/******************************************************************************
* Microtan 65
*
* system driver
*
* Juergen Buchmueller <pullmoll@t-online.de>, Jul 2000
*
* Thanks go to Geoff Macdonald <mail@geoff.org.uk>
* for his site http:://www.geo255.redhotant.com
* and to Fabrice Frances <frances@ensica.fr>
* for his site http://www.ifrance.com/oric/microtan.html
*
* Microtan65 memory map
*
* range short description
* 0000-01FF SYSRAM system ram
* 0000-003f variables
* 0040-00ff basic
* 0100-01ff stack
* 0200-03ff VIDEORAM display
* 0400-afff RAM main memory
* bc00-bc01 AY8912-0 sound chip #0
* bc02-bc03 AY8912-1 sound chip #1
* bc04 SPACEINV space invasion sound (?)
* bfc0-bfcf VIA6522-0 VIA 6522 #0
* bfd0-bfd3 SIO serial i/o
* bfe0-bfef VIA6522-1 VIA 6522 #0
* bff0 GFX_KBD R: chunky graphics on W: reset KBD interrupt
* bff1 NMI W: start delayed NMI
* bff2 HEX W: hex. keypad column
* bff3 KBD_GFX R: ASCII KBD / hex. keypad row W: chunky graphics off
* c000-e7ff BASIC BASIC Interpreter ROM
* f000-f7ff XBUG XBUG ROM
* f800-ffff TANBUG TANBUG ROM
*
*****************************************************************************/
/* Core includes */
#include "emu.h"
#include "cpu/m6502/m6502.h"
#include "includes/microtan.h"
/* Components */
#include "sound/ay8910.h"
#include "sound/dac.h"
#include "sound/wave.h"
#include "machine/6522via.h"
#include "machine/mos6551.h"
/* Devices */
#include "imagedev/cassette.h"
static ADDRESS_MAP_START( microtan_map, AS_PROGRAM, 8, microtan_state )
AM_RANGE(0x0000, 0x01ff) AM_RAM
AM_RANGE(0x0200, 0x03ff) AM_RAM_WRITE(microtan_videoram_w) AM_SHARE("videoram")
AM_RANGE(0xbc00, 0xbc00) AM_DEVWRITE("ay8910.1", ay8910_device, address_w)
AM_RANGE(0xbc01, 0xbc01) AM_DEVREADWRITE("ay8910.1", ay8910_device, data_r, data_w)
AM_RANGE(0xbc02, 0xbc02) AM_DEVWRITE("ay8910.2", ay8910_device, address_w)
AM_RANGE(0xbc03, 0xbc03) AM_DEVREADWRITE("ay8910.2", ay8910_device, data_r, data_w)
AM_RANGE(0xbfc0, 0xbfcf) AM_DEVREADWRITE("via6522_0", via6522_device, read, write)
AM_RANGE(0xbfd0, 0xbfd3) AM_DEVREADWRITE("acia", mos6551_device, read, write)
AM_RANGE(0xbfe0, 0xbfef) AM_DEVREADWRITE("via6522_1", via6522_device, read, write)
AM_RANGE(0xbff0, 0xbfff) AM_READWRITE(microtan_bffx_r, microtan_bffx_w)
AM_RANGE(0xc000, 0xe7ff) AM_ROM
AM_RANGE(0xf000, 0xffff) AM_ROM
ADDRESS_MAP_END
static INPUT_PORTS_START( microtan )
PORT_START("DSW")
PORT_DIPNAME( 0x03, 0x00, "Memory size" )
PORT_DIPSETTING( 0x00, "1K" )
PORT_DIPSETTING( 0x01, "1K + 7K TANEX" )
PORT_DIPSETTING( 0x02, "1K + 7K TANEX + 40K TANRAM" )
PORT_BIT( 0xfc, 0xfc, IPT_UNUSED )
PORT_START("ROW0")
PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("ESC") PORT_CODE(KEYCODE_ESC)
PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("1 !") PORT_CODE(KEYCODE_1)
PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("2 \"") PORT_CODE(KEYCODE_2)
PORT_BIT( 0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("3 #") PORT_CODE(KEYCODE_3)
PORT_BIT( 0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("4 $") PORT_CODE(KEYCODE_4)
PORT_BIT( 0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("5 %") PORT_CODE(KEYCODE_5)
PORT_BIT( 0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("6 &") PORT_CODE(KEYCODE_6)
PORT_BIT( 0x80, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("7 '") PORT_CODE(KEYCODE_7)
PORT_START("ROW1")
PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("8 *") PORT_CODE(KEYCODE_8)
PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("9 (") PORT_CODE(KEYCODE_9)
PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("0 )") PORT_CODE(KEYCODE_0)
PORT_BIT( 0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("- _") PORT_CODE(KEYCODE_MINUS)
PORT_BIT( 0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("= +") PORT_CODE(KEYCODE_EQUALS)
PORT_BIT( 0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("` ~") PORT_CODE(KEYCODE_TILDE)
PORT_BIT( 0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("BACK SPACE") PORT_CODE(KEYCODE_BACKSPACE)
PORT_BIT( 0x80, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("TAB") PORT_CODE(KEYCODE_TAB)
PORT_START("ROW2")
PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_Q) PORT_CHAR('q') PORT_CHAR('Q')
PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_W) PORT_CHAR('w') PORT_CHAR('W')
PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_E) PORT_CHAR('e') PORT_CHAR('E')
PORT_BIT( 0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_R) PORT_CHAR('R') PORT_CHAR('r')
PORT_BIT( 0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_T) PORT_CHAR('T') PORT_CHAR('t')
PORT_BIT( 0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_Y) PORT_CHAR('Y') PORT_CHAR('y')
PORT_BIT( 0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_U) PORT_CHAR('U') PORT_CHAR('u')
PORT_BIT( 0x80, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_I) PORT_CHAR('I') PORT_CHAR('i')
PORT_START("ROW3")
PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_O) PORT_CHAR('O') PORT_CHAR('o')
PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_P) PORT_CHAR('P') PORT_CHAR('p')
PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("[ {") PORT_CODE(KEYCODE_OPENBRACE)
PORT_BIT( 0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("] }") PORT_CODE(KEYCODE_CLOSEBRACE)
PORT_BIT( 0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("RETURN") PORT_CODE(KEYCODE_ENTER)
PORT_BIT( 0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("DEL") PORT_CODE(KEYCODE_DEL)
PORT_BIT( 0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("CTRL") PORT_CODE(KEYCODE_LCONTROL)
PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("CAPS LOCK") PORT_CODE(KEYCODE_CAPSLOCK) PORT_TOGGLE
PORT_START("ROW4")
PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_A) PORT_CHAR('A') PORT_CHAR('a')
PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_S) PORT_CHAR('S') PORT_CHAR('s')
PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_D) PORT_CHAR('D') PORT_CHAR('d')
PORT_BIT( 0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_F) PORT_CHAR('F') PORT_CHAR('f')
PORT_BIT( 0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_G) PORT_CHAR('G') PORT_CHAR('g')
PORT_BIT( 0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_H) PORT_CHAR('H') PORT_CHAR('h')
PORT_BIT( 0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_J) PORT_CHAR('J') PORT_CHAR('j')
PORT_BIT( 0x80, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_K) PORT_CHAR('K') PORT_CHAR('k')
PORT_START("ROW5")
PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_L) PORT_CHAR('L') PORT_CHAR('l')
PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("; :") PORT_CODE(KEYCODE_COLON)
PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("' \"") PORT_CODE(KEYCODE_QUOTE)
PORT_BIT( 0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("\\ |") PORT_CODE(KEYCODE_ASTERISK)
PORT_BIT( 0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("SHIFT (L)") PORT_CODE(KEYCODE_LSHIFT)
PORT_BIT( 0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_Z) PORT_CHAR('Z') PORT_CHAR('z')
PORT_BIT( 0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_X) PORT_CHAR('X') PORT_CHAR('x')
PORT_BIT( 0x80, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_C) PORT_CHAR('C') PORT_CHAR('c')
PORT_START("ROW6")
PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_V) PORT_CHAR('V') PORT_CHAR('v')
PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_B) PORT_CHAR('B') PORT_CHAR('b')
PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_N) PORT_CHAR('N') PORT_CHAR('n')
PORT_BIT( 0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_M) PORT_CHAR('M') PORT_CHAR('m')
PORT_BIT( 0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME(", <") PORT_CODE(KEYCODE_COMMA)
PORT_BIT( 0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME(". >") PORT_CODE(KEYCODE_STOP)
PORT_BIT( 0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("/ ?") PORT_CODE(KEYCODE_SLASH)
PORT_BIT( 0x80, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("SHIFT (R)") PORT_CODE(KEYCODE_RSHIFT)
PORT_START("ROW7")
PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("LINE FEED")
PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("SPACE") PORT_CODE(KEYCODE_SPACE)
PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("- (KP)") PORT_CODE(KEYCODE_MINUS_PAD)
PORT_BIT( 0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME(", (KP)") PORT_CODE(KEYCODE_PLUS_PAD)
PORT_BIT( 0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("ENTER (KP)") PORT_CODE(KEYCODE_ENTER_PAD)
PORT_BIT( 0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME(". (KP)") PORT_CODE(KEYCODE_DEL_PAD)
PORT_BIT( 0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("0 (KP)") PORT_CODE(KEYCODE_0_PAD)
PORT_BIT( 0x80, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("1 (KP)") PORT_CODE(KEYCODE_1_PAD)
PORT_START("ROW8")
PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("2 (KP)") PORT_CODE(KEYCODE_2_PAD)
PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("3 (KP)") PORT_CODE(KEYCODE_3_PAD)
PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("4 (KP)") PORT_CODE(KEYCODE_4_PAD)
PORT_BIT( 0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("5 (KP)") PORT_CODE(KEYCODE_5_PAD)
PORT_BIT( 0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("6 (KP)") PORT_CODE(KEYCODE_6_PAD)
PORT_BIT( 0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("7 (KP)") PORT_CODE(KEYCODE_7_PAD)
PORT_BIT( 0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("8 (KP)") PORT_CODE(KEYCODE_8_PAD)
PORT_BIT( 0x80, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("9 (KP)") PORT_CODE(KEYCODE_9_PAD)
PORT_START("JOY") // VIA #1 PORT A
PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_START ) PORT_PLAYER(1)
PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_START ) PORT_PLAYER(2)
PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_BUTTON1 )
PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_BUTTON2 )
PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT ) PORT_4WAY
PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_JOYSTICK_UP ) PORT_4WAY
PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT ) PORT_4WAY
PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_JOYSTICK_DOWN ) PORT_4WAY
INPUT_PORTS_END
static const gfx_layout char_layout =
{
8, 16, /* 8 x 16 graphics */
128, /* 128 codes */
1, /* 1 bit per pixel */
{ 0 }, /* no bitplanes */
{ 0, 1, 2, 3, 4, 5, 6, 7 },
{ 0*8, 1*8, 2*8, 3*8, 4*8, 5*8, 6*8, 7*8,
8*8, 9*8,10*8,11*8,12*8,13*8,14*8,15*8 },
8 * 16 /* code takes 8 times 16 bits */
};
static const gfx_layout chunky_layout =
{
8, 16, /* 8 x 16 graphics */
256, /* 256 codes */
1, /* 1 bit per pixel */
{ 0 }, /* no bitplanes */
{ 0, 1, 2, 3, 4, 5, 6, 7 },
{ 0*8, 1*8, 2*8, 3*8, 4*8, 5*8, 6*8, 7*8,
8*8, 9*8,10*8,11*8,12*8,13*8,14*8,15*8 },
8 * 16 /* code takes 8 times 16 bits */
};
static GFXDECODE_START( microtan )
GFXDECODE_ENTRY( "gfx1", 0, char_layout, 0, 1 )
GFXDECODE_ENTRY( "gfx2", 0, chunky_layout, 0, 1 )
GFXDECODE_END
static MACHINE_CONFIG_START( microtan, microtan_state )
/* basic machine hardware */
MCFG_CPU_ADD("maincpu", M6502, 750000) // 750 kHz
MCFG_CPU_PROGRAM_MAP(microtan_map)
MCFG_CPU_VBLANK_INT_DRIVER("screen", microtan_state, microtan_interrupt)
/* video hardware - include overscan */
MCFG_SCREEN_ADD("screen", RASTER)
MCFG_SCREEN_REFRESH_RATE(60)
MCFG_SCREEN_VBLANK_TIME(ATTOSECONDS_IN_USEC(2500)) /* not accurate */
MCFG_SCREEN_SIZE(32*8, 16*16)
MCFG_SCREEN_VISIBLE_AREA(0*8, 32*8-1, 0*16, 16*16-1)
MCFG_SCREEN_UPDATE_DRIVER(microtan_state, screen_update_microtan)
MCFG_SCREEN_PALETTE("palette")
MCFG_GFXDECODE_ADD("gfxdecode", "palette", microtan)
MCFG_PALETTE_ADD_BLACK_AND_WHITE("palette")
/* sound hardware */
MCFG_SPEAKER_STANDARD_MONO("mono")
MCFG_SOUND_ADD("dac", DAC, 0)
MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 1.00)
MCFG_SOUND_WAVE_ADD(WAVE_TAG, "cassette")
MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.25)
MCFG_SOUND_ADD("ay8910.1", AY8910, 1000000)
MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.50)
MCFG_SOUND_ADD("ay8910.2", AY8910, 1000000)
MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.50)
/* snapshot/quickload */
MCFG_SNAPSHOT_ADD("snapshot", microtan_state, microtan, "m65", 0.5)
MCFG_QUICKLOAD_ADD("quickload", microtan_state, microtan, "hex", 0.5)
/* cassette */
MCFG_CASSETTE_ADD( "cassette" )
/* acia */
MCFG_DEVICE_ADD("acia", MOS6551, 0)
MCFG_MOS6551_XTAL(XTAL_1_8432MHz)
/* via */
MCFG_DEVICE_ADD("via6522_0", VIA6522, 0)
MCFG_VIA6522_READPA_HANDLER(READ8(microtan_state, via_0_in_a))
MCFG_VIA6522_WRITEPA_HANDLER(WRITE8(microtan_state, via_0_out_a))
MCFG_VIA6522_WRITEPB_HANDLER(WRITE8(microtan_state, via_0_out_b))
MCFG_VIA6522_CA2_HANDLER(WRITELINE(microtan_state, via_0_out_ca2))
MCFG_VIA6522_CB2_HANDLER(WRITELINE(microtan_state, via_0_out_cb2))
MCFG_VIA6522_IRQ_HANDLER(WRITELINE(microtan_state, via_0_irq))
MCFG_DEVICE_ADD("via6522_1", VIA6522, 0)
MCFG_VIA6522_WRITEPA_HANDLER(WRITE8(microtan_state, via_1_out_a))
MCFG_VIA6522_WRITEPB_HANDLER(WRITE8(microtan_state, via_1_out_b))
MCFG_VIA6522_CA2_HANDLER(WRITELINE(microtan_state, via_1_out_ca2))
MCFG_VIA6522_CB2_HANDLER(WRITELINE(microtan_state, via_1_out_cb2))
MCFG_VIA6522_IRQ_HANDLER(WRITELINE(microtan_state, via_1_irq))
MACHINE_CONFIG_END
ROM_START( microtan )
ROM_REGION( 0x10000, "maincpu", 0 )
ROM_LOAD( "tanex_j2.rom", 0xc000, 0x1000, CRC(3e09d384) SHA1(15a98941a672ff16242cc73f1dcf1d81fccd8910) )
ROM_LOAD( "tanex_h2.rom", 0xd000, 0x1000, CRC(75105113) SHA1(c6fea4d65b7c52f43aa1589cace9467349a0f290) )
ROM_LOAD( "tanex_d3.rom", 0xe000, 0x0800, CRC(ee6e8412) SHA1(7e1bca84bab79d94a4ab8554d23e2bc28ccd0384) )
ROM_LOAD( "tanex_e2.rom", 0xe800, 0x0800, CRC(bd87fd34) SHA1(f41895df4a733dddfaf1c89ecff5040addcab804) )
ROM_LOAD( "tanex_g2.rom", 0xf000, 0x0800, CRC(9fd233ee) SHA1(7b0be2d0402229ec80b062f7a0bed793686bcbf9) )
ROM_LOAD( "tanbug_2.rom", 0xf800, 0x0400, CRC(7e215313) SHA1(c8fb3d33ce2beaf624dc75ec57d34c216b086274) )
ROM_LOAD( "tanbug.rom", 0xfc00, 0x0400, CRC(c8221d9e) SHA1(c7fe4c174523aaaab30be7a8c9baf2bc08b33968) )
ROM_REGION( 0x00800, "gfx1", 0 )
ROM_LOAD( "charset.rom", 0x0000, 0x0800, CRC(3b3c5360) SHA1(a3a2f74149107f8b8f35b15069c71f3aa843d12f) )
ROM_REGION( 0x01000, "gfx2", ROMREGION_ERASEFF )
// initialized in init_microtan
ROM_END
// YEAR NAME PARENT COMPAT MACHINE INPUT INIT COMPANY FULLNAME
COMP( 1979, microtan, 0, 0, microtan, microtan, microtan_state, microtan, "Tangerine", "Microtan 65" , 0)