blob: 35974888745c778bbc08ed9d5dc3cc47c69985d6 (
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
|
// license:BSD-3-Clause
// copyright-holders:Patrick Mackinlay
#pragma once
#ifndef INTERPRO_MCGA_H_
#define INTERPRO_MCGA_H_
// mcga control register
#define MCGA_CTRL_OPTMASK 0x00000003
#define MCGA_CTRL_CBITFRCRD 0x00000004
#define MCGA_CTRL_CBITFRCSUB 0x00000008
#define MCGA_CTRL_ENREFRESH 0x00000010
#define MCGA_CTRL_ENMSBE 0x00000100
#define MCGA_CTRL_ENMMBE 0x00000200
#define MCGA_CTRL_ENECC 0x00000400
#define MCGA_CTRL_WRPROT 0x00008000
// mcga error register
#define MCGA_ERROR_VALID 0x00008000
class interpro_mcga_device : public device_t
{
public:
interpro_mcga_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
virtual DECLARE_ADDRESS_MAP(map, 32);
DECLARE_WRITE16_MEMBER(write);
DECLARE_READ16_MEMBER(read);
protected:
virtual void device_start() override;
virtual void device_reset() override;
private:
uint16_t m_reg[32];
};
// device type definition
extern const device_type INTERPRO_MCGA;
#endif
|