Macro definitions for the Kinetis Bit Manipulation Engine (BME) More...

Detailed Description

Macro definitions for the Kinetis Bit Manipulation Engine (BME)

Author: Joakim Nohlgård joaki.nosp@m.m.no.nosp@m.hlgar.nosp@m.d@ei.nosp@m.stec..nosp@m.se

Definition in file bme.h.

#include <stdint.h>

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Macros
#define	BITBAND_FUNCTIONS_PROVIDED 1
	Tell bit.h that we provide CPU specific bit manipulation functions.

#define	BME_AND_MASK (1 << 26)
	AND decoration bitmask.

#define	BME_OR_MASK (1 << 27)
	OR decoration bitmask.

#define	BME_XOR_MASK (3 << 26)
	XOR decoration bitmask.

#define	BME_LAC1_MASK(BIT) ((1 << 27) \| ((BIT) << 21))
	Load-and-clear 1 bit.

#define	BME_LAS1_MASK(BIT) ((3 << 26) \| ((BIT) << 21))
	Load-and-set 1 bit.

#define	BME_BF_MASK(bit, width) ((1 << 28) \| ((bit) << 23) \| (((width) - 1 ) << 19))
	Bit field extraction bitmask.

Functions
static volatile void *	bme_bf_addr (volatile void *ptr, uintptr_t bit, uintptr_t width)
	Bit field address macro.

static volatile uint32_t *	bme_bitfield32 (volatile uint32_t *ptr, uint8_t bit, uint8_t width)
	Access a bitfield (32 bit load/store)

static volatile uint16_t *	bme_bitfield16 (volatile uint16_t *ptr, uint8_t bit, uint8_t width)
	Access a bitfield (16 bit load/store)

static volatile uint8_t *	bme_bitfield8 (volatile uint8_t *ptr, uint8_t bit, uint8_t width)
	Access a bitfield (8 bit load/store)

static void	bit_set32 (volatile uint32_t *ptr, uint8_t bit)
	Set a single bit in the 32 bit word pointed to by `ptr`.

static void	bit_set16 (volatile uint16_t *ptr, uint8_t bit)
	Set a single bit in the 16 bit word pointed to by `ptr`.

static void	bit_set8 (volatile uint8_t *ptr, uint8_t bit)
	Set a single bit in the 8 bit byte pointed to by `ptr`.

static void	bit_clear32 (volatile uint32_t *ptr, uint8_t bit)
	Clear a single bit in the 32 bit word pointed to by `ptr`.

static void	bit_clear16 (volatile uint16_t *ptr, uint8_t bit)
	Clear a single bit in the 16 bit word pointed to by `ptr`.

static void	bit_clear8 (volatile uint8_t *ptr, uint8_t bit)
	Clear a single bit in the 8 bit byte pointed to by `ptr`.

Macros