reset: br >main
nop
hardfault: reti
nop
memfault: reti
nop

main: // actual start of program
ldr sp, >sp_init

clr r5
clr r6
clr r7
clr r8
clr r9

ldr r0, >addr
addi r1, 0x01
st32 r0, r1
ld32 r5, r0

addi r0, 1
addi r1, 1
st32 r0, r1
ld32 r6, r0

addi r0, 1
addi r1, 1
st32 r0, r1
ld32 r7, r0

addi r0, 1
addi r1, 1
st32 r0, r1
ld32 r8, r0

addi r0, 1
addi r1, 1
st32 r0, r1
ld32 r9, r0

.align
sp_init: .word 1020 // 0x3FC
addr: .word 0x101