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// license:GPL-2.0+
// copyright-holders:Raphael Nabet
#define asr733_chr_region ":gfx1"
enum
{
/* 8 bytes per character definition */
asr733_single_char_len = 8,
asr733_chr_region_len = 128*asr733_single_char_len
};
class asr733_device : public device_t
{
public:
asr733_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
DECLARE_PALETTE_INIT(asr733);
DECLARE_READ8_MEMBER(cru_r);
DECLARE_WRITE8_MEMBER(cru_w);
template<class _Object> static devcb_base &static_set_keyint_callback(device_t &device, _Object object)
{
return downcast<asr733_device &>(device).m_keyint_line.set_callback(object);
}
template<class _Object> static devcb_base &static_set_lineint_callback(device_t &device, _Object object)
{
return downcast<asr733_device &>(device).m_lineint_line.set_callback(object);
}
UINT32 screen_update(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect);
protected:
// device-level overrides
void device_config_complete();
void device_start();
void device_reset();
machine_config_constructor device_mconfig_additions() const;
void device_timer(emu_timer &timer, device_timer_id id, int param, void *ptr);
ioport_constructor device_input_ports() const;
private:
// internal state
#if 0
UINT8 m_OutQueue[ASROutQueueSize];
int m_OutQueueHead;
int m_OutQueueLen;
#endif
void check_keyboard();
void refresh(bitmap_ind16 &bitmap, int x, int y);
void set_interrupt_line();
void draw_char(int character, int x, int y, int color);
void linefeed();
void transmit(UINT8 data);
emu_timer *m_line_timer; // screen line timer
UINT8 m_recv_buf;
UINT8 m_xmit_buf;
UINT8 m_status;
UINT8 m_mode;
UINT8 m_last_key_pressed;
int m_last_modifier_state;
unsigned char m_repeat_timer;
int m_new_status_flag;
int m_x;
bitmap_ind16* m_bitmap;
required_device<palette_device> m_palette;
required_device<gfxdecode_device> m_gfxdecode;
devcb_write_line m_keyint_line;
devcb_write_line m_lineint_line;
};
extern const device_type ASR733;
#define MCFG_ASR733_KEYINT_HANDLER( _intcallb ) \
devcb = &asr733_device::static_set_keyint_callback( *device, DEVCB_##_intcallb );
#define MCFG_ASR733_LINEINT_HANDLER( _intcallb ) \
devcb = &asr733_device::static_set_lineint_callback( *device, DEVCB_##_intcallb );
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