diff options
Diffstat (limited to 'src/mess/drivers/c65.c')
-rw-r--r-- | src/mess/drivers/c65.c | 391 |
1 files changed, 391 insertions, 0 deletions
diff --git a/src/mess/drivers/c65.c b/src/mess/drivers/c65.c new file mode 100644 index 00000000000..26b10592e95 --- /dev/null +++ b/src/mess/drivers/c65.c @@ -0,0 +1,391 @@ +/*************************************************************************** + + commodore c65 home computer + PeT mess@utanet.at + + documention + www.funet.fi + +***************************************************************************/ + +/* + +2008 - Driver Updates +--------------------- + +(most of the informations are taken from http://www.zimmers.net/cbmpics/ ) + + +[CBM systems which belong to this driver] + +* Commodore 65 (1989) + +Also known as C64 DX at early stages of the project. It was cancelled +around 1990-1991. Only few units survive (they were sold after Commodore +liquidation in 1994). + +CPU: CSG 4510 (3.54 MHz) +RAM: 128 kilobytes, expandable to 8 megabytes +ROM: 128 kilobytes +Video: CSG 4569 "VIC-III" (6 Video modes; Resolutions from 320x200 to + 1280x400; 80 columns text; Palette of 4096 colors) +Sound: CSG 8580 "SID" x2 (6 voice stereo synthesizer/digital sound + capabilities) +Ports: CSG 4510 (2 Joystick/Mouse ports; CBM Serial port; CBM 'USER' + port; CBM Monitor port; Power and reset switches; C65 bus drive + port; RGBI video port; 2 RCA audio ports; RAM expansion port; C65 + expansion port) +Keyboard: Full-sized 77 key QWERTY (12 programmable function keys; + 4 direction cursor-pad) +Additional Hardware: Built in 3.5" DD disk drive (1581 compatible) +Miscellaneous: Partially implemented Commodore 64 emulation + +[Notes] + +The datasette port was removed here. C65 supports an additional "dumb" +drive externally. It also features, in addition to the standard CBM +bus serial (available in all modes), a Fast and a Burst serial bus +(both available in C65 mode only) + +*/ + + +#include "emu.h" +#include "cpu/m6502/m4510.h" +#include "sound/sid6581.h" +#include "machine/6526cia.h" +#include "machine/cbmipt.h" +#include "video/vic4567.h" +#include "includes/cbm.h" +#include "formats/cbm_snqk.h" +#include "includes/c64_legacy.h" +#include "includes/c65.h" +#include "machine/cbmiec.h" +#include "machine/ram.h" + +/************************************* + * + * Main CPU memory handlers + * + *************************************/ + +static ADDRESS_MAP_START( c65_mem , AS_PROGRAM, 8, c65_state ) + AM_RANGE(0x00000, 0x07fff) AM_RAMBANK("bank11") + AM_RANGE(0x08000, 0x09fff) AM_READ_BANK("bank1") AM_WRITE_BANK("bank12") + AM_RANGE(0x0a000, 0x0bfff) AM_READ_BANK("bank2") AM_WRITE_BANK("bank13") + AM_RANGE(0x0c000, 0x0cfff) AM_READ_BANK("bank3") AM_WRITE_BANK("bank14") + AM_RANGE(0x0d000, 0x0d7ff) AM_READ_BANK("bank4") AM_WRITE_BANK("bank5") + AM_RANGE(0x0d800, 0x0dbff) AM_READ_BANK("bank6") AM_WRITE_BANK("bank7") + AM_RANGE(0x0dc00, 0x0dfff) AM_READ_BANK("bank8") AM_WRITE_BANK("bank9") + AM_RANGE(0x0e000, 0x0ffff) AM_READ_BANK("bank10") AM_WRITE_BANK("bank15") + AM_RANGE(0x10000, 0x1f7ff) AM_RAM + AM_RANGE(0x1f800, 0x1ffff) AM_RAM AM_SHARE("colorram") + + AM_RANGE(0x20000, 0x23fff) AM_ROM /* &c65_dos, maps to 0x8000 */ + AM_RANGE(0x24000, 0x28fff) AM_ROM /* reserved */ + AM_RANGE(0x29000, 0x29fff) AM_ROM AM_SHARE("chargen") + AM_RANGE(0x2a000, 0x2bfff) AM_ROM AM_SHARE("basic") + AM_RANGE(0x2c000, 0x2cfff) AM_ROM AM_SHARE("interface") + AM_RANGE(0x2d000, 0x2dfff) AM_ROM AM_SHARE("chargen") + AM_RANGE(0x2e000, 0x2ffff) AM_ROM AM_SHARE("kernal") + + AM_RANGE(0x30000, 0x31fff) AM_ROM /*&c65_monitor, monitor maps to 0x6000 */ + AM_RANGE(0x32000, 0x37fff) AM_ROM /*&c65_basic, */ + AM_RANGE(0x38000, 0x3bfff) AM_ROM /*&c65_graphics, */ + AM_RANGE(0x3c000, 0x3dfff) AM_ROM /* reserved */ + AM_RANGE(0x3e000, 0x3ffff) AM_ROM /* &c65_kernal, */ + + AM_RANGE(0x40000, 0x7ffff) AM_NOP + /* 8 megabyte full address space! */ +ADDRESS_MAP_END + + +/************************************* + * + * Input Ports + * + *************************************/ + +static INPUT_PORTS_START( c65 ) + PORT_INCLUDE( common_cbm_keyboard ) /* ROW0 -> ROW7 */ + + PORT_START("FUNCT") + PORT_BIT( 0x80, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("ESC") PORT_CODE(KEYCODE_F1) + PORT_BIT( 0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("F13 F14") PORT_CODE(KEYCODE_F11) + PORT_BIT( 0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("F11 F12") PORT_CODE(KEYCODE_F10) + PORT_BIT( 0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("F9 F10") PORT_CODE(KEYCODE_F9) + PORT_BIT( 0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("HELP") PORT_CODE(KEYCODE_F12) + PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("ALT") PORT_CODE(KEYCODE_F2) /* non blocking */ + PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("TAB") PORT_CODE(KEYCODE_TAB) + PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("NO SCRL") PORT_CODE(KEYCODE_F4) + + PORT_INCLUDE( c65_special ) /* SPECIAL */ + + PORT_INCLUDE( c64_controls ) /* CTRLSEL, JOY0, JOY1, PADDLE0 -> PADDLE3, TRACKX, TRACKY, LIGHTX, LIGHTY, OTHER */ +INPUT_PORTS_END + + +static INPUT_PORTS_START( c65ger ) + PORT_INCLUDE( c65 ) + + PORT_MODIFY( "ROW1" ) + PORT_BIT( 0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("Z { Y }") PORT_CODE(KEYCODE_Z) PORT_CHAR('Z') + PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("3 # { 3 Paragraph }") PORT_CODE(KEYCODE_3) PORT_CHAR('3') PORT_CHAR('#') + + PORT_MODIFY( "ROW3" ) + PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("Y { Z }") PORT_CODE(KEYCODE_Y) PORT_CHAR('Y') + PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("7 ' { 7 / }") PORT_CODE(KEYCODE_7) PORT_CHAR('7') PORT_CHAR('\'') + + PORT_MODIFY( "ROW4" ) + PORT_BIT( 0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("0 { = }") PORT_CODE(KEYCODE_0) PORT_CHAR('0') + + PORT_MODIFY( "ROW5" ) + PORT_BIT( 0x80, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME(", < { ; }") PORT_CODE(KEYCODE_COMMA) PORT_CHAR(',') PORT_CHAR('<') + PORT_BIT( 0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("Paragraph \xE2\x86\x91 { \xc3\xbc }") PORT_CODE(KEYCODE_OPENBRACE) PORT_CHAR(0x00A7) PORT_CHAR(0x2191) + PORT_BIT( 0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME(": [ { \xc3\xa4 }") PORT_CODE(KEYCODE_COLON) PORT_CHAR(':') PORT_CHAR('[') + PORT_BIT( 0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME(". > { : }") PORT_CODE(KEYCODE_STOP) PORT_CHAR('.') PORT_CHAR('>') + PORT_BIT( 0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("- { ' ` }") PORT_CODE(KEYCODE_EQUALS) PORT_CHAR('-') + PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("+ { \xc3\x9f ? }") PORT_CODE(KEYCODE_MINUS) PORT_CHAR('+') + + PORT_MODIFY( "ROW6" ) + PORT_BIT( 0x80, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("/ ? { - _ }") PORT_CODE(KEYCODE_SLASH) PORT_CHAR('/') PORT_CHAR('?') + PORT_BIT( 0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("Sum Pi { ] \\ }") PORT_CODE(KEYCODE_DEL) PORT_CHAR(0x03A3) PORT_CHAR(0x03C0) + PORT_BIT( 0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("= { # ' }") PORT_CODE(KEYCODE_BACKSLASH) PORT_CHAR('=') + PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("; ] { \xc3\xb6 }") PORT_CODE(KEYCODE_QUOTE) PORT_CHAR(';') PORT_CHAR(']') + PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("* ` { + * }") PORT_CODE(KEYCODE_CLOSEBRACE) PORT_CHAR('*') PORT_CHAR('`') + PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("\\ { [ \xE2\x86\x91 }") PORT_CODE(KEYCODE_BACKSLASH2) PORT_CHAR('\xa3') + + PORT_MODIFY( "ROW7" ) + PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("_ { < > }") PORT_CODE(KEYCODE_TILDE) PORT_CHAR('_') + + PORT_MODIFY("SPECIAL") /* special keys */ + PORT_DIPNAME( 0x20, 0x00, "(C65) DIN ASC (switch)") PORT_CODE(KEYCODE_F3) + PORT_DIPSETTING( 0x00, "ASC" ) + PORT_DIPSETTING( 0x20, "DIN" ) +INPUT_PORTS_END + + + +/************************************* + * + * Graphics definitions + * + *************************************/ + +static PALETTE_INIT( c65 ) +{ + int i; + + for ( i = 0; i < 0x100; i++ ) + { + palette_set_color_rgb(machine, i, 0, 0, 0); + } +} + + +/************************************* + * + * Sound definitions + * + *************************************/ + +static const sid6581_interface c65_sound_interface = +{ + c64_paddle_read +}; + + +static CBM_IEC_INTERFACE( cbm_iec_intf ) +{ + DEVCB_NULL, + DEVCB_NULL, + DEVCB_NULL, + DEVCB_NULL, + DEVCB_NULL +}; + + +/************************************* + * + * VIC III interfaces + * + *************************************/ + +static SCREEN_UPDATE_IND16( c65 ) +{ + device_t *vic3 = screen.machine().device("vic3"); + + vic3_video_update(vic3, bitmap, cliprect); + return 0; +} + +static UINT8 c65_lightpen_x_cb( running_machine &machine ) +{ + return machine.root_device().ioport("LIGHTX")->read() & ~0x01; +} + +static UINT8 c65_lightpen_y_cb( running_machine &machine ) +{ + return machine.root_device().ioport("LIGHTY")->read() & ~0x01; +} + +static UINT8 c65_lightpen_button_cb( running_machine &machine ) +{ + return machine.root_device().ioport("OTHER")->read() & 0x04; +} + +static UINT8 c65_c64_mem_r( running_machine &machine, int offset ) +{ + c65_state *state = machine.driver_data<c65_state>(); + return state->m_memory[offset]; +} + +static const vic3_interface c65_vic3_ntsc_intf = { + "screen", + "maincpu", + VIC4567_NTSC, + c65_lightpen_x_cb, + c65_lightpen_y_cb, + c65_lightpen_button_cb, + c65_dma_read, + c65_dma_read_color, + c65_vic_interrupt, + c65_bankswitch_interface, + c65_c64_mem_r +}; + +static const vic3_interface c65_vic3_pal_intf = { + "screen", + "maincpu", + VIC4567_PAL, + c65_lightpen_x_cb, + c65_lightpen_y_cb, + c65_lightpen_button_cb, + c65_dma_read, + c65_dma_read_color, + c65_vic_interrupt, + c65_bankswitch_interface, + c65_c64_mem_r +}; + +static INTERRUPT_GEN( vic3_raster_irq ) +{ + device_t *vic3 = device->machine().device("vic3"); + + vic3_raster_interrupt_gen(vic3); +} + +/************************************* + * + * Machine driver + * + *************************************/ + +static MACHINE_CONFIG_START( c65, c65_state ) + /* basic machine hardware */ + MCFG_CPU_ADD("maincpu", M4510, 3500000) /* or VIC6567_CLOCK, */ + MCFG_CPU_PROGRAM_MAP(c65_mem) + MCFG_CPU_VBLANK_INT("screen", c65_frame_interrupt) + MCFG_CPU_PERIODIC_INT(vic3_raster_irq, VIC6567_HRETRACERATE) + + MCFG_MACHINE_START( c65 ) + + /* video hardware */ + MCFG_SCREEN_ADD("screen", RASTER) + MCFG_SCREEN_REFRESH_RATE(VIC6567_VRETRACERATE) + MCFG_SCREEN_VBLANK_TIME(ATTOSECONDS_IN_USEC(2500)) /* not accurate */ + MCFG_SCREEN_SIZE(525 * 2, 520 * 2) + MCFG_SCREEN_VISIBLE_AREA(VIC6567_STARTVISIBLECOLUMNS ,(VIC6567_STARTVISIBLECOLUMNS + VIC6567_VISIBLECOLUMNS - 1) * 2, VIC6567_STARTVISIBLELINES, VIC6567_STARTVISIBLELINES + VIC6567_VISIBLELINES - 1) + MCFG_SCREEN_UPDATE_STATIC( c65 ) + + MCFG_PALETTE_LENGTH(0x100) + MCFG_PALETTE_INIT( c65 ) + + MCFG_VIC3_ADD("vic3", c65_vic3_ntsc_intf) + + /* sound hardware */ + MCFG_SPEAKER_STANDARD_STEREO("lspeaker", "rspeaker") + MCFG_SOUND_ADD("sid_r", SID8580, 985248) + MCFG_SOUND_CONFIG(c65_sound_interface) + MCFG_SOUND_ROUTE(ALL_OUTPUTS, "rspeaker", 0.50) + MCFG_SOUND_ADD("sid_l", SID8580, 985248) + MCFG_SOUND_ROUTE(ALL_OUTPUTS, "lspeaker", 0.50) + + /* quickload */ + MCFG_QUICKLOAD_ADD("quickload", cbm_c65, "p00,prg", CBM_QUICKLOAD_DELAY_SECONDS) + + /* cia */ + MCFG_MOS6526R1_ADD("cia_0", 3500000, c65_ntsc_cia0) + MCFG_MOS6526R1_ADD("cia_1", 3500000, c65_ntsc_cia1) + + /* floppy from serial bus */ + MCFG_CBM_IEC_ADD(cbm_iec_intf, NULL) + + MCFG_FRAGMENT_ADD(c64_cartslot) + + /* internal ram */ + MCFG_RAM_ADD(RAM_TAG) + MCFG_RAM_DEFAULT_SIZE("128K") + MCFG_RAM_EXTRA_OPTIONS("640K,4224K") +MACHINE_CONFIG_END + +static MACHINE_CONFIG_DERIVED( c65pal, c65 ) + MCFG_SCREEN_MODIFY("screen") + MCFG_SCREEN_REFRESH_RATE(VIC6569_VRETRACERATE) + MCFG_SCREEN_SIZE(625 * 2, 520 * 2) + MCFG_SCREEN_VISIBLE_AREA(VIC6569_STARTVISIBLECOLUMNS, (VIC6569_STARTVISIBLECOLUMNS + VIC6569_VISIBLECOLUMNS - 1) * 2, VIC6569_STARTVISIBLELINES, VIC6569_STARTVISIBLELINES + VIC6569_VISIBLELINES - 1) + + MCFG_DEVICE_REMOVE("vic3") + MCFG_VIC3_ADD("vic3", c65_vic3_pal_intf) + + /* sound hardware */ + MCFG_SOUND_REPLACE("sid_r", SID8580, 1022727) + MCFG_SOUND_CONFIG(c65_sound_interface) + MCFG_SOUND_ROUTE(ALL_OUTPUTS, "rspeaker", 0.50) + MCFG_SOUND_REPLACE("sid_l", SID8580, 1022727) + MCFG_SOUND_ROUTE(ALL_OUTPUTS, "lspeaker", 0.50) + + /* cia */ + MCFG_DEVICE_REMOVE("cia_0") + MCFG_DEVICE_REMOVE("cia_1") + MCFG_MOS6526R1_ADD("cia_0", 3500000, c65_pal_cia0) + MCFG_MOS6526R1_ADD("cia_1", 3500000, c65_pal_cia1) +MACHINE_CONFIG_END + + +/************************************* + * + * ROM definition(s) + * + *************************************/ + + +ROM_START( c65 ) + ROM_REGION( 0x400000, "maincpu", 0 ) + ROM_SYSTEM_BIOS( 0, "910111", "V0.9.910111" ) + ROMX_LOAD( "910111.bin", 0x20000, 0x20000, CRC(c5d8d32e) SHA1(71c05f098eff29d306b0170e2c1cdeadb1a5f206), ROM_BIOS(1) ) + ROM_SYSTEM_BIOS( 1, "910523", "V0.9.910523" ) + ROMX_LOAD( "910523.bin", 0x20000, 0x20000, CRC(e8235dd4) SHA1(e453a8e7e5b95de65a70952e9d48012191e1b3e7), ROM_BIOS(2) ) + ROM_SYSTEM_BIOS( 2, "910626", "V0.9.910626" ) + ROMX_LOAD( "910626.bin", 0x20000, 0x20000, CRC(12527742) SHA1(07c185b3bc58410183422f7ac13a37ddd330881b), ROM_BIOS(3) ) + ROM_SYSTEM_BIOS( 3, "910828", "V0.9.910828" ) + ROMX_LOAD( "910828.bin", 0x20000, 0x20000, CRC(3ee40b06) SHA1(b63d970727a2b8da72a0a8e234f3c30a20cbcb26), ROM_BIOS(4) ) + ROM_SYSTEM_BIOS( 4, "911001", "V0.9.911001" ) + ROMX_LOAD( "911001.bin", 0x20000, 0x20000, CRC(0888b50f) SHA1(129b9a2611edaebaa028ac3e3f444927c8b1fc5d), ROM_BIOS(5) ) +ROM_END + +ROM_START( c64dx ) + ROM_REGION( 0x400000, "maincpu", 0 ) + ROM_LOAD( "910429.bin", 0x20000, 0x20000, CRC(b025805c) SHA1(c3b05665684f74adbe33052a2d10170a1063ee7d) ) +ROM_END + +/*************************************************************************** + + Game driver(s) + +***************************************************************************/ + +/* YEAR NAME PARENT COMPAT MACHINE INPUT INIT COMPANY FULLNAME FLAGS */ + +COMP( 1991, c65, 0, 0, c65, c65, c65_state, c65, "Commodore Business Machines", "Commodore 65 Development System (Prototype, NTSC)", GAME_NOT_WORKING ) +COMP( 1991, c64dx, c65, 0, c65pal, c65ger, c65_state, c65pal, "Commodore Business Machines", "Commodore 64DX Development System (Prototype, PAL, German)", GAME_NOT_WORKING ) |