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// license:BSD-3-Clause
// copyright-holders:Dan Boris
#ifndef __ATARI_MARIA__
#define __ATARI_MARIA__
#include "emu.h"
// ======================> atari_maria_device
class atari_maria_device : public device_t
{
public:
// construction/destruction
atari_maria_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
static void set_cpu_tag(device_t &device, const char *tag) { downcast<atari_maria_device &>(device).m_cpu_tag = tag; }
void interrupt(int lines);
void startdma(int lines);
DECLARE_READ8_MEMBER(read);
DECLARE_WRITE8_MEMBER(write);
UINT32 screen_update(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect);
protected:
// device-level overrides
virtual void device_start();
virtual void device_reset();
private:
int m_maria_palette[32];
int m_line_ram[2][160];
int m_active_buffer;
int m_write_mode;
unsigned int m_dll;
unsigned int m_dl;
int m_holey;
int m_offset;
int m_vblank;
int m_dmaon;
int m_dpp;
int m_wsync;
int m_color_kill;
int m_cwidth;
int m_bcntl;
int m_kangaroo;
int m_rm;
int m_nmi;
unsigned int m_charbase;
bitmap_ind16 m_bitmap;
void draw_scanline();
int is_holey(unsigned int addr);
int write_line_ram(int addr, UINT8 offset, int pal);
const char *m_cpu_tag;
cpu_device *m_cpu; // CPU whose space(AS_PROGRAM) serves as DMA source
screen_device *m_screen;
};
// device type definition
extern const device_type ATARI_MARIA;
#define MCFG_MARIA_DMACPU(_tag) \
atari_maria_device::set_cpu_tag(*device, _tag);
#endif
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