Question

Write a program in Mars MIPS Assembly Language that asks the user for an 8-digit hexadecimal and then prints out its 32-bit binary representation, the operation of the function, the format (I, R, or J), the fields associated with the format (op, rs, rt, imm, shamt, funct), and the instruction associated with the hexadecimal. All five parts must be written as functions.

Answer 1

Greetings!!

Code with comments:

.data
mydata: .word 0
prompt: .asciiz "Please enter an eight digit number\n"
out: .asciiz "Equivalent binary number is:"
.text
   la $a0,prompt       #load address of prompt message
   li $v0,4       #parameter for displaying string
   syscall           #system call to display message

   la $a0,mydata       #load address of the data variable
   li $v0,5       #parameter for reading a word
   syscall           #system call for reading from the keyboard
   move $t0,$v0       #copy the number read from the keyboard into the register t0

   la $a0,out       #load the address of out message
   li $v0,4       #parameter for string display
   syscall           #system call for display

   addi   $t1, $zero, 31   # number for right shift
   addi   $t2, $zero, 0   # loop count set to 0
   addi   $t3, $zero, 32   # condition for exit
repeat:
   beq   $t2, $t3,end   #if count is 32,then end
   sllv   $a0, $t0, $t2   #shift the number left by one bit
   srlv   $a0, $a0, $t1   #shift right 31 bits, the left shifted number so that the MSB is available
   li   $v0, 1       #parameter for displaying the bit  
   syscall           #system call for display
   addi   $t2, $t2, 1   #increment loop count
   j repeat       #repeat the loop
end:
li $v0,10           #parameter for termination
syscall               #system call for termination

Output screenshot:

Hope this helps

With function: