MIPS code to get integer input, process, print output

This is a sample MIPS assembler code used to get integer input, process (plain integer addition), print integer output in MIPS.

Launch EzMIPS, copy the following MIPS code and paste it into EzMIPS. Assemble, Run.

# --------- Input, process, output in MIPS assembly ------------ #


# ---------------------- .data segment ------------------------- #
.data

szEnterA: .asciiz "Enter A: "
szEnterB: .asciiz "Enter B: "

szResult: .asciiz "A + B =  "
szLF:     .asciiz "\n"

# --------------- .text segment (program code) ----------------- #
.text

.globl main

main:

    # print "Enter A: "
    li $v0, 4                 # print string syscall code = 4
    la $a0, szEnterA          # load the address of szEnterA
    syscall                   # print it!

    # Get integer input A from user
    li $v0, 5                 # read int syscall code = 5
    syscall
    # syscall results returned in $v0

    # Save integer A in $t0
    move $t0, $v0

    # print "Enter B: "
    li $v0, 4                 # print string syscall code = 4
    la $a0, szEnterB          # load the address of szEnterB
    syscall                   # print it!


    # Get integer input B from user
    li $v0, 5                 # read integer syscall code = 5
    syscall
    # syscall results returned in $v0

    # Save integer B in $t1
    move $t1, $v0


    # Perform the addition: A = A + B
    add $t0, $t0, $t1


    # print "A + B =  "
    li $v0, 4                 # print string syscall code = 4
    la $a0, szResult          # load the address of szResult
    syscall                   # print it!


    # Print integer sum
    li $v0, 1                 # print integer syscall code = 1
    move $a0, $t0             # integer to print must be in $a0
    syscall                   # print it!

    # Print "\n"
    li $v0, 4                 # print string syscall code = 4
    la $a0, szLF
    syscall


    li $v0, 17                # exit program
    li $a0, -1                # termination result = -1
    syscall
# -------------------------------------------------------------- #

Please let me know of any suggestions or bugs regarding the code above.

Regards,

Antonis