Output a whole number in assembly

Question

My code is about dividing a number but it results a float example 1.206. The resut I want is only 1. Im just new in assembly so please help me guys thanks.

%define num1    dword[ebp+8]
%define result  dword[ebp+12]

segment .bss
segment .data
temp dq 365.0

segment .text
    global _Area
_Area:

    push ebp
    mov ebp, esp
    push ebx

    fild num1       
    fld1    
    fmulp st1

    fdiv qword[temp]            
    mov ebx, result
    fstp qword[ebx]

    mov eax, 0
    pop ebx
    mov esp, ebp
    pop ebp
    ret

So use integer division: `div`. See the [x86 tag wiki](http://stackoverflow.com/tags/x86/info) for links to manuals. — Peter Cordes, Mar 03 '16 at 10:06

score 0 · Answer 1 · edited May 23 '17 at 10:28

0

FIST/FISTP is the FPU command to convert a float to an int https://courses.engr.illinois.edu/ece390/archive/spr2002/books/labmanual/inst-ref-fild.html

See also this thread What is the fastest way to convert float to int on x86

edited May 23 '17 at 10:28

Community

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answered Mar 03 '16 at 09:55

ralf htp

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Output a whole number in assembly

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