summaryrefslogtreecommitdiffstatshomepage
path: root/src/mess/includes/tmc600.h
blob: e4fa4e8c2f7ddf00a1cecf6eb55b6b9e16986605 (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
#pragma once

#ifndef __TMC600__
#define __TMC600__


#include "emu.h"
#include "cpu/cosmac/cosmac.h"
#include "formats/basicdsk.h"
#include "imagedev/flopdrv.h"
#include "imagedev/cassette.h"
#include "imagedev/snapquik.h"
#include "machine/ctronics.h"
#include "machine/ram.h"
#include "sound/cdp1869.h"

#define SCREEN_TAG		"screen"
#define CDP1802_TAG		"cdp1802"
#define CDP1869_TAG		"cdp1869"
#define CENTRONICS_TAG	"centronics"

#define TMC600_PAGE_RAM_SIZE	0x400
#define TMC600_PAGE_RAM_MASK	0x3ff

class tmc600_state : public driver_device
{
public:
	tmc600_state(const machine_config &mconfig, device_type type, const char *tag)
		: driver_device(mconfig, type, tag),
		  m_maincpu(*this, CDP1802_TAG),
		  m_vis(*this, CDP1869_TAG),
		  m_cassette(*this, CASSETTE_TAG),
		  m_ram(*this, RAM_TAG),
		  m_page_ram(*this, "page_ram")
	 { }

	required_device<cosmac_device> m_maincpu;
	required_device<cdp1869_device> m_vis;
	required_device<cassette_image_device> m_cassette;
	required_device<ram_device> m_ram;

	virtual void machine_start();

	virtual void video_start();

	DECLARE_WRITE8_MEMBER( keyboard_latch_w );
	DECLARE_WRITE8_MEMBER( vismac_register_w );
	DECLARE_WRITE8_MEMBER( vismac_data_w );
	DECLARE_WRITE8_MEMBER( page_ram_w );
	DECLARE_READ_LINE_MEMBER( clear_r );
	DECLARE_READ_LINE_MEMBER( ef2_r );
	DECLARE_READ_LINE_MEMBER( ef3_r );
	DECLARE_WRITE_LINE_MEMBER( q_w );

	UINT8 get_color(UINT16 pma);

	// video state
	int m_vismac_reg_latch;		// video register latch
	int m_vismac_color_latch;	// color latch
	int m_vismac_bkg_latch;		// background color latch
	int m_blink;				// cursor blink

	required_shared_ptr<UINT8> m_page_ram;			// page memory
	UINT8 *m_color_ram;			// color memory
	UINT8 *m_char_rom;			// character generator ROM

	// keyboard state
	int m_keylatch;				// key latch
};

// ---------- defined in video/tmc600.c ----------

MACHINE_CONFIG_EXTERN( tmc600_video );

#endif