Can you translate this C code into MIPS assembly? #include <stdio.h> #include <math.h> #include <stdlib.h> double...

Can you translate this C code into MIPS assembly?

#include <stdio.h>
#include <math.h>
#include <stdlib.h>

double fact (double);

void
main ()
{
int angle_in_D;
double term, angle_in_R;
float sine = 0;
unsigned int i = 1;
double sign = 1;
int n = 1000;

printf ("Please enter an angle (Unit: Degree): ");
scanf ("%d", &angle_in_D);

angle_in_R = angle_in_D * M_PI / 180.0;
do
{
term = pow(-1,(i-1)) * pow (angle_in_R, (2*i - 1)) / fact (2*i - 1);
sine = sine + term;
i++;
}
while (i <= n);
printf ("The value sine of angle %d is Sin(%d) = %f\n", angle_in_D,
angle_in_D, sine);

}

double
fact (double x)
{
double fac = 1;
for (double i = 1; i <= x; i++)
{
fac = fac * i;
}
return fac;
}

I coded and tested the C code and seem like it's working well. NOt sure if there's any logical error, but when I tested for popular cases, it's correct

Expert Solution

$LC1:
        .ascii  "%d\000"
$LC6:
        .ascii  "The value sine of angle %d is Sin(%d) = %f\012\000"
main:
        addiu   $sp,$sp,-136
        sw      $31,84($sp)
        sw      $23,80($sp)
        sw      $22,76($sp)
        sw      $21,72($sp)
        sw      $20,68($sp)
        sw      $19,64($sp)
        sw      $18,60($sp)
        sw      $17,56($sp)
        sw      $16,52($sp)
        swc1    $f30,132($sp)
        swc1    $f31,128($sp)
        swc1    $f28,124($sp)
        swc1    $f29,120($sp)
        swc1    $f26,116($sp)
        swc1    $f27,112($sp)
        swc1    $f24,108($sp)
        swc1    $f25,104($sp)
        swc1    $f22,100($sp)
        swc1    $f23,96($sp)
        swc1    $f20,92($sp)
        swc1    $f21,88($sp)
        addiu   $5,$sp,32
        lui     $4,%hi($LC1)
        addiu   $4,$4,%lo($LC1)
        jal     scanf
        nop

        lwc1    $f0,32($sp)
        nop
        cvt.d.w $f0,$f0
        lui     $2,%hi($LC2)
        lwc1    $f26,%lo($LC2+4)($2)
        nop
        lwc1    $f27,%lo($LC2)($2)
        nop
        mul.d   $f0,$f0,$f26
        lui     $2,%hi($LC3)
        lwc1    $f26,%lo($LC3+4)($2)
        nop
        lwc1    $f27,%lo($LC3)($2)
        nop
        div.d   $f0,$f0,$f26
        swc1    $f0,44($sp)
        swc1    $f1,40($sp)
        li      $17,1                 # 0x1
        move    $16,$0
        mtc1    $0,$f24
        lui     $2,%hi($LC4)
        lwc1    $f0,%lo($LC4+4)($2)
        nop
        lwc1    $f1,%lo($LC4)($2)
        nop
        mfc1    $21,$f0
        mfc1    $20,$f1
        lui     $3,%hi($LC5)
        lwc1    $f28,%lo($LC5+4)($3)
        nop
        lwc1    $f29,%lo($LC5)($3)
        mtc1    $21,$f0
        nop
        mtc1    $20,$f1
        nop
        mfc1    $23,$f0
        mfc1    $22,$f1
        lui     $18,%hi($LC0)
        lwc1    $f26,%lo($LC0+4)($18)
        nop
        lwc1    $f27,%lo($LC0)($18)
        nop
        mov.d   $f30,$f26
        li      $19,1000                    # 0x3e8
$L7:
        mtc1    $16,$f0
        bgez    $16,$L2
        cvt.d.w $f14,$f0

        mtc1    $21,$f0
        nop
        mtc1    $20,$f1
        nop
        add.d   $f14,$f14,$f0
$L2:
        mov.d   $f12,$f28
        jal     pow
        nop

        mov.d   $f22,$f0
        mtc1    $17,$f0
        bgez    $17,$L3
        cvt.d.w $f20,$f0

        mtc1    $23,$f0
        nop
        mtc1    $22,$f1
        nop
        add.d   $f20,$f20,$f0
$L3:
        mov.d   $f14,$f20
        lwc1    $f12,44($sp)
        nop
        lwc1    $f13,40($sp)
        jal     pow
        nop

        c.le.d  $f26,$f20
        nop
        bc1f    $L12
        mul.d   $f0,$f22,$f0

        lwc1    $f4,%lo($LC0+4)($18)
        nop
        lwc1    $f5,%lo($LC0)($18)
        nop
        mov.d   $f2,$f4
$L6:
        mul.d   $f4,$f4,$f2
        add.d   $f2,$f2,$f30
        c.le.d  $f2,$f20
        nop
        bc1t    $L6
        nop

        b       $L14
        div.d   $f4,$f0,$f4

$L12:
        lwc1    $f4,%lo($LC0+4)($18)
        nop
        lwc1    $f5,%lo($LC0)($18)
        nop
        div.d   $f4,$f0,$f4
$L14:
        cvt.d.s $f24,$f24
        add.d   $f24,$f4,$f24
        cvt.s.d $f24,$f24
        addiu   $16,$16,1
        bne     $16,$19,$L7
        addiu   $17,$17,2

        cvt.d.s $f24,$f24
        swc1    $f24,20($sp)
        swc1    $f25,16($sp)
        lw      $6,32($sp)
        nop
        move    $5,$6
        lui     $4,%hi($LC6)
        addiu   $4,$4,%lo($LC6)
        jal     printf
        nop

        move    $2,$0
        lw      $31,84($sp)
        lw      $23,80($sp)
        lw      $22,76($sp)
        lw      $21,72($sp)
        lw      $20,68($sp)
        lw      $19,64($sp)
        lw      $18,60($sp)
        lw      $17,56($sp)
        lw      $16,52($sp)
        lwc1    $f30,132($sp)
        nop
        lwc1    $f31,128($sp)
        lwc1    $f28,124($sp)
        nop
        lwc1    $f29,120($sp)
        lwc1    $f26,116($sp)
        nop
        lwc1    $f27,112($sp)
        lwc1    $f24,108($sp)
        nop
        lwc1    $f25,104($sp)
        lwc1    $f22,100($sp)
        nop
        lwc1    $f23,96($sp)
        lwc1    $f20,92($sp)
        nop
        lwc1    $f21,88($sp)
        j       $31
        addiu   $sp,$sp,136

fact(double):
        lui     $2,%hi($LC0)
        lwc1    $f0,%lo($LC0+4)($2)
        nop
        lwc1    $f1,%lo($LC0)($2)
        nop
        c.le.d  $f0,$f12
        nop
        bc1f    $L23
        mov.d   $f2,$f0

        mov.d   $f4,$f0
$L18:
        mul.d   $f0,$f0,$f2
        add.d   $f2,$f2,$f4
        c.le.d  $f2,$f12
        nop
        bc1t    $L18
        nop

        j       $31
        nop

$L23:
        lwc1    $f0,%lo($LC0+4)($2)
        nop
        lwc1    $f1,%lo($LC0)($2)
        j       $31
        nop

$LC0:
        .word   1072693248
        .word   0
$LC2:
        .word   1074340347
        .word   1413754136
$LC3:
        .word   1080459264
        .word   0
$LC4:
        .word   1106247680
        .word   0
$LC5:
        .word   -1074790400
        .word   0

venereology answered 2 years ago

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