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// license:BSD-3-Clause
// copyright-holders:Sven Schnelle
#ifndef MAME_VIDEO_NEREID_H
#define MAME_VIDEO_NEREID_H
#pragma once
class nereid_device : public device_t
{
public:
nereid_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
DECLARE_READ16_MEMBER(ctrl_r);
DECLARE_WRITE16_MEMBER(ctrl_w);
rgb_t map_color(uint8_t input);
protected:
nereid_device(const machine_config &mconfig, device_type type, const char *tag, device_t *owner, uint32_t clock);
virtual void device_start() override;
virtual void device_reset() override;
private:
static constexpr int NEREID_BUSY=1;
static constexpr int NEREID_RED_DATA=0x59;
static constexpr int NEREID_GREEN_DATA=0x5a;
static constexpr int NEREID_BLUE_DATA=0x5b;
static constexpr int NEREID_INDEX=0x5c;
static constexpr int NEREID_PLANE_MASK=0x5d;
static constexpr int NEREID_STROBE=0x78;
rgb_t m_palette[256];
/* registers */
uint8_t m_red;
uint8_t m_green;
uint8_t m_blue;
uint8_t m_index;
uint8_t m_plane_mask;
};
DECLARE_DEVICE_TYPE(NEREID, nereid_device)
#endif // MAME_VIDEO_NEREID_H
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