diff options
Diffstat (limited to 'src/mame/drivers/jupace.cpp')
-rw-r--r-- | src/mame/drivers/jupace.cpp | 845 |
1 files changed, 0 insertions, 845 deletions
diff --git a/src/mame/drivers/jupace.cpp b/src/mame/drivers/jupace.cpp deleted file mode 100644 index 89fd060eaca..00000000000 --- a/src/mame/drivers/jupace.cpp +++ /dev/null @@ -1,845 +0,0 @@ -// license:BSD-3-Clause -// copyright-holders:Curt Coder, Robbbert -/*************************************************************************** -Jupiter Ace memory map - - CPU: Z80 - 0000-1fff ROM - 2000-23ff Mirror of 2400-27FF - 2400-27ff RAM (1K RAM used for screen and edit/cassette buffer) - 2800-2bff Mirror of 2C00-2FFF - 2c00-2fff RAM (1K RAM for char set, write only) - 3000-3bff Mirror of 3C00-3FFF - 3c00-3fff RAM (1K RAM standard) - 4000-7fff RAM (16K Expansion) - 8000-ffff RAM (48K Expansion) - -Interrupts: - - IRQ: - 50Hz vertical sync - -Ports: - - Out 0xfe: - Tape and buzzer - - In 0xfe: - Keyboard input, tape, and buzzer - - http://www.jupiter-ace.co.uk/ - -***************************************************************************/ - -/* - - TODO: - - - Ace Colour Board - - 96K ram expansion - - Deep Thought disc interface (6850, 6821) - -*/ - - -#include "emu.h" -#include "cpu/z80/z80.h" -#include "imagedev/cassette.h" -#include "imagedev/snapquik.h" -#include "bus/centronics/ctronics.h" -#include "machine/i8255.h" -#include "machine/ram.h" -#include "machine/timer.h" -#include "machine/z80pio.h" -#include "sound/ay8910.h" -#include "sound/sp0256.h" -#include "sound/spkrdev.h" - -#include "emupal.h" -#include "screen.h" -#include "softlist.h" -#include "speaker.h" - -#include "formats/ace_tap.h" - - -#define Z80_TAG "z0" -#define AY8910_TAG "ay8910" -#define I8255_TAG "i8255" -#define SP0256AL2_TAG "ic1" -#define Z80PIO_TAG "z80pio" -#define CENTRONICS_TAG "centronics" -#define SCREEN_TAG "screen" - -class ace_state : public driver_device -{ -public: - ace_state(const machine_config &mconfig, device_type type, const char *tag) - : driver_device(mconfig, type, tag) - , m_maincpu(*this, Z80_TAG) - , m_ppi(*this, I8255_TAG) - , m_z80pio(*this, Z80PIO_TAG) - , m_speaker(*this, "speaker") - , m_cassette(*this, "cassette") - , m_centronics(*this, CENTRONICS_TAG) - , m_ram(*this, RAM_TAG) - , m_sp0256(*this, SP0256AL2_TAG) - , m_video_ram(*this, "video_ram") - , m_char_ram(*this, "char_ram") - , m_a8(*this, "A8") - , m_a9(*this, "A9") - , m_a10(*this, "A10") - , m_a11(*this, "A11") - , m_a12(*this, "A12") - , m_a13(*this, "A13") - , m_a14(*this, "A14") - , m_a15(*this, "A15") - , m_joy(*this, "JOY") - { } - - void ace(machine_config &config); - -private: - virtual void machine_start() override; - - uint32_t screen_update(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect); - - DECLARE_READ8_MEMBER( io_r ); - DECLARE_WRITE8_MEMBER( io_w ); - DECLARE_READ8_MEMBER( ppi_pa_r ); - DECLARE_WRITE8_MEMBER( ppi_pa_w ); - DECLARE_READ8_MEMBER( ppi_pb_r ); - DECLARE_WRITE8_MEMBER( ppi_pb_w ); - DECLARE_READ8_MEMBER( ppi_pc_r ); - DECLARE_WRITE8_MEMBER( ppi_pc_w ); - DECLARE_READ8_MEMBER( ppi_control_r ); - DECLARE_WRITE8_MEMBER( ppi_control_w ); - DECLARE_READ8_MEMBER( pio_pa_r ); - DECLARE_WRITE8_MEMBER( pio_pa_w ); - - TIMER_DEVICE_CALLBACK_MEMBER(set_irq); - TIMER_DEVICE_CALLBACK_MEMBER(clear_irq); - DECLARE_READ8_MEMBER(pio_ad_r); - DECLARE_READ8_MEMBER(pio_bd_r); - DECLARE_READ8_MEMBER(pio_ac_r); - DECLARE_READ8_MEMBER(pio_bc_r); - DECLARE_WRITE8_MEMBER(pio_ad_w); - DECLARE_WRITE8_MEMBER(pio_bd_w); - DECLARE_WRITE8_MEMBER(pio_ac_w); - DECLARE_WRITE8_MEMBER(pio_bc_w); - DECLARE_READ8_MEMBER(sby_r); - DECLARE_WRITE8_MEMBER(ald_w); - DECLARE_SNAPSHOT_LOAD_MEMBER(snapshot_cb); - - void ace_io(address_map &map); - void ace_mem(address_map &map); - - required_device<cpu_device> m_maincpu; - required_device<i8255_device> m_ppi; - required_device<z80pio_device> m_z80pio; - required_device<speaker_sound_device> m_speaker; - required_device<cassette_image_device> m_cassette; - required_device<centronics_device> m_centronics; - required_device<ram_device> m_ram; - required_device<sp0256_device> m_sp0256; - required_shared_ptr<uint8_t> m_video_ram; - required_shared_ptr<uint8_t> m_char_ram; - required_ioport m_a8; - required_ioport m_a9; - required_ioport m_a10; - required_ioport m_a11; - required_ioport m_a12; - required_ioport m_a13; - required_ioport m_a14; - required_ioport m_a15; - required_ioport m_joy; -}; - - -/* Load in .ace files. These are memory images of 0x2000 to 0x7fff - and compressed as follows: - - ED 00 : End marker - ED <cnt> <byt> : repeat <byt> count <cnt:1-240> times - <byt> : <byt> -*/ - -/****************************************************************************** - Snapshot Handling -******************************************************************************/ - -SNAPSHOT_LOAD_MEMBER(ace_state::snapshot_cb) -{ - cpu_device *cpu = m_maincpu; - uint8_t *RAM = memregion(cpu->tag())->base(); - address_space &space = cpu->space(AS_PROGRAM); - unsigned char ace_repeat, ace_byte, loop; - int done=0, ace_index=0x2000; - - if (m_ram->size() < 16*1024) - { - image.seterror(IMAGE_ERROR_INVALIDIMAGE, "At least 16KB RAM expansion required"); - image.message("At least 16KB RAM expansion required"); - return image_init_result::FAIL; - } - - logerror("Loading file %s.\r\n", image.filename()); - while (!done && (ace_index < 0x8001)) - { - image.fread( &ace_byte, 1); - if (ace_byte == 0xed) - { - image.fread(&ace_byte, 1); - switch (ace_byte) - { - case 0x00: - logerror("File loaded!\r\n"); - done = 1; - break; - case 0x01: - image.fread(&ace_byte, 1); - RAM[ace_index++] = ace_byte; - break; - default: - image.fread(&ace_repeat, 1); - for (loop = 0; loop < ace_byte; loop++) - RAM[ace_index++] = ace_repeat; - break; - } - } - else - RAM[ace_index++] = ace_byte; - } - - logerror("Decoded %X bytes.\r\n", ace_index-0x2000); - - if (!done) - { - image.seterror(IMAGE_ERROR_INVALIDIMAGE, "EOF marker not found"); - image.message("EOF marker not found"); - return image_init_result::FAIL; - } - - // patch CPU registers - // Some games do not follow the standard, and have rubbish in the CPU area. So, - // we check that some other bytes are correct. - // 2080 = memory size of original machine, should be 0000 or 8000 or C000. - // 2118 = new stack pointer, do not use if between 8000 and FF00. - - ace_index = RAM[0x2080] | (RAM[0x2081] << 8); - - if ((ace_index & 0x3FFF)==0) - { - cpu->set_state_int(Z80_AF, RAM[0x2100] | (RAM[0x2101] << 8)); - cpu->set_state_int(Z80_BC, RAM[0x2104] | (RAM[0x2105] << 8)); - cpu->set_state_int(Z80_DE, RAM[0x2108] | (RAM[0x2109] << 8)); - cpu->set_state_int(Z80_HL, RAM[0x210c] | (RAM[0x210d] << 8)); - cpu->set_state_int(Z80_IX, RAM[0x2110] | (RAM[0x2111] << 8)); - cpu->set_state_int(Z80_IY, RAM[0x2114] | (RAM[0x2115] << 8)); - cpu->set_pc(RAM[0x211c] | (RAM[0x211d] << 8)); - cpu->set_state_int(Z80_AF2, RAM[0x2120] | (RAM[0x2121] << 8)); - cpu->set_state_int(Z80_BC2, RAM[0x2124] | (RAM[0x2125] << 8)); - cpu->set_state_int(Z80_DE2, RAM[0x2128] | (RAM[0x2129] << 8)); - cpu->set_state_int(Z80_HL2, RAM[0x212c] | (RAM[0x212d] << 8)); - cpu->set_state_int(Z80_IM, RAM[0x2130]); - cpu->set_state_int(Z80_IFF1, RAM[0x2134]); - cpu->set_state_int(Z80_IFF2, RAM[0x2138]); - cpu->set_state_int(Z80_I, RAM[0x213c]); - cpu->set_state_int(Z80_R, RAM[0x2140]); - - if ((RAM[0x2119] < 0x80) || !ace_index) - cpu->set_state_int(STATE_GENSP, RAM[0x2118] | (RAM[0x2119] << 8)); - } - - /* Copy data to the address space */ - for (ace_index = 0x2000; ace_index < 0x8000; ace_index++) - space.write_byte(ace_index, RAM[ace_index]); - - return image_init_result::PASS; -} - -//************************************************************************** -// READ/WRITE HANDLERS -//************************************************************************** - -//------------------------------------------------- -// io_r - -//------------------------------------------------- - -READ8_MEMBER( ace_state::io_r ) -{ - uint8_t data = 0xff; - - if (!BIT(offset, 8)) data &= m_a8->read(); - if (!BIT(offset, 9)) data &= m_a9->read(); - if (!BIT(offset, 10)) data &= m_a10->read(); - if (!BIT(offset, 11)) data &= m_a11->read(); - if (!BIT(offset, 12)) data &= m_a12->read(); - if (!BIT(offset, 13)) data &= m_a13->read(); - if (!BIT(offset, 14)) data &= m_a14->read(); - - if (!BIT(offset, 15)) - { - data &= m_a15->read(); - - m_cassette->output(-1); - m_speaker->level_w(0); - } - - if (m_cassette->input() > 0) - { - data &= ~0x20; - } - - return data; -} - - -//------------------------------------------------- -// io_w - -//------------------------------------------------- - -WRITE8_MEMBER( ace_state::io_w ) -{ - m_cassette->output(1); - m_speaker->level_w(1); -} - - -//------------------------------------------------- -// ppi_r - -//------------------------------------------------- - -READ8_MEMBER( ace_state::ppi_pa_r ) -{ - return m_ppi->read(0); -} - -READ8_MEMBER( ace_state::ppi_pb_r ) -{ - return m_ppi->read(1); -} - -READ8_MEMBER( ace_state::ppi_pc_r ) -{ - return m_ppi->read(2); -} - -READ8_MEMBER( ace_state::ppi_control_r ) -{ - return m_ppi->read(3); -} - - -//------------------------------------------------- -// ppi_w - -//------------------------------------------------- - -WRITE8_MEMBER( ace_state::ppi_pa_w ) -{ - m_ppi->write(0, data); -} - -WRITE8_MEMBER( ace_state::ppi_pb_w ) -{ - m_ppi->write(1, data); -} - -WRITE8_MEMBER( ace_state::ppi_pc_w ) -{ - m_ppi->write(2, data); -} - -WRITE8_MEMBER( ace_state::ppi_control_w ) -{ - m_ppi->write(3, data); -} - - -//------------------------------------------------- -// pio_r - -//------------------------------------------------- - -READ8_MEMBER(ace_state::pio_ad_r) -{ - return m_z80pio->data_read(0); -} - -READ8_MEMBER(ace_state::pio_bd_r) -{ - return m_z80pio->data_read(1); -} - -READ8_MEMBER(ace_state::pio_ac_r) -{ - return m_z80pio->control_read(); -} - -READ8_MEMBER(ace_state::pio_bc_r) -{ - return m_z80pio->control_read(); -} - - -//------------------------------------------------- -// pio_w - -//------------------------------------------------- - -WRITE8_MEMBER(ace_state::pio_ad_w) -{ - m_z80pio->data_write(0, data); -} - -WRITE8_MEMBER(ace_state::pio_bd_w) -{ - m_z80pio->data_write(1, data); -} - -WRITE8_MEMBER(ace_state::pio_ac_w) -{ - m_z80pio->control_write(0, data); -} - -WRITE8_MEMBER(ace_state::pio_bc_w) -{ - m_z80pio->control_write(1, data); -} - - - -//************************************************************************** -// ADDRESS MAPS -//************************************************************************** - -//------------------------------------------------- -// ADDRESS_MAP( ace_mem ) -//------------------------------------------------- - -void ace_state::ace_mem(address_map &map) -{ - map(0x0000, 0x1fff).rom(); - map(0x2000, 0x23ff).mirror(0x0400).ram().share("video_ram"); - map(0x2800, 0x2bff).mirror(0x0400).ram().share("char_ram").region(Z80_TAG, 0xfc00); - map(0x3000, 0x33ff).mirror(0x0c00).ram(); - map(0x4000, 0xffff).ram(); -} - - -//------------------------------------------------- -// ADDRESS_MAP( ace_io ) -//------------------------------------------------- - -void ace_state::ace_io(address_map &map) -{ - map(0x00, 0x00).mirror(0x00fe).select(0xff00).rw(FUNC(ace_state::io_r), FUNC(ace_state::io_w)); - map(0x01, 0x01).mirror(0xff00).portr("JOY"); - map(0x41, 0x41).mirror(0xff80).rw(FUNC(ace_state::ppi_pa_r), FUNC(ace_state::ppi_pa_w)); - map(0x43, 0x43).mirror(0xff80).rw(FUNC(ace_state::ppi_pb_r), FUNC(ace_state::ppi_pb_w)); - map(0x45, 0x45).mirror(0xff80).rw(FUNC(ace_state::ppi_pc_r), FUNC(ace_state::ppi_pc_w)); - map(0x47, 0x47).mirror(0xff80).rw(FUNC(ace_state::ppi_control_r), FUNC(ace_state::ppi_control_w)); - map(0x81, 0x81).mirror(0xff38).rw(FUNC(ace_state::pio_ad_r), FUNC(ace_state::pio_ad_w)); - map(0x83, 0x83).mirror(0xff38).rw(FUNC(ace_state::pio_bd_r), FUNC(ace_state::pio_bd_w)); - map(0x85, 0x85).mirror(0xff38).rw(FUNC(ace_state::pio_ac_r), FUNC(ace_state::pio_ac_w)); - map(0x87, 0x87).mirror(0xff38).rw(FUNC(ace_state::pio_bc_r), FUNC(ace_state::pio_bc_w)); - map(0xfd, 0xfd).mirror(0xff00).w(AY8910_TAG, FUNC(ay8910_device::address_w)); - map(0xff, 0xff).mirror(0xff00).rw(AY8910_TAG, FUNC(ay8910_device::data_r), FUNC(ay8910_device::data_w)); -} - - - -//************************************************************************** -// INPUT PORTS -//************************************************************************** - -//------------------------------------------------- -// INPUT_PORTS( ace ) -//------------------------------------------------- - -static INPUT_PORTS_START( ace ) - PORT_START("A8") - PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_RSHIFT) PORT_CHAR(UCHAR_SHIFT_1) - PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("Symbol Shift") PORT_CODE(KEYCODE_LSHIFT) PORT_CHAR(UCHAR_SHIFT_2) - PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_Z) PORT_CHAR('z') PORT_CHAR('Z') PORT_CHAR(':') - PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_X) PORT_CHAR('x') PORT_CHAR('X') PORT_CHAR(0xA3) - PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_C) PORT_CHAR('c') PORT_CHAR('C') PORT_CHAR('?') - PORT_BIT( 0xe0, IP_ACTIVE_LOW, IPT_UNUSED ) - - PORT_START("A9") - PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_A) PORT_CHAR('a') PORT_CHAR('A') PORT_CHAR('~') - PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_S) PORT_CHAR('s') PORT_CHAR('S') PORT_CHAR('|') - PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_D) PORT_CHAR('d') PORT_CHAR('D') PORT_CHAR('\\') - PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_F) PORT_CHAR('f') PORT_CHAR('F') PORT_CHAR('{') - PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_G) PORT_CHAR('g') PORT_CHAR('G') PORT_CHAR('}') - PORT_BIT( 0xe0, IP_ACTIVE_LOW, IPT_UNUSED ) - - PORT_START("A10") - PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_Q) PORT_CHAR('q') PORT_CHAR('Q') - PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_W) PORT_CHAR('w') PORT_CHAR('W') - PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_E) PORT_CHAR('e') PORT_CHAR('E') - PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_R) PORT_CHAR('r') PORT_CHAR('R') PORT_CHAR('<') - PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_T) PORT_CHAR('t') PORT_CHAR('T') PORT_CHAR('>') - PORT_BIT( 0xe0, IP_ACTIVE_LOW, IPT_UNUSED ) - - PORT_START("A11") - PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_1) PORT_CHAR('1') PORT_CHAR('!') - PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_2) PORT_CHAR('2') PORT_CHAR('@') - PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_3) PORT_CHAR('3') PORT_CHAR('#') - PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_4) PORT_CHAR('4') PORT_CHAR('$') - PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_5) PORT_CODE(KEYCODE_LEFT) PORT_CHAR('5') PORT_CHAR('%') - PORT_BIT( 0xe0, IP_ACTIVE_LOW, IPT_UNUSED ) - - PORT_START("A12") - PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_0) PORT_CHAR('0') PORT_CHAR('_') - PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_9) PORT_CHAR('9') PORT_CHAR(')') - PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_8) PORT_CODE(KEYCODE_RIGHT) PORT_CHAR('8') PORT_CHAR('(') - PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_7) PORT_CODE(KEYCODE_DOWN) PORT_CHAR('7') PORT_CHAR('\'') - PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_6) PORT_CODE(KEYCODE_UP) PORT_CHAR('6') PORT_CHAR('&') - PORT_BIT( 0xe0, IP_ACTIVE_LOW, IPT_UNUSED ) - - PORT_START("A13") - PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_P) PORT_CHAR('p') PORT_CHAR('P') PORT_CHAR('"') - PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_O) PORT_CHAR('o') PORT_CHAR('O') PORT_CHAR(';') - PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_I) PORT_CHAR('i') PORT_CHAR('I') PORT_CHAR(0x00A9) - PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_U) PORT_CHAR('u') PORT_CHAR('U') PORT_CHAR(']') - PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_Y) PORT_CHAR('y') PORT_CHAR('Y') PORT_CHAR('[') - PORT_BIT( 0xe0, IP_ACTIVE_LOW, IPT_UNUSED ) - - PORT_START("A14") - PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_ENTER) PORT_CHAR(13) - PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_L) PORT_CHAR('l') PORT_CHAR('L') PORT_CHAR('=') - PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_K) PORT_CHAR('k') PORT_CHAR('K') PORT_CHAR('+') - PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_J) PORT_CHAR('j') PORT_CHAR('J') PORT_CHAR('-') - PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("h H \xE2\x86\x91") PORT_CODE(KEYCODE_H) PORT_CHAR('h') PORT_CHAR('H') - PORT_BIT( 0xe0, IP_ACTIVE_LOW, IPT_UNUSED ) - - PORT_START("A15") - PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_SPACE) PORT_CHAR(' ') - PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_M) PORT_CHAR('m') PORT_CHAR('M') PORT_CHAR('.') - PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_N) PORT_CHAR('n') PORT_CHAR('N') PORT_CHAR(',') - PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_B) PORT_CHAR('b') PORT_CHAR('B') PORT_CHAR('*') - PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_V) PORT_CHAR('v') PORT_CHAR('V') PORT_CHAR('/') - PORT_BIT( 0xe0, IP_ACTIVE_LOW, IPT_UNUSED ) - - PORT_START("JOY") - PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_JOYSTICK_UP ) - PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_JOYSTICK_DOWN ) - PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_JOYSTICK_RIGHT ) - PORT_BIT( 0x08, IP_ACTIVE_HIGH, IPT_JOYSTICK_LEFT ) - PORT_BIT( 0x10, IP_ACTIVE_HIGH, IPT_UNUSED ) - PORT_BIT( 0x20, IP_ACTIVE_HIGH, IPT_BUTTON1 ) - PORT_BIT( 0x40, IP_ACTIVE_HIGH, IPT_UNUSED ) - PORT_BIT( 0x80, IP_ACTIVE_HIGH, IPT_UNUSED ) -INPUT_PORTS_END - - - -//************************************************************************** -// VIDEO -//************************************************************************** - -//------------------------------------------------- -// gfx_layout ace_charlayout -//------------------------------------------------- - -static const gfx_layout ace_charlayout = -{ - 8,8, - 128, - 1, - { RGN_FRAC(0,1) }, - { STEP8(0,1) }, - { STEP8(0,8) }, - 8*8 -}; - - -//------------------------------------------------- -// GFXDECODE( ace ) -//------------------------------------------------- - -static GFXDECODE_START( gfx_ace ) - GFXDECODE_ENTRY( Z80_TAG, 0xfc00, ace_charlayout, 0, 1 ) -GFXDECODE_END - - -//------------------------------------------------- -// TIMER_DEVICE_CALLBACK_MEMBER( set_irq ) -//------------------------------------------------- - -TIMER_DEVICE_CALLBACK_MEMBER(ace_state::set_irq) -{ - m_maincpu->set_input_line(INPUT_LINE_IRQ0, ASSERT_LINE); -} - - -//------------------------------------------------- -// TIMER_DEVICE_CALLBACK_MEMBER( clear_irq ) -//------------------------------------------------- - -TIMER_DEVICE_CALLBACK_MEMBER(ace_state::clear_irq) -{ - m_maincpu->set_input_line(INPUT_LINE_IRQ0, CLEAR_LINE); -} - - -uint32_t ace_state::screen_update(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect) -{ - uint8_t y,ra,chr,gfx; - uint16_t sy=56,ma=0,x; - - for (y = 0; y < 24; y++) - { - for (ra = 0; ra < 8; ra++) - { - uint16_t *p = &bitmap.pix16(sy++, 40); - - for (x = ma; x < ma+32; x++) - { - chr = m_video_ram[x]; - - /* get pattern of pixels for that character scanline */ - gfx = m_char_ram[((chr&0x7f)<<3) | ra] ^ (BIT(chr, 7) ? 0xff : 0); - - /* Display a scanline of a character (8 pixels) */ - *p++ = BIT(gfx, 7); - *p++ = BIT(gfx, 6); - *p++ = BIT(gfx, 5); - *p++ = BIT(gfx, 4); - *p++ = BIT(gfx, 3); - *p++ = BIT(gfx, 2); - *p++ = BIT(gfx, 1); - *p++ = BIT(gfx, 0); - } - } - ma+=32; - } - return 0; -} - - - -//************************************************************************** -// DEVICE CONFIGURATION -//************************************************************************** - -//------------------------------------------------- -// I8255A interface -//------------------------------------------------- - -READ8_MEMBER(ace_state::sby_r) -{ - /* - - bit description - - PC0 SP0256 SBY - PC1 - PC2 - PC3 - PC4 - PC5 - PC6 - PC7 - - */ - - return m_sp0256->sby_r(); -} - -WRITE8_MEMBER(ace_state::ald_w) -{ - /* - - bit description - - PA0 SP0256 A1 - PA1 SP0256 A2 - PA2 SP0256 A3 - PA3 SP0256 A4 - PA4 SP0256 A5 - PA5 SP0256 A6 - PA6 SP0256 _ALD - PA7 - - */ - - if (!BIT(data, 6)) - { - m_sp0256->ald_w(data & 0x3f); - } -} - -//------------------------------------------------- -// Z80PIO -//------------------------------------------------- - -READ8_MEMBER( ace_state::pio_pa_r ) -{ - /* - - bit description - - PA0 - PA1 RxD - PA2 - PA3 - PA4 - PA5 - PA6 - PA7 - - */ - - return 0; -} - -WRITE8_MEMBER( ace_state::pio_pa_w ) -{ - /* - - bit description - - PA0 RTS - PA1 - PA2 CTS - PA3 TxD - PA4 - PA5 - PA6 STB - PA7 - - */ - - // centronics strobe - m_centronics->write_strobe(!BIT(data, 6)); -} - -//************************************************************************** -// MACHINE INITIALIZATION -//************************************************************************** - -//------------------------------------------------- -// MACHINE_START( ace ) -//------------------------------------------------- - -void ace_state::machine_start() -{ - address_space &program = m_maincpu->space(AS_PROGRAM); - - /* configure RAM */ - switch (m_ram->size()) - { - case 1*1024: - program.unmap_readwrite(0x4000, 0xffff); - break; - - case 16*1024: - program.unmap_readwrite(0x8000, 0xffff); - break; - - case 32*1024: - program.unmap_readwrite(0xc000, 0xffff); - break; - } -} - - - -//************************************************************************** -// MACHINE CONFIGURATION -//************************************************************************** - -//------------------------------------------------- -// machine_config( ace ) -//------------------------------------------------- - -void ace_state::ace(machine_config &config) -{ - // basic machine hardware - Z80(config, m_maincpu, XTAL(6'500'000)/2); - m_maincpu->set_addrmap(AS_PROGRAM, &ace_state::ace_mem); - m_maincpu->set_addrmap(AS_IO, &ace_state::ace_io); - config.set_maximum_quantum(attotime::from_hz(60)); - - // video hardware - screen_device &screen(SCREEN(config, SCREEN_TAG, SCREEN_TYPE_RASTER)); - screen.set_screen_update(FUNC(ace_state::screen_update)); - screen.set_raw(XTAL(6'500'000), 416, 0, 336, 312, 0, 304); - screen.set_palette("palette"); - - TIMER(config, "set_irq").configure_scanline(FUNC(ace_state::set_irq), SCREEN_TAG, 31*8, 264); - TIMER(config, "clear_irq").configure_scanline(FUNC(ace_state::clear_irq), SCREEN_TAG, 32*8, 264); - - PALETTE(config, "palette", palette_device::MONOCHROME); - - GFXDECODE(config, "gfxdecode", "palette", gfx_ace); - - // sound hardware - SPEAKER(config, "mono").front_center(); - SPEAKER_SOUND(config, "speaker").add_route(ALL_OUTPUTS, "mono", 1.00); - - AY8910(config, AY8910_TAG, XTAL(6'500'000) / 2).add_route(ALL_OUTPUTS, "mono", 0.25); - - SP0256(config, m_sp0256, XTAL(3'000'000)); - m_sp0256->add_route(ALL_OUTPUTS, "mono", 0.25); - - // devices - CASSETTE(config, m_cassette); - m_cassette->set_formats(ace_cassette_formats); - m_cassette->set_default_state(CASSETTE_STOPPED); - m_cassette->add_route(ALL_OUTPUTS, "mono", 0.05); - m_cassette->set_interface("jupace_cass"); - - SNAPSHOT(config, "snapshot", "ace", attotime::from_seconds(1)).set_load_callback(FUNC(ace_state::snapshot_cb)); - - I8255A(config, m_ppi); - m_ppi->in_pb_callback().set(FUNC(ace_state::sby_r)); - m_ppi->out_pb_callback().set(FUNC(ace_state::ald_w)); - - Z80PIO(config, m_z80pio, XTAL(6'500'000)/2); - m_z80pio->out_int_callback().set_inputline(m_maincpu, INPUT_LINE_IRQ0); - m_z80pio->in_pa_callback().set(FUNC(ace_state::pio_pa_r)); - m_z80pio->out_pa_callback().set(FUNC(ace_state::pio_pa_w)); - m_z80pio->out_pb_callback().set("cent_data_out", FUNC(output_latch_device::bus_w)); - - CENTRONICS(config, m_centronics, centronics_devices, "printer"); - - output_latch_device ¢_data_out(OUTPUT_LATCH(config, "cent_data_out")); - m_centronics->set_output_latch(cent_data_out); - - // internal ram - RAM(config, RAM_TAG).set_default_size("1K").set_extra_options("16K,32K,48K"); - - SOFTWARE_LIST(config, "cass_list").set_original("jupace_cass"); -} - - - -//************************************************************************** -// ROMS -//************************************************************************** - -//------------------------------------------------- -// ROM( ace ) -//------------------------------------------------- - -ROM_START( jupace ) - ROM_REGION( 0x10000, Z80_TAG, 0 ) - ROM_LOAD( "rom-a.z1", 0x0000, 0x1000, CRC(dc8438a5) SHA1(8fa97eb71e5dd17c7d190c6587ee3840f839347c) ) - ROM_LOAD( "rom-b.z2", 0x1000, 0x1000, CRC(4009f636) SHA1(98c5d4bcd74bcf014268cf4c00b2007ea5cc21f3) ) - - ROM_REGION( 0x1000, "fdc", 0 ) // Deep Thought disc interface - ROM_LOAD( "dos 4.bin", 0x0000, 0x1000, CRC(04c70448) SHA1(53ddcced6ae2feafd687a3b55864726656b71412) ) - - ROM_REGION( 0x10000, SP0256AL2_TAG, 0 ) - ROM_LOAD( "sp0256-al2.ic1", 0x000, 0x800, CRC(b504ac15) SHA1(e60fcb5fa16ff3f3b69d36c7a6e955744d3feafc) ) -ROM_END - - - -//************************************************************************** -// SYSTEM DRIVERS -//************************************************************************** - -// YEAR NAME PARENT COMPAT MACHINE INPUT CLASS INIT COMPANY FULLNAME FLAGS -COMP( 1981, jupace, 0, 0, ace, ace, ace_state, empty_init, "Jupiter Cantab", "Jupiter Ace", 0 ) |