In MIPS and must run in QtSpim Assignment 2 Write a program in assembly language

Question

In MIPS and must run in QtSpim

Assignment 2 Write a program in assembly language that asks the user to input two integers in the range 1 to 1,000 and calculates their product. You can only use shift, add or sub instructions to calculate the multiplication (not the mult instruction). The program should verify that both integers are within the specified range. If either on the integers are outside this range, the program should display a message "input range error" and ask the user to input again. If user persist in entering the wrong integers more than two times, the program should exit and display message "error limit exceeded." Else it should exit after calculating the product of the two integers that are within the specified range.

Explanation / Answer

.file   1 ""
        .section .mdebug.abi32
        .previous
        .nan    legacy
        .module fp=32
        .module nooddspreg
        .abicalls
        .section        .rodata.str1.4,"aMS",@progbits,1
        .align 2
$LC0:
        .ascii "Error Limit Exceeded"
        .align 2
$LC1:
        .ascii "Enter the first number"
        .align 2
$LC2:
        .ascii "%d"
        .align 2
$LC3:
        .ascii "Enter the second number"
        .align 2
$LC4:
        .ascii "Input Range error "
        .align 2
$LC5:
        .ascii "The product of the number is %d"
        .section        .text.startup,"ax",@progbits
        .align 2
        .globl main
        .set    nomips16
        .set    nomicromips
        .ent    main
        .type   main, @function
main:
        .frame $sp,56,$31              # vars= 8, regs= 5/0, args= 16, gp= 8
        .mask   0x800f0000,-4
        .fmask 0x00000000,0
        .set    noreorder
        .cpload $25
        .set    nomacro
        addiu   $sp,$sp,-56
        sw      $18,44($sp)
        sw      $16,36($sp)
        lw      $18,%got($LC1)($28)
        lw      $16,%got($LC2)($28)
        movz    $31,$31,$0
        sw      $19,48($sp)
        lw      $19,%got($LC3)($28)
        sw      $17,40($sp)
        .cprestore      16
        sw      $31,52($sp)
        li      $17,3                   # 0x3
        addiu   $18,$18,%lo($LC1)
        addiu   $16,$16,%lo($LC2)
$L2:
        addiu   $17,$17,-1
$L10:
        bne     $17,$0,$L3
        li      $4,1                    # 0x1

        lw      $5,%got($LC0)($28)
        lw      $25,%call16(__printf_chk)($28)
        nop
        .reloc 1f,R_MIPS_JALR,__printf_chk
1:      jalr    $25
        addiu   $5,$5,%lo($LC0)

        lw      $28,16($sp)
        nop
        lw      $25,%call16(exit)($28)
        nop
        .reloc 1f,R_MIPS_JALR,exit
1:      jalr    $25
        move    $4,$0

$L3:
        lw      $25,%call16(puts)($28)
        nop
        .reloc 1f,R_MIPS_JALR,puts
1:      jalr    $25
        move    $4,$18

        lw      $28,16($sp)
        addiu   $5,$sp,28
        lw      $25,%call16(__isoc99_scanf)($28)
        nop
        .reloc 1f,R_MIPS_JALR,__isoc99_scanf
1:      jalr    $25
        move    $4,$16

        lw      $28,16($sp)
        nop
        lw      $25,%call16(puts)($28)
        nop
        .reloc 1f,R_MIPS_JALR,puts
1:      jalr    $25
        addiu   $4,$19,%lo($LC3)

        lw      $28,16($sp)
        addiu   $5,$sp,24
        lw      $25,%call16(__isoc99_scanf)($28)
        nop
        .reloc 1f,R_MIPS_JALR,__isoc99_scanf
1:      jalr    $25
        move    $4,$16

        lw      $2,28($sp)
        lw      $28,16($sp)
        blez    $2,$L4
        nop

        lw      $2,24($sp)
        nop
        slt     $2,$2,1001
        bne     $2,$0,$L5
        nop

$L4:
        lw      $4,%got($LC4)($28)
        lw      $25,%call16(puts)($28)
        nop
        .reloc 1f,R_MIPS_JALR,puts
1:      jalr    $25
        addiu   $4,$4,%lo($LC4)

        lw      $28,16($sp)
$L5:
        lw      $2,24($sp)
        lw      $3,28($sp)
        bgez    $2,$L6
        move    $6,$2

        move    $6,$0
$L6:
        mult    $6,$3
        mflo    $6
        blez    $3,$L2
        slt     $2,$2,1001

        beq     $2,$0,$L10
        addiu   $17,$17,-1

        lw      $5,%got($LC5)($28)
        lw      $25,%call16(__printf_chk)($28)
        addiu   $5,$5,%lo($LC5)
        .reloc 1f,R_MIPS_JALR,__printf_chk
1:      jalr    $25
        li      $4,1                    # 0x1

        lw      $31,52($sp)
        lw      $19,48($sp)
        lw      $18,44($sp)
        lw      $17,40($sp)
        lw      $16,36($sp)
        move    $2,$0
        j       $31
        addiu   $sp,$sp,56

        .set    macro
        .set    reorder
        .end    main
        .size   main, .-main
        .ident "GCC: (Ubuntu 5.4.0-6ubuntu1~16.04.1) 5.4.0 20160609"

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