mirror of
https://github.com/d0k3/GodMode9.git
synced 2025-06-26 05:32:47 +00:00
44 lines
828 B
ArmAsm
44 lines
828 B
ArmAsm
@ This file was kindly provided by Wolfvak - thank you!
|
|
|
|
.section .text.boot
|
|
.arm
|
|
|
|
.global __boot
|
|
__boot:
|
|
@ Disable interrupts and switch to IRQ
|
|
cpsid aif, #0x12
|
|
|
|
@ Writeback and invalidate caches
|
|
mov r0, #0
|
|
mcr p15, 0, r0, c7, c7, 0
|
|
mcr p15, 0, r0, c7, c14, 0
|
|
mcr p15, 0, r0, c7, c10, 4
|
|
|
|
ldr sp, =__irq_stack
|
|
|
|
@ Switch to SVC
|
|
cpsid aif, #0x13
|
|
ldr sp, =__prg_stack
|
|
|
|
@ Reset values
|
|
ldr r0, =0x00054078
|
|
ldr r1, =0x0000000F
|
|
ldr r2, =0x00000000
|
|
|
|
@ MMU disabled, Caches disabled, other misc crap going on
|
|
mcr p15, 0, r0, c1, c0, 0
|
|
mcr p15, 0, r1, c1, c0, 1
|
|
mcr p15, 0, r2, c1, c0, 2
|
|
|
|
ldr r0, =__bss_start
|
|
ldr r1, =__bss_end
|
|
mov r2, #0
|
|
.Lclearbss:
|
|
str r2, [r0], #4
|
|
cmp r0, r1
|
|
blt .Lclearbss
|
|
|
|
bl main
|
|
|
|
b __boot
|