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Diffstat (limited to 'src/mame/drivers/cardinal.cpp')
| -rw-r--r-- | src/mame/drivers/cardinal.cpp | 120 |
1 files changed, 120 insertions, 0 deletions
diff --git a/src/mame/drivers/cardinal.cpp b/src/mame/drivers/cardinal.cpp new file mode 100644 index 00000000000..756a550d388 --- /dev/null +++ b/src/mame/drivers/cardinal.cpp @@ -0,0 +1,120 @@ +// license:BSD-3-Clause +// copyright-holders:AJR +/*************************************************************************** + + Skeleton driver for Standard Microsystems Cardinal. + + This is a generic video display terminal controller on a Eurocard-sized + PCB. It provides space for two RS-232-C connectors and pin headers for + a serial keyboard and monitor. + + All video timing and display signal generation, including the character + set, is integrated within Standard Microsystems' CRT9028 Video Terminal + Logic Controller. + +***************************************************************************/ + +#include "emu.h" +#include "cpu/mcs51/mcs51.h" +//#include "bus/rs232/rs232.h" +#include "machine/eepromser.h" +//#include "video/crt9028.h" +#include "screen.h" + +class cardinal_state : public driver_device +{ +public: + cardinal_state(const machine_config &mconfig, device_type type, const char *tag) + : driver_device(mconfig, type, tag) + , m_eeprom(*this, "eeprom") + { + } + + void cardinal(machine_config &config); + +private: + u32 screen_update(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect); + + u8 p1_r(); + void p1_w(u8 data); + + void prog_map(address_map &map); + void ext_map(address_map &map); + + required_device<eeprom_serial_93cxx_device> m_eeprom; + //required_device<crt9028_device> m_vtlc; +}; + + +u32 cardinal_state::screen_update(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect) +{ + return 0; +} + +u8 cardinal_state::p1_r() +{ + return 0xdf | (m_eeprom->do_read() << 5); +} + +void cardinal_state::p1_w(u8 data) +{ + // FIXME: this doesn't quite work + m_eeprom->cs_write(BIT(data, 0)); + m_eeprom->di_write(BIT(data, 4)); + m_eeprom->clk_write(BIT(data, 3)); +} + +void cardinal_state::prog_map(address_map &map) +{ + map(0x0000, 0x0fff).rom().region("program", 0); +} + +void cardinal_state::ext_map(address_map &map) +{ + map(0xff00, 0xff00).nopr(); +} + + +static INPUT_PORTS_START(cardinal) +INPUT_PORTS_END + + +void cardinal_state::cardinal(machine_config &config) +{ + i8031_device &maincpu(I8031(config, "maincpu", 7.3728_MHz_XTAL)); + maincpu.set_addrmap(AS_PROGRAM, &cardinal_state::prog_map); + maincpu.set_addrmap(AS_IO, &cardinal_state::ext_map); + maincpu.port_in_cb<1>().set(FUNC(cardinal_state::p1_r)); + maincpu.port_out_cb<1>().set(FUNC(cardinal_state::p1_w)); + + EEPROM_93C06_16BIT(config, m_eeprom); + + //CRT9028_000(config, m_vtlc, 10.92_MHz_XTAL); + //m_vtlc->set_screen("screen"); + + screen_device &screen(SCREEN(config, "screen", SCREEN_TYPE_RASTER)); + screen.set_raw(10.92_MHz_XTAL, 700, 0, 560, 260, 0, 240); + screen.set_screen_update(FUNC(cardinal_state::screen_update)); +} + + +// STANDARD MICROSYSTEMS CORP. CARDINAL © 1984 +// ASSY NO.710.015 REV +// Complete IC list: +// * TI SN74LS240N (A1) +// * NS NMC9306N (A2) +// * Intel P8031AH (A3) +// * SMC CRT9028-000 (A4) +// * Hitachi HM6116LP-4 (A5) +// * TI SN74LS373N (A6) +// * TI MC1489A/75189AN (A7) +// * 2732 EPROM in 28-pin socket (A8) +// * TI MC1488/75188N (A9) +// Oscillators: 7.3728 (Y1), 10.920MHz (Y2) +ROM_START(cardinal) + ROM_REGION(0x1000, "program", 0) + ROM_LOAD("smc_8031_crt9028.bin", 0x0000, 0x1000, CRC(486705d0) SHA1(39f3fd80a72756b3267d771202cf917060eb04e1)) +ROM_END + + +COMP(1984, cardinal, 0, 0, cardinal, cardinal, cardinal_state, empty_init, "Standard Microsystems", "Cardinal Video Terminal", MACHINE_IS_SKELETON) |