mc6821.h File Reference

Go to the source code of this file.

Data Structures
struct	pia

Macros
#define	PIA_REG_PADWIDTH   255
#define	ppra   ua.pra
#define	pddra   ua.ddra
#define	pprb   ub.prb
#define	pddrb   ub.ddrb
#define	PIA_C1_ENABLE_IRQ   (1<<0)
#define	PIA_C1_LOW_TO_HIGH   (1<<1)
#define	PIA_DDR   (1<<2)
#define	PIA_IRQ2   (1<<6)
#define	PIA_IRQ1   (1<<7)

Macro Definition Documentation

#define pddra   ua.ddra

Definition at line 41 of file mc6821.h.

#define pddrb   ub.ddrb

Definition at line 43 of file mc6821.h.

#define PIA_C1_ENABLE_IRQ   (1<<0)

Definition at line 45 of file mc6821.h.

#define PIA_C1_LOW_TO_HIGH   (1<<1)

Definition at line 46 of file mc6821.h.

#define PIA_DDR   (1<<2)

Definition at line 47 of file mc6821.h.

#define PIA_IRQ1   (1<<7)

Definition at line 49 of file mc6821.h.

#define PIA_IRQ2   (1<<6)

Definition at line 48 of file mc6821.h.

#define PIA_REG_PADWIDTH   255

Definition at line 20 of file mc6821.h.

#define ppra   ua.pra

Definition at line 40 of file mc6821.h.

#define pprb   ub.prb

Definition at line 42 of file mc6821.h.