summaryrefslogblamecommitdiffstatshomepage
path: root/src/mame/machine/asic65.h
blob: 61fdac9d26fc1ff40f9d2d5a999b749620404ed5 (plain) (tree)
1
2
3
4
5
6
7
8
9

                                




                                       

                             
 
            
 


                                  




                         
 


                                     
                                                                                                          




                                                           
                                                                                                  
 
                                
                                                        
 
                                   


                                             
 



                              
 



                                            
 

                                                  

                                 

                                             
                                                                         
                                                                                                       

        







                            

                                        
                                                  





                      

                     

                                            

  
                                          
 
                               
// license:BSD-3-Clause
// copyright-holders:Aaron Giles
/*************************************
 *
 *  Implementation of ASIC65
 *
 *************************************/
#ifndef MAME_MACHINE_ASIC65_H
#define MAME_MACHINE_ASIC65_H

#pragma once

#include "cpu/tms32010/tms32010.h"

enum {
	ASIC65_STANDARD,
	ASIC65_STEELTAL,
	ASIC65_GUARDIANS,
	ASIC65_ROMBASED
};

class asic65_device : public device_t
{
public:
	asic65_device(const machine_config &mconfig, const char *tag, device_t *owner, u32 clock, u8 type)
		: asic65_device(mconfig, tag, owner, clock)
	{
		set_type(type);
	}

	asic65_device(const machine_config &mconfig, const char *tag, device_t *owner, u32 clock);

	// configuration helpers
	void set_type(u8 type) { m_asic65_type = type; }

	void reset_line(int state);
	void data_w(offs_t offset, u16 data);
	u16 read();
	u16 io_r();

	void m68k_w(u16 data);
	u16 m68k_r();
	void stat_w(u16 data);
	u16 stat_r();

	enum
	{
		TIMER_M68K_ASIC65_DEFERRED_W
	};

	void asic65_io_map(address_map &map);
	void asic65_program_map(address_map &map);
protected:
	// device-level overrides
	virtual void device_start() override;
	virtual void device_reset() override;
	virtual void device_add_mconfig(machine_config &config) override;
	virtual void device_timer(emu_timer &timer, device_timer_id id, int param, void *ptr) override;

private:
	u8   m_asic65_type;
	int  m_command;
	u16  m_param[32];
	u16  m_yorigin;
	u8   m_param_index;
	u8   m_result_index;
	u8   m_reset_state;
	u8   m_last_bank;

	/* ROM-based interface states */
	required_device<tms32010_device> m_ourcpu;
	u8   m_tfull;
	u8   m_68full;
	u8   m_cmd;
	u8   m_xflg;
	u16  m_68data;
	u16  m_tdata;

	FILE * m_log;

	DECLARE_READ_LINE_MEMBER( get_bio );
};

DECLARE_DEVICE_TYPE(ASIC65, asic65_device)

#endif // MAME_MACHINE_ASIC65_H