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
|
// license:BSD-3-Clause
// copyright-holders:Robbbert
/***************************************************************************
CVICNY8080 - Practice-z80 - a homebrew from Czechoslavakia.
More data at :
https://web.archive.org/web/20190202185251/http://www.nostalcomp.cz/cvicny8080.php
2011-10-21 New working driver. [Robbbert]
Keys:
0-9,A-F : hexadecimal numbers
ADR : enter an address to work with. After the 4 digits are entered,
the data at that address shows, and you can modify the data.
+ (inc) : Enter the data into memory, and increment the address by 1.
GO : execute the program located at the current address.
Pasting:
0-F : as is
+ (inc) : ^
ADR : -
GO : X
Test Paste:
11^22^33^44^55^66^77^88^99^-0800
Now press up-arrow to confirm the data has been entered.
****************************************************************************/
#include "emu.h"
#include "cpu/z80/z80.h"
#include "video/pwm.h"
#include "cvicny.lh"
namespace {
class cvicny_state : public driver_device
{
public:
cvicny_state(const machine_config &mconfig, device_type type, const char *tag)
: driver_device(mconfig, type, tag)
, m_maincpu(*this, "maincpu")
, m_display(*this, "display")
, m_io_keyboard(*this, "X%u", 0U)
{ }
void cvicny(machine_config &config);
protected:
virtual void machine_start() override;
private:
void cvicny_mem(address_map &map);
u8 key_r();
void digit_w(u8 data);
void segment_w(u8 data);
u8 m_digit = 0U;
u8 m_seg = 0U;
required_device<cpu_device> m_maincpu;
required_device<pwm_display_device> m_display;
required_ioport_array<8> m_io_keyboard;
};
void cvicny_state::segment_w(u8 data) // output segments on the selected digit
{
m_seg = data;
m_display->matrix(1<<m_digit, m_seg);
}
void cvicny_state::digit_w(u8 data) // set keyboard scanning row; set digit to display
{
m_digit = data & 7;
m_display->matrix(1<<m_digit, m_seg);
}
u8 cvicny_state::key_r()
{
u8 data = m_io_keyboard[m_digit]->read();
return ((data << 4) ^ 0xf0) | data;
}
void cvicny_state::machine_start()
{
save_item(NAME(m_digit));
save_item(NAME(m_seg));
}
void cvicny_state::cvicny_mem(address_map &map)
{
map.unmap_value_high();
map(0x0000, 0x07ff).rom(); // 1 x 2716
map(0x0800, 0x0bff).ram().mirror(0x400); // 2x 2114 static ram
map(0x1000, 0x17ff).r(FUNC(cvicny_state::key_r));
map(0x1800, 0x1fff).w(FUNC(cvicny_state::digit_w));
map(0x2000, 0x27ff).w(FUNC(cvicny_state::segment_w));
}
/* Input ports */
static INPUT_PORTS_START( cvicny )
PORT_START("X0")
PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("3") PORT_CODE(KEYCODE_3) PORT_CHAR('3')
PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("7") PORT_CODE(KEYCODE_7) PORT_CHAR('7')
PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("B") PORT_CODE(KEYCODE_B) PORT_CHAR('B')
PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("F") PORT_CODE(KEYCODE_F) PORT_CHAR('F')
PORT_START("X1")
PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("2") PORT_CODE(KEYCODE_2) PORT_CHAR('2')
PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("6") PORT_CODE(KEYCODE_6) PORT_CHAR('6')
PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("A") PORT_CODE(KEYCODE_A) PORT_CHAR('A')
PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("E") PORT_CODE(KEYCODE_E) PORT_CHAR('E')
PORT_START("X2")
PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("1") PORT_CODE(KEYCODE_1) PORT_CHAR('1')
PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("5") PORT_CODE(KEYCODE_5) PORT_CHAR('5')
PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("9") PORT_CODE(KEYCODE_9) PORT_CHAR('9')
PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("D") PORT_CODE(KEYCODE_D) PORT_CHAR('D')
PORT_START("X3")
PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("0") PORT_CODE(KEYCODE_0) PORT_CHAR('0')
PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("4") PORT_CODE(KEYCODE_4) PORT_CHAR('4')
PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("8") PORT_CODE(KEYCODE_8) PORT_CHAR('8')
PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("C") PORT_CODE(KEYCODE_C) PORT_CHAR('C')
PORT_START("X4")
PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("+") PORT_CODE(KEYCODE_UP) PORT_CHAR('^')
PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("ADR") PORT_CODE(KEYCODE_MINUS) PORT_CHAR('-')
PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("GO") PORT_CODE(KEYCODE_X) PORT_CHAR('X')
PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_UNUSED )
PORT_START("X5")
PORT_BIT( 0x0F, IP_ACTIVE_LOW, IPT_UNUSED )
PORT_START("X6")
PORT_BIT( 0x0F, IP_ACTIVE_LOW, IPT_UNUSED )
PORT_START("X7")
PORT_BIT( 0x0F, IP_ACTIVE_LOW, IPT_UNUSED )
INPUT_PORTS_END
void cvicny_state::cvicny(machine_config &config)
{
/* basic machine hardware */
Z80(config, m_maincpu, XTAL(2'000'000));
m_maincpu->set_addrmap(AS_PROGRAM, &cvicny_state::cvicny_mem);
/* video hardware */
config.set_default_layout(layout_cvicny);
PWM_DISPLAY(config, m_display).set_size(8, 8);
m_display->set_segmask(0xff, 0xff);
}
/* ROM definition */
ROM_START( cvicny )
ROM_REGION( 0x0800, "maincpu", 0 )
ROM_LOAD("cvicny8080.bin", 0x0000, 0x05ea, CRC(e6119052) SHA1(d03c2cbfd047f0d090a787fbbde6353593cc2dd8) )
ROM_END
} // anonymous namespace
/* Driver */
// YEAR NAME PARENT COMPAT MACHINE INPUT CLASS INIT COMPANY FULLNAME FLAGS
COMP( 1984, cvicny, 0, 0, cvicny, cvicny, cvicny_state, empty_init, "<unknown>", "Practice-z80", MACHINE_NO_SOUND_HW | MACHINE_SUPPORTS_SAVE )
|