SashegDev
23 lines
706 B
ArmAsm
23 lines
706 B
ArmAsm
.syntax unified
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.cpu cortex-a7
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.thumb
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@ Minimal PBL stub (position-independent): BLX to SBL1 entry (seg1),
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@ then canonical regs + jump to sbl_main. Mirrors PBL call-then-jump.
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.text
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.global pbl_stub
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pbl_stub:
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push {r4-r7, lr}
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movw r12, #0x6b81
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movt r12, #0x800
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blx r12 @ SBL1 entry (odd: stay Thumb)
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movw r0, #0x0000
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movt r0, #0x0022 @ r0 = pbl_shared 0x00220000
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mov r5, r0
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movw sl, #0x0000
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movt sl, #0x0806 @ sl = table base 0x08060000
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movw fp, #0x1000
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movt fp, #0x0806 @ fp = 0x08061000
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movw lr, #0xf63f
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movt lr, #0x0802 @ lr = sbl_main odd (noreturn marker)
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bx lr
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