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Diffstat (limited to 'src/mame/tektronix/tekxp33x.cpp')
-rw-r--r-- | src/mame/tektronix/tekxp33x.cpp | 137 |
1 files changed, 137 insertions, 0 deletions
diff --git a/src/mame/tektronix/tekxp33x.cpp b/src/mame/tektronix/tekxp33x.cpp new file mode 100644 index 00000000000..1ebb4afdd79 --- /dev/null +++ b/src/mame/tektronix/tekxp33x.cpp @@ -0,0 +1,137 @@ +// license:BSD-3-Clause +// copyright-holders:Justin Kerk +/*************************************************************************** + + Tektronix TekXpress XP33x series X terminals + + Skeleton driver. + +****************************************************************************/ + +/* + + TODO: + + - everything + + Technical info: + https://www.linux-mips.org/wiki/Tektronix_TekXPress_XP338 + https://web.archive.org/web/20061013084616/http://tekxp-linux.hopto.org/pmwiki/pmwiki.php/Hardware/XP33x + http://bio.gsi.de/DOCS/NCD/xp.html + + CPU: IDT 79R3052E (MIPS I R3000 embedded core. Big Endian. With MMU, without FPU.) + Graphic Chipset: Texas Instruments (34020AGBL-40) TI 34010 (TIGA) + Graphic RAMDAC: Brooktree BT458LPJ135 (Supported in XFree86) + RAM: 4MB onboard, upgradeable to 52MB, 3 slots for 5V FPM NoParity SIMMs + ROM: 256Kb, 2 x 27c1024 (64Kx16), with BootMonitor + Peripherals: + 1x Ethernet Port (AUI and UTP) -- AMD AM79C98 Chipset + 2x Serial Ports -- Philips SCC2692 Dual UART chipset + Keyboard and Mouse controller is a generic PC-Style i8742 with Phoenix BIOS. + 1x "ERGO" Port (Combined Monitor, Keyboard, Mouse) + 16K (2K*8) EEPROM is SEEQ NQ2816A-250, AT28C16 compatible. Contains Boot Monitor settings. The content is compressed. + Micron MT56C0816 - ??? Flash + +*/ + + +#include "emu.h" +#include "cpu/mips/mips1.h" +#include "cpu/tms34010/tms34010.h" +#include "emupal.h" +#include "screen.h" + + +namespace { + +#define SCREEN_TAG "screen" + +class tekxp330_state : public driver_device +{ +public: + tekxp330_state(const machine_config &mconfig, device_type type, const char *tag) + : driver_device(mconfig, type, tag) { } + + void tekxp330(machine_config &config); + +private: + virtual void machine_start() override ATTR_COLD; + + virtual void video_start() override ATTR_COLD; + uint32_t screen_update(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect); + void cpu_map(address_map &map) ATTR_COLD; + void tms_map(address_map &map) ATTR_COLD; +}; + +/* Memory Maps */ + +void tekxp330_state::cpu_map(address_map &map) +{ + map(0x00000000, 0x003fffff).ram(); + map(0x1fc00000, 0x1fdfffff).rom().region("maincpu", 0); +} + +void tekxp330_state::tms_map(address_map &map) +{ +} + +/* Input Ports */ + +static INPUT_PORTS_START( tekxp330 ) +INPUT_PORTS_END + +/* Video */ + +void tekxp330_state::video_start() +{ +} + +uint32_t tekxp330_state::screen_update(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect) +{ + return 0; +} + +/* Machine Initialization */ + +void tekxp330_state::machine_start() +{ +} + +/* Machine Driver */ + +void tekxp330_state::tekxp330(machine_config &config) +{ + /* basic machine hardware */ + r3052e_device &maincpu(R3052E(config, "maincpu", XTAL(20'000'000))); /* IDT 79R3052E, clock unknown */ + maincpu.set_endianness(ENDIANNESS_BIG); + maincpu.set_addrmap(AS_PROGRAM, &tekxp330_state::cpu_map); + + tms34010_device &tms(TMS34010(config, "tms", XTAL(40'000'000))); /* clock unknown */ + tms.set_addrmap(AS_PROGRAM, &tekxp330_state::tms_map); + + /* video hardware */ + screen_device &screen(SCREEN(config, SCREEN_TAG, SCREEN_TYPE_RASTER)); + screen.set_refresh_hz(60); + screen.set_vblank_time(ATTOSECONDS_IN_USEC(2500)); /* not accurate */ + screen.set_screen_update(FUNC(tekxp330_state::screen_update)); + screen.set_size(640, 480); + screen.set_visarea(0, 640-1, 0, 480-1); + + PALETTE(config, "palette").set_entries(64); +} + +/* ROMs */ + +ROM_START( tekxp330 ) + ROM_REGION( 0x200000, "maincpu", 0 ) + /* TekXpress XP300 Boot ROM V1.0 Thu Feb 6 14:50:16 PST 1992 */ + ROM_LOAD32_DWORD( "xp300.bin", 0x000000, 0x200000, CRC(9a324588) SHA1(a6e10275f8215f446be91128bab4c643693da653) ) +ROM_END + +} // anonymous namespace + + +/* System Drivers */ + +// YEAR NAME PARENT COMPAT MACHINE INPUT CLASS INIT COMPANY FULLNAME FLAGS +COMP( 1992, tekxp330, 0, 0, tekxp330, tekxp330, tekxp330_state, empty_init, "Tektronix", "TekXpress XP330", MACHINE_NO_SOUND | MACHINE_NOT_WORKING ) |