1 files changed, 47 insertions, 0 deletions
diff --git a/mdk-stage1/dietlibc/i386/strchr.S b/mdk-stage1/dietlibc/i386/strchr.S
new file mode 100644
index 000000000..0a2a5aa52
--- /dev/null
+++ b/mdk-stage1/dietlibc/i386/strchr.S
@@ -0,0 +1,47 @@
+#define NEW
+
+.text
+.global strchr
+strchr:
+	mov	%esi,%edx
+	mov	0x4(%esp,1),%esi
+	mov	0x8(%esp,1),%cl
+	cld
+.L1:
+	lods	(%esi),%eax
+	cmp	%al,%cl
+	jz .Lafound
+	test	%al,%al
+	jz .Lnotfound
+
+	cmp	%ah,%cl
+	jz .Lbfound
+	test	%ah,%ah
+	jz .Lnotfound
+
+	shr	$16,%eax
+	cmp	%al,%cl
+	jz .Lcfound
+	test	%al,%al
+	jz .Lnotfound
+
+	cmp	%ah,%cl
+	jz .Ldfound
+	test	%ah,%ah
+
+	jnz .L1
+.Lnotfound:
+	sub	%eax,%eax
+	mov	%edx,%esi
+	ret
+.Lafound:
+	dec	%esi
+.Lbfound:
+	dec	%esi
+.Lcfound:
+	dec	%esi
+.Ldfound:
+	mov	%esi,%eax
+	mov	%edx,%esi
+	dec	%eax
+	ret