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mame/src/mess/drivers/dragon.c

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/***************************************************************************
dragon.c
Dragon
***************************************************************************/
#include "includes/dragon.h"
#include "includes/dgnalpha.h"
#include "imagedev/cassette.h"
#include "cpu/m6809/m6809.h"
#include "machine/coco_232.h"
#include "machine/coco_orch90.h"
#include "machine/coco_pak.h"
#include "machine/coco_fdc.h"
#include "machine/coco_multi.h"
#include "formats/coco_dsk.h"
#include "imagedev/flopdrv.h"
//**************************************************************************
// ADDRESS MAPS
//**************************************************************************
//-------------------------------------------------
// ADDRESS_MAP( dragon_mem )
//-------------------------------------------------
static ADDRESS_MAP_START( dragon_mem, AS_PROGRAM, 8, dragon_state )
ADDRESS_MAP_END
//**************************************************************************
// INPUT PORTS
//**************************************************************************
/* Dragon keyboard
PB0 PB1 PB2 PB3 PB4 PB5 PB6 PB7
PA6: Ent Clr Brk N/c N/c N/c N/c Shift
PA5: X Y Z Up Dwn Lft Rgt Space
PA4: P Q R S T U V W
PA3: H I J K L M N O
PA2: @ A B C D E F G
PA1: 8 9 : ; , - . /
PA0: 0 1 2 3 4 5 6 7
*/
static INPUT_PORTS_START( dragon32 )
PORT_START("row0")
PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHANGED_MEMBER(DEVICE_SELF, dragon_state, keyboard_changed, NULL) PORT_CODE(KEYCODE_0) PORT_CHAR('0')
PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHANGED_MEMBER(DEVICE_SELF, dragon_state, keyboard_changed, NULL) PORT_CODE(KEYCODE_1) PORT_CHAR('1') PORT_CHAR('!')
PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHANGED_MEMBER(DEVICE_SELF, dragon_state, keyboard_changed, NULL) PORT_CODE(KEYCODE_2) PORT_CHAR('2') PORT_CHAR('\"')
PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHANGED_MEMBER(DEVICE_SELF, dragon_state, keyboard_changed, NULL) PORT_CODE(KEYCODE_3) PORT_CHAR('3') PORT_CHAR('#')
PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHANGED_MEMBER(DEVICE_SELF, dragon_state, keyboard_changed, NULL) PORT_CODE(KEYCODE_4) PORT_CHAR('4') PORT_CHAR('$')
PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHANGED_MEMBER(DEVICE_SELF, dragon_state, keyboard_changed, NULL) PORT_CODE(KEYCODE_5) PORT_CHAR('5') PORT_CHAR('%')
PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHANGED_MEMBER(DEVICE_SELF, dragon_state, keyboard_changed, NULL) PORT_CODE(KEYCODE_6) PORT_CHAR('6') PORT_CHAR('&')
PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHANGED_MEMBER(DEVICE_SELF, dragon_state, keyboard_changed, NULL) PORT_CODE(KEYCODE_7) PORT_CHAR('7') PORT_CHAR('\'')
PORT_START("row1")
PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHANGED_MEMBER(DEVICE_SELF, dragon_state, keyboard_changed, NULL) PORT_CODE(KEYCODE_8) PORT_CHAR('8') PORT_CHAR('(')
PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHANGED_MEMBER(DEVICE_SELF, dragon_state, keyboard_changed, NULL) PORT_CODE(KEYCODE_9) PORT_CHAR('9') PORT_CHAR(')')
PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHANGED_MEMBER(DEVICE_SELF, dragon_state, keyboard_changed, NULL) PORT_CODE(KEYCODE_COLON) PORT_CHAR(':') PORT_CHAR('*')
PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHANGED_MEMBER(DEVICE_SELF, dragon_state, keyboard_changed, NULL) PORT_CODE(KEYCODE_QUOTE) PORT_CHAR(';') PORT_CHAR('+')
PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHANGED_MEMBER(DEVICE_SELF, dragon_state, keyboard_changed, NULL) PORT_CODE(KEYCODE_COMMA) PORT_CHAR(',') PORT_CHAR('<')
PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHANGED_MEMBER(DEVICE_SELF, dragon_state, keyboard_changed, NULL) PORT_CODE(KEYCODE_MINUS) PORT_CHAR('-') PORT_CHAR('=')
PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHANGED_MEMBER(DEVICE_SELF, dragon_state, keyboard_changed, NULL) PORT_CODE(KEYCODE_STOP) PORT_CHAR('.') PORT_CHAR('>')
PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHANGED_MEMBER(DEVICE_SELF, dragon_state, keyboard_changed, NULL) PORT_CODE(KEYCODE_SLASH) PORT_CHAR('/') PORT_CHAR('?')
PORT_START("row2")
PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHANGED_MEMBER(DEVICE_SELF, dragon_state, keyboard_changed, NULL) PORT_CODE(KEYCODE_ASTERISK) PORT_CHAR('@')
PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHANGED_MEMBER(DEVICE_SELF, dragon_state, keyboard_changed, NULL) PORT_CODE(KEYCODE_A) PORT_CHAR('A')
PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHANGED_MEMBER(DEVICE_SELF, dragon_state, keyboard_changed, NULL) PORT_CODE(KEYCODE_B) PORT_CHAR('B')
PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHANGED_MEMBER(DEVICE_SELF, dragon_state, keyboard_changed, NULL) PORT_CODE(KEYCODE_C) PORT_CHAR('C')
PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHANGED_MEMBER(DEVICE_SELF, dragon_state, keyboard_changed, NULL) PORT_CODE(KEYCODE_D) PORT_CHAR('D')
PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHANGED_MEMBER(DEVICE_SELF, dragon_state, keyboard_changed, NULL) PORT_CODE(KEYCODE_E) PORT_CHAR('E')
PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHANGED_MEMBER(DEVICE_SELF, dragon_state, keyboard_changed, NULL) PORT_CODE(KEYCODE_F) PORT_CHAR('F')
PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHANGED_MEMBER(DEVICE_SELF, dragon_state, keyboard_changed, NULL) PORT_CODE(KEYCODE_G) PORT_CHAR('G')
PORT_START("row3")
PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHANGED_MEMBER(DEVICE_SELF, dragon_state, keyboard_changed, NULL) PORT_CODE(KEYCODE_H) PORT_CHAR('H')
PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHANGED_MEMBER(DEVICE_SELF, dragon_state, keyboard_changed, NULL) PORT_CODE(KEYCODE_I) PORT_CHAR('I')
PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHANGED_MEMBER(DEVICE_SELF, dragon_state, keyboard_changed, NULL) PORT_CODE(KEYCODE_J) PORT_CHAR('J')
PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHANGED_MEMBER(DEVICE_SELF, dragon_state, keyboard_changed, NULL) PORT_CODE(KEYCODE_K) PORT_CHAR('K')
PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHANGED_MEMBER(DEVICE_SELF, dragon_state, keyboard_changed, NULL) PORT_CODE(KEYCODE_L) PORT_CHAR('L')
PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHANGED_MEMBER(DEVICE_SELF, dragon_state, keyboard_changed, NULL) PORT_CODE(KEYCODE_M) PORT_CHAR('M')
PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHANGED_MEMBER(DEVICE_SELF, dragon_state, keyboard_changed, NULL) PORT_CODE(KEYCODE_N) PORT_CHAR('N')
PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHANGED_MEMBER(DEVICE_SELF, dragon_state, keyboard_changed, NULL) PORT_CODE(KEYCODE_O) PORT_CHAR('O')
PORT_START("row4")
PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHANGED_MEMBER(DEVICE_SELF, dragon_state, keyboard_changed, NULL) PORT_CODE(KEYCODE_P) PORT_CHAR('P')
PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHANGED_MEMBER(DEVICE_SELF, dragon_state, keyboard_changed, NULL) PORT_CODE(KEYCODE_Q) PORT_CHAR('Q')
PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHANGED_MEMBER(DEVICE_SELF, dragon_state, keyboard_changed, NULL) PORT_CODE(KEYCODE_R) PORT_CHAR('R')
PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHANGED_MEMBER(DEVICE_SELF, dragon_state, keyboard_changed, NULL) PORT_CODE(KEYCODE_S) PORT_CHAR('S')
PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHANGED_MEMBER(DEVICE_SELF, dragon_state, keyboard_changed, NULL) PORT_CODE(KEYCODE_T) PORT_CHAR('T')
PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHANGED_MEMBER(DEVICE_SELF, dragon_state, keyboard_changed, NULL) PORT_CODE(KEYCODE_U) PORT_CHAR('U')
PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHANGED_MEMBER(DEVICE_SELF, dragon_state, keyboard_changed, NULL) PORT_CODE(KEYCODE_V) PORT_CHAR('V')
PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHANGED_MEMBER(DEVICE_SELF, dragon_state, keyboard_changed, NULL) PORT_CODE(KEYCODE_W) PORT_CHAR('W')
PORT_START("row5")
PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHANGED_MEMBER(DEVICE_SELF, dragon_state, keyboard_changed, NULL) PORT_CODE(KEYCODE_X) PORT_CHAR('X')
PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHANGED_MEMBER(DEVICE_SELF, dragon_state, keyboard_changed, NULL) PORT_CODE(KEYCODE_Y) PORT_CHAR('Y')
PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHANGED_MEMBER(DEVICE_SELF, dragon_state, keyboard_changed, NULL) PORT_CODE(KEYCODE_Z) PORT_CHAR('Z')
PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHANGED_MEMBER(DEVICE_SELF, dragon_state, keyboard_changed, NULL) PORT_NAME("UP") PORT_CODE(KEYCODE_UP) PORT_CHAR('^')
PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHANGED_MEMBER(DEVICE_SELF, dragon_state, keyboard_changed, NULL) PORT_NAME("DOWN") PORT_CODE(KEYCODE_DOWN) PORT_CHAR(10)
PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHANGED_MEMBER(DEVICE_SELF, dragon_state, keyboard_changed, NULL) PORT_NAME("LEFT") PORT_CODE(KEYCODE_LEFT) PORT_CODE(KEYCODE_BACKSPACE) PORT_CHAR(8)
PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHANGED_MEMBER(DEVICE_SELF, dragon_state, keyboard_changed, NULL) PORT_NAME("RIGHT") PORT_CODE(KEYCODE_RIGHT) PORT_CHAR(9)
PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHANGED_MEMBER(DEVICE_SELF, dragon_state, keyboard_changed, NULL) PORT_NAME("SPACE") PORT_CODE(KEYCODE_SPACE) PORT_CHAR(' ')
PORT_START("row6")
PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHANGED_MEMBER(DEVICE_SELF, dragon_state, keyboard_changed, NULL) PORT_NAME("ENTER") PORT_CODE(KEYCODE_ENTER) PORT_CHAR(13)
PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHANGED_MEMBER(DEVICE_SELF, dragon_state, keyboard_changed, NULL) PORT_NAME("CLEAR") PORT_CODE(KEYCODE_HOME) PORT_CHAR(12)
PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHANGED_MEMBER(DEVICE_SELF, dragon_state, keyboard_changed, NULL) PORT_NAME("BREAK") PORT_CODE(KEYCODE_END) PORT_CODE(KEYCODE_ESC) PORT_CHAR(27)
PORT_BIT(0x78, IP_ACTIVE_LOW, IPT_UNUSED)
PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHANGED_MEMBER(DEVICE_SELF, dragon_state, keyboard_changed, NULL) PORT_NAME("SHIFT") PORT_CODE(KEYCODE_LSHIFT) PORT_CODE(KEYCODE_RSHIFT) PORT_CHAR(UCHAR_SHIFT_1)
INPUT_PORTS_END
static SLOT_INTERFACE_START(dragon_cart)
SLOT_INTERFACE("dragon_fdc", DRAGON_FDC)
SLOT_INTERFACE("sdtandy_fdc", SDTANDY_FDC)
SLOT_INTERFACE("pak", COCO_PAK)
SLOT_INTERFACE_END
static const floppy_interface coco_floppy_interface =
{
DEVCB_NULL,
DEVCB_NULL,
DEVCB_NULL,
DEVCB_NULL,
DEVCB_NULL,
FLOPPY_STANDARD_5_25_DSHD,
LEGACY_FLOPPY_OPTIONS_NAME(coco),
NULL,
NULL
};
static MACHINE_CONFIG_START( dragon_base, dragon_state )
// basic machine hardware
MCFG_CPU_ADD("maincpu", M6809E, XTAL_4_433619MHz)
MCFG_CPU_PROGRAM_MAP(dragon_mem)
// devices
MCFG_PIA6821_ADD(PIA0_TAG, dragon_state::pia0_config)
MCFG_PIA6821_ADD(PIA1_TAG, dragon_state::pia1_config)
MCFG_SAM6883_ADD(SAM_TAG, XTAL_4_433619MHz, dragon_state::sam6883_config)
MCFG_CASSETTE_ADD(CASSETTE_TAG, dragon_state::coco_cassette_interface)
MCFG_PRINTER_ADD(PRINTER_TAG)
// video hardware
MCFG_SCREEN_MC6847_PAL_ADD(SCREEN_TAG, VDG_TAG)
MCFG_MC6847_ADD(VDG_TAG, MC6847_PAL, XTAL_4_433619MHz, dragon_state::mc6847_config)
// sound hardware
MCFG_FRAGMENT_ADD( coco_sound )
MACHINE_CONFIG_END
static MACHINE_CONFIG_DERIVED( dragon32, dragon_base )
// internal ram
MCFG_RAM_ADD(RAM_TAG)
MCFG_RAM_DEFAULT_SIZE("32K")
MCFG_RAM_EXTRA_OPTIONS("64K")
// cartridge
MCFG_COCO_CARTRIDGE_ADD(CARTRIDGE_TAG, dragon_state::cartridge_config, dragon_cart, "dragon_fdc", NULL)
MACHINE_CONFIG_END
static MACHINE_CONFIG_DERIVED_CLASS( dragon64, dragon_base, dragon64_state )
// internal ram
MCFG_RAM_ADD(RAM_TAG)
MCFG_RAM_DEFAULT_SIZE("64K")
// cartridge
MCFG_COCO_CARTRIDGE_ADD(CARTRIDGE_TAG, dragon_state::cartridge_config, dragon_cart, "dragon_fdc", NULL)
// acia
MCFG_MOS6551_ADD("acia", XTAL_1_8432MHz, NULL)
MACHINE_CONFIG_END
static MACHINE_CONFIG_DERIVED_CLASS( d64plus, dragon_base, dragon64_state )
// internal ram
MCFG_RAM_ADD(RAM_TAG)
MCFG_RAM_DEFAULT_SIZE("128K")
// cartridge
MCFG_COCO_CARTRIDGE_ADD(CARTRIDGE_TAG, dragon_state::cartridge_config, dragon_cart, "dragon_fdc", NULL)
// acia
MCFG_MOS6551_ADD("acia", XTAL_1_8432MHz, NULL)
MACHINE_CONFIG_END
static MACHINE_CONFIG_DERIVED_CLASS( dgnalpha, dragon_base, dragon_alpha_state )
// internal ram
MCFG_RAM_ADD(RAM_TAG)
MCFG_RAM_DEFAULT_SIZE("64K")
// cartridge
MCFG_COCO_CARTRIDGE_ADD(CARTRIDGE_TAG, dragon_alpha_state::cartridge_config, dragon_cart, NULL, NULL)
// acia
MCFG_MOS6551_ADD("acia", XTAL_1_8432MHz, NULL)
// floppy
MCFG_LEGACY_FLOPPY_4_DRIVES_ADD(coco_floppy_interface)
MCFG_WD2797_ADD(WD2797_TAG, dragon_alpha_state::fdc_interface)
// sound hardware
MCFG_SOUND_ADD(AY8912_TAG, AY8912, 1000000)
MCFG_SOUND_CONFIG(dragon_alpha_state::ay8912_interface)
MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.75)
// pia 2
MCFG_PIA6821_ADD( PIA2_TAG, dragon_alpha_state::pia2_config )
MACHINE_CONFIG_END
static MACHINE_CONFIG_DERIVED( tanodr64, dragon_base )
// internal ram
MCFG_RAM_ADD(RAM_TAG)
MCFG_RAM_DEFAULT_SIZE("64K")
// cartridge
MCFG_COCO_CARTRIDGE_ADD(CARTRIDGE_TAG, dragon_state::cartridge_config, dragon_cart, "sdtandy_fdc", NULL)
MACHINE_CONFIG_END
/***************************************************************************
Game driver(s)
***************************************************************************/
ROM_START(dragon32)
ROM_REGION(0xC000, "maincpu",0)
ROM_LOAD("d32.rom", 0x0000, 0x4000, CRC(e3879310) SHA1(f2dab125673e653995a83bf6b793e3390ec7f65a))
ROM_END
ROM_START(dragon64)
ROM_REGION(0x10000,"maincpu",0)
ROM_LOAD("d64_1.rom", 0x0000, 0x4000, CRC(60a4634c) SHA1(f119506eaa3b4b70b9aa0dd83761e8cbe043d042))
ROM_LOAD("d64_2.rom", 0x8000, 0x4000, CRC(17893a42) SHA1(e3c8986bb1d44269c4587b04f1ca27a70b0aaa2e))
ROM_END
ROM_START(dragon200)
ROM_REGION( 0x10000, "maincpu", ROMREGION_ERASEFF )
ROM_LOAD( "ic18.rom", 0x0000, 0x4000, CRC(84f68bf9) SHA1(1983b4fb398e3dd9668d424c666c5a0b3f1e2b69))
ROM_LOAD( "ic17.rom", 0x8000, 0x4000, CRC(17893a42) SHA1(e3c8986bb1d44269c4587b04f1ca27a70b0aaa2e))
ROM_END
ROM_START(d64plus)
ROM_REGION(0x10000,"maincpu",0)
ROM_LOAD("d64_1.rom", 0x0000, 0x4000, CRC(60a4634c) SHA1(f119506eaa3b4b70b9aa0dd83761e8cbe043d042))
ROM_LOAD("d64_2.rom", 0x8000, 0x4000, CRC(17893a42) SHA1(e3c8986bb1d44269c4587b04f1ca27a70b0aaa2e))
ROM_END
ROM_START(tanodr64)
ROM_REGION(0x10000,"maincpu",0)
ROM_LOAD("d64_1.rom", 0x0000, 0x4000, CRC(60a4634c) SHA1(f119506eaa3b4b70b9aa0dd83761e8cbe043d042))
ROM_LOAD("d64_2.rom", 0x8000, 0x4000, CRC(17893a42) SHA1(e3c8986bb1d44269c4587b04f1ca27a70b0aaa2e))
ROM_END
ROM_START(dgnalpha)
ROM_REGION(0xC000,"maincpu",1)
ROM_LOAD("alpha_bt.rom", 0x2000, 0x2000, CRC(c3dab585) SHA1(4a5851aa66eb426e9bb0bba196f1e02d48156068))
ROM_LOAD("alpha_ba.rom", 0x8000, 0x4000, CRC(84f68bf9) SHA1(1983b4fb398e3dd9668d424c666c5a0b3f1e2b69))
ROM_END
COMP( 1982, dragon32, coco, 0, dragon32, dragon32, driver_device, 0, "Dragon Data Ltd", "Dragon 32", 0)
COMP( 1983, dragon64, coco, 0, dragon64, dragon32, driver_device, 0, "Dragon Data Ltd", "Dragon 64", 0)
COMP( 1983, dragon200, coco, 0, dragon64, dragon32, driver_device, 0, "Dragon Data Ltd", "Dragon 200", 0)
COMP( 1983, d64plus, coco, 0, d64plus, dragon32, driver_device, 0, "Dragon Data Ltd", "Dragon 64 Plus", 0)
COMP( 1983, tanodr64, coco, 0, tanodr64, dragon32, driver_device, 0, "Dragon Data Ltd / Tano Ltd", "Tano Dragon 64 (NTSC)", 0)
COMP( 1984, dgnalpha, coco, 0, dgnalpha, dragon32, driver_device, 0, "Dragon Data Ltd", "Dragon Alpha Prototype", 0)
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