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Diffstat (limited to 'src/mame/drivers/itt3030.cpp')
-rw-r--r-- | src/mame/drivers/itt3030.cpp | 768 |
1 files changed, 0 insertions, 768 deletions
diff --git a/src/mame/drivers/itt3030.cpp b/src/mame/drivers/itt3030.cpp deleted file mode 100644 index 1908ed905ac..00000000000 --- a/src/mame/drivers/itt3030.cpp +++ /dev/null @@ -1,768 +0,0 @@ -// license:BSD-3-Clause -// copyright-holders:R. Belmont, Olivier Galibert -/*************************************************************************** - - ITT 3030 - - - ToDo: - - Check Beeper - - finish hooking up keyboard - - serial port - - daisy chain - - ... - - - CPU Board, all ICs shown: - - |-----------------------------------------------------------------| - | | - | 74LS640N Z80_Combo 74LS138N | - | 74LS00N | - | 74LS240N 74LS74AN | - | 74LS00N | - |C 74LS240N Z80_CPU 74LS240N C| - |N 74LS74AN N| - |1 74LS241N 74LS240N 2| - | ROM_1 74LS20N 74LS38N | - | 74LS240N 74LS240N | - | 74LS04N 74LS02N | - | 74LS138N 74LS74AN | - | 74LS175N | - | 75154N 74LS156N 74LS00N | - | 74LS123N | - | 75150P 75150P 74LS175N X1 74LS00N 74LS132N | - |-----------------------------------------------------------------| - - Z80_Combo: Mostek MK3886 Z80 Combo Chip, Serial, Timer, 256 bytes RAM, Interrupt Controller - Z80_CPU: Zilog Z80A CPU - ROM_1: NEC D2716D marked "BOOTV1.2" - X1: Crystal 4,194 MHz - CN1: Bus Connector - CN2: Memory Board Connector - ----------------------------------------------------------------------------------- - - Video / Keyboard Combination board, all ICs shown: - - |-----------------------------------------------------------------| - | | - | X1 74276N MCU_1 74LS85N | - | | - | 74LS138N 74LS240 74LS240N | - | 75LS257AN 74LS166AN | - | 74LS08N 74LS85N 74LS241N | - | 75LS257AN ROM_1 C| - | 74LS132N 74LS32N 74LS240N N| - | 75LS257AN 1| - | 74LS10N 74LS08N 74LS240N | - | 75LS257AN RAM_1 | - | 74LS163AN 74LS173AN 74LS374N | - | | - | 74LS86N 74LS240N 74LS640N | - | Video_1 | - | 74LS74AN 74LS240N 74LS640N | - |-----------------------------------------------------------------| - - X1: Crystal 6 MHz - MCU_1: NEC D8741AD marked "V1.1 3030" - ROM_1: MBM 2716 marked "GB 136-0" - RAM_1: NEC D4016D - Video_1 Video-IC SND5027E, compatible with TMS9927 - ----------------------------------------------------------------------------------- - - Floppy Controller board, all ICs shown - - |-----------------------------------------------------------------| - | | - | X1 74LS51N F 74LS74AN 74LS02N MC4044P | - | D 567 | - | 74LS04N C 74LS00N 74LS01N ::: MC4024P | - | | - | 74LS00N 1 74LS74AN 74LS74AN 74LS14N C| - | 7 N| - | 74LS240N 9 74LS161N 74LS393N 74LS74AN 1| - | 1 | - | 74LS132N 74LS14N 74LS14N 74LS374N | - | | - | 74LS123N 74LS04N 74LS163N 74LS14N 74LS241N | - | | - | 74LS393N 74LS138 74LS175N 74LS85N 74LS645N | - | | - |-----------------------------------------------------------------| - - X1: Crystal 8 MHz - FDC: Siemens SAB1791-02P - 567: Jumper Pad (emtpy) - ----------------------------------------------------------------------------------- - - 256K RAM board, all ICs shown: - - |-----------------------------------------------------------------| - | | - | HM4864P HM4864P HM4864P HM4864P 74LS245N | - | | - | HM4864P HM4864P HM4864P HM4864P P 74LS14N | - | R | - | HM4864P HM4864P HM4864P HM4864P M 74LS00N | - | C| - | HM4864P HM4864P HM4864P HM4864P AM A N| - | 29 M 1| - | HM4864P HM4864P HM4864P HM4864P 66 2 | - | PC 9 | - | HM4864P HM4864P HM4864P HM4864P 6 | - | AM 4 | - | HM4864P HM4864P HM4864P HM4864P 29 8 | - | 66 P | - | HM4864P HM4864P HM4864P HM4864P PC C | - | SN7474N | - |-----------------------------------------------------------------| - - PRM: N82S129F 1K Bipolar PROM - AM2966PC: Octal Dynamic Memory Drivers with Three-State Outputs - AM29648PC - CN1: Connector to CN2 of Z80 CPU card - ----------------------------------------------------------------------------------- - - Parallel I/O board, all ICs shown: - - |-------------------------------------| | - | | - | 74 74 | - | LS LS Z80A PIO | - | 00 14 | - | N N | - | | - | | - | 74 74 74 74 D4 74 | - | LS LS LS LS I3 LS | - | 13 14 24 85 P2 64 | - | 2N N 1N N 1 0N | - | | - | CN1 | - | | - | 74LS00N | - |-------------------------------------| - - CN1: Bus connector - DIP: 4x DIP current setting: off-on-on-off, sets the address for the parallel port - ----------------------------------------------------------------------------------- - -Beeper Circuit, all ICs shown: - - |---------------------------| | - | | - | BEEP 74LS132N | - | R1 | - | 74LS14N | - | | - | 74LS132N 74LS193N | - | | - | 74LS74AN 74LS165N | - | CN1 | - |---------------------------| - - CN1: Connector to mainboard - R1: looks like a potentiometer - BEEP: Beeper ... touted in the manual as "Hupe" ... i.e. "horn" :) - ----------------------------------------------------------------------------------- - - Other boards and extensions mentioned in the manual: - - S100 bus adapter board - - IEEE 488 bus adapter board - - 64K memory board - - 8086 CPU board - - external harddisk - - TV adapter B/W (TV, Save/Load from Audio Cassette) with PROM/RAM/BASIC-Module with 16K or 32K RAM - - TV adapter color with connection to Video / Keyboard combination card - - Monitor adapters B/W and color - - Video / Keyboard interface 2 with grayscale, 8 colors, loadable character set, blinking - - Graphics Adapter with 16 colours, hi-res 512x256 pixels - - RTC - - Arithmetics chip - -***************************************************************************/ - - -#include "emu.h" -#include "cpu/mcs48/mcs48.h" //Keyboard MCU ... talks to the 8278 on the keyboard circuit -#include "cpu/z80/z80.h" -#include "imagedev/floppy.h" -#include "machine/bankdev.h" -#include "machine/ram.h" -#include "machine/wd_fdc.h" -#include "sound/beep.h" -#include "video/tms9927.h" //Display hardware -#include "emupal.h" -#include "screen.h" -#include "speaker.h" -#include "formats/itt3030_dsk.h" -#include "debugger.h" - -#define MAIN_CLOCK XTAL_4.194MHz - -//************************************************************************** -// TYPE DEFINITIONS -//************************************************************************** - -class itt3030_state : public driver_device -{ -public: - itt3030_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_kbdmcu(*this, "kbdmcu") - , m_ram(*this, "mainram") - , m_crtc(*this, "crt5027") - , m_48kbank(*this, "lowerbank") - , m_fdc (*this, "fdc") - , m_floppy(*this, "fdc:%u", 0) - , m_beep(*this, "beeper") - , m_keyrows(*this, "ROW.%u", 0) - , m_vram(*this, "vram") - , m_gfxdecode(*this, "gfxdecode") - , m_palette(*this, "palette") - { } - - void itt3030(machine_config &config); - -protected: - // driver_device overrides - virtual void machine_start() override; - virtual void machine_reset() override; - -private: - // screen updates - uint32_t screen_update(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect); - - DECLARE_READ8_MEMBER(vsync_r); - DECLARE_WRITE8_MEMBER( beep_w ); - DECLARE_WRITE8_MEMBER(bank_w); - DECLARE_READ_LINE_MEMBER(kbd_matrix_r); - DECLARE_WRITE8_MEMBER(kbd_matrix_w); - DECLARE_READ8_MEMBER(kbd_port2_r); - DECLARE_WRITE8_MEMBER(kbd_port2_w); - DECLARE_READ8_MEMBER(fdc_r); - DECLARE_WRITE8_MEMBER(fdc_w); - DECLARE_READ8_MEMBER(fdc_stat_r); - DECLARE_WRITE8_MEMBER(fdc_cmd_w); - DECLARE_FLOPPY_FORMATS(itt3030_floppy_formats); - - DECLARE_WRITE_LINE_MEMBER(fdcirq_w); - DECLARE_WRITE_LINE_MEMBER(fdcdrq_w); - DECLARE_WRITE_LINE_MEMBER(fdchld_w); - void itt3030_palette(palette_device &palette) const; - - void itt3030_io(address_map &map); - void itt3030_map(address_map &map); - void lower48_map(address_map &map); - - // devices - required_device<cpu_device> m_maincpu; - required_device<screen_device> m_screen; - required_device<i8741a_device> m_kbdmcu; - required_device<ram_device> m_ram; - required_device<crt5027_device> m_crtc; - required_device<address_map_bank_device> m_48kbank; - required_device<fd1791_device> m_fdc; - required_device_array<floppy_connector, 3> m_floppy; - required_device<beep_device> m_beep; - - required_ioport_array<16> m_keyrows; - - // shared pointers - required_shared_ptr<uint8_t> m_vram; - - uint8_t m_kbdclk, m_kbdread, m_kbdport2; - required_device<gfxdecode_device> m_gfxdecode; - required_device<palette_device> m_palette; - floppy_image_device *m_curfloppy; - bool m_fdc_irq, m_fdc_drq, m_fdc_hld; -}; - -//************************************************************************** -// ADDRESS MAPS -//************************************************************************** - -// The lower 48K is switchable among the first 48K of each of 8 48K banks numbered 0-7 or "bank 8" which is the internal ROM and VRAM -// The upper 16K is always the top 16K of the first bank, F5 can set this to 32K -// Port F6 bits 7-5 select banks 0-7, bit 4 enables bank 8 - -void itt3030_state::itt3030_map(address_map &map) -{ - map(0x0000, 0xbfff).m(m_48kbank, FUNC(address_map_bank_device::amap8)); -} - -void itt3030_state::lower48_map(address_map &map) -{ - map(0x60000, 0x607ff).rom().region("maincpu", 0); // begin "page 8" - map(0x60800, 0x60fff).rom().region("maincpu", 0); - map(0x61000, 0x610ff).ram().mirror(0x100); // only 256 bytes, but ROM also clears 11xx? - map(0x63000, 0x63fff).ram().share("vram"); -} - -void itt3030_state::itt3030_io(address_map &map) -{ - map.global_mask(0xff); - map(0x20, 0x2f).rw(m_crtc, FUNC(crt5027_device::read), FUNC(crt5027_device::write)); - map(0x30, 0x31).rw(m_kbdmcu, FUNC(i8741a_device::upi41_master_r), FUNC(i8741a_device::upi41_master_w)); - map(0x32, 0x32).w(FUNC(itt3030_state::beep_w)); - map(0x35, 0x35).r(FUNC(itt3030_state::vsync_r)); - map(0x50, 0x53).rw(FUNC(itt3030_state::fdc_r), FUNC(itt3030_state::fdc_w)); - map(0x54, 0x54).rw(FUNC(itt3030_state::fdc_stat_r), FUNC(itt3030_state::fdc_cmd_w)); - map(0xf6, 0xf6).w(FUNC(itt3030_state::bank_w)); -} - - -//************************************************************************** -// INPUTS -//************************************************************************** - -READ_LINE_MEMBER(itt3030_state::kbd_matrix_r) -{ - return m_kbdread; -} - -WRITE8_MEMBER(itt3030_state::kbd_matrix_w) -{ -// printf("matrix_w: %02x (col %d row %d clk %d)\n", data, m_kbdcol, m_kbdrow, (data & 0x80) ? 1 : 0); - - if ((data & 0x80) && (!m_kbdclk)) - { - const ioport_value tmp_read = m_keyrows[(data >> 3) & 0xf]->read() & (1 << (data & 0x7)); - m_kbdread = (tmp_read != 0) ? 1 : 0; - } - - m_kbdclk = (data & 0x80) ? 1 : 0; -} - -// bit 2 is UPI-41 host IRQ to Z80 -WRITE8_MEMBER(itt3030_state::kbd_port2_w) -{ - m_kbdport2 = data; -} - -READ8_MEMBER(itt3030_state::kbd_port2_r) -{ - return m_kbdport2; -} - - -//************************************************************************** -// KEYBOARD -//************************************************************************** - -static INPUT_PORTS_START( itt3030 ) - PORT_START("ROW.0") - PORT_BIT(0x0001, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("F4") PORT_CODE(KEYCODE_F4) PORT_CHAR(UCHAR_MAMEKEY(F4)) - PORT_BIT(0x0002, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_5) PORT_CHAR('5') PORT_CHAR('%') - PORT_BIT(0x0004, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_T) PORT_CHAR('t') PORT_CHAR('T') - PORT_BIT(0x0008, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_F) PORT_CHAR('f') PORT_CHAR('F') - PORT_BIT(0x0010, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_V) PORT_CHAR('v') PORT_CHAR('V') - - PORT_START("ROW.1") - PORT_BIT(0x0001, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("F5") PORT_CODE(KEYCODE_F5) PORT_CHAR(UCHAR_MAMEKEY(F5)) - PORT_BIT(0x0002, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_6) PORT_CHAR('6') PORT_CHAR('&') - PORT_BIT(0x0004, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_Z) PORT_CHAR('z') PORT_CHAR('Z') - PORT_BIT(0x0008, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_G) PORT_CHAR('g') PORT_CHAR('G') - PORT_BIT(0x0010, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_B) PORT_CHAR('b') PORT_CHAR('B') - - PORT_START("ROW.2") - PORT_BIT(0x0001, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("F6") PORT_CODE(KEYCODE_F6) PORT_CHAR(UCHAR_MAMEKEY(F6)) - PORT_BIT(0x0002, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_7) PORT_CHAR('7') PORT_CHAR('/') - PORT_BIT(0x0004, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_U) PORT_CHAR('u') PORT_CHAR('U') - PORT_BIT(0x0008, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_H) PORT_CHAR('h') PORT_CHAR('H') - PORT_BIT(0x0010, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_N) PORT_CHAR('n') PORT_CHAR('N') - - PORT_START("ROW.3") - PORT_BIT(0x0001, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("F7") PORT_CODE(KEYCODE_F7) PORT_CHAR(UCHAR_MAMEKEY(F7)) - PORT_BIT(0x0002, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_8) PORT_CHAR('8') PORT_CHAR('(') - PORT_BIT(0x0004, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_I) PORT_CHAR('i') PORT_CHAR('I') - PORT_BIT(0x0008, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_J) PORT_CHAR('j') PORT_CHAR('J') - PORT_BIT(0x0010, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_M) PORT_CHAR('m') PORT_CHAR('M') - - PORT_START("ROW.4") - PORT_BIT(0x0001, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_LCONTROL) PORT_CODE(KEYCODE_RCONTROL) - PORT_BIT(0x0002, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_1) PORT_CHAR('1') PORT_CHAR('!') - PORT_BIT(0x0004, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_Q) PORT_CHAR('q') PORT_CHAR('Q') - PORT_BIT(0x0008, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("Shift Lock") PORT_CODE(KEYCODE_CAPSLOCK) - PORT_BIT(0x0010, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("Shift") PORT_CODE(KEYCODE_LSHIFT) PORT_CODE(KEYCODE_RSHIFT) PORT_CHAR(UCHAR_SHIFT_1) - - PORT_START("ROW.5") - PORT_BIT(0x0001, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("F1") PORT_CODE(KEYCODE_F1) PORT_CHAR(UCHAR_MAMEKEY(F1)) - PORT_BIT(0x0002, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_2) PORT_CHAR('2') PORT_CHAR('"') - PORT_BIT(0x0004, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_W) PORT_CHAR('w') PORT_CHAR('W') - PORT_BIT(0x0008, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_A) PORT_CHAR('a') PORT_CHAR('A') - PORT_BIT(0x0010, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_Y) PORT_CHAR('y') PORT_CHAR('Y') - - PORT_START("ROW.6") - PORT_BIT(0x0001, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("F2") PORT_CODE(KEYCODE_F2) PORT_CHAR(UCHAR_MAMEKEY(F2)) - PORT_BIT(0x0002, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_3) PORT_CHAR('3') PORT_CHAR('#') // actually UK pound symbol - PORT_BIT(0x0004, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_E) PORT_CHAR('e') PORT_CHAR('E') - PORT_BIT(0x0008, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_S) PORT_CHAR('s') PORT_CHAR('S') - PORT_BIT(0x0010, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_X) PORT_CHAR('x') PORT_CHAR('X') - - PORT_START("ROW.7") - PORT_BIT(0x0001, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("F3") PORT_CODE(KEYCODE_F3) PORT_CHAR(UCHAR_MAMEKEY(F3)) - PORT_BIT(0x0002, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_4) PORT_CHAR('4') PORT_CHAR('$') - PORT_BIT(0x0004, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_R) PORT_CHAR('r') PORT_CHAR('R') - PORT_BIT(0x0008, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_D) PORT_CHAR('d') PORT_CHAR('D') - PORT_BIT(0x0010, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_C) PORT_CHAR('c') PORT_CHAR('C') - - PORT_START("ROW.8") - PORT_BIT(0x0001, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("(R)") PORT_CODE(KEYCODE_F12) PORT_CHAR('=') - PORT_BIT(0x0002, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_BACKSLASH) PORT_CHAR('~') - PORT_BIT(0x0004, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_ENTER) PORT_CHAR(13) - PORT_BIT(0x0008, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_DEL) PORT_CHAR('^') // PC doesn't have 3 keys to the right of L, so we sub DEL for the 3rd one - PORT_BIT(0x0010, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_SPACE) PORT_CHAR(' ') - - PORT_START("ROW.9") - PORT_BIT(0x0001, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("(CL)") PORT_CODE(KEYCODE_F13) PORT_CHAR(4) // produces control-D always - PORT_BIT(0x001e, IP_ACTIVE_HIGH, IPT_UNUSED) - - PORT_START("ROW.10") - PORT_BIT(0x001f, IP_ACTIVE_HIGH, IPT_UNUSED) - - PORT_START("ROW.11") - PORT_BIT(0x001f, IP_ACTIVE_HIGH, IPT_UNUSED) - - PORT_START("ROW.12") - PORT_BIT(0x0001, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("F8") PORT_CODE(KEYCODE_F8) PORT_CHAR(UCHAR_MAMEKEY(F8)) - PORT_BIT(0x0002, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_9) PORT_CHAR('9') PORT_CHAR(')') - PORT_BIT(0x0004, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_O) PORT_CHAR('o') PORT_CHAR('O') - PORT_BIT(0x0008, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_K) PORT_CHAR('k') PORT_CHAR('K') - PORT_BIT(0x0010, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_COMMA) PORT_CHAR(',') PORT_CHAR(';') - - PORT_START("ROW.13") - PORT_BIT(0x0001, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME(UTF8_LEFT) PORT_CODE(KEYCODE_F9) - PORT_BIT(0x0002, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_0) PORT_CHAR('0') PORT_CHAR('=') - PORT_BIT(0x0004, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_P) PORT_CHAR('p') PORT_CHAR('P') - PORT_BIT(0x0008, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_L) PORT_CHAR('l') PORT_CHAR('L') - PORT_BIT(0x0010, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_STOP) PORT_CHAR('.') PORT_CHAR(':') - - PORT_START("ROW.14") - PORT_BIT(0x0001, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME(UTF8_RIGHT) PORT_CODE(KEYCODE_F10) - PORT_BIT(0x0002, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_MINUS) PORT_CHAR('@') PORT_CHAR('?') - PORT_BIT(0x0004, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_OPENBRACE) PORT_CHAR('<') PORT_CHAR('>') - PORT_BIT(0x0008, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_COLON) PORT_CHAR('[') PORT_CHAR('{') - PORT_BIT(0x0010, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_SLASH) PORT_CHAR('-') PORT_CHAR('`') - - PORT_START("ROW.15") - PORT_BIT(0x0001, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("Esc") PORT_CODE(KEYCODE_F11) PORT_CHAR(27) - PORT_BIT(0x0002, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_EQUALS) PORT_CHAR('/') PORT_CHAR('\\') - PORT_BIT(0x0004, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_CLOSEBRACE) PORT_CHAR('+') PORT_CHAR('*') - PORT_BIT(0x0008, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_QUOTE) PORT_CHAR(']') PORT_CHAR('}') - PORT_BIT(0x0010, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_RSHIFT) PORT_CHAR(UCHAR_MAMEKEY(RSHIFT)) -INPUT_PORTS_END - - -//************************************************************************** -// VIDEO -//************************************************************************** - -READ8_MEMBER(itt3030_state::vsync_r) -{ - uint8_t ret = 0; - - if (m_screen->vblank()) - { - ret |= 0xc0; // set both bits 6 and 7 if vblank - } - - if (m_screen->hblank()) - { - ret |= 0x80; // set only bit 7 if hblank - } - - return ret; -} - -WRITE8_MEMBER(itt3030_state::bank_w) -{ - int bank = 8; - - if (BIT(data, 4)) - { - bank = (BIT(data, 5) << 2) | (BIT(data, 6) << 1) | BIT(data, 7); - } - - // printf("bank_w: new value %02x, m_bank %x, bank %x\n", data, m_bank, bank); - - m_48kbank->set_bank(bank); -} - -uint32_t itt3030_state::screen_update( screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect) -{ - int start = m_crtc->upscroll_offset(); - for(int y = 0; y < 24; y++ ) - { - int vramy = (start + y) % 24; - for(int x = 0; x < 80; x++ ) - { - uint8_t code = m_vram[x + vramy*128]; - int invert = code & 0x80 ? 1 : 0; - code &= 0x7f; - m_gfxdecode->gfx(invert)->opaque(bitmap,cliprect, code , 0, 0,0, x*8,y*12); - } - } - - return 0; -} - -static const gfx_layout charlayout = -{ - 8, 16, /* 8x16 characters */ - 128, /* 128 characters */ - 1, /* 1 bits per pixel */ - {0}, /* no bitplanes; 1 bit per pixel */ - {7, 6, 5, 4, 3, 2, 1, 0}, - { 0*8, 1*8, 2*8, 3*8, 4*8, 5*8, 6*8, 7*8, - 8*8, 9*8, 10*8, 11*8, 12*8, 13*8, 14*8, 15*8 }, - 8*16 /* size of one char */ -}; - -static GFXDECODE_START( gfx_itt3030 ) - GFXDECODE_ENTRY( "gfx1", 0, charlayout, 0, 1 ) - GFXDECODE_ENTRY( "gfx1", 0, charlayout, 0, 1 ) -GFXDECODE_END - -void itt3030_state::itt3030_palette(palette_device &palette) const -{ - palette.set_pen_color(0, rgb_t::black()); - palette.set_pen_color(1, rgb_t(215, 229, 82)); - palette.set_pen_color(2, rgb_t::black()); -} - -//************************************************************************** -// SOUND -//************************************************************************** - -WRITE8_MEMBER( itt3030_state::beep_w ) -{ - m_beep->set_state(data&1); -} - -//************************************************************************** -// FLOPPY -//************************************************************************** - -WRITE_LINE_MEMBER(itt3030_state::fdcirq_w) -{ - m_fdc_irq = state; -} - - -WRITE_LINE_MEMBER(itt3030_state::fdcdrq_w) -{ - m_fdc_drq = state; -} - -WRITE_LINE_MEMBER(itt3030_state::fdchld_w) -{ - m_fdc_hld = state; -} - -/* - 7 Data Request (DRQ - inverted 1791-Signal) - 6 Interrupt Request (INTRQ - 1791-Signal) - 5 Head Load (HLD - inverted 1791-Signal) - 4 Ready 3 (Drive 3 ready) - 3 Ready 2 (Drive 2 ready) - 2 Ready l (Drive 1 ready) - 1 Write protect (the disk in the selected drive is write protected) - 0 HLT (Halt signal during head load and track change) -*/ -READ8_MEMBER(itt3030_state::fdc_stat_r) -{ - uint8_t res = 0; - floppy_image_device *floppy1 = m_floppy[0] ? m_floppy[0]->get_device() : nullptr; - floppy_image_device *floppy2 = m_floppy[1] ? m_floppy[1]->get_device() : nullptr; - floppy_image_device *floppy3 = m_floppy[2] ? m_floppy[2]->get_device() : nullptr; - - res = m_fdc_drq ? 0x80 : 0x00; - res |= m_fdc_irq ? 0x40 : 0x00; - res |= m_fdc_hld ? 0x00 : 0x20; - if (floppy3) res |= !floppy3->ready_r() ? 0x10 : 0; - if (floppy2) res |= !floppy2->ready_r() ? 0x08 : 0; - if (floppy1) res |= !floppy1->ready_r() ? 0x04 : 0; - if (m_curfloppy) res |= m_curfloppy->wpt_r() ? 0x02 : 0; - - return res; -} - -/* As far as we can tell, the mess of ttl de-inverts the bus */ -READ8_MEMBER(itt3030_state::fdc_r) -{ - return m_fdc->read(offset) ^ 0xff; -} - -WRITE8_MEMBER(itt3030_state::fdc_w) -{ - m_fdc->write(offset, data ^ 0xff); -} - -/* - 7 SEL1 - Select drive 1 - 6 SEL2 - Select drive 2 - 5 SEL3 - Select drive 3 - 4 MOTOR - Motor on - 3 DOOR - Drive door lock drives 1 + 2 (not possible with all drives) - 2 SIDESEL - Select disk side - 1 KOMP - write comp on/off - 0 RG J - Change separator stage to read -*/ -WRITE8_MEMBER(itt3030_state::fdc_cmd_w) -{ - floppy_image_device *floppy = nullptr; - - logerror("%02x to fdc_cmd_w: motor %d side %d\n", data, (data & 0x10)>>4, (data & 4)>>2); - - // select drive - if (data & 0x80) - { - floppy = m_floppy[0] ? m_floppy[0]->get_device() : nullptr; - } - else if (data & 0x40) - { - floppy = m_floppy[1] ? m_floppy[1]->get_device() : nullptr; - } - else if (data & 0x20) - { - floppy = m_floppy[2] ? m_floppy[2]->get_device() : nullptr; - } - - // selecting a new drive? - if (floppy != m_curfloppy) - { - m_fdc->set_floppy(floppy); - m_curfloppy = floppy; - } - - if (floppy != nullptr) - { - // side select - floppy->ss_w((data & 4) ? 1 : 0); - - // motor control (active low) - floppy->mon_w((data & 0x10) ? 0 : 1); - } -} - -//************************************************************************** -// FLOPPY - Drive definitions -//************************************************************************** - -FLOPPY_FORMATS_MEMBER( itt3030_state::itt3030_floppy_formats ) - FLOPPY_ITT3030_FORMAT -FLOPPY_FORMATS_END - - -static void itt3030_floppies(device_slot_interface &device) -{ - device.option_add("525dd", FLOPPY_525_DD); - device.option_add("525qd", FLOPPY_525_QD); -} - - - - -//************************************************************************** -// MACHINE -//************************************************************************** - -void itt3030_state::machine_start() -{ - save_item(NAME(m_kbdread)); - m_48kbank->space(AS_PROGRAM).install_ram(0, m_ram->size() - 16384, m_ram->pointer()); - m_maincpu->space(AS_PROGRAM).install_ram(0xc000, 0xffff, m_ram->pointer() + m_ram->size() - 16384); - m_gfxdecode->gfx(1)->set_colorbase(1); - - m_kbdclk = 0; // must be initialized here b/c mcs48_reset() causes write of 0xff to all ports -} - -void itt3030_state::machine_reset() -{ - m_48kbank->set_bank(8); - m_kbdread = 1; - m_kbdclk = 1; - m_fdc_irq = m_fdc_drq = m_fdc_hld = 0; - m_curfloppy = nullptr; -} - -void itt3030_state::itt3030(machine_config &config) -{ - /* basic machine hardware */ - Z80(config, m_maincpu, 4_MHz_XTAL); - m_maincpu->set_addrmap(AS_PROGRAM, &itt3030_state::itt3030_map); - m_maincpu->set_addrmap(AS_IO, &itt3030_state::itt3030_io); - - // Schematics + i8278 datasheet says: - // Port 1 goes to the keyboard matrix. - // bits 0-2 select bit to read back, bits 3-6 choose column to read from, bit 7 clocks the process (rising edge strobes the row, falling edge reads the data) - // T0 is the key matrix return - // pin 23 is the UPI-41 host IRQ line, it's unknown how it's connected to the Z80 - I8741A(config, m_kbdmcu, 6_MHz_XTAL); - m_kbdmcu->t0_in_cb().set(FUNC(itt3030_state::kbd_matrix_r)); - m_kbdmcu->p1_out_cb().set(FUNC(itt3030_state::kbd_matrix_w)); - m_kbdmcu->p2_in_cb().set(FUNC(itt3030_state::kbd_port2_r)); - m_kbdmcu->p2_out_cb().set(FUNC(itt3030_state::kbd_port2_w)); - - /* video hardware */ - SCREEN(config, m_screen, SCREEN_TYPE_RASTER); - m_screen->set_refresh_hz(60); - m_screen->set_vblank_time(ATTOSECONDS_IN_USEC(250)); - m_screen->set_screen_update(FUNC(itt3030_state::screen_update)); - m_screen->set_size(80*8, 24*12); - m_screen->set_visarea(0, 80*8-1, 0, 24*12-1); - m_screen->set_palette(m_palette); - - /* devices */ - ADDRESS_MAP_BANK(config, "lowerbank").set_map(&itt3030_state::lower48_map).set_options(ENDIANNESS_LITTLE, 8, 20, 0xc000); - - CRT5027(config, m_crtc, 6_MHz_XTAL / 8).set_char_width(8); - - FD1791(config, m_fdc, 20_MHz_XTAL / 20); - m_fdc->intrq_wr_callback().set(FUNC(itt3030_state::fdcirq_w)); - m_fdc->drq_wr_callback().set(FUNC(itt3030_state::fdcdrq_w)); - m_fdc->hld_wr_callback().set(FUNC(itt3030_state::fdchld_w)); - FLOPPY_CONNECTOR(config, "fdc:0", itt3030_floppies, "525qd", itt3030_state::itt3030_floppy_formats); - FLOPPY_CONNECTOR(config, "fdc:1", itt3030_floppies, "525qd", itt3030_state::itt3030_floppy_formats); - FLOPPY_CONNECTOR(config, "fdc:2", itt3030_floppies, "525qd", itt3030_state::itt3030_floppy_formats); - - GFXDECODE(config, m_gfxdecode, m_palette, gfx_itt3030); - - PALETTE(config, m_palette, FUNC(itt3030_state::itt3030_palette), 3); - - /* internal ram */ - RAM(config, "mainram").set_default_size("256K"); - - /* sound hardware */ - SPEAKER(config, "mono").front_center(); - BEEP(config, m_beep, 3250).add_route(ALL_OUTPUTS, "mono", 1.00); -} - - -//************************************************************************** -// ROM DEFINITIONS -//************************************************************************** - -ROM_START( itt3030 ) - ROM_REGION( 0x0800, "maincpu", ROMREGION_ERASE00 ) - ROM_LOAD( "bootv1.2.bin", 0x0000, 0x0800, CRC(90279d45) SHA1(a39a3f31f4f98980b1ef50805870837fbf72261d)) - ROM_REGION( 0x0800, "gfx1", ROMREGION_ERASE00 ) - ROM_LOAD( "gb136-0.bin", 0x0000, 0x0800, CRC(6a3895a8) SHA1(f3b977ffa2f54c346521c9ef034830de8f404621)) - ROM_REGION( 0x0400, "kbdmcu", ROMREGION_ERASE00 ) - ROM_LOAD( "8741ad.bin", 0x0000, 0x0400, CRC(cabf4394) SHA1(e5d1416b568efa32b578ca295a29b7b5d20c0def)) -ROM_END - -//************************************************************************** -// SYSTEM DRIVERS -//************************************************************************** - -COMP( 1982, itt3030, 0, 0, itt3030, itt3030, itt3030_state, empty_init, "ITT RFA", "ITT3030", MACHINE_NOT_WORKING | MACHINE_NO_SOUND ) |