/* Corvus Concept driver Relatively simple 68k-based system * 256 or 512 kbytes of DRAM * 4kbytes of SRAM * 8kbyte boot ROM * optional MacsBugs ROM * two serial ports, keyboard, bitmapped display, simple sound, omninet LAN port (seems more or less similar to AppleTalk) * 4 expansion ports enable to add expansion cards, namely floppy disk and hard disk controllers (the expansion ports are partially compatible with Apple 2 expansion ports) Video: monochrome bitmapped display, 720*560 visible area (bitmaps are 768 pixels wide in memory). One interesting feature is the fact that the monitor can be rotated to give a 560*720 vertical display (you need to throw a switch and reset the machine for the display rotation to be taken into account, though). One oddity is that the video hardware scans the display from the lower-left corner to the upper-left corner (or from the upper-right corner to the lower-left if the screen is flipped). Sound: simpler buzzer connected to the via shift register Keyboard: intelligent controller, connected through an ACIA. See CCOS manual pp. 76 through 78. and User Guide p. 2-1 through 2-9. Clock: mm58174 RTC Raphael Nabet, Brett Wyer, 2003-2005 */ #include "emu.h" #include "cpu/m68000/m68000.h" #include "includes/concept.h" static ADDRESS_MAP_START(concept_memmap, AS_PROGRAM, 16, concept_state ) AM_RANGE(0x000000, 0x000007) AM_ROM AM_REGION("maincpu", 0x010000) /* boot ROM mirror */ AM_RANGE(0x000008, 0x000fff) AM_RAM /* static RAM */ AM_RANGE(0x010000, 0x011fff) AM_ROM AM_REGION("maincpu", 0x010000) /* boot ROM */ AM_RANGE(0x020000, 0x021fff) AM_ROM /* macsbugs ROM (optional) */ AM_RANGE(0x030000, 0x03ffff) AM_READWRITE(concept_io_r,concept_io_w) /* I/O space */ AM_RANGE(0x080000, 0x0fffff) AM_RAM AM_SHARE("videoram")/* AM_RAMBANK(2) */ /* DRAM */ ADDRESS_MAP_END static INPUT_PORTS_START( concept ) PORT_START("KEY0") /* port 0: keys 0x00 through 0x0f */ PORT_BIT(0x0001, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("(right)") PORT_CODE(KEYCODE_RIGHT) PORT_BIT(0x0002, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("3") PORT_CODE(KEYCODE_3_PAD) PORT_BIT(0x0004, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("9") PORT_CODE(KEYCODE_9_PAD) PORT_BIT(0x0008, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("HOME") PORT_CODE(KEYCODE_HOME) PORT_BIT(0x0010, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("6") PORT_CODE(KEYCODE_6_PAD) PORT_BIT(0x0020, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME(",") PORT_CODE(KEYCODE_PLUS_PAD) PORT_BIT(0x0040, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("-") PORT_CODE(KEYCODE_MINUS_PAD) PORT_BIT(0x0080, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("ENTER") PORT_CODE(KEYCODE_ENTER_PAD) PORT_BIT(0x0100, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("(left)") PORT_CODE(KEYCODE_LEFT) PORT_BIT(0x0200, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("1") PORT_CODE(KEYCODE_1_PAD) PORT_BIT(0x0400, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("7") PORT_CODE(KEYCODE_7_PAD) PORT_BIT(0x0800, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("(down)") PORT_CODE(KEYCODE_DOWN) PORT_BIT(0x1000, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("4") PORT_CODE(KEYCODE_4_PAD) PORT_BIT(0x2000, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("8") PORT_CODE(KEYCODE_8_PAD) PORT_BIT(0x4000, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("5") PORT_CODE(KEYCODE_5_PAD) PORT_BIT(0x8000, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("2") PORT_CODE(KEYCODE_2_PAD) PORT_START("KEY1") /* port 1: keys 0x10 through 0x1f */ PORT_BIT(0x0001, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("= +") PORT_CODE(KEYCODE_EQUALS) PORT_BIT(0x0004, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("[ {") PORT_CODE(KEYCODE_OPENBRACE) PORT_BIT(0x0008, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("BACKSPACE") PORT_CODE(KEYCODE_BACKSPACE) PORT_BIT(0x0010, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("ENTER") PORT_CODE(KEYCODE_ENTER) PORT_BIT(0x0020, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("] }") PORT_CODE(KEYCODE_CLOSEBRACE) PORT_BIT(0x0040, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("\\ |") PORT_CODE(KEYCODE_BACKSLASH) PORT_BIT(0x0100, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("0 )") PORT_CODE(KEYCODE_0) PORT_BIT(0x0200, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("/ ?") PORT_CODE(KEYCODE_SLASH) PORT_BIT(0x0400, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("P") PORT_CODE(KEYCODE_P) PORT_BIT(0x0800, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("- _") PORT_CODE(KEYCODE_MINUS) PORT_BIT(0x1000, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("; :") PORT_CODE(KEYCODE_COLON) PORT_BIT(0x2000, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("` ~") PORT_CODE(KEYCODE_BACKSLASH2) PORT_BIT(0x4000, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("' \"") PORT_CODE(KEYCODE_QUOTE) PORT_BIT(0x8000, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("SHIFT (r)") PORT_CODE(KEYCODE_RSHIFT) PORT_START("KEY2") /* port 2: keys 0x20 through 0x2f */ PORT_BIT(0x0001, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("F1") PORT_CODE(KEYCODE_F1) PORT_BIT(0x0002, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("F2") PORT_CODE(KEYCODE_F2) PORT_BIT(0x0004, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("F3") PORT_CODE(KEYCODE_F3) PORT_BIT(0x0008, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("F4") PORT_CODE(KEYCODE_F4) PORT_BIT(0x0010, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("F5") PORT_CODE(KEYCODE_F5) PORT_BIT(0x0100, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("4 $") PORT_CODE(KEYCODE_4) PORT_BIT(0x0200, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("5 %") PORT_CODE(KEYCODE_5) PORT_BIT(0x0400, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("R") PORT_CODE(KEYCODE_R) PORT_BIT(0x0800, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("T") PORT_CODE(KEYCODE_T) PORT_BIT(0x1000, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("F") PORT_CODE(KEYCODE_F) PORT_BIT(0x2000, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("G") PORT_CODE(KEYCODE_G) PORT_BIT(0x4000, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("V") PORT_CODE(KEYCODE_V) PORT_BIT(0x8000, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("B") PORT_CODE(KEYCODE_B) PORT_START("KEY3") /* port 3: keys 0x30 through 0x3f */ PORT_BIT(0x0001, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("2 @") PORT_CODE(KEYCODE_2) PORT_BIT(0x0002, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("3 #") PORT_CODE(KEYCODE_3) PORT_BIT(0x0004, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("W") PORT_CODE(KEYCODE_W) PORT_BIT(0x0008, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("E") PORT_CODE(KEYCODE_E) PORT_BIT(0x0010, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("S") PORT_CODE(KEYCODE_S) PORT_BIT(0x0020, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("D") PORT_CODE(KEYCODE_D) PORT_BIT(0x0040, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("X") PORT_CODE(KEYCODE_X) PORT_BIT(0x0080, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("C") PORT_CODE(KEYCODE_C) PORT_BIT(0x0100, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("ESC") PORT_CODE(KEYCODE_ESC) PORT_BIT(0x0200, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("1 !") PORT_CODE(KEYCODE_1) PORT_BIT(0x0400, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("TAB") PORT_CODE(KEYCODE_TAB) PORT_BIT(0x0800, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("Q") PORT_CODE(KEYCODE_Q) PORT_BIT(0x1000, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("CAPS LOCK") PORT_CODE(KEYCODE_CAPSLOCK) PORT_TOGGLE PORT_BIT(0x2000, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("A") PORT_CODE(KEYCODE_A) PORT_BIT(0x4000, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("SHIFT (l)") PORT_CODE(KEYCODE_LSHIFT) PORT_BIT(0x8000, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("Z") PORT_CODE(KEYCODE_Z) PORT_START("KEY4") /* port 4: keys 0x40 through 0x4f */ PORT_BIT(0x0001, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("6 ^") PORT_CODE(KEYCODE_6) PORT_BIT(0x0002, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("7 &") PORT_CODE(KEYCODE_7) PORT_BIT(0x0004, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("Y") PORT_CODE(KEYCODE_Y) PORT_BIT(0x0008, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("U") PORT_CODE(KEYCODE_U) PORT_BIT(0x0010, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("H") PORT_CODE(KEYCODE_H) PORT_BIT(0x0020, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("J") PORT_CODE(KEYCODE_J) PORT_BIT(0x0040, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("N") PORT_CODE(KEYCODE_N) PORT_BIT(0x0080, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("M") PORT_CODE(KEYCODE_M) PORT_BIT(0x0100, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("CONTROL") PORT_CODE(KEYCODE_LCONTROL) PORT_BIT(0x0200, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("FAST") PORT_CODE(KEYCODE_TILDE) PORT_BIT(0x0400, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("COMMAND") PORT_CODE(KEYCODE_LALT) PORT_BIT(0x0800, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("(space)") PORT_CODE(KEYCODE_SPACE) PORT_BIT(0x1000, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("ALT") PORT_CODE(KEYCODE_RALT) PORT_BIT(0x2000, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("0") PORT_CODE(KEYCODE_0_PAD) PORT_BIT(0x4000, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("00") PORT_CODE(KEYCODE_ASTERISK) PORT_BIT(0x8000, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME(".") PORT_CODE(KEYCODE_DEL_PAD) PORT_START("KEY5") /* port 5: keys 0x50 through 0x5f */ PORT_BIT(0x0001, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("8 *") PORT_CODE(KEYCODE_8) PORT_BIT(0x0002, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("9 (") PORT_CODE(KEYCODE_9) PORT_BIT(0x0004, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("I") PORT_CODE(KEYCODE_I) PORT_BIT(0x0008, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("O") PORT_CODE(KEYCODE_O) PORT_BIT(0x0010, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("K") PORT_CODE(KEYCODE_K) PORT_BIT(0x0020, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("L") PORT_CODE(KEYCODE_L) PORT_BIT(0x0040, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME(", <") PORT_CODE(KEYCODE_COMMA) PORT_BIT(0x0080, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME(". >") PORT_CODE(KEYCODE_STOP) PORT_BIT(0x0100, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("F6") PORT_CODE(KEYCODE_F6) PORT_BIT(0x0200, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("F7") PORT_CODE(KEYCODE_F7) PORT_BIT(0x0400, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("F8") PORT_CODE(KEYCODE_F8) PORT_BIT(0x0800, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("F9") PORT_CODE(KEYCODE_F9) PORT_BIT(0x1000, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("F10") PORT_CODE(KEYCODE_F10) PORT_BIT(0x2000, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("(up)") PORT_CODE(KEYCODE_UP) PORT_BIT(0x4000, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("???") PORT_CODE(KEYCODE_SLASH_PAD) PORT_BIT(0x8000, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("BREAK") PORT_CODE(KEYCODE_PAUSE) PORT_START("DSW0") /* port 6: on-board DIP switches */ PORT_DIPNAME(0x01, 0x00, "Omninet Address bit 0") PORT_DIPSETTING(0x00, DEF_STR( Off )) PORT_DIPSETTING(0x01, DEF_STR( On )) PORT_DIPNAME(0x02, 0x02, "Omninet Address bit 1") PORT_DIPSETTING(0x00, DEF_STR( Off )) PORT_DIPSETTING(0x02, DEF_STR( On )) PORT_DIPNAME(0x04, 0x00, "Omninet Address bit 2") PORT_DIPSETTING(0x00, DEF_STR( Off )) PORT_DIPSETTING(0x04, DEF_STR( On )) PORT_DIPNAME(0x08, 0x00, "Omninet Address bit 3") PORT_DIPSETTING(0x00, DEF_STR( Off )) PORT_DIPSETTING(0x08, DEF_STR( On )) PORT_DIPNAME(0x10, 0x00, "Omninet Address bit 4") PORT_DIPSETTING(0x00, DEF_STR( Off )) PORT_DIPSETTING(0x10, DEF_STR( On )) PORT_DIPNAME(0x20, 0x00, "Omninet Address bit 5") PORT_DIPSETTING(0x00, DEF_STR( Off )) PORT_DIPSETTING(0x20, DEF_STR( On )) PORT_DIPNAME(0xc0, 0x00, "Type of Boot") PORT_DIPSETTING(0x00, "Prompt for type of Boot") // Documentation has 0x00 and 0xc0 reversed per boot PROM PORT_DIPSETTING(0x40, "Boot from Omninet") PORT_DIPSETTING(0x80, "Boot from Local Disk") PORT_DIPSETTING(0xc0, "Boot from Diskette") #if 0 PORT_START("DISPLAY") /* port 7: Display orientation */ PORT_DIPNAME(0x01, 0x00, "Screen Orientation") PORT_DIPSETTING(0x00, "Horizontal") PORT_DIPSETTING(0x01, "Vertical") #endif INPUT_PORTS_END /* init with simple, fixed, B/W palette */ /* Is the palette black on white or white on black??? */ static const mm58274c_interface concept_mm58274c_interface = { 0, /* mode 24*/ 1 /* first day of week */ }; SLOT_INTERFACE_START( concept_exp_devices ) SLOT_INTERFACE("fdc", CONCEPT_FDC) SLOT_INTERFACE("hdc", CONCEPT_HDC) SLOT_INTERFACE_END static MACHINE_CONFIG_START( concept, concept_state ) /* basic machine hardware */ MCFG_CPU_ADD("maincpu", M68000, 8182000) /* 16.364 MHz / 2 */ MCFG_CPU_PROGRAM_MAP(concept_memmap) MCFG_CPU_VBLANK_INT_DRIVER("screen", concept_state, concept_interrupt) MCFG_QUANTUM_TIME(attotime::from_hz(60)) /* video hardware */ MCFG_VIDEO_ATTRIBUTES(VIDEO_UPDATE_BEFORE_VBLANK) MCFG_SCREEN_ADD("screen", RASTER) MCFG_SCREEN_REFRESH_RATE(60) /* 50 or 60, jumper-selectable */ MCFG_SCREEN_VBLANK_TIME(ATTOSECONDS_IN_USEC(2500)) /* not accurate */ MCFG_SCREEN_SIZE(720, 560) MCFG_SCREEN_VISIBLE_AREA(0, 720-1, 0, 560-1) MCFG_SCREEN_UPDATE_DRIVER(concept_state, screen_update_concept) MCFG_PALETTE_ADD_BLACK_AND_WHITE("palette") /* no sound? */ /* rtc */ MCFG_MM58274C_ADD("mm58274c", concept_mm58274c_interface) /* via */ MCFG_DEVICE_ADD("via6522_0", VIA6522, 1022750) MCFG_VIA6522_READPA_HANDLER(READ8(concept_state, via_in_a)) MCFG_VIA6522_READPB_HANDLER(READ8(concept_state, via_in_b)) MCFG_VIA6522_WRITEPA_HANDLER(WRITE8(concept_state, via_out_a)) MCFG_VIA6522_WRITEPB_HANDLER(WRITE8(concept_state, via_out_b)) MCFG_VIA6522_CB2_HANDLER(WRITELINE(concept_state, via_out_cb2)) MCFG_VIA6522_IRQ_HANDLER(WRITELINE(concept_state, via_irq_func)) /* ACIAs */ MCFG_DEVICE_ADD(ACIA_0_TAG, MOS6551, XTAL_1_8432MHz) MCFG_DEVICE_ADD(ACIA_1_TAG, MOS6551, XTAL_1_8432MHz) MCFG_CONCEPT_EXP_PORT_ADD("exp1", concept_exp_devices, NULL) MCFG_CONCEPT_EXP_PORT_ADD("exp2", concept_exp_devices, "fdc") // Flat cable Hard Disk Controller in Slot 2 MCFG_CONCEPT_EXP_PORT_ADD("exp3", concept_exp_devices, "hdc") // Floppy Disk Controller in Slot 3 MCFG_CONCEPT_EXP_PORT_ADD("exp4", concept_exp_devices, NULL) // 2x RS232 ports! MACHINE_CONFIG_END ROM_START( concept ) ROM_REGION16_BE(0x100000,"maincpu",0) /* 68k rom and ram */ // concept boot ROM ROM_SYSTEM_BIOS(0, "lvl8", "Level 8" ) // v0? ROMX_LOAD("bootl08h", 0x010000, 0x1000, CRC(ee479f51) SHA1(b20ba18564672196076e46507020c6d69a640a2f), ROM_BIOS(1) | ROM_SKIP(1)) ROMX_LOAD("bootl08l", 0x010001, 0x1000, CRC(acaefd07) SHA1(de0c7eaacaf4c0652aa45e523cebce2b2993c437), ROM_BIOS(1) | ROM_SKIP(1)) ROM_SYSTEM_BIOS(1, "lvl7", "Level 7" ) // v0? v1? ROMX_LOAD("cc07h", 0x010000, 0x1000, CRC(455abac8) SHA1(b12e1580220242d34eafed1b486cebd89e823c8b), ROM_BIOS(2) | ROM_SKIP(1)) ROMX_LOAD("cc07l", 0x010001, 0x1000, CRC(107a3830) SHA1(0ea12ef13b0d11fcd83b306b3a1bb8014ba910c0), ROM_BIOS(2) | ROM_SKIP(1)) ROM_SYSTEM_BIOS(2, "lvl6", "Level 6" ) // v0? ROMX_LOAD("cc06h", 0x010000, 0x1000, CRC(66b6b259) SHA1(1199a38ef3e94f695e8da6a7c80c6432da3cb80c), ROM_BIOS(3) | ROM_SKIP(1)) ROMX_LOAD("cc06l", 0x010001, 0x1000, CRC(600940d3) SHA1(c3278bf23b3b1c35ea1e3da48a05e877862a8345), ROM_BIOS(3) | ROM_SKIP(1)) ROM_REGION(0x400, "proms", 0) ROM_LOAD("map04a.bin", 0x000, 0x400, CRC(1ae0db9b) SHA1(cdb6f63bb08072b454b4704e62de51c483ede734) ) #if 0 // version 1 lvl 7 release ROM_LOAD16_BYTE("bootl17h", 0x010000, 0x1000, CRC(6dd9718f)) // where does this come from? ROM_LOAD16_BYTE("bootl17l", 0x010001, 0x1000, CRC(107a3830)) #elif 0 // version $F lvl 8 (development version found on a floppy disk along with // the source code) ROM_LOAD16_WORD("cc.prm", 0x010000, 0x2000, CRC(b5a87dab) SHA1(0da59af6cfeeb38672f71731527beac323d9c3d6)) #endif #if 0 // only known MACSbug release for the concept, with reset vector and // entry point (the reset vector seems to be bogus: is the ROM dump bad, // or were the ROMs originally loaded with buggy code?) ROM_LOAD16_BYTE("macsbugh", 0x020000, 0x1000, CRC(aa357112)) ROM_LOAD16_BYTE("macsbugl", 0x020001, 0x1000, CRC(b4b59de9)) #endif ROM_END /* YEAR NAME PARENT COMPAT MACHINE INPUT INIT COMPANY FULLNAME */ COMP( 1982, concept, 0, 0, concept, concept, driver_device, 0, "Corvus Systems", "Concept" , GAME_NO_SOUND)