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ep64.cpp
694 lines (553 loc) · 27.3 KB
/
ep64.cpp
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// license:BSD-3-Clause
// copyright-holders:Curt Coder
/**********************************************************************
Enterprise Sixty Four / One Two Eight emulation
**********************************************************************/
/*
Enterprise Sixty Four / Enterprise One Two Eight
Enterprise Computers Ltd. 1985
MAIN PCB Layout
---------------
DUAL
|-----------| 9V TAPE_IN/OUT RES
|HEATSINK | DC_IN MON1 AND REMOTE SR1 PR1 CN2A CN1A |-|
| |--||---|--||--|--| |--| |-||-||-||-||-| |----| |-----| |--| |--| |-|-|------|
|-----------|7805 | MOD | |-| |-| |-| |-| |-| |-| |-| EXP2 --|EXTERNAL
|---+7805 | | 74LS06 74LS273 74LS86 74LS32 --|EXPANSION
| | |------| 74LS244 --|CONNECTOR
| |78L12 POT1 LM386 |-----| |-----| EXP1 --|
CART | | LM1889 LM1886 74LS04|NICK | |DAVE | --|
CONN | | KEYB_8 POT2 KEYB_10 | | | | --|
| | 4.433619MHz 74LS145 POT3 LED |-----| |-----| --|
|---+ --|
| 74LS74 74LS244 74LS244 74LS245 |---------|
| |
| 74LS373 4164 4164 74F157 |
| |
| 16-2-103 LM339 LM324 4164 4164 74F157 EXOS.IC2 |
| 8MHz |
| 74LS373 4164 4164 |
| 74LS04 Z80A |
| 74LS273 4164 4164 |
|------------------------------------------------------------------|
Notes: (all IC's shown)
Z80A - Z80A CPU, clock input 4MHz [8/2]
EXOS.IC2 - 32k x8-bit mask ROM usually 23256 manufactured by GI (DIP24). Contains EXOS operating
system and built-in word processor software. A few official revisions were made and
there were a few unofficial revision made with additional capabilities and bug-fixes
ROM labelling of some official versions found....
9256DS-0019 (C)1984 INTELLIGENT SOFTWARE LTD ENTER 08-45-A GI
9256DS-0036 (C)1984 INTELLIGENT SOFTWARE LTD ENTER 05-23-A GI
4164 - 64k x1-bit Dynamic RAM with Page Mode (DIP16)
NICK - Custom graphics chip (QFP72)
DAVE - Custom sound chip (QFP72)
LM386 - National Semiconductor LM386 Low Voltage Audio Power Amplifier (DIP8)
LM1889 - National Semiconductor LM1889 TV Video Modulator (DIP18)
LM1886 - National Semiconductor LM1886 TV Video Matrix DAC (DIP20)
LM339 - SGS LM339 Low Power Low Offset Voltage Quad Comparator (DIP8)
LM324 - SGS LM324 Quad Operational Amplifier (DIP8)
74LS04 - Hex Inverter (DIP14)
74LS06 - Hex Inverter/Buffer with Open-Collector Outputs (DIP14)
74LS32 - Quad 2-Input Positive OR Gate (DIP14)
74LS74 - Dual Positive-Edge-Triggered D Flip-Flops with Preset, Clear and Complementary Outputs (DIP14)
74LS86 - Quad 2-Input Exclusive OR Gate (DIP14)
74LS145 - BCD to Deccimal Decoder/Driver (DIP16)
74F157 - Quad 2-Line to 1-Line Data Selector/Multiplexer (DIP16). Early rev mainboards use 74LS158 instead
74LS244 - Octal 3-State Noninverting Buffer/Line Driver/Line Receiver (DIP20)
74LS245 - Octal Bus Tranceiver with Tri-State Outputs (DIP20)
74LS273 - Octal D-Type Flip-Flop With Clear (DIP20)
74LS373 - Octal D-Type Transparent Latches and Edge-Triggered Flip-Flops (DIP20)
7805 - Voltage regulator. +9V DC input from DC power pack, +5V DC output
78L12 - Voltage regulator. Voltage input via small transformer on PCB. +12V DC output
POT1 - Potentiometer located near modulator and video output circuitry
POT2 - Potentiometer located near video output circuitry. Probably used to fine-tune the video clock
POT3 - Potentiometer. Possibly for video/NICK-related adjustments
LED - LED to show +5V is present
16-2-103 - Resistor Array (DIP16)
KEYB_8 - 8 pin keyboard connector
KEYB_10 - 10 pin keyboard connector
EXP1 - 28 pin internal expansion connector (solder holes only) used for internal 64k memory expansion card
EXP2 - 10 pin internal expansion connector (solder holes only) used for internal 64k memory expansion card
MOD - Astec UM1233 TV modulator
RES - Reset push button switch
MON1 - Monitor output connector. Pinout is....
Green A1 B1 NC
Ground A2 B2 Ground
Mono Comp. Video A3 B3 Blue
HSync A4 B4 Red
VSync A5 B5 Composite Sync
NC A6 B6 Mode Switch
Left Audio A7 B7 Right Audio
SR1 - Serial/Network connector. Pinout is....
Reference A1 B1 Ground
- A2 B2 -
RTS A3 B3 Data Out
CTS A4 B4 Data In
PR1 - Printer connector. Pinout is....
Ground A1 B1 Ground
Strobe A2 B2 Ready
Data 3 A3 B3 Data 4
- A4 B4 -
Data 2 A5 B5 Data 5
Data 1 A6 B6 Data 6
Data 0 A7 B7 Data 7
CN2A - Joystick 2 connector
CN1A - Joystick 1 connector
Pinout is....
Keyboard J A1 B1 Ground
Keyboard L A2 B2 Keyboard K
- A3 B3 -
Right A4 B4 +5V
Down A5 B5 Left
Fire A6 B6 Up
Internal Memory Expansion PCB Layout
------------------------------------
|---------------------|
| 4164 74LS00 PL3 PL2|
|4164 74LS30 74F157 |
|4164 4164 |
|4164 4164 74F157 |
|4164 4164 74LS32 PL1|
|---------------------|
Notes: (All IC's shown)
PL1 - 28-pin connector (solder pads only) hard-wired to solder pads EXP1 on mainboard
PL2/PL3 - 5-pin connectors (solder pads only) hard-wired to solder pads EXP2 on mainboard
4164 - 64k x1-bit Dynamic RAM with Page Mode (DIP16)
74LS00 - Quad 2-Input NAND Gate (DIP14)
74LS30 - 8-input NAND Gate (DIP14)
74LS32 - Quad 2-Input Positive OR Gate (DIP14)
74F157 - Quad 2-Line to 1-Line Data Selector/Multiplexer (DIP16). Early rev memory boards use 74LS158 instead
*/
/*
TODO:
- POST RAM errors
- rewrite DAVE to output to discrete DAC
- rewrite NICK
- cassette
- external joysticks
http://ep.homeserver.hu/Dokumentacio/Konyvek/
*/
#include "emu.h"
#include "bus/centronics/ctronics.h"
#include "bus/ep64/exp.h"
#include "bus/generic/carts.h"
#include "bus/generic/slot.h"
#include "bus/rs232/rs232.h"
#include "cpu/z80/z80.h"
#include "imagedev/cassette.h"
#include "machine/ram.h"
#include "sound/dave.h"
#include "nick.h"
#include "softlist_dev.h"
#include "speaker.h"
namespace {
#define Z80_TAG "u1"
#define DAVE_TAG "u3"
#define NICK_TAG "u4"
#define CENTRONICS_TAG "centronics"
#define RS232_TAG "rs232"
#define CASSETTE1_TAG "cassette1"
#define CASSETTE2_TAG "cassette2"
#define SCREEN_TAG "screen"
#define EP64_EXPANSION_BUS_TAG "exp"
class ep64_state : public driver_device
{
public:
ep64_state(const machine_config &mconfig, device_type type, const char *tag) :
driver_device(mconfig, type, tag),
m_maincpu(*this, Z80_TAG),
m_dave(*this, DAVE_TAG),
m_nick(*this, NICK_TAG),
m_centronics(*this, CENTRONICS_TAG),
m_rs232(*this, RS232_TAG),
m_cassette1(*this, CASSETTE1_TAG),
m_cassette2(*this, CASSETTE2_TAG),
m_cart(*this, "cartslot"),
m_exp(*this, EP64_EXPANSION_BUS_TAG),
m_ram(*this, RAM_TAG),
m_rom(*this, Z80_TAG),
m_y(*this, "Y%u", 0)
{ }
void ep128(machine_config &config);
void ep64(machine_config &config);
private:
required_device<cpu_device> m_maincpu;
required_device<dave_device> m_dave;
required_device<nick_device> m_nick;
required_device<centronics_device> m_centronics;
required_device<rs232_port_device> m_rs232;
required_device<cassette_image_device> m_cassette1;
required_device<cassette_image_device> m_cassette2;
required_device<generic_slot_device> m_cart;
required_device<ep64_expansion_bus_slot_device> m_exp;
required_device<ram_device> m_ram;
required_memory_region m_rom;
required_ioport_array<10> m_y;
virtual void machine_start() override;
virtual void machine_reset() override;
uint8_t rd0_r();
void wr0_w(uint8_t data);
uint8_t rd1_r();
void wr2_w(uint8_t data);
uint8_t m_key;
void write_centronics_busy(int state);
int m_centronics_busy;
void dave_128k_mem(address_map &map);
void dave_64k_mem(address_map &map);
void dave_io(address_map &map);
void ep64_io(address_map &map);
void ep64_mem(address_map &map);
};
//**************************************************************************
// READ/WRITE HANDLERS
//**************************************************************************
//-------------------------------------------------
// rd0_r -
//-------------------------------------------------
uint8_t ep64_state::rd0_r()
{
uint8_t data = 0xff;
if (m_key < 10)
{
data &= m_y[m_key]->read();
}
return data;
}
//-------------------------------------------------
// rd0_r -
//-------------------------------------------------
void ep64_state::wr0_w(uint8_t data)
{
/*
bit description
0 KEY A
1 KEY B
2 KEY C
3 KEY D
4 PRINTER _STB
5 CASSETTE OUT
6 REMOTE 1
7 REMOTE 2
*/
// keyboard
m_key = data & 0x0f;
// printer
m_centronics->write_strobe(!BIT(data, 4));
// cassette
m_cassette1->output(BIT(data, 5) ? -1.0 : +1.0);
m_cassette2->output(BIT(data, 5) ? -1.0 : +1.0);
// cassette
m_cassette1->change_state(BIT(data, 6) ? CASSETTE_MOTOR_ENABLED : CASSETTE_MOTOR_DISABLED, CASSETTE_MASK_MOTOR);
m_cassette2->change_state(BIT(data, 7) ? CASSETTE_MOTOR_ENABLED : CASSETTE_MOTOR_DISABLED, CASSETTE_MASK_MOTOR);
}
void ep64_state::write_centronics_busy(int state)
{
m_centronics_busy = state;
}
//-------------------------------------------------
// rd1_r -
//-------------------------------------------------
uint8_t ep64_state::rd1_r()
{
/*
bit description
0 KBJ
1 KBK
2 KBL
3 PRINTER _RDY
4 SERIAL/NET DATA IN
5 SERIAL/NET STATUS IN
6 CASSETTE IN
7 ?
*/
uint8_t data = 0;
// printer
data |= m_centronics_busy << 3;
// serial
data |= m_rs232->rxd_r() << 4;
data |= m_rs232->cts_r() << 5;
// cassette
data |= ((m_cassette1->input() < 0) || (m_cassette2->input() < 0)) << 6;
return data;
}
//-------------------------------------------------
// wr2_w -
//-------------------------------------------------
void ep64_state::wr2_w(uint8_t data)
{
/*
bit description
0 SERIAL/NET DATA OUT
1 SERIAL/NET STATUS OUT
2
3
4
5
6
7
*/
// serial
m_rs232->write_txd(!BIT(data, 0));
m_rs232->write_rts(!BIT(data, 1));
}
//**************************************************************************
// ADDRESS MAPS
//**************************************************************************
//-------------------------------------------------
// ADDRESS_MAP( ep64_mem )
//-------------------------------------------------
void ep64_state::ep64_mem(address_map &map)
{
map(0x0000, 0xffff).m(m_dave, FUNC(dave_device::z80_program_map));
}
//-------------------------------------------------
// ADDRESS_MAP( ep64_io )
//-------------------------------------------------
void ep64_state::ep64_io(address_map &map)
{
map(0x0000, 0xffff).m(m_dave, FUNC(dave_device::z80_io_map));
}
//-------------------------------------------------
// ADDRESS_MAP( dave_64k_mem )
//-------------------------------------------------
void ep64_state::dave_64k_mem(address_map &map)
{
map(0x000000, 0x007fff).rom().region(Z80_TAG, 0);
//map(0x010000, 0x01ffff) // mapped by the cartslot
map(0x3f0000, 0x3fffff).m(m_nick, FUNC(nick_device::vram_map));
}
//-------------------------------------------------
// ADDRESS_MAP( dave_128k_mem )
//-------------------------------------------------
void ep64_state::dave_128k_mem(address_map &map)
{
dave_64k_mem(map);
map(0x3e0000, 0x3effff).ram();
}
//-------------------------------------------------
// ADDRESS_MAP( dave_io )
//-------------------------------------------------
void ep64_state::dave_io(address_map &map)
{
map.global_mask(0xff);
map(0x80, 0x8f).m(m_nick, FUNC(nick_device::vio_map));
map(0xb5, 0xb5).rw(FUNC(ep64_state::rd0_r), FUNC(ep64_state::wr0_w));
map(0xb6, 0xb6).r(FUNC(ep64_state::rd1_r)).w("cent_data_out", FUNC(output_latch_device::write));
map(0xb7, 0xb7).w(FUNC(ep64_state::wr2_w));
}
//**************************************************************************
// INPUT PORTS
//**************************************************************************
//-------------------------------------------------
// INPUT_PORTS( ep64 )
//-------------------------------------------------
static INPUT_PORTS_START( ep64 )
PORT_START("Y0")
PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_N) PORT_CHAR('n') PORT_CHAR('N')
PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_TILDE) PORT_CHAR('\\') PORT_CHAR('|')
PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_B) PORT_CHAR('b') PORT_CHAR('B')
PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_C) PORT_CHAR('c') PORT_CHAR('C')
PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_V) PORT_CHAR('v') PORT_CHAR('V')
PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_X) PORT_CHAR('x') PORT_CHAR('X')
PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_Z) PORT_CHAR('z') PORT_CHAR('Z')
PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("Left SHIFT") PORT_CODE(KEYCODE_LSHIFT) PORT_CHAR(UCHAR_SHIFT_1)
PORT_START("Y1")
PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_H) PORT_CHAR('h') PORT_CHAR('H')
PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("LOCK") PORT_CODE(KEYCODE_CAPSLOCK) PORT_CHAR(UCHAR_MAMEKEY(CAPSLOCK))
PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_G) PORT_CHAR('g') PORT_CHAR('G')
PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_D) PORT_CHAR('d') PORT_CHAR('D')
PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_F) PORT_CHAR('f') PORT_CHAR('F')
PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_S) PORT_CHAR('s') PORT_CHAR('S')
PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_A) PORT_CHAR('a') PORT_CHAR('A')
PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("CTRL") PORT_CODE(KEYCODE_LCONTROL)
PORT_START("Y2")
PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_U) PORT_CHAR('u') PORT_CHAR('U')
PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_Q) PORT_CHAR('q') PORT_CHAR('Q')
PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_Y) PORT_CHAR('y') PORT_CHAR('Y')
PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_R) PORT_CHAR('r') PORT_CHAR('R')
PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_T) PORT_CHAR('t') PORT_CHAR('T')
PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_E) PORT_CHAR('e') PORT_CHAR('E')
PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_W) PORT_CHAR('w') PORT_CHAR('W')
PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("TAB") PORT_CODE(KEYCODE_TAB) PORT_CHAR('\t')
PORT_START("Y3")
PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_7) PORT_CHAR('7') PORT_CHAR('\'')
PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_1) PORT_CHAR('1') PORT_CHAR('!')
PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_6) PORT_CHAR('6') PORT_CHAR('&')
PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_4) PORT_CHAR('4') PORT_CHAR('$')
PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_5) PORT_CHAR('5') PORT_CHAR('%')
PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_3) PORT_CHAR('3') PORT_CHAR(U'£')
PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_2) PORT_CHAR('2') PORT_CHAR('"')
PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("ESC") PORT_CODE(KEYCODE_ESC) PORT_CHAR(UCHAR_MAMEKEY(ESC))
PORT_START("Y4")
PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("FUNCTION 4") PORT_CODE(KEYCODE_F4) PORT_CHAR(UCHAR_MAMEKEY(F4))
PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("FUNCTION 8") PORT_CODE(KEYCODE_F8) PORT_CHAR(UCHAR_MAMEKEY(F8))
PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("FUNCTION 3") PORT_CODE(KEYCODE_F3) PORT_CHAR(UCHAR_MAMEKEY(F3))
PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("FUNCTION 6") PORT_CODE(KEYCODE_F6) PORT_CHAR(UCHAR_MAMEKEY(F6))
PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("FUNCTION 5") PORT_CODE(KEYCODE_F5) PORT_CHAR(UCHAR_MAMEKEY(F5))
PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("FUNCTION 7") PORT_CODE(KEYCODE_F7) PORT_CHAR(UCHAR_MAMEKEY(F7))
PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("FUNCTION 2") PORT_CODE(KEYCODE_F2) PORT_CHAR(UCHAR_MAMEKEY(F2))
PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("FUNCTION 1") PORT_CODE(KEYCODE_F1) PORT_CHAR(UCHAR_MAMEKEY(F1))
PORT_START("Y5")
PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_8) PORT_CHAR('8') PORT_CHAR('(')
PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_UNUSED )
PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_9) PORT_CHAR('9') PORT_CHAR(')')
PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_MINUS) PORT_CHAR('-') PORT_CHAR('=')
PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_0) PORT_CHAR('0') PORT_CHAR('_')
PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_EQUALS) PORT_CHAR('^') PORT_CHAR('~')
PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("ERASE") PORT_CODE(KEYCODE_BACKSPACE) PORT_CHAR(8)
PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_UNUSED )
PORT_START("Y6")
PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_J) PORT_CHAR('j') PORT_CHAR('J')
PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_UNUSED )
PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_K) PORT_CHAR('k') PORT_CHAR('K')
PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_COLON) PORT_CHAR(';') PORT_CHAR('+')
PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_L) PORT_CHAR('l') PORT_CHAR('L')
PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_QUOTE) PORT_CHAR(':') PORT_CHAR('*')
PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_BACKSLASH) PORT_CHAR(']') PORT_CHAR('}')
PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_UNUSED )
PORT_START("Y7")
PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("STOP") PORT_CODE(KEYCODE_END)
PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_JOYSTICK_DOWN ) PORT_8WAY
PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT ) PORT_8WAY
PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_JOYSTICK_UP ) PORT_8WAY
PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("HOLD") PORT_CODE(KEYCODE_HOME)
PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT ) PORT_8WAY
PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("ENTER") PORT_CODE(KEYCODE_ENTER) PORT_CHAR('\r')
PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("ALT") PORT_CODE(KEYCODE_LALT) PORT_CHAR(UCHAR_MAMEKEY(LALT))
PORT_START("Y8")
PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_M) PORT_CHAR('m') PORT_CHAR('M')
PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("DEL") PORT_CODE(KEYCODE_DEL) PORT_CHAR(UCHAR_MAMEKEY(DEL))
PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_COMMA) PORT_CHAR(',') PORT_CHAR('<')
PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_SLASH) PORT_CHAR('/') PORT_CHAR('?')
PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_STOP) PORT_CHAR('.') PORT_CHAR('>')
PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("Right SHIFT") PORT_CODE(KEYCODE_RSHIFT) PORT_CHAR(UCHAR_SHIFT_1)
PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("SPACE") PORT_CODE(KEYCODE_SPACE) PORT_CHAR(' ')
PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("INS") PORT_CODE(KEYCODE_INSERT) PORT_CHAR(UCHAR_MAMEKEY(INSERT))
PORT_START("Y9")
PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_I) PORT_CHAR('i') PORT_CHAR('I')
PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_UNUSED )
PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_O) PORT_CHAR('o') PORT_CHAR('O')
PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_OPENBRACE) PORT_CHAR('@') PORT_CHAR('`')
PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_P) PORT_CHAR('p') PORT_CHAR('P')
PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_CLOSEBRACE) PORT_CHAR('[') PORT_CHAR('{')
PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_UNUSED )
PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_UNUSED )
INPUT_PORTS_END
//**************************************************************************
// MACHINE INITIALIZATION
//**************************************************************************
//-------------------------------------------------
// MACHINE_START( ep64 )
//-------------------------------------------------
void ep64_state::machine_start()
{
if (m_cart->exists())
m_dave->space(AS_PROGRAM).install_read_handler(0x010000, 0x01ffff, read8sm_delegate(*m_cart, FUNC(generic_slot_device::read_rom)));
// state saving
save_item(NAME(m_key));
save_item(NAME(m_centronics_busy));
}
void ep64_state::machine_reset()
{
m_dave->reset();
m_nick->reset();
wr0_w(0);
subdevice<output_latch_device>("cent_data_out")->write(0);
wr2_w(0);
}
//**************************************************************************
// MACHINE CONFIGURATION
//**************************************************************************
//-------------------------------------------------
// machine_config( ep64 )
//-------------------------------------------------
void ep64_state::ep64(machine_config &config)
{
// basic machine hardware
Z80(config, m_maincpu, XTAL(8'000'000)/2);
m_maincpu->set_addrmap(AS_PROGRAM, &ep64_state::ep64_mem);
m_maincpu->set_addrmap(AS_IO, &ep64_state::ep64_io);
// video hardware
screen_device& screen(SCREEN(config, SCREEN_TAG, SCREEN_TYPE_RASTER));
screen.set_refresh_hz(50);
screen.set_vblank_time(ATTOSECONDS_IN_USEC(2500));
screen.set_size(ENTERPRISE_SCREEN_WIDTH, ENTERPRISE_SCREEN_HEIGHT);
screen.set_visarea(0, ENTERPRISE_SCREEN_WIDTH-1, 0, ENTERPRISE_SCREEN_HEIGHT-1);
screen.set_screen_update(NICK_TAG, FUNC(nick_device::screen_update));
NICK(config, m_nick, XTAL(8'000'000), SCREEN_TAG);
m_nick->virq_wr_callback().set(m_dave, FUNC(dave_device::int1_w));
// sound hardware
SPEAKER(config, "lspeaker").front_left();
SPEAKER(config, "rspeaker").front_right();
DAVE(config, m_dave, XTAL(8'000'000));
m_dave->set_addrmap(AS_PROGRAM, &ep64_state::dave_64k_mem);
m_dave->set_addrmap(AS_IO, &ep64_state::dave_io);
m_dave->irq_wr().set_inputline(Z80_TAG, INPUT_LINE_IRQ0);
m_dave->add_route(0, "lspeaker", 0.25);
m_dave->add_route(1, "rspeaker", 0.25);
// devices
EP64_EXPANSION_BUS_SLOT(config, m_exp, nullptr);
m_exp->set_program_space(m_dave, AS_PROGRAM);
m_exp->set_io_space(m_dave, AS_IO);
m_exp->irq_wr().set_inputline(m_maincpu, INPUT_LINE_IRQ0);
m_exp->nmi_wr().set_inputline(m_maincpu, INPUT_LINE_NMI);
m_exp->wait_wr().set_inputline(m_maincpu, Z80_INPUT_LINE_BOGUSWAIT);
CENTRONICS(config, m_centronics, centronics_devices, "printer");
m_centronics->busy_handler().set(FUNC(ep64_state::write_centronics_busy));
output_latch_device ¢_data_out(OUTPUT_LATCH(config, "cent_data_out"));
m_centronics->set_output_latch(cent_data_out);
RS232_PORT(config, m_rs232, default_rs232_devices, nullptr);
m_rs232->rxd_handler().set(m_dave, FUNC(dave_device::int2_w));
CASSETTE(config, m_cassette1);
m_cassette1->set_default_state(CASSETTE_STOPPED | CASSETTE_MOTOR_DISABLED | CASSETTE_SPEAKER_ENABLED);
m_cassette1->set_interface("ep64_cass");
m_cassette1->add_route(ALL_OUTPUTS, "lspeaker", 0.05);
CASSETTE(config, m_cassette2);
m_cassette2->set_default_state(CASSETTE_STOPPED | CASSETTE_MOTOR_DISABLED | CASSETTE_SPEAKER_ENABLED);
m_cassette2->set_interface("ep64_cass");
m_cassette2->add_route(ALL_OUTPUTS, "rspeaker", 0.05);
// internal RAM
RAM(config, m_ram).set_default_size("64K");
// cartridge
GENERIC_CARTSLOT(config, m_cart, generic_linear_slot, "ep64_cart", "bin,rom");
// software lists
SOFTWARE_LIST(config, "cart_list").set_original("ep64_cart");
SOFTWARE_LIST(config, "cass_list").set_original("ep64_cass");
SOFTWARE_LIST(config, "flop_list").set_original("ep64_flop");
}
//-------------------------------------------------
// machine_config( ep128 )
//-------------------------------------------------
void ep64_state::ep128(machine_config &config)
{
ep64(config);
m_dave->set_addrmap(AS_PROGRAM, &ep64_state::dave_128k_mem);
// internal RAM
m_ram->set_default_size("128K");
}
//**************************************************************************
// ROMS
//**************************************************************************
//-------------------------------------------------
// ROM( ep64 )
//-------------------------------------------------
ROM_START( ep64 )
ROM_REGION( 0x8000, Z80_TAG, 0 )
ROM_LOAD( "9256ds-0038_enter05-23-a.u2", 0x0000, 0x8000, CRC(d421795f) SHA1(6033a0535136c40c47137e4d1cd9273c06d5fdff) )
ROM_END
#define rom_phc64 rom_ep64
//-------------------------------------------------
// ROM( ep128 )
//-------------------------------------------------
ROM_START( ep128 )
ROM_REGION( 0x8000, Z80_TAG, 0 )
ROM_LOAD( "9256ds-0019_enter08-45-a.u2", 0x0000, 0x8000, CRC(982a3b44) SHA1(55315b20fecb4441a07ee4bc5dc7153f396e0a2e) )
ROM_END
} // anonymous namespace
//**************************************************************************
// SYSTEM DRIVERS
//**************************************************************************
// YEAR NAME PARENT COMPAT MACHINE INPUT CLASS INIT COMPANY FULLNAME FLAGS
COMP( 1985, ep64, 0, 0, ep64, ep64, ep64_state, empty_init, "Enterprise Computers", "Enterprise Sixty Four", MACHINE_IMPERFECT_GRAPHICS | MACHINE_IMPERFECT_SOUND )
COMP( 1985, phc64, ep64, 0, ep64, ep64, ep64_state, empty_init, "Hegener + Glaser", "Mephisto PHC 64 (Germany)", MACHINE_IMPERFECT_GRAPHICS | MACHINE_IMPERFECT_SOUND )
COMP( 1986, ep128, ep64, 0, ep128, ep64, ep64_state, empty_init, "Enterprise Computers", "Enterprise One Two Eight", MACHINE_IMPERFECT_GRAPHICS | MACHINE_IMPERFECT_SOUND )