// license:BSD-3-Clause
// copyright-holders:Curt Coder
/**********************************************************************
Luxor ABC-80 keyboard emulation
Copyright MESS Team.
Visit http://mamedev.org for licensing and usage restrictions.
**********************************************************************/
/*
PCB Layout
----------
KTC 65-01870-001 (dated 1978)
PCB-002B
|---------------|
|---| CN1 |---------------------------------------------------|
| |
| LS06 LS04 LS04 LS06 LS00 LS123 |
| LS74 PROM MCU 4051 900C |
| |
| |
| |
| |
| |
| |
| |
| |
|-----------------------------------------------------------------------|
Notes:
All IC's shown.
MCU - General Instruments 30293B-013 20-04592-013 (?)
PROM - Synertek N82S141N 512x8 bipolar PROM "053"
900C - Ferranti Interdesign 900C custom (?)
CN1 - keyboard data connector
*/
/*
PCB Layout
----------
KTC A65-01870-001 (dated 1983)
PCB-201C
|---------------|
|---| CN1 |---------------------------------------------------|
| |
| LS06 LS04 LS04 LS00 LS123 |
| MCU 4051 900C |
| |
| |
| |
| |
| |
| |
| |
| |
|-----------------------------------------------------------------------|
Notes:
All IC's shown.
MCU - General Instruments 30293B-047 20-04592-047 (?)
900C - Ferranti Interdesign 900C custom (?)
CN1 - keyboard data connector
*/
#include "abc80kb.h"
//**************************************************************************
// MACROS / CONSTANTS
//**************************************************************************
#define I8048_TAG "i8048"
//**************************************************************************
// DEVICE DEFINITIONS
//**************************************************************************
const device_type ABC80_KEYBOARD = &device_creator<abc80_keyboard_device>;
//-------------------------------------------------
// ROM( abc80_keyboard )
//-------------------------------------------------
ROM_START( abc80_keyboard )
ROM_REGION( 0x400, I8048_TAG, 0 )
ROM_LOAD( "053.z5", 0x0000, 0x0400, NO_DUMP )
ROM_END
//-------------------------------------------------
// rom_region - device-specific ROM region
//-------------------------------------------------
const rom_entry *abc80_keyboard_device::device_rom_region() const
{
return ROM_NAME( abc80_keyboard );
}
//-------------------------------------------------
// ADDRESS_MAP( abc80_keyboard_io )
//-------------------------------------------------
static ADDRESS_MAP_START( abc80_keyboard_io, AS_IO, 8, abc80_keyboard_device )
ADDRESS_MAP_END
//-------------------------------------------------
// MACHINE_DRIVER( abc80_keyboard )
//-------------------------------------------------
static MACHINE_CONFIG_FRAGMENT( abc80_keyboard )
MCFG_CPU_ADD(I8048_TAG, I8048, 4000000)
MCFG_CPU_IO_MAP(abc80_keyboard_io)
MCFG_DEVICE_DISABLE()
MACHINE_CONFIG_END
//-------------------------------------------------
// machine_config_additions - device-specific
// machine configurations
//-------------------------------------------------
machine_config_constructor abc80_keyboard_device::device_mconfig_additions() const
{
return MACHINE_CONFIG_NAME( abc80_keyboard );
}
//-------------------------------------------------
// INPUT_PORTS( abc80_keyboard )
//-------------------------------------------------
INPUT_PORTS_START( abc80_keyboard )
INPUT_PORTS_END
//-------------------------------------------------
// input_ports - device-specific input ports
//-------------------------------------------------
ioport_constructor abc80_keyboard_device::device_input_ports() const
{
return INPUT_PORTS_NAME( abc80_keyboard );
}
//**************************************************************************
// LIVE DEVICE
//**************************************************************************
//-------------------------------------------------
// abc80_keyboard_device - constructor
//-------------------------------------------------
abc80_keyboard_device::abc80_keyboard_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock)
: device_t(mconfig, ABC80_KEYBOARD, "ABC-80 Keyboard", tag, owner, clock, "abc80kb", __FILE__),
m_write_keydown(*this),
m_maincpu(*this, I8048_TAG)
{
}
//-------------------------------------------------
// device_start - device-specific startup
//-------------------------------------------------
void abc80_keyboard_device::device_start()
{
// resolve callbacks
m_write_keydown.resolve_safe();
}
//-------------------------------------------------
// device_reset - device-specific reset
//-------------------------------------------------
void abc80_keyboard_device::device_reset()
{
}
//-------------------------------------------------
// data_r - keyboard data read
//-------------------------------------------------
UINT8 abc80_keyboard_device::data_r()
{
return 0;
}