// TCC is used to compile the following C code to a x86 windows exe
//
// - #include directives aren't supported
// - floating point values aren't supported
// - large long long values will print incorrectly
// - there are likely many other issues

int printf(const char *_Format,...);
int sprintf(char *_Dest,const char *_Format,...);

typedef int (*AddFunc)(int a, int b);

int SimpleAdd(int a, int b)
{
    return a + b;
}

int main()
{
    printf("main() address: 0x%p\n", &main);
    printf("SimpleAdd() address: 0x%p\n", &SimpleAdd);
    
    AddFunc func = &SimpleAdd;
    
    int addr = (int)&SimpleAdd;
    AddFunc func2 = (AddFunc)addr;
    
    int v1 = 500;
    int v2 = 300;
    unsigned long long val1 = 33333333333333;
    unsigned long long val2 = 2;
    
    char buff[256];
    sprintf(buff, "500+300=%d 99+1=%d 33333333333333*2=%llu", func(v1, v2), func2(99, 1), val1 * val2);
    
    printf("Hello C! %s\n", buff);
    
    unsigned char byte1 = *(((unsigned char*)&main) + 0);
    unsigned char byte2 = *(((unsigned char*)&main) + 1);
    unsigned char byte3 = *(((unsigned char*)&main) + 2);
    printf("First 3 bytes of main(): 0x%x 0x%x 0x%x\n", byte1, byte2, byte3);
    printf("- The result should be 0x55 0x89 0xE5 which is PUSH EBP / MOV EBP, ESP\n");
    
    return 0;
}