ProxSpace/devkitARM/arm-none-eabi/lib/gp32_crt0.s
2016-10-20 18:55:22 +02:00

74 lines
2 KiB
ArmAsm

.section ".init"
.code 32
.align
.global _start
@---------------------------------------------------------------------------------
_start:
@---------------------------------------------------------------------------------
b _start2
@---------------------------------------------------------------------------------
@ AXF addresses
@---------------------------------------------------------------------------------
_text_start:
.word __text_start
_ro_end:
.word __ro_end
_data_start:
.word __data_start
.word __bss_end
_bss_start:
.word __bss_start
_bss_end:
.word __bss_end
@---------------------------------------------------------------------------------
@ GamePark magic sequence
@---------------------------------------------------------------------------------
.word 0x44450011
.word 0x44450011
.word 0x01234567
.word 0x12345678
.word 0x23456789
.word 0x34567890
.word 0x45678901
.word 0x56789012
.word 0x23456789
.word 0x34567890
.word 0x45678901
.word 0x56789012
.word 0x23456789
.word 0x34567890
.word 0x45678901
.word 0x56789012
@---------------------------------------------------------------------------------
_start2:
@---------------------------------------------------------------------------------
mrs r0, CPSR
orr r0, r0, #0xC0
msr CPSR_ctl, r0
mrs r0, CPSR
bic r0, r0, #0xC0
orr r0, r0, #0x40
msr CPSR_ctl,r0
@---------------------------------------------------------------------------------
@ global constructors
@---------------------------------------------------------------------------------
ldr r3,=_call_main
mov lr,r3
ldr r3,=__libc_init_array
bx r3
@---------------------------------------------------------------------------------
@ Jump to user code
@---------------------------------------------------------------------------------
_call_main:
@---------------------------------------------------------------------------------
mov lr, #0
ldr r3, =main
bx r3
.pool
.end