1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
|
// license:GPL-2.0+
// copyright-holders:Raphael Nabet
#ifndef MAME_VIDEO_733_ASR
#define MAME_VIDEO_733_ASR
#pragma once
#include "emupal.h"
#include "screen.h"
#define asr733_chr_region ":gfx1"
class asr733_device : public device_t, public device_gfx_interface
{
public:
enum
{
/* 8 bytes per character definition */
single_char_len = 8,
chr_region_len = 128*single_char_len
};
asr733_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
DECLARE_READ8_MEMBER(cru_r);
DECLARE_WRITE8_MEMBER(cru_w);
auto keyint_cb() { return m_keyint_line.bind(); }
auto lineint_cb() { return m_lineint_line.bind(); }
protected:
// device-level overrides
void device_start() override;
void device_reset() override;
virtual void device_add_mconfig(machine_config &config) override;
void device_timer(emu_timer &timer, device_timer_id id, int param, void *ptr) override;
ioport_constructor device_input_ports() const override;
private:
// internal state
#if 0
uint8_t 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_t data);
uint32_t screen_update(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect);
required_device<screen_device> m_screen;
emu_timer *m_line_timer; // screen line timer
uint8_t m_recv_buf;
uint8_t m_xmit_buf;
uint8_t m_status;
uint8_t m_mode;
uint8_t m_last_key_pressed;
int m_last_modifier_state;
unsigned char m_repeat_timer;
int m_new_status_flag;
int m_x;
std::unique_ptr<bitmap_ind16> m_bitmap;
devcb_write_line m_keyint_line;
devcb_write_line m_lineint_line;
};
DECLARE_DEVICE_TYPE(ASR733, asr733_device)
#endif // MAME_VIDEO_733_ASR
|