summaryrefslogtreecommitdiffstatshomepage
path: root/src/mess/audio/mos7360.h
blob: c60218a381cb274984fc0ef412d5a493f8d2d897 (plain) (blame)
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
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
/***************************************************************************

    MOS 7360/8360 Text Edit Device (TED) emulation

    Copyright the MESS Team.
    Visit http://mamedev.org for licensing and usage restrictions.

****************************************************************************
                            _____   _____
                   DB6   1 |*    \_/     | 40  Vcc
                   DB5   2 |             | 39  DB7
                   DB4   3 |             | 38  DB8
                   DB3   4 |             | 37  DB9
                   DB2   5 |             | 36  DB10
                   DB1   6 |             | 35  DB11
                   DB0   7 |             | 34  A13
                  _IRQ   8 |             | 33  A12
                    LP   9 |             | 32  A11
                   _CS  10 |   MOS7360   | 31  A10
                   R/W  11 |             | 30  A9
                    BA  12 |             | 29  A8
                   Vdd  13 |             | 28  A7
                 COLOR  14 |             | 27  A6
                 S/LUM  15 |             | 26  A5
                   AEC  16 |             | 25  A4
                   PH0  17 |             | 24  A3
                  PHIN  18 |             | 23  A2
                 PHCOL  19 |             | 22  A1
                   Vss  20 |_____________| 21  A0

***************************************************************************/

#pragma once

#ifndef __MOS7360__
#define __MOS7360__

#include "emu.h"



/***************************************************************************
    DEVICE CONFIGURATION MACROS
***************************************************************************/

#define MCFG_MOS7360_ADD(_tag, _screen_tag, _clock, _config, _videoram_map) \
	MCFG_SCREEN_ADD(_screen_tag, RASTER) \
	MCFG_SCREEN_REFRESH_RATE(TED7360PAL_VRETRACERATE) \
	MCFG_SCREEN_VBLANK_TIME(ATTOSECONDS_IN_USEC(2500)) \
	MCFG_SCREEN_SIZE(336, 216) \
	MCFG_SCREEN_VISIBLE_AREA(0, 336 - 1, 0, 216 - 1) \
	MCFG_SCREEN_UPDATE_DEVICE(_tag, mos7360_device, screen_update) \
	MCFG_DEVICE_ADD(_tag, MOS7360, _clock) \
	MCFG_DEVICE_CONFIG(_config) \
	MCFG_DEVICE_ADDRESS_MAP(AS_0, _videoram_map)


#define MOS7360_INTERFACE(_name) \
	const mos7360_interface (_name) =



//**************************************************************************
//  MACROS / CONSTANTS
//**************************************************************************

#define TED7360NTSC_VRETRACERATE 60
#define TED7360PAL_VRETRACERATE 50
#define TED7360_HRETRACERATE 15625

/* the following values depend on the VIC clock,
 * but to achieve TV-frequency the clock must have a fix frequency */
#define TED7360_HSIZE	320
#define TED7360_VSIZE	200

/* of course you clock select an other clock, but for accurate */
/* video timing (these are used in c16/c116/plus4) */
#define TED7360NTSC_CLOCK	(14318180/4)
#define TED7360PAL_CLOCK	(17734470/5)

/* pal 50 Hz vertical screen refresh, screen consists of 312 lines
 * ntsc 60 Hz vertical screen refresh, screen consists of 262 lines */
#define TED7360NTSC_LINES 261
#define TED7360PAL_LINES 312



/***************************************************************************
    TYPE DEFINITIONS
***************************************************************************/

// ======================> mos7360_interface

struct mos7360_interface
{
	const char			*m_screen_tag;
	const char			*m_cpu_tag;

	devcb_write_line	m_out_irq_cb;

	devcb_read8			m_in_k_cb;
};


// ======================> mos7360_device

class mos7360_device :  public device_t,
					    public device_memory_interface,
					    public device_sound_interface,
					    public mos7360_interface
{
public:
	// construction/destruction
	//mos7360_device(const machine_config &mconfig, device_type type, const char *name, const char *tag, device_t *owner, UINT32 clock);
	mos7360_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);

	virtual const address_space_config *memory_space_config(address_spacenum spacenum = AS_0) const;

	DECLARE_READ8_MEMBER( read );
	DECLARE_WRITE8_MEMBER( write );

	int cs0_r(offs_t offset);
	int cs1_r(offs_t offset);

	UINT8 bus_r();

	UINT32 screen_update(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect);

	// horrible crap code
	DECLARE_WRITE_LINE_MEMBER( rom_switch_w );
	DECLARE_READ_LINE_MEMBER( rom_switch_r );
	void frame_interrupt_gen();
	void raster_interrupt_gen();

protected:
	enum
	{
		TYPE_7360
	};

	enum
	{
		TIMER_ID_1,
		TIMER_ID_2,
		TIMER_ID_3
	};

	// device-level overrides
	virtual void device_config_complete();
	virtual void device_start();
	virtual void device_reset();
	virtual void device_timer(emu_timer &timer, device_timer_id id, int param, void *ptr);

	// device_sound_interface callbacks
	virtual void sound_stream_update(sound_stream &stream, stream_sample_t **inputs, stream_sample_t **outputs, int samples);

	inline void set_interrupt(int mask);
	inline void clear_interrupt(int mask);
	inline int rastercolumn();
	inline UINT8 read_ram(offs_t offset);
	inline UINT8 read_rom(offs_t offset);

	void draw_character(int ybegin, int yend, int ch, int yoff, int xoff, UINT16 *color);
	void draw_character_multi(int ybegin, int yend, int ch, int yoff, int xoff);
	void draw_bitmap(int ybegin, int yend, int ch, int yoff, int xoff);
	void draw_bitmap_multi(int ybegin, int yend, int ch, int yoff, int xoff);
	void draw_cursor(int ybegin, int yend, int yoff, int xoff, int color);
	void drawlines(int first, int last);
	void soundport_w(int offset, int data);

	const address_space_config		m_videoram_space_config;

	devcb_resolved_write_line	m_out_irq_func;
	devcb_resolved_read8		m_in_k_func;

	screen_device *m_screen;			// screen which sets bitmap properties
	cpu_device *m_cpu;
	sound_stream *m_stream;

	UINT8 m_reg[0x20];
	UINT8 m_last_data;

	bitmap_rgb32 m_bitmap;

	int m_rom;

	int m_frame_count;

	int m_lines;
	int m_timer1_active, m_timer2_active, m_timer3_active;
	emu_timer *m_timer1, *m_timer2, *m_timer3;
	int m_cursor1;

	int m_chargenaddr, m_bitmapaddr, m_videoaddr;

	int m_x_begin, m_x_end;
	int m_y_begin, m_y_end;

	UINT16 m_c16_bitmap[2], m_bitmapmulti[4], m_mono[2], m_monoinversed[2], m_multi[4], m_ecmcolor[2], m_colors[5];

	int m_rasterline, m_lastline;
	double m_rastertime;

	/* sound part */
	UINT8 *m_noise;
	int m_tone1pos, m_tone2pos,
	m_tone1samples, m_tone2samples,
	m_noisesize,		  /* number of samples */
	m_noisepos,         /* pos of tone */
	m_noisesamples;	  /* count of samples to give out per tone */

	int m_variant;
};


// device type definition
extern const device_type MOS7360;



#endif