mirror of
https://github.com/brain-hackers/lab
synced 2024-11-01 07:47:59 +09:00
27 lines
588 B
ArmAsm
27 lines
588 B
ArmAsm
.text
|
|
.align 2
|
|
.global _start
|
|
|
|
_start:
|
|
ldr r0, =0x67800000
|
|
|
|
cpsid if
|
|
|
|
mrc p15, 0, r8, c14, c2, 1
|
|
bic r8, r8, #1
|
|
mcr p15, 0, r8, c14, c2, 1
|
|
mrc p15, 0, r8, c14, c3, 1
|
|
bic r8, r8, #1
|
|
mcr p15, 0, r8, c14, c3, 1
|
|
|
|
mov r9, #0
|
|
mrc p15, 0, r10, c1, c0, 0
|
|
@bic r10, r10, #5 @ disable MMU and dcache
|
|
bic r10, r10, #1 @ disable MMU
|
|
@bic r10, r10, #4096 @ disable icache
|
|
mcr p15, 0, r10, c1, c0, 0 // write ctrl regs
|
|
#mcr p15, 0, r9, c7, c7, 0 // invalidate cache
|
|
#mcr p15, 0, r9, c8, c7, 0 // invalidate TLB
|
|
mov pc, r0
|
|
|