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Diffstat (limited to 'src/mame/drivers/proteus3.cpp')
-rw-r--r-- | src/mame/drivers/proteus3.cpp | 509 |
1 files changed, 0 insertions, 509 deletions
diff --git a/src/mame/drivers/proteus3.cpp b/src/mame/drivers/proteus3.cpp deleted file mode 100644 index 846f61ccc9b..00000000000 --- a/src/mame/drivers/proteus3.cpp +++ /dev/null @@ -1,509 +0,0 @@ -// license:BSD-3-Clause -// copyright-holders:Robbbert -/****************************************************************************** - - Proteus III computer. - - 2015-10-02 Skeleton [Robbbert] - - Chips: - 6800 @ 894kHz - 6850 (TTY keyboard interface) - 6850 (Cassette interface) - 6820 (PIA for Keyboard and video - 6844 DMA - MC14411 baud rate generator - CRT96364 CRTC @1008kHz - - There's an undumped 74S287 prom (M24) in the video section. - It converts ascii control codes into the crtc control codes - - Schematic has lots of errors and omissions. - - Like many systems of the time, the cassette is grossly over-complicated, - using 12 chips for a standard Kansas-city interface. Speed = 600 baud. - - To use the serial keyboard, type in the command: PORT#1 - and to go back to the parallel keyboard type in: PORT#0 - - The Basic seems rather buggy and does odd things from time to time. - bios 0 doesn't seem to have any way to backspace and type over - bios 0 is the only one to have the EDIT command, although no idea how - to use it. - bios 2 is from a compatible system called "Micro Systemes 1", from the - same company. - - To Do: - - Add support for k7 cassette files. - - Need software - - Need missing PROM, so that all the CRTC controls can be emulated - - Keyboard may have its own CPU etc, but no info available. - - Missing buttons: BYE, PANIC, SPEED, HERE-IS. Could be more. - - Should be able to type in some low-res graphics from the keyboard, not implemented. - -******************************************************************************/ - -#include "emu.h" - -#include "cpu/m6800/m6800.h" -#include "imagedev/cassette.h" -#include "machine/6821pia.h" -#include "machine/6850acia.h" -#include "machine/mc14411.h" -#include "machine/clock.h" -#include "machine/keyboard.h" -#include "machine/timer.h" - -#include "bus/rs232/rs232.h" - -#include "emupal.h" -#include "screen.h" -#include "speaker.h" - - -namespace { - -class proteus3_state : public driver_device -{ -public: - proteus3_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_pia(*this, "pia") - , m_brg(*this, "brg") - , m_acia1(*this, "acia1") - , m_acia2(*this, "acia2") - , m_cass(*this, "cassette") - , m_serial(*this, "SERIAL") - { } - - void proteus3(machine_config &config); - -protected: - virtual void machine_reset() override; - virtual void machine_start() override; - -private: - DECLARE_WRITE_LINE_MEMBER(ca2_w); - void video_w(u8 data); - void kbd_put(u8 data); - DECLARE_WRITE_LINE_MEMBER(acia1_clock_w); - TIMER_DEVICE_CALLBACK_MEMBER(kansas_r); - u32 screen_update_proteus3(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect); - - // Clocks - void write_acia_clocks(int id, int state); - DECLARE_WRITE_LINE_MEMBER (write_f1_clock){ write_acia_clocks(mc14411_device::TIMER_F1, state); } - DECLARE_WRITE_LINE_MEMBER (write_f2_clock){ write_acia_clocks(mc14411_device::TIMER_F2, state); } - DECLARE_WRITE_LINE_MEMBER (write_f3_clock){ write_acia_clocks(mc14411_device::TIMER_F3, state); } - DECLARE_WRITE_LINE_MEMBER (write_f4_clock){ write_acia_clocks(mc14411_device::TIMER_F4, state); } - DECLARE_WRITE_LINE_MEMBER (write_f5_clock){ write_acia_clocks(mc14411_device::TIMER_F5, state); } - DECLARE_WRITE_LINE_MEMBER (write_f6_clock){ write_acia_clocks(mc14411_device::TIMER_F6, state); } - DECLARE_WRITE_LINE_MEMBER (write_f7_clock){ write_acia_clocks(mc14411_device::TIMER_F7, state); } - DECLARE_WRITE_LINE_MEMBER (write_f8_clock){ write_acia_clocks(mc14411_device::TIMER_F8, state); } - DECLARE_WRITE_LINE_MEMBER (write_f9_clock){ write_acia_clocks(mc14411_device::TIMER_F9, state); } - DECLARE_WRITE_LINE_MEMBER (write_f10_clock){ write_acia_clocks(mc14411_device::TIMER_F10, state); } - DECLARE_WRITE_LINE_MEMBER (write_f11_clock){ write_acia_clocks(mc14411_device::TIMER_F11, state); } - DECLARE_WRITE_LINE_MEMBER (write_f12_clock){ write_acia_clocks(mc14411_device::TIMER_F12, state); } - DECLARE_WRITE_LINE_MEMBER (write_f13_clock){ write_acia_clocks(mc14411_device::TIMER_F13, state); } - DECLARE_WRITE_LINE_MEMBER (write_f14_clock){ write_acia_clocks(mc14411_device::TIMER_F14, state); } - DECLARE_WRITE_LINE_MEMBER (write_f15_clock){ write_acia_clocks(mc14411_device::TIMER_F15, state); } - - void mem_map(address_map &map); - - u8 m_video_data; - u8 m_flashcnt; - u16 m_curs_pos; - u8 m_cass_data[4]; - bool m_cassbit, m_cassold, m_cassinbit; - std::unique_ptr<u8[]> m_vram; - required_device<cpu_device> m_maincpu; - required_region_ptr<u8> m_p_chargen; - required_device<pia6821_device> m_pia; - required_device<mc14411_device> m_brg; - required_device<acia6850_device> m_acia1; // cassette uart - required_device<acia6850_device> m_acia2; // tty keyboard uart - required_device<cassette_image_device> m_cass; - - // hardware configuration and things that need rewiring - required_ioport m_serial; -}; - - - - -/****************************************************************************** - Address Maps -******************************************************************************/ - -void proteus3_state::mem_map(address_map &map) -{ - map.unmap_value_high(); - map(0x0000, 0x7fff).ram(); - map(0x8004, 0x8007).rw(m_pia, FUNC(pia6821_device::read), FUNC(pia6821_device::write)); - map(0x8008, 0x8009).rw(m_acia1, FUNC(acia6850_device::read), FUNC(acia6850_device::write)); // cassette - map(0x8010, 0x8011).rw(m_acia2, FUNC(acia6850_device::read), FUNC(acia6850_device::write)); // serial keyboard 7E2 (never writes data) - map(0xc000, 0xffff).rom().region("maincpu", 0); -} - - -/****************************************************************************** - Input Ports -******************************************************************************/ - -static INPUT_PORTS_START(proteus3) - PORT_START("SERIAL") - PORT_CONFNAME(0x0F , 0x00 , "Serial Baud Rate") // F1-F16 pins on MC14411 in X16 - PORT_CONFSETTING(mc14411_device::TIMER_F1, "9600") - PORT_CONFSETTING(mc14411_device::TIMER_F2, "7200") - PORT_CONFSETTING(mc14411_device::TIMER_F3, "4800") - PORT_CONFSETTING(mc14411_device::TIMER_F4, "3600") - PORT_CONFSETTING(mc14411_device::TIMER_F5, "2400") - PORT_CONFSETTING(mc14411_device::TIMER_F6, "1800") - PORT_CONFSETTING(mc14411_device::TIMER_F7, "1200") - PORT_CONFSETTING(mc14411_device::TIMER_F8, "600") - PORT_CONFSETTING(mc14411_device::TIMER_F9, "300") - PORT_CONFSETTING(mc14411_device::TIMER_F10, "200") - PORT_CONFSETTING(mc14411_device::TIMER_F11, "150") - PORT_CONFSETTING(mc14411_device::TIMER_F12, "134.5") - PORT_CONFSETTING(mc14411_device::TIMER_F13, "110") - PORT_CONFSETTING(mc14411_device::TIMER_F14, "75") - PORT_CONFSETTING(mc14411_device::TIMER_F15, "57600") - PORT_CONFSETTING(mc14411_device::TIMER_F16, "115200") -INPUT_PORTS_END - -void proteus3_state::kbd_put(u8 data) -{ - if (data == 0x08) - data = 0x0f; // take care of backspace (bios 1 and 2) - m_pia->portb_w(data); - m_pia->cb1_w(1); - m_pia->cb1_w(0); -} - -void proteus3_state::write_acia_clocks(int id, int state) -{ - if (id == m_serial->read()) // Configurable serial port - { - m_acia2->write_txc(state); - m_acia2->write_rxc(state); - } - if (id == mc14411_device::TIMER_F8) // Fixed bitrate for the cassette interface - { - acia1_clock_w(state); - } -} - -/****************************************************************************** - Cassette -******************************************************************************/ - -TIMER_DEVICE_CALLBACK_MEMBER( proteus3_state::kansas_r ) -{ - // no tape - set uart to idle - m_cass_data[1]++; - if (m_cass_data[1] > 32) - { - m_cass_data[1] = 32; - m_cassinbit = 1; - } - - /* cassette - turn 1200/2400Hz to a bit */ - u8 cass_ws = (m_cass->input() > +0.04) ? 1 : 0; - - if (cass_ws != m_cass_data[0]) - { - m_cass_data[0] = cass_ws; - m_cassinbit = (m_cass_data[1] < 12) ? 1 : 0; - m_cass_data[1] = 0; - } -} - -WRITE_LINE_MEMBER( proteus3_state::acia1_clock_w ) -{ - // Save - 8N2 - /16 - 600baud - // Load - 8N2 - /1 - u8 twobit = m_cass_data[3] & 15; - // incoming @9600Hz - if (state) - { - if (twobit == 0) - { - m_cassold = m_cassbit; - // synchronous rx - m_acia1->write_rxc(0); - m_acia1->write_rxd(m_cassinbit); - m_acia1->write_rxc(1); - } - - if (m_cassold) - m_cass->output(BIT(m_cass_data[3], 1) ? +1.0 : -1.0); // 2400Hz - else - m_cass->output(BIT(m_cass_data[3], 2) ? +1.0 : -1.0); // 1200Hz - - m_cass_data[3]++; - } - - m_acia1->write_txc(state); -} - - -/****************************************************************************** - Video -******************************************************************************/ -void proteus3_state::video_w(u8 data) -{ - m_video_data = data; -} - -WRITE_LINE_MEMBER( proteus3_state::ca2_w ) -{ - if (state) - { - switch(m_video_data) - { - case 0x0a: // Line Feed - if (m_curs_pos > 959) // on bottom line? - { - memmove(m_vram.get(), m_vram.get()+64, 960); // scroll - memset(m_vram.get()+960, 0x20, 64); // blank bottom line - } - else - m_curs_pos += 64; - break; - case 0x0d: // Carriage Return - m_curs_pos &= 0x3c0; - break; - case 0x0c: // CLS - m_curs_pos = 0; // home cursor - memset(m_vram.get(), 0x20, 1024); // clear screen - break; - case 0x0f: // Cursor Left - if (m_curs_pos) - m_curs_pos--; - break; - case 0x7f: // Erase character under cursor - m_vram[m_curs_pos] = 0x20; - break; - default: // If a displayable character, show it - if ((m_video_data > 0x1f) && (m_video_data < 0x7f)) - { - m_vram[m_curs_pos] = m_video_data; - m_curs_pos++; - if (m_curs_pos > 1023) // have we run off the bottom? - { - m_curs_pos -= 64; - memmove(m_vram.get(), m_vram.get()+64, 960); // scroll - memset(m_vram.get()+960, 0x20, 64); // blank bottom line - } - } - } - } -} - -u32 proteus3_state::screen_update_proteus3(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect) -{ - u16 sy=0,ma=0; - m_flashcnt++; - - for (u8 y = 0; y < 16; y++ ) - { - for (u8 ra = 0; ra < 12; ra++) - { - u16 *p = &bitmap.pix(sy++); - - for (u16 x = ma; x < ma + 64; x++) - { - u8 gfx = 0; - if (ra < 8) - { - u8 chr = m_vram[x]; // get char in videoram - gfx = m_p_chargen[(chr<<3) | ra]; // get dot pattern in chargen - } - else if ((ra == 9) && (m_curs_pos == x) && BIT(m_flashcnt, 4)) - gfx = 0xff; - - /* Display a scanline of a character */ - *p++ = BIT(gfx, 0); - *p++ = BIT(gfx, 1); - *p++ = BIT(gfx, 2); - *p++ = BIT(gfx, 3); - *p++ = BIT(gfx, 4); - *p++ = BIT(gfx, 5); - *p++ = BIT(gfx, 6); - *p++ = BIT(gfx, 7); - } - } - ma+=64; - } - return 0; -} - - -/* F4 Character Displayer */ -static const gfx_layout charlayout = -{ - 8, 8, /* 8 x 8 characters */ - 128, /* 128 characters */ - 1, /* 1 bits per pixel */ - { 0 }, /* no bitplanes */ - /* x offsets */ - { 7, 6, 5, 4, 3, 2, 1, 0 }, - /* y offsets */ - { 0*8, 1*8, 2*8, 3*8, 4*8, 5*8, 6*8, 7*8 }, - 8*8 /* every char takes 8 bytes */ -}; - -static GFXDECODE_START( gfx_proteus3 ) - GFXDECODE_ENTRY( "chargen", 0, charlayout, 0, 1 ) -GFXDECODE_END - - -void proteus3_state::machine_reset() -{ - m_curs_pos = 0; - m_cass_data[0] = m_cass_data[1] = m_cass_data[2] = m_cass_data[3] = 0; - m_cassbit = 1; - m_cassold = 1; - m_acia1->write_rxd(1); - - // Set up the BRG divider. RSA is a jumper setting and RSB is always set High - m_brg->rsa_w( CLEAR_LINE ); - m_brg->rsb_w( ASSERT_LINE ); - - // Disable all configured timers, only enabling the used ones - m_brg->timer_disable_all(); - m_brg->timer_enable((mc14411_device::timer_id) m_serial->read(), true); // Serial port - m_brg->timer_enable( mc14411_device::TIMER_F8, true); // Cassette interface -} - -void proteus3_state::machine_start() -{ - m_vram = make_unique_clear<u8[]>(0x0400); - save_pointer(NAME(m_vram), 0x0400); - save_item(NAME(m_video_data)); - save_item(NAME(m_flashcnt)); - save_item(NAME(m_curs_pos)); - save_item(NAME(m_cass_data)); - save_item(NAME(m_cassbit)); - save_item(NAME(m_cassold)); - save_item(NAME(m_cassinbit)); - - m_flashcnt = 0; -} - -/****************************************************************************** - Machine Drivers -******************************************************************************/ - -void proteus3_state::proteus3(machine_config &config) -{ - /* basic machine hardware */ - M6800(config, m_maincpu, XTAL(3'579'545)); /* Divided by 4 internally */ - m_maincpu->set_addrmap(AS_PROGRAM, &proteus3_state::mem_map); - - /* video hardware */ - screen_device &screen(SCREEN(config, "screen", SCREEN_TYPE_RASTER)); - screen.set_refresh_hz(50); - screen.set_vblank_time(ATTOSECONDS_IN_USEC(200)); - screen.set_size(64*8, 16*12); - screen.set_visarea(0, 64*8-1, 0, 16*12-1); - screen.set_screen_update(FUNC(proteus3_state::screen_update_proteus3)); - screen.set_palette("palette"); - GFXDECODE(config, "gfxdecode", "palette", gfx_proteus3); - PALETTE(config, "palette", palette_device::MONOCHROME); - - /* Devices */ - PIA6821(config, m_pia, 0); - m_pia->writepa_handler().set(FUNC(proteus3_state::video_w)); - m_pia->ca2_handler().set(FUNC(proteus3_state::ca2_w)); - m_pia->irqb_handler().set_inputline("maincpu", M6800_IRQ_LINE); - - generic_keyboard_device &keyboard(GENERIC_KEYBOARD(config, "keyboard", 0)); - keyboard.set_keyboard_callback(FUNC(proteus3_state::kbd_put)); - - /* cassette */ - ACIA6850(config, m_acia1, 0); - m_acia1->txd_handler().set([this] (bool state) { m_cassbit = state; }); - - SPEAKER(config, "mono").front_center(); - - CASSETTE(config, m_cass); - m_cass->set_default_state(CASSETTE_STOPPED | CASSETTE_MOTOR_ENABLED | CASSETTE_SPEAKER_ENABLED); - m_cass->add_route(ALL_OUTPUTS, "mono", 0.05); - TIMER(config, "kansas_r").configure_periodic(FUNC(proteus3_state::kansas_r), attotime::from_hz(40000)); - - // optional tty keyboard - ACIA6850(config, m_acia2, 0); - m_acia2->txd_handler().set("rs232", FUNC(rs232_port_device::write_txd)); - m_acia2->rts_handler().set("rs232", FUNC(rs232_port_device::write_rts)); - - rs232_port_device &rs232(RS232_PORT(config, "rs232", default_rs232_devices, "keyboard")); - rs232.rxd_handler().set(m_acia2, FUNC(acia6850_device::write_rxd)); - rs232.cts_handler().set(m_acia2, FUNC(acia6850_device::write_cts)); - - /* Bit Rate Generator */ - MC14411(config, m_brg, XTAL(1'843'200)); // crystal needs verification but is the likely one - m_brg->out_f<1>().set(FUNC(proteus3_state::write_f1_clock)); - m_brg->out_f<2>().set(FUNC(proteus3_state::write_f2_clock)); - m_brg->out_f<3>().set(FUNC(proteus3_state::write_f3_clock)); - m_brg->out_f<4>().set(FUNC(proteus3_state::write_f4_clock)); - m_brg->out_f<5>().set(FUNC(proteus3_state::write_f5_clock)); - m_brg->out_f<6>().set(FUNC(proteus3_state::write_f6_clock)); - m_brg->out_f<7>().set(FUNC(proteus3_state::write_f7_clock)); - m_brg->out_f<8>().set(FUNC(proteus3_state::write_f8_clock)); - m_brg->out_f<9>().set(FUNC(proteus3_state::write_f9_clock)); - m_brg->out_f<10>().set(FUNC(proteus3_state::write_f10_clock)); - m_brg->out_f<11>().set(FUNC(proteus3_state::write_f11_clock)); - m_brg->out_f<12>().set(FUNC(proteus3_state::write_f12_clock)); - m_brg->out_f<13>().set(FUNC(proteus3_state::write_f13_clock)); - m_brg->out_f<14>().set(FUNC(proteus3_state::write_f14_clock)); - m_brg->out_f<15>().set(FUNC(proteus3_state::write_f15_clock)); -} - - - -/****************************************************************************** - ROM Definitions -******************************************************************************/ - -ROM_START(proteus3) - ROM_REGION(0x4000, "maincpu", ROMREGION_ERASE00) // if c000 isn't 0 it assumes a rom is there and jumps to it - ROM_SYSTEM_BIOS( 0, "14k", "14k BASIC") - ROMX_LOAD( "bas1.bin", 0x0800, 0x0800, CRC(016bf2d6) SHA1(89605dbede3b6fd101ee0548e5c545a0824fcfd3), ROM_BIOS(0) ) - ROMX_LOAD( "bas2.bin", 0x1000, 0x0800, CRC(39d3e543) SHA1(dd0fe220e3c2a48ce84936301311cbe9f1597ca7), ROM_BIOS(0) ) - ROMX_LOAD( "bas3.bin", 0x1800, 0x0800, CRC(3a41617d) SHA1(175406f4732389e226bc50d27ada39e6ea48de34), ROM_BIOS(0) ) - ROMX_LOAD( "bas4.bin", 0x2000, 0x0800, CRC(ee9d77ee) SHA1(f7e60a1ab88a3accc8ffdc545657c071934d09d2), ROM_BIOS(0) ) - ROMX_LOAD( "bas5.bin", 0x2800, 0x0800, CRC(bd81bb34) SHA1(6325735e5750a9536e63b67048f74711fae1fa42), ROM_BIOS(0) ) - ROMX_LOAD( "bas6.bin", 0x3000, 0x0800, CRC(60cd006b) SHA1(28354f78490da1eb5116cbbc43eaca0670f7f398), ROM_BIOS(0) ) - ROMX_LOAD( "bas7.bin", 0x3800, 0x0800, CRC(84c3dc22) SHA1(8fddba61b5f0270ca2daef32ab5edfd60300c776), ROM_BIOS(0) ) - - ROM_SYSTEM_BIOS( 1, "8k", "8k BASIC") - ROMX_LOAD( "proteus3_basic8k.m0", 0x2000, 0x2000, CRC(7d9111c2) SHA1(3c032c9c7f87d22a1a9819b3b812be84404d2ad2), ROM_BIOS(1) ) - ROM_RELOAD( 0x0000, 0x2000 ) - - ROM_SYSTEM_BIOS( 2, "8kms", "8k Micro-Systemes BASIC") - ROMX_LOAD( "ms1_basic8k.bin", 0x2000, 0x2000, CRC(b5476e28) SHA1(c8c2366d549b2645c740be4ab4237e05c3cab4a9), ROM_BIOS(2) ) - ROM_RELOAD( 0x0000, 0x2000 ) - - ROM_REGION(0x0400, "chargen", 0) - ROM_LOAD( "proteus3_font.m25", 0x0200, 0x0100, CRC(6a3a30a5) SHA1(ab39bf09722928483e497b87ac2dbd870828893b) ) - ROM_CONTINUE( 0x100, 0x100 ) - ROM_CONTINUE( 0x300, 0x100 ) - ROM_CONTINUE( 0x000, 0x100 ) - - ROM_REGION(0x0800, "user1", 0) // roms not used yet - // Proteus III - pbug F800-FFFF, expects RAM at F000-F7FF - ROM_LOAD( "proteus3_pbug.bin", 0x0000, 0x0800, CRC(1118694d) SHA1(2dfc08d405e8f2936f5b0bd1c4007995151abbba) ) -ROM_END - -} // Anonymous namespace - - -/****************************************************************************** - Drivers -******************************************************************************/ - -// YEAR NAME PARENT COMPAT MACHINE INPUT CLASS INIT COMPANY FULLNAME FLAGS -COMP( 1978, proteus3, 0, 0, proteus3, proteus3, proteus3_state, empty_init, "Proteus International", "Proteus III", MACHINE_NOT_WORKING | MACHINE_NO_SOUND_HW | MACHINE_SUPPORTS_SAVE ) |