- add r3, r3, #1 << 20
- str r3, [r0, #4]! @ KERNEL + 1MB
- add r3, r3, #1 << 20
- str r3, [r0, #4]! @ KERNEL + 2MB
- add r3, r3, #1 << 20
- str r3, [r0, #4] @ KERNEL + 3MB
+
+ ldr r6, =(_end - PAGE_OFFSET - 1) @ r6 = number of sections
+ mov r6, r6, lsr #20 @ needed for kernel minus 1
+
+1: add r3, r3, #1 << 20
+ str r3, [r0, #4]!
+ subs r6, r6, #1
+ bgt 1b