pick a card:

Instruction set: 0 HALT 1 R0 = R0 + R1 2 R0 = R0 - R1 3 R0 = R0 + 1 4 R1 = R1 + 1 5 R0 = R0 - 1 6 R1 = R1 - 1 7 BEEP 8 X PRINT X 9 X R0 = MEMORY[X] 10 X R1 = MEMORY[X] 11 X MEMORY[X] = R0 12 X MEMORY[X] = R1 13 X JUMP TO X 14 X JUMP TO X IF R0 == 0 15 X JUMP TO X IF R0 != 0