.386
.model flat, stdcall
option casemap : none

include \masm32\include\kernel32.inc
include \masm32\include\masm32.inc
include \masm32\include\msvcrt.inc
includelib \masm32\lib\kernel32.lib
includelib \masm32\lib\masm32.lib
includelib \masm32\lib\msvcrt.lib
include \masm32\macros\macros.asm
.data
    fstart dq 10.0
    a dq 0.0
    b dq 100.0
    mid dq 0.0
    num dq 32.0
    n dd 5
    m dd 0
    eps dq 0.00001
    two dq 2.0
    zero dq 0.0
    one dq 1.0
    res dq 1.0
    x dq 0.0
    resMul dq 1.0

.code
fun proc
    fstp x
    fld one
    fstp res
    mov eax, n
    mov m, eax
cicle:
    mov eax, m
    cmp eax, 0
    je exitFun
    mov ebx, 2
    mov edx, 0
    div ebx
    cmp edx, 0
    jne notzero
    mov m, eax
    fld x
    fmul x
    fstp x
    jmp cicle
notzero:
    mov eax, m
    sub eax, 1
    mov m, eax
    fld res
    fmul x
    fstp res
    jmp cicle
exitFun:
    fld num
    fsub res
    fstp res
    ret
    fun endp
start:
    finit
cicleMain:
    fld one
    fstp resMul
    fld b
    fsub a
    fcom eps
    fstsw ax
    sahf
    jb close
    fld b
    fadd a
    fdiv two
    fstp mid
    fld mid
    call fun
    ffree st
    fld resMul
    fmul res
    fstp resMul
    fld a
    call fun
    ffree st
    fld resMul
    fmul res
    fst resMul
    fcom zero
    fstsw ax
    sahf
    ja positive
    fld mid
    fstp b
    ffree st
    jmp cicleMain
positive:
    fld mid
    fstp a
    ffree st
    jmp cicleMain
close:
    printf("%llf", mid)
    xor eax, eax
    ret
    end start