| 1 | /* SPDX-License-Identifier: GPL-2.0+ WITH GCC-exception-2.0 |
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| 2 | |
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| 3 | Copyright (C) 1994, 1995, 1997, 1998, 1999, 2000, 2001, 2002, 2003, |
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| 4 | 2004, 2005, 2006 |
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| 5 | Free Software Foundation, Inc. |
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| 6 | */ |
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| 7 | |
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| 8 | !! libgcc routines for the Renesas / SuperH SH CPUs. |
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| 9 | !! Contributed by Steve Chamberlain. |
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| 10 | !! sac@cygnus.com |
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| 11 | |
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| 12 | !! ashiftrt_r4_x, ___ashrsi3, ___ashlsi3, ___lshrsi3 routines |
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| 13 | !! recoded in assembly by Toshiyasu Morita |
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| 14 | !! tm@netcom.com |
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| 15 | |
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| 16 | /* SH2 optimizations for ___ashrsi3, ___ashlsi3, ___lshrsi3 and |
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| 17 | ELF local label prefixes by J"orn Rennecke |
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| 18 | amylaar@cygnus.com */ |
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| 19 | |
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| 20 | ! |
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| 21 | ! __ashrsi3 |
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| 22 | ! |
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| 23 | ! Entry: |
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| 24 | ! |
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| 25 | ! r4: Value to shift |
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| 26 | ! r5: Shifts |
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| 27 | ! |
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| 28 | ! Exit: |
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| 29 | ! |
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| 30 | ! r0: Result |
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| 31 | ! |
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| 32 | ! Destroys: |
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| 33 | ! |
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| 34 | ! (none) |
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| 35 | ! |
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| 36 | ! __ashrsi3_r0 |
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| 37 | ! |
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| 38 | ! Entry: |
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| 39 | ! |
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| 40 | ! r4: Value to shift |
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| 41 | ! r0: Shifts |
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| 42 | ! |
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| 43 | ! Exit: |
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| 44 | ! |
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| 45 | ! r0: Result |
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| 46 | ! |
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| 47 | ! Destroys: |
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| 48 | ! |
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| 49 | ! (none) |
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| 50 | |
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| 51 | .global __ashrsi3 |
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| 52 | .global __ashrsi3_r0 |
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| 53 | |
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| 54 | .align 2 |
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| 55 | __ashrsi3: |
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| 56 | mov r5,r0 |
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| 57 | .align 2 |
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| 58 | __ashrsi3_r0: |
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| 59 | and #31,r0 |
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| 60 | mov.l r4,@-r15 |
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| 61 | mov r0,r4 |
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| 62 | mova ashrsi3_table,r0 |
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| 63 | mov.b @(r0,r4),r4 |
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| 64 | add r4,r0 |
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| 65 | jmp @r0 |
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| 66 | mov.l @r15+,r0 |
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| 67 | |
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| 68 | .align 2 |
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| 69 | ashrsi3_table: |
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| 70 | .byte ashrsi3_0-ashrsi3_table |
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| 71 | .byte ashrsi3_1-ashrsi3_table |
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| 72 | .byte ashrsi3_2-ashrsi3_table |
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| 73 | .byte ashrsi3_3-ashrsi3_table |
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| 74 | .byte ashrsi3_4-ashrsi3_table |
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| 75 | .byte ashrsi3_5-ashrsi3_table |
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| 76 | .byte ashrsi3_6-ashrsi3_table |
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| 77 | .byte ashrsi3_7-ashrsi3_table |
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| 78 | .byte ashrsi3_8-ashrsi3_table |
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| 79 | .byte ashrsi3_9-ashrsi3_table |
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| 80 | .byte ashrsi3_10-ashrsi3_table |
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| 81 | .byte ashrsi3_11-ashrsi3_table |
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| 82 | .byte ashrsi3_12-ashrsi3_table |
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| 83 | .byte ashrsi3_13-ashrsi3_table |
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| 84 | .byte ashrsi3_14-ashrsi3_table |
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| 85 | .byte ashrsi3_15-ashrsi3_table |
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| 86 | .byte ashrsi3_16-ashrsi3_table |
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| 87 | .byte ashrsi3_17-ashrsi3_table |
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| 88 | .byte ashrsi3_18-ashrsi3_table |
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| 89 | .byte ashrsi3_19-ashrsi3_table |
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| 90 | .byte ashrsi3_20-ashrsi3_table |
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| 91 | .byte ashrsi3_21-ashrsi3_table |
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| 92 | .byte ashrsi3_22-ashrsi3_table |
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| 93 | .byte ashrsi3_23-ashrsi3_table |
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| 94 | .byte ashrsi3_24-ashrsi3_table |
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| 95 | .byte ashrsi3_25-ashrsi3_table |
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| 96 | .byte ashrsi3_26-ashrsi3_table |
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| 97 | .byte ashrsi3_27-ashrsi3_table |
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| 98 | .byte ashrsi3_28-ashrsi3_table |
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| 99 | .byte ashrsi3_29-ashrsi3_table |
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| 100 | .byte ashrsi3_30-ashrsi3_table |
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| 101 | .byte ashrsi3_31-ashrsi3_table |
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| 102 | |
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| 103 | ashrsi3_31: |
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| 104 | rotcl r0 |
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| 105 | rts |
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| 106 | subc r0,r0 |
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| 107 | |
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| 108 | ashrsi3_30: |
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| 109 | shar r0 |
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| 110 | ashrsi3_29: |
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| 111 | shar r0 |
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| 112 | ashrsi3_28: |
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| 113 | shar r0 |
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| 114 | ashrsi3_27: |
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| 115 | shar r0 |
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| 116 | ashrsi3_26: |
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| 117 | shar r0 |
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| 118 | ashrsi3_25: |
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| 119 | shar r0 |
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| 120 | ashrsi3_24: |
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| 121 | shlr16 r0 |
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| 122 | shlr8 r0 |
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| 123 | rts |
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| 124 | exts.b r0,r0 |
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| 125 | |
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| 126 | ashrsi3_23: |
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| 127 | shar r0 |
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| 128 | ashrsi3_22: |
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| 129 | shar r0 |
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| 130 | ashrsi3_21: |
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| 131 | shar r0 |
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| 132 | ashrsi3_20: |
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| 133 | shar r0 |
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| 134 | ashrsi3_19: |
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| 135 | shar r0 |
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| 136 | ashrsi3_18: |
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| 137 | shar r0 |
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| 138 | ashrsi3_17: |
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| 139 | shar r0 |
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| 140 | ashrsi3_16: |
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| 141 | shlr16 r0 |
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| 142 | rts |
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| 143 | exts.w r0,r0 |
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| 144 | |
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| 145 | ashrsi3_15: |
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| 146 | shar r0 |
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| 147 | ashrsi3_14: |
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| 148 | shar r0 |
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| 149 | ashrsi3_13: |
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| 150 | shar r0 |
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| 151 | ashrsi3_12: |
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| 152 | shar r0 |
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| 153 | ashrsi3_11: |
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| 154 | shar r0 |
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| 155 | ashrsi3_10: |
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| 156 | shar r0 |
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| 157 | ashrsi3_9: |
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| 158 | shar r0 |
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| 159 | ashrsi3_8: |
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| 160 | shar r0 |
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| 161 | ashrsi3_7: |
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| 162 | shar r0 |
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| 163 | ashrsi3_6: |
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| 164 | shar r0 |
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| 165 | ashrsi3_5: |
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| 166 | shar r0 |
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| 167 | ashrsi3_4: |
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| 168 | shar r0 |
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| 169 | ashrsi3_3: |
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| 170 | shar r0 |
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| 171 | ashrsi3_2: |
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| 172 | shar r0 |
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| 173 | ashrsi3_1: |
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| 174 | rts |
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| 175 | shar r0 |
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| 176 | |
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| 177 | ashrsi3_0: |
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| 178 | rts |
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| 179 | nop |
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| 180 | |
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