Top section of program before the % can be used
for program comments.
Sum immediate constants into r0.

%                             // Begin code section
// LOAD_IMMEDIATE r0<- 3  
0: 3                           // values can be decimal..
1: 000010 00             //   .. or binary

// LOAD_IMMEDIATE r1<- 2  
2: 2
3: 000010 01

// ADD r0 <- r0 + r1      
4: 00 01 0000            // binary values can have spaces
5: 000001 00  
       
// HALT                   
10: 0                             // Should now have 5 in r0      
11: 000011 00

// End