maze.S: mailbox 0x08800200
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@@ -1,15 +1,15 @@
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.syntax unified
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.cpu cortex-a7
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.thumb
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@ maze entry logger: record lr/sp to mailbox 0x08062200, return 0.
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@ maze entry logger: record lr/sp to mailbox 0x08800200, return 0.
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@ Guard: if lr is outside known-good SBL/stub ranges, spin with
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@ interrupts disabled instead of jumping into the void (post-mortem
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@ via vec trap regs).
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.text
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.global maze_stub
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maze_stub:
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movw r12, #:lower16:0x08062200
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movt r12, #:upper16:0x08062200
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movw r12, #:lower16:0x08800200
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movt r12, #:upper16:0x08800200
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str lr, [r12]
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str sp, [r12, #4]
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movs r0, #0
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