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/*****************************************************************************
*
* includes/concept.h
*
* Corvus Concept driver
*
* Raphael Nabet, 2003
*
****************************************************************************/
#ifndef CONCEPT_H_
#define CONCEPT_H_
#include "machine/6522via.h"
#include "machine/wd17xx.h"
/* keyboard interface */
enum
{
KeyQueueSize = 32,
MaxKeyMessageLen = 1
};
typedef struct
{
read8_space_func reg_read;
write8_space_func reg_write;
read8_space_func rom_read;
write8_space_func rom_write;
} expansion_slot_t;
class concept_state : public driver_device
{
public:
concept_state(const machine_config &mconfig, device_type type, const char *tag)
: driver_device(mconfig, type, tag),
m_videoram(*this,"videoram") { }
required_shared_ptr<UINT16> m_videoram;
UINT8 m_pending_interrupts;
char m_clock_enable;
char m_clock_address;
UINT8 m_KeyQueue[KeyQueueSize];
int m_KeyQueueHead;
int m_KeyQueueLen;
UINT32 m_KeyStateSave[3];
UINT8 m_fdc_local_status;
UINT8 m_fdc_local_command;
expansion_slot_t m_expansion_slots[4];
DECLARE_READ16_MEMBER(concept_io_r);
DECLARE_WRITE16_MEMBER(concept_io_w);
DECLARE_WRITE8_MEMBER(concept_fdc_reg_w);
DECLARE_READ8_MEMBER(concept_hdc_reg_r);
DECLARE_WRITE8_MEMBER(concept_hdc_reg_w);
virtual void machine_start();
virtual void video_start();
};
/*----------- defined in machine/concept.c -----------*/
extern const via6522_interface concept_via6522_intf;
extern const wd17xx_interface concept_wd17xx_interface;
SCREEN_UPDATE_IND16(concept);
INTERRUPT_GEN( concept_interrupt );
#endif /* CONCEPT_H_ */
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