Loading...
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 | /* * flashasm.S: flash magic for LART * * Copyright (C) 1999 2000 2001 Jan-Derk bakker (J.D.Bakker@its.tudelft.nl) * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA * */ .text .globl data_to_flash .globl data_from_flash /* Subroutine that takes data in r0 and formats it so it will be in */ /* the correct order for the internal flash */ /* used for LART only */ data_to_flash: mov r1, #0x0 tst r0, #0x00000001 orrne r1, r1, #0x00001000 tst r0, #0x00000002 orrne r1, r1, #0x00004000 tst r0, #0x00000004 orrne r1, r1, #0x00000800 tst r0, #0x00000008 orrne r1, r1, #0x00000200 tst r0, #0x00000010 orrne r1, r1, #0x00000001 tst r0, #0x00000020 orrne r1, r1, #0x00000004 tst r0, #0x00000040 orrne r1, r1, #0x00000080 tst r0, #0x00000080 orrne r1, r1, #0x00000020 tst r0, #0x00000100 orrne r1, r1, #0x00002000 tst r0, #0x00000200 orrne r1, r1, #0x00008000 tst r0, #0x00000400 orrne r1, r1, #0x00000400 tst r0, #0x00000800 orrne r1, r1, #0x00000100 tst r0, #0x00001000 orrne r1, r1, #0x00000002 tst r0, #0x00002000 orrne r1, r1, #0x00000008 tst r0, #0x00004000 orrne r1, r1, #0x00000040 tst r0, #0x00008000 orrne r1, r1, #0x00000010 tst r0, #0x00010000 orrne r1, r1, #0x00100000 tst r0, #0x00020000 orrne r1, r1, #0x00400000 tst r0, #0x00040000 orrne r1, r1, #0x00080000 tst r0, #0x00080000 orrne r1, r1, #0x00020000 tst r0, #0x00100000 orrne r1, r1, #0x01000000 tst r0, #0x00200000 orrne r1, r1, #0x04000000 tst r0, #0x00400000 orrne r1, r1, #0x80000000 tst r0, #0x00800000 orrne r1, r1, #0x20000000 tst r0, #0x01000000 orrne r1, r1, #0x00200000 tst r0, #0x02000000 orrne r1, r1, #0x00800000 tst r0, #0x04000000 orrne r1, r1, #0x00040000 tst r0, #0x08000000 orrne r1, r1, #0x00010000 tst r0, #0x10000000 orrne r1, r1, #0x02000000 tst r0, #0x20000000 orrne r1, r1, #0x08000000 tst r0, #0x40000000 orrne r1, r1, #0x40000000 tst r0, #0x80000000 orrne r1, r1, #0x10000000 mov r0, r1 mov pc, lr /* Takes data received from the flash, and unshuffles it. */ data_from_flash: mov r1, #0x00 tst r0, #0x00000001 orrne r1, r1, #0x00000010 tst r0, #0x00000002 orrne r1, r1, #0x00001000 tst r0, #0x00000004 orrne r1, r1, #0x00000020 tst r0, #0x00000008 orrne r1, r1, #0x00002000 tst r0, #0x00000010 orrne r1, r1, #0x00008000 tst r0, #0x00000020 orrne r1, r1, #0x00000080 tst r0, #0x00000040 orrne r1, r1, #0x00004000 tst r0, #0x00000080 orrne r1, r1, #0x00000040 tst r0, #0x00000100 orrne r1, r1, #0x00000800 tst r0, #0x00000200 orrne r1, r1, #0x00000008 tst r0, #0x00000400 orrne r1, r1, #0x00000400 tst r0, #0x00000800 orrne r1, r1, #0x00000004 tst r0, #0x00001000 orrne r1, r1, #0x00000001 tst r0, #0x00002000 orrne r1, r1, #0x00000100 tst r0, #0x00004000 orrne r1, r1, #0x00000002 tst r0, #0x00008000 orrne r1, r1, #0x00000200 tst r0, #0x00010000 orrne r1, r1, #0x08000000 tst r0, #0x00020000 orrne r1, r1, #0x00080000 tst r0, #0x00040000 orrne r1, r1, #0x04000000 tst r0, #0x00080000 orrne r1, r1, #0x00040000 tst r0, #0x00100000 orrne r1, r1, #0x00010000 tst r0, #0x00200000 orrne r1, r1, #0x01000000 tst r0, #0x00400000 orrne r1, r1, #0x00020000 tst r0, #0x00800000 orrne r1, r1, #0x02000000 tst r0, #0x01000000 orrne r1, r1, #0x00100000 tst r0, #0x02000000 orrne r1, r1, #0x10000000 tst r0, #0x04000000 orrne r1, r1, #0x00200000 tst r0, #0x08000000 orrne r1, r1, #0x20000000 tst r0, #0x10000000 orrne r1, r1, #0x80000000 tst r0, #0x20000000 orrne r1, r1, #0x00800000 tst r0, #0x40000000 orrne r1, r1, #0x40000000 tst r0, #0x80000000 orrne r1, r1, #0x00400000 mov r0, r1 mov pc, lr |