.data

main:

 la $t2, Hex

la $a0, ans
li $v0, 4
 syscall



 li $t0, 8               # counter
 la $t3, result
 Loop:
 beqz $t0, Exit      # branch to exit if counter is equal to zero
 rol $t2, $t2, 4     # rotate 4 bits to the left

 and $t4, $t2, 0xf           # mask with 1111
 ble $t4, 9, Sum     # if less than or equal to nine, branch to sum
 addi $t4, $t4, 0x37           # if greater than nine, add 55
 b End
 Sum:
     addi $t4, $t4, 0x30   # add 48 to result
 End:
 sb $t4, 0($t3)          # store hex digit into result
 addi $t3, $t3, 1        # increment address counter
 sub $t0, $t0, 1       # decrement loop counter
 j Loop
  Exit:

 la $a0, result

li $v0, 4
 syscall

 la $v0, 10
 syscall