projects / people / ms / u-boot.git / blame
| Commit | Line | Data |
|---|---|---|
| eeb84df6 PE |
1 | /* Copyright (C) 1994, 1995, 1997, 1998, 1999, 2000, 2001, 2002, 2003, |
| 2 | 2004, 2005, 2006 | |
| 3 | Free Software Foundation, Inc. | |
| 4 | ||
| 1a459660 WD |
5 | * SPDX-License-Identifier: GPL-2.0+ |
| 6 | */ | |
| eeb84df6 PE |
7 | |
| 8 | !! libgcc routines for the Renesas / SuperH SH CPUs. | |
| 9 | !! Contributed by Steve Chamberlain. | |
| 10 | !! sac@cygnus.com | |
| 11 | ||
| 12 | !! ashiftrt_r4_x, ___ashrsi3, ___ashlsi3, ___lshrsi3 routines | |
| 13 | !! recoded in assembly by Toshiyasu Morita | |
| 14 | !! tm@netcom.com | |
| 15 | ||
| 16 | /* SH2 optimizations for ___ashrsi3, ___ashlsi3, ___lshrsi3 and | |
| 17 | ELF local label prefixes by J"orn Rennecke | |
| 18 | amylaar@cygnus.com */ | |
| 19 | ||
| 20 | ! | |
| 21 | ! GLOBAL(ashlsi3) | |
| 22 | ! | |
| 23 | ! Entry: | |
| 24 | ! | |
| 25 | ! r4: Value to shift | |
| 26 | ! r5: Shifts | |
| 27 | ! | |
| 28 | ! Exit: | |
| 29 | ! | |
| 30 | ! r0: Result | |
| 31 | ! | |
| 32 | ! Destroys: | |
| 33 | ! | |
| 34 | ! (none) | |
| 35 | ! | |
| 36 | .global __ashlsi3 | |
| 37 | .align 2 | |
| 38 | __ashlsi3: | |
| 39 | mov #31,r0 | |
| 40 | and r0,r5 | |
| 41 | mova __ashlsi3_table,r0 | |
| 42 | mov.b @(r0,r5),r5 | |
| 43 | #ifdef __sh1__ | |
| 44 | add r5,r0 | |
| 45 | jmp @r0 | |
| 46 | #else | |
| 47 | braf r5 | |
| 48 | #endif | |
| 49 | mov r4,r0 | |
| 50 | ||
| 51 | .align 2 | |
| 52 | __ashlsi3_table: | |
| 53 | .byte __ashlsi3_0-__ashlsi3_table | |
| 54 | .byte __ashlsi3_1-__ashlsi3_table | |
| 55 | .byte __ashlsi3_2-__ashlsi3_table | |
| 56 | .byte __ashlsi3_3-__ashlsi3_table | |
| 57 | .byte __ashlsi3_4-__ashlsi3_table | |
| 58 | .byte __ashlsi3_5-__ashlsi3_table | |
| 59 | .byte __ashlsi3_6-__ashlsi3_table | |
| 60 | .byte __ashlsi3_7-__ashlsi3_table | |
| 61 | .byte __ashlsi3_8-__ashlsi3_table | |
| 62 | .byte __ashlsi3_9-__ashlsi3_table | |
| 63 | .byte __ashlsi3_10-__ashlsi3_table | |
| 64 | .byte __ashlsi3_11-__ashlsi3_table | |
| 65 | .byte __ashlsi3_12-__ashlsi3_table | |
| 66 | .byte __ashlsi3_13-__ashlsi3_table | |
| 67 | .byte __ashlsi3_14-__ashlsi3_table | |
| 68 | .byte __ashlsi3_15-__ashlsi3_table | |
| 69 | .byte __ashlsi3_16-__ashlsi3_table | |
| 70 | .byte __ashlsi3_17-__ashlsi3_table | |
| 71 | .byte __ashlsi3_18-__ashlsi3_table | |
| 72 | .byte __ashlsi3_19-__ashlsi3_table | |
| 73 | .byte __ashlsi3_20-__ashlsi3_table | |
| 74 | .byte __ashlsi3_21-__ashlsi3_table | |
| 75 | .byte __ashlsi3_22-__ashlsi3_table | |
| 76 | .byte __ashlsi3_23-__ashlsi3_table | |
| 77 | .byte __ashlsi3_24-__ashlsi3_table | |
| 78 | .byte __ashlsi3_25-__ashlsi3_table | |
| 79 | .byte __ashlsi3_26-__ashlsi3_table | |
| 80 | .byte __ashlsi3_27-__ashlsi3_table | |
| 81 | .byte __ashlsi3_28-__ashlsi3_table | |
| 82 | .byte __ashlsi3_29-__ashlsi3_table | |
| 83 | .byte __ashlsi3_30-__ashlsi3_table | |
| 84 | .byte __ashlsi3_31-__ashlsi3_table | |
| 85 | ||
| 86 | __ashlsi3_6: | |
| 87 | shll2 r0 | |
| 88 | __ashlsi3_4: | |
| 89 | shll2 r0 | |
| 90 | __ashlsi3_2: | |
| 91 | rts | |
| 92 | shll2 r0 | |
| 93 | ||
| 94 | __ashlsi3_7: | |
| 95 | shll2 r0 | |
| 96 | __ashlsi3_5: | |
| 97 | shll2 r0 | |
| 98 | __ashlsi3_3: | |
| 99 | shll2 r0 | |
| 100 | __ashlsi3_1: | |
| 101 | rts | |
| 102 | shll r0 | |
| 103 | ||
| 104 | __ashlsi3_14: | |
| 105 | shll2 r0 | |
| 106 | __ashlsi3_12: | |
| 107 | shll2 r0 | |
| 108 | __ashlsi3_10: | |
| 109 | shll2 r0 | |
| 110 | __ashlsi3_8: | |
| 111 | rts | |
| 112 | shll8 r0 | |
| 113 | ||
| 114 | __ashlsi3_15: | |
| 115 | shll2 r0 | |
| 116 | __ashlsi3_13: | |
| 117 | shll2 r0 | |
| 118 | __ashlsi3_11: | |
| 119 | shll2 r0 | |
| 120 | __ashlsi3_9: | |
| 121 | shll8 r0 | |
| 122 | rts | |
| 123 | shll r0 | |
| 124 | ||
| 125 | __ashlsi3_22: | |
| 126 | shll2 r0 | |
| 127 | __ashlsi3_20: | |
| 128 | shll2 r0 | |
| 129 | __ashlsi3_18: | |
| 130 | shll2 r0 | |
| 131 | __ashlsi3_16: | |
| 132 | rts | |
| 133 | shll16 r0 | |
| 134 | ||
| 135 | __ashlsi3_23: | |
| 136 | shll2 r0 | |
| 137 | __ashlsi3_21: | |
| 138 | shll2 r0 | |
| 139 | __ashlsi3_19: | |
| 140 | shll2 r0 | |
| 141 | __ashlsi3_17: | |
| 142 | shll16 r0 | |
| 143 | rts | |
| 144 | shll r0 | |
| 145 | ||
| 146 | __ashlsi3_30: | |
| 147 | shll2 r0 | |
| 148 | __ashlsi3_28: | |
| 149 | shll2 r0 | |
| 150 | __ashlsi3_26: | |
| 151 | shll2 r0 | |
| 152 | __ashlsi3_24: | |
| 153 | shll16 r0 | |
| 154 | rts | |
| 155 | shll8 r0 | |
| 156 | ||
| 157 | __ashlsi3_31: | |
| 158 | shll2 r0 | |
| 159 | __ashlsi3_29: | |
| 160 | shll2 r0 | |
| 161 | __ashlsi3_27: | |
| 162 | shll2 r0 | |
| 163 | __ashlsi3_25: | |
| 164 | shll16 r0 | |
| 165 | shll8 r0 | |
| 166 | rts | |
| 167 | shll r0 | |
| 168 | ||
| 169 | __ashlsi3_0: | |
| 170 | rts | |
| 171 | nop |