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maze struct ptrs odd (blx stays Thumb)

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SashegDev
2026-09-11 08:40:06 +00:00
parent 40943bbd51
commit 2087cba49c
1 changed files with 4 additions and 3 deletions
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qemu/saimaa.c
+4 -3
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@@ -466,9 +466,10 @@ static void saimaa_machine_init(MachineState *machine)
w = S + 8; w = S + 8;
cpu_physical_memory_write(S, &w, 4); cpu_physical_memory_write(S, &w, 4);
/* [struct+4] is another fn ptr (e.g. 0x801b72e ldr r3,[r0,#4] /* [struct+4] is another fn ptr (e.g. 0x801b72e ldr r3,[r0,#4]
* with r0 = maze S via POOLS redirect); point at STUB too */ * with r0 = maze S via POOLS redirect); point at STUB too.
cpu_physical_memory_write(S + 4, &STUB, 4); * NOTE: ODD (STUBV) — blx to even would switch to ARM! */
cpu_physical_memory_write(S + 8, &STUB, 4); cpu_physical_memory_write(S + 4, &STUBV, 4);
cpu_physical_memory_write(S + 8, &STUBV, 4);
{ {
/* from qemu/maze.S: mailbox logger + lr-range guard. /* from qemu/maze.S: mailbox logger + lr-range guard.
* Bad lr (not 0x08xxxxxx) spins with IRQs off instead of * Bad lr (not 0x08xxxxxx) spins with IRQs off instead of