summaryrefslogtreecommitdiffstatshomepage
path: root/src/devices/bus/multibus/labtam_vducom.h
blob: d497c2a107f6247ea314a2017ad6a8890c8cc4f1 (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
// license:BSD-3-Clause
// copyright-holders:Patrick Mackinlay

#ifndef MAME_BUS_MULTIBUS_LABTAM_VDUCOM_H
#define MAME_BUS_MULTIBUS_LABTAM_VDUCOM_H

#pragma once

#include "multibus.h"

#include "cpu/i86/i86.h"
#include "machine/am9513.h"
#include "machine/pic8259.h"
#include "machine/x2212.h"
#include "machine/z80sio.h"
#include "video/mc6845.h"

#include "bus/rs232/rs232.h"

#include "emupal.h"
#include "screen.h"


class labtam_vducom_device
	: public device_t
	, public device_multibus_interface
{
public:
	labtam_vducom_device(machine_config const &mconfig, char const *tag, device_t *owner, const XTAL &clock);

protected:
	// device_t overrides
	virtual const tiny_rom_entry *device_rom_region() const override;
	virtual void device_add_mconfig(machine_config &config) override;
	virtual ioport_constructor device_input_ports() const override;
	virtual void device_resolve_objects() override;
	virtual void device_start() override;
	virtual void device_reset() override;

private:
	void cpu_mem(address_map &map);
	void cpu_pio(address_map &map);

	void bus_mem_w(offs_t offset, u16 data, u16 mem_mask);
	u16 bus_mem_r(offs_t offset, u16 mem_mask);
	void bus_pio_w(offs_t offset, u16 data, u16 mem_mask) { m_bus->space(AS_IO).write_word(offset << 1, data, mem_mask); }
	u16 bus_pio_r(offs_t offset, u16 mem_mask) { return m_bus->space(AS_IO).read_word(offset << 1, mem_mask); }

	u8 nvram_r(address_space &space, offs_t offset) { return m_nvram[1]->read(space, offset) << 4 | m_nvram[0]->read(space, offset); }
	void nvram_w(offs_t offset, u8 data) { m_nvram[0]->write(offset, data & 0x0f); m_nvram[1]->write(offset, data >> 4); }

	u8 u15_r(offs_t offset) { return BIT(m_e4->read(), offset); }
	void u7_w(offs_t offset, u8 data);

	void palette_init(palette_device &palette);
	MC6845_UPDATE_ROW(update_row);

	required_device<i8086_cpu_device> m_cpu;
	required_device<pic8259_device> m_pic;
	required_device_array<am9513_device, 2> m_ctc;
	required_device_array<z80sio_device, 2> m_com;
	required_device_array<x2212_device, 2> m_nvram;
	required_device<mc6845_device> m_crtc;
	required_device<palette_device> m_palette;
	required_device<screen_device> m_screen;

	required_shared_ptr_array<u16, 2> m_ram;
	required_ioport m_e4;
	memory_view m_mbus;

	u16 m_start;
	u8 m_u7;

	bool m_installed;
};

DECLARE_DEVICE_TYPE(LABTAM_VDUCOM, labtam_vducom_device)

#endif // MAME_BUS_MULTIBUS_LABTAM_VDUCOM_H