projects / u-boot.git / blame
| Commit | Line | Data |
|---|---|---|
| 83d290c5 | 1 | /* SPDX-License-Identifier: GPL-2.0+ */ |
| eeb84df6 PE |
2 | /* Copyright (C) 1994, 1995, 1997, 1998, 1999, 2000, 2001, 2002, 2003, |
| 3 | 2004, 2005, 2006 | |
| 4 | Free Software Foundation, Inc. | |
| 1a459660 | 5 | */ |
| eeb84df6 PE |
6 | |
| 7 | !! libgcc routines for the Renesas / SuperH SH CPUs. | |
| 8 | !! Contributed by Steve Chamberlain. | |
| 9 | !! [email protected] | |
| 10 | ||
| 11 | !! ashiftrt_r4_x, ___ashrsi3, ___ashlsi3, ___lshrsi3 routines | |
| 12 | !! recoded in assembly by Toshiyasu Morita | |
| 13 | !! [email protected] | |
| 14 | ||
| 15 | /* SH2 optimizations for ___ashrsi3, ___ashlsi3, ___lshrsi3 and | |
| 16 | ELF local label prefixes by J"orn Rennecke | |
| 17 | [email protected] */ | |
| 18 | ||
| 19 | ! | |
| 20 | ! __lshrsi3) | |
| 21 | ! | |
| 22 | ! Entry: | |
| 23 | ! | |
| 24 | ! r4: Value to shift | |
| 25 | ! r5: Shifts | |
| 26 | ! | |
| 27 | ! Exit: | |
| 28 | ! | |
| 29 | ! r0: Result | |
| 30 | ! | |
| 31 | ! Destroys: | |
| 32 | ! | |
| 33 | ! (none) | |
| 34 | ! | |
| 35 | .global __lshrsi3 | |
| 36 | .align 2 | |
| 37 | __lshrsi3: | |
| 38 | mov #31,r0 | |
| 39 | and r0,r5 | |
| 40 | mova __lshrsi3_table,r0 | |
| 41 | mov.b @(r0,r5),r5 | |
| 42 | #ifdef __sh1__ | |
| 43 | add r5,r0 | |
| 44 | jmp @r0 | |
| 45 | #else | |
| 46 | braf r5 | |
| 47 | #endif | |
| 48 | mov r4,r0 | |
| 49 | ||
| 50 | .align 2 | |
| 51 | __lshrsi3_table: | |
| 52 | .byte __lshrsi3_0-__lshrsi3_table | |
| 53 | .byte __lshrsi3_1-__lshrsi3_table | |
| 54 | .byte __lshrsi3_2-__lshrsi3_table | |
| 55 | .byte __lshrsi3_3-__lshrsi3_table | |
| 56 | .byte __lshrsi3_4-__lshrsi3_table | |
| 57 | .byte __lshrsi3_5-__lshrsi3_table | |
| 58 | .byte __lshrsi3_6-__lshrsi3_table | |
| 59 | .byte __lshrsi3_7-__lshrsi3_table | |
| 60 | .byte __lshrsi3_8-__lshrsi3_table | |
| 61 | .byte __lshrsi3_9-__lshrsi3_table | |
| 62 | .byte __lshrsi3_10-__lshrsi3_table | |
| 63 | .byte __lshrsi3_11-__lshrsi3_table | |
| 64 | .byte __lshrsi3_12-__lshrsi3_table | |
| 65 | .byte __lshrsi3_13-__lshrsi3_table | |
| 66 | .byte __lshrsi3_14-__lshrsi3_table | |
| 67 | .byte __lshrsi3_15-__lshrsi3_table | |
| 68 | .byte __lshrsi3_16-__lshrsi3_table | |
| 69 | .byte __lshrsi3_17-__lshrsi3_table | |
| 70 | .byte __lshrsi3_18-__lshrsi3_table | |
| 71 | .byte __lshrsi3_19-__lshrsi3_table | |
| 72 | .byte __lshrsi3_20-__lshrsi3_table | |
| 73 | .byte __lshrsi3_21-__lshrsi3_table | |
| 74 | .byte __lshrsi3_22-__lshrsi3_table | |
| 75 | .byte __lshrsi3_23-__lshrsi3_table | |
| 76 | .byte __lshrsi3_24-__lshrsi3_table | |
| 77 | .byte __lshrsi3_25-__lshrsi3_table | |
| 78 | .byte __lshrsi3_26-__lshrsi3_table | |
| 79 | .byte __lshrsi3_27-__lshrsi3_table | |
| 80 | .byte __lshrsi3_28-__lshrsi3_table | |
| 81 | .byte __lshrsi3_29-__lshrsi3_table | |
| 82 | .byte __lshrsi3_30-__lshrsi3_table | |
| 83 | .byte __lshrsi3_31-__lshrsi3_table | |
| 84 | ||
| 85 | __lshrsi3_6: | |
| 86 | shlr2 r0 | |
| 87 | __lshrsi3_4: | |
| 88 | shlr2 r0 | |
| 89 | __lshrsi3_2: | |
| 90 | rts | |
| 91 | shlr2 r0 | |
| 92 | ||
| 93 | __lshrsi3_7: | |
| 94 | shlr2 r0 | |
| 95 | __lshrsi3_5: | |
| 96 | shlr2 r0 | |
| 97 | __lshrsi3_3: | |
| 98 | shlr2 r0 | |
| 99 | __lshrsi3_1: | |
| 100 | rts | |
| 101 | shlr r0 | |
| 102 | ||
| 103 | __lshrsi3_14: | |
| 104 | shlr2 r0 | |
| 105 | __lshrsi3_12: | |
| 106 | shlr2 r0 | |
| 107 | __lshrsi3_10: | |
| 108 | shlr2 r0 | |
| 109 | __lshrsi3_8: | |
| 110 | rts | |
| 111 | shlr8 r0 | |
| 112 | ||
| 113 | __lshrsi3_15: | |
| 114 | shlr2 r0 | |
| 115 | __lshrsi3_13: | |
| 116 | shlr2 r0 | |
| 117 | __lshrsi3_11: | |
| 118 | shlr2 r0 | |
| 119 | __lshrsi3_9: | |
| 120 | shlr8 r0 | |
| 121 | rts | |
| 122 | shlr r0 | |
| 123 | ||
| 124 | __lshrsi3_22: | |
| 125 | shlr2 r0 | |
| 126 | __lshrsi3_20: | |
| 127 | shlr2 r0 | |
| 128 | __lshrsi3_18: | |
| 129 | shlr2 r0 | |
| 130 | __lshrsi3_16: | |
| 131 | rts | |
| 132 | shlr16 r0 | |
| 133 | ||
| 134 | __lshrsi3_23: | |
| 135 | shlr2 r0 | |
| 136 | __lshrsi3_21: | |
| 137 | shlr2 r0 | |
| 138 | __lshrsi3_19: | |
| 139 | shlr2 r0 | |
| 140 | __lshrsi3_17: | |
| 141 | shlr16 r0 | |
| 142 | rts | |
| 143 | shlr r0 | |
| 144 | ||
| 145 | __lshrsi3_30: | |
| 146 | shlr2 r0 | |
| 147 | __lshrsi3_28: | |
| 148 | shlr2 r0 | |
| 149 | __lshrsi3_26: | |
| 150 | shlr2 r0 | |
| 151 | __lshrsi3_24: | |
| 152 | shlr16 r0 | |
| 153 | rts | |
| 154 | shlr8 r0 | |
| 155 | ||
| 156 | __lshrsi3_31: | |
| 157 | shlr2 r0 | |
| 158 | __lshrsi3_29: | |
| 159 | shlr2 r0 | |
| 160 | __lshrsi3_27: | |
| 161 | shlr2 r0 | |
| 162 | __lshrsi3_25: | |
| 163 | shlr16 r0 | |
| 164 | shlr8 r0 | |
| 165 | rts | |
| 166 | shlr r0 | |
| 167 | ||
| 168 | __lshrsi3_0: | |
| 169 | rts | |
| 170 | nop |