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| author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-17 00:20:36 +0200 |
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| committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-17 00:20:36 +0200 |
| commit | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch) | |
| tree | 0bba044c4ce775e45a88a51686b5d9f90697ea9d /arch/frv/lib/__lshrdi3.S | |
| download | linux-1da177e4c3f41524e886b7f1b8a0c1fc7321cac2.tar.xz linux-1da177e4c3f41524e886b7f1b8a0c1fc7321cac2.zip | |
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/__lshrdi3.S')
| -rw-r--r-- | arch/frv/lib/__lshrdi3.S | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/arch/frv/lib/__lshrdi3.S b/arch/frv/lib/__lshrdi3.S new file mode 100644 index 000000000000..7b41f6304f04 --- /dev/null +++ b/arch/frv/lib/__lshrdi3.S @@ -0,0 +1,40 @@ +/* __lshrdi3.S: 64-bit logical shift right + * + * 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 + +############################################################################### +# +# unsigned long long __lshrdi3(unsigned long long value [GR8:GR9], unsigned by [GR10]) +# +############################################################################### + .globl __lshrdi3 + .type __lshrdi3,@function +__lshrdi3: + andicc.p gr10,#63,gr10,icc0 + setlos #32,gr5 + andicc.p gr10,#32,gr0,icc1 + beqlr icc0,#0 + ckeq icc1,cc4 ; cc4 is true if 0<N<32 + + # deal with a shift in the range 1<=N<=31 + csrl.p gr9,gr10,gr9 ,cc4,#1 ; LSW >>= N + csub gr5,gr10,gr5 ,cc4,#1 ; M = 32 - N + csll.p gr8,gr5,gr4 ,cc4,#1 + csrl gr8,gr10,gr8 ,cc4,#1 ; MSW >>= N + cor.p gr4,gr9,gr9 ,cc4,#1 ; LSW |= MSW << M + + # deal with a shift in the range 32<=N<=63 + csrl gr8,gr10,gr9 ,cc4,#0 ; LSW = MSW >> (N & 31 [implicit AND]) + cor.p gr0,gr0,gr8 ,cc4,#0 ; MSW = 0 + bralr + .size __lshrdi3, .-__lshrdi3 |