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annotate target-utils/tf-breakin/payload.S @ 473:658b141a1600

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os_com_fl.c: small buglet in the reconstruction
author Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
date Fri, 27 Jun 2014 00:05:23 +0000
parents 4e0aa166baa5
children 7166c8311b0d
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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356
4e0aa166baa5 target-utils/tf-breakin: payload written for the TF C139 break-in attempt
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
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1 .text
4e0aa166baa5 target-utils/tf-breakin: payload written for the TF C139 break-in attempt
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
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2 .org 0
4e0aa166baa5 target-utils/tf-breakin: payload written for the TF C139 break-in attempt
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
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3 .code 32
4e0aa166baa5 target-utils/tf-breakin: payload written for the TF C139 break-in attempt
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
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4
4e0aa166baa5 target-utils/tf-breakin: payload written for the TF C139 break-in attempt
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
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5 @ set CPSR like mot931c payload does
4e0aa166baa5 target-utils/tf-breakin: payload written for the TF C139 break-in attempt
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
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6 msr CPSR_c, #0xd3
4e0aa166baa5 target-utils/tf-breakin: payload written for the TF C139 break-in attempt
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
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7 @ disable the watchdog
4e0aa166baa5 target-utils/tf-breakin: payload written for the TF C139 break-in attempt
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
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8 ldr r1, =0xfffff802
4e0aa166baa5 target-utils/tf-breakin: payload written for the TF C139 break-in attempt
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
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9 mov r0, #0xf5
4e0aa166baa5 target-utils/tf-breakin: payload written for the TF C139 break-in attempt
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
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10 strh r0, [r1, #2]
4e0aa166baa5 target-utils/tf-breakin: payload written for the TF C139 break-in attempt
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
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11 mov r0, #0xa0
4e0aa166baa5 target-utils/tf-breakin: payload written for the TF C139 break-in attempt
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
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12 strh r0, [r1, #2]
4e0aa166baa5 target-utils/tf-breakin: payload written for the TF C139 break-in attempt
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
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13 @ MODEM UART
4e0aa166baa5 target-utils/tf-breakin: payload written for the TF C139 break-in attempt
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
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14 ldr r6, =0xffff5800
4e0aa166baa5 target-utils/tf-breakin: payload written for the TF C139 break-in attempt
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
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15 @ wait for any previous output to flush out
4e0aa166baa5 target-utils/tf-breakin: payload written for the TF C139 break-in attempt
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
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16 1: ldrb r0, [r6, #5]
4e0aa166baa5 target-utils/tf-breakin: payload written for the TF C139 break-in attempt
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
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17 tst r0, #0x20
4e0aa166baa5 target-utils/tf-breakin: payload written for the TF C139 break-in attempt
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
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18 beq 1b
4e0aa166baa5 target-utils/tf-breakin: payload written for the TF C139 break-in attempt
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
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19 @ send our indication
4e0aa166baa5 target-utils/tf-breakin: payload written for the TF C139 break-in attempt
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
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20 adr r1, outstr
4e0aa166baa5 target-utils/tf-breakin: payload written for the TF C139 break-in attempt
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
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21 mov r2, #6
4e0aa166baa5 target-utils/tf-breakin: payload written for the TF C139 break-in attempt
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
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22 1: ldrb r0, [r1], #1
4e0aa166baa5 target-utils/tf-breakin: payload written for the TF C139 break-in attempt
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
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23 strb r0, [r6]
4e0aa166baa5 target-utils/tf-breakin: payload written for the TF C139 break-in attempt
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
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24 subs r2, r2, #1
4e0aa166baa5 target-utils/tf-breakin: payload written for the TF C139 break-in attempt
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
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25 bne 1b
4e0aa166baa5 target-utils/tf-breakin: payload written for the TF C139 break-in attempt
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
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26 @ wait for this output to go out to the TxD pin
4e0aa166baa5 target-utils/tf-breakin: payload written for the TF C139 break-in attempt
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
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27 1: ldrb r0, [r6, #5]
4e0aa166baa5 target-utils/tf-breakin: payload written for the TF C139 break-in attempt
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
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28 tst r0, #0x40
4e0aa166baa5 target-utils/tf-breakin: payload written for the TF C139 break-in attempt
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
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29 beq 1b
4e0aa166baa5 target-utils/tf-breakin: payload written for the TF C139 break-in attempt
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
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30 @ enable the Calypso boot ROM
4e0aa166baa5 target-utils/tf-breakin: payload written for the TF C139 break-in attempt
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
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31 ldr r1, =0xFFFFFB10
4e0aa166baa5 target-utils/tf-breakin: payload written for the TF C139 break-in attempt
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
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32 mov r2, #0x0100
4e0aa166baa5 target-utils/tf-breakin: payload written for the TF C139 break-in attempt
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
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33 strh r2, [r1]
4e0aa166baa5 target-utils/tf-breakin: payload written for the TF C139 break-in attempt
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
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34 @ jump to it!
4e0aa166baa5 target-utils/tf-breakin: payload written for the TF C139 break-in attempt
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
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35 mov pc, #0
4e0aa166baa5 target-utils/tf-breakin: payload written for the TF C139 break-in attempt
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
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36
4e0aa166baa5 target-utils/tf-breakin: payload written for the TF C139 break-in attempt
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
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37 outstr: .byte 2,2,2,'O','K',2