// license:BSD-3-Clause // copyright-holders:R. Belmont /**************************************************************************** drivers/ncdmips.cpp NCD MIPS-based color X terminals Hardware: - R4600 CPU - 2681 DUART (Logitech serial mouse) - AM79C950 Ethernet - AT&T ATT21C505 "PrecisionDAC" for audio out - PS/2 keyboard port ****************************************************************************/ #include "emu.h" #include "bus/rs232/rs232.h" #include "cpu/mips/mips3.h" #include "machine/mc68681.h" #include "screen.h" class ncd_mips_state : public driver_device { public: ncd_mips_state(const machine_config &mconfig, device_type type, const char *tag) : driver_device(mconfig, type, tag), m_maincpu(*this, "maincpu"), m_screen(*this, "screen"), m_mainram(*this, "mainram"), m_duart(*this, "duart") { } void hmxpro(machine_config &config); void hmxpro_map(address_map &map); uint32_t screen_update(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect); DECLARE_WRITE_LINE_MEMBER(duart_irq_handler); INTERRUPT_GEN_MEMBER(vblank); private: virtual void machine_reset() override; required_device m_maincpu; required_device m_screen; optional_shared_ptr m_mainram; required_device m_duart; DECLARE_READ32_MEMBER(unk_r); DECLARE_WRITE32_MEMBER(tty_w); inline void ATTR_PRINTF(3,4) verboselog( int n_level, const char *s_fmt, ... ); // u32 m_palette[256]; // u8 m_r, m_g, m_b, m_entry, m_stage; }; #define VERBOSE_LEVEL ( 0 ) #define ENABLE_VERBOSE_LOG (0) inline void ATTR_PRINTF(3,4) ncd_mips_state::verboselog( int n_level, const char *s_fmt, ... ) { #if ENABLE_VERBOSE_LOG if( VERBOSE_LEVEL >= n_level ) { va_list v; char buf[ 32768 ]; va_start( v, s_fmt ); vsprintf( buf, s_fmt, v ); va_end( v ); logerror("%s: %s", machine().describe_context(), buf); } #endif } void ncd_mips_state::machine_reset() { // m_entry = 0; // m_stage = 0; // m_r = m_g = m_b = 0; } INTERRUPT_GEN_MEMBER(ncd_mips_state::vblank) { } uint32_t ncd_mips_state::screen_update(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect) { return 0; } READ32_MEMBER(ncd_mips_state::unk_r) { return 0xffffffff; } WRITE32_MEMBER(ncd_mips_state::tty_w) { printf("%c", (data>>16) & 0x7f); } void ncd_mips_state::hmxpro_map(address_map &map) { map(0x00000000, 0x003fffff).ram(); // VRAM map(0x10000000, 0x103fffff).ram(); map(0x18000028, 0x1800002b).r(FUNC(ncd_mips_state::unk_r)); map(0x18000058, 0x1800005b).w(FUNC(ncd_mips_state::tty_w)); map(0x19000010, 0x19000013).r(FUNC(ncd_mips_state::unk_r)); map(0x1b000000, 0x1b00007f).rw(m_duart, FUNC(scn2681_device::read), FUNC(scn2681_device::write)).umask32(0xff000000); map(0x1fc00000, 0x1fc3ffff).rom().region("maincpu", 0); map(0x20000000, 0x207fffff).ram(); } WRITE_LINE_MEMBER(ncd_mips_state::duart_irq_handler) { //m_maincpu->set_input_line(M68K_IRQ_6, state); } void ncd_mips_state::hmxpro(machine_config &config) { /* basic machine hardware */ R4600BE(config, m_maincpu, 50000000); m_maincpu->set_addrmap(AS_PROGRAM, &ncd_mips_state::hmxpro_map); m_maincpu->set_periodic_int(FUNC(ncd_mips_state::vblank), attotime::from_hz(70.06)); SCN2681(config, m_duart, 3.6864_MHz_XTAL); m_duart->irq_cb().set(FUNC(ncd_mips_state::duart_irq_handler)); SCREEN(config, m_screen, SCREEN_TYPE_RASTER); m_screen->set_raw(77.4144_MHz_XTAL, 1376, 0, 1024, 803, 0, 768); m_screen->set_screen_update(FUNC(ncd_mips_state::screen_update)); } static INPUT_PORTS_START( hmxpro ) INPUT_PORTS_END /*************************************************************************** ROM definition(s) ***************************************************************************/ ROM_START( hmxpro ) ROM_REGION32_BE(0x40000, "maincpu", 0) ROM_LOAD16_BYTE( "ncdhmx_bm_v2.7.2_b0e.bin", 0x000000, 0x020000, CRC(66072e5c) SHA1(a12dbd3befda55f755e684ba6e5c3b067f2ded93) ) ROM_LOAD16_BYTE( "ncdhmx_bm_v2.7.2_b0o.bin", 0x000001, 0x020000, CRC(7f7af795) SHA1(5b31bda8cb42dfb52869d29637fe415e43aa53f4) ) ROM_END // YEAR NAME PARENT COMPAT MACHINE INPUT CLASS INIT COMPANY FULLNAME FLAGS COMP( 1994, hmxpro, 0, 0, hmxpro, hmxpro, ncd_mips_state, empty_init, "Network Computing Devices", "NCD HMX PRO", MACHINE_NOT_WORKING|MACHINE_NO_SOUND )