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Add dump and skeleton devices for Emerald Technology 3XTwin ISA board

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This commit is contained in:
AJR 2020-12-23 10:56:26 -05:00
parent fc2a349485
commit 0d77739c27
9 changed files with 408 additions and 0 deletions
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2
scripts/src/bus.lua
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@ -1585,6 +1585,8 @@ if (BUSES["ISA"]~=null) then
MAME_DIR .. "src/devices/bus/isa/asc88.h",
MAME_DIR .. "src/devices/bus/isa/bblue2.cpp",
MAME_DIR .. "src/devices/bus/isa/bblue2.h",
MAME_DIR .. "src/devices/bus/isa/3xtwin.cpp",
MAME_DIR .. "src/devices/bus/isa/3xtwin.h",
}
end

12
scripts/src/machine.lua
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@ -983,6 +983,18 @@ if (MACHINES["CHESSMACHINE"]~=null) then
end
---------------------------------------------------
--
--@src/devices/machine/com52c50.h,MACHINES["COM52C50"] = true
---------------------------------------------------
if (MACHINES["COM52C50"]~=null) then
files {
MAME_DIR .. "src/devices/machine/com52c50.cpp",
MAME_DIR .. "src/devices/machine/com52c50.h",
}
end
---------------------------------------------------
--
--@src/devices/machine/com8116.h,MACHINES["COM8116"] = true

1
scripts/target/mame/arcade.lua
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@ -463,6 +463,7 @@ MACHINES["CDP1871"] = true
MACHINES["CHESSMACHINE"] = true
MACHINES["CMOS40105"] = true
MACHINES["CDU76S"] = true
MACHINES["COM52C50"] = true
MACHINES["COM8116"] = true
MACHINES["CR589"] = true
--MACHINES["CS4031"] = true

1
scripts/target/mame/mess.lua
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@ -483,6 +483,7 @@ MACHINES["CDP1879"] = true
--MACHINES["CDU76S"] = true
MACHINES["CHESSMACHINE"] = true
MACHINES["CMOS40105"] = true
MACHINES["COM52C50"] = true
MACHINES["COM8116"] = true
MACHINES["COP452"] = true
MACHINES["CR589"] = true

95
src/devices/bus/isa/3xtwin.cpp Normal file
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@ -0,0 +1,95 @@
// license:BSD-3-Clause
// copyright-holders:AJR
/***************************************************************************
Emerald Technology Inc. 3XTwin IBM 5251/11 twinax emulation board
This smallish card is rather tightly packed with DIP ICs (mostly simple
LSTTL and a few line drivers/receivers) to the point where their
location numbers are difficult to read. There is no host BIOS, and the
65C02's "TWINMON" firmware does very little, clearly relying on
external software.
Communication between the host system and local CPU seems to take place
via shared access to a KM62256LP-10 SRAM.
***************************************************************************/
#include "emu.h"
#include "3xtwin.h"
#include "cpu/m6502/r65c02.h"
#include "machine/com52c50.h"
// device type definition
DEFINE_DEVICE_TYPE(ISA8_3XTWIN, isa8_3xtwin_device, "3xtwin", "Emerald Technology 3XTwin Twinax Emulation Card")
isa8_3xtwin_device::isa8_3xtwin_device(const machine_config &mconfig, const char *tag, device_t *owner, u32 clock)
: device_t(mconfig, ISA8_3XTWIN, tag, owner, clock)
, device_isa8_card_interface(mconfig, *this)
{
}
void isa8_3xtwin_device::device_start()
{
}
void isa8_3xtwin_device::mpu_map(address_map &map)
{
map(0x0000, 0x1fff).ram();
map(0x2000, 0x2007).m("tic", FUNC(com52c50_device::map));
map(0x4000, 0xbfff).ram();
map(0xe000, 0xffff).rom().region("firmware", 0);
}
static INPUT_PORTS_START(3xtwin)
PORT_START("IOBASE")
PORT_DIPNAME(0x1f, 0x19, "Base I/O Address") PORT_DIPLOCATION("S1:5,4,3,2,1")
PORT_DIPSETTING(0x10, "200")
PORT_DIPSETTING(0x11, "220")
PORT_DIPSETTING(0x12, "240")
PORT_DIPSETTING(0x13, "260")
PORT_DIPSETTING(0x14, "280")
PORT_DIPSETTING(0x15, "2A0")
PORT_DIPSETTING(0x16, "2C0")
PORT_DIPSETTING(0x17, "2E0")
PORT_DIPSETTING(0x18, "300")
PORT_DIPSETTING(0x19, "320")
PORT_DIPSETTING(0x1a, "340")
PORT_DIPSETTING(0x1b, "360")
PORT_DIPSETTING(0x1c, "380")
PORT_DIPSETTING(0x1d, "3A0")
PORT_DIPSETTING(0x1e, "3C0")
PORT_DIPSETTING(0x1f, "3E0")
// TODO: IRQ jumpers
INPUT_PORTS_END
ioport_constructor isa8_3xtwin_device::device_input_ports() const
{
return INPUT_PORTS_NAME(3xtwin);
}
void isa8_3xtwin_device::device_add_mconfig(machine_config &config)
{
r65c02_device &mpu(R65C02(config, "mpu", 16_MHz_XTAL / 4)); // R65C02P4
mpu.set_addrmap(AS_PROGRAM, &isa8_3xtwin_device::mpu_map);
com52c50_device &tic(COM52C50(config, "tic", 16_MHz_XTAL));
tic.int1_callback().set_inputline("mpu", r65c02_device::IRQ_LINE);
tic.int2_callback().set_inputline("mpu", r65c02_device::NMI_LINE);
}
ROM_START(3xtwin)
ROM_REGION(0x2000, "firmware", 0) // "MON VER E.01"
ROM_LOAD("370906502.u2", 0x0000, 0x2000, CRC(d4157bc4) SHA1(359428ce0047f9192a44790c8670af956cf6ed70))
// PLDs (undumped) marked "TWINCLK" (U9: ULC24/22V10-15) and "TWINLGC" (U12: PAL20L10ACNS)
ROM_END
const tiny_rom_entry *isa8_3xtwin_device::device_rom_region() const
{
return ROM_NAME(3xtwin);
}

40
src/devices/bus/isa/3xtwin.h Normal file
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@ -0,0 +1,40 @@
// license:BSD-3-Clause
// copyright-holders:AJR
/***************************************************************************
Emerald Technology Inc. 3XTwin IBM 5251/11 emulation board
***************************************************************************/
#ifndef MAME_BUS_ISA_3XTWIN_H
#define MAME_BUS_ISA_3XTWIN_H
#pragma once
#include "isa.h"
// ======================> isa8_3xtwin_device
class isa8_3xtwin_device : public device_t, public device_isa8_card_interface
{
public:
// device type constructor
isa8_3xtwin_device(const machine_config &mconfig, const char *tag, device_t *owner, u32 clock);
protected:
// device-level overrides
virtual void device_start() override;
virtual ioport_constructor device_input_ports() const override;
virtual void device_add_mconfig(machine_config &config) override;
virtual const tiny_rom_entry *device_rom_region() const override;
private:
// local memory map
void mpu_map(address_map &map);
};
// device type declaration
DECLARE_DEVICE_TYPE(ISA8_3XTWIN, isa8_3xtwin_device)
#endif // MAME_BUS_ISA_3XTWIN_H

3
src/devices/bus/isa/isa_cards.cpp
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@ -72,6 +72,7 @@
#include "eis_sad8852.h"
#include "eis_twib.h"
#include "np600.h"
#include "3xtwin.h"
// communication ports
#include "lpt.h"
@ -138,6 +139,7 @@ void pc_isa8_cards(device_slot_interface &device)
device.option_add("epc_twib", ISA8_EIS_TWIB);
device.option_add("babyblue2", ISA8_BABYBLUE2);
device.option_add("acb2072", ACB2072);
device.option_add("3xtwin", ISA8_3XTWIN);
}
void pc_isa16_cards(device_slot_interface &device)
@ -183,6 +185,7 @@ void pc_isa16_cards(device_slot_interface &device)
device.option_add("epc_twib", ISA8_EIS_TWIB);
device.option_add("babyblue2", ISA8_BABYBLUE2);
device.option_add("acb2072", ACB2072);
device.option_add("3xtwin", ISA8_3XTWIN);
// 16-bit
device.option_add("ide", ISA16_IDE);
device.option_add("ne2000", NE2000);

165
src/devices/machine/com52c50.cpp Normal file
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@ -0,0 +1,165 @@
// license:BSD-3-Clause
// copyright-holders:AJR
/***************************************************************************
Standard Microsystems Corp. COM52C50 Twinax Interface Circuit (TIC)
Skeleton device.
***************************************************************************/
#include "emu.h"
#include "com52c50.h"
// device type definition
DEFINE_DEVICE_TYPE(COM52C50, com52c50_device, "com52c50", "SMC COM52C50 TIC")
com52c50_device::com52c50_device(const machine_config &mconfig, const char *tag, device_t *owner, u32 clock)
: device_t(mconfig, COM52C50, tag, owner, clock)
, m_int1_callback(*this)
, m_int2_callback(*this)
, m_rx_dma_callback(*this)
, m_tx_dma_callback(*this)
, m_int_mask(0)
, m_int_status(0)
, m_zero_fill(0)
, m_present_address(0)
, m_rx_status(0)
, m_tx_status(0)
, m_control(0)
, m_mode(0)
{
}
void com52c50_device::map(address_map &map)
{
map(0, 0).w(FUNC(com52c50_device::mode_w));
map(1, 1).rw(FUNC(com52c50_device::int_status_r), FUNC(com52c50_device::int_mask_w));
map(2, 2).rw(FUNC(com52c50_device::rx_status_r), FUNC(com52c50_device::address_select_w));
map(3, 3).rw(FUNC(com52c50_device::rx_buffer_r), FUNC(com52c50_device::control_w));
map(4, 4).w(FUNC(com52c50_device::zero_fill_w));
map(5, 5).rw(FUNC(com52c50_device::present_address_r), FUNC(com52c50_device::present_address_w));
map(6, 6).mirror(1).r(FUNC(com52c50_device::tx_status_r));
map(6, 6).w(FUNC(com52c50_device::tx_buffer_w));
map(7, 7).w(FUNC(com52c50_device::tx_buffer_eom_w));
}
void com52c50_device::device_resolve_objects()
{
m_int1_callback.resolve_safe();
m_int2_callback.resolve_safe();
m_rx_dma_callback.resolve_safe();
m_tx_dma_callback.resolve_safe();
}
void com52c50_device::device_start()
{
save_item(NAME(m_int_mask));
save_item(NAME(m_int_status));
save_item(NAME(m_zero_fill));
save_item(NAME(m_present_address));
save_item(NAME(m_rx_status));
save_item(NAME(m_tx_status));
save_item(NAME(m_control));
save_item(NAME(m_mode));
}
void com52c50_device::device_reset()
{
m_int_mask = 0;
m_int_status = 0;
m_zero_fill = 0;
m_rx_status = 0;
m_tx_status = 0;
m_control = 0x01;
m_mode = 0;
m_int1_callback(CLEAR_LINE);
m_int2_callback(CLEAR_LINE);
}
u8 com52c50_device::rx_buffer_r()
{
if (!machine().side_effects_disabled())
logerror("%s: Reading data from RX buffer\n", machine().describe_context());
return 0;
}
void com52c50_device::tx_buffer_w(u8 data)
{
logerror("%s: Writing %02X to TX buffer\n", machine().describe_context(), data);
}
void com52c50_device::tx_buffer_eom_w(u8 data)
{
logerror("%s: Writing %02X to TX buffer EOM\n", machine().describe_context(), data);
}
void com52c50_device::zero_fill_w(u8 data)
{
logerror("%s: Writing %02X to zero fill register\n", machine().describe_context(), data);
m_zero_fill = data;
}
void com52c50_device::int_mask_w(u8 data)
{
logerror("%s: Writing %02X to interrupt mask register\n", machine().describe_context(), data);
m_int_mask = data;
}
void com52c50_device::address_select_w(u8 data)
{
logerror("%s: Writing %02X to address select register\n", machine().describe_context(), data);
}
u8 com52c50_device::present_address_r()
{
return m_present_address;
}
void com52c50_device::present_address_w(u8 data)
{
logerror("%s: Writing %02X to present address register\n", machine().describe_context(), data);
m_present_address = data & 0x07;
}
u8 com52c50_device::int_status_r()
{
return m_int_status;
}
u8 com52c50_device::rx_status_r()
{
return m_rx_status | (m_present_address << 1);
}
u8 com52c50_device::tx_status_r()
{
return m_tx_status;
}
void com52c50_device::control_w(u8 data)
{
if (!BIT(data, 0))
{
logerror("%s: Software reset\n", machine().describe_context());
m_int_mask = 0;
m_int_status = 0;
m_zero_fill = 0;
m_rx_status = 0;
m_tx_status = 0;
m_mode = 0;
}
logerror("%s: Writing %02X to control register\n", machine().describe_context(), data);
m_control = data;
}
void com52c50_device::mode_w(u8 data)
{
logerror("%s: Writing %02X to mode register\n", machine().describe_context(), data);
m_mode = data;
}

89
src/devices/machine/com52c50.h Normal file
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@ -0,0 +1,89 @@
// license:BSD-3-Clause
// copyright-holders:AJR
/***************************************************************************
Standard Microsystems Corp. COM52C50 Twinax Interface Circuit (TIC)
****************************************************************************
_____ _____
D2 1 |* \__/ | 28 Vcc
D3 2 | | 27 D1
/WR 3 | | 26 D0
/TXEN 4 | | 25 /CS
/DTX 5 | | 24 /RD
TX 6 | | 23 A0
TX DMA 7 | | 22 A1
RX 8 | COM52C50 | 21 A2
D4 9 | | 20 /INT1
D5 10 | | 19 /INT2
/RESET 11 | | 18 RX DMA
XTAL2 12 | | 17 CLKOUT
XTAL1 13 | | 16 D7
GND 14 |______________| 15 D6
***************************************************************************/
#ifndef MAME_MACHINE_COM52C50_H
#define MAME_MACHINE_COM52C50_H
#pragma once
// ======================> com52c50_device
class com52c50_device : public device_t
{
public:
// device type constructor
com52c50_device(const machine_config &mconfig, const char *tag, device_t *owner, u32 clock);
// callback configuration
auto int1_callback() { return m_int1_callback.bind(); }
auto int2_callback() { return m_int2_callback.bind(); }
auto rx_dma_callback() { return m_rx_dma_callback.bind(); }
auto tx_dma_callback() { return m_tx_dma_callback.bind(); }
// bus interface
u8 rx_buffer_r();
void tx_buffer_w(u8 data);
void tx_buffer_eom_w(u8 data);
void zero_fill_w(u8 data);
void int_mask_w(u8 data);
void address_select_w(u8 data);
u8 present_address_r();
void present_address_w(u8 data);
u8 int_status_r();
u8 rx_status_r();
u8 tx_status_r();
void control_w(u8 data);
void mode_w(u8 data);
void map(address_map &map);
protected:
// device-level overrides
virtual void device_resolve_objects() override;
virtual void device_start() override;
virtual void device_reset() override;
private:
// device callbacks
devcb_write_line m_int1_callback;
devcb_write_line m_int2_callback;
devcb_write_line m_rx_dma_callback;
devcb_write_line m_tx_dma_callback;
// internal state
u8 m_int_mask;
u8 m_int_status;
u8 m_zero_fill;
u8 m_present_address;
u8 m_rx_status;
u8 m_tx_status;
u8 m_control;
u8 m_mode;
};
// device type declaration
DECLARE_DEVICE_TYPE(COM52C50, com52c50_device)
#endif // MAME_MACHINE_COM52C50_H