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// license:?
// copyright-holders:Daniel Coulom,Sandro Ronco
/*********************************************************************
ef9345.h
Thomson EF9345 video controller
*********************************************************************/
#pragma once
#ifndef __EF9345_H__
#define __EF9345_H__
#define MCFG_EF9345_ADD(_tag, _config) \
MCFG_DEVICE_ADD(_tag, EF9345, 0) \
MCFG_DEVICE_CONFIG(_config)
#define MCFG_EF9345_PALETTE(_palette_tag) \
ef9345_device::static_set_palette_tag(*device, "^" _palette_tag);
//**************************************************************************
// TYPE DEFINITIONS
//**************************************************************************
// ======================> ef9345_device
class ef9345_device : public device_t,
public device_memory_interface,
public device_video_interface
{
public:
// construction/destruction
ef9345_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
// static configuration
static void static_set_palette_tag(device_t &device, const char *tag);
// device interface
DECLARE_READ8_MEMBER( data_r );
DECLARE_WRITE8_MEMBER( data_w );
void update_scanline(UINT16 scanline);
UINT32 screen_update(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect);
protected:
// device-level overrides
virtual void device_start();
virtual void device_reset();
virtual void device_timer(emu_timer &timer, device_timer_id id, int param, void *ptr);
// device_config_memory_interface overrides
virtual const address_space_config *memory_space_config(address_spacenum spacenum = AS_0) const;
// address space configurations
const address_space_config m_space_config;
// inline helper
inline UINT16 indexram(UINT8 r);
inline UINT16 indexrom(UINT8 r);
inline void inc_x(UINT8 r);
inline void inc_y(UINT8 r);
private:
void set_busy_flag(int period);
void draw_char_40(UINT8 *c, UINT16 x, UINT16 y);
void draw_char_80(UINT8 *c, UINT16 x, UINT16 y);
void set_video_mode(void);
void init_accented_chars(void);
UINT8 read_char(UINT8 index, UINT16 addr);
UINT8 get_dial(UINT8 x, UINT8 attrib);
void zoom(UINT8 *pix, UINT16 n);
UINT16 indexblock(UINT16 x, UINT16 y);
void bichrome40(UINT8 type, UINT16 address, UINT8 dial, UINT16 iblock, UINT16 x, UINT16 y, UINT8 c0, UINT8 c1, UINT8 insert, UINT8 flash, UINT8 hided, UINT8 negative, UINT8 underline);
void quadrichrome40(UINT8 c, UINT8 b, UINT8 a, UINT16 x, UINT16 y);
void bichrome80(UINT8 c, UINT8 a, UINT16 x, UINT16 y);
void makechar(UINT16 x, UINT16 y);
void draw_border(UINT16 line);
void makechar_16x40(UINT16 x, UINT16 y);
void makechar_24x40(UINT16 x, UINT16 y);
void makechar_12x80(UINT16 x, UINT16 y);
void ef9345_exec(UINT8 cmd);
// internal state
static const device_timer_id BUSY_TIMER = 0;
static const device_timer_id BLINKING_TIMER = 1;
memory_region *m_charset;
address_space *m_videoram;
UINT8 m_bf; //busy flag
UINT8 m_char_mode; //40 or 80 chars for line
UINT8 m_acc_char[0x2000]; //accented chars
UINT8 m_registers[8]; //registers R0-R7
UINT8 m_state; //status register
UINT8 m_tgs,m_mat,m_pat,m_dor,m_ror; //indirect registers
UINT8 m_border[80]; //border color
UINT16 m_block; //current memory block
UINT16 m_ram_base[4]; //index of ram charset
UINT8 m_blink; //cursor status
UINT8 m_last_dial[40]; //last chars dial (for determinate the zoom position)
UINT8 m_latchc0; //background color latch
UINT8 m_latchm; //hided atribute latch
UINT8 m_latchi; //insert atribute latch
UINT8 m_latchu; //underline atribute latch
bitmap_rgb32 m_screen_out;
// timers
emu_timer *m_busy_timer;
emu_timer *m_blink_timer;
required_device<palette_device> m_palette;
};
// device type definition
extern const device_type EF9345;
#endif
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