avr-fw-modules/core/include/hw+/registers.h

#pragma once

#include <stdint.h>

union byte
{
	uint8_t byte;
	struct
	{
		uint8_t	bit0:1;
		uint8_t	bit1:1;
		uint8_t	bit2:1;
		uint8_t	bit3:1;
		uint8_t	bit4:1;
		uint8_t	bit5:1;
		uint8_t	bit6:1;
		uint8_t	bit7:1;
	};
} ;

typedef union byte BYTE;