#ifndef _MCU_H_
#define _MCU_H_

#include "Ch559.h"

#define st(x)      do { x } while (__LINE__ == -1)

#define HAL_ENABLE_INTERRUPTS()         st( EA = 1; )
#define HAL_DISABLE_INTERRUPTS()        st( EA = 0; )
#define HAL_INTERRUPTS_ARE_ENABLED()    (EA)

typedef unsigned char halIntState_t;
#define HAL_ENTER_CRITICAL_SECTION(x)   st( x = EA;  HAL_DISABLE_INTERRUPTS(); )
#define HAL_EXIT_CRITICAL_SECTION(x)    st( EA = x; )
#define HAL_CRITICAL_STATEMENT(x)       st( halIntState_t _s; HAL_ENTER_CRITICAL_SECTION(_s); x; HAL_EXIT_CRITICAL_SECTION(_s); )

#endif