diff options
| author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 15:20:36 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 15:20:36 -0700 |
| commit | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch) | |
| tree | 0bba044c4ce775e45a88a51686b5d9f90697ea9d /arch/frv/lib/insl_sw.S | |
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!
Diffstat (limited to 'arch/frv/lib/insl_sw.S')
| -rw-r--r-- | arch/frv/lib/insl_sw.S | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/arch/frv/lib/insl_sw.S b/arch/frv/lib/insl_sw.S new file mode 100644 index 00000000000..9b5aa95d069 --- /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 |