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// license:BSD-3-Clause
// copyright-holders:hap
/***************************************************************************
Saitek OSA Module: Kasparov Sparc
***************************************************************************/
#ifndef MAME_BUS_SAITEKOSA_SPARC_H
#define MAME_BUS_SAITEKOSA_SPARC_H
#pragma once
#include "expansion.h"
#include "cpu/sparc/sparc.h"
DECLARE_DEVICE_TYPE(OSA_SPARC, saitekosa_sparc_device)
class saitekosa_sparc_device : public device_t, public device_saitekosa_expansion_interface
{
public:
// construction/destruction
saitekosa_sparc_device(const machine_config &mconfig, const char *tag, device_t *owner, const XTAL &clock);
// from host
virtual u8 data_r() override;
virtual void nmi_w(int state) override;
virtual void ack_w(int state) override;
protected:
virtual const tiny_rom_entry *device_rom_region() const override;
virtual ioport_constructor device_input_ports() const override;
virtual void device_add_mconfig(machine_config &config) override;
virtual void device_start() override;
virtual void device_reset() override;
private:
required_device<mb86930_device> m_maincpu;
required_region_ptr<u32> m_rom;
required_shared_ptr<u32> m_ram;
void debugger_map(address_map &map);
u32 rom_r(offs_t offset, u32 mem_mask) { return m_rom[offset & m_rom_mask]; }
u32 ram_r(offs_t offset, u32 mem_mask) { return m_ram[offset & m_ram_mask]; }
void ram_w(offs_t offset, u32 data, u32 mem_mask) { COMBINE_DATA(&m_ram[offset & m_ram_mask]); }
u32 host_io_r(offs_t offset, u32 mem_mask = ~0U);
void host_io_w(offs_t offset, u32 data, u32 mem_mask = ~0U);
void set_ram_mask(u8 n) { m_ram_mask = ((1 << n) / 4) - 1; }
u32 m_data_out = 0;
u32 m_rom_mask = 0;
u32 m_ram_mask = 0;
bool m_installed = false;
};
#endif // MAME_BUS_SAITEKOSA_SPARC_H
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