1 files changed, 26 insertions, 0 deletions
diff --git a/S/str_diffn.S b/S/str_diffn.S
new file mode 100644
index 0000000..954d88f
--- /dev/null
+++ b/S/str_diffn.S
@@ -0,0 +1,26 @@
+.globl str_diffn
+.type	str_diffn, @function
+str_diffn:
+	pushl	%edi
+	pushl	%esi
+	movl	12(%esp), %esi
+	movl	16(%esp), %edi
+	movl	20(%esp), %ecx
+.L1:
+	decl	%ecx
+	js	.L2
+	lodsb
+	scasb
+	jne	.L3
+	testb	 %al,%al
+	jne	.L1
+.L2:	
+	xorl	%eax,%eax
+	jmp	.L4
+.L3:	
+	sbbl	%eax,%eax
+	orb	$1,%al
+.L4:
+	popl	%esi
+	popl	%edi
+	ret