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
|
/***************************************************************************
Digital Microsystems DMS-86
11/01/2010 Skeleton driver.
Monitor commands:
A
B boot to HiNet
D dump memory to screen
I in port
L memory test
O out port (e.g. O 84 77)
P
S write a byte to memory
T
X display registers
Note that bit 3 of port 82 is tested at boot. If low, the computer bypasses
the monitor and goes straight to "Joining HiNet".
****************************************************************************/
#include "emu.h"
#include "cpu/i86/i86.h"
#include "machine/terminal.h"
class dms86_state : public driver_device
{
public:
dms86_state(const machine_config &mconfig, device_type type, const char *tag)
: driver_device(mconfig, type, tag),
m_maincpu(*this, "maincpu"),
m_terminal(*this, TERMINAL_TAG)
{ }
required_device<cpu_device> m_maincpu;
required_device<generic_terminal_device> m_terminal;
DECLARE_READ16_MEMBER( dms86_82_r );
DECLARE_READ16_MEMBER( dms86_84_r );
DECLARE_READ16_MEMBER( dms86_86_r );
DECLARE_READ16_MEMBER( dms86_9a_r );
DECLARE_WRITE8_MEMBER( kbd_put );
UINT8 *m_ram;
UINT8 m_term_data;
virtual void machine_reset();
};
READ16_MEMBER( dms86_state::dms86_82_r )
{
// HiNet / Monitor switch
return 0xff;
}
READ16_MEMBER( dms86_state::dms86_84_r )
{
UINT8 ret = m_term_data;
m_term_data = 0;
return ret;
}
READ16_MEMBER( dms86_state::dms86_86_r )
{
return 4 | (m_term_data ? 1 : 0);
}
READ16_MEMBER( dms86_state::dms86_9a_r )
{
return 0;
}
static ADDRESS_MAP_START(dms86_mem, AS_PROGRAM, 16, dms86_state)
ADDRESS_MAP_UNMAP_HIGH
AM_RANGE(0x00000, 0x1ffff) AM_RAM
AM_RANGE(0xfe000, 0xfffff) AM_ROM AM_REGION("user1",0)
ADDRESS_MAP_END
static ADDRESS_MAP_START(dms86_io, AS_IO, 16, dms86_state)
ADDRESS_MAP_UNMAP_HIGH
ADDRESS_MAP_GLOBAL_MASK(0xff)
AM_RANGE(0x82, 0x83) AM_READ(dms86_82_r)
AM_RANGE(0x84, 0x85) AM_READ(dms86_84_r) AM_DEVWRITE8(TERMINAL_TAG, generic_terminal_device, write, 0xff)
AM_RANGE(0x86, 0x87) AM_READ(dms86_86_r)
AM_RANGE(0x9A, 0x9B) AM_READ(dms86_9a_r)
AM_RANGE(0x9c, 0x9d) AM_DEVWRITE8(TERMINAL_TAG, generic_terminal_device, write, 0xff)
ADDRESS_MAP_END
/* Input ports */
static INPUT_PORTS_START( dms86 )
INPUT_PORTS_END
void dms86_state::machine_reset()
{
}
WRITE8_MEMBER( dms86_state::kbd_put )
{
m_term_data = data;
}
static GENERIC_TERMINAL_INTERFACE( terminal_intf )
{
DEVCB_DRIVER_MEMBER(dms86_state, kbd_put)
};
static MACHINE_CONFIG_START( dms86, dms86_state )
/* basic machine hardware */
MCFG_CPU_ADD("maincpu",I8086, XTAL_9_8304MHz)
MCFG_CPU_PROGRAM_MAP(dms86_mem)
MCFG_CPU_IO_MAP(dms86_io)
MCFG_GENERIC_TERMINAL_ADD(TERMINAL_TAG, terminal_intf)
MACHINE_CONFIG_END
/* ROM definition */
ROM_START( dms86 )
ROM_REGION( 0x2000, "user1", ROMREGION_ERASEFF )
ROM_LOAD16_BYTE( "hns-86_54-8678.bin", 0x0000, 0x1000, CRC(95f58e1c) SHA1(6fc8f087f0c887d8b429612cd035c6c1faab570c))
ROM_LOAD16_BYTE( "hns-86_54-8677.bin", 0x0001, 0x1000, CRC(78fad756) SHA1(ddcbff1569ec6975b8489935cdcfa80eba413502))
ROM_END
/* Driver */
/* YEAR NAME PARENT COMPAT MACHINE INPUT INIT COMPANY FULLNAME FLAGS */
COMP( 1982, dms86, 0, 0, dms86, dms86, driver_device, 0, "Digital Microsystems", "DMS-86", GAME_NOT_WORKING | GAME_NO_SOUND)
|