FreeCalypso > hg > freecalypso-tools
annotate target-utils/c139-lldbg/entry.S @ 837:724a6bc2a4b8
CHANGES: document tiaud-compile & tiaud-decomp extension
author | Mychaela Falconia <falcon@freecalypso.org> |
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date | Fri, 30 Jul 2021 01:37:42 +0000 |
parents | e7502631a0f9 |
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rev | line source |
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e7502631a0f9
initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
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1 .text |
e7502631a0f9
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Mychaela Falconia <falcon@freecalypso.org>
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2 .globl _entry |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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3 _entry: |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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4 .code 16 |
e7502631a0f9
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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5 bx pc |
e7502631a0f9
initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
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6 nop |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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7 |
e7502631a0f9
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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8 .code 32 |
e7502631a0f9
initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
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9 stmfd sp!, {r0-r12,lr} |
e7502631a0f9
initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
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10 mrs r0, CPSR |
e7502631a0f9
initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
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11 mov r1, sp |
e7502631a0f9
initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
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12 /* supervisor mode, disable all interrupts */ |
e7502631a0f9
initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
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13 msr CPSR_c, #0xd3 |
e7502631a0f9
initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
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14 ldr sp, =stack_bottom |
e7502631a0f9
initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
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15 /* save entry SP and CPSR */ |
e7502631a0f9
initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
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16 ldr r2, =lldbg_entry_cpsr |
e7502631a0f9
initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
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17 str r0, [r2] |
e7502631a0f9
initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
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18 ldr r2, =lldbg_entry_sp |
e7502631a0f9
initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
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19 str r1, [r2] |
e7502631a0f9
initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
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20 b main |