Write an assembly program to determine the number of decimal

Write an assembly program to determine the number of (decimal) 45’s found in memory from addresses $2000 through $207F. Counting the number of (decimal) 45 found in the memory should be done as a subroutine.

Solution

Code :

.data

msg   .asciiz \"\ THE COUNT OF 45 within address 2000 - 207F is \"

.text
main:
   li $s2,0
   li $t0,0x2000
   li $t1,0x207F
   li $s0,0x2D
   LOOP:  
       lw $t3,($t0)
       bne $s0,$t3,next
       addi $s0,$s0,1
       next:
           addi $t0,$t0,1
   ble $t0,$t1,LOOP

   li $v0,4
   la $a0,msg
   syscall

   li $v0, 1
   move $a0, $s0
   syscall
  
   li $v0,10
   syscall