Question

In: Computer Science

Convert C code to MIPS assembly language 1) sum = 0; for(i=0; I < 1000; i++)...

Convert C code to MIPS assembly language

1)

sum = 0;

for(i=0; I < 1000; i++)

sum = sum + I;

printf(“sum=%d”, sum);

2)

int i, v[10];

int min, k;

for(i=0; i < 10; i++)

scanf(“%d”, &v[i]);

min = v[0]

for(i=1; I < 10; i++)

if(min > v[i]){

min = v[i]

k = I;

}

printf(“%d=>%d”, k, min);

Expert Solution

1. MIPS assembly language for the first code

.file   1 ""
        .section .mdebug.abi32
        .previous
        .nan    legacy
        .module fp=32
        .module nooddspreg
        .abicalls
        .rdata
        .align  2
$LC0:
        .ascii  "sum=%d\000"
        .text
        .align  2
        .globl  main
        .set    nomips16
        .set    nomicromips
        .ent    main
        .type   main, @function
main:
        .frame  $fp,40,$31              # vars= 8, regs= 2/0, args= 16, gp= 8
        .mask   0xc0000000,-4
        .fmask  0x00000000,0
        .set    noreorder
        .cpload $25
        .set    nomacro
        addiu   $sp,$sp,-40
        sw      $31,36($sp)
        sw      $fp,32($sp)
        move    $fp,$sp
        .cprestore      16
        movz    $31,$31,$0
        sw      $0,24($fp)
        sw      $0,28($fp)
        b       $L2
        nop

$L3:
        lw      $3,24($fp)
        lw      $2,28($fp)
        nop
        addu    $2,$3,$2
        sw      $2,24($fp)
        lw      $2,28($fp)
        nop
        addiu   $2,$2,1
        sw      $2,28($fp)
$L2:
        lw      $2,28($fp)
        nop
        slt     $2,$2,1000
        bne     $2,$0,$L3
        nop

        lw      $5,24($fp)
        lw      $2,%got($LC0)($28)
        nop
        addiu   $4,$2,%lo($LC0)
        lw      $2,%call16(printf)($28)
        nop
        move    $25,$2
        .reloc  1f,R_MIPS_JALR,printf
1:      jalr    $25
        nop

        lw      $28,16($fp)
        move    $2,$0
        move    $sp,$fp
        lw      $31,36($sp)
        lw      $fp,32($sp)
        addiu   $sp,$sp,40
        j       $31
        nop

        .set    macro
        .set    reorder
        .end    main
        .size   main, .-main
        .ident  "GCC: (Ubuntu 5.4.0-6ubuntu1~16.04.9) 5.4.0 20160609"

2. MIPS assembly language for the second code

.file   1 ""
        .section .mdebug.abi32
        .previous
        .nan    legacy
        .module fp=32
        .module nooddspreg
        .abicalls
        .rdata
        .align  2
$LC0:
        .ascii  "%d\000"
        .align  2
$LC1:
        .ascii  "%d=>%d\000"
        .text
        .align  2
        .globl  main
        .set    nomips16
        .set    nomicromips
        .ent    main
        .type   main, @function
main:
        .frame  $fp,88,$31              # vars= 56, regs= 2/0, args= 16, gp= 8
        .mask   0xc0000000,-4
        .fmask  0x00000000,0
        .set    noreorder
        .cpload $25
        .set    nomacro
        addiu   $sp,$sp,-88
        sw      $31,84($sp)
        sw      $fp,80($sp)
        move    $fp,$sp
        .cprestore      16
        movz    $31,$31,$0
        sw      $0,24($fp)
        b       $L2
        nop

$L3:
        addiu   $3,$fp,36
        lw      $2,24($fp)
        nop
        sll     $2,$2,2
        addu    $2,$3,$2
        move    $5,$2
        lw      $2,%got($LC0)($28)
        nop
        addiu   $4,$2,%lo($LC0)
        lw      $2,%call16(__isoc99_scanf)($28)
        nop
        move    $25,$2
        .reloc  1f,R_MIPS_JALR,__isoc99_scanf
1:      jalr    $25
        nop

        lw      $28,16($fp)
        lw      $2,24($fp)
        nop
        addiu   $2,$2,1
        sw      $2,24($fp)
$L2:
        lw      $2,24($fp)
        nop
        slt     $2,$2,10
        bne     $2,$0,$L3
        nop

        lw      $2,36($fp)
        nop
        sw      $2,28($fp)
        li      $2,1                    # 0x1
        sw      $2,24($fp)
        b       $L4
        nop

$L6:
        lw      $2,24($fp)
        nop
        sll     $2,$2,2
        addiu   $3,$fp,24
        addu    $2,$3,$2
        lw      $3,12($2)
        lw      $2,28($fp)
        nop
        slt     $2,$3,$2
        beq     $2,$0,$L5
        nop

        lw      $2,24($fp)
        nop
        sll     $2,$2,2
        addiu   $3,$fp,24
        addu    $2,$3,$2
        lw      $2,12($2)
        nop
        sw      $2,28($fp)
        lw      $2,24($fp)
        nop
        sw      $2,32($fp)
$L5:
        lw      $2,24($fp)
        nop
        addiu   $2,$2,1
        sw      $2,24($fp)
$L4:
        lw      $2,24($fp)
        nop
        slt     $2,$2,10
        bne     $2,$0,$L6
        nop

        lw      $6,28($fp)
        lw      $5,32($fp)
        lw      $2,%got($LC1)($28)
        nop
        addiu   $4,$2,%lo($LC1)
        lw      $2,%call16(printf)($28)
        nop
        move    $25,$2
        .reloc  1f,R_MIPS_JALR,printf
1:      jalr    $25
        nop

        lw      $28,16($fp)
        move    $2,$0
        move    $sp,$fp
        lw      $31,84($sp)
        lw      $fp,80($sp)
        addiu   $sp,$sp,88
        j       $31
        nop

        .set    macro
        .set    reorder
        .end    main
        .size   main, .-main
        .ident  "GCC: (Ubuntu 5.4.0-6ubuntu1~16.04.9) 5.4.0 20160609"

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