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authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 15:20:36 -0700
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 15:20:36 -0700
commit1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree0bba044c4ce775e45a88a51686b5d9f90697ea9d /arch/frv/lib/insl_sw.S
downloadconfigs-2.6.12-rc2.tar.gz
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
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+/* 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