Initial revision

2005-04-21 14:53:53 +00:00
commit 9865aeaa79
2264 changed files with 411685 additions and 0 deletions
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+!	memchr()					Author: Kees J. Bot
+!								2 Jan 1994
+.sect .text; .sect .rom; .sect .data; .sect .bss
+
+! void *memchr(const void *s, int c, size_t n)
+!	Look for a character in a chunk of memory.
+!
+.sect .text
+.define _memchr
+	.align	16
+_memchr:
+	push	ebp
+	mov	ebp, esp
+	push	edi
+	mov	edi, 8(ebp)	! edi = string
+	movb	al, 12(ebp)	! The character to look for
+	mov	ecx, 16(ebp)	! Length
+	cmpb	cl, 1		! 'Z' bit must be clear if ecx = 0
+	cld
+	repne
+	scasb
+	jne	failure
+	lea	eax, -1(edi)	! Found
+	pop	edi
+	pop	ebp
+	ret
+failure:xor	eax, eax
+	pop	edi
+	pop	ebp
+	ret