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// license:BSD-3-Clause
// copyright-holders:Dan Boris
/*************************************************************************
Atari I, Robot hardware
*************************************************************************/
#define IR_TIMING 1 /* try to emulate MB and VG running time */
struct irmb_ops
{
const struct irmb_ops *nxtop;
UINT32 func;
UINT32 diradd;
UINT32 latchmask;
UINT32 *areg;
UINT32 *breg;
UINT8 cycles;
UINT8 diren;
UINT8 flags;
UINT8 ramsel;
};
class irobot_state : public driver_device
{
public:
irobot_state(const machine_config &mconfig, device_type type, const char *tag)
: driver_device(mconfig, type, tag),
m_nvram(*this, "nvram") ,
m_videoram(*this, "videoram"),
m_maincpu(*this, "maincpu"),
m_gfxdecode(*this, "gfxdecode"),
m_screen(*this, "screen"),
m_palette(*this, "palette") { }
required_shared_ptr<UINT8> m_nvram;
required_shared_ptr<UINT8> m_videoram;
UINT8 m_vg_clear;
UINT8 m_bufsel;
UINT8 m_alphamap;
UINT8 *m_combase;
UINT8 m_irvg_vblank;
UINT8 m_irvg_running;
UINT8 m_irmb_running;
#if IR_TIMING
timer_device *m_irvg_timer;
timer_device *m_irmb_timer;
#endif
UINT8 *m_comRAM[2];
UINT8 *m_mbRAM;
UINT8 *m_mbROM;
UINT8 m_control_num;
UINT8 m_statwr;
UINT8 m_out0;
UINT8 m_outx;
UINT8 m_mpage;
UINT8 *m_combase_mb;
irmb_ops *m_mbops;
const irmb_ops *m_irmb_stack[16];
UINT32 m_irmb_regs[16];
UINT32 m_irmb_latch;
std::unique_ptr<UINT8[]> m_polybitmap1;
std::unique_ptr<UINT8[]> m_polybitmap2;
int m_ir_xmin;
int m_ir_ymin;
int m_ir_xmax;
int m_ir_ymax;
DECLARE_WRITE8_MEMBER(irobot_nvram_w);
DECLARE_WRITE8_MEMBER(irobot_clearirq_w);
DECLARE_WRITE8_MEMBER(irobot_clearfirq_w);
DECLARE_READ8_MEMBER(irobot_sharedmem_r);
DECLARE_WRITE8_MEMBER(irobot_sharedmem_w);
DECLARE_WRITE8_MEMBER(irobot_statwr_w);
DECLARE_WRITE8_MEMBER(irobot_out0_w);
DECLARE_WRITE8_MEMBER(irobot_rom_banksel_w);
DECLARE_WRITE8_MEMBER(irobot_control_w);
DECLARE_READ8_MEMBER(irobot_control_r);
DECLARE_READ8_MEMBER(irobot_status_r);
DECLARE_WRITE8_MEMBER(irobot_paletteram_w);
DECLARE_READ8_MEMBER(quad_pokeyn_r);
DECLARE_WRITE8_MEMBER(quad_pokeyn_w);
DECLARE_DRIVER_INIT(irobot);
virtual void machine_reset() override;
virtual void video_start() override;
DECLARE_PALETTE_INIT(irobot);
UINT32 screen_update_irobot(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect);
TIMER_CALLBACK_MEMBER(scanline_callback);
TIMER_DEVICE_CALLBACK_MEMBER(irobot_irvg_done_callback);
TIMER_DEVICE_CALLBACK_MEMBER(irobot_irmb_done_callback);
void _irobot_poly_clear(UINT8 *bitmap_base);
void irobot_poly_clear();
void draw_line(UINT8 *polybitmap, int x1, int y1, int x2, int y2, int col);
void irobot_run_video();
UINT32 irmb_din(const irmb_ops *curop);
void irmb_dout(const irmb_ops *curop, UINT32 d);
void load_oproms();
void irmb_run();
required_device<cpu_device> m_maincpu;
required_device<gfxdecode_device> m_gfxdecode;
required_device<screen_device> m_screen;
required_device<palette_device> m_palette;
};
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