The following ARM program calculates the absolute value of the number in r1.

mov r1, #-77 ; The number to calculate absolute value

cmp r1, #0

bge positive

rsb r1, r1, #0 ; Flip the sign (reverse subtract)

positive:

mov r0, #1 ; Use stdout to print

swi 0x6B ; Print the integer in register r1

swi 0x11 ; Halt

Rewrite the program using conditional execution so that the branch instruction 'bge' and label are not needed

pur-new-sol