Write an assembly language function int toKilometers int mil

Write an assembly language function int toKilometers (int miles) that takes distance as miles and returns the distance in kilometers.

Solution

.LC0:
        .string \"Enter miles\"
.LC1:
        .string \"%d\"
.LC3:
        .string \"%d miles=%d kilometers\"
main:
        push    rbp
        mov     rbp, rsp
        sub     rsp, 16
        mov     edi, OFFSET FLAT:.LC0
        mov     eax, 0
        call    printf
        lea     rax, [rbp-8]
        mov     rsi, rax
        mov     edi, OFFSET FLAT:.LC1
        mov     eax, 0
        call    scanf
        mov     eax, DWORD PTR [rbp-8]
        cvtsi2sd        xmm0, eax
        movsd   xmm1, QWORD PTR .LC2[rip]
        mulsd   xmm0, xmm1
        cvttsd2si       eax, xmm0
        mov     DWORD PTR [rbp-4], eax
        mov     eax, DWORD PTR [rbp-8]
        mov     edx, DWORD PTR [rbp-4]
        mov     esi, eax
        mov     edi, OFFSET FLAT:.LC3
        mov     eax, 0
        call    printf
        mov     eax, 0
        leave
        ret
.LC2:
        .long   3229815407
        .long   1073324490