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// license:BSD-3-Clause
// copyright-holders:Olivier Galibert
/***************************************************************************
m4510.h
65ce02 with a mmu and a cia integrated
***************************************************************************/
#ifndef MAME_CPU_M6502_M4510_H
#define MAME_CPU_M6502_M4510_H
#pragma once
#include "m65ce02.h"
class m4510_device : public m65ce02_device {
public:
m4510_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
virtual std::unique_ptr<util::disasm_interface> create_disassembler() override;
virtual void do_exec_full() override;
virtual void do_exec_partial() override;
bool get_nomap() const { return nomap; }
uint8_t get_port();
void set_pulls(uint8_t pullup, uint8_t pulldown);
auto read_callback() { return read_port.bind(); }
auto write_callback() { return write_port.bind(); }
protected:
uint32_t map_offset[2];
uint8_t map_enable;
bool nomap;
class mi_4510 : public memory_interface {
public:
m4510_device *base;
mi_4510(m4510_device *base);
virtual ~mi_4510() {}
virtual uint8_t read(uint16_t adr) override;
virtual uint8_t read_sync(uint16_t adr) override;
virtual uint8_t read_arg(uint16_t adr) override;
virtual void write(uint16_t adr, uint8_t val) override;
};
devcb_read8 read_port;
devcb_write8 write_port;
uint8_t pullup, floating, dir, port, drive;
virtual void device_start() override ATTR_COLD;
virtual void device_reset() override ATTR_COLD;
virtual bool memory_translate(int spacenum, int intention, offs_t &address, address_space *&target_space) override;
inline uint32_t map(uint16_t adr) {
if(map_enable & (1 << (adr >> 13))) {
nomap = false;
return adr + map_offset[adr >> 15];
}
nomap = true;
return adr;
}
uint8_t dir_r();
void dir_w(uint8_t data);
uint8_t port_r();
void port_w(uint8_t data);
void init_port();
void update_port();
#define O(o) void o ## _full(); void o ## _partial()
// 4510 opcodes
O(eom_imp);
O(map_imp);
#undef O
};
enum {
M4510_IRQ_LINE = m6502_device::IRQ_LINE,
M4510_NMI_LINE = m6502_device::NMI_LINE
};
DECLARE_DEVICE_TYPE(M4510, m4510_device)
#endif // MAME_CPU_M6502_M4510_H
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