// license:BSD-3-Clause // copyright-holders: /*********************************************************************************************************************************** Skeleton driver for Qume QVT-103 video display terminal. ************************************************************************************************************************************/ #include "emu.h" #include "cpu/z80/z80.h" #include "cpu/mcs48/mcs48.h" #include "machine/nvram.h" #include "machine/z80ctc.h" #include "machine/z80sio.h" #include "video/crt9007.h" #include "emupal.h" #include "screen.h" class qvt103_state : public driver_device { public: qvt103_state(const machine_config &mconfig, device_type type, const char *tag) : driver_device(mconfig, type, tag) , m_maincpu(*this, "maincpu") , m_p_chargen(*this, "chargen") , m_vram(*this, "vram") { } void qvt103(machine_config &config); private: u32 screen_update(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect); void io_map(address_map &map); void mem_map(address_map &map); required_device m_maincpu; required_region_ptr m_p_chargen; required_shared_ptr m_vram; }; u32 qvt103_state::screen_update(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect) { for (int col = 0; col < 25; col++) { for (int row = 0; row < 80; row++) { uint8_t code = m_vram[col * 80 + row] & 0x7f; for (int y = 0; y < 12; y++) { uint16_t gfx = m_p_chargen[code << 4 | y]; for (int x = 0; x < 8; x++) bitmap.pix(col*12 + y, row*8 + (7 - x)) = BIT(gfx, x) ? rgb_t::white() : rgb_t::black(); } } } return 0; } void qvt103_state::mem_map(address_map &map) { map.unmap_value_high(); map(0x0000, 0x5fff).rom().region("maincpu", 0); map(0x6000, 0x6001).rw("kbdmcu", FUNC(i8741a_device::upi41_master_r), FUNC(i8741a_device::upi41_master_w)); // map(0x6000, 0x6001).lr8("test", [this]() -> u8 { return machine().rand(); }); // uncomment to pass kbd test map(0x8000, 0x87ff).ram().share("nvram"); map(0xa000, 0xa03f).rw("vpac", FUNC(crt9007_device::read), FUNC(crt9007_device::write)); map(0xc000, 0xdfff).ram(); // not entirely contiguous? map(0xe000, 0xffff).ram().share("vram"); } void qvt103_state::io_map(address_map &map) { map.global_mask(0xff); map(0x14, 0x17).rw("dart", FUNC(z80dart_device::ba_cd_r), FUNC(z80dart_device::ba_cd_w)); map(0x18, 0x1b).rw("ctc", FUNC(z80ctc_device::read), FUNC(z80ctc_device::write)); } static INPUT_PORTS_START( qvt103 ) INPUT_PORTS_END static const gfx_layout char_layout = { 8,12, RGN_FRAC(1,1), 1, { 0 }, { 7, 0, 1, 2, 3, 4, 5, 6 }, // drawing chars look better with 0, 1, 2, 3, 4, 5, 6, 7 { 0*8, 1*8, 2*8, 3*8, 4*8, 5*8, 6*8, 7*8, 8*8, 9*8, 10*8, 11*8 }, 8*16 }; static GFXDECODE_START(chars) GFXDECODE_ENTRY("chargen", 0, char_layout, 0, 1) GFXDECODE_END static const z80_daisy_config daisy_chain[] = { { "dart" }, { "ctc" }, { nullptr } }; void qvt103_state::qvt103(machine_config &config) { Z80(config, m_maincpu, 29.376_MHz_XTAL / 9); // divider guessed m_maincpu->set_addrmap(AS_PROGRAM, &qvt103_state::mem_map); m_maincpu->set_addrmap(AS_IO, &qvt103_state::io_map); m_maincpu->set_daisy_config(daisy_chain); NVRAM(config, "nvram", nvram_device::DEFAULT_ALL_0); // TC5516APL + battery z80ctc_device &ctc(Z80CTC(config, "ctc", 29.376_MHz_XTAL / 9)); ctc.intr_callback().set_inputline(m_maincpu, INPUT_LINE_IRQ0); z80dart_device &dart(Z80DART(config, "dart", 29.376_MHz_XTAL / 9)); dart.out_int_callback().set_inputline(m_maincpu, INPUT_LINE_IRQ0); screen_device &screen(SCREEN(config, "screen", SCREEN_TYPE_RASTER)); screen.set_raw(29.376_MHz_XTAL * 2 / 3, 102 * 10, 0, 80 * 10, 320, 0, 300); //screen.set_raw(29.376_MHz_XTAL, 170 * 9, 0, 132 * 9, 320, 0, 300); screen.set_screen_update(FUNC(qvt103_state::screen_update)); PALETTE(config, "palette", palette_device::MONOCHROME_HIGHLIGHT); GFXDECODE(config, "gfxdecode", "palette", chars); crt9007_device &vpac(CRT9007(config, "vpac", 29.376_MHz_XTAL / 15)); vpac.set_character_width(10); vpac.int_callback().set("ctc", FUNC(z80ctc_device::trg3)); I8741A(config, "kbdmcu", 6_MHz_XTAL); } /************************************************************************************************************** Qume QVT-103. Chips: Z80A, Z80A DART, Z80A CTC, 2x CRT9212, 5x HM6116P-2, TC5516APL, D8741AD, CRT9007, 1x 10-sw dip, Button battery. Crystals: (all hard to read) 29.376, 6.000 Keyboard CPU, Crystal, ROM are on the main board. ***************************************************************************************************************/ ROM_START( qvt103 ) ROM_REGION(0x6000, "maincpu", 0) ROM_LOAD( "t103e1.u28", 0x0000, 0x2000, CRC(eace3cbe) SHA1(1e7f395c5233d8656df5305163d050275f0a8033) ) ROM_LOAD( "t103e2.u27", 0x2000, 0x4000, CRC(100cf542) SHA1(4b2569d509790a0f94b4447fb9d3d42582fcaf66) ) ROM_REGION(0x1000, "chargen", 0) ROM_LOAD( "c103b.u40", 0x0000, 0x1000, CRC(3419760d) SHA1(3455c70ed48c7f7769d73a84f152beddf508094f) ) ROM_REGION(0x0400, "kbdmcu", 0) ROM_LOAD( "k304a.u24", 0x0000, 0x0400, CRC(e4b1f0da) SHA1(e9f8c48c34105464b3db206b34f67e7603484fea) ) ROM_END COMP( 1983, qvt103, 0, 0, qvt103, qvt103, qvt103_state, empty_init, "Qume", "QVT-103", MACHINE_IS_SKELETON )