// license:BSD-3-Clause // copyright-holders: /*********************************************************************************************************************************** 2017-11-02 Skeleton Hazeltine Esprit terminals. Espirit: R6502P, R6531, HD46505RP, MC6850P, 16.5888 Espirit3: 2x R6551AP, HD46850P (6850), R6502BP, R6545-1AP, R6522AP, RO-3-9333B, 1.8432, 17.9712 ************************************************************************************************************************************/ #include "emu.h" #include "cpu/m6502/m6502.h" #include "machine/input_merger.h" #include "machine/6850acia.h" #include "machine/6522via.h" #include "machine/mos6551.h" #include "video/mc6845.h" #include "emupal.h" #include "screen.h" class esprit_state : public driver_device { public: esprit_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_p_videoram(*this, "videoram") , m_palette(*this, "palette") { } void esprit(machine_config &config); void esprit3(machine_config &config); void init_init(); private: MC6845_UPDATE_ROW(crtc_update_row); MC6845_ON_UPDATE_ADDR_CHANGED(crtc_update_addr); void mem3_map(address_map &map); void mem_map(address_map &map); required_device m_maincpu; required_region_ptr m_p_chargen; required_shared_ptr m_p_videoram; optional_device m_palette; }; void esprit_state::mem_map(address_map &map) { map.global_mask(0x7fff); map(0x0058, 0x0058).rw("crtc", FUNC(mc6845_device::status_r), FUNC(mc6845_device::address_w)); map(0x0059, 0x0059).rw("crtc", FUNC(mc6845_device::register_r), FUNC(mc6845_device::register_w)); map(0x0078, 0x0079).rw("acia", FUNC(acia6850_device::read), FUNC(acia6850_device::write)); map(0x0080, 0x00ff).mirror(0x100).ram(); //map(0x0780, 0x078e).rw("rrioc", FUNC(r6531_device::io_r), FUNC(r6531_device::io_w)); map(0x2000, 0x27ff).ram().share("videoram"); map(0x7000, 0x7fff).rom().region("roms", 0); } void esprit_state::mem3_map(address_map &map) { map(0x0000, 0x202f).ram(); map(0x2030, 0x3fff).ram().share("videoram"); // it might start at 3000 map(0x81c0, 0x81c0).rw("crtc", FUNC(r6545_1_device::status_r), FUNC(r6545_1_device::address_w)); map(0x81c1, 0x81c1).rw("crtc", FUNC(r6545_1_device::register_r), FUNC(r6545_1_device::register_w)); map(0x93c0, 0x93c1).rw("acia", FUNC(acia6850_device::read), FUNC(acia6850_device::write)); map(0x95c0, 0x95c3).rw("acia1", FUNC(mos6551_device::read), FUNC(mos6551_device::write)); map(0x99c0, 0x99c3).rw("acia2", FUNC(mos6551_device::read), FUNC(mos6551_device::write)); map(0xb1c0, 0xb1cf).m("via", FUNC(via6522_device::map)); map(0xe000, 0xffff).rom().region("roms", 0); } static INPUT_PORTS_START( esprit ) INPUT_PORTS_END MC6845_UPDATE_ROW(esprit_state::crtc_update_row) { const rgb_t *pens = m_palette->palette()->entry_list_raw(); uint32_t *p = &bitmap.pix32(y); for (uint16_t x = 0; x < x_count; x++) { uint16_t mem = (ma + x) & 0x7ff; uint8_t chr = m_p_videoram[mem]; /* get pattern of pixels for that character scanline */ uint16_t gfx = m_p_chargen[(chr<<4) | ra] ^ ((x == cursor_x) ? 0x1ff : 0); /* Display a scanline of a character (9 pixels) */ *p++ = pens[BIT(gfx, 8)]; *p++ = pens[BIT(gfx, 7)]; *p++ = pens[BIT(gfx, 6)]; *p++ = pens[BIT(gfx, 5)]; *p++ = pens[BIT(gfx, 4)]; *p++ = pens[BIT(gfx, 3)]; *p++ = pens[BIT(gfx, 2)]; *p++ = pens[BIT(gfx, 1)]; *p++ = pens[BIT(gfx, 0)]; } } MC6845_ON_UPDATE_ADDR_CHANGED(esprit_state::crtc_update_addr) { } /* F4 Character Displayer */ static const gfx_layout esprit_charlayout = { 8, 12, /* 8 x 12 characters */ 256, /* 256 characters */ 1, /* 1 bits per pixel */ { 0 }, /* no bitplanes */ /* x offsets */ { 0, 1, 2, 3, 4, 5, 6, 7 }, /* y offsets */ { 0, 8, 2*8, 3*8, 4*8, 5*8, 6*8, 7*8, 8*8, 9*8, 10*8, 11*8 }, 8*16 /* every char takes 16 bytes */ }; static GFXDECODE_START( gfx_esprit ) GFXDECODE_ENTRY( "chargen", 0x0000, esprit_charlayout, 0, 1 ) GFXDECODE_END void esprit_state::init_init() { // chargen is incomplete, copy the first half into the vacant second half for (u16 i = 0; i < 0x800; i++) m_p_chargen[0x800 | i] = m_p_chargen[i]; } void esprit_state::esprit(machine_config &config) { M6502(config, m_maincpu, 16.5888_MHz_XTAL / 18); // divider guessed m_maincpu->set_addrmap(AS_PROGRAM, &esprit_state::mem_map); //R6531(config, "rrioc", 16.5888_MHz_XTAL / 18); acia6850_device &acia(ACIA6850(config, "acia")); acia.irq_handler().set_inputline(m_maincpu, m6502_device::NMI_LINE); /* video hardware */ screen_device &screen(SCREEN(config, "screen", SCREEN_TYPE_RASTER)); screen.set_color(rgb_t::green()); screen.set_raw(16.5888_MHz_XTAL, 900, 0, 720, 307, 0, 288); screen.set_screen_update("crtc", FUNC(mc6845_device::screen_update)); GFXDECODE(config, "gfxdecode", m_palette, gfx_esprit); PALETTE(config, m_palette, palette_device::MONOCHROME); /* Devices */ mc6845_device &crtc(MC6845(config, "crtc", 16.5888_MHz_XTAL / 9)); crtc.set_screen("screen"); crtc.set_show_border_area(false); crtc.set_char_width(9); crtc.set_update_row_callback(FUNC(esprit_state::crtc_update_row)); } void esprit_state::esprit3(machine_config &config) { M6502(config, m_maincpu, 17.9712_MHz_XTAL / 18); // divider guessed m_maincpu->set_addrmap(AS_PROGRAM, &esprit_state::mem3_map); INPUT_MERGER_ANY_HIGH(config, "mainirq").output_handler().set_inputline(m_maincpu, m6502_device::IRQ_LINE); acia6850_device &acia(ACIA6850(config, "acia")); acia.irq_handler().set("mainirq", FUNC(input_merger_device::in_w<2>)); mos6551_device &acia1(MOS6551(config, "acia1", 17.9712_MHz_XTAL / 18)); acia1.set_xtal(1.8432_MHz_XTAL); acia1.irq_handler().set("mainirq", FUNC(input_merger_device::in_w<0>)); mos6551_device &acia2(MOS6551(config, "acia2", 17.9712_MHz_XTAL / 18)); acia2.set_xtal(1.8432_MHz_XTAL); acia2.irq_handler().set("mainirq", FUNC(input_merger_device::in_w<1>)); via6522_device &via(VIA6522(config, "via", 17.9712_MHz_XTAL / 18)); via.irq_handler().set_inputline(m_maincpu, m6502_device::NMI_LINE); via.writepb_handler().set("acia", FUNC(acia6850_device::write_rxc)).bit(7); via.writepb_handler().append("acia", FUNC(acia6850_device::write_txc)).bit(7); /* video hardware */ screen_device &screen(SCREEN(config, "screen", SCREEN_TYPE_RASTER)); screen.set_color(rgb_t::green()); screen.set_raw(17.9712_MHz_XTAL, 936, 0, 720, 320, 0, 288); screen.set_screen_update("crtc", FUNC(r6545_1_device::screen_update)); GFXDECODE(config, "gfxdecode", m_palette, gfx_esprit); PALETTE(config, m_palette, palette_device::MONOCHROME); r6545_1_device &crtc(R6545_1(config, "crtc", 17.9712_MHz_XTAL / 9)); crtc.set_screen("screen"); crtc.set_show_border_area(false); crtc.set_char_width(9); crtc.set_update_row_callback(FUNC(esprit_state::crtc_update_row)); crtc.set_on_update_addr_change_callback(FUNC(esprit_state::crtc_update_addr)); crtc.out_hsync_callback().set("via", FUNC(via6522_device::write_pb6)).invert(); } ROM_START( esprit ) // Esprit ROM_REGION( 0x1000, "roms", 0 ) ROM_LOAD( "hazeltine_esprit.u19", 0x0000, 0x1000, CRC(6fdec792) SHA1(a1d1d68c8793e7e15ab5cd17682c299dff3985cb) ) ROM_REGION( 0x1000, "chargen", ROMREGION_INVERT ) ROM_LOAD( "hazeltine_esprit.u26", 0x0000, 0x0804, CRC(93f45f13) SHA1(1f493b44124c348759469e24fdfa8b7c52fe6fac) ) ROM_REGION( 0x0800, "rrioc", 0 ) ROM_LOAD( "r3198-11.u20", 0x0000, 0x0800, NO_DUMP ) // internal ROM apparently unused ROM_END ROM_START( esprit3 ) // Esprit III ROM_REGION( 0x10000, "roms", 0 ) ROM_LOAD( "hazeltine_espritiii.u5", 0x0000, 0x2000, CRC(fd63dad1) SHA1(b2a3e7db8480b28cab2b2834ad89fb6257f13cba) ) ROM_REGION( 0x1000, "chargen", 0 ) ROM_LOAD( "hazeltine_espritiii.u19", 0x0000, 0x1000, CRC(33e4a8ef) SHA1(e19c84a3c5f94812928ea84bab3ede7970dd5e72) ) ROM_END COMP( 1981, esprit, 0, 0, esprit, esprit, esprit_state, init_init, "Hazeltine", "Esprit", MACHINE_IS_SKELETON ) COMP( 1981, esprit3, esprit, 0, esprit3, esprit, esprit_state, empty_init, "Hazeltine", "Esprit III", MACHINE_IS_SKELETON )