diff options
Diffstat (limited to 'src/mame/drivers/vg5k.cpp')
-rw-r--r-- | src/mame/drivers/vg5k.cpp | 471 |
1 files changed, 0 insertions, 471 deletions
diff --git a/src/mame/drivers/vg5k.cpp b/src/mame/drivers/vg5k.cpp deleted file mode 100644 index 34383bda6f7..00000000000 --- a/src/mame/drivers/vg5k.cpp +++ /dev/null @@ -1,471 +0,0 @@ -// license:BSD-3-Clause -// copyright-holders:Sandro Ronco -/*************************************************************************** - - Philips VG-5000mu - - Driver by Sandro Ronco with help from Daniel Coulom - - 05/2010 (Sandro Ronco) - - EF9345 video controller - - keyboard input ports - 05/2009 Skeleton driver. - - Known issues: - - Support the K7 filetype for ease of usage, but as read only. - - Information ( see the very informative http://vg5k.free.fr/ ): - - Variants: Radiola VG5000 and Schneider VG5000 - - CPU: Zilog Z80 running at 4MHz - - ROM: 18KB (16 KB BASIC + 2 KB charset ) - - RAM: 24 KB - - Video: SGS Thomson EF9345 processor - - Text mode: 25 rows x 40 columns - - Character matrix: 8 x 10 - - ASCII characters set, 128 graphics mode characters, 192 user characters. - - Graphics mode: not available within basic, only semi graphic is available. - - Colors: 8 - - Sound: Synthesizer, 4 Octaves - - Keyboard: 63 keys AZERTY, Caps Lock, CTRL key to access 33 BASIC instructions - - I/O: Tape recorder connector (1200/2400 bauds), SCART connector to TV (RGB), - External PSU (VU0022) connector, Bus connector (2x25 pins) - - There are 2 versions of the VG5000 ROM, one with Basic v1.0, - contained in two 8 KB ROMs, and one with Basic 1.1, contained in - a single 16 KB ROM. - - RAM: 24 KB (3 x 8 KB) type SRAM D4168C, more precisely: - 2 x 8 KB, used by the system - 1 x 8 KB, used by the video processor - - Memory Map: - $0000 - $3fff BASIC + monitor - $4000 - $47cf Screen - $47d0 - $7fff reserved area for BASIC, variables, etc - $8000 - $bfff Memory Expansion 16K or ROM cart - $c000 - $ffff Memory Expansion 32K or ROM cart - - This computer was NOT MSX-compatible! - - -****************************************************************************/ - - -#include "emu.h" - -#include "cpu/z80/z80.h" -#include "imagedev/cassette.h" -#include "imagedev/printer.h" -#include "machine/ram.h" -#include "machine/timer.h" -#include "sound/dac.h" -#include "video/ef9345.h" - -#include "screen.h" -#include "softlist.h" -#include "speaker.h" - -#include "formats/vg5k_cas.h" - - -class vg5k_state : public driver_device -{ -public: - vg5k_state(const machine_config &mconfig, device_type type, const char *tag) - : driver_device(mconfig, type, tag) - , m_maincpu(*this, "maincpu") - , m_ef9345(*this, "ef9345") - , m_dac(*this, "dac") - , m_printer(*this, "printer") - , m_cassette(*this, "cassette") - , m_ram(*this, RAM_TAG) - { } - - void vg5k(machine_config &config); - - void init_vg5k(); - - DECLARE_INPUT_CHANGED_MEMBER(delta_button); - -private: - required_device<z80_device> m_maincpu; - required_device<ef9345_device> m_ef9345; - required_device<dac_bit_interface> m_dac; - required_device<printer_image_device> m_printer; - required_device<cassette_image_device> m_cassette; - required_device<ram_device> m_ram; - - offs_t m_ef9345_offset; - uint8_t m_printer_latch; - uint8_t m_printer_signal; - - virtual void machine_start() override; - virtual void machine_reset() override; - - void z80_m1_w(uint8_t data); - uint8_t printer_state_r(); - void printer_state_w(uint8_t data); - void printer_data_w(uint8_t data); - void ef9345_offset_w(uint8_t data); - uint8_t ef9345_io_r(); - void ef9345_io_w(uint8_t data); - uint8_t cassette_r(); - void cassette_w(uint8_t data); - TIMER_CALLBACK_MEMBER(z80_irq_clear); - TIMER_DEVICE_CALLBACK_MEMBER(z80_irq); - TIMER_DEVICE_CALLBACK_MEMBER(vg5k_scanline); - void vg5k_io(address_map &map); - void vg5k_mem(address_map &map); -}; - -void vg5k_state::z80_m1_w(uint8_t data) -{ - // Leverage the refresh callback of the Z80 emulator to pretend - // the second T state of the M1 cycle didn't happen. - // This simulates the WAIT line asserted at that moment, as - // the current implementation of the Z80 doesn't handle the WAIT - // line at that moment. - m_maincpu->adjust_icount(-1); -} - -uint8_t vg5k_state::printer_state_r() -{ - return (m_printer->is_ready() ? 0x00 : 0xff); -} - -void vg5k_state::printer_state_w(uint8_t data) -{ - // Character is emitted on a rising edge. - if (!BIT(m_printer_signal, 0) && BIT(data, 0)) { - m_printer->output(m_printer_latch); - } - m_printer_signal = data; -} - - -void vg5k_state::printer_data_w(uint8_t data) -{ - m_printer_latch = data; -} - - -void vg5k_state::ef9345_offset_w(uint8_t data) -{ - m_ef9345_offset = data; -} - - -uint8_t vg5k_state::ef9345_io_r() -{ - return m_ef9345->data_r(m_ef9345_offset); -} - - -void vg5k_state::ef9345_io_w(uint8_t data) -{ - m_ef9345->data_w(m_ef9345_offset, data); -} - - -uint8_t vg5k_state::cassette_r() -{ - double level = m_cassette->input(); - - return (level > 0.03) ? 0xff : 0x00; -} - - -void vg5k_state::cassette_w(uint8_t data) -{ - m_dac->write(BIT(data, 3)); - m_cassette->change_state(BIT(data, 1) ? CASSETTE_MOTOR_ENABLED : CASSETTE_MOTOR_DISABLED , CASSETTE_MASK_MOTOR); - - if (BIT(data, 1)) { - if (BIT(data, 0)) { - m_cassette->output(+1); - } else { - m_cassette->output(-1); - } - } else { - m_cassette->output(0); - } -} - - -void vg5k_state::vg5k_mem(address_map &map) -{ - map.unmap_value_high(); - map(0x0000, 0x3fff).rom(); - map(0x4000, 0x7fff).ram(); - map(0x8000, 0xffff).noprw(); /* messram expansion memory */ -} - -void vg5k_state::vg5k_io(address_map &map) -{ - map.unmap_value_high(); - map.global_mask(0xff); - - /* joystick */ - map(0x07, 0x07).portr("JOY0"); - map(0x08, 0x08).portr("JOY1"); - - /* printer */ - map(0x10, 0x10).rw(FUNC(vg5k_state::printer_state_r), FUNC(vg5k_state::printer_state_w)); - map(0x11, 0x11).w(FUNC(vg5k_state::printer_data_w)); - - /* keyboard */ - map(0x80, 0x80).portr("ROW1"); - map(0x81, 0x81).portr("ROW2"); - map(0x82, 0x82).portr("ROW3"); - map(0x83, 0x83).portr("ROW4"); - map(0x84, 0x84).portr("ROW5"); - map(0x85, 0x85).portr("ROW6"); - map(0x86, 0x86).portr("ROW7"); - map(0x87, 0x87).portr("ROW8"); - - /* EF9345 */ - map(0x8f, 0x8f).w(FUNC(vg5k_state::ef9345_offset_w)); - map(0xcf, 0xcf).rw(FUNC(vg5k_state::ef9345_io_r), FUNC(vg5k_state::ef9345_io_w)); - - /* cassette */ - map(0xaf, 0xaf).rw(FUNC(vg5k_state::cassette_r), FUNC(vg5k_state::cassette_w)); -} - -/* Input ports */ -static INPUT_PORTS_START( vg5k ) - PORT_START("ROW1") - PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_HOME) PORT_NAME("LIST EFFE") PORT_CHAR(UCHAR_MAMEKEY(F1)) - PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_UNUSED ) - PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_LSHIFT) PORT_CODE(KEYCODE_RSHIFT) PORT_NAME("MAJ") PORT_CHAR(UCHAR_SHIFT_1) - PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_LEFT) PORT_CHAR(UCHAR_MAMEKEY(LEFT)) - PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_RIGHT) PORT_CHAR(UCHAR_MAMEKEY(RIGHT)) - PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_DOWN) PORT_CHAR(UCHAR_MAMEKEY(DOWN)) - PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_LCONTROL) PORT_CODE(KEYCODE_RCONTROL) PORT_NAME("CTRL ACCENT") PORT_CHAR(UCHAR_SHIFT_2) - PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_INSERT) PORT_NAME("INSC INSL") PORT_CHAR(UCHAR_MAMEKEY(INSERT)) - PORT_START("ROW2") - PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_F2) PORT_NAME("RUN STOP") PORT_CHAR(UCHAR_MAMEKEY(F2)) PORT_CHAR(UCHAR_MAMEKEY(PAUSE)) - PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_A) PORT_CHAR('q') PORT_CHAR('Q') - PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_SPACE) PORT_NAME("ESPACE") PORT_CHAR(' ') - PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_CAPSLOCK) PORT_NAME("LCK") PORT_CHAR(UCHAR_MAMEKEY(CAPSLOCK)) - PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_UNUSED ) - PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_ENTER) PORT_NAME("RET") PORT_CHAR(13) - PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_UP) PORT_CHAR(UCHAR_MAMEKEY(UP)) - PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_Q) PORT_CHAR('a') PORT_CHAR('A') - PORT_START("ROW3") - PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_Z) PORT_CHAR('w') PORT_CHAR('W') - PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_X) PORT_CHAR('x') PORT_CHAR('X') - 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_V) PORT_CHAR('v') PORT_CHAR('V') - PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_B) PORT_CHAR('b') PORT_CHAR('B') - PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_1) PORT_CHAR('1') PORT_CHAR('#') PORT_CHAR(0xe2) // â - PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_M) PORT_CHAR(':') PORT_CHAR('*') - PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_W) PORT_CHAR('z') PORT_CHAR('Z') - PORT_START("ROW4") - PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_S) PORT_CHAR('s') PORT_CHAR('S') - PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_E) PORT_CHAR('e') PORT_CHAR('E') - PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_3) PORT_CHAR('3') PORT_CHAR('"') PORT_CHAR(0xea) // ê - PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_4) PORT_CHAR('4') PORT_CHAR(0xa3) PORT_CHAR(0xef) // £ ï - PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_5) PORT_CHAR('5') PORT_CHAR('$') PORT_CHAR(0xf9) // ù - PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_6) PORT_CHAR('6') PORT_CHAR('%') PORT_CHAR(0xf4) // ô - PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_2) PORT_CHAR('2') PORT_CHAR('!') PORT_CHAR(0xe9) // é - PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_STOP) PORT_CHAR(';') PORT_CHAR('@') - PORT_START("ROW5") - PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_TAB) PORT_CHAR(0xf7) PORT_CHAR('_') // ÷ - PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_MINUS) PORT_CHAR(0xd7) PORT_CHAR('|') // × - PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_F) PORT_CHAR('f') PORT_CHAR('F') - 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_U) PORT_CHAR('u') PORT_CHAR('U') - 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_O) PORT_CHAR('o') PORT_CHAR('O') - PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_P) PORT_CHAR('p') PORT_CHAR('P') - PORT_START("ROW6") - PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_UNUSED ) - PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_0) PORT_CHAR('0') PORT_CHAR(')') PORT_CHAR(0xe0) // à - 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_SLASH) PORT_CHAR(0x2026) PORT_CHAR(0x3c0) // … π - PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_QUOTE) PORT_CHAR(',') PORT_CHAR('/') - PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_7) PORT_CHAR('7') PORT_CHAR('&') PORT_CHAR(0xe8) // è - PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_8) PORT_CHAR('8') PORT_CHAR('\'') PORT_CHAR(0xfb) // û - PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_9) PORT_CHAR('9') PORT_CHAR('(') PORT_CHAR(0xe7) // ç - PORT_START("ROW7") - PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_TILDE) PORT_CHAR('-') PORT_CHAR('?') - PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_BACKSLASH) PORT_CHAR('+') PORT_CHAR('.') - PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_R) PORT_CHAR('r') PORT_CHAR('R') - PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_T) PORT_CHAR('t') PORT_CHAR('T') - 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_OPENBRACE) PORT_CHAR('<') PORT_CHAR('>') - PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_CLOSEBRACE) PORT_NAME("PRT") PORT_CHAR(UCHAR_MAMEKEY(PRTSCR)) - PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_D) PORT_CHAR('d') PORT_CHAR('D') - PORT_START("ROW8") - PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_EQUALS) PORT_CHAR('=') PORT_CHAR('^') - PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_BACKSPACE) PORT_NAME("EFFC EFFL") PORT_CHAR(8) PORT_CHAR(UCHAR_MAMEKEY(DEL)) - 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_J) PORT_CHAR('j') PORT_CHAR('J') - 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_K) PORT_CHAR('k') PORT_CHAR('K') - PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_L) PORT_CHAR('l') PORT_CHAR('L') - PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_COLON) PORT_CHAR('m') PORT_CHAR('M') - PORT_START("JOY0") - PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_JOYSTICK_UP ) PORT_PLAYER(1) - PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT ) PORT_PLAYER(1) - PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_JOYSTICK_DOWN ) PORT_PLAYER(1) - PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT ) PORT_PLAYER(1) - PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_BUTTON1 ) PORT_PLAYER(1) - 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("JOY1") - PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_JOYSTICK_UP ) PORT_PLAYER(2) - PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT ) PORT_PLAYER(2) - PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_JOYSTICK_DOWN ) PORT_PLAYER(2) - PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT ) PORT_PLAYER(2) - PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_BUTTON1 ) PORT_PLAYER(2) - 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("direct") - PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_END) PORT_NAME("DELTA") PORT_CHANGED_MEMBER(DEVICE_SELF, vg5k_state, delta_button, 0) -INPUT_PORTS_END - - -TIMER_CALLBACK_MEMBER(vg5k_state::z80_irq_clear) -{ - m_maincpu->set_input_line(0, CLEAR_LINE); -} - - -TIMER_DEVICE_CALLBACK_MEMBER(vg5k_state::z80_irq) -{ - m_maincpu->set_input_line(0, ASSERT_LINE); - - machine().scheduler().timer_set(attotime::from_usec(100), timer_expired_delegate(FUNC(vg5k_state::z80_irq_clear),this)); -} - -TIMER_DEVICE_CALLBACK_MEMBER(vg5k_state::vg5k_scanline) -{ - m_ef9345->update_scanline((uint16_t)param); -} - -INPUT_CHANGED_MEMBER(vg5k_state::delta_button) -{ - // The yellow Delta key on the keyboard is wired so that it asserts directly the NMI line of the Z80. - if (!newval) { - m_maincpu->pulse_input_line(INPUT_LINE_NMI, attotime::zero); - } -} - - -void vg5k_state::machine_start() -{ - save_item(NAME(m_ef9345_offset)); - save_item(NAME(m_printer_latch)); - save_item(NAME(m_printer_signal)); -} - -void vg5k_state::machine_reset() -{ - m_ef9345_offset = 0; - m_printer_latch = 0; - m_printer_signal = 0; -} - - -/* F4 Character Displayer */ -static const gfx_layout vg5k_charlayout = -{ - 8, 16, /* 8 x 16 characters */ - 256, /* 256 characters */ - 1, /* 1 bits per pixel */ - { 0 }, /* no bitplanes */ - /* x offsets */ - { 7, 6, 5, 4, 3, 2, 1, 0 }, - /* y offsets */ - { 0, 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 /* every char takes 16 bytes */ -}; - -static GFXDECODE_START( gfx_vg5k ) - GFXDECODE_ENTRY( "ef9345", 0x2000, vg5k_charlayout, 0, 4 ) -GFXDECODE_END - -void vg5k_state::init_vg5k() -{ - uint8_t *FNT = memregion("ef9345")->base(); - uint16_t dest = 0x2000; - - /* Unscramble the chargen rom as the format is too complex for gfxdecode to handle unaided */ - for (uint16_t a = 0; a < 8192; a+=4096) - for (uint16_t b = 0; b < 2048; b+=64) - for (uint16_t c = 0; c < 4; c++) - for (uint16_t d = 0; d < 64; d+=4) - FNT[dest++]=FNT[a|b|c|d]; - - - /* install expansion memory*/ - address_space &program = m_maincpu->space(AS_PROGRAM); - uint8_t *ram = m_ram->pointer(); - uint16_t ram_size = m_ram->size(); - - if (ram_size > 0x4000) - program.install_ram(0x8000, 0x3fff + ram_size, ram); -} - - -void vg5k_state::vg5k(machine_config &config) -{ - /* basic machine hardware */ - Z80(config, m_maincpu, XTAL(4'000'000)); - m_maincpu->set_addrmap(AS_PROGRAM, &vg5k_state::vg5k_mem); - m_maincpu->set_addrmap(AS_IO, &vg5k_state::vg5k_io); - m_maincpu->refresh_cb().set(FUNC(vg5k_state::z80_m1_w)); - - TIMER(config, "vg5k_scanline").configure_scanline(FUNC(vg5k_state::vg5k_scanline), "screen", 0, 10); - - TIMER(config, "irq_timer").configure_periodic(FUNC(vg5k_state::z80_irq), attotime::from_msec(20)); - - EF9345(config, m_ef9345, 0); - m_ef9345->set_palette_tag("palette"); - - /* video hardware */ - screen_device &screen(SCREEN(config, "screen", SCREEN_TYPE_RASTER)); - screen.set_refresh_hz(50); - screen.set_vblank_time(ATTOSECONDS_IN_USEC(2500)); /* not accurate */ - screen.set_screen_update("ef9345", FUNC(ef9345_device::screen_update)); - screen.set_size(336, 300); - screen.set_visarea(00, 336-1, 00, 270-1); - - GFXDECODE(config, "gfxdecode", "palette", gfx_vg5k); - PALETTE(config, "palette").set_entries(8); - - /* sound hardware */ - SPEAKER(config, "speaker").front_center(); - DAC_1BIT(config, "dac", 0).add_route(ALL_OUTPUTS, "speaker", 0.125); - - /* cassette */ - CASSETTE(config, m_cassette); - m_cassette->set_formats(vg5k_cassette_formats); - m_cassette->set_default_state(CASSETTE_STOPPED | CASSETTE_SPEAKER_ENABLED); - m_cassette->add_route(0, "speaker", 0.05); - m_cassette->set_interface("vg5k_cass"); - - /* printer */ - PRINTER(config, m_printer, 0); - - /* internal ram */ - RAM(config, RAM_TAG).set_default_size("16K").set_extra_options("32K,48K"); - - /* Software lists */ - SOFTWARE_LIST(config, "cass_list").set_original("vg5k"); -} - -/* ROM definition */ -ROM_START( vg5k ) - ROM_REGION( 0x10000, "maincpu", ROMREGION_ERASEFF ) - ROM_SYSTEM_BIOS(0, "v11", "BASIC v1.1") - ROMX_LOAD( "vg5k11.bin", 0x0000, 0x4000, CRC(a6f4a0ea) SHA1(58eccce33cc21fc17bc83921018f531b8001eda3), ROM_BIOS(0) ) // dumped from a Philips VG-5000. - ROM_SYSTEM_BIOS(1, "v10", "BASIC v1.0") - ROMX_LOAD( "vg5k10.bin", 0x0000, 0x4000, BAD_DUMP CRC(57983260) SHA1(5ad1787a6a597b5c3eedb7c3704b649faa9be4ca), ROM_BIOS(1) ) - - ROM_REGION( 0x4000, "ef9345", 0 ) - ROM_LOAD( "charset.rom", 0x0000, 0x2000, BAD_DUMP CRC(b2f49eb3) SHA1(d0ef530be33bfc296314e7152302d95fdf9520fc) ) // from dcvg5k -ROM_END - -/* Driver */ -// YEAR NAME PARENT COMPAT MACHINE INPUT CLASS INIT COMPANY FULLNAME FLAGS -COMP( 1984, vg5k, 0, 0, vg5k, vg5k, vg5k_state, init_vg5k, "Philips", "VG-5000", MACHINE_SUPPORTS_SAVE | MACHINE_NOT_WORKING ) |