FreeCalypso > hg > freecalypso-tools
comparison target-utils/c139-lldbg/entry.S @ 0:e7502631a0f9
initial import from freecalypso-sw rev 1033:5ab737ac3ad7
| author | Mychaela Falconia <falcon@freecalypso.org> |
|---|---|
| date | Sat, 11 Jun 2016 00:13:35 +0000 |
| parents | |
| children |
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| -1:000000000000 | 0:e7502631a0f9 |
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| 1 .text | |
| 2 .globl _entry | |
| 3 _entry: | |
| 4 .code 16 | |
| 5 bx pc | |
| 6 nop | |
| 7 | |
| 8 .code 32 | |
| 9 stmfd sp!, {r0-r12,lr} | |
| 10 mrs r0, CPSR | |
| 11 mov r1, sp | |
| 12 /* supervisor mode, disable all interrupts */ | |
| 13 msr CPSR_c, #0xd3 | |
| 14 ldr sp, =stack_bottom | |
| 15 /* save entry SP and CPSR */ | |
| 16 ldr r2, =lldbg_entry_cpsr | |
| 17 str r0, [r2] | |
| 18 ldr r2, =lldbg_entry_sp | |
| 19 str r1, [r2] | |
| 20 b main |