summaryrefslogtreecommitdiffstatshomepage
path: root/src/mame/drivers/pk8020.c
diff options
context:
space:
mode:
Diffstat (limited to 'src/mame/drivers/pk8020.c')
-rw-r--r--src/mame/drivers/pk8020.c292
1 files changed, 292 insertions, 0 deletions
diff --git a/src/mame/drivers/pk8020.c b/src/mame/drivers/pk8020.c
new file mode 100644
index 00000000000..1b8e83ef527
--- /dev/null
+++ b/src/mame/drivers/pk8020.c
@@ -0,0 +1,292 @@
+// license:BSD-3-Clause
+// copyright-holders:Miodrag Milanovic
+/***************************************************************************
+
+ PK-8020 driver by Miodrag Milanovic
+ based on work of Sergey Erokhin from pk8020.narod.ru
+
+ 18/07/2008 Preliminary driver.
+
+****************************************************************************/
+
+
+#include "emu.h"
+#include "cpu/i8085/i8085.h"
+#include "machine/i8255.h"
+#include "imagedev/flopdrv.h"
+#include "formats/pk8020_dsk.h"
+#include "includes/pk8020.h"
+#include "machine/ram.h"
+
+/* Address maps */
+static ADDRESS_MAP_START(pk8020_mem, AS_PROGRAM, 8, pk8020_state )
+ADDRESS_MAP_END
+
+static ADDRESS_MAP_START( pk8020_io , AS_IO, 8, pk8020_state )
+ ADDRESS_MAP_GLOBAL_MASK(0xff)
+ ADDRESS_MAP_UNMAP_HIGH
+ADDRESS_MAP_END
+
+/* Input ports */
+static INPUT_PORTS_START( pk8020 )
+ PORT_START("LINE0")
+ PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("@") PORT_CODE(KEYCODE_F9)
+ PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("A") PORT_CODE(KEYCODE_A)
+ PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("B") PORT_CODE(KEYCODE_B)
+ PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("C") PORT_CODE(KEYCODE_C)
+ PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("D") PORT_CODE(KEYCODE_D)
+ PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("E") PORT_CODE(KEYCODE_E)
+ PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("F") PORT_CODE(KEYCODE_F)
+ PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("G") PORT_CODE(KEYCODE_G)
+ PORT_START("LINE1")
+ PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("H") PORT_CODE(KEYCODE_H)
+ PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("I") PORT_CODE(KEYCODE_I)
+ PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("J") PORT_CODE(KEYCODE_J)
+ PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("K") PORT_CODE(KEYCODE_K)
+ PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("L") PORT_CODE(KEYCODE_L)
+ PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("M") PORT_CODE(KEYCODE_M)
+ PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("N") PORT_CODE(KEYCODE_N)
+ PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("O") PORT_CODE(KEYCODE_O)
+ PORT_START("LINE2")
+ PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("P") PORT_CODE(KEYCODE_P)
+ PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("Q") PORT_CODE(KEYCODE_Q)
+ PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("R") PORT_CODE(KEYCODE_R)
+ PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("S") PORT_CODE(KEYCODE_S)
+ PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("T") PORT_CODE(KEYCODE_T)
+ PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("U") PORT_CODE(KEYCODE_U)
+ PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("V") PORT_CODE(KEYCODE_V)
+ PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("W") PORT_CODE(KEYCODE_W)
+ PORT_START("LINE3")
+ PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("X") PORT_CODE(KEYCODE_X)
+ PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("Y") PORT_CODE(KEYCODE_Y)
+ PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("Z") PORT_CODE(KEYCODE_Z)
+ PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("[") PORT_CODE(KEYCODE_OPENBRACE)
+ PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("\\") PORT_CODE(KEYCODE_BACKSLASH)
+ PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("]") PORT_CODE(KEYCODE_CLOSEBRACE)
+ PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("^") PORT_CODE(KEYCODE_TILDE)
+ PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("_") PORT_CODE(KEYCODE_EQUALS)
+ PORT_START("LINE4")
+ PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("0") PORT_CODE(KEYCODE_0)
+ 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("LINE5")
+ 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(":") PORT_CODE(KEYCODE_QUOTE)
+ PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME(";") PORT_CODE(KEYCODE_COLON)
+ 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_MINUS)
+ PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME(".") PORT_CODE(KEYCODE_STOP)
+ PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("?") PORT_CODE(KEYCODE_SLASH)
+ PORT_START("LINE6")
+ PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("Enter") PORT_CODE(KEYCODE_ENTER)
+ PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("STRN") PORT_CODE(KEYCODE_MINUS_PAD)
+ PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("STOP") PORT_CODE(KEYCODE_F12)
+ PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("IZ") PORT_CODE(KEYCODE_ASTERISK)
+ PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("VZ") PORT_CODE(KEYCODE_SLASH_PAD)
+ PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("Backspace") PORT_CODE(KEYCODE_BACKSPACE)
+ PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("Tab") PORT_CODE(KEYCODE_TAB)
+ PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("Space") PORT_CODE(KEYCODE_SPACE)
+ PORT_START("LINE7")
+ // All keys in this line are reversed logic
+ PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("Left Shift") PORT_CODE(KEYCODE_LSHIFT)
+ PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("Alf") PORT_CODE(KEYCODE_F11)
+ PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("Graf") PORT_CODE(KEYCODE_F10)
+ PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("Prf") PORT_CODE(KEYCODE_ESC)
+ PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("Sel") PORT_CODE(KEYCODE_RCONTROL)
+ PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("Upr") PORT_CODE(KEYCODE_LCONTROL)
+ PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("OO") PORT_CODE(KEYCODE_LALT)
+ PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("Right Shift") PORT_CODE(KEYCODE_RSHIFT)
+ PORT_START("LINE8")
+ PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("Num 0") PORT_CODE(KEYCODE_0_PAD)
+ PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("Num 1") PORT_CODE(KEYCODE_1_PAD)
+ PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("Num 2") PORT_CODE(KEYCODE_2_PAD)
+ PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("Num 3") PORT_CODE(KEYCODE_3_PAD)
+ PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("Num 4") PORT_CODE(KEYCODE_4_PAD)
+ PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("Num 5") PORT_CODE(KEYCODE_5_PAD)
+ PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("Num 6") PORT_CODE(KEYCODE_6_PAD)
+ PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("Num 7") PORT_CODE(KEYCODE_7_PAD)
+ PORT_START("LINE9")
+ PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("Num 8") PORT_CODE(KEYCODE_8_PAD)
+ PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("Num 9") PORT_CODE(KEYCODE_9_PAD)
+ PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_UNUSED)
+ PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_UNUSED)
+ PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_UNUSED)
+ PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_UNUSED)
+ PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("Num .") PORT_CODE(KEYCODE_DEL_PAD)
+ PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_UNUSED)
+ PORT_START("LINE10")
+ PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("F1") PORT_CODE(KEYCODE_F1)
+ PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("F2") PORT_CODE(KEYCODE_F2)
+ PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("F3") PORT_CODE(KEYCODE_F3)
+ PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("F4") PORT_CODE(KEYCODE_F4)
+ PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("F5") PORT_CODE(KEYCODE_F5)
+ PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_UNUSED)
+ PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_UNUSED)
+ PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_UNUSED)
+ PORT_START("LINE11")
+ PORT_BIT(0xFF, IP_ACTIVE_HIGH, IPT_UNUSED)
+ PORT_START("LINE12")
+ PORT_BIT(0xFF, IP_ACTIVE_HIGH, IPT_UNUSED)
+ PORT_START("LINE13")
+ PORT_BIT(0xFF, IP_ACTIVE_HIGH, IPT_UNUSED)
+ PORT_START("LINE14")
+ PORT_BIT(0xFF, IP_ACTIVE_HIGH, IPT_UNUSED)
+ PORT_START("LINE15")
+ PORT_BIT(0xFF, IP_ACTIVE_HIGH, IPT_UNUSED)
+INPUT_PORTS_END
+
+
+/* F4 Character Displayer */
+static const gfx_layout pk8020_charlayout =
+{
+ 8, 16, /* 8 x 16 characters */
+ 512, /* 512 characters */
+ 1, /* 1 bits per pixel */
+ { 0 }, /* no bitplanes */
+ /* x offsets */
+ { 0, 1, 2, 3, 4, 5, 6, 7 },
+ /* y offsets */
+ { 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 /* every char takes 16 bytes */
+};
+
+static GFXDECODE_START( pk8020 )
+ GFXDECODE_ENTRY( "gfx1", 0x0000, pk8020_charlayout, 0, 4 )
+GFXDECODE_END
+
+
+FLOPPY_FORMATS_MEMBER( pk8020_state::floppy_formats )
+ FLOPPY_PK8020_FORMAT
+FLOPPY_FORMATS_END
+
+static SLOT_INTERFACE_START( pk8020_floppies )
+ SLOT_INTERFACE("qd", FLOPPY_525_QD)
+SLOT_INTERFACE_END
+
+
+/* Machine driver */
+static MACHINE_CONFIG_START( pk8020, pk8020_state )
+ /* basic machine hardware */
+ MCFG_CPU_ADD("maincpu", I8080, XTAL_20MHz / 8)
+ MCFG_CPU_PROGRAM_MAP(pk8020_mem)
+ MCFG_CPU_IO_MAP(pk8020_io)
+ MCFG_CPU_VBLANK_INT_DRIVER("screen", pk8020_state, pk8020_interrupt)
+ MCFG_CPU_IRQ_ACKNOWLEDGE_DEVICE("pic8259", pic8259_device, inta_cb)
+
+ /* video hardware */
+ MCFG_SCREEN_ADD("screen", RASTER)
+ MCFG_SCREEN_REFRESH_RATE(50)
+ MCFG_SCREEN_VBLANK_TIME(ATTOSECONDS_IN_USEC(2500)) /* not accurate */
+ MCFG_SCREEN_SIZE(512, 256)
+ MCFG_SCREEN_VISIBLE_AREA(0, 512-1, 0, 256-1)
+ MCFG_SCREEN_UPDATE_DRIVER(pk8020_state, screen_update_pk8020)
+ MCFG_SCREEN_PALETTE("palette")
+
+ MCFG_GFXDECODE_ADD("gfxdecode", "palette", pk8020)
+ MCFG_PALETTE_ADD("palette", 16)
+ MCFG_PALETTE_INIT_OWNER(pk8020_state, pk8020)
+
+ MCFG_DEVICE_ADD("ppi8255_1", I8255, 0)
+ MCFG_I8255_IN_PORTA_CB(READ8(pk8020_state, pk8020_porta_r))
+ MCFG_I8255_OUT_PORTB_CB(WRITE8(pk8020_state, pk8020_portb_w))
+ MCFG_I8255_IN_PORTC_CB(READ8(pk8020_state, pk8020_portc_r))
+ MCFG_I8255_OUT_PORTC_CB(WRITE8(pk8020_state, pk8020_portc_w))
+
+ MCFG_DEVICE_ADD("ppi8255_2", I8255, 0)
+ MCFG_I8255_OUT_PORTC_CB(WRITE8(pk8020_state, pk8020_2_portc_w))
+
+ MCFG_DEVICE_ADD("ppi8255_3", I8255, 0)
+
+ MCFG_DEVICE_ADD("pit8253", PIT8253, 0)
+ MCFG_PIT8253_CLK0(XTAL_20MHz / 10)
+ MCFG_PIT8253_OUT0_HANDLER(WRITELINE(pk8020_state,pk8020_pit_out0))
+ MCFG_PIT8253_CLK1(XTAL_20MHz / 10)
+ MCFG_PIT8253_OUT1_HANDLER(WRITELINE(pk8020_state,pk8020_pit_out1))
+ MCFG_PIT8253_CLK2((XTAL_20MHz / 8) / 164)
+ MCFG_PIT8253_OUT2_HANDLER(DEVWRITELINE("pic8259", pic8259_device, ir5_w))
+
+ MCFG_PIC8259_ADD("pic8259", INPUTLINE("maincpu", 0), VCC, NULL)
+ MCFG_DEVICE_ADD("rs232", I8251, 0)
+ MCFG_DEVICE_ADD("lan", I8251, 0)
+
+ MCFG_FD1793_ADD("wd1793", XTAL_20MHz / 20)
+
+ MCFG_FLOPPY_DRIVE_ADD("wd1793:0", pk8020_floppies, "qd", pk8020_state::floppy_formats)
+ MCFG_FLOPPY_DRIVE_ADD("wd1793:1", pk8020_floppies, "qd", pk8020_state::floppy_formats)
+ MCFG_FLOPPY_DRIVE_ADD("wd1793:2", pk8020_floppies, "qd", pk8020_state::floppy_formats)
+ MCFG_FLOPPY_DRIVE_ADD("wd1793:3", pk8020_floppies, "qd", pk8020_state::floppy_formats)
+
+ MCFG_SOFTWARE_LIST_ADD("flop_list", "korvet_flop")
+
+ /* audio hardware */
+ MCFG_SPEAKER_STANDARD_MONO("mono")
+ MCFG_SOUND_ADD("speaker", SPEAKER_SOUND, 0)
+ MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.25)
+ MCFG_SOUND_WAVE_ADD(WAVE_TAG, "cassette")
+ MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.25)
+
+ MCFG_CASSETTE_ADD( "cassette" )
+ MCFG_CASSETTE_DEFAULT_STATE(CASSETTE_PLAY)
+
+ /* internal ram */
+ MCFG_RAM_ADD(RAM_TAG)
+ MCFG_RAM_DEFAULT_SIZE("258K") //64 + 4*48 + 2
+ MCFG_RAM_DEFAULT_VALUE(0x00)
+MACHINE_CONFIG_END
+
+/* ROM definition */
+
+ROM_START( korvet )
+ ROM_REGION( 0x16000, "maincpu", ROMREGION_ERASEFF )
+ ROM_DEFAULT_BIOS("v11")
+ ROM_SYSTEM_BIOS(0, "v11", "v1.1")
+ ROMX_LOAD( "korvet11.rom", 0x10000, 0x6000, CRC(81bdc2af) SHA1(c3484c3f1f3d252475979283c073286b8661d2b9), ROM_BIOS(1))
+ ROM_SYSTEM_BIOS(1, "v20", "v2.0")
+ ROMX_LOAD( "korvet20.rom", 0x10000, 0x6000, CRC(d6c36a45) SHA1(dba67e63457251814ad5c0fe6bb6d584eea5c7d2), ROM_BIOS(2))
+ ROM_SYSTEM_BIOS(2, "cpm", "cpm")
+ ROMX_LOAD( "cpm.rom", 0x10000, 0x4000, CRC(7a38d7f6) SHA1(fec6623291a38990b003e818683cd5edfb494c36), ROM_BIOS(3))
+ ROM_REGION( 0x2000, "gfx1", 0 )
+ ROM_LOAD( "korvet2.fnt", 0x0000, 0x2000, CRC(fb1cd3d4) SHA1(58f1d6e393253b1e8b497ce0880b6eff6d85b42a))
+ROM_END
+
+ROM_START( neiva )
+ ROM_REGION( 0x16000, "maincpu", ROMREGION_ERASEFF )
+ ROM_LOAD( "neiva_d22.bin", 0x10000, 0x2000, CRC(9cc28f67) SHA1(68f390e846e1290df68419d522088d5325682945))
+ ROM_LOAD( "neiva_d23.bin", 0x12000, 0x2000, CRC(31b53dc4) SHA1(607f2a2d8b1de469125c6c02b9ffc65649b753a2))
+ ROM_LOAD( "neiva_d24.bin", 0x14000, 0x2000, CRC(d05c80df) SHA1(1ec2fa9983be5579abff7247fc9b98fe50661bd9))
+ ROM_REGION( 0x2000, "gfx1", 0 )
+ ROM_LOAD( "neiva_d21.bin", 0x0000, 0x2000, CRC(fb1cd3d4) SHA1(58f1d6e393253b1e8b497ce0880b6eff6d85b42a))
+ROM_END
+
+ROM_START( kontur )
+ ROM_REGION( 0x16000, "maincpu", ROMREGION_ERASEFF )
+ ROM_SYSTEM_BIOS(0, "v1", "v1")
+ ROMX_LOAD( "kontur.rom", 0x10000, 0x2000, CRC(92cd441e) SHA1(9a0f9079256cefc6169ae4ba2114841d1f380480), ROM_BIOS(1))
+ ROM_SYSTEM_BIOS(1, "v2", "v2")
+ ROMX_LOAD( "kontur2.rom", 0x10000, 0x2000, CRC(5256d101) SHA1(22022a3c6882dbc5ea28d7815f00c182bbaef9e1), ROM_BIOS(2))
+ ROM_REGION( 0x2000, "gfx1", 0 )
+ ROM_LOAD( "kontur.fnt", 0x0000, 0x2000, CRC(14d33790) SHA1(6d5fcb214805c5fc44ef98a97219158ff7826ac0))
+ROM_END
+
+ROM_START( bk8t )
+ ROM_REGION( 0x16000, "maincpu", ROMREGION_ERASEFF )
+ ROM_LOAD( "kor1.bin", 0x10000, 0x2000, CRC(f1e16ddc) SHA1(e3a10c9ce3f333928eb0d5f9b84e159e41fae6ca))
+ ROM_LOAD( "kor2.bin", 0x12000, 0x2000, CRC(d4431d97) SHA1(08f79785846369d410a4183f0d60b856d6d70199))
+ ROM_LOAD( "kor3.bin", 0x14000, 0x2000, CRC(74781903) SHA1(caaa638afe80eb83fc30b07dd6d1e40b66ddc6d1))
+ ROM_REGION( 0x2000, "gfx1", 0 )
+ ROM_LOAD( "kor4.bin", 0x0000, 0x2000, CRC(d164bada) SHA1(c334e50fd31b1f42c7668b89772487971a6875cb))
+ROM_END
+
+/* Driver */
+
+/* YEAR NAME PARENT COMPAT MACHINE INPUT INIT COMPANY FULLNAME FLAGS */
+COMP( 1987, korvet, 0, 0, pk8020, pk8020, driver_device, 0, "<unknown>", "PK8020 Korvet", 0)
+COMP( 1987, neiva, korvet, 0, pk8020, pk8020, driver_device, 0, "<unknown>", "PK8020 Neiva", 0)
+COMP( 1987, kontur, korvet, 0, pk8020, pk8020, driver_device, 0, "<unknown>", "PK8020 Kontur", 0)
+COMP( 1987, bk8t, korvet, 0, pk8020, pk8020, driver_device, 0, "<unknown>", "BK-8T", 0)