diff options
Diffstat (limited to 'src/mame/drivers/bw2.cpp')
-rw-r--r-- | src/mame/drivers/bw2.cpp | 640 |
1 files changed, 0 insertions, 640 deletions
diff --git a/src/mame/drivers/bw2.cpp b/src/mame/drivers/bw2.cpp deleted file mode 100644 index 6386c510cb2..00000000000 --- a/src/mame/drivers/bw2.cpp +++ /dev/null @@ -1,640 +0,0 @@ -// license:BSD-3-Clause -// copyright-holders:Curt Coder -/*************************************************************************** - - drivers/bw2.c - - Bondwell BW 2 - - - Z80L CPU 4MHz - - 64KB RAM, expandable to 224KB RAM. - - 4KB System ROM - - MSM6255 LCD controller, 640x200 pixels - - 16KB Video RAM - - TMS2797 FDC controller - - 8251 USART serial interface - - 8253 PIT timer - - 8255 PPI - - http://www.thebattles.net/bondwell/ - - http://www.vintage-computer.com/bondwell2.shtml - - http://www2.okisemi.com/site/productscatalog/displaydrivers/availabledocuments/Intro-7090.html - -***************************************************************************/ - -#include "emu.h" -#include "includes/bw2.h" -#include "bus/rs232/rs232.h" -#include "screen.h" -#include "softlist.h" - - -//************************************************************************** -// MACROS / CONSTANTS -//************************************************************************** - -enum -{ - RAM1 = 0, - VRAM, - RAM2, - RAM3, - RAM4, - RAM5, - RAM6, - ROM -}; - -#define HAS_KB_OF_RAM(_kb) \ - (m_ram->size() >= (_kb * 1024)) - - -//************************************************************************** -// ADDRESS DECODING -//************************************************************************** - -//------------------------------------------------- -// read - -//------------------------------------------------- - -uint8_t bw2_state::read(offs_t offset) -{ - int rom = 1, vram = 1, ram1 = 1, ram2 = 1, ram3 = 1, ram4 = 1, ram5 = 1, ram6 = 1; - - uint8_t data = 0xff; - - switch (m_bank) - { - case RAM1: ram1 = 0; break; - case VRAM: vram = 0; break; - case RAM2: ram2 = 0; break; - case RAM3: ram3 = 0; break; - case RAM4: ram4 = 0; break; - case RAM5: ram5 = 0; break; - case RAM6: ram6 = 0; break; - case ROM: rom = 0; break; - } - - if (offset < 0x8000) - { - if (!rom) - data = m_rom->base()[offset & 0x3fff]; - - if (!vram) - data = m_video_ram[offset & 0x3fff]; - - if (!ram1) - data = m_ram->pointer()[offset]; - - if (!ram2 && HAS_KB_OF_RAM(96)) - data = m_ram->pointer()[0x10000 | offset]; - - if (!ram3 && HAS_KB_OF_RAM(128)) - data = m_ram->pointer()[0x18000 | offset]; - - if (!ram4 && HAS_KB_OF_RAM(160)) - data = m_ram->pointer()[0x20000 | offset]; - - if (!ram5 && HAS_KB_OF_RAM(192)) - data = m_ram->pointer()[0x28000 | offset]; - - if (!ram6 && HAS_KB_OF_RAM(224)) - data = m_ram->pointer()[0x30000 | offset]; - } - else - { - data = m_ram->pointer()[offset]; - } - - return m_exp->cd_r(offset, data, ram2, ram3, ram4, ram5, ram6); -} - - -//------------------------------------------------- -// write - -//------------------------------------------------- - -void bw2_state::write(offs_t offset, uint8_t data) -{ - int vram = 1, ram1 = 1, ram2 = 1, ram3 = 1, ram4 = 1, ram5 = 1, ram6 = 1; - - switch (m_bank) - { - case RAM1: ram1 = 0; break; - case VRAM: vram = 0; break; - case RAM2: ram2 = 0; break; - case RAM3: ram3 = 0; break; - case RAM4: ram4 = 0; break; - case RAM5: ram5 = 0; break; - case RAM6: ram6 = 0; break; - } - - if (offset < 0x8000) - { - if (!vram) - m_video_ram[offset & 0x3fff] = data; - - if (!ram1) - m_ram->pointer()[offset] = data; - - if (!ram2 && HAS_KB_OF_RAM(96)) - m_ram->pointer()[0x10000 | offset] = data; - - if (!ram3 && HAS_KB_OF_RAM(128)) - m_ram->pointer()[0x18000 | offset] = data; - - if (!ram4 && HAS_KB_OF_RAM(160)) - m_ram->pointer()[0x20000 | offset] = data; - - if (!ram5 && HAS_KB_OF_RAM(192)) - m_ram->pointer()[0x28000 | offset] = data; - - if (!ram6 && HAS_KB_OF_RAM(224)) - m_ram->pointer()[0x30000 | offset] = data; - } - else - { - m_ram->pointer()[offset] = data; - } - - m_exp->cd_w(offset, data, ram2, ram3, ram4, ram5, ram6); -} - - - -//************************************************************************** -// ADDRESS MAPS -//************************************************************************** - -//------------------------------------------------- -// ADDRESS_MAP( bw2_mem ) -//------------------------------------------------- - -void bw2_state::bw2_mem(address_map &map) -{ - map.unmap_value_high(); - map(0x0000, 0xffff).rw(FUNC(bw2_state::read), FUNC(bw2_state::write)); -} - - -//------------------------------------------------- -// ADDRESS_MAP( bw2_io ) -//------------------------------------------------- - -void bw2_state::bw2_io(address_map &map) -{ - map.unmap_value_high(); - map.global_mask(0xff); - map(0x00, 0x03).rw(I8255A_TAG, FUNC(i8255_device::read), FUNC(i8255_device::write)); - map(0x10, 0x13).rw(m_pit, FUNC(pit8253_device::read), FUNC(pit8253_device::write)); - map(0x20, 0x21).m(m_lcdc, FUNC(msm6255_device::map)); - map(0x30, 0x3f).rw(m_exp, FUNC(bw2_expansion_slot_device::slot_r), FUNC(bw2_expansion_slot_device::slot_w)); - map(0x40, 0x41).rw(m_uart, FUNC(i8251_device::read), FUNC(i8251_device::write)); - map(0x50, 0x50).w("cent_data_out", FUNC(output_latch_device::write)); - map(0x60, 0x63).rw(m_fdc, FUNC(wd2797_device::read), FUNC(wd2797_device::write)); - map(0x70, 0x7f).rw(m_exp, FUNC(bw2_expansion_slot_device::modsel_r), FUNC(bw2_expansion_slot_device::modsel_w)); -} - - -//------------------------------------------------- -// ADDRESS_MAP( lcdc_map ) -//------------------------------------------------- - -void bw2_state::lcdc_map(address_map &map) -{ - map.global_mask(0x3fff); - map(0x0000, 0x3fff).ram().share("videoram"); -} - - - -//************************************************************************** -// INPUT PORTS -//************************************************************************** - -//------------------------------------------------- -// INPUT_PORTS( bw2 ) -//------------------------------------------------- - -/* - Keyboard matrix - X0 X1 X2 X3 X4 X5 X6 X7 - +-----+-----+-----+-----+-----+-----+-----+-----+ - Y9 |CAPS | | | | | | | | - +-----+-----+-----+-----+-----+-----+-----+-----+ - Y8 |SHIFT| |SPACE| Z | A | Q | 2 " | F1 | - +-----+-----+-----+-----+-----+-----+-----+-----+ - Y7 |CTRL | - = | \ | | X | S | W | 3 # | F2 | - +-----+-----+-----+-----+-----+-----+-----+-----+ - Y6 | @ ` | P | UP | C | D | E | 4 $ | F3 | - +-----+-----+-----+-----+-----+-----+-----+-----+ - Y5 | 1 ! | | | V | F | R | 5 % | F4 | - +-----+-----+-----+-----+-----+-----+-----+-----+ - Y4 | ESC | | | B | G | T | 6 & | F5 | - +-----+-----+-----+-----+-----+-----+-----+-----+ - Y3 | TAB | : * |ENTER| N | H | Y | 7 ' | F6 | - +-----+-----+-----+-----+-----+-----+-----+-----+ - Y2 |DOWN | ^ ~ | [ { | M | J | U | 8 ( | F7 | - +-----+-----+-----+-----+-----+-----+-----+-----+ - Y1 |RIGHT| ; + | ] } | , < | K | I | 9 ) | F8 | - +-----+-----+-----+-----+-----+-----+-----+-----+ - Y0 |LEFT | BS | / ? | . > | L | O | 0 _ | DEL | - +-----+-----+-----+-----+-----+-----+-----+-----+ -*/ - -static INPUT_PORTS_START( bw2 ) - PORT_START("Y0") - PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_LEFT) PORT_CHAR(UCHAR_MAMEKEY(LEFT)) - PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_BACKSPACE) PORT_CHAR(8) - PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_SLASH) PORT_CHAR('/') PORT_CHAR('?') - PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_STOP) PORT_CHAR('.') PORT_CHAR('>') - PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_L) PORT_CHAR('l') PORT_CHAR('L') - PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_O) PORT_CHAR('o') PORT_CHAR('O') - PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_0) PORT_CHAR('0') PORT_CHAR('_') - PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_DEL) PORT_CHAR(UCHAR_MAMEKEY(DEL)) - - PORT_START("Y1") - PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_RIGHT) PORT_CHAR(UCHAR_MAMEKEY(RIGHT)) - PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_COLON) PORT_CHAR(';') PORT_CHAR('+') - PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_CLOSEBRACE) PORT_CHAR(']') PORT_CHAR('}') - PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_COMMA) PORT_CHAR(',') PORT_CHAR('<') - PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_K) PORT_CHAR('k') PORT_CHAR('K') - PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_I) PORT_CHAR('i') PORT_CHAR('I') - PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_9) PORT_CHAR('9') PORT_CHAR(')') - PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_F8) PORT_CHAR(UCHAR_MAMEKEY(F8)) - - PORT_START("Y2") - PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_DOWN) PORT_CHAR(UCHAR_MAMEKEY(DOWN)) - PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_TILDE) PORT_CHAR('^') PORT_CHAR('~') - PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_OPENBRACE) PORT_CHAR('[') PORT_CHAR('{') - PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_M) PORT_CHAR('m') PORT_CHAR('M') - PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_J) PORT_CHAR('j') PORT_CHAR('J') - PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_U) PORT_CHAR('u') PORT_CHAR('U') - PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_8) PORT_CHAR('8') PORT_CHAR('(') - PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_F7) PORT_CHAR(UCHAR_MAMEKEY(F7)) - - PORT_START("Y3") - PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_TAB) PORT_CHAR(UCHAR_MAMEKEY(TAB)) - PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_EQUALS) PORT_CHAR(':') PORT_CHAR('*') - PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_ENTER) PORT_CHAR(13) - PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_N) PORT_CHAR('n') PORT_CHAR('N') - PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_H) PORT_CHAR('h') PORT_CHAR('H') - PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_Y) PORT_CHAR('y') PORT_CHAR('Y') - PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_7) PORT_CHAR('7') PORT_CHAR('\'') - PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_F6) PORT_CHAR(UCHAR_MAMEKEY(F6)) - - PORT_START("Y4") - PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_ESC) PORT_CHAR(27) - PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_UNUSED) - PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_UNUSED) - PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_B) PORT_CHAR('b') PORT_CHAR('B') - PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_G) PORT_CHAR('g') PORT_CHAR('G') - PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_T) PORT_CHAR('t') PORT_CHAR('T') - PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_6) PORT_CHAR('6') PORT_CHAR('&') - PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_F5) PORT_CHAR(UCHAR_MAMEKEY(F5)) - - PORT_START("Y5") - PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_1) PORT_CHAR('1') PORT_CHAR('!') - PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_UNUSED) - PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_UNUSED) - PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_V) PORT_CHAR('v') PORT_CHAR('V') - PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_F) PORT_CHAR('f') PORT_CHAR('F') - PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_R) PORT_CHAR('r') PORT_CHAR('R') - PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_5) PORT_CHAR('5') PORT_CHAR('%') - PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_F4) PORT_CHAR(UCHAR_MAMEKEY(F4)) - - PORT_START("Y6") - PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_QUOTE) PORT_CHAR('@') PORT_CHAR('`') - PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_P) PORT_CHAR('p') PORT_CHAR('P') - PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_UP) PORT_CHAR(UCHAR_MAMEKEY(UP)) - PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_C) PORT_CHAR('c') PORT_CHAR('C') PORT_CHAR(3) - PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_D) PORT_CHAR('d') PORT_CHAR('D') - PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_E) PORT_CHAR('e') PORT_CHAR('E') - PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_4) PORT_CHAR('4') PORT_CHAR('$') - PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_F3) PORT_CHAR(UCHAR_MAMEKEY(F3)) - - PORT_START("Y7") - PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_LCONTROL) PORT_CHAR(UCHAR_SHIFT_2) - PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_MINUS) PORT_CHAR('-') PORT_CHAR('=') - PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_BACKSLASH) PORT_CHAR('\\') PORT_CHAR('|') - PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_X) PORT_CHAR('x') PORT_CHAR('X') - PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_S) PORT_CHAR('s') PORT_CHAR('S') - PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_W) PORT_CHAR('w') PORT_CHAR('W') - PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_3) PORT_CHAR('3') PORT_CHAR('#') - PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_F2) PORT_CHAR(UCHAR_MAMEKEY(F2)) - - PORT_START("Y8") - PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_LSHIFT) PORT_CODE(KEYCODE_RSHIFT) PORT_CHAR(UCHAR_SHIFT_1) - 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_Z) PORT_CHAR('z') PORT_CHAR('Z') - PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_A) PORT_CHAR('a') PORT_CHAR('A') - PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_Q) PORT_CHAR('q') PORT_CHAR('Q') - PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_2) PORT_CHAR('2') PORT_CHAR('"') - PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_F1) PORT_CHAR(UCHAR_MAMEKEY(F1)) - - PORT_START("Y9") - PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_CAPSLOCK) PORT_CHAR(UCHAR_MAMEKEY(CAPSLOCK)) - PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_UNUSED) - PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_UNUSED) - PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_UNUSED) - PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_UNUSED) - PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_UNUSED) - PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_UNUSED) - PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_UNUSED) - - PORT_START("BAUD") - PORT_CONFNAME( 0x05, 0x05, "Baud rate") - PORT_CONFSETTING( 0x00, "9600 baud" ) - PORT_CONFSETTING( 0x01, "4800 baud" ) - PORT_CONFSETTING( 0x02, "2400 baud" ) - PORT_CONFSETTING( 0x03, "1200 baud" ) - PORT_CONFSETTING( 0x04, "600 baud" ) - PORT_CONFSETTING( 0x05, "300 baud" ) -INPUT_PORTS_END - - - -//************************************************************************** -// DEVICE CONFIGURATION -//************************************************************************** - -WRITE_LINE_MEMBER( bw2_state::write_centronics_busy ) -{ - m_centronics_busy = state; -} - -//------------------------------------------------- -// I8255A interface -//------------------------------------------------- - -void bw2_state::ppi_pa_w(uint8_t data) -{ - /* - - PA0 KB0 Keyboard line select 0 - PA1 KB1 Keyboard line select 1 - PA2 KB2 Keyboard line select 2 - PA3 KB3 Keyboard line select 3 - PA4 /DS0 Drive select 0 - PA5 /DS1 Drive select 1 - PA6 Select RS232 connector - PA7 /STROBE to centronics printer - - */ - - // keyboard - m_kb = data & 0x0f; - - // drive select - m_floppy = nullptr; - if (BIT(data, 4)) m_floppy = m_floppy0->get_device(); - if (BIT(data, 5)) m_floppy = m_floppy1->get_device(); - - m_fdc->set_floppy(m_floppy); - if (m_floppy) m_floppy->mon_w(m_mtron); - - // centronics strobe - m_centronics->write_strobe(BIT(data, 7)); -} - -uint8_t bw2_state::ppi_pb_r() -{ - /* - - PB0 Keyboard column status of selected line - PB1 Keyboard column status of selected line - PB2 Keyboard column status of selected line - PB3 Keyboard column status of selected line - PB4 Keyboard column status of selected line - PB5 Keyboard column status of selected line - PB6 Keyboard column status of selected line - PB7 Keyboard column status of selected line - - */ - - uint8_t data = 0xff; - - if (m_kb < 10) - { - data = m_y[m_kb]->read(); - } - - return data; -} - -void bw2_state::ppi_pc_w(uint8_t data) -{ - /* - - PC0 Memory bank select - PC1 Memory bank select - PC2 Memory bank select - PC3 Not connected - - */ - - m_bank = data & 0x07; -} - -uint8_t bw2_state::ppi_pc_r() -{ - /* - - PC4 BUSY from centronics printer - PC5 M/FDBK motor feedback - PC6 RLSD Carrier detect from RS232 - PC7 /PROT Write protected disk - - */ - - uint8_t data = m_bank; - - // centronics busy - data |= m_centronics_busy << 4; - - // floppy motor - data |= m_mfdbk << 5; - - // write protect - if (m_floppy) data |= !m_floppy->wpt_r() << 7; - - return data; -} - -//------------------------------------------------- -// pit8253_config pit_intf -//------------------------------------------------- - -WRITE_LINE_MEMBER( bw2_state::mtron_w ) -{ - m_mtron = state; - m_mfdbk = !state; - - if (m_floppy) m_floppy->mon_w(m_mtron); -} - -//------------------------------------------------- -// floppy_format_type floppy_formats -//------------------------------------------------- - -WRITE_LINE_MEMBER( bw2_state::fdc_drq_w ) -{ - if (state) - { - if (m_maincpu->state_int(Z80_HALT)) - { - m_maincpu->set_input_line(INPUT_LINE_NMI, HOLD_LINE); - } - } - else - { - m_maincpu->set_input_line(INPUT_LINE_NMI, CLEAR_LINE); - } -} - -void bw2_state::floppy_formats(format_registration &fr) -{ - fr.add_mfm_containers(); - fr.add(FLOPPY_BW2_FORMAT); -} - -static void bw2_floppies(device_slot_interface &device) -{ - device.option_add("35dd", FLOPPY_35_DD); // Teac FD-35 -} - - - -//************************************************************************** -// MACHINE INITIALIZATION -//************************************************************************** - - -void bw2_state::bw2_palette(palette_device &palette) const -{ - palette.set_pen_color(0, 0xa5, 0xad, 0xa5); - palette.set_pen_color(1, 0x31, 0x39, 0x10); -} - - -//------------------------------------------------- -// MACHINE_START( bw2 ) -//------------------------------------------------- - -void bw2_state::machine_start() -{ - // register for state saving - save_item(NAME(m_kb)); - save_item(NAME(m_bank)); - save_item(NAME(m_mtron)); - save_item(NAME(m_mfdbk)); - save_item(NAME(m_centronics_busy)); -} - - - -//************************************************************************** -// MACHINE DRIVERS -//************************************************************************** - -//------------------------------------------------- -// machine_config( bw2 ) -//------------------------------------------------- - -void bw2_state::bw2(machine_config &config) -{ - // basic machine hardware - Z80(config, m_maincpu, 16_MHz_XTAL / 4); - m_maincpu->set_addrmap(AS_PROGRAM, &bw2_state::bw2_mem); - m_maincpu->set_addrmap(AS_IO, &bw2_state::bw2_io); - - // video hardware - screen_device &screen(SCREEN(config, SCREEN_TAG, SCREEN_TYPE_LCD)); - screen.set_refresh_hz(60); - screen.set_screen_update(MSM6255_TAG, FUNC(msm6255_device::screen_update)); - screen.set_size(640, 200); - screen.set_visarea(0, 640-1, 0, 200-1); - screen.set_palette("palette"); - - PALETTE(config, "palette", FUNC(bw2_state::bw2_palette), 2); - - // devices - PIT8253(config, m_pit, 0); - m_pit->set_clk<0>(16_MHz_XTAL / 4); // 8251 USART TXC, RXC - m_pit->out_handler<0>().set(m_uart, FUNC(i8251_device::write_txc)); - m_pit->out_handler<0>().append(m_uart, FUNC(i8251_device::write_rxc)); - m_pit->set_clk<1>(11000); // LCD controller - m_pit->out_handler<1>().set(m_pit, FUNC(pit8253_device::write_clk2)); - m_pit->set_clk<2>(0); // Floppy /MTRON - m_pit->out_handler<2>().set(FUNC(bw2_state::mtron_w)); - - i8255_device &ppi(I8255A(config, I8255A_TAG)); - ppi.out_pa_callback().set(FUNC(bw2_state::ppi_pa_w)); - ppi.in_pb_callback().set(FUNC(bw2_state::ppi_pb_r)); - ppi.in_pc_callback().set(FUNC(bw2_state::ppi_pc_r)); - ppi.out_pc_callback().set(FUNC(bw2_state::ppi_pc_w)); - - MSM6255(config, m_lcdc, 16_MHz_XTAL); - m_lcdc->set_addrmap(0, &bw2_state::lcdc_map); - m_lcdc->set_screen(SCREEN_TAG); - - CENTRONICS(config, m_centronics, centronics_devices, "printer"); - m_centronics->busy_handler().set(FUNC(bw2_state::write_centronics_busy)); - - output_latch_device &latch(OUTPUT_LATCH(config, "cent_data_out")); - m_centronics->set_output_latch(latch); - - I8251(config, m_uart, 0); - m_uart->txd_handler().set(RS232_TAG, FUNC(rs232_port_device::write_txd)); - m_uart->dtr_handler().set(RS232_TAG, FUNC(rs232_port_device::write_dtr)); - m_uart->rts_handler().set(RS232_TAG, FUNC(rs232_port_device::write_rts)); - - rs232_port_device &rs232(RS232_PORT(config, RS232_TAG, default_rs232_devices, nullptr)); - rs232.rxd_handler().set(m_uart, FUNC(i8251_device::write_rxd)); - rs232.dsr_handler().set(m_uart, FUNC(i8251_device::write_dsr)); - - WD2797(config, m_fdc, 16_MHz_XTAL / 16); - m_fdc->intrq_wr_callback().set_inputline(m_maincpu, INPUT_LINE_IRQ0); - m_fdc->drq_wr_callback().set(FUNC(bw2_state::fdc_drq_w)); - - FLOPPY_CONNECTOR(config, WD2797_TAG":0", bw2_floppies, "35dd", bw2_state::floppy_formats); - FLOPPY_CONNECTOR(config, WD2797_TAG":1", bw2_floppies, nullptr, bw2_state::floppy_formats); - BW2_EXPANSION_SLOT(config, m_exp, 16_MHz_XTAL, bw2_expansion_cards, nullptr); - - // software list - SOFTWARE_LIST(config, "flop_list").set_original("bw2"); - - // internal ram - RAM(config, RAM_TAG).set_default_size("64K").set_extra_options("96K,128K,160K,192K,224K"); -} - - - -//************************************************************************** -// ROMS -//************************************************************************** - -//------------------------------------------------- -// ROM( bw2 ) -//------------------------------------------------- - -ROM_START( bw2 ) - ROM_REGION( 0x1000, Z80_TAG, 0 ) - ROM_DEFAULT_BIOS( "v20" ) - ROM_SYSTEM_BIOS( 0, "v12", "BW 2 v1.2" ) - ROMX_LOAD( "bw2-12.ic8", 0x0000, 0x1000, CRC(0ab42d10) SHA1(430b232631eee9b715151b8d191b7eb9449ac513), ROM_BIOS(0) ) - ROM_SYSTEM_BIOS( 1, "v20", "BW 2 v2.0" ) - ROMX_LOAD( "bw2-20.ic8", 0x0000, 0x1000, CRC(86f36471) SHA1(a3e2ba4edd50ff8424bb0675bdbb3b9f13c04c9d), ROM_BIOS(1) ) -ROM_END - - - -//************************************************************************** -// SYSTEM DRIVERS -//************************************************************************** - -// YEAR NAME PARENT COMPAT MACHINE INPUT CLASS INIT COMPANY FULLNAME FLAGS -COMP( 1985, bw2, 0, 0, bw2, bw2, bw2_state, empty_init, "Bondwell Holding", "Bondwell Model 2", MACHINE_NO_SOUND_HW ) |