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-// license:BSD-3-Clause
-// copyright-holders:Joakim Larsson Edstrom
-/*
- *
- * History of Didact
- *------------------
- * See didact.cpp
- *
- * The Esselte 100 was an original design with a CRT and a full Keyboard that also had a BASIC interpreter
- * extended with commands suitable for educational experiments using the exapansion bus and its built in
- * io control capabilities.
- *
- * The Esselte 1000 was an educational package based on Apple II plus software and literature but the relation
- * to Didact is at this point unknown so it is probably a pure Esselte software production. If this branded
- * distribution is recovered it will be added as a clone of the Apple II driver or just as softlist item.
- *
- * Misc links about the boards supported by this driver.
- *-----------------------------------------------------
- * http://elektronikforumet.com/forum/download/file.php?id=63988&mode=view
- * http://elektronikforumet.com/forum/viewtopic.php?f=2&t=79576&start=150#p1203915
- *
- * TODO:
- * -------------------------------
- * - Dump more ROM:s
- * - Keyboard for early rev PCB
- * - Expansion bus
- * - Expansion overlay
- * - Serial
- ****************************************************************************/
-
-#include "emu.h"
-#include "cpu/m6800/m6800.h"
-#include "machine/6821pia.h"
-#include "machine/74145.h"
-#include "machine/timer.h"
-
-// Features
-#include "imagedev/cassette.h"
-#include "bus/rs232/rs232.h"
-#include "speaker.h"
-#include "emupal.h"
-#include "screen.h"
-
-//**************************************************************************
-// MACROS / CONSTANTS
-//**************************************************************************
-
-//#define LOG_GENERAL (1U << 0)
-#define LOG_SETUP (1U << 1)
-#define LOG_SCAN (1U << 2)
-#define LOG_BANK (1U << 3)
-#define LOG_SCREEN (1U << 4)
-#define LOG_READ (1U << 5)
-#define LOG_CS (1U << 6)
-
-//#define VERBOSE (LOG_READ | LOG_GENERAL | LOG_SETUP | LOG_BANK)
-//#define LOG_OUTPUT_FUNC printf
-#include "logmacro.h"
-
-#define LOGSETUP(...) LOGMASKED(LOG_SETUP, __VA_ARGS__)
-#define LOGSCAN(...) LOGMASKED(LOG_SCAN, __VA_ARGS__)
-#define LOGBANK(...) LOGMASKED(LOG_BANK, __VA_ARGS__)
-#define LOGSCREEN(...) LOGMASKED(LOG_SCREEN, __VA_ARGS__)
-#define LOGR(...) LOGMASKED(LOG_READ, __VA_ARGS__)
-#define LOGCS(...) LOGMASKED(LOG_CS, __VA_ARGS__)
-
-#ifdef _MSC_VER
-#define FUNCNAME __func__
-#else
-#define FUNCNAME __PRETTY_FUNCTION__
-#endif
-
-#define PIA1_TAG "pia1"
-#define PIA2_TAG "pia2"
-
-/* __________________________________________________________________________________________________________________________________________
- * | The Didact Esselte 100 CPU board rev1, 14/8 1980 in-PCB coil +----
- * | +--+ +--+ +--+ +--+ +--+ +--+ +--------+ |VHF
- * | 74 74 74 74 74 74 7805CT 7805CT trim 3,5-13pF |+-----+ | | TV
- * | 157 393 04 10 00 03 2N2369 | || o-+ | | +----
- * | +--+ +--+ +--+ +--+ +--+ +--+ | |+---+ | | |
- * |1Kohm | +------+ | +----
- * |trim +----------+ |CVS
- * | 8 +--+ +--+ +--+ 7805CP | MON
- * | 0 74 74 74 +----
- * | 0 132 157 93 |
- * | 8 +--+ +--+ +--+ J401 |
- * | 1 +--+ +--+ +--+ LM339 |
- * | 4 74 +--+ +--+ 74 74 +--+ +--+ J402 |
- * | 165 74 74 122 00 74 74 4Mhz |
- * | J +--+ 157 393 +--+ +--+ 138 138 XTAL +----
- * | G +--+ +--+ +--+ +--+ +----+ +----+ +----+ |TAPE
- * | +----+ +----+ optional |
- * | CHAR VIDEO +--+ +----+ +----+ +----+ +----+ +----+ +----+ +----+ +----+ +====++ CPU PIA2 PIA1 +----
- * | ROM RAM 74 6116 6116 6116 6116 || |
- * | 2716 MK4118 245 alt alt alt alt 2x || 6802 6821 6821 +----
- * | +----+ +----+ +--+ MK4118 MK4118 MK4118 MK4118 2716 2716 2716 2716 2716|| |PRNT
- * |DIDACT ESS 100 CPU +----+ +----+ +----+ +----+ +----+ +----+ +----+ +----+ +----++ |
- * |___________________________________________________________________________________________________________+----+__+----+__+----+_____+----
- *
- * rev2 board had 4Kb more ROM memory, 2 x 2764 instead of the 6 x 2716 (note the rev1 piggyback on rightmost 2716) with funny address decoding.
- * Once we get a rom dump for rev 1 the driver need to accomodate another keymap too so probably needs to be splitted somehow.
- * __________________________________________________________________________________________________________________________________________
- * | The Didact Esselte 100 CPU board rev2, 15/4 1983 in-PCB coil +----
- * | +--+ +--+ +--+ +--+ +--+ +--+ +--------+ |VHF
- * | 74 74 74 74 74 74 7805CT 7805CT trim 3,5-13pF |+-----+ | | TV
- * | 93 393 10 393 00 03 2N2369 | || o-+ | | +----
- * | +--+ +--+ +--+ +--+ +--+ +--+ | |+---+ | | |
- * |1Kohm | +------+ | +----
- * |trim +----------+ |CVS
- * | +--+ +--+ +--+ +--+ +--+ J 7805CP | MON
- * | 74 74 74 74 74 2 +----
- * | 165 132 157 157 04 0 |
- * | +--+ +--+ +--+ +--+ +--+ 1 J 2 0 2 +----+ +----+ J401 |
- * | |
- * | +----+ +----+ +--+ +--+ +--+ +--+ +--+ U202 U201 J402 |
- * | CHAR VIDEO 74 74 74 74 74 4Mhz |
- * | ROM RAM 157 138 08 00 138 2764 2764 XTAL +----
- * | 2716 HM6116 +--+ +--+ +--+ +--+ +--+ +----+ +----+ +----+ |TAPE
- * | +----+ +----+ J +----+ +----+ optional |
- * | +--+ 2 +----+ +----+ +----+ +----+ +----+ +----+ +----+ +----+ CPU PIA2 PIA1 +----
- * | 74 0 6116 6116 6116 6116 6116 6116 6116 6116 +--+ |
- * | 8169 830415 245 3 opt opt opt opt 6802 6821 6821 LM +----
- * | ESSELTE 100 +--+ 339 |PRNT
- * | CPU 100 +----+ +----+ +----+ +----+ +----+ +----+ +----+ +----+ +--+ |
- * |___________________________________________________________________________________________________________+----+__+----+__+----+_____+----
- *
- * Both rev1 and rev2 has a matrix keyboard PCB with a 74LS145 connected to J402 (PIA2)
- */
-
-/* Esselte 100 driver class */
-class e100_state : public driver_device
-{
-public:
- e100_state(const machine_config &mconfig, device_type type, const char * tag)
- : driver_device(mconfig, type, tag)
- ,m_maincpu(*this, "maincpu")
- ,m_kbd_74145(*this, "kbd_74145")
- ,m_vram(*this, "vram")
- ,m_cassette(*this, "cassette")
- ,m_rs232(*this, "rs232")
- ,m_chargen(*this, "chargen")
- ,m_io_line0(*this, "LINE0")
- ,m_io_line1(*this, "LINE1")
- ,m_io_line2(*this, "LINE2")
- ,m_io_line3(*this, "LINE3")
- ,m_io_line4(*this, "LINE4")
- ,m_io_line5(*this, "LINE5")
- ,m_io_line6(*this, "LINE6")
- ,m_io_line7(*this, "LINE7")
- ,m_io_line8(*this, "LINE8")
- ,m_io_line9(*this, "LINE9")
- ,m_pia1(*this, PIA1_TAG)
- ,m_pia2(*this, PIA2_TAG)
- ,m_pia1_B(0)
- ,m_50hz(0)
- { }
-
- void e100(machine_config &config);
-
-private:
- required_device<m6802_cpu_device> m_maincpu;
- required_device<ttl74145_device> m_kbd_74145;
- required_shared_ptr<uint8_t> m_vram;
- required_device<cassette_image_device> m_cassette;
- optional_device<rs232_port_device> m_rs232;
- required_region_ptr<uint8_t> m_chargen;
- uint32_t screen_update(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect);
- virtual void machine_reset() override { m_maincpu->reset(); LOG("--->%s()\n", FUNCNAME); };
- virtual void machine_start() override;
- DECLARE_READ8_MEMBER( pia_r );
- DECLARE_WRITE8_MEMBER( pia_w );
- DECLARE_READ8_MEMBER( pia1_kbA_r );
- DECLARE_WRITE8_MEMBER( pia1_kbA_w );
- DECLARE_READ8_MEMBER( pia1_kbB_r );
- DECLARE_WRITE8_MEMBER( pia1_kbB_w );
- DECLARE_READ_LINE_MEMBER( pia1_ca1_r );
- DECLARE_READ_LINE_MEMBER( pia1_cb1_r );
- DECLARE_WRITE_LINE_MEMBER( pia1_ca2_w);
- DECLARE_WRITE_LINE_MEMBER( pia1_cb2_w);
- TIMER_DEVICE_CALLBACK_MEMBER(rtc_w);
- void e100_map(address_map &map);
-
- required_ioport m_io_line0;
- required_ioport m_io_line1;
- required_ioport m_io_line2;
- required_ioport m_io_line3;
- required_ioport m_io_line4;
- required_ioport m_io_line5;
- required_ioport m_io_line6;
- required_ioport m_io_line7;
- required_ioport m_io_line8;
- required_ioport m_io_line9;
- required_device<pia6821_device> m_pia1;
- required_device<pia6821_device> m_pia2;
- uint8_t m_pia1_B;
- uint8_t m_50hz;
-};
-
-TIMER_DEVICE_CALLBACK_MEMBER(e100_state::rtc_w)
-{
- m_pia2->ca1_w((m_50hz++ & 1));
-}
-
-void e100_state::machine_start()
-{
- LOG("%s()\n", FUNCNAME);
-
- /* register for state saving */
- save_item(NAME(m_50hz));
- save_item(NAME(m_pia1_B));
-}
-
-uint32_t e100_state::screen_update(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect)
-{
- int x, y;
- int vramad;
- uint8_t *chardata;
- uint8_t charcode;
-
- LOGSCREEN("%s()\n", FUNCNAME);
- vramad = 0;
- for (int row = 0; row < 32 * 8; row += 8)
- {
- for (int col = 0; col < 32 * 8; col += 8)
- {
- /* look up the character data */
- charcode = m_vram[vramad];
- if (VERBOSE && charcode != 0x20 && charcode != 0) LOGSCREEN("\n %c at X=%d Y=%d: ", charcode, col, row);
- chardata = &m_chargen[(charcode * 8)];
- /* plot the character */
- for (y = 0; y < 8; y++)
- {
- if (VERBOSE && charcode != 0x20 && charcode != 0) LOGSCREEN("\n %02x: ", *chardata);
- for (x = 0; x < 8; x++)
- {
- if (VERBOSE && charcode != 0x20 && charcode != 0) LOGSCREEN(" %02x: ", *chardata);
- bitmap.pix16(row + y, col + x) = (*chardata & (1 << x)) ? 1 : 0;
- }
- chardata++;
- }
- vramad++;
- }
- if (VERBOSE && charcode != 0x20 && charcode != 0) LOGSCREEN("\n");
- }
-
- return 0;
-}
-
-/* PIA write - the Esselte 100 allows the PIA:s to be accessed simultaneously */
-WRITE8_MEMBER( e100_state::pia_w )
-{
- LOG("%s(%02x)\n", FUNCNAME, data);
- if ((offset & 0x08) == 0x08)
- {
- LOG("- PIA1\n");
- m_pia1->write(offset, data);
- }
- if ((offset & 0x10) == 0x10)
- {
- LOG("- PIA2\n");
- m_pia2->write(offset, data);
- }
- if (VERBOSE && (offset & 0x18) == 0x18)
- {
- LOGCS("- Dual device write access!\n");
- }
- if (VERBOSE && (offset & 0x18) == 0x00)
- {
- logerror("- Funny write at offset %02x!\n", offset);
- }
-}
-
-/* PIA read - the Esselte 100 allows the PIA:s to be accessed simultaneously */
-READ8_MEMBER( e100_state::pia_r )
-{
- uint8_t data = 0;
-
- switch (offset & 0x18)
- {
- case 0x18: // read PIA1 and PIA2 at the same time, should really only happen for writes...
- {
- uint8_t data1 = m_pia1->read(offset);
- uint8_t data2 = m_pia2->read(offset);
- logerror("%s: Dual device read may have caused unpredictable results on real hardware\n", FUNCNAME);
- data = data1 & data2; // We assume that the stable behaviour is that data lines with a low level by either device succeeds
- LOGCS("%s %s[%02x] %02x & %02x -> %02x Dual device read!!\n", PIA1_TAG "/" PIA2_TAG, FUNCNAME, offset, data1, data2, data);
- }
- break;
- case 0x08: // PIA1
- data = m_pia1->read(offset);
- LOGCS("%s %s(%02x)\n", PIA1_TAG, FUNCNAME, data);
- break;
- case 0x10: // PIA2
- data = m_pia2->read(offset);
- LOGCS("%s %s(%02x)\n", PIA2_TAG, FUNCNAME, data);
- break;
- default: // None of the devices are selected
- logerror("%s: Funny read at offset %02x\n", FUNCNAME, offset);
- }
- return data;
-}
-
-WRITE8_MEMBER( e100_state::pia1_kbA_w )
-{
- LOG("%s(%02x)\n", FUNCNAME, data);
-}
-
-READ8_MEMBER( e100_state::pia1_kbA_r )
-{
- int ls145;
- uint8_t pa = 0x00;
-
- // Read out the selected column
- ls145 = m_kbd_74145->read() & 0x3ff;
-
- // read out the artwork
- switch (ls145)
- {
- case 0: pa = 0x00; break;
- case 1 << 0: pa = (~m_io_line0->read()) & 0xff; break;
- case 1 << 1: pa = (~m_io_line1->read()) & 0xff; break;
- case 1 << 2: pa = (~m_io_line2->read()) & 0xff; break;
- case 1 << 3: pa = (~m_io_line3->read()) & 0xff; break;
- case 1 << 4: pa = (~m_io_line4->read()) & 0xff; break;
- case 1 << 5: pa = (~m_io_line5->read()) & 0xff; break;
- case 1 << 6: pa = (~m_io_line6->read()) & 0xff; break;
- case 1 << 7: pa = (~m_io_line7->read()) & 0xff; break;
- case 1 << 8: pa = (~m_io_line8->read()) & 0xff; break;
- case 1 << 9: pa = (~m_io_line9->read()) & 0xff; break;
- default: logerror("Keyboard is misconfigured, please report!: %04x", ls145); break;
- }
- if (VERBOSE && ls145 && pa) LOGSCAN("%s [%03x]%04x\n", FUNCNAME, ls145, pa);
-
- return ~pa;
-}
-
-/*
- PB0-PB3 is connected to U601 (74LS145) which select a column to scan
- PB4-PB5 together with CA1, CA2, CB1 and CB2 are used for the printer interface
- PB6-PB7 forms the cassette interface
-
- The serial bitbanging performs unreliably atm, can be poor original code or inexact CPU timing.
- Best results is achieved with 8 bit at 9600 baud as follows:
-
- mame e100 -window -rs232 null_modem -bitbngr socket.127.0.0.1:4321
-
- Start the favourite Telnet client towards the 4321 port and exit the startup screen of MAME.
- At the "Esselte 100 #" prompt change to 8 bit communication and start the terminal mode:
-
- POKE (69,1)
- TERM(9600)
-
- It is now possible to send characters from the Esselte screen to the Telnet terminal. When a
- carriage return has been sent to the terminal the Esselte 100 goes into receiving mode until
- it receives a carriage return from the terminal at which point it will start sending again.
-
- TODO:
- - Fix key mapping of the Ctl-PI exit sequence to get out of the TERM mode.
- - Fix timing issues for the PIA bit banging, could be related to that the CPU emulation is not
- cycle exact or the ROM code is buggy
-*/
-
-#define SERIAL_OUT 0x10
-#define SERIAL_IN 0x20
-#define CASS_OUT 0x40
-#define CASS_IN 0x80
-WRITE8_MEMBER( e100_state::pia1_kbB_w )
-{
- uint8_t col;
-
- // Keyboard
- // if (VERBOSE && data != m_pia1_B) LOGSCAN("%s(%02x)\n", FUNCNAME, data);
- m_pia1_B = data;
- col = data & 0x0f;
- m_kbd_74145->write( col );
-
- // Cassette
- m_cassette->output(data & CASS_OUT ? 1.0 : -1.0);
-
- // Serial
- m_rs232->write_txd(data & SERIAL_OUT ? 0 : 1);
-}
-
-READ8_MEMBER( e100_state::pia1_kbB_r )
-{
- m_pia1_B &= ~(CASS_IN|SERIAL_IN);
-
- m_pia1_B |= (m_cassette->input() > 0.03 ? CASS_IN : 0x00);
-
- m_pia1_B |= (m_rs232->rxd_r() != 0 ? SERIAL_IN : 0x00);
-
- return m_pia1_B;
-}
-
-READ_LINE_MEMBER(e100_state::pia1_ca1_r)
-{
- // TODO: Make this a slot device for time meassurements
- return ASSERT_LINE; // Default is handshake for serial port TODO: Fix RS 232 handshake as default
-}
-
-READ_LINE_MEMBER(e100_state::pia1_cb1_r)
-{
- return m_rs232->rxd_r();
-}
-
-WRITE_LINE_MEMBER(e100_state::pia1_ca2_w)
-{
- // TODO: Make this a slot device to trigger time meassurements
-}
-
-WRITE_LINE_MEMBER(e100_state::pia1_cb2_w)
-{
- m_rs232->write_txd(!state);
-}
-
-// This map is derived from info in "TEMAL 100 - teknisk manual Esselte 100"
-void e100_state::e100_map(address_map &map)
-{
- map(0x0000, 0x1fff).ram();
- map(0x8000, 0x87ff).rom().region("roms", 0);
- map(0xc000, 0xc3ff).ram().share(m_vram);
- map(0xc800, 0xc81f).rw(FUNC(e100_state::pia_r), FUNC(e100_state::pia_w)).mirror(0x07e0);
- map(0xd000, 0xffff).rom().region("roms", 0x1000);
-}
-
-/* E100 Input ports
- * Four e100 keys are not mapped yet,
- * - The redundant '*' on the keyboard together with the '\'' single quote, both on same e100 key
- * - The 'E' key on the keypad, presumably used for calculator applications to remove the last entered number
- * - The 'Break' key on rev2 will be mapped to NMI at some point, a recomended modification of the rev1 mother board
- * - The 'REPT' key has a so far unknown function
- */
-static INPUT_PORTS_START( e100 )
-/* Bits read on PIA1 A when issueing line number on PIA1 B bits 0-3 through a 74145 demultiplexer */
- PORT_START("LINE0")
- PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_UNUSED)
- PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_UNUSED)
- PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_SPACE) PORT_CHAR(' ')
- PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_LSHIFT) PORT_CODE(KEYCODE_RSHIFT) PORT_CHAR(UCHAR_SHIFT_1)
- PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_LCONTROL) PORT_CHAR(UCHAR_SHIFT_2)
- PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("REPT") /* Not mapped yet */
- PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_UNUSED)
- PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_UNUSED)
-
- PORT_START("LINE1")
- PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_UNUSED)
- PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_UNUSED)
- PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_Z) PORT_CHAR('z') PORT_CHAR('Z')
- PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_A) PORT_CHAR('a') PORT_CHAR('A')
- PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_Q) PORT_CHAR('q') PORT_CHAR('Q')
- PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_1) PORT_CHAR('1') PORT_CHAR('!')
- PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_UNUSED)
- PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_UNUSED)
-
- PORT_START("LINE2")
- PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_PLUS_PAD) PORT_CHAR('+')
- PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_MINUS_PAD) PORT_CHAR('-')
- PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_X) PORT_CHAR('x') PORT_CHAR('X')
- PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_S) PORT_CHAR('s') PORT_CHAR('S')
- PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_W) PORT_CHAR('w') PORT_CHAR('W')
- PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_2) PORT_CHAR('2') PORT_CHAR('"')
- PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_SLASH_PAD) PORT_CHAR('/')
- PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_ASTERISK) PORT_CHAR('*')
-
- PORT_START("LINE3")
- PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_COLON) PORT_CHAR(0xF6) PORT_CHAR(0xD6)
- PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_UNUSED)
- PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_STOP) PORT_CHAR('.') PORT_CHAR(':')
- PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_L) PORT_CHAR('l') PORT_CHAR('L')
- PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_O) PORT_CHAR('o') PORT_CHAR('O')
- PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_9) PORT_CHAR(')') PORT_CHAR('9')
- PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_P) PORT_CHAR('p') PORT_CHAR('P')
- PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_0) PORT_CHAR('0') PORT_CHAR('=')
-
- PORT_START("LINE4")
- PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_QUOTE) PORT_CHAR(0xE4) PORT_CHAR(0xC4)
- PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_SLASH) PORT_CHAR('-') PORT_CHAR('_')
- PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_COMMA) PORT_CHAR(',') PORT_CHAR(';')
- PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_K) PORT_CHAR('k') PORT_CHAR('K')
- PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_I) PORT_CHAR('i') PORT_CHAR('I')
- PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_8) PORT_CHAR('8') PORT_CHAR('(')
- PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_OPENBRACE) PORT_CHAR(0xE5) PORT_CHAR(0xC5)
- PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_MINUS) PORT_CHAR('+') PORT_CHAR('?')
-
- PORT_START("LINE5")
- PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("'/*") /* No good mapping */
- PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_UNUSED)
- PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_M) PORT_CHAR('m') PORT_CHAR('M')
- PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_J) PORT_CHAR('j') PORT_CHAR('J')
- PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_U) PORT_CHAR('u') PORT_CHAR('U')
- PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_7) PORT_CHAR('7') PORT_CHAR('/')
- PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_CLOSEBRACE) PORT_CHAR('^')
- PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("PI") PORT_CODE(KEYCODE_ESC) PORT_CHAR(0x27)
-
- PORT_START("LINE6")
- PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_LEFT) PORT_CHAR(UCHAR_MAMEKEY(LEFT)) PORT_CHAR(UCHAR_MAMEKEY(UP))
- PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_RIGHT) PORT_CHAR(UCHAR_MAMEKEY(RIGHT)) PORT_CHAR(UCHAR_MAMEKEY(DOWN))
- PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_N) PORT_CHAR('n') PORT_CHAR('N')
- PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_H) PORT_CHAR('h') PORT_CHAR('H')
- PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_Y) PORT_CHAR('y') PORT_CHAR('Y')
- PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_6) PORT_CHAR('&') PORT_CHAR('6')
- PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_ENTER) PORT_CHAR('\r')
- PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_BACKSLASH2) PORT_CHAR('<') PORT_CHAR('>')
-
- PORT_START("LINE7")
- PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_1_PAD) PORT_CHAR(UCHAR_MAMEKEY(1_PAD))
- PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_0_PAD) PORT_CHAR(UCHAR_MAMEKEY(0_PAD))
- PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_B) PORT_CHAR('b') PORT_CHAR('B')
- PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_G) PORT_CHAR('g') PORT_CHAR('G')
- PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_T) PORT_CHAR('t') PORT_CHAR('T')
- PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_5) PORT_CHAR('5') PORT_CHAR('%')
- PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_4_PAD) PORT_CHAR(UCHAR_MAMEKEY(4_PAD))
- PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_7_PAD) PORT_CHAR(UCHAR_MAMEKEY(7_PAD))
-
- PORT_START("LINE8")
- PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_2_PAD) PORT_CHAR(UCHAR_MAMEKEY(3_PAD))
- PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_DEL_PAD) PORT_CHAR(UCHAR_MAMEKEY(STOP))
- PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_V) PORT_CHAR('v') PORT_CHAR('V')
- PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_F) PORT_CHAR('f') PORT_CHAR('F')
- PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_R) PORT_CHAR('r') PORT_CHAR('R')
- PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_4) PORT_CHAR('4') PORT_CHAR('$')
- PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_5_PAD) PORT_CHAR(UCHAR_MAMEKEY(5_PAD))
- PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_8_PAD) PORT_CHAR(UCHAR_MAMEKEY(8_PAD))
-
- PORT_START("LINE9")
- PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_3_PAD) PORT_CHAR(UCHAR_MAMEKEY(3_PAD))
- PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Keypad E") /* No good mapping */
- PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_C) PORT_CHAR('c') PORT_CHAR('C')
- PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_D) PORT_CHAR('d') PORT_CHAR('D')
- PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_E) PORT_CHAR('e') PORT_CHAR('E')
- PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_3) PORT_CHAR('3') PORT_CHAR('#')
- PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_6_PAD) PORT_CHAR(UCHAR_MAMEKEY(6_PAD))
- PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_9_PAD) PORT_CHAR(UCHAR_MAMEKEY(9_PAD))
-INPUT_PORTS_END
-
-void e100_state::e100(machine_config &config)
-{
- M6802(config, m_maincpu, XTAL(4'000'000));
- m_maincpu->set_ram_enable(false);
- m_maincpu->set_addrmap(AS_PROGRAM, &e100_state::e100_map);
-
- /* Devices */
- TTL74145(config, m_kbd_74145, 0);
-
- /* --PIA inits----------------------- */
- /* 0xF883 0xC818 (PIA1 DDR A) = 0x00 - Port A all inputs */
- /* 0xF883 0xC818 (PIA2 DDR A) = 0x00 - Port A all inputs */
- /* 0xF883 0xC818 (PIA1 Control A) = 0x00 - Channel A IRQ disabled */
- /* 0xF883 0xC818 (PIA2 Control A) = 0x00 - Channel A IRQ disabled */
- /* 0xF886 0xC81A (PIA1 DDR B) = 0x00 - Port B all inputs */
- /* 0xF886 0xC81A (PIA2 DDR B) = 0x00 - Port B all inputs */
- /* 0xF886 0xC81A (PIA1 Control B) = 0x00 - Channel B IRQ disabled */
- /* 0xF886 0xC81A (PIA2 Control B) = 0x00 - Channel B IRQ disabled */
- /* 0xF88e 0xC80A (PIA1 DDR B) = 0x4F - Port B 5 outputs set to 0 */
- /* 0xF890 0xC812 (PIA2 DDR B) = 0xFF - Port B all outputs set to 0 */
- /* 0xF894 0xC818 (PIA1 Control A) = 0x34 - CA2 is low and lock DDRA */
- /* 0xF894 0xC818 (PIA2 Control A) = 0x34 - CA2 is low and lock DDRA */
- /* 0xF896 0xC818 (PIA1 Control B) = 0x34 - CB2 is low and lock DDRB */
- /* 0xF896 0xC818 (PIA2 Control B) = 0x34 - CB2 is low and lock DDRB */
- PIA6821(config, m_pia1, 0);
- m_pia1->writepa_handler().set(FUNC(e100_state::pia1_kbA_w));
- m_pia1->readpa_handler().set(FUNC(e100_state::pia1_kbA_r));
- m_pia1->writepb_handler().set(FUNC(e100_state::pia1_kbB_w));
- m_pia1->readpb_handler().set(FUNC(e100_state::pia1_kbB_r));
- m_pia1->readca1_handler().set(FUNC(e100_state::pia1_ca1_r));
- m_pia1->readcb1_handler().set(FUNC(e100_state::pia1_cb1_r));
- m_pia1->ca2_handler().set(FUNC(e100_state::pia1_ca2_w));
- m_pia1->cb2_handler().set(FUNC(e100_state::pia1_cb2_w));
-
- /* The optional second PIA enables the expansion port on CA1 and a software RTC with 50Hz resolution */
- PIA6821(config, m_pia2, 0);
- m_pia2->irqa_handler().set_inputline("maincpu", M6800_IRQ_LINE);
-
- /* Serial port support */
- RS232_PORT(config, m_rs232, default_rs232_devices, nullptr);
-
- SPEAKER(config, "mono").front_center();
- /* Cassette support - E100 uses 300 baud Kansas City Standard with 1200/2400 Hz modulation */
- /* NOTE on usage: mame e100 -window -cass <wav file> -ui_active
- * Once running enable/disable internal UI by pressing Scroll Lock in case it interferes with target keys
- * Open the internal UI by pressing TAB and then select 'Tape Control' or use F2/Shift F2 for PLAY/PAUSE
- * In order to use a wav file it has first to be created using TAB and select the 'File manager'
- * Once created it may be given on the commandline or mounted via TAB and select
- * E100 supports cassette through the 'LOAD' and 'SAVE' commands with no arguments
- */
- CASSETTE(config, m_cassette);
- m_cassette->set_default_state(CASSETTE_STOPPED | CASSETTE_SPEAKER_ENABLED | CASSETTE_MOTOR_ENABLED);
- m_cassette->add_route(ALL_OUTPUTS, "mono", 0.05);
-
- /* screen TODO: simplify the screen config, look at zx.cpp */
- screen_device &screen(SCREEN(config, "screen", SCREEN_TYPE_RASTER));
- screen.set_raw(XTAL(4'000'000)/2, 265, 0, 265, 265, 0, 265);
- screen.set_screen_update(FUNC(e100_state::screen_update));
- screen.set_palette("palette");
- PALETTE(config, "palette", palette_device::MONOCHROME);
-
- /* There is a 50Hz signal from the video circuit to CA1 which generates interrupts and drives a software RTC */
- TIMER(config, "video50hz").configure_periodic(FUNC(e100_state::rtc_w), attotime::from_hz(100)); /* Will be divided by two through toggle in the handler */
-}
-
-/* ROM sets from Didact was not versioned in general, so the numbering are just assumptions */
-ROM_START( e100 )
- ROM_REGION(0x4000, "roms", 0)
- ROM_DEFAULT_BIOS("rev2-basic")
-
- /* TODO: Get the original ROMs */
- ROM_SYSTEM_BIOS(0, "rev1-basic", "Esselte 100 rev1 BASIC")
- ROMX_LOAD( "e100r1u201.bin", 0x1000, 0x0800, NO_DUMP, ROM_BIOS(0) )
- ROMX_LOAD( "e100r1u202.bin", 0x1800, 0x0800, NO_DUMP, ROM_BIOS(0) )
- ROMX_LOAD( "e100r1u203.bin", 0x2000, 0x0800, NO_DUMP, ROM_BIOS(0) )
- ROMX_LOAD( "e100r1u204.bin", 0x2800, 0x0800, NO_DUMP, ROM_BIOS(0) )
- ROMX_LOAD( "e100r1u205.bin", 0x3000, 0x0800, NO_DUMP, ROM_BIOS(0) )
- ROMX_LOAD( "e100r1u206.bin", 0x3800, 0x0800, NO_DUMP, ROM_BIOS(0) )
-
- /* This is a prototype ROM, commercial relase not verified. The prototype also have different keyboard and supports
- more ram so might need to be split out as a clone later */
- ROM_SYSTEM_BIOS(1, "rev2-basic", "Esselte 100 rev2 BASIC")
- ROMX_LOAD( "e100r2u201.bin", 0x0000, 0x2000, CRC(53513b67) SHA1(a91c5c32aead82dcc87db5d818ff286a7fc6a5c8), ROM_BIOS(1) )
- ROMX_LOAD( "e100r2u202.bin", 0x2000, 0x2000, CRC(eab3adf2) SHA1(ff3f5f5c8ea8732702a39cff76d0706ab6b751ee), ROM_BIOS(1) )
-
- ROM_REGION(0x0800, "chargen",0)
- ROM_LOAD( "e100u506.bin", 0x0000, 0x0800, CRC(fff9f288) SHA1(2dfb3eb551fe1ef67da328f61ef51ae8d1abdfb8) )
-ROM_END
-
-// YEAR NAME PARENT COMPAT MACHINE INPUT CLASS INIT COMPANY FULLNAME FLAGS
-COMP( 1982, e100, 0, 0, e100, e100, e100_state, empty_init, "Didact AB", "Esselte 100", MACHINE_NO_SOUND_HW | MACHINE_SUPPORTS_SAVE)