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maze.S: mailbox 0x08800200

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SashegDev
2026-09-11 08:06:34 +00:00
parent 329ceac0a3
commit 695ed94a84
1 changed files with 3 additions and 3 deletions
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qemu/maze.S
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@@ -1,15 +1,15 @@
.syntax unified .syntax unified
.cpu cortex-a7 .cpu cortex-a7
.thumb .thumb
@ maze entry logger: record lr/sp to mailbox 0x08062200, return 0. @ maze entry logger: record lr/sp to mailbox 0x08800200, return 0.
@ Guard: if lr is outside known-good SBL/stub ranges, spin with @ Guard: if lr is outside known-good SBL/stub ranges, spin with
@ interrupts disabled instead of jumping into the void (post-mortem @ interrupts disabled instead of jumping into the void (post-mortem
@ via vec trap regs). @ via vec trap regs).
.text .text
.global maze_stub .global maze_stub
maze_stub: maze_stub:
movw r12, #:lower16:0x08062200 movw r12, #:lower16:0x08800200
movt r12, #:upper16:0x08062200 movt r12, #:upper16:0x08800200
str lr, [r12] str lr, [r12]
str sp, [r12, #4] str sp, [r12, #4]
movs r0, #0 movs r0, #0