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author | Jay Threeth | 2011-04-04 11:48:26 -0700 |
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committer | Jay Threeth | 2011-04-04 11:48:26 -0700 |
commit | 3c9cc506f741b980565ff5b3b001cd8b6ee36b12 (patch) | |
tree | cb862c57b3d5f74177cde3bd962a53fc377166f6 /linden/indra/libgcrypt/libgcrypt-1.2.2/mpi/power/mpih-sub1.S | |
parent | build fixes, might build on linux now (diff) | |
download | meta-impy-3c9cc506f741b980565ff5b3b001cd8b6ee36b12.zip meta-impy-3c9cc506f741b980565ff5b3b001cd8b6ee36b12.tar.gz meta-impy-3c9cc506f741b980565ff5b3b001cd8b6ee36b12.tar.bz2 meta-impy-3c9cc506f741b980565ff5b3b001cd8b6ee36b12.tar.xz |
add source to libraries, and cruft for building under windows
Diffstat (limited to 'linden/indra/libgcrypt/libgcrypt-1.2.2/mpi/power/mpih-sub1.S')
-rwxr-xr-x | linden/indra/libgcrypt/libgcrypt-1.2.2/mpi/power/mpih-sub1.S | 88 |
1 files changed, 88 insertions, 0 deletions
diff --git a/linden/indra/libgcrypt/libgcrypt-1.2.2/mpi/power/mpih-sub1.S b/linden/indra/libgcrypt/libgcrypt-1.2.2/mpi/power/mpih-sub1.S new file mode 100755 index 0000000..5e08ac3 --- /dev/null +++ b/linden/indra/libgcrypt/libgcrypt-1.2.2/mpi/power/mpih-sub1.S | |||
@@ -0,0 +1,88 @@ | |||
1 | /* IBM POWER sub_n -- Subtract two limb vectors of equal, non-zero length. | ||
2 | * | ||
3 | * Copyright (C) 1992, 1994, 1995, 1996, 1999, | ||
4 | * 2002 Free Software Foundation, Inc. | ||
5 | * | ||
6 | * This file is part of Libgcrypt. | ||
7 | * | ||
8 | * Libgcrypt is free software; you can redistribute it and/or modify | ||
9 | * it under the terms of the GNU Lesser General Public License as | ||
10 | * published by the Free Software Foundation; either version 2.1 of | ||
11 | * the License, or (at your option) any later version. | ||
12 | * | ||
13 | * Libgcrypt is distributed in the hope that it will be useful, | ||
14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
16 | * GNU Lesser General Public License for more details. | ||
17 | * | ||
18 | * You should have received a copy of the GNU Lesser General Public | ||
19 | * License along with this program; if not, write to the Free Software | ||
20 | * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA | ||
21 | */ | ||
22 | |||
23 | #include "sysdep.h" | ||
24 | #include "asm-syntax.h" | ||
25 | |||
26 | /* | ||
27 | # INPUT PARAMETERS | ||
28 | # res_ptr r3 | ||
29 | # s1_ptr r4 | ||
30 | # s2_ptr r5 | ||
31 | # size r6 | ||
32 | */ | ||
33 | |||
34 | .toc | ||
35 | .extern _gcry_mpih_sub_n[DS] | ||
36 | .extern ._gcry_mpih_sub_n | ||
37 | .csect [PR] | ||
38 | .align 2 | ||
39 | .globl _gcry_mpih_sub_n | ||
40 | .globl ._gcry_mpih_sub_n | ||
41 | .csect _gcry_mpih_sub_n[DS] | ||
42 | _gcry_mpih_sub_n: | ||
43 | .long ._gcry_mpih_sub_n, TOC[tc0], 0 | ||
44 | .csect [PR] | ||
45 | ._gcry_mpih_sub_n: | ||
46 | andil. 10,6,1 # odd or even number of limbs? | ||
47 | l 8,0(4) # load least significant s1 limb | ||
48 | l 0,0(5) # load least significant s2 limb | ||
49 | cal 3,-4(3) # offset res_ptr, it's updated before it's used | ||
50 | sri 10,6,1 # count for unrolled loop | ||
51 | sf 7,0,8 # subtract least significant limbs, set cy | ||
52 | mtctr 10 # copy count into CTR | ||
53 | beq 0,Leven # branch if even # of limbs (# of limbs >= 2) | ||
54 | |||
55 | # We have an odd # of limbs. Add the first limbs separately. | ||
56 | cmpi 1,10,0 # is count for unrolled loop zero? | ||
57 | bne 1,L1 # branch if not | ||
58 | st 7,4(3) | ||
59 | sfe 3,0,0 # load !cy into ... | ||
60 | sfi 3,3,0 # ... return value register | ||
61 | br # return | ||
62 | |||
63 | # We added least significant limbs. Now reload the next limbs to enter loop. | ||
64 | L1: lu 8,4(4) # load s1 limb and update s1_ptr | ||
65 | lu 0,4(5) # load s2 limb and update s2_ptr | ||
66 | stu 7,4(3) | ||
67 | sfe 7,0,8 # subtract limbs, set cy | ||
68 | Leven: lu 9,4(4) # load s1 limb and update s1_ptr | ||
69 | lu 10,4(5) # load s2 limb and update s2_ptr | ||
70 | bdz Lend # If done, skip loop | ||
71 | |||
72 | Loop: lu 8,4(4) # load s1 limb and update s1_ptr | ||
73 | lu 0,4(5) # load s2 limb and update s2_ptr | ||
74 | sfe 11,10,9 # subtract previous limbs with cy, set cy | ||
75 | stu 7,4(3) # | ||
76 | lu 9,4(4) # load s1 limb and update s1_ptr | ||
77 | lu 10,4(5) # load s2 limb and update s2_ptr | ||
78 | sfe 7,0,8 # subtract previous limbs with cy, set cy | ||
79 | stu 11,4(3) # | ||
80 | bdn Loop # decrement CTR and loop back | ||
81 | |||
82 | Lend: sfe 11,10,9 # subtract limbs with cy, set cy | ||
83 | st 7,4(3) # | ||
84 | st 11,8(3) # | ||
85 | sfe 3,0,0 # load !cy into ... | ||
86 | sfi 3,3,0 # ... return value register | ||
87 | br | ||
88 | |||