/
konin.cpp
161 lines (126 loc) · 5.58 KB
/
konin.cpp
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
// license:BSD-3-Clause
// copyright-holders:Miodrag Milanovic
/***************************************************************************
Mera-Elzab Konin
It's an industrial computer used in Poland
No information has been found. All code is guesswork.
2011-12-29 Skeleton driver.
2016-07-15 Added terminal and uart.
Press E to see some messages.
Terminal settings: 8 data bits, 2 stop bits, no parity @ 9600
****************************************************************************/
#include "emu.h"
#include "cpu/i8085/i8085.h"
#include "machine/i8212.h"
#include "machine/i8214.h"
#include "machine/i8251.h"
#include "machine/pit8253.h"
#include "machine/i8255.h"
#include "bus/rs232/rs232.h"
namespace {
class konin_state : public driver_device
{
public:
konin_state(const machine_config &mconfig, device_type type, const char *tag)
: driver_device(mconfig, type, tag)
, m_maincpu(*this, "maincpu")
, m_picu(*this, "picu")
, m_ioppi(*this, "ioppi")
, m_iopit(*this, "iopit")
{ }
void konin(machine_config &config);
private:
void picu_r3_w(int state);
void io_map(address_map &map);
void mem_map(address_map &map);
virtual void machine_start() override;
required_device<cpu_device> m_maincpu;
required_device<i8214_device> m_picu;
required_device<i8255_device> m_ioppi;
required_device<pit8253_device> m_iopit;
};
void konin_state::picu_r3_w(int state)
{
m_picu->r_w(4, !state);
}
void konin_state::mem_map(address_map &map)
{
map.unmap_value_high();
map(0x0000, 0x4fff).rom();
map(0x5000, 0x7fff).ram();
map(0xf200, 0xf200).nopw(); // watchdog?
map(0xf400, 0xfbff).ram();
map(0xfc80, 0xfc83).rw("mainppi", FUNC(i8255_device::read), FUNC(i8255_device::write));
map(0xfc84, 0xfc87).rw("mainpit", FUNC(pit8253_device::read), FUNC(pit8253_device::write));
map(0xff00, 0xffff).ram();
}
void konin_state::io_map(address_map &map)
{
map.unmap_value_high();
map.global_mask(0xff);
map(0x24, 0x24).w(m_picu, FUNC(i8214_device::b_w));
map(0x80, 0x83).lrw8(
NAME([this](offs_t offset) { return m_ioppi->read(offset^3); }),
NAME([this](offs_t offset, u8 data) { m_ioppi->write(offset^3, data); }));
map(0xf6, 0xf6).rw("uart", FUNC(i8251_device::status_r), FUNC(i8251_device::control_w));
map(0xf7, 0xf7).rw("uart", FUNC(i8251_device::data_r), FUNC(i8251_device::data_w));
map(0xf8, 0xfb).lrw8(
NAME([this](offs_t offset) { return m_iopit->read(offset^3); }),
NAME([this](offs_t offset, u8 data) { m_iopit->write(offset^3, data); }));
}
/* Input ports */
static INPUT_PORTS_START( konin )
INPUT_PORTS_END
void konin_state::machine_start()
{
}
void konin_state::konin(machine_config &config)
{
/* basic machine hardware */
i8080_cpu_device &maincpu(I8080(config, m_maincpu, XTAL(4'000'000)));
maincpu.set_addrmap(AS_PROGRAM, &konin_state::mem_map);
maincpu.set_addrmap(AS_IO, &konin_state::io_map);
maincpu.out_inte_func().set(m_picu, FUNC(i8214_device::inte_w));
maincpu.set_irq_acknowledge_callback("intlatch", FUNC(i8212_device::inta_cb));
i8212_device &intlatch(I8212(config, "intlatch", 0));
intlatch.md_rd_callback().set_constant(0);
intlatch.di_rd_callback().set(m_picu, FUNC(i8214_device::vector_r));
intlatch.int_wr_callback().set_inputline("maincpu", I8085_INTR_LINE);
I8214(config, m_picu, XTAL(4'000'000));
m_picu->int_wr_callback().set("intlatch", FUNC(i8212_device::stb_w));
pit8253_device &mainpit(PIT8253(config, "mainpit", 0));
// wild guess at UART clock and source
mainpit.set_clk<0>(1536000);
mainpit.out_handler<0>().set("uart", FUNC(i8251_device::write_txc));
mainpit.out_handler<0>().append("uart", FUNC(i8251_device::write_rxc));
I8255(config, "mainppi", 0);
PIT8253(config, m_iopit, 0);
I8255(config, m_ioppi, 0);
i8251_device &uart(I8251(config, "uart", 0));
uart.txd_handler().set("rs232", FUNC(rs232_port_device::write_txd));
uart.dtr_handler().set("rs232", FUNC(rs232_port_device::write_dtr));
uart.rts_handler().set("rs232", FUNC(rs232_port_device::write_rts));
uart.rxrdy_handler().set(FUNC(konin_state::picu_r3_w));
rs232_port_device &rs232(RS232_PORT(config, "rs232", default_rs232_devices, "terminal"));
rs232.rxd_handler().set("uart", FUNC(i8251_device::write_rxd));
rs232.dsr_handler().set("uart", FUNC(i8251_device::write_dsr));
rs232.cts_handler().set("uart", FUNC(i8251_device::write_cts));
}
/* ROM definition */
ROM_START( konin )
ROM_REGION( 0x5000, "maincpu", 0 )
ROM_LOAD( "001.bin", 0x0000, 0x0800, CRC(0b13208a) SHA1(38ea17be591b729158d601c03bfd9954f32e0e67))
ROM_LOAD( "008.bin", 0x0800, 0x0800, CRC(f003e407) SHA1(11f79ef3b90788cf627ee39705bbbd04dbf45f50))
ROM_LOAD( "007.bin", 0x1000, 0x0800, CRC(3d390c03) SHA1(ac2fe31c065e8f630381d6cebd2eb58b403c1e02))
ROM_LOAD( "006.bin", 0x1800, 0x0800, CRC(68c9732e) SHA1(f40a79719dca485a2db29be5c0c781f559c2551c))
ROM_LOAD( "005.bin", 0x2000, 0x0800, CRC(14548ac4) SHA1(8987e528b3e479c4c5941366628f34f086d06838))
ROM_LOAD( "004.bin", 0x2800, 0x0800, CRC(8a354cff) SHA1(24d9f1fb15458fc96f5265f79d54e030b68d9fc9))
ROM_LOAD( "002.bin", 0x3000, 0x0800, CRC(791fb30d) SHA1(8dfbe0edb741e02cfdd138432999f89480b20471))
ROM_LOAD( "003.bin", 0x3800, 0x0800, CRC(27dc9864) SHA1(0d3da7fd1db895883c106f5133f8c7228333ecc8))
ROM_LOAD( "009.bin", 0x4000, 0x0800, CRC(80947d15) SHA1(0757fb191913d79f306874684f9fc082ce18a28e))
ROM_LOAD( "010.bin", 0x4800, 0x0800, CRC(f0157e0c) SHA1(60ace1eaf0ba01a45987c2286e18f3d56441c994))
ROM_END
} // anonymous namespace
/* Driver */
// YEAR NAME PARENT COMPAT MACHINE INPUT CLASS INIT COMPANY FULLNAME FLAGS
COMP( 198?, konin, 0, 0, konin, konin, konin_state, empty_init, "Mera-Elzab", "Konin", MACHINE_IS_SKELETON | MACHINE_SUPPORTS_SAVE )