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
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
|
// license:BSD-3-Clause
// copyright-holders:Curt Coder
/**********************************************************************
Hitachi HD61830 LCD Timing Controller emulation
Copyright MESS Team.
Visit http://mamedev.org for licensing and usage restrictions.
**********************************************************************/
#pragma once
#ifndef __HD61830__
#define __HD61830__
#include "emu.h"
//**************************************************************************
// INTERFACE CONFIGURATION MACROS
//**************************************************************************
#define MCFG_HD61830_RD_CALLBACK(_read) \
devcb = &hd61830_device::set_rd_rd_callback(*device, DEVCB2_##_read);
//**************************************************************************
// TYPE DEFINITIONS
//**************************************************************************
// ======================> hd61830_device
class hd61830_device : public device_t,
public device_memory_interface,
public device_video_interface
{
public:
// construction/destruction
hd61830_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
template<class _Object> static devcb2_base &set_rd_rd_callback(device_t &device, _Object object) { return downcast<hd61830_device &>(device).m_read_rd.set_callback(object); }
DECLARE_READ8_MEMBER( status_r );
DECLARE_WRITE8_MEMBER( control_w );
DECLARE_READ8_MEMBER( data_r );
DECLARE_WRITE8_MEMBER( data_w );
UINT32 screen_update(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect);
protected:
// device-level overrides
virtual const rom_entry *device_rom_region() const;
virtual void device_start();
virtual void device_reset();
virtual void device_timer(emu_timer &timer, device_timer_id id, int param, void *ptr);
// device_memory_interface overrides
virtual const address_space_config *memory_space_config(address_spacenum spacenum = AS_0) const;
inline UINT8 readbyte(offs_t address);
inline void writebyte(offs_t address, UINT8 data);
private:
enum
{
INSTRUCTION_MODE_CONTROL = 0,
INSTRUCTION_CHARACTER_PITCH,
INSTRUCTION_NUMBER_OF_CHARACTERS,
INSTRUCTION_NUMBER_OF_TIME_DIVISIONS,
INSTRUCTION_CURSOR_POSITION,
INSTRUCTION_DISPLAY_START_LOW = 8,
INSTRUCTION_DISPLAY_START_HIGH,
INSTRUCTION_CURSOR_ADDRESS_LOW,
INSTRUCTION_CURSOR_ADDRESS_HIGH,
INSTRUCTION_DISPLAY_DATA_WRITE,
INSTRUCTION_DISPLAY_DATA_READ,
INSTRUCTION_CLEAR_BIT,
INSTRUCTION_SET_BIT
};
void set_busy_flag();
UINT16 draw_scanline(bitmap_ind16 &bitmap, const rectangle &cliprect, int y, UINT16 ra);
void update_graphics(bitmap_ind16 &bitmap, const rectangle &cliprect);
void draw_char(bitmap_ind16 &bitmap, const rectangle &cliprect, UINT16 ma, int x, int y, UINT8 md);
void update_text(bitmap_ind16 &bitmap, const rectangle &cliprect);
devcb2_read8 m_read_rd;
emu_timer *m_busy_timer;
//address_space *m_data;
bool m_bf; // busy flag
UINT8 m_ir; // instruction register
UINT8 m_mcr; // mode control register
UINT8 m_dor; // data output register
UINT16 m_dsa; // display start address
UINT16 m_cac; // cursor address counter
int m_vp; // vertical character pitch
int m_hp; // horizontal character pitch
int m_hn; // horizontal number of characters
int m_nx; // number of time divisions
int m_cp; // cursor position
int m_blink; // blink counter
int m_cursor; // cursor visible
// address space configurations
const address_space_config m_space_config;
required_memory_region m_region_hd61830;
};
// device type definition
extern const device_type HD61830;
extern const device_type HD61830B;
#endif
|