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// license:BSD-3-Clause
// copyright-holders:Aaron Giles
/***************************************************************************
Atari "Stella on Steroids" hardware
***************************************************************************/
#ifndef MAME_INCLUDES_BEATHEAD_H
#define MAME_INCLUDES_BEATHEAD_H
#pragma once
#include "machine/timer.h"
#include "cpu/asap/asap.h"
#include "audio/atarijsa.h"
#include "emupal.h"
#include "screen.h"
class beathead_state : public driver_device
{
public:
beathead_state(const machine_config &mconfig, device_type type, const char *tag) :
driver_device(mconfig, type, tag),
m_maincpu(*this, "maincpu"),
m_palette(*this, "palette"),
m_screen(*this, "screen"),
m_jsa(*this, "jsa"),
m_scan_timer(*this, "scan_timer"),
m_videoram(*this, "videoram"),
m_vram_bulk_latch(*this, "vram_bulk_latch"),
m_palette_select(*this, "palette_select"),
m_ram_base(*this, "ram_base"),
m_rom_base(*this, "user1")
{ }
void beathead(machine_config &config);
protected:
// in drivers/beathead.cpp
void update_interrupts();
void interrupt_control_w(offs_t offset, uint32_t data);
uint32_t interrupt_control_r();
void sound_reset_w(offs_t offset, uint32_t data);
void coin_count_w(offs_t offset, uint32_t data);
// in video/beathead.cpp
void vram_transparent_w(offs_t offset, uint32_t data, uint32_t mem_mask = ~0);
void vram_bulk_w(offs_t offset, uint32_t data, uint32_t mem_mask = ~0);
void vram_latch_w(offs_t offset, uint32_t data);
void vram_copy_w(offs_t offset, uint32_t data);
void finescroll_w(offs_t offset, uint32_t data, uint32_t mem_mask = ~0);
uint32_t hsync_ram_r(offs_t offset);
void hsync_ram_w(offs_t offset, uint32_t data, uint32_t mem_mask = ~0);
TIMER_DEVICE_CALLBACK_MEMBER(scanline_callback);
virtual void machine_reset() override;
virtual void video_start() override;
void main_map(address_map &map);
uint32_t screen_update(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect);
private:
required_device<cpu_device> m_maincpu;
required_device<palette_device> m_palette;
required_device<screen_device> m_screen;
required_device<atari_jsa_iii_device> m_jsa;
required_device<timer_device> m_scan_timer;
required_shared_ptr<uint32_t> m_videoram;
required_shared_ptr<uint32_t> m_vram_bulk_latch;
required_shared_ptr<uint32_t> m_palette_select;
uint32_t m_finescroll;
offs_t m_vram_latch_offset;
offs_t m_hsyncram_offset;
offs_t m_hsyncram_start;
uint8_t m_hsyncram[0x800];
required_shared_ptr<uint32_t> m_ram_base;
required_region_ptr<uint32_t> m_rom_base;
attotime m_hblank_offset;
uint8_t m_irq_line_state;
uint8_t m_irq_enable[3];
uint8_t m_irq_state[3];
};
#endif // MAME_INCLUDES_BEATHEAD_H
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