1 2 3 4 5
93 90 A3 03 # 0: r0 = 3 + 0 92 90 02 # 4: emit r0 92 90 FF 03 # 7: r0 = r0 - 1 91 90 00 # a: jump 0 if r0 == 0 93 90 A4 00 # d: jump 4