// license:BSD-3-Clause
// copyright-holders:Bryan McPhail, Nicola Salmoria
/*************************************************************************
Volfied
*************************************************************************/
#include "video/pc090oj.h"
class volfied_state : public driver_device
{
public:
enum
{
TIMER_VOLFIED
};
volfied_state(const machine_config &mconfig, device_type type, const char *tag)
: driver_device(mconfig, type, tag),
m_maincpu(*this, "maincpu"),
m_audiocpu(*this, "audiocpu"),
m_pc090oj(*this, "pc090oj"),
m_screen(*this, "screen") { }
/* memory pointers */
std::unique_ptr<UINT16[]> m_video_ram;
std::unique_ptr<UINT8[]> m_cchip_ram;
/* video-related */
UINT16 m_video_ctrl;
UINT16 m_video_mask;
/* c-chip */
UINT8 m_current_bank;
UINT8 m_current_flag;
UINT8 m_cc_port;
UINT8 m_current_cmd;
/* devices */
required_device<cpu_device> m_maincpu;
required_device<cpu_device> m_audiocpu;
required_device<pc090oj_device> m_pc090oj;
required_device<screen_device> m_screen;
DECLARE_WRITE16_MEMBER(volfied_cchip_ctrl_w);
DECLARE_WRITE16_MEMBER(volfied_cchip_bank_w);
DECLARE_WRITE16_MEMBER(volfied_cchip_ram_w);
DECLARE_READ16_MEMBER(volfied_cchip_ctrl_r);
DECLARE_READ16_MEMBER(volfied_cchip_ram_r);
DECLARE_READ16_MEMBER(volfied_video_ram_r);
DECLARE_WRITE16_MEMBER(volfied_video_ram_w);
DECLARE_WRITE16_MEMBER(volfied_video_ctrl_w);
DECLARE_READ16_MEMBER(volfied_video_ctrl_r);
DECLARE_WRITE16_MEMBER(volfied_video_mask_w);
DECLARE_WRITE16_MEMBER(volfied_sprite_ctrl_w);
virtual void machine_start() override;
virtual void machine_reset() override;
virtual void video_start() override;
UINT32 screen_update_volfied(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect);
TIMER_CALLBACK_MEMBER(volfied_timer_callback);
void refresh_pixel_layer( bitmap_ind16 &bitmap );
void volfied_cchip_init();
void volfied_cchip_reset();
protected:
virtual void device_timer(emu_timer &timer, device_timer_id id, int param, void *ptr) override;
};