#include "mc8051fun.h"

uint8_t getbutton_time = 100;
int getbutton(uint8_t pinval, uint8_t *button)
{
	if ( *button & 1 != pinval){
		*button += 2;
		if (*button > getbutton_time){
			*button = pinval;
			return pinval;
		}
		return -1;
	}
	*button = pinval;
	return -1;
}