/****************************************************************************** Synertek Systems Corp. SYM-1 Early driver by PeT mess@utanet.at May 2000 Rewritten by Dirk Best October 2007 ******************************************************************************/ #include "emu.h" #include "cpu/m6502/m6502.h" #include "sound/speaker.h" #include "includes/sym1.h" /* Peripheral chips */ #include "machine/6532riot.h" #include "machine/6522via.h" #include "machine/74145.h" /* Layout */ #include "sym1.lh" #include "machine/ram.h" /* pointers to memory locations */ /****************************************************************************** Memory Maps ******************************************************************************/ static ADDRESS_MAP_START( sym1_map, AS_PROGRAM, 8, sym1_state ) AM_RANGE(0x0000, 0x03ff) AM_RAM /* U12/U13 RAM */ AM_RANGE(0x0400, 0x07ff) AM_RAMBANK("bank2") AM_SHARE("ram_1k") AM_RANGE(0x0800, 0x0bff) AM_RAMBANK("bank3") AM_SHARE("ram_2k") AM_RANGE(0x0c00, 0x0fff) AM_RAMBANK("bank4") AM_SHARE("ram_3k") AM_RANGE(0x8000, 0x8fff) AM_ROM AM_SHARE("monitor") /* U20 Monitor ROM */ AM_RANGE(0xa000, 0xa00f) AM_DEVREADWRITE("via6522_0", via6522_device, read, write) /* U25 VIA #1 */ AM_RANGE(0xa400, 0xa40f) AM_DEVREADWRITE_LEGACY("riot", riot6532_r, riot6532_w) /* U27 RIOT */ AM_RANGE(0xa600, 0xa67f) AM_RAMBANK("bank5") AM_SHARE("riot_ram") /* U27 RIOT RAM */ AM_RANGE(0xa800, 0xa80f) AM_DEVREADWRITE("via6522_1", via6522_device, read, write) /* U28 VIA #2 */ AM_RANGE(0xac00, 0xac0f) AM_DEVREADWRITE("via6522_2", via6522_device, read, write) /* U29 VIA #3 */ AM_RANGE(0xb000, 0xefff) AM_ROM ADDRESS_MAP_END /****************************************************************************** Input Ports ******************************************************************************/ static INPUT_PORTS_START( sym1 ) PORT_START("ROW-0") PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("0 USR 0") PORT_CODE(KEYCODE_0) PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("4 USR 4") PORT_CODE(KEYCODE_4) PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("8 JUMP") PORT_CODE(KEYCODE_8) PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("C CALC") PORT_CODE(KEYCODE_C) PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("CR S DBL") PORT_CODE(KEYCODE_ENTER) PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("GO LD P") PORT_CODE(KEYCODE_F3) PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("LD 2 LD 1") PORT_CODE(KEYCODE_F1) PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_UNUSED) PORT_START("ROW-1") PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("1 USR 1") PORT_CODE(KEYCODE_1) PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("5 USR 5") PORT_CODE(KEYCODE_5) PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("9 VER") PORT_CODE(KEYCODE_9) PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("D DEP") PORT_CODE(KEYCODE_D) PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("- +") PORT_CODE(KEYCODE_MINUS) PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("REG SAV P") PORT_CODE(KEYCODE_F4) PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("SAV 2 SAV 1") PORT_CODE(KEYCODE_F2) PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_UNUSED ) PORT_START("ROW-2") PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("2 USR 2") PORT_CODE(KEYCODE_2) PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("6 USR 6") PORT_CODE(KEYCODE_6) PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("A ASCII") PORT_CODE(KEYCODE_A) PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("E EXEC") PORT_CODE(KEYCODE_E) PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("\xE2\x86\x92 \xE2\x86\x90") PORT_CODE(KEYCODE_RIGHT) PORT_CODE(KEYCODE_LEFT) PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("MEM WP") PORT_CODE(KEYCODE_F5) PORT_BIT(0xc0, IP_ACTIVE_LOW, IPT_UNUSED ) PORT_START("ROW-3") PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("3 USR 3") PORT_CODE(KEYCODE_3) PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("7 USR 7") PORT_CODE(KEYCODE_7) PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("B B MOV") PORT_CODE(KEYCODE_B) PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("F FILL") PORT_CODE(KEYCODE_F) PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("SHIFT") PORT_CODE(KEYCODE_LSHIFT) PORT_CODE(KEYCODE_RSHIFT) PORT_BIT(0xe0, IP_ACTIVE_LOW, IPT_UNUSED ) PORT_START("IN4") /* IN4 */ PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("DEBUG OFF") PORT_CODE(KEYCODE_F6) PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("DEBUG ON") PORT_CODE(KEYCODE_F7) PORT_START("WP") PORT_DIPNAME(0x01, 0x01, "6532 RAM WP") PORT_DIPSETTING(0x00, DEF_STR(Off)) PORT_DIPSETTING(0x01, DEF_STR(On)) PORT_DIPNAME(0x02, 0x02, "1K RAM WP") PORT_DIPSETTING(0x00, DEF_STR(Off)) PORT_DIPSETTING(0x02, DEF_STR(On)) PORT_DIPNAME(0x04, 0x04, "2K RAM WP") PORT_DIPSETTING(0x00, DEF_STR(Off)) PORT_DIPSETTING(0x04, DEF_STR(On)) PORT_DIPNAME(0x08, 0x08, "3K RAM WP") PORT_DIPSETTING(0x00, DEF_STR(Off)) PORT_DIPSETTING(0x08, DEF_STR(On)) INPUT_PORTS_END /****************************************************************************** Machine Drivers ******************************************************************************/ static MACHINE_CONFIG_START( sym1, sym1_state ) /* basic machine hardware */ MCFG_CPU_ADD("maincpu", M6502, SYM1_CLOCK) /* 1 MHz */ MCFG_CPU_PROGRAM_MAP(sym1_map) MCFG_DEFAULT_LAYOUT(layout_sym1) /* sound hardware */ MCFG_SPEAKER_STANDARD_MONO("mono") MCFG_SOUND_ADD("speaker", SPEAKER_SOUND, 0) MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 1.0) /* devices */ MCFG_RIOT6532_ADD("riot", SYM1_CLOCK, sym1_r6532_interface) MCFG_TTL74145_ADD("ttl74145", sym1_ttl74145_intf) MCFG_VIA6522_ADD("via6522_0", 0, sym1_via0) MCFG_VIA6522_ADD("via6522_1", 0, sym1_via1) MCFG_VIA6522_ADD("via6522_2", 0, sym1_via2) /* internal ram */ MCFG_RAM_ADD(RAM_TAG) MCFG_RAM_DEFAULT_SIZE("4K") MCFG_RAM_EXTRA_OPTIONS("1K,2K,3K") MACHINE_CONFIG_END /****************************************************************************** ROM Definitions ******************************************************************************/ ROM_START( sym1 ) ROM_REGION(0x10000, "maincpu", 0) ROM_SYSTEM_BIOS(0, "ver10", "Version 1.0") ROMX_LOAD("symon1_0.bin", 0x8000, 0x1000, CRC(97928583) SHA1(6ac52c54adb7a086d51bc7f6d55dd30ab3a0a331),ROM_BIOS(1)) ROM_SYSTEM_BIOS(1, "ver11", "Version 1.1") ROMX_LOAD("symon1_1.bin", 0x8000, 0x1000, CRC(7a4b1e12) SHA1(cebdf815105592658cfb7af262f2101d2aeab786),ROM_BIOS(2)) ROM_LOAD("rae_b000", 0xb000, 0x1000, CRC(F6429326) SHA1(6f2f10649b54f54217bb35c8c453b5d05434bd86) ) ROM_LOAD("bas_c000", 0xc000, 0x1000, CRC(C168FE70) SHA1(7447a5e229140cbbde4cf90886966a5d93aa24e1) ) ROM_LOAD("bas_d000", 0xd000, 0x1000, CRC(8375A978) SHA1(240301bf8bb8ddb99b65a585f17895e1ad872631) ) ROM_LOAD("rae_e000", 0xe000, 0x1000, CRC(2255444B) SHA1(c7dd812962c2e2edd2faa7055e9cce4e769c0388) ) ROM_END /****************************************************************************** Drivers ******************************************************************************/ /* YEAR NAME PARENT COMPAT MACHINE INPUT INIT COMPANY FULLNAME FLAGS */ COMP( 1978, sym1, 0, 0, sym1, sym1, sym1_state, sym1, "Synertek Systems Corp.", "SYM-1/SY-VIM-1", 0 )