X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=arch%2Ffrv%2Flib%2Finsl_sw.S;fp=arch%2Ffrv%2Flib%2Finsl_sw.S;h=9b5aa95d069b2a72bccb413f6d0ff69a563a7818;hb=87fc8d1bb10cd459024a742c6a10961fefcef18f;hp=0000000000000000000000000000000000000000;hpb=ae17e7656036804d46ec431260821023d4c8cb83;p=linux-2.6.git

diff --git a/arch/frv/lib/insl_sw.S b/arch/frv/lib/insl_sw.S
new file mode 100644
index 000000000..9b5aa95d0
--- /dev/null
+++ b/arch/frv/lib/insl_sw.S
@@ -0,0 +1,40 @@
+/* insl_sw.S: input array of 4b words from device port with byte swapping
+ *
+ * Copyright (C) 2003 Red Hat, Inc. All Rights Reserved.
+ * Written by David Howells (dhowells@redhat.com)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ */
+
+
+        .text
+        .p2align	4
+
+###############################################################################
+#
+# void __insl_sw(unsigned int port, void *buf, int n)
+#
+###############################################################################
+        .globl		__insl_sw
+        .type		__insl_sw,@function
+__insl_sw:
+	subi.p		gr9,#1,gr9
+	setlos		#1,gr4
+0:
+	ldi.p		@(gr8,#0),gr5		; get 0xAABBCCDD
+	subicc		gr10,#1,gr10,icc0
+
+	stbu.p		gr5,@(gr9,gr4)		; write 0xDD
+	srli		gr5,#8,gr5
+	stbu.p		gr5,@(gr9,gr4)		; write 0xCC
+	srli		gr5,#8,gr5
+	stbu.p		gr5,@(gr9,gr4)		; write 0xBB
+	srli		gr5,#8,gr5
+	stbu.p		gr5,@(gr9,gr4)		; write 0xAA
+	bhi		icc0,#2,0b
+	bralr
+
+	.size		__insl_sw, .-__insl_sw