Database System Concepts
Database System Concepts
7th Edition
ISBN: 9780078022159
Author: Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher: McGraw-Hill Education
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Using MIPS assembly language

PLEASE HELP ME FIX THE FOLLOWING CODE RUNNING WITH FOLLOWING ERRORS:

Error in C:\Users\supre\Documents\Assignment9.asm line 56 column 15: "$t2": operand is of incorrect type
Error in C:\Users\supre\Documents\Assignment9.asm line 73 column 15: "$s2": operand is of incorrect type
Error in C:\Users\supre\Documents\Assignment9.asm line 77 column 15: "$s2": operand is of incorrect type
Assemble: operation completed with errors.

Heres the code:

# Program to generate Hamming code for an 8-bit byte

.data
prompt: .asciiz "Enter an 8-bit positive integer (0-255): "
hamming_label: .asciiz "The Hamming code is: "


.text
.globl main
main:


# Prompt the user to input an 8-bit positive integer
li $v0, 4 # system call for printing string
la $a0, prompt # load string address
syscall


# Get the user input
li $v0, 5 # system call for reading integer
syscall
move $s0, $v0 # store the input in s0


# Create the data word and initialize the parity bits to 0
li $s1, 0 # s1 stores the Hamming code
li $s2, 1 # s2 stores the position of the parity bit


# Loop to calculate the parity bits
loop:
beq $s2, 13, endloop # exit the loop when all parity bits are calculated


# Check if the current bit is a parity bit
and $t0, $s2, $s0
beq $t0, $zero, setdata # skip the parity bit positions


# Calculate the parity bit value
li $t1, 0 # t1 stores the number of ones in the checked positions
li $t2, 0 # t2 stores the current position to check
li $t3, 0 # t3 stores the parity bit value
check:
beq $t2, 12, setparity # exit the loop when all checked positions are processed


# Check the current position
and $t4, $t2, $s2
beq $t4, $zero, skip # skip the unchecked positions


# Count the ones in the checked positions
and $t5, $s0, $t2
srl $t5, $t5, $t2
and $t6, $t5, 1
add $t1, $t1, $t6


skip:
addi $t2, $t2, 1 # move to the next position
j check


# Set the parity bit value based on the number of ones
and $t7, $t1, 1
beq $t7, $zero, setparity
li $t3, 1


setparity:
sll $t3, $t3, $s2 # shift the parity bit value to the correct position
or $s1, $s1, $t3 # set the parity bit in the Hamming code

setdata:
sll $t8, $s0, $s2 # shift the data bit to the correct position
or $s1, $s1, $t8 # set the data bit in the Hamming code


addi $s2, $s2, 1 # move to the next bit position
j loop


endloop:
# Print the Hamming code in hex
li $v0, 4 # system call for printing string
la $a0, hamming_label # load string address
syscall


li $v0, 34 # system call for printing integer in hex
move $a0, $s1 # load the Hamming code
syscall


li $v0, 10 # system call for exit
syscall

 

im trying to create a MIPS programs that determines what the ECC code should be for a given number (an 8-bit byte). The codes should work for 8-bit positive numbers as these are simpler to work with than larger numbers.

The program is to request the user to enter a byte of data (a positive integer in the range of 0 to 255 in decimal) and then create the 12-bit Hamming code as described in your text (see above). The program is to then output this (with an appropriate label) in hex.

 

When the program runs correctly, it should prompt the user to enter an 8-bit positive integer. After the input is received, the program will calculate the corresponding Hamming code using the algorithm described in the prompt. Finally, the program will output the Hamming code in hexadecimal format, along with an appropriate label.

 

 

 

 

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