $") | ||||
| #endif /* LIBC_SCCS and not lint */ | #endif /* LIBC_SCCS and not lint */ | ||||
| #ifdef __ABICALLS__ | #ifdef __ABICALLS__ | ||||
| .abicalls | .abicalls | ||||
| #endif | #endif | ||||
| /* | |||||
| * char * | |||||
| * strchr(const char *s, int c); | |||||
| */ | |||||
| LEAF(strchr) | LEAF(strchr) | ||||
| and a1, a1, 0xff | |||||
| 1: | 1: | ||||
| lbu a2, 0(a0) # get a byte | lbu a2, 0(a0) # get a byte | ||||
| PTR_ADDU a0, a0, 1 | PTR_ADDU a0, a0, 1 | ||||
| beq a2, a1, fnd | beq a2, a1, fnd | ||||
| bne a2, zero, 1b | bne a2, zero, 1b | ||||
| notfnd: | notfnd: | ||||
| move v0, zero | move v0, zero | ||||
| j ra | j ra | ||||
| fnd: | fnd: | ||||
| PTR_SUBU v0, a0, 1 | PTR_SUBU v0, a0, 1 | ||||
| j ra | j ra | ||||
| END(strchr) | END(strchr) | ||||
| WEAK_ALIAS(index, strchr) | WEAK_ALIAS(index, strchr) | ||||