diff options
author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
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committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
commit | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch) | |
tree | 0bba044c4ce775e45a88a51686b5d9f90697ea9d /arch/frv/lib/__ashldi3.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/__ashldi3.S')
-rw-r--r-- | arch/frv/lib/__ashldi3.S | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/arch/frv/lib/__ashldi3.S b/arch/frv/lib/__ashldi3.S new file mode 100644 index 000000000000..db5b6dc37a11 --- /dev/null +++ b/arch/frv/lib/__ashldi3.S | |||
@@ -0,0 +1,40 @@ | |||
1 | /* __ashldi3.S: 64-bit arithmetic shift left | ||
2 | * | ||
3 | * Copyright (C) 2003 Red Hat, Inc. All Rights Reserved. | ||
4 | * Written by David Howells (dhowells@redhat.com) | ||
5 | * | ||
6 | * This program is free software; you can redistribute it and/or | ||
7 | * modify it under the terms of the GNU General Public License | ||
8 | * as published by the Free Software Foundation; either version | ||
9 | * 2 of the License, or (at your option) any later version. | ||
10 | */ | ||
11 | |||
12 | .text | ||
13 | .p2align 4 | ||
14 | |||
15 | ############################################################################### | ||
16 | # | ||
17 | # unsigned long long __ashldi3(unsigned long long value [GR8:GR9], unsigned by [GR10]) | ||
18 | # | ||
19 | ############################################################################### | ||
20 | .globl __ashldi3 | ||
21 | .type __ashldi3,@function | ||
22 | __ashldi3: | ||
23 | andicc.p gr10,#63,gr10,icc0 | ||
24 | setlos #32,gr5 | ||
25 | andicc.p gr10,#32,gr0,icc1 | ||
26 | beqlr icc0,#0 | ||
27 | ckeq icc1,cc4 ; cc4 is true if 0<N<32 | ||
28 | |||
29 | # deal with a shift in the range 1<=N<=31 | ||
30 | csll.p gr8,gr10,gr8 ,cc4,#1 ; MSW <<= N | ||
31 | csub gr5,gr10,gr5 ,cc4,#1 ; M = 32 - N | ||
32 | csrl.p gr9,gr5,gr4 ,cc4,#1 | ||
33 | csll gr9,gr10,gr9 ,cc4,#1 ; LSW <<= N | ||
34 | cor.p gr4,gr8,gr8 ,cc4,#1 ; MSW |= LSW >> M | ||
35 | |||
36 | # deal with a shift in the range 32<=N<=63 | ||
37 | csll gr9,gr10,gr8 ,cc4,#0 ; MSW = LSW << (N & 31 [implicit AND]) | ||
38 | cor.p gr0,gr0,gr9 ,cc4,#0 ; LSW = 0 | ||
39 | bralr | ||
40 | .size __ashldi3, .-__ashldi3 | ||