// license:BSD-3-Clause // copyright-holders:Curt Coder /*************************************************************************** Bondwell 12/14 12/05/2009 Skeleton driver. - Z80A CPU 4MHz - 64KB RAM (BW 12), 128KB RAM (BW 14) - 4KB ROM System - UPD765A Floppy controller - 2 x 5.25" Floppy drives 48 tpi SSDD (BW 12), DSDD (BW 14) - MC6845 Video controller - 2KB RAM Video buffer - 4KB ROM Character set - Z80SIO Serial interface - MC6821 Parallel interface - I8253 Counter-timer - MC1408 8-bit DAC sound - KB3600 PRO (AY-5-3600 PRO) Keyboard controller http://www.eld.leidenuniv.nl/~moene/Home/sitemap/ http://www.baltissen.org/newhtm/schemas.htm ****************************************************************************/ #include "emu.h" #include "includes/bw12.h" #include "bus/rs232/rs232.h" #include "sound/dac.h" #include "sound/volt_reg.h" #include "screen.h" #include "softlist.h" #include "speaker.h" /* TODO: - floppy motor off timer */ void bw12_state::bankswitch() { address_space &program = m_maincpu->space(AS_PROGRAM); switch (m_bank) { case 0: /* ROM */ program.install_read_bank(0x0000, 0x7fff, "bank1"); program.unmap_write(0x0000, 0x7fff); break; case 1: /* BK0 */ program.install_readwrite_bank(0x0000, 0x7fff, "bank1"); break; case 2: /* BK1 */ case 3: /* BK2 */ if (m_ram->size() > 64*1024) { program.install_readwrite_bank(0x0000, 0x7fff, "bank1"); } else { program.unmap_readwrite(0x0000, 0x7fff); } break; } membank("bank1")->set_entry(m_bank); } void bw12_state::floppy_motor_on_off() { if (m_motor0 || m_motor1) { m_motor_on = 1; m_floppy0->mon_w(0); m_floppy1->mon_w(0); m_floppy_timer->adjust(attotime::never); } else m_floppy_timer->adjust(attotime::from_msec(170)); } TIMER_DEVICE_CALLBACK_MEMBER(bw12_state::floppy_motor_off_tick) { if (m_motor0 || m_motor1) return; m_floppy0->mon_w(1); m_floppy1->mon_w(1); m_motor_on = 0; } WRITE_LINE_MEMBER(bw12_state::ls138_a0_w) { m_bank = (m_bank & 0x02) | state; bankswitch(); } WRITE_LINE_MEMBER(bw12_state::ls138_a1_w) { m_bank = (state << 1) | (m_bank & 0x01); bankswitch(); } WRITE_LINE_MEMBER(bw12_state::init_w) { } WRITE_LINE_MEMBER(bw12_state::motor0_w) { m_motor0 = state; floppy_motor_on_off(); } WRITE_LINE_MEMBER(bw12_state::motor1_w) { m_motor1 = state; floppy_motor_on_off(); } uint8_t bw12_state::ls259_r(offs_t offset) { if (!machine().side_effects_disabled()) m_latch->write_bit(offset >> 1, BIT(offset, 0)); return 0; } /* Memory Maps */ void bw12_state::bw12_mem(address_map &map) { map(0x0000, 0x7fff).bankrw("bank1"); map(0x8000, 0xf7ff).ram(); map(0xf800, 0xffff).ram().share("video_ram"); } void bw12_state::bw12_io(address_map &map) { map.global_mask(0xff); map(0x00, 0x0f).r(FUNC(bw12_state::ls259_r)).w(m_latch, FUNC(ls259_device::write_a0)); map(0x10, 0x10).mirror(0x0e).w(m_crtc, FUNC(mc6845_device::address_w)); map(0x11, 0x11).mirror(0x0e).rw(m_crtc, FUNC(mc6845_device::register_r), FUNC(mc6845_device::register_w)); map(0x20, 0x21).mirror(0x0e).m(m_fdc, FUNC(upd765a_device::map)); map(0x30, 0x33).mirror(0x0c).rw(m_pia, FUNC(pia6821_device::read), FUNC(pia6821_device::write)); map(0x40, 0x43).mirror(0x0c).rw(m_sio, FUNC(z80sio_device::ba_cd_r), FUNC(z80sio_device::ba_cd_w)); map(0x50, 0x50).mirror(0x0f).w("dac", FUNC(dac_byte_interface::data_w)); map(0x60, 0x63).mirror(0x0c).rw(m_pit, FUNC(pit8253_device::read), FUNC(pit8253_device::write)); } /* Input Ports */ static INPUT_PORTS_START( bw12 ) /* KB3600 PRO2 Keyboard matrix | Y0 | Y1 | Y2 | Y3 | Y4 | Y5 | Y6 | Y7 | Y8 | Y9 | | | | | | | | | | | | ----+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----| X0 | 7 | 8 | 9 | 0 | 1 | 2 | 3 | 4 | 5 | 6 | ----+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----| X1 | U | I | O | P | Q | W | E | R | T | Y | ----+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----| X2 | F15 | F16 | RET | N. | SP | LOCK| F11 | F12 | F13 | F14 | ----+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----| X3 | F7 | F8 | F9 | F10 | F1 | F2 | F3 | F4 | F5 | F6 | ----+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----| X4 | LEFT|RIGHT| N3 | BS | @ | | - | ] | UP | DOWN| ----+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----| X5 | N9 | CL | N2 | LF | DEL | HT |ARROW| [ | N7 | N8 | ----+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----| X6 | M | , | . | / | Z | X | C | V | B | N | ----+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----| X7 | J | K | L | ; | A | S | D | F | G | H | ----+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----| X8 | N6 | - | N1 | N0 | ESC | | : | NRET| N4 | N5 | ----+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----| */ PORT_START("X0") PORT_BIT( 0x001, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_7) PORT_CHAR('7') PORT_CHAR('\'') PORT_BIT( 0x002, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_8) PORT_CHAR('8') PORT_CHAR('(') PORT_BIT( 0x004, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_9) PORT_CHAR('9') PORT_CHAR(')') PORT_BIT( 0x008, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_0) PORT_CHAR('0') PORT_CHAR('|') PORT_BIT( 0x010, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_1) PORT_CHAR('1') PORT_CHAR('!') PORT_BIT( 0x020, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_2) PORT_CHAR('2') PORT_CHAR('"') PORT_BIT( 0x040, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_3) PORT_CHAR('3') PORT_CHAR('#') PORT_BIT( 0x080, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_4) PORT_CHAR('4') PORT_CHAR('$') PORT_BIT( 0x100, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_5) PORT_CHAR('5') PORT_CHAR('%') PORT_BIT( 0x200, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_6) PORT_CHAR('6') PORT_CHAR('&') PORT_START("X1") PORT_BIT( 0x001, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_U) PORT_CHAR('u') PORT_CHAR('U') PORT_BIT( 0x002, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_I) PORT_CHAR('i') PORT_CHAR('I') PORT_BIT( 0x004, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_O) PORT_CHAR('o') PORT_CHAR('O') PORT_BIT( 0x008, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_P) PORT_CHAR('p') PORT_CHAR('P') PORT_BIT( 0x010, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_Q) PORT_CHAR('q') PORT_CHAR('Q') PORT_BIT( 0x020, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_W) PORT_CHAR('w') PORT_CHAR('W') PORT_BIT( 0x040, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_E) PORT_CHAR('e') PORT_CHAR('E') PORT_BIT( 0x080, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_R) PORT_CHAR('r') PORT_CHAR('R') PORT_BIT( 0x100, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_T) PORT_CHAR('t') PORT_CHAR('T') PORT_BIT( 0x200, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_Y) PORT_CHAR('y') PORT_CHAR('Y') PORT_START("X2") PORT_BIT( 0x001, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("F15") PORT_BIT( 0x002, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("F16") PORT_BIT( 0x004, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("RETURN") PORT_CODE(KEYCODE_ENTER) PORT_CHAR(13) PORT_BIT( 0x008, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("Keypad .") PORT_CODE(KEYCODE_DEL_PAD) PORT_BIT( 0x010, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("SPACE") PORT_CODE(KEYCODE_SPACE) PORT_CHAR(' ') PORT_BIT( 0x020, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("CAPS LOCK") PORT_CODE(KEYCODE_CAPSLOCK) PORT_BIT( 0x040, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("F11") PORT_CODE(KEYCODE_F11) PORT_CHAR(UCHAR_MAMEKEY(F11)) PORT_BIT( 0x080, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("F12") PORT_CODE(KEYCODE_F12) PORT_CHAR(UCHAR_MAMEKEY(F12)) PORT_BIT( 0x100, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("F13") PORT_BIT( 0x200, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("F14") PORT_START("X3") PORT_BIT( 0x001, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("F7") PORT_CODE(KEYCODE_F7) PORT_CHAR(UCHAR_MAMEKEY(F7)) PORT_BIT( 0x002, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("F8") PORT_CODE(KEYCODE_F8) PORT_CHAR(UCHAR_MAMEKEY(F8)) PORT_BIT( 0x004, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("F9") PORT_CODE(KEYCODE_F9) PORT_CHAR(UCHAR_MAMEKEY(F9)) PORT_BIT( 0x008, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("F10") PORT_CODE(KEYCODE_F10) PORT_CHAR(UCHAR_MAMEKEY(F10)) PORT_BIT( 0x010, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("F1") PORT_CODE(KEYCODE_F1) PORT_CHAR(UCHAR_MAMEKEY(F1)) PORT_BIT( 0x020, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("F2") PORT_CODE(KEYCODE_F2) PORT_CHAR(UCHAR_MAMEKEY(F2)) PORT_BIT( 0x040, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("F3") PORT_CODE(KEYCODE_F3) PORT_CHAR(UCHAR_MAMEKEY(F3)) PORT_BIT( 0x080, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("F4") PORT_CODE(KEYCODE_F4) PORT_CHAR(UCHAR_MAMEKEY(F4)) PORT_BIT( 0x100, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("F5") PORT_CODE(KEYCODE_F5) PORT_CHAR(UCHAR_MAMEKEY(F5)) PORT_BIT( 0x200, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("F6") PORT_CODE(KEYCODE_F6) PORT_CHAR(UCHAR_MAMEKEY(F6)) PORT_START("X4") PORT_BIT( 0x001, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME(UTF8_LEFT) PORT_CODE(KEYCODE_LEFT) PORT_CHAR(UCHAR_MAMEKEY(LEFT)) PORT_BIT( 0x002, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME(UTF8_RIGHT) PORT_CODE(KEYCODE_RIGHT) PORT_CHAR(UCHAR_MAMEKEY(RIGHT)) PORT_BIT( 0x004, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("Keypad 3") PORT_CODE(KEYCODE_3_PAD) PORT_BIT( 0x008, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("BS") PORT_CODE(KEYCODE_BACKSPACE) PORT_CHAR(8) PORT_BIT( 0x010, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_BACKSLASH) PORT_CHAR('@') PORT_CHAR('\\') PORT_BIT( 0x020, IP_ACTIVE_HIGH, IPT_UNUSED ) PORT_BIT( 0x040, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_EQUALS) PORT_CHAR('-') PORT_CHAR('=') PORT_BIT( 0x080, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_CLOSEBRACE) PORT_CHAR(']') PORT_CHAR('}') PORT_BIT( 0x100, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME(UTF8_UP) PORT_CODE(KEYCODE_UP) PORT_CHAR(UCHAR_MAMEKEY(UP)) PORT_BIT( 0x200, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME(UTF8_DOWN) PORT_CODE(KEYCODE_DOWN) PORT_CHAR(UCHAR_MAMEKEY(DOWN)) PORT_START("X5") PORT_BIT( 0x001, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("Keypad 9") PORT_CODE(KEYCODE_9_PAD) PORT_BIT( 0x002, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("CL") PORT_BIT( 0x004, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("Keypad 2") PORT_CODE(KEYCODE_2_PAD) PORT_BIT( 0x008, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("LF") PORT_BIT( 0x010, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("DEL") PORT_CODE(KEYCODE_DEL) PORT_BIT( 0x020, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("HT") PORT_BIT( 0x040, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_TILDE) PORT_CHAR('^') PORT_CHAR('~') PORT_BIT( 0x080, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_OPENBRACE) PORT_CHAR('[') PORT_CHAR('{') PORT_BIT( 0x100, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("Keypad 7") PORT_CODE(KEYCODE_7_PAD) PORT_BIT( 0x200, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("Keypad 8") PORT_CODE(KEYCODE_8_PAD) PORT_START("X6") PORT_BIT( 0x001, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_M) PORT_CHAR('m') PORT_CHAR('M') PORT_BIT( 0x002, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_COMMA) PORT_CHAR(',') PORT_CHAR('<') PORT_BIT( 0x004, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_STOP) PORT_CHAR('.') PORT_CHAR('>') PORT_BIT( 0x008, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_SLASH) PORT_CHAR('/') PORT_CHAR('?') PORT_BIT( 0x010, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_Z) PORT_CHAR('z') PORT_CHAR('Z') PORT_BIT( 0x020, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_X) PORT_CHAR('x') PORT_CHAR('X') PORT_BIT( 0x040, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_C) PORT_CHAR('c') PORT_CHAR('C') PORT_BIT( 0x080, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_V) PORT_CHAR('v') PORT_CHAR('V') PORT_BIT( 0x100, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_B) PORT_CHAR('b') PORT_CHAR('B') PORT_BIT( 0x200, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_N) PORT_CHAR('n') PORT_CHAR('N') PORT_START("X7") PORT_BIT( 0x001, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_J) PORT_CHAR('j') PORT_CHAR('J') PORT_BIT( 0x002, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_K) PORT_CHAR('k') PORT_CHAR('K') PORT_BIT( 0x004, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_L) PORT_CHAR('l') PORT_CHAR('L') PORT_BIT( 0x008, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_COLON) PORT_CHAR(';') PORT_CHAR('+') PORT_BIT( 0x010, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_A) PORT_CHAR('a') PORT_CHAR('A') PORT_BIT( 0x020, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_S) PORT_CHAR('s') PORT_CHAR('S') PORT_BIT( 0x040, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_D) PORT_CHAR('d') PORT_CHAR('D') PORT_BIT( 0x080, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_F) PORT_CHAR('f') PORT_CHAR('F') PORT_BIT( 0x100, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_G) PORT_CHAR('g') PORT_CHAR('G') PORT_BIT( 0x200, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_H) PORT_CHAR('h') PORT_CHAR('H') PORT_START("X8") PORT_BIT( 0x001, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("Keypad 6") PORT_CODE(KEYCODE_6_PAD) PORT_BIT( 0x002, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_MINUS) PORT_CHAR('-') PORT_CHAR('_') PORT_BIT( 0x004, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("Keypad 1") PORT_CODE(KEYCODE_1_PAD) PORT_BIT( 0x008, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("Keypad 0") PORT_CODE(KEYCODE_0_PAD) PORT_BIT( 0x010, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("ESC") PORT_CODE(KEYCODE_ESC) PORT_BIT( 0x020, IP_ACTIVE_HIGH, IPT_UNUSED ) PORT_BIT( 0x040, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_QUOTE) PORT_CHAR(':') PORT_CHAR('*') PORT_BIT( 0x080, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("Keypad RET") PORT_CODE(KEYCODE_ENTER_PAD) PORT_BIT( 0x100, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("Keypad 4") PORT_CODE(KEYCODE_4_PAD) PORT_BIT( 0x200, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("Keypad 5") PORT_CODE(KEYCODE_5_PAD) PORT_START("MODIFIERS") PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("SHIFT") PORT_CODE(KEYCODE_LSHIFT) PORT_CHAR(UCHAR_SHIFT_1) PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("CTRL") PORT_CODE(KEYCODE_LCONTROL) PORT_CHAR(UCHAR_MAMEKEY(LCONTROL)) INPUT_PORTS_END /* Video */ MC6845_UPDATE_ROW( bw12_state::crtc_update_row ) { const pen_t *pen = m_palette->pens(); int column, bit; for (column = 0; column < x_count; column++) { uint8_t code = m_video_ram[((ma + column) & BW12_VIDEORAM_MASK)]; uint16_t addr = code << 4 | (ra & 0x0f); uint8_t data = m_char_rom->base()[addr & BW12_CHARROM_MASK]; if (column == cursor_x) { data = 0xff; } for (bit = 0; bit < 8; bit++) { int x = (column * 8) + bit; int color = BIT(data, 7) && de; bitmap.pix32(vbp + y, hbp + x) = pen[color]; data <<= 1; } } } /* PIA6821 Interface */ WRITE_LINE_MEMBER( bw12_state::write_centronics_busy ) { m_centronics_busy = state; } WRITE_LINE_MEMBER( bw12_state::write_centronics_fault ) { m_centronics_fault = state; } WRITE_LINE_MEMBER( bw12_state::write_centronics_perror ) { m_centronics_perror = state; } uint8_t bw12_state::pia_pa_r() { /* bit description PA0 Input from Centronics BUSY status PA1 Input from Centronics ERROR status PA2 Input from Centronics PAPER OUT status PA3 Input from FDC MOTOR PA4 Input from PIT OUT2 PA5 Input from keyboard strobe PA6 Input from keyboard serial data PA7 Input from FDC interrupt */ uint8_t data = 0; data |= m_centronics_busy; data |= (m_centronics_fault << 1); data |= (m_centronics_perror << 2); data |= (m_motor_on << 3); data |= (m_pit_out2 << 4); data |= (m_key_stb << 5); data |= (m_key_sin << 6); data |= (m_fdc->get_irq() ? 1 : 0) << 7; return data; } WRITE_LINE_MEMBER( bw12_state::pia_cb2_w ) { if (state) { /* keyboard shift clock */ m_key_shift++; if (m_key_shift < 10) { m_key_sin = m_key_data[m_key_shift]; } } } /* PIT8253 Interface */ WRITE_LINE_MEMBER( bw12_state::pit_out2_w ) { m_pit_out2 = state; } /* AY-5-3600-PRO-002 Interface */ READ_LINE_MEMBER( bw12_state::ay3600_shift_r ) { return BIT(m_modifiers->read(), 0); } READ_LINE_MEMBER( bw12_state::ay3600_control_r ) { return BIT(m_modifiers->read(), 1); } WRITE_LINE_MEMBER( bw12_state::ay3600_data_ready_w ) { m_key_stb = state; m_pia->cb1_w(state); if (state) { uint16_t data = m_kbc->b_r(); m_key_data[0] = BIT(data, 6); m_key_data[1] = BIT(data, 3); m_key_data[2] = BIT(data, 1); m_key_data[3] = BIT(data, 0); m_key_data[4] = BIT(data, 2); m_key_data[5] = BIT(data, 4); m_key_data[6] = BIT(data, 5); m_key_data[7] = BIT(data, 7); m_key_data[8] = BIT(data, 8); m_key_shift = 0; m_key_sin = m_key_data[m_key_shift]; } } /* Machine Initialization */ void bw12_state::machine_start() { /* setup memory banking */ membank("bank1")->configure_entry(0, m_rom->base()); membank("bank1")->configure_entry(1, m_ram->pointer()); membank("bank1")->configure_entries(2, 2, m_ram->pointer() + 0x10000, 0x8000); /* register for state saving */ save_item(NAME(m_bank)); save_item(NAME(m_pit_out2)); save_item(NAME(m_key_data)); save_item(NAME(m_key_sin)); save_item(NAME(m_key_stb)); save_item(NAME(m_key_shift)); save_item(NAME(m_motor_on)); save_item(NAME(m_motor0)); save_item(NAME(m_motor1)); save_item(NAME(m_centronics_busy)); save_item(NAME(m_centronics_fault)); save_item(NAME(m_centronics_perror)); machine().save().register_postload(save_prepost_delegate(FUNC(bw12_state::bankswitch), this)); } void bw12_state::machine_reset() { } static void bw12_floppies(device_slot_interface &device) { device.option_add("525dd", FLOPPY_525_SSDD); } FLOPPY_FORMATS_MEMBER( bw12_state::bw12_floppy_formats ) FLOPPY_BW12_FORMAT FLOPPY_FORMATS_END static void bw14_floppies(device_slot_interface &device) { device.option_add("525dd", FLOPPY_525_DD); } FLOPPY_FORMATS_MEMBER( bw12_state::bw14_floppy_formats ) FLOPPY_BW12_FORMAT FLOPPY_FORMATS_END /* F4 Character Displayer */ static const gfx_layout bw12_charlayout = { 8, 9, /* 8 x 9 characters */ 256, /* 128 characters */ 1, /* 1 bits per pixel */ { 0 }, /* no bitplanes */ /* x offsets */ { 0, 1, 2, 3, 4, 5, 6, 7 }, /* y offsets */ { 0*8, 1*8, 2*8, 3*8, 4*8, 5*8, 6*8, 7*8, 8*8 }, 8*16 /* every char takes 16 bytes */ }; static GFXDECODE_START( gfx_bw12 ) GFXDECODE_ENTRY( "chargen", 0x0000, bw12_charlayout, 0, 1 ) GFXDECODE_END /* Machine Driver */ void bw12_state::common(machine_config &config) { /* basic machine hardware */ Z80(config, m_maincpu, 16_MHz_XTAL / 4); m_maincpu->set_addrmap(AS_PROGRAM, &bw12_state::bw12_mem); m_maincpu->set_addrmap(AS_IO, &bw12_state::bw12_io); LS259(config, m_latch); // IC18 m_latch->q_out_cb<0>().set(FUNC(bw12_state::ls138_a0_w)); // LS138 A0 m_latch->q_out_cb<1>().set(FUNC(bw12_state::ls138_a1_w)); // LS138 A1 // Q2 not connected m_latch->q_out_cb<3>().set(FUNC(bw12_state::init_w)); // _INIT m_latch->q_out_cb<4>().set_output("led0"); // CAP LOCK m_latch->q_out_cb<5>().set(FUNC(bw12_state::motor0_w)); // MOTOR 0 m_latch->q_out_cb<6>().set(FUNC(bw12_state::motor1_w)); // MOTOR 1 m_latch->q_out_cb<7>().set(m_fdc, FUNC(upd765a_device::tc_line_w)); // FDC TC /* video hardware */ screen_device &screen(SCREEN(config, SCREEN_TAG, SCREEN_TYPE_RASTER, rgb_t::amber())); screen.set_refresh_hz(60); screen.set_vblank_time(ATTOSECONDS_IN_USEC(2500)); // not accurate screen.set_screen_update(MC6845_TAG, FUNC(mc6845_device::screen_update)); screen.set_size(640, 200); screen.set_visarea(0, 640-1, 0, 200-1); GFXDECODE(config, "gfxdecode", m_palette, gfx_bw12); PALETTE(config, m_palette, palette_device::MONOCHROME); MC6845(config, m_crtc, 16_MHz_XTAL / 8); m_crtc->set_screen(SCREEN_TAG); m_crtc->set_show_border_area(true); m_crtc->set_char_width(8); m_crtc->set_update_row_callback(FUNC(bw12_state::crtc_update_row)); /* sound hardware */ SPEAKER(config, "speaker").front_center(); MC1408(config, "dac", 0).add_route(ALL_OUTPUTS, "speaker", 0.125); // ls273.ic5 + mc1408.ic4 voltage_regulator_device &vref(VOLTAGE_REGULATOR(config, "vref")); vref.add_route(0, "dac", 1.0, DAC_VREF_POS_INPUT); vref.add_route(0, "dac", -1.0, DAC_VREF_NEG_INPUT); /* devices */ TIMER(config, FLOPPY_TIMER_TAG).configure_generic(FUNC(bw12_state::floppy_motor_off_tick)); UPD765A(config, m_fdc, 16_MHz_XTAL / 4, false, true); PIA6821(config, m_pia, 0); m_pia->readpa_handler().set(FUNC(bw12_state::pia_pa_r)); m_pia->writepb_handler().set("cent_data_out", FUNC(output_latch_device::write)); m_pia->ca2_handler().set(CENTRONICS_TAG, FUNC(centronics_device::write_strobe)); m_pia->cb2_handler().set(FUNC(bw12_state::pia_cb2_w)); m_pia->irqa_handler().set_inputline(Z80_TAG, INPUT_LINE_IRQ0); m_pia->irqb_handler().set_inputline(Z80_TAG, INPUT_LINE_IRQ0); Z80SIO(config, m_sio, 16_MHz_XTAL / 4); // SIO/0 m_sio->out_txda_callback().set(RS232_A_TAG, FUNC(rs232_port_device::write_txd)); m_sio->out_dtra_callback().set(RS232_A_TAG, FUNC(rs232_port_device::write_dtr)); m_sio->out_rtsa_callback().set(RS232_A_TAG, FUNC(rs232_port_device::write_rts)); m_sio->out_txdb_callback().set(RS232_B_TAG, FUNC(rs232_port_device::write_txd)); m_sio->out_dtrb_callback().set(RS232_B_TAG, FUNC(rs232_port_device::write_dtr)); m_sio->out_rtsb_callback().set(RS232_B_TAG, FUNC(rs232_port_device::write_rts)); m_sio->out_int_callback().set_inputline(m_maincpu, INPUT_LINE_IRQ0); PIT8253(config, m_pit); m_pit->set_clk<0>(1.8432_MHz_XTAL); m_pit->out_handler<0>().set(m_sio, FUNC(z80sio_device::rxca_w)); m_pit->out_handler<0>().append(m_sio, FUNC(z80sio_device::txca_w)); m_pit->out_handler<0>().append(RS232_A_TAG, FUNC(rs232_port_device::write_etc)); m_pit->set_clk<1>(1.8432_MHz_XTAL); m_pit->out_handler<1>().set(m_sio, FUNC(z80sio_device::rxtxcb_w)); m_pit->out_handler<1>().append(RS232_B_TAG, FUNC(rs232_port_device::write_etc)); m_pit->set_clk<2>(1.8432_MHz_XTAL); m_pit->out_handler<2>().set(FUNC(bw12_state::pit_out2_w)); AY3600(config, m_kbc, 0); m_kbc->x0().set_ioport("X0"); m_kbc->x1().set_ioport("X1"); m_kbc->x2().set_ioport("X2"); m_kbc->x3().set_ioport("X3"); m_kbc->x4().set_ioport("X4"); m_kbc->x5().set_ioport("X5"); m_kbc->x6().set_ioport("X6"); m_kbc->x7().set_ioport("X7"); m_kbc->x8().set_ioport("X8"); m_kbc->shift().set(FUNC(bw12_state::ay3600_shift_r)); m_kbc->control().set(FUNC(bw12_state::ay3600_control_r)); m_kbc->data_ready().set(FUNC(bw12_state::ay3600_data_ready_w)); rs232_port_device &rs232a(RS232_PORT(config, RS232_A_TAG, default_rs232_devices, nullptr)); rs232a.rxd_handler().set(m_sio, FUNC(z80sio_device::rxa_w)); rs232a.dcd_handler().set(m_sio, FUNC(z80sio_device::dcda_w)); rs232a.cts_handler().set(m_sio, FUNC(z80sio_device::ctsa_w)); rs232_port_device &rs232b(RS232_PORT(config, RS232_B_TAG, default_rs232_devices, nullptr)); rs232b.rxd_handler().set(m_sio, FUNC(z80sio_device::rxb_w)); rs232b.dcd_handler().set(m_sio, FUNC(z80sio_device::dcdb_w)); rs232b.cts_handler().set(m_sio, FUNC(z80sio_device::ctsb_w)); /* printer */ CENTRONICS(config, m_centronics, centronics_devices, "printer"); m_centronics->ack_handler().set(m_pia, FUNC(pia6821_device::ca1_w)); m_centronics->busy_handler().set(FUNC(bw12_state::write_centronics_busy)); m_centronics->fault_handler().set(FUNC(bw12_state::write_centronics_fault)); m_centronics->perror_handler().set(FUNC(bw12_state::write_centronics_perror)); output_latch_device ¢_data_out(OUTPUT_LATCH(config, "cent_data_out")); m_centronics->set_output_latch(cent_data_out); } void bw12_state::bw12(machine_config &config) { common(config); /* floppy drives */ FLOPPY_CONNECTOR(config, UPD765_TAG ":1", bw12_floppies, "525dd", bw12_state::bw12_floppy_formats); FLOPPY_CONNECTOR(config, UPD765_TAG ":2", bw12_floppies, "525dd", bw12_state::bw12_floppy_formats); // software lists SOFTWARE_LIST(config, "flop_list").set_original("bw12"); /* internal ram */ RAM(config, RAM_TAG).set_default_size("64K"); } void bw12_state::bw14(machine_config &config) { common(config); /* floppy drives */ FLOPPY_CONNECTOR(config, UPD765_TAG ":1", bw14_floppies, "525dd", bw12_state::bw14_floppy_formats); FLOPPY_CONNECTOR(config, UPD765_TAG ":2", bw14_floppies, "525dd", bw12_state::bw14_floppy_formats); // software lists SOFTWARE_LIST(config, "flop_list").set_original("bw14"); /* internal ram */ RAM(config, RAM_TAG).set_default_size("128K"); } /* ROMs */ ROM_START( bw12 ) ROM_REGION( 0x10000, Z80_TAG, 0 ) ROM_LOAD( "bw14boot.ic41", 0x0000, 0x1000, CRC(782fe341) SHA1(eefe5ad6b1ef77a1caf0af743b74de5fa1c4c19d) ) ROM_REGION(0x1000, "chargen", 0) ROM_LOAD( "bw14char.ic1", 0x0000, 0x1000, CRC(f9dd68b5) SHA1(50132b759a6d84c22c387c39c0f57535cd380411) ) ROM_END #define rom_bw14 rom_bw12 ROM_START( bw14d ) ROM_REGION( 0x10000, Z80_TAG, 0 ) ROM_LOAD( "bw14boot.ic41", 0x0000, 0x1000, CRC(782fe341) SHA1(eefe5ad6b1ef77a1caf0af743b74de5fa1c4c19d) ) ROM_REGION(0x1000, "chargen", 0) ROM_LOAD( "gcrd.bin", 0x0000, 0x1000, CRC(638f3e1d) SHA1(5a0b2f47c66fe8db6f58d348ac29074a4db51258) ) ROM_END /* System Drivers */ /* YEAR NAME PARENT COMPAT MACHINE INPUT CLASS INIT COMPANY FULLNAME FLAGS */ COMP( 1984, bw12, 0, 0, bw12, bw12, bw12_state, empty_init, "Bondwell Holding", "Bondwell 12", MACHINE_SUPPORTS_SAVE ) COMP( 1984, bw14, bw12, 0, bw14, bw12, bw12_state, empty_init, "Bondwell Holding", "Bondwell 14", MACHINE_SUPPORTS_SAVE ) COMP( 1984, bw14d, 0, 0, bw14, bw12, bw12_state, empty_init, "Bondwell Holding", "Bondwell Portable Computer Model 14 (German keyboard)", MACHINE_SUPPORTS_SAVE )