| 1 | ;/* mbed Microcontroller Library - InterruptIn |
| 2 | ; * Copyright (c) 2006-2009 ARM Limited. All rights reserved. |
| 3 | ; */ |
| 4 | |
| 5 | #line 1 "vector_functions.s" |
| 6 | ; |
| 7 | ; |
| 8 | ; |
| 9 | |
| 10 | #line 1 "vector_defns.h" |
| 11 | |
| 12 | |
| 13 | |
| 14 | |
| 15 | |
| 16 | |
| 17 | |
| 18 | |
| 19 | |
| 20 | #line 21 "vector_defns.h" |
| 21 | |
| 22 | |
| 23 | |
| 24 | |
| 25 | |
| 26 | |
| 27 | |
| 28 | |
| 29 | |
| 30 | |
| 31 | |
| 32 | |
| 33 | |
| 34 | |
| 35 | |
| 36 | |
| 37 | |
| 38 | |
| 39 | #line 47 "vector_defns.h" |
| 40 | |
| 41 | |
| 42 | #line 58 "vector_defns.h" |
| 43 | |
| 44 | |
| 45 | |
| 46 | |
| 47 | |
| 48 | |
| 49 | |
| 50 | |
| 51 | |
| 52 | |
| 53 | |
| 54 | |
| 55 | |
| 56 | |
| 57 | |
| 58 | |
| 59 | |
| 60 | |
| 61 | #line 6 "vector_functions.s" |
| 62 | |
| 63 | |
| 64 | AREA VECFUNCS, CODE, READONLY |
| 65 | ARM |
| 66 | PRESERVE8 |
| 67 | |
| 68 | |
| 69 | |
| 70 | |
| 71 | |
| 72 | EXPORT __mbed_fiq [WEAK] |
| 73 | EXPORT __mbed_undef [WEAK] |
| 74 | EXPORT __mbed_prefetch_abort [WEAK] |
| 75 | EXPORT __mbed_data_abort [WEAK] |
| 76 | EXPORT __mbed_irq [WEAK] |
| 77 | EXPORT __mbed_swi [WEAK] |
| 78 | EXPORT __mbed_dcc_irq [WEAK] |
| 79 | EXPORT __mbed_reset [WEAK] |
| 80 | IMPORT __mbed_init_realmonitor |
| 81 | |
| 82 | ; |
| 83 | ; |
| 84 | __mbed_fiq |
| 85 | B __mbed_fiq |
| 86 | |
| 87 | ; |
| 88 | ; |
| 89 | __mbed_undef |
| 90 | LDR PC, =0x7fffffa0 |
| 91 | |
| 92 | ; |
| 93 | ; |
| 94 | __mbed_prefetch_abort |
| 95 | LDR PC, =0x7fffffb0 |
| 96 | |
| 97 | ; |
| 98 | ; |
| 99 | __mbed_data_abort |
| 100 | LDR PC, =0x7fffffc0 |
| 101 | |
| 102 | ; |
| 103 | ; |
| 104 | ; |
| 105 | ; |
| 106 | ; |
| 107 | ; |
| 108 | ; |
| 109 | ; |
| 110 | ; |
| 111 | __mbed_irq |
| 112 | ; |
| 113 | MSR CPSR_c, #0x1F:OR:0x80:OR:0x40 |
| 114 | |
| 115 | ; |
| 116 | STMDB sp!, {r0-r3,r12,lr} |
| 117 | |
| 118 | ; |
| 119 | MOV r0, #0xFFFFFF00 |
| 120 | LDR r0, [r0] |
| 121 | |
| 122 | ; |
| 123 | MOV lr, pc |
| 124 | BX r0 |
| 125 | |
| 126 | ; |
| 127 | MOV r0, #0xFFFFFF00 |
| 128 | STR r0, [r0] ; |
| 129 | |
| 130 | ; |
| 131 | LDMFD sp!,{r0-r3,r12,lr} |
| 132 | |
| 133 | ; |
| 134 | MSR CPSR_c, #0x12:OR:0x80:OR:0x40 |
| 135 | |
| 136 | ; |
| 137 | SUBS pc, lr, #4 |
| 138 | |
| 139 | ; |
| 140 | ; |
| 141 | ; |
| 142 | ; |
| 143 | __mbed_swi |
| 144 | ; |
| 145 | ; |
| 146 | STMFD sp!, {a4, r4, ip, lr} |
| 147 | |
| 148 | ; |
| 149 | LDR r4, =0x40000040 |
| 150 | |
| 151 | ; |
| 152 | ; |
| 153 | LDR a4, =0x00940000 |
| 154 | LDR PC, =0x7ffff820 |
| 155 | |
| 156 | ; |
| 157 | ; |
| 158 | ; |
| 159 | ; |
| 160 | __mbed_dcc_irq |
| 161 | |
| 162 | ; |
| 163 | |
| 164 | ; |
| 165 | LDMFD sp!,{r0-r3,r12,lr} |
| 166 | |
| 167 | ; |
| 168 | MSR CPSR_c, #0x12:OR:0x80:OR:0x40 |
| 169 | |
| 170 | ; |
| 171 | |
| 172 | ; |
| 173 | SUB lr, lr, #4 ; |
| 174 | STMFD sp!, {ip,lr} ; |
| 175 | |
| 176 | ; |
| 177 | LDR LR, =0xfffff000 |
| 178 | STR LR, [LR, #0xf00] |
| 179 | |
| 180 | ; |
| 181 | ; |
| 182 | ; |
| 183 | ; |
| 184 | LDR PC, =0x7fffffe0 |
| 185 | |
| 186 | ; |
| 187 | ; __mbed_reset is called after reset |
| 188 | ; we setup the stacks and realmonitor, then call Reset_Handler like on M3 |
| 189 | |
| 190 | ; Reset Handler |
| 191 | |
| 192 | Reset_Handler PROC |
| 193 | EXPORT Reset_Handler [WEAK] |
| 194 | IMPORT SystemInit |
| 195 | IMPORT __main |
| 196 | LDR R0, =SystemInit |
| 197 | MOV LR, PC |
| 198 | BX R0 |
| 199 | LDR R0, =__main |
| 200 | BX R0 |
| 201 | ENDP |
| 202 | |
| 203 | __mbed_reset |
| 204 | |
| 205 | ; |
| 206 | |
| 207 | LDR R0, =(0x40000000 + 0x8000) |
| 208 | |
| 209 | ; |
| 210 | MSR CPSR_c, #0x1B:OR:0x80:OR:0x40 |
| 211 | MOV SP, R0 |
| 212 | SUB R0, R0, #0x00000040 |
| 213 | |
| 214 | ; |
| 215 | MSR CPSR_c, #0x17:OR:0x80:OR:0x40 |
| 216 | MOV SP, R0 |
| 217 | SUB R0, R0, #0x00000040 |
| 218 | |
| 219 | ; |
| 220 | MSR CPSR_c, #0x11:OR:0x80:OR:0x40 |
| 221 | MOV SP, R0 |
| 222 | SUB R0, R0, #0x00000000 |
| 223 | |
| 224 | ; |
| 225 | MSR CPSR_c, #0x12:OR:0x80:OR:0x40 |
| 226 | MOV SP, R0 |
| 227 | SUB R0, R0, #0x00000040 |
| 228 | |
| 229 | ; |
| 230 | MSR CPSR_c, #0x13:OR:0x80:OR:0x40 |
| 231 | MOV SP, R0 |
| 232 | SUB R0, R0, #0x00000040 |
| 233 | |
| 234 | ; |
| 235 | MSR CPSR_c, #0x10 |
| 236 | MOV SP, R0 |
| 237 | |
| 238 | ; |
| 239 | LDR R0, =__mbed_init_realmonitor |
| 240 | MOV LR, PC |
| 241 | BX R0 |
| 242 | |
| 243 | ; |
| 244 | LDR R0, =Reset_Handler |
| 245 | BX R0 |
| 246 | |
| 247 | |
| 248 | END |