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/**********************************************************************
MOS 6526/8520 Complex Interface Adapter emulation
Copyright MESS Team.
Visit http://mamedev.org for licensing and usage restrictions.
**********************************************************************
_____ _____
Vss 1 |* \_/ | 40 CNT
PA0 2 | | 39 SP
PA1 3 | | 38 RS0
PA2 4 | | 37 RS1
PA3 5 | | 36 RS2
PA4 6 | | 35 RS3
PA5 7 | | 34 _RES
PA6 8 | | 33 DB0
PA7 9 | | 32 DB1
PB0 10 | MOS6526 | 31 DB2
PB1 11 | MOS8520 | 30 DB3
PB2 12 | | 29 DB4
PB3 13 | | 28 DB5
PB4 14 | | 27 DB6
PB5 15 | | 26 DB7
PB6 16 | | 25 phi2
PB7 17 | | 24 _FLAG
_PC 18 | | 23 _CS
TOD 19 | | 22 R/W
Vcc 20 |_____________| 21 _IRQ
**********************************************************************/
#ifndef __6526CIA_H__
#define __6526CIA_H__
#include "devcb.h"
/***************************************************************************
MACROS
***************************************************************************/
DECLARE_LEGACY_DEVICE(MOS6526R1, cia6526r1);
DECLARE_LEGACY_DEVICE(MOS6526R2, cia6526r2);
DECLARE_LEGACY_DEVICE(MOS8520, cia8520);
#define MDRV_MOS6526R1_ADD(_tag, _clock, _config) \
MDRV_DEVICE_ADD(_tag, MOS6526R1, _clock) \
MDRV_DEVICE_CONFIG(_config)
#define MDRV_MOS6526R2_ADD(_tag, _clock, _config) \
MDRV_DEVICE_ADD(_tag, MOS6526R2, _clock) \
MDRV_DEVICE_CONFIG(_config)
#define MDRV_MOS8520_ADD(_tag, _clock, _config) \
MDRV_DEVICE_ADD(_tag, MOS8520, _clock) \
MDRV_DEVICE_CONFIG(_config)
#define MOS6526_INTERFACE(name) \
const mos6526_interface (name)=
#define MOS8520_INTERFACE(name) \
const mos6526_interface (name)=
/***************************************************************************
TYPE DEFINITIONS
***************************************************************************/
typedef struct _mos6526_interface mos6526_interface;
struct _mos6526_interface
{
int tod_clock;
devcb_write_line out_irq_func;
devcb_write_line out_pc_func;
devcb_write_line out_cnt_func;
devcb_write_line out_sp_func;
devcb_read8 in_pa_func;
devcb_write8 out_pa_func;
devcb_read8 in_pb_func;
devcb_write8 out_pb_func;
};
/***************************************************************************
FUNCTION PROTOTYPES
***************************************************************************/
/* register access */
READ8_DEVICE_HANDLER( mos6526_r );
WRITE8_DEVICE_HANDLER( mos6526_w );
/* port access */
READ8_DEVICE_HANDLER( mos6526_pa_r );
READ8_DEVICE_HANDLER( mos6526_pb_r );
/* interrupt request */
READ_LINE_DEVICE_HANDLER( mos6526_irq_r );
/* time of day clock */
WRITE_LINE_DEVICE_HANDLER( mos6526_tod_w );
/* serial counter */
READ_LINE_DEVICE_HANDLER( mos6526_cnt_r );
WRITE_LINE_DEVICE_HANDLER( mos6526_cnt_w );
/* serial port */
READ_LINE_DEVICE_HANDLER( mos6526_sp_r );
WRITE_LINE_DEVICE_HANDLER( mos6526_sp_w );
/* flag */
WRITE_LINE_DEVICE_HANDLER( mos6526_flag_w );
/* port mask */
void cia_set_port_mask_value(running_device *device, int port, int data);
#endif /* __6526CIA_H__ */
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