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// license:BSD-3-Clause
// copyright-holders:Curt Coder
#ifndef MAME_INCLUDES_MPZ80_H
#define MAME_INCLUDES_MPZ80_H
#pragma once
#include "bus/s100/s100.h"
#include "cpu/z80/z80.h"
#include "machine/ram.h"
#define Z80_TAG "17a"
#define AM9512_TAG "17d"
#define S100_TAG "s100"
class mpz80_state : public driver_device
{
public:
mpz80_state(const machine_config &mconfig, device_type type, const char *tag)
: driver_device(mconfig, type, tag),
m_maincpu(*this, Z80_TAG),
m_ram(*this, RAM_TAG),
m_s100(*this, S100_TAG),
m_rom(*this, Z80_TAG),
m_map_ram(*this, "map_ram", 0x200, ENDIANNESS_LITTLE),
m_16c(*this, "16C"),
m_nmi(1),
m_pint(1),
m_int_pend(0),
m_pretrap(0),
m_trap(0),
m_trap_reset(0),
m_trap_void(1),
m_trap_halt(1),
m_trap_int(1),
m_trap_stop(1),
m_trap_aux(1)
{ }
void mpz80(machine_config &config);
protected:
virtual void machine_start() override;
virtual void machine_reset() override;
private:
required_device<cpu_device> m_maincpu;
required_device<ram_device> m_ram;
required_device<s100_bus_device> m_s100;
required_memory_region m_rom;
memory_share_creator<uint8_t> m_map_ram;
required_ioport m_16c;
inline offs_t get_address(offs_t offset);
inline offs_t get_io_address(offs_t offset);
inline void check_traps();
inline void check_interrupt();
uint8_t mmu_r(offs_t offset);
void mmu_w(offs_t offset, uint8_t data);
uint8_t mmu_io_r(offs_t offset);
void mmu_io_w(offs_t offset, uint8_t data);
uint8_t trap_addr_r();
uint8_t keyboard_r();
uint8_t switch_r();
uint8_t status_r();
void disp_seg_w(uint8_t data);
void disp_col_w(uint8_t data);
void task_w(uint8_t data);
void mask_w(uint8_t data);
DECLARE_WRITE_LINE_MEMBER( s100_pint_w );
DECLARE_WRITE_LINE_MEMBER( s100_nmi_w );
// memory state
uint32_t m_addr = 0;
uint8_t m_task = 0;
uint8_t m_mask = 0;
// interrupt state
int m_nmi;
int m_pint;
int m_int_pend;
// trap state
uint8_t m_pretrap_addr;
uint8_t m_trap_addr;
uint8_t m_status;
uint16_t m_trap_start;
int m_pretrap;
int m_trap;
int m_trap_reset;
int m_trap_void;
int m_trap_halt;
int m_trap_int;
int m_trap_stop;
int m_trap_aux;
void init_mpz80();
void mpz80_io(address_map &map);
void mpz80_mem(address_map &map);
};
#endif // MAME_INCLUDES_MPZ80_H
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