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/*************************************************************************
Circus Charlie
*************************************************************************/
#include "sound/dac.h"
#include "sound/sn76496.h"
#include "sound/discrete.h"
class circusc_state : public driver_device
{
public:
circusc_state(const machine_config &mconfig, device_type type, const char *tag)
: driver_device(mconfig, type, tag) ,
m_spritebank(*this, "spritebank"),
m_scroll(*this, "scroll"),
m_colorram(*this, "colorram"),
m_videoram(*this, "videoram"),
m_spriteram_2(*this, "spriteram_2"),
m_spriteram(*this, "spriteram"),
m_sn_1(*this, "sn1"),
m_sn_2(*this, "sn2"),
m_discrete(*this, "discrete"){ }
/* memory pointers */
required_shared_ptr<UINT8> m_spritebank;
required_shared_ptr<UINT8> m_scroll;
required_shared_ptr<UINT8> m_colorram;
required_shared_ptr<UINT8> m_videoram;
required_shared_ptr<UINT8> m_spriteram_2;
required_shared_ptr<UINT8> m_spriteram;
/* video-related */
tilemap_t *m_bg_tilemap;
/* sound-related */
UINT8 m_sn_latch;
/* devices */
cpu_device *m_audiocpu;
required_device<sn76496_device> m_sn_1;
required_device<sn76496_device> m_sn_2;
dac_device *m_dac;
required_device<discrete_device> m_discrete;
UINT8 m_irq_mask;
DECLARE_READ8_MEMBER(circusc_sh_timer_r);
DECLARE_WRITE8_MEMBER(circusc_sh_irqtrigger_w);
DECLARE_WRITE8_MEMBER(circusc_coin_counter_w);
DECLARE_WRITE8_MEMBER(circusc_sound_w);
DECLARE_WRITE8_MEMBER(irq_mask_w);
DECLARE_WRITE8_MEMBER(circusc_videoram_w);
DECLARE_WRITE8_MEMBER(circusc_colorram_w);
DECLARE_WRITE8_MEMBER(circusc_flipscreen_w);
DECLARE_DRIVER_INIT(circusc);
TILE_GET_INFO_MEMBER(get_tile_info);
virtual void machine_start();
virtual void machine_reset();
virtual void video_start();
virtual void palette_init();
UINT32 screen_update_circusc(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect);
INTERRUPT_GEN_MEMBER(vblank_irq);
};
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