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// license:BSD-3-Clause
// copyright-holders:Philip Bennett
/*************************************************************************
Lock-On hardware
*************************************************************************/
#include "sound/flt_vol.h"
/* Calculated from CRT controller writes */
#define PIXEL_CLOCK (XTAL_21MHz / 3)
#define FRAMEBUFFER_CLOCK XTAL_10MHz
#define HBSTART 320
#define HBEND 0
#define HTOTAL 448
#define VBSTART 240
#define VBEND 0
#define VTOTAL 280
class lockon_state : public driver_device
{
public:
lockon_state(const machine_config &mconfig, device_type type, const char *tag)
: driver_device(mconfig, type, tag),
m_char_ram(*this, "char_ram"),
m_hud_ram(*this, "hud_ram"),
m_scene_ram(*this, "scene_ram"),
m_ground_ram(*this, "ground_ram"),
m_object_ram(*this, "object_ram"),
m_maincpu(*this, "maincpu"),
m_audiocpu(*this, "audiocpu"),
m_ground(*this, "ground"),
m_object(*this, "object"),
m_f2203_1l(*this, "f2203.1l"),
m_f2203_2l(*this, "f2203.2l"),
m_f2203_3l(*this, "f2203.3l"),
m_f2203_1r(*this, "f2203.1r"),
m_f2203_2r(*this, "f2203.2r"),
m_f2203_3r(*this, "f2203.3r"),
m_gfxdecode(*this, "gfxdecode"),
m_screen(*this, "screen"),
m_palette(*this, "palette") { }
/* memory pointers */
required_shared_ptr<UINT16> m_char_ram;
required_shared_ptr<UINT16> m_hud_ram;
required_shared_ptr<UINT16> m_scene_ram;
required_shared_ptr<UINT16> m_ground_ram;
required_shared_ptr<UINT16> m_object_ram;
/* video-related */
tilemap_t *m_tilemap;
UINT8 m_ground_ctrl;
UINT16 m_scroll_h;
UINT16 m_scroll_v;
std::unique_ptr<bitmap_ind16> m_front_buffer;
std::unique_ptr<bitmap_ind16> m_back_buffer;
emu_timer *m_bufend_timer;
emu_timer *m_cursor_timer;
/* Rotation Control */
UINT16 m_xsal;
UINT16 m_x0ll;
UINT16 m_dx0ll;
UINT16 m_dxll;
UINT16 m_ysal;
UINT16 m_y0ll;
UINT16 m_dy0ll;
UINT16 m_dyll;
/* Object palette RAM control */
UINT32 m_iden;
std::unique_ptr<UINT8[]> m_obj_pal_ram;
UINT32 m_obj_pal_latch;
UINT32 m_obj_pal_addr;
/* misc */
UINT8 m_ctrl_reg;
UINT32 m_main_inten;
/* devices */
required_device<cpu_device> m_maincpu;
required_device<cpu_device> m_audiocpu;
required_device<cpu_device> m_ground;
required_device<cpu_device> m_object;
required_device<filter_volume_device> m_f2203_1l;
required_device<filter_volume_device> m_f2203_2l;
required_device<filter_volume_device> m_f2203_3l;
required_device<filter_volume_device> m_f2203_1r;
required_device<filter_volume_device> m_f2203_2r;
required_device<filter_volume_device> m_f2203_3r;
required_device<gfxdecode_device> m_gfxdecode;
required_device<screen_device> m_screen;
required_device<palette_device> m_palette;
DECLARE_READ16_MEMBER(lockon_crtc_r);
DECLARE_WRITE16_MEMBER(lockon_crtc_w);
DECLARE_WRITE16_MEMBER(lockon_char_w);
DECLARE_WRITE16_MEMBER(lockon_scene_h_scr_w);
DECLARE_WRITE16_MEMBER(lockon_scene_v_scr_w);
DECLARE_WRITE16_MEMBER(lockon_ground_ctrl_w);
DECLARE_WRITE16_MEMBER(lockon_tza112_w);
DECLARE_READ16_MEMBER(lockon_obj_4000_r);
DECLARE_WRITE16_MEMBER(lockon_obj_4000_w);
DECLARE_WRITE16_MEMBER(lockon_fb_clut_w);
DECLARE_WRITE16_MEMBER(lockon_rotate_w);
DECLARE_WRITE16_MEMBER(adrst_w);
DECLARE_READ16_MEMBER(main_gnd_r);
DECLARE_WRITE16_MEMBER(main_gnd_w);
DECLARE_READ16_MEMBER(main_obj_r);
DECLARE_WRITE16_MEMBER(main_obj_w);
DECLARE_WRITE16_MEMBER(tst_w);
DECLARE_READ16_MEMBER(main_z80_r);
DECLARE_WRITE16_MEMBER(main_z80_w);
DECLARE_WRITE16_MEMBER(inten_w);
DECLARE_WRITE16_MEMBER(emres_w);
DECLARE_READ8_MEMBER(adc_r);
DECLARE_WRITE8_MEMBER(sound_vol);
DECLARE_WRITE8_MEMBER(ym2203_out_b);
TILE_GET_INFO_MEMBER(get_lockon_tile_info);
virtual void machine_start() override;
virtual void machine_reset() override;
virtual void video_start() override;
DECLARE_PALETTE_INIT(lockon);
UINT32 screen_update_lockon(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect);
void screen_eof_lockon(screen_device &screen, bool state);
TIMER_CALLBACK_MEMBER(cursor_callback);
TIMER_CALLBACK_MEMBER(bufend_callback);
void scene_draw( );
void ground_draw( );
void objects_draw( );
void rotate_draw( bitmap_ind16 &bitmap, const rectangle &cliprect );
void hud_draw( bitmap_ind16 &bitmap, const rectangle &cliprect );
DECLARE_WRITE_LINE_MEMBER(ym2203_irq);
};
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