a20.c File Reference

#include "boot.h"

Go to the source code of this file.

Macros
#define	MAX_8042_LOOPS   100000
#define	MAX_8042_FF   32
#define	A20_TEST_ADDR   (4*0x80)
#define	A20_TEST_SHORT   32
#define	A20_TEST_LONG   2097152 /* 2^21 */
#define	A20_ENABLE_LOOPS   255 /* Number of times to try */

Functions
int	enable_a20 (void)

Macro Definition Documentation

#define A20_ENABLE_LOOPS   255 /* Number of times to try */

Definition at line 128 of file a20.c.

#define A20_TEST_ADDR   (4*0x80)

Definition at line 52 of file a20.c.

#define A20_TEST_LONG   2097152 /* 2^21 */

Definition at line 54 of file a20.c.

#define A20_TEST_SHORT   32

Definition at line 53 of file a20.c.

#define MAX_8042_FF   32

Definition at line 19 of file a20.c.

#define MAX_8042_LOOPS   100000

Definition at line 18 of file a20.c.

Function Documentation

int enable_a20

(

void

)

Definition at line 130 of file a20.c.