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/****************************************************************************
SNUG Enhanced Video Processor Card (evpc)
See evpc.c for documentation.
Michael Zapf
October 2010: Rewritten as device
February 2012: Rewritten as class
*****************************************************************************/
#ifndef __EVPC__
#define __EVPC__
#include "emu.h"
#include "ti99defs.h"
#include "peribox.h"
#include "dinvram.h"
extern const device_type TI99_EVPC;
struct evpc_palette
{
UINT8 read_index, write_index, mask;
int read;
int state;
struct { UINT8 red, green, blue; } color[0x100];
//int dirty;
};
class snug_enhanced_video_device : public ti_expansion_card_device, public device_nvram_interface
{
public:
snug_enhanced_video_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
DECLARE_READ8Z_MEMBER(readz);
DECLARE_WRITE8_MEMBER(write);
void crureadz(offs_t offset, UINT8 *value);
void cruwrite(offs_t offset, UINT8 data);
protected:
void device_start(void);
void device_reset(void);
void device_stop(void);
const rom_entry *device_rom_region() const;
ioport_constructor device_input_ports() const;
void nvram_default();
void nvram_read(emu_file &file);
void nvram_write(emu_file &file);
private:
UINT8* m_dsrrom;
bool m_RAMEN;
int m_dsr_page;
UINT8* m_novram; /* NOVRAM area */
evpc_palette m_palette;
};
#endif
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