Mercurial > hg > CbC > CbC_gcc

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

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