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// license:GPL-2.0+
// copyright-holders:Juergen Buchmueller, Krzysztof Strzecha, Robbbert
/*****************************************************************************
*
* ZX-80/ZX-81 and derivatives
*
****************************************************************************/
#ifndef MAME_INCLUDES_ZX_H
#define MAME_INCLUDES_ZX_H
#pragma once
#include "cpu/z80/z80.h"
#include "imagedev/cassette.h"
#include "machine/ram.h"
#include "sound/spkrdev.h"
#include "emupal.h"
#include "screen.h"
#include "softlist_dev.h"
#include "formats/tzx_cas.h"
#include "formats/zx81_p.h"
class zx_state : public driver_device
{
public:
zx_state(const machine_config &mconfig, device_type type, const char *tag) :
driver_device(mconfig, type, tag),
m_maincpu(*this, "maincpu"),
m_ram(*this, RAM_TAG),
m_cassette(*this, "cassette"),
m_softlist(*this, "cass_list"),
m_speaker(*this, "speaker"),
m_region_maincpu(*this, "maincpu"),
m_region_gfx1(*this, "gfx1"),
m_io_row(*this, "ROW%u", 0U),
m_io_config(*this, "CONFIG"),
m_screen(*this, "screen")
{ }
void zx81(machine_config &config);
void zx81_spk(machine_config &config);
void ts1000(machine_config &config);
void pc8300(machine_config &config);
void pow3000(machine_config &config);
void ts1500(machine_config &config);
void zx80(machine_config &config);
void init_zx();
protected:
virtual void machine_reset() override;
virtual void video_start() override;
private:
uint32_t screen_update(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect);
uint8_t ula_high_r(offs_t offset);
uint8_t ula_low_r(offs_t offset);
void refresh_w(offs_t offset, uint8_t data);
uint8_t zx80_io_r(offs_t offset);
uint8_t zx81_io_r(offs_t offset);
uint8_t pc8300_io_r(offs_t offset);
uint8_t pow3000_io_r(offs_t offset);
void zx80_io_w(offs_t offset, uint8_t data);
void zx81_io_w(offs_t offset, uint8_t data);
TIMER_CALLBACK_MEMBER(zx_tape_input);
TIMER_CALLBACK_MEMBER(zx_ula_hsync);
void pc8300_io_map(address_map &map);
void pow3000_io_map(address_map &map);
void ula_map(address_map &map);
void zx80_io_map(address_map &map);
void zx80_map(address_map &map);
void zx81_io_map(address_map &map);
void zx81_map(address_map &map);
required_device<z80_device> m_maincpu;
required_device<ram_device> m_ram;
required_device<cassette_image_device> m_cassette;
required_device<software_list_device> m_softlist;
optional_device<speaker_sound_device> m_speaker;
required_memory_region m_region_maincpu;
optional_memory_region m_region_gfx1;
required_ioport_array<8> m_io_row;
optional_ioport m_io_config;
required_device<screen_device> m_screen;
address_space *m_program = nullptr;
emu_timer *m_tape_input = nullptr;
emu_timer *m_ula_hsync = nullptr;
bool m_vsync_active = false, m_hsync_active = false;
bool m_nmi_on = false, m_nmi_generator_active = false;
uint64_t m_base_vsync_clock = 0, m_vsync_start_time = 0;
uint32_t m_ypos = 0;
uint8_t m_prev_refresh = 0;
uint8_t m_speaker_state = 0;
std::unique_ptr<bitmap_ind16> m_bitmap_render;
std::unique_ptr<bitmap_ind16> m_bitmap_buffer;
uint16_t m_ula_char_buffer = 0;
double m_cassette_cur_level = 0;
void drop_sync();
void recalc_hsync();
};
#endif // MAME_INCLUDES_ZX_H
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