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comparison libgcc/config/lm32/_lshrsi3.S @ 55:77e2b8dfacca gcc-4.4.5

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update it from 4.4.3 to 4.5.0
author ryoma <e075725@ie.u-ryukyu.ac.jp>
date Fri, 12 Feb 2010 23:39:51 +0900
parents
children 04ced10e8804
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52:c156f1bd5cd9 55:77e2b8dfacca
1 # _lshrsi3.S for Lattice Mico32
2 # Contributed by Jon Beniston <jon@beniston.com> and Richard Henderson.
3 #
4 # Copyright (C) 2009 Free Software Foundation, Inc.
5 #
6 # This file is free software; you can redistribute it and/or modify it
7 # under the terms of the GNU General Public License as published by the
8 # Free Software Foundation; either version 3, or (at your option) any
9 # later version.
10 #
11 # This file is distributed in the hope that it will be useful, but
12 # WITHOUT ANY WARRANTY; without even the implied warranty of
13 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 # General Public License for more details.
15 #
16 # Under Section 7 of GPL version 3, you are granted additional
17 # permissions described in the GCC Runtime Library Exception, version
18 # 3.1, as published by the Free Software Foundation.
19 #
20 # You should have received a copy of the GNU General Public License and
21 # a copy of the GCC Runtime Library Exception along with this program;
22 # see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
23 # <http://www.gnu.org/licenses/>.
24 #
25
26 /* Logical right shift. */
27
28 .global __lshrsi3
29 .type __lshrsi3,@function
30
31 __lshrsi3:
32 /* Only use 5 LSBs, as that's all the h/w shifter uses. */
33 andi r2, r2, 0x1f
34 /* Get address of offset into unrolled shift loop to jump to. */
35 #ifdef __PIC__
36 lw r3, (gp+got(__lshrsi3_0))
37 #else
38 mvhi r3, hi(__lshrsi3_0)
39 ori r3, r3, lo(__lshrsi3_0)
40 #endif
41 add r2, r2, r2
42 add r2, r2, r2
43 sub r3, r3, r2
44 b r3
45
46 __lshrsi3_31:
47 srui r1, r1, 1
48 __lshrsi3_30:
49 srui r1, r1, 1
50 __lshrsi3_29:
51 srui r1, r1, 1
52 __lshrsi3_28:
53 srui r1, r1, 1
54 __lshrsi3_27:
55 srui r1, r1, 1
56 __lshrsi3_26:
57 srui r1, r1, 1
58 __lshrsi3_25:
59 srui r1, r1, 1
60 __lshrsi3_24:
61 srui r1, r1, 1
62 __lshrsi3_23:
63 srui r1, r1, 1
64 __lshrsi3_22:
65 srui r1, r1, 1
66 __lshrsi3_21:
67 srui r1, r1, 1
68 __lshrsi3_20:
69 srui r1, r1, 1
70 __lshrsi3_19:
71 srui r1, r1, 1
72 __lshrsi3_18:
73 srui r1, r1, 1
74 __lshrsi3_17:
75 srui r1, r1, 1
76 __lshrsi3_16:
77 srui r1, r1, 1
78 __lshrsi3_15:
79 srui r1, r1, 1
80 __lshrsi3_14:
81 srui r1, r1, 1
82 __lshrsi3_13:
83 srui r1, r1, 1
84 __lshrsi3_12:
85 srui r1, r1, 1
86 __lshrsi3_11:
87 srui r1, r1, 1
88 __lshrsi3_10:
89 srui r1, r1, 1
90 __lshrsi3_9:
91 srui r1, r1, 1
92 __lshrsi3_8:
93 srui r1, r1, 1
94 __lshrsi3_7:
95 srui r1, r1, 1
96 __lshrsi3_6:
97 srui r1, r1, 1
98 __lshrsi3_5:
99 srui r1, r1, 1
100 __lshrsi3_4:
101 srui r1, r1, 1
102 __lshrsi3_3:
103 srui r1, r1, 1
104 __lshrsi3_2:
105 srui r1, r1, 1
106 __lshrsi3_1:
107 srui r1, r1, 1
108 __lshrsi3_0:
109 ret