MIPSym Assembly Write a function to print all the values in the tuple array. Thi

Question

MIPSym Assembly

Write a function to print all the values in the tuple array. This function will be used for debugging. It should take the list of tuples as a first argument and the number of tuples as a second argument.
Pseudo code is as follows:

void printTuples(int *tuples, int num) {
   int i;
       for (i=0; i<num; i++) {
           print i;
           print “:”;
           print tuples[i][0];
           print tuples[i][1];
           print tuples[i][2];
           print tuples[i][3];
           print “ ”;
       }
   }
The test program should run as follows:
1) Allocate the tuples[][] array
2) Initialize the tuples[][] array to zero
3) num=getTuples(&tuples)
4) printTuples(&tuples,num)

Explanation / Answer

load:

   lw   register_destination, RAM_source
#copy word (4 bytes) at source RAM location to destination register.

   lb   register_destination, RAM_source
#copy byte at source RAM location to low-order byte of destination register,
# and sign-e.g.tend to higher-order bytes

store word:

   sw   register_source, RAM_destination
#store word in source register into RAM destination

   sb   register_source, RAM_destination
#store byte (low-order) in source register into RAM destination

load immediate:

   li   register_destination, value
#load immediate value into destination register

example:
   .data
var1:   .word   23       # declare storage for var1; initial value is 23

   .text
__start:
   lw   $t0, var1       # load contents of RAM location into register $t0: $t0 = var1
   li   $t1, 5       # $t1 = 5 ("load immediate")
   sw   $t1, var1       # store contents of register $t1 into RAM: var1 = $t1
   done

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