FreeCalypso > hg > freecalypso-sw
annotate target-utils/c139-lldbg/entry.S @ 1031:6312f684cef1
gsm-fw feature tch-reroute: byte order changed to big endian
author | Mychaela Falconia <falcon@freecalypso.org> |
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date | Tue, 31 May 2016 18:50:32 +0000 |
parents | d7830aee0d35 |
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955
d7830aee0d35
c139-lldbg hack concocted
Mychaela Falconia <falcon@ivan.Harhan.ORG>
parents:
diff
changeset
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1 .text |
d7830aee0d35
c139-lldbg hack concocted
Mychaela Falconia <falcon@ivan.Harhan.ORG>
parents:
diff
changeset
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2 .globl _entry |
d7830aee0d35
c139-lldbg hack concocted
Mychaela Falconia <falcon@ivan.Harhan.ORG>
parents:
diff
changeset
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3 _entry: |
d7830aee0d35
c139-lldbg hack concocted
Mychaela Falconia <falcon@ivan.Harhan.ORG>
parents:
diff
changeset
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4 .code 16 |
d7830aee0d35
c139-lldbg hack concocted
Mychaela Falconia <falcon@ivan.Harhan.ORG>
parents:
diff
changeset
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5 bx pc |
d7830aee0d35
c139-lldbg hack concocted
Mychaela Falconia <falcon@ivan.Harhan.ORG>
parents:
diff
changeset
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6 nop |
d7830aee0d35
c139-lldbg hack concocted
Mychaela Falconia <falcon@ivan.Harhan.ORG>
parents:
diff
changeset
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7 |
d7830aee0d35
c139-lldbg hack concocted
Mychaela Falconia <falcon@ivan.Harhan.ORG>
parents:
diff
changeset
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8 .code 32 |
d7830aee0d35
c139-lldbg hack concocted
Mychaela Falconia <falcon@ivan.Harhan.ORG>
parents:
diff
changeset
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9 stmfd sp!, {r0-r12,lr} |
d7830aee0d35
c139-lldbg hack concocted
Mychaela Falconia <falcon@ivan.Harhan.ORG>
parents:
diff
changeset
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10 mrs r0, CPSR |
d7830aee0d35
c139-lldbg hack concocted
Mychaela Falconia <falcon@ivan.Harhan.ORG>
parents:
diff
changeset
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11 mov r1, sp |
d7830aee0d35
c139-lldbg hack concocted
Mychaela Falconia <falcon@ivan.Harhan.ORG>
parents:
diff
changeset
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12 /* supervisor mode, disable all interrupts */ |
d7830aee0d35
c139-lldbg hack concocted
Mychaela Falconia <falcon@ivan.Harhan.ORG>
parents:
diff
changeset
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13 msr CPSR_c, #0xd3 |
d7830aee0d35
c139-lldbg hack concocted
Mychaela Falconia <falcon@ivan.Harhan.ORG>
parents:
diff
changeset
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14 ldr sp, =stack_bottom |
d7830aee0d35
c139-lldbg hack concocted
Mychaela Falconia <falcon@ivan.Harhan.ORG>
parents:
diff
changeset
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15 /* save entry SP and CPSR */ |
d7830aee0d35
c139-lldbg hack concocted
Mychaela Falconia <falcon@ivan.Harhan.ORG>
parents:
diff
changeset
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16 ldr r2, =lldbg_entry_cpsr |
d7830aee0d35
c139-lldbg hack concocted
Mychaela Falconia <falcon@ivan.Harhan.ORG>
parents:
diff
changeset
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17 str r0, [r2] |
d7830aee0d35
c139-lldbg hack concocted
Mychaela Falconia <falcon@ivan.Harhan.ORG>
parents:
diff
changeset
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18 ldr r2, =lldbg_entry_sp |
d7830aee0d35
c139-lldbg hack concocted
Mychaela Falconia <falcon@ivan.Harhan.ORG>
parents:
diff
changeset
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19 str r1, [r2] |
d7830aee0d35
c139-lldbg hack concocted
Mychaela Falconia <falcon@ivan.Harhan.ORG>
parents:
diff
changeset
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20 b main |