From 37da2899f40661e3e9631e497da8dc59b971cbd0 Mon Sep 17 00:00:00 2001
From: "Charles.Forsyth" <devnull@localhost>
Date: Fri, 22 Dec 2006 17:07:39 +0000
Subject: 20060303a

---
 libkern/strchr-386.s | 29 +++++++++++++++++++++++++++++
 1 file changed, 29 insertions(+)
 create mode 100644 libkern/strchr-386.s

(limited to 'libkern/strchr-386.s')

diff --git a/libkern/strchr-386.s b/libkern/strchr-386.s
new file mode 100644
index 00000000..e437caf2
--- /dev/null
+++ b/libkern/strchr-386.s
@@ -0,0 +1,29 @@
+	TEXT	strchr(SB),$0
+/*
+ * look for null
+ */
+	MOVL	p+0(FP), DI
+	MOVL	$-1, CX
+	MOVL	$0, AX
+	CLD
+
+	REPN;	SCASB
+
+/*
+ * look for real char
+ */
+	MOVL	DI, CX
+	MOVL	p+0(FP), DI
+	SUBL	DI, CX
+	MOVBLZX	c+4(FP), AX
+
+	REPN;	SCASB
+
+	JEQ	found
+	MOVL	$0, AX
+	RET
+
+found:
+	MOVL	DI, AX
+	SUBL	$1, AX
+	RET
-- 
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