The following mem file shows examples of the various opcode
from part 0, but is not a real program (i.e. together these
statements don't really do much).  The individual statements are:

line 0 and 1: r0 <- 0
line 2 and 3: r1 <- 1
line 4 and 5: r2 <- 2
line 6 and 7: r0 <- r1 + r2
line 8 and 9: branch if r1 is 0; PC <- PC + 6
line 10 and 11: r0 <- r1
line 12 and 13: r1 <- 4
line 14 and 15: r2 <- 3
line 16 and 17: r0 <- r1 - r2
line 18 and 19: mem[r1] <- r2
line 20 and 21: r0 <- mem[r1]

%

0:00000000
1:000010 00

2:00000001
3:000010 01

4:2
5:000010 10

6:01 10 0000
7:000001 00


8:01 10  0110
9:000011 00

10:01 10 0000
11:000100 00

12:00000100
13:000010 01

14:00000011
15:000010 10 

16:01 10 0000
17:000111 00

18:01 10 0000
19:000101 00

20:01 10 0000
21:000110 00