#define P8255_1_CNT_PORT	0x303
#define	P8255_1_A_PORT		0x300
#define P8255_1_B_PORT		0x301
#define	P8255_1_C_PORT		0x302
#define P8255_2_CNT_PORT	0x307
#define	P8255_2_A_PORT		0x304
#define P8255_2_B_PORT		0x305
#define	P8255_2_C_PORT		0x306
#define P8253_CNT_PORT		0x30f
#define	P8253_TIMER_0		0x30c
#define TRUE			1
#define FALSE			0
