1:
str r1, [r0, r2]
add r2, r2, #4
cmp r2, #0x1000 << 2 /* don't use beyond 0xfff00000 */
bge 2f
add r1, r1, #(PTE1_SIZE)
adds r4, r4, #-1
bhi 1b
2:
mov pc, lr