Question

Consider the following unsigned decimal constants: 12345, 34567, 9876543.

Perform the following operations:

Note: Do not use any pseudo instructions to do so.

(a) Write MIPS instruction(s) to store each constant in temporary registers(i.e., any of $t0, $t1, . . . $t7)

(b) Write MIPS instruction(s) to perform an addition operation of the given numbers with the decimal number 123.

Make sure the numbers follow the size limitations of the immediate instruction type.

Answer 1

Please up vote ,comment if any query . Thanks for Question .Be safe .

Note : check attached for register value after addition . code tested in MARS MIPS simulator .

Program Plan :

1. load immediate value 12345 into $t0 using li instruction
2. load immediate value 34567 into $t1 using li instruction
3. load immediate value 9876543 into $t2 using li instruction
4. add 123 to $t0,$t1,$t2 register using add instruction and store in $t3,$t4,$t5
5. add $t3=$t0+123
6. addi $t3,$t0,123
7. terminate program .

Program :

.data

.text #code section
   main:
       li $t0,12345    #load immediate value 12345 into $t0
       li $t1,34567    #load immediate value 34567 into $t1
       li $t2,9876543 #load immediate value 9876543 into $t2
  
       addi $t3,$t0,123 #add 123 to $t3 $t3=$t0+123
       addi $t4,$t1,123 #add 123 to $t4 $t4=$t1+123
       addi $t5,$t2,123 #add 123 to $t5 $t5=$t2+123
      
  
  
   #terminate program
   li $v0,10
   syscall
   

Output :

Please comment if you want any changes . Be safe .