#pragma once

#include <stdint.h>

/** Must call first **/
void paracomm_init();

/** Sends a single byte.
 * Returns: 0 if no error, non-0 otherwise.
 */
int paracomm_send(uint8_t b);

/** Receive some bytes.
 * Returns: number of bytes copied
 */
uint8_t paracomm_recv(uint8_t* buf, uint8_t size);

/** Call after reading a nibble from the port */
void paracomm_feed(uint8_t n);

/** Yields the next byte to send out the port */
uint8_t paracomm_nextbyte();

/** Returns non-zero if busy */
uint8_t paracomm_busy();