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
|
/*********************************************************************
a2themill.h
Implementation of the Stellation Two The Mill 6809 card
*********************************************************************/
#ifndef __A2BUS_THEMILL__
#define __A2BUS_THEMILL__
#include "emu.h"
#include "machine/a2bus.h"
//**************************************************************************
// TYPE DEFINITIONS
//**************************************************************************
class a2bus_themill_device:
public device_t,
public device_a2bus_card_interface
{
public:
// construction/destruction
a2bus_themill_device(const machine_config &mconfig, device_type type, const char *name, const char *tag, device_t *owner, UINT32 clock, const char *shortname, const char *source);
a2bus_themill_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
// optional information overrides
virtual machine_config_constructor device_mconfig_additions() const;
DECLARE_READ8_MEMBER( dma_r );
DECLARE_WRITE8_MEMBER( dma_w );
protected:
virtual void device_start();
virtual void device_reset();
// overrides of standard a2bus slot functions
virtual UINT8 read_c0nx(address_space &space, UINT8 offset);
virtual void write_c0nx(address_space &space, UINT8 offset, UINT8 data);
virtual bool take_c800();
required_device<cpu_device> m_6809;
private:
bool m_bEnabled;
bool m_flipAddrSpace;
bool m_6809Mode;
address_space *m_6502space;
UINT8 m_status;
};
// device type definition
extern const device_type A2BUS_THEMILL;
#endif /* __A2BUS_THEMILL__ */
|