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
82
83
84
|
// license:BSD-3-Clause
// copyright-holders:Sandro Ronco
/***************************************************************************
VTech Laser PC4
****************************************************************************/
#ifndef MAME_INCLUDES_PC4_H
#define MAME_INCLUDES_PC4_H
#pragma once
#include "sound/beep.h"
#include "emupal.h"
class pc4_state : public driver_device
{
public:
pc4_state(const machine_config &mconfig, device_type type, const char *tag) :
driver_device(mconfig, type, tag),
m_maincpu(*this, "maincpu"),
m_beep(*this, "beeper"),
m_region_charset(*this, "charset"),
m_rombank(*this, "rombank")
{ }
void pc4(machine_config &config);
protected:
virtual void machine_start() override;
TIMER_CALLBACK_MEMBER(clear_busy_flag);
TIMER_CALLBACK_MEMBER(blink_tick);
private:
uint32_t screen_update(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect);
void beep_w(uint8_t data);
void bank_w(uint8_t data);
uint8_t kb_r(offs_t offset);
//LCD controller
void update_ac();
void set_busy_flag(uint16_t usec);
void lcd_control_w(uint8_t data);
uint8_t lcd_control_r();
void lcd_data_w(uint8_t data);
uint8_t lcd_data_r();
void lcd_offset_w(uint8_t data);
void pc4_palette(palette_device &palette) const;
void pc4_io(address_map &map);
void pc4_mem(address_map &map);
emu_timer *m_blink_timer = nullptr;
emu_timer *m_busy_timer = nullptr;
uint8_t m_busy_flag = 0;
uint8_t m_ddram[0xa0]{};
uint8_t m_cgram[0x40]{};
int16_t m_ac = 0;
uint8_t m_ac_mode = 0;
uint8_t m_data_bus_flag = 0;
int16_t m_cursor_pos = 0;
uint8_t m_display_on = 0;
uint8_t m_cursor_on = 0;
uint8_t m_blink_on = 0;
uint8_t m_shift_on = 0;
int8_t m_disp_shift = 0;
int8_t m_direction = 0;
uint8_t m_blink = 0;
required_device<cpu_device> m_maincpu;
required_device<beep_device> m_beep;
required_memory_region m_region_charset;
required_memory_bank m_rombank;
ioport_port *io_port[8];
};
#endif // MAME_INCLUDES_PC4_H
|