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// license:BSD-3-Clause
// copyright-holders:Curt Coder
/**********************************************************************
Commodore VIC-1520 Plotter emulation
**********************************************************************/
/*
PA0 ATN
PA1 _CLK
PA5 ATTN ACK
PA6 NRFD
PA7 _DATA IN
PB0 IEEE SELECT
PB1 IEEE SELECT
PB2 IEEE SELECT
PB4 LED
PB5 REMOVE
PB6 CHANGE
PB7 FEED
PC0 _DN
PC1 _UP
PC7 COLOR SENSOR SW
PD0 X MOTOR COM A
PD1 X MOTOR COM B
PD2 X MOTOR COM C
PD3 X MOTOR COM D
PD4 Y MOTOR COM A
PD5 Y MOTOR COM B
PD6 Y MOTOR COM C
PD7 Y MOTOR COM D
*/
#include "vic1520.h"
//**************************************************************************
// MACROS / CONSTANTS
//**************************************************************************
#define M6500_1_TAG "u1"
//**************************************************************************
// DEVICE DEFINITIONS
//**************************************************************************
const device_type VIC1520 = &device_creator<vic1520_t>;
//-------------------------------------------------
// ROM( vic1520 )
//-------------------------------------------------
ROM_START( vic1520 )
ROM_REGION( 0x800, M6500_1_TAG, 0 )
ROM_SYSTEM_BIOS( 0, "r01", "325340-01" )
ROMX_LOAD( "325340-01.u1", 0x000, 0x800, CRC(3757da6f) SHA1(8ab43603f74b0f269bbe890d1939a9ae31307eb1), ROM_BIOS(1) )
ROM_SYSTEM_BIOS( 1, "r03", "325340-03" )
ROMX_LOAD( "325340-03.u1", 0x000, 0x800, CRC(f72ea2b6) SHA1(74c15b2cc1f7632bffa37439609cbdb50b82ea92), ROM_BIOS(2) )
ROM_END
//-------------------------------------------------
// rom_region - device-specific ROM region
//-------------------------------------------------
const rom_entry *vic1520_t::device_rom_region() const
{
return ROM_NAME( vic1520 );
}
//-------------------------------------------------
// ADDRESS_MAP( vic1520_mem )
//-------------------------------------------------
static ADDRESS_MAP_START( vic1520_mem, AS_PROGRAM, 8, vic1520_t )
ADDRESS_MAP_GLOBAL_MASK(0xfff)
AM_RANGE(0x000, 0x03f) AM_RAM
AM_RANGE(0x800, 0xfff) AM_ROM AM_REGION(M6500_1_TAG, 0)
ADDRESS_MAP_END
//-------------------------------------------------
// MACHINE_DRIVER( vic1520 )
//-------------------------------------------------
static MACHINE_CONFIG_FRAGMENT( vic1520 )
MCFG_CPU_ADD(M6500_1_TAG, M6502, XTAL_2MHz) // M6500/1
MCFG_CPU_PROGRAM_MAP(vic1520_mem)
MACHINE_CONFIG_END
//-------------------------------------------------
// machine_config_additions - device-specific
// machine configurations
//-------------------------------------------------
machine_config_constructor vic1520_t::device_mconfig_additions() const
{
return MACHINE_CONFIG_NAME( vic1520 );
}
//-------------------------------------------------
// INPUT_PORTS( vic1520 )
//-------------------------------------------------
static INPUT_PORTS_START( vic1520 )
INPUT_PORTS_END
//-------------------------------------------------
// input_ports - device-specific input ports
//-------------------------------------------------
ioport_constructor vic1520_t::device_input_ports() const
{
return INPUT_PORTS_NAME( vic1520 );
}
//**************************************************************************
// LIVE DEVICE
//**************************************************************************
//-------------------------------------------------
// vic1520_t - constructor
//-------------------------------------------------
vic1520_t::vic1520_t(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock) :
device_t(mconfig, VIC1520, "VIC-1520", tag, owner, clock, "vic1520", __FILE__),
device_cbm_iec_interface(mconfig, *this)
{
}
//-------------------------------------------------
// device_start - device-specific startup
//-------------------------------------------------
void vic1520_t::device_start()
{
}
//-------------------------------------------------
// device_reset - device-specific reset
//-------------------------------------------------
void vic1520_t::device_reset()
{
}
//-------------------------------------------------
// cbm_iec_atn -
//-------------------------------------------------
void vic1520_t::cbm_iec_atn(int state)
{
}
//-------------------------------------------------
// cbm_iec_data -
//-------------------------------------------------
void vic1520_t::cbm_iec_data(int state)
{
}
//-------------------------------------------------
// cbm_iec_reset -
//-------------------------------------------------
void vic1520_t::cbm_iec_reset(int state)
{
if (!state)
{
device_reset();
}
}
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