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// license:BSD-3-Clause
// copyright-holders:Fabio Priuli,Pierpaolo Prazzoli,Grazvydas Ignotas
#ifndef MAME_BUS_MEGADRIVE_SVP_H
#define MAME_BUS_MEGADRIVE_SVP_H
#include "md_slot.h"
#include "cpu/ssp1601/ssp1601.h"
//**************************************************************************
// TYPE DEFINITIONS
//**************************************************************************
// ======================> md_rom_svp_device
class md_rom_svp_device : public device_t,
public device_md_cart_interface
{
public:
// construction/destruction
md_rom_svp_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
protected:
md_rom_svp_device(const machine_config &mconfig, device_type type, const char *tag, device_t *owner, uint32_t clock);
virtual void device_start() override;
// device-level overrides
virtual void device_add_mconfig(machine_config &config) override;
virtual ioport_constructor device_input_ports() const override;
virtual void set_bank_to_rom(const char *banktag, uint32_t offset) override;
// reading and writing
virtual DECLARE_READ16_MEMBER(read) override;
virtual DECLARE_WRITE16_MEMBER(write) override;
virtual DECLARE_READ16_MEMBER(read_a15) override;
virtual DECLARE_WRITE16_MEMBER(write_a15) override;
virtual int read_test() override;
virtual DECLARE_READ16_MEMBER(rom_read1);
virtual DECLARE_READ16_MEMBER(rom_read2);
virtual DECLARE_READ16_MEMBER(read_pm0);
virtual DECLARE_READ16_MEMBER(read_pm1);
virtual DECLARE_READ16_MEMBER(read_pm2);
virtual DECLARE_READ16_MEMBER(read_pm4);
virtual DECLARE_READ16_MEMBER(read_xst);
virtual DECLARE_READ16_MEMBER(read_pmc);
virtual DECLARE_READ16_MEMBER(read_al);
virtual DECLARE_WRITE16_MEMBER(write_pm0);
virtual DECLARE_WRITE16_MEMBER(write_pm1);
virtual DECLARE_WRITE16_MEMBER(write_pm2);
virtual DECLARE_WRITE16_MEMBER(write_pm4);
virtual DECLARE_WRITE16_MEMBER(write_xst);
virtual DECLARE_WRITE16_MEMBER(write_pmc);
virtual DECLARE_WRITE16_MEMBER(write_al);
private:
required_device<device_t> m_svp;
required_ioport m_test_ipt;
uint32_t pm_io(int reg, int write, uint32_t d);
uint32_t m_pmac_read[6]; // read modes/addrs for PM0-PM5
uint32_t m_pmac_write[6]; // write ...
PAIR m_pmc;
uint32_t m_emu_status;
uint16_t m_xst; // external status, mapped at a15000 and a15002 on 68k side.
uint16_t m_xst2; // status of XST (bit1 set when 68k writes to XST)
uint8_t m_iram[0x800]; // IRAM (0-0x7ff)
uint8_t m_dram[0x20000]; // [0x20000];
void md_svp_ext_map(address_map &map);
void md_svp_ssp_map(address_map &map);
};
// device type definition
DECLARE_DEVICE_TYPE(MD_ROM_SVP, md_rom_svp_device)
#endif // MAME_BUS_MEGADRIVE_SVP_H
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