#ifndef MK20DX256_REG_REGDEFS_H
#define MK20DX256_REG_REGDEFS_H

#include <stdint.h>

#define REG_8(a) (*(volatile uint8_t *)(a))
#define REG_16(a) (*(volatile uint16_t *)(a))
#define REG_32(a) (*(volatile uint32_t *)(a))

#define REG_8_M(start, len) ((uint8_t)(BITS(len) << (start)))
#define REG_16_M(start, len) ((uint16_t)(BITS(len) << (start)))
#define REG_32_M(start, len) ((uint32_t)(BITS(len) << (start)))

#define BV(b) (1 << (b))
#define BITS(n) (0xffffffff >> (32 - (n)))

#define GET_BIT(reg, bit) (!!((reg) & BV(bit)))
#define GET_BITS(reg, offset) (((reg) & (offset ## _M)) >> (offset))

#define SET_BIT(reg, bit) ((reg) |= BV(bit))
#define UNSET_BIT(reg, bit) ((reg) &= ~BV(bit))
#define TOGGLE_BIT(reg, bit) ((reg) ^= BV(bit))

#define SET_MASKED(reg, mask, bits) ((reg) = ((reg) & ~(mask)) | ((bits) & (mask)))

#define WAIT_BIT_UNSET(reg, bit) do { } while (GET_BIT(reg, bit))
#define WAIT_BIT_SET(reg, bit) do { } while (!GET_BIT(reg, bit))

#endif /* MK20DX256_REG_REGDEFS_H */