| 1 | .extern CopyBootToRAM\r |
| 2 | \r |
| 3 | .text\r |
| 4 | .code 32\r |
| 5 | .align 0\r |
| 6 | \r |
| 7 | .global start\r |
| 8 | start:\r |
| 9 | b Reset\r |
| 10 | b UndefinedInstruction\r |
| 11 | b SoftwareInterrupt\r |
| 12 | b PrefetchAbort\r |
| 13 | b DataAbort\r |
| 14 | b Reserved\r |
| 15 | b Irq\r |
| 16 | b Fiq\r |
| 17 | \r |
| 18 | Reset:\r |
| 19 | ldr sp, = 0x0020FFF8 @ initialize stack pointer to top of RAM\r |
| 20 | bl CopyBootToRAM @ copy bootloader to RAM (in case the\r |
| 21 | @ user re-flashes the bootloader)\r |
| 22 | ldr r3, = 0x00200000 @ start address of RAM bootloader\r |
| 23 | bx r3 @ jump to it\r |
| 24 | \r |
| 25 | Fiq:\r |
| 26 | b Fiq\r |
| 27 | UndefinedInstruction:\r |
| 28 | b UndefinedInstruction\r |
| 29 | SoftwareInterrupt:\r |
| 30 | b SoftwareInterrupt\r |
| 31 | PrefetchAbort:\r |
| 32 | b PrefetchAbort\r |
| 33 | DataAbort:\r |
| 34 | b DataAbort\r |
| 35 | Reserved:\r |
| 36 | b Reserved\r |
| 37 | Irq:\r |
| 38 | b Irq\r |