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// license:GPL-2.0+
// copyright-holders:Curt Coder,Dirk Best
#ifndef MAME_INCLUDES_PX8_H
#define MAME_INCLUDES_PX8_H
#pragma once
#include "cpu/z80/z80.h"
#include "cpu/m6800/m6801.h"
#include "imagedev/cassette.h"
#include "machine/ram.h"
#include "machine/i8251.h"
#include "bus/epson_sio/pf10.h"
#include "emupal.h"
#include "bus/generic/slot.h"
#include "bus/generic/carts.h"
#define UPD70008_TAG "4a"
#define UPD7508_TAG "2e"
#define HD6303_TAG "13d"
#define SED1320_TAG "7c"
#define I8251_TAG "13e"
#define UPD7001_TAG "1d"
#define SCREEN_TAG "screen"
#define PX8_VIDEORAM_MASK 0x17ff
class px8_state : public driver_device
{
public:
px8_state(const machine_config &mconfig, device_type type, const char *tag)
: driver_device(mconfig, type, tag)
, m_maincpu(*this, UPD70008_TAG)
, m_cassette(*this, "cassette")
, m_ram(*this, RAM_TAG)
, m_video_ram(*this, "video_ram")
, m_leds(*this, "led_%u", 0U)
{ }
void px8(machine_config &config);
private:
required_device<cpu_device> m_maincpu;
required_device<cassette_image_device> m_cassette;
required_device<ram_device> m_ram;
/* video state */
required_shared_ptr<uint8_t> m_video_ram; /* LCD video RAM */
output_finder<3> m_leds;
virtual void machine_start() override;
virtual void machine_reset() override;
uint32_t screen_update(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect);
uint8_t gah40m_r(offs_t offset);
void gah40m_w(offs_t offset, uint8_t data);
uint8_t gah40s_r(offs_t offset);
void gah40s_w(offs_t offset, uint8_t data);
void gah40s_ier_w(uint8_t data);
uint8_t krtn_0_3_r();
uint8_t krtn_4_7_r();
void ksc_w(uint8_t data);
void bankswitch();
uint8_t krtn_read();
/* GAH40M state */
uint16_t m_icr = 0; // input capture register
uint16_t m_frc = 0; // free running counter
uint8_t m_ier = 0; // interrupt acknowledge register
uint8_t m_isr = 0; // interrupt status register
uint8_t m_sio = 0; // serial I/O register
int m_bank0 = 0;
/* GAH40S state */
uint16_t m_cnt = 0; // microcassette tape counter
int m_swpr = 0; // P-ROM power switch
uint16_t m_pra = 0; // P-ROM address
uint8_t m_prd = 0; // P-ROM data
/* memory state */
int m_bk2 = 0;
/* keyboard state */
int m_ksc = 0; // keyboard scan column
void px8_palette(palette_device &palette) const;
void px8_io(address_map &map);
void px8_mem(address_map &map);
void px8_slave_mem(address_map &map);
};
#endif
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