basepri.s

      .text

.global main
main:                       @ Label, not really required
        mov   r0, #5         @ Load register r0 with the value 5
        mov   r1, #4         @ Load register r1 with the value 4
        add   r2, r1, r0     @ Add r0 and r1 and store in r2
	
	mrs   r0, BASEPRI
	#MRS   r0, BASEPRI
	

stop:   b stop               @ Infinite loop to stop execution