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
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
|
/***************************************************************************
SEL Z80 Trainer (LEHRSYSTEME)
31/08/2010 Skeleton driver.
23/06/2011 Working [Robbbert]
No diagram has been found. The following is guesswork.
Another trainer that looks almost identical has been seen. It is called
the DAG-Z80. Bios dump is needed.
Test sequence: Press -, enter an address, press = to show contents, press
up/down-arrow to cycle through addresses.
ToDo:
- Artwork
- Various missing LEDs and switches
- Keys are a guess, need to be confirmed.
- Needs to be tested by a subject-matter expert.
- Unknown I/O:
'maincpu' (00F2): unmapped i/o memory write to 000C = 00 & FF
'maincpu' (00F8): unmapped i/o memory write to 0010 = FF & FF
'maincpu' (0122): unmapped i/o memory write to 0019 = 91 & FF
'maincpu' (0122): unmapped i/o memory write to 0019 = 40 & FF
'maincpu' (0122): unmapped i/o memory write to 0019 = CE & FF
'maincpu' (0122): unmapped i/o memory write to 0019 = 17 & FF
****************************************************************************/
#include "emu.h"
#include "cpu/z80/z80.h"
#include "machine/i8279.h"
#include "selz80.lh"
class selz80_state : public driver_device
{
public:
selz80_state(const machine_config &mconfig, device_type type, const char *tag)
: driver_device(mconfig, type, tag) { }
DECLARE_WRITE8_MEMBER(scanlines_w);
DECLARE_WRITE8_MEMBER(digit_w);
DECLARE_READ8_MEMBER(kbd_r);
UINT8 m_digit;
};
static ADDRESS_MAP_START(selz80_mem, AS_PROGRAM, 8, selz80_state)
ADDRESS_MAP_UNMAP_HIGH
AM_RANGE(0x0000, 0x0fff) AM_ROM
AM_RANGE(0x1000, 0x1fff) AM_RAM
AM_RANGE(0xa000, 0xffff) AM_ROM
ADDRESS_MAP_END
static ADDRESS_MAP_START(selz80_io, AS_IO, 8, selz80_state)
ADDRESS_MAP_UNMAP_HIGH
ADDRESS_MAP_GLOBAL_MASK(0xff)
AM_RANGE(0x00, 0x00) AM_DEVREADWRITE("i8279", i8279_device, data_r, data_w )
AM_RANGE(0x01, 0x01) AM_DEVREADWRITE("i8279", i8279_device, status_r, cmd_w)
ADDRESS_MAP_END
/* Input ports */
static INPUT_PORTS_START( selz80 )
/* 2 x 16-key pads
RS SS RN MM C(IS) D(FL) E(FL') F
EX BP TW TR 8(IX) 9(IY) A(PC) B(SP)
RL IN - + 4(AF') 5(BC') 6(DE') 7(HL')
RG EN SA SD 0(AF) 1(BC) 2(DE) 3(HL)
*/
PORT_START("X0")
PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("F") PORT_CODE(KEYCODE_F) PORT_CHAR('F')
PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("E FL'") PORT_CODE(KEYCODE_E) PORT_CHAR('E')
PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("D FL") PORT_CODE(KEYCODE_D) PORT_CHAR('D')
PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("C IS") PORT_CODE(KEYCODE_C) PORT_CHAR('C')
PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("MM") PORT_CODE(KEYCODE_MINUS) PORT_CHAR('-')
PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("RN") PORT_CODE(KEYCODE_W)
PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("SS") PORT_CODE(KEYCODE_R)
PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("RS") PORT_CODE(KEYCODE_T)
PORT_START("X1")
PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("B SP") PORT_CODE(KEYCODE_B) PORT_CHAR('B')
PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("A PC") PORT_CODE(KEYCODE_A) PORT_CHAR('A')
PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("9 IY") PORT_CODE(KEYCODE_9) PORT_CHAR('9')
PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("8 IX") PORT_CODE(KEYCODE_8) PORT_CHAR('8')
PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("TR (tape read)") PORT_CODE(KEYCODE_Y)
PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("TW (tape write)") PORT_CODE(KEYCODE_U)
PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("BP") PORT_CODE(KEYCODE_I)
PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("EX") PORT_CODE(KEYCODE_O)
PORT_START("X2")
PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("7 HL'") PORT_CODE(KEYCODE_7) PORT_CHAR('7')
PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("6 DE'") PORT_CODE(KEYCODE_6) PORT_CHAR('6')
PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("5 BC'") PORT_CODE(KEYCODE_5) PORT_CHAR('5')
PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("4 AF'") PORT_CODE(KEYCODE_4) PORT_CHAR('4')
PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("+") PORT_CODE(KEYCODE_UP) PORT_CHAR('^')
PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("-") PORT_CODE(KEYCODE_DOWN) PORT_CHAR('V')
PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("IN") PORT_CODE(KEYCODE_S)
PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("RL") PORT_CODE(KEYCODE_G)
PORT_START("X3")
PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("3 HL") PORT_CODE(KEYCODE_3) PORT_CHAR('3')
PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("2 DE") PORT_CODE(KEYCODE_2) PORT_CHAR('2')
PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("1 BC") PORT_CODE(KEYCODE_1) PORT_CHAR('1')
PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("0 AF") PORT_CODE(KEYCODE_0) PORT_CHAR('0')
PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("SD") PORT_CODE(KEYCODE_H)
PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("SA") PORT_CODE(KEYCODE_EQUALS) PORT_CHAR('=')
PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("EN") PORT_CODE(KEYCODE_K)
PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("RG") PORT_CODE(KEYCODE_L)
INPUT_PORTS_END
WRITE8_MEMBER( selz80_state::scanlines_w )
{
m_digit = data;
}
WRITE8_MEMBER( selz80_state::digit_w )
{
output_set_digit_value(m_digit, BITSWAP8(data, 3, 2, 1, 0, 7, 6, 5, 4));
}
READ8_MEMBER( selz80_state::kbd_r )
{
UINT8 data = 0xff;
if (m_digit < 4)
{
char kbdrow[6];
sprintf(kbdrow,"X%X",m_digit);
data = ioport(kbdrow)->read();
}
return data;
}
static I8279_INTERFACE( selz80_intf )
{
DEVCB_NULL, // irq
DEVCB_DRIVER_MEMBER(selz80_state, scanlines_w), // scan SL lines
DEVCB_DRIVER_MEMBER(selz80_state, digit_w), // display A&B
DEVCB_NULL, // BD
DEVCB_DRIVER_MEMBER(selz80_state, kbd_r), // kbd RL lines
DEVCB_LINE_VCC, // Shift key
DEVCB_LINE_VCC
};
static MACHINE_CONFIG_START( selz80, selz80_state )
/* basic machine hardware */
MCFG_CPU_ADD("maincpu",Z80, XTAL_4MHz)
MCFG_CPU_PROGRAM_MAP(selz80_mem)
MCFG_CPU_IO_MAP(selz80_io)
/* video hardware */
MCFG_DEFAULT_LAYOUT(layout_selz80)
/* Devices */
MCFG_I8279_ADD("i8279", 2500000, selz80_intf) // based on divider
MACHINE_CONFIG_END
/* ROM definition */
ROM_START( selz80 )
ROM_REGION( 0x10000, "maincpu", ROMREGION_ERASEFF )
ROM_LOAD( "z80-trainer.rom", 0x0000, 0x1000, CRC(eed1755f) SHA1(72e6ebfccb0e50034660bc36db1a741932311ce1))
ROM_LOAD( "term80-a000.bin", 0xa000, 0x2000, CRC(0a58c0a7) SHA1(d1b4b3b2ad0d084175b1ff6966653d8b20025252))
ROM_LOAD( "term80-e000.bin", 0xe000, 0x2000, CRC(158e08e6) SHA1(f1add43bcf8744a01238fb893ee284872d434db5))
ROM_END
/* Driver */
/* YEAR NAME PARENT COMPAT MACHINE INPUT INIT COMPANY FULLNAME FLAGS */
COMP( 1985, selz80, 0, 0, selz80, selz80, driver_device, 0, "SEL", "Z80 Trainer", GAME_NO_SOUND_HW)
|