#include <Windows.h>
#include <stdio.h>

#define EM(a) __asm __emit (a)

#define X64_Start_with_CS(_cs) \
{ \
    EM(0x6A) EM(_cs)                     /*  push   _cs                   */ \
    EM(0xE8) EM(0) EM(0) EM(0) EM(0)     /*  call   $+5                   */ \
    EM(0x83) EM(4) EM(0x24) EM(5)        /*  add    dword [esp], 5        */ \
    EM(0xCB)                             /*  retf                         */ \
}

#define X64_End_with_CS(_cs) \
{ \
    EM(0xE8) EM(0) EM(0) EM(0) EM(0)     /*  call   $+5                   */ \
    EM(0xC7) EM(0x44) EM(0x24) EM(4)     /*                               */ \
    EM(_cs) EM(0) EM(0) EM(0)            /*  mov    dword [rsp + 4], _cs  */ \
    EM(0x83) EM(4) EM(0x24) EM(0xD)      /*  add    dword [rsp], 0xD      */ \
    EM(0xCB)                             /*  retf                         */ \
}

#define X64_Start() X64_Start_with_CS(0x33)
#define X64_End() X64_End_with_CS(0x23)

#define EMIT(a) __asm __emit (a)
#define X64_Push(r) EM(0x48 | ((r) >> 3)) EM(0x50 | ((r) & 7))
#define X64_Pop(r) EMIT(0x48 | ((r) >> 3)) EMIT(0x58 | ((r) & 7))
#define REX_W EMIT(0x48) __asm

bool __fastcall CheckPassword2(DWORD password) {

    __asm {
        mov ebx, 0
    }

    X64_Start();

    EM(0x48) EM(0x89) EM(0xC8) EM(0x48) EM(0xC7) EM(0xC6) EM(0x68) EM(0x46) EM(0x34) EM(0x7A) EM(0x48) EM(0x39) EM(0xF0) EM(0x48) EM(0xC7) EM(0xC2) EM(0x01) EM(0x00) EM(0x00) EM(0x00) EM(0x48) EM(0x0F) EM(0x44) EM(0xDA)

    X64_End();

    bool result = false;

    __asm {
        mov dword ptr[result], ebx
    }

    return result;
}


bool __fastcall CheckPassword(DWORD password) {

    __asm {
        mov ebx, 0
    }

    X64_Start();

    EM(0x48) EM(0x89) EM(0xC8) EM(0x48) EM(0xC7) EM(0xC6) EM(0x58) EM(0x44) EM(0x70) EM(0x34) EM(0x48) EM(0x39) EM(0xF0) EM(0x48) EM(0xC7) EM(0xC2) EM(0x01) EM(0x00) EM(0x00) EM(0x00) EM(0x48) EM(0x0F) EM(0x44) EM(0xDA)

    X64_End();

    bool result = false;

    __asm {
        mov dword ptr [result], ebx
    }

    return result;
}

int main() {

    printf("Enter password: ");

    char password[255];
    scanf_s("%s", password);

    DWORD tmp, tmp2;
    RtlCopyMemory(&tmp, password, 4);
    RtlCopyMemory(&tmp2, password+4, 4);


    if (CheckPassword(tmp) && CheckPassword2(tmp2)) {
        printf("Good job!\n");
        system("pause");
        return 0;
    }

    printf("Nope\n");
    system("pause");
    return 0;
}