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Diffstat (limited to 'src/mame/drivers/spc1000.cpp')
-rw-r--r-- | src/mame/drivers/spc1000.cpp | 530 |
1 files changed, 0 insertions, 530 deletions
diff --git a/src/mame/drivers/spc1000.cpp b/src/mame/drivers/spc1000.cpp deleted file mode 100644 index f7bde1b2acc..00000000000 --- a/src/mame/drivers/spc1000.cpp +++ /dev/null @@ -1,530 +0,0 @@ -// license:BSD-3-Clause -// copyright-holders:Miodrag Milanovic, Robbbert -/*************************************************************************** - -Samsung SPC-1000 driver by Miodrag Milanovic - -2009-05-10 Preliminary driver. -2014-02-16 Added cassette, many games are playable - -ToDo: -- Find out if any of the unconnected parts of 6000,4000,4001 are used - - -Hardware details of the fdc: Intelligent device, Z80 CPU, -XTAL(8'000'000), PPI 8255, FDC uPD765C, 2 RAM chips, 28 other -small ics. - -2014-10-11: Added code for the floppy disk [Meeso Kim] - -2015-06-19: Added code for the centronics printer port - -2016-01-14: Cassette tape motor fixed to work properly and ROM file changed for CP/M disk loading - -****************************************************************************/ -/* - * SAMSUNG SPC-1000 Series (info from zannylim) - * - * YEAR MODEL MainVideo PRT FDD - * ---- -------------- ------ ----- ------ ------- - * 1982 SPC-1000 S68047 RGB buffer - - * 1983 SPC-1000 S68047 RF-TV buffer - - * 1983 SPC-1100 S68047 RF-TV - - - * 1983 SPC-1000/1100 MC6847 RF-TV direct support - * 1985 SPC-1000A MC6847 RF-TV direct support - * - * 2nd Video Display Processor type 1 : VDP UNIT (TMS9918 + 4KB VRAM) by staticsoft - * 2nd Video Display Processor type 2 : SOFT BOX (TMS9918 + 4KB VRAM with BIOS) by sammi computer - * - * Intelligence FDD : SD-725(2FDD, RS232C), SD-720(1FDD), SD-725A(2FDD), SD-725B(Desktop 2FDD, RS232C) - EPSON TF20 F100 - * External FDD with Expansion slot : KWE-1000 by kyungwoo - * - * Network device : ISAM-1000 by samsung - * - * +---------PRT------RGB----TVRF--+ SPC-1000 - * + + - * + ROM0 + CPU : Z80A (4MHz) - * + ROM1 + RAM : 64KB - * +-------+ ROM2 AY-3-8910 + VRAM : 6KB - * + SPC-1000 + VDG : AMI S68047 with TTL RGB output - * IPL + PSG : AY-3-8910 - * RESET S68047 + - * + Z80A + Include Internal Data-recorder - * + ROM3 + - * + + ROM : 32KB (8KB x 4) - * +---------------------------------------+ - * - * +---------PRT----VIDEO----TVRF--+ SPC-1000 - * + + - * + ROM0 LM1889 + Support RF TV Support, but Removed RGB output - * + ROM1 + - * +-------+ ROM2 AY-3-8910 SPC-1000 + - * + 1100 + - * IPL + - * RESET S68047 + - * + Z80A + - * + ROM3 + - * + + - * +---------------------------------------+ - * - * +----------------VIDEO----TVRF--+ SPC-1100 - * + + - * + ROM0 LM1889 + Removed Printer port - * + ROM1 LM386(5V) + - * +-------+ ROM2 AY-3-8910 SPC-1000 + - * + 1100 + - * IPL + - * RESET S68047 + - * + Z80A + - * + ROM3 + - * + + - * +---------------------------------------+ - * - * +---------PRT----VIDEO----TVRF--+ SPC-1000, SPC-1100 - * + + - * + ROM0 MC1372 + New Video Display Generator : MC6847 - * + ROM1 LM386(5V) + - * +-------+ ROM2 AY-3-8910 + - * + ROM3 SPC-1000/1100 + - * IPL + - * RESET MC6847 + - * + Z80A + - * + + - * + + - * +---------------------------------------+ - * - * +---------PRT----VIDEO----TVRF--+ SPC-1000, SPC-1100 - * + + - * + ROM0 S4 MC1372 + REV PCB No.839291 - * + ROM1 LM386(5V) + - * +-------+ ROM2 AY-3-8910 + Add composite color on/off switch - * + ROM3 SPC-1000/1100 + - * IPL + - * RESET MC6847 + - * + Z80A + - * + + - * + + - * +---------------------------------------+ - * - * +---------PRT----VIDEO----TVRF--+ SPC-1000A - * + + - * + ROM0 S4 MC1372 + Internal Data-recorder with Cassette Audio Player - * + ROM1 LM386(12V) + Add FDD auto detect - * +-------+ ROM2 AY-3-8910 + Remove IPL button - * + SPC-1000A ROM3 + Change DRAM refresh circuit - * IPL + Use 64K DRAM made by Samsung - * + MC6847 + Use TTL IC made by Goldstar - * + Z80A + - * + + - * + + - * +---------------------------------------+ - * - */ - -#include "emu.h" - -#include "cpu/z80/z80.h" -#include "imagedev/cassette.h" -#include "machine/ram.h" -#include "sound/ay8910.h" -#include "video/mc6847.h" - -#include "bus/centronics/ctronics.h" -#include "bus/spc1000/exp.h" -#include "bus/spc1000/fdd.h" -#include "bus/spc1000/vdp.h" - -#include "softlist.h" -#include "speaker.h" - -#include "formats/spc1000_cas.h" - - -class spc1000_state : public driver_device -{ -public: - spc1000_state(const machine_config &mconfig, device_type type, const char *tag) - : driver_device(mconfig, type, tag) - , m_maincpu(*this, "maincpu") - , m_vdg(*this, "mc6847") - , m_cass(*this, "cassette") - , m_ram(*this, RAM_TAG) - , m_p_videoram(*this, "videoram") - , m_io_kb(*this, "LINE.%u", 0) - , m_io_joy(*this, "JOY") - , m_centronics(*this, "centronics") - {} - - void spc1000(machine_config &config); - -private: - DECLARE_WRITE8_MEMBER(iplk_w); - DECLARE_READ8_MEMBER(iplk_r); - DECLARE_WRITE_LINE_MEMBER(irq_w); - DECLARE_WRITE8_MEMBER(gmode_w); - DECLARE_READ8_MEMBER(gmode_r); - DECLARE_READ8_MEMBER(porta_r); - DECLARE_WRITE_LINE_MEMBER( centronics_busy_w ) { m_centronics_busy = state; } - DECLARE_READ8_MEMBER(mc6847_videoram_r); - DECLARE_WRITE8_MEMBER(cass_w); - DECLARE_READ8_MEMBER(keyboard_r); - MC6847_GET_CHARROM_MEMBER(get_char_rom) - { - return m_p_videoram[0x1000 + (ch & 0x7f) * 16 + line]; - } - - void spc1000_io(address_map &map); - void spc1000_mem(address_map &map); - - uint8_t m_IPLK; - uint8_t m_GMODE; - uint16_t m_page; - std::unique_ptr<uint8_t[]> m_work_ram; - attotime m_time; - bool m_centronics_busy; - virtual void machine_start() override; - virtual void machine_reset() override; - required_device<z80_device> m_maincpu; - required_device<mc6847_base_device> m_vdg; - required_device<cassette_image_device> m_cass; - required_device<ram_device> m_ram; - required_shared_ptr<uint8_t> m_p_videoram; - required_ioport_array<10> m_io_kb; - required_ioport m_io_joy; - required_device<centronics_device> m_centronics; -}; - -void spc1000_state::spc1000_mem(address_map &map) -{ - map.unmap_value_high(); - map(0x0000, 0x7fff).bankr("bank1").bankw("bank2"); - map(0x8000, 0xffff).bankr("bank3").bankw("bank4"); -} - -WRITE8_MEMBER(spc1000_state::iplk_w) -{ - m_IPLK = m_IPLK ? 0 : 1; - membank("bank1")->set_entry(m_IPLK); - membank("bank3")->set_entry(m_IPLK); -} - -READ8_MEMBER(spc1000_state::iplk_r) -{ - m_IPLK = m_IPLK ? 0 : 1; - membank("bank1")->set_entry(m_IPLK); - membank("bank3")->set_entry(m_IPLK); - - return 0; -} - -WRITE8_MEMBER( spc1000_state::cass_w ) -{ - attotime time = machine().scheduler().time(); - m_cass->output(BIT(data, 0) ? -1.0 : 1.0); - if (BIT(data, 1) || (((time - m_time).as_attoseconds()/ATTOSECONDS_PER_MILLISECOND) < 1000)) - { - m_cass->change_state(CASSETTE_MOTOR_ENABLED, CASSETTE_MASK_MOTOR); - m_time = time; - } - else - m_cass->change_state(CASSETTE_MOTOR_DISABLED, CASSETTE_MASK_MOTOR); - - m_centronics->write_strobe(BIT(data, 2) ? true : false); -} - -WRITE8_MEMBER(spc1000_state::gmode_w) -{ - m_GMODE = data; - - // m_GMODE layout: CSS|NA|PS2|PS1|~A/G|GM0|GM1|NA - // [PS2,PS1] is used to set screen 0/1 pages - m_vdg->gm1_w(BIT(data, 1)); - m_vdg->gm0_w(BIT(data, 2)); - m_vdg->ag_w(BIT(data, 3)); - m_vdg->css_w(BIT(data, 7)); - m_page = ((BIT(data, 5) << 1) | BIT(data, 4)) * 0x200; -} - -READ8_MEMBER(spc1000_state::gmode_r) -{ - return m_GMODE; -} - -READ8_MEMBER( spc1000_state::keyboard_r ) -{ - // most games just read kb in $8000-$8009 but a few of them - // (e.g. Toiler Adventure II and Vela) use mirrored addr instead - offset &= 0xf; - - if (offset <= 9) - return m_io_kb[offset]->read(); - else - return 0xff; -} - - -void spc1000_state::spc1000_io(address_map &map) -{ - map.unmap_value_high(); - map(0x0000, 0x1fff).ram().share("videoram"); - map(0x2000, 0x3fff).rw(FUNC(spc1000_state::gmode_r), FUNC(spc1000_state::gmode_w)); - map(0x4000, 0x4000).w("ay8910", FUNC(ay8910_device::address_w)); - map(0x4001, 0x4001).rw("ay8910", FUNC(ay8910_device::data_r), FUNC(ay8910_device::data_w)); - map(0x6000, 0x6000).w(FUNC(spc1000_state::cass_w)); - map(0x8000, 0x9fff).r(FUNC(spc1000_state::keyboard_r)); - map(0xa000, 0xa000).rw(FUNC(spc1000_state::iplk_r), FUNC(spc1000_state::iplk_w)); - map(0xc000, 0xdfff).rw("ext1", FUNC(spc1000_exp_device::read), FUNC(spc1000_exp_device::write)); -} - -/* Input ports */ -static INPUT_PORTS_START( spc1000 ) - PORT_START("LINE.0") - PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_UNUSED) - PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Shift") PORT_CODE(KEYCODE_RSHIFT) PORT_CODE(KEYCODE_LSHIFT) PORT_CHAR(UCHAR_SHIFT_1) - PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Ctrl") PORT_CODE(KEYCODE_RCONTROL) PORT_CODE(KEYCODE_LCONTROL) PORT_CHAR(UCHAR_SHIFT_2) - PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_UNUSED) - PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Break") PORT_CODE(KEYCODE_PAUSE) - PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_UNUSED) - PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Graph") PORT_CODE(KEYCODE_LALT) PORT_CODE(KEYCODE_RALT) - PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_UNUSED) - - PORT_START("LINE.1") - PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("^ ~") PORT_CODE(KEYCODE_TILDE) PORT_CHAR('^') PORT_CHAR('~') PORT_CHAR(0x1e) - PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Home") PORT_CODE(KEYCODE_HOME) - PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Space") PORT_CODE(KEYCODE_SPACE) PORT_CHAR(' ') - PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Return") PORT_CODE(KEYCODE_ENTER) PORT_CHAR(13) - PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("C") PORT_CODE(KEYCODE_C) PORT_CHAR('c') PORT_CHAR('C') PORT_CHAR(0x03) - PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("A") PORT_CODE(KEYCODE_A) PORT_CHAR('a') PORT_CHAR('A') PORT_CHAR(0x01) - PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Q") PORT_CODE(KEYCODE_Q) PORT_CHAR('q') PORT_CHAR('Q') PORT_CHAR(0x16) - PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("1 !") PORT_CODE(KEYCODE_1) PORT_CHAR('1') PORT_CHAR('!') - - PORT_START("LINE.2") - PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Caps") PORT_CODE(KEYCODE_CAPSLOCK) - PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_UNUSED) - PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Z") PORT_CODE(KEYCODE_Z) PORT_CHAR('z') PORT_CHAR('Z') PORT_CHAR(0x1a) - PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("] }") PORT_CODE(KEYCODE_CLOSEBRACE) PORT_CHAR(']') PORT_CHAR('}') PORT_CHAR(0x1d) - PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("V") PORT_CODE(KEYCODE_V) PORT_CHAR('v') PORT_CHAR('V') PORT_CHAR(0x16) - PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("S") PORT_CODE(KEYCODE_S) PORT_CHAR('s') PORT_CHAR('S') PORT_CHAR(0x13) - PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("W") PORT_CODE(KEYCODE_W) PORT_CHAR('w') PORT_CHAR('W') PORT_CHAR(0x17) - PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("2 \"") PORT_CODE(KEYCODE_2) PORT_CHAR('2') PORT_CHAR('\"') - - PORT_START("LINE.3") - PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Del") PORT_CODE(KEYCODE_BACKSPACE) PORT_CHAR(8) PORT_CHAR(0x12) - PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_UNUSED) - PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("ESC") PORT_CODE(KEYCODE_ESC) PORT_CHAR(0x1b) - PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("[ {") PORT_CODE(KEYCODE_OPENBRACE) PORT_CHAR('[') PORT_CHAR('{') PORT_CHAR(0x1b) - PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("B") PORT_CODE(KEYCODE_B) PORT_CHAR('b') PORT_CHAR('B') PORT_CHAR(0x02) - PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("D") PORT_CODE(KEYCODE_D) PORT_CHAR('d') PORT_CHAR('D') PORT_CHAR(0x04) - PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("E") PORT_CODE(KEYCODE_E) PORT_CHAR('e') PORT_CHAR('E') PORT_CHAR(0x05) - PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("3 #") PORT_CODE(KEYCODE_3) PORT_CHAR('3') PORT_CHAR('#') - - PORT_START("LINE.4") - PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_UNUSED) - PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_UNUSED) - PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Right") PORT_CODE(KEYCODE_RIGHT) - PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("\\ |") PORT_CODE(KEYCODE_BACKSLASH) PORT_CHAR('\\') PORT_CHAR('|') PORT_CHAR(0x1c) - PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("N") PORT_CODE(KEYCODE_N) PORT_CHAR('n') PORT_CHAR('N') PORT_CHAR(0x0e) - PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("F") PORT_CODE(KEYCODE_F) PORT_CHAR('f') PORT_CHAR('F') PORT_CHAR(0x06) - PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("R") PORT_CODE(KEYCODE_R) PORT_CHAR('r') PORT_CHAR('R') PORT_CHAR(0x12) - PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("4 $") PORT_CODE(KEYCODE_4) PORT_CHAR('4') PORT_CHAR('$') - - PORT_START("LINE.5") - PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_UNUSED) - PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("F1") PORT_CODE(KEYCODE_F1) - PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Left") PORT_CODE(KEYCODE_LEFT) - PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_UNUSED) - PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("M") PORT_CODE(KEYCODE_M) PORT_CHAR('m') PORT_CHAR('M') PORT_CHAR(0x0d) - PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("G") PORT_CODE(KEYCODE_G) PORT_CHAR('g') PORT_CHAR('G') PORT_CHAR(0x07) - PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("T") PORT_CODE(KEYCODE_T) PORT_CHAR('t') PORT_CHAR('T') PORT_CHAR(0x14) - PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("5 %") PORT_CODE(KEYCODE_5) PORT_CHAR('5') PORT_CHAR('%') - - PORT_START("LINE.6") - PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_UNUSED) - PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("F2") PORT_CODE(KEYCODE_F2) - PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("@ `") PORT_CODE(KEYCODE_EQUALS) PORT_CHAR('@') PORT_CHAR('`') - PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("X") PORT_CODE(KEYCODE_X) PORT_CHAR('x') PORT_CHAR('X') PORT_CHAR(0x18) - PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME(", <") PORT_CODE(KEYCODE_COMMA) PORT_CHAR(',') PORT_CHAR('<') - PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("H") PORT_CODE(KEYCODE_H) PORT_CHAR('h') PORT_CHAR('H') PORT_CHAR(0x08) - PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Y") PORT_CODE(KEYCODE_Y) PORT_CHAR('y') PORT_CHAR('Y') PORT_CHAR(0x19) - PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("6 &") PORT_CODE(KEYCODE_6) PORT_CHAR('6') PORT_CHAR('&') - - PORT_START("LINE.7") - PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_UNUSED) - PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("F3") PORT_CODE(KEYCODE_F3) - PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Up") PORT_CODE(KEYCODE_UP) - PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("P") PORT_CODE(KEYCODE_P) PORT_CHAR('p') PORT_CHAR('P') PORT_CHAR(0x10) - PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME(". >") PORT_CODE(KEYCODE_STOP) PORT_CHAR('.') PORT_CHAR('>') - PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("J") PORT_CODE(KEYCODE_J) PORT_CHAR('j') PORT_CHAR('J') PORT_CHAR(0x0a) - PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("U") PORT_CODE(KEYCODE_U) PORT_CHAR('u') PORT_CHAR('U') PORT_CHAR(0x15) - PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("7 '") PORT_CODE(KEYCODE_7) PORT_CHAR('7') PORT_CHAR('\'') - - PORT_START("LINE.8") - PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_UNUSED) - PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("F4") PORT_CODE(KEYCODE_F4) - PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Down") PORT_CODE(KEYCODE_DOWN) - PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME(": *") PORT_CODE(KEYCODE_QUOTE) PORT_CHAR(':') PORT_CHAR('*') - PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("/ ?") PORT_CODE(KEYCODE_SLASH) PORT_CHAR('/') PORT_CHAR('?') - PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("K") PORT_CODE(KEYCODE_K) PORT_CHAR('k') PORT_CHAR('K') PORT_CHAR(0x0b) - PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("I") PORT_CODE(KEYCODE_I) PORT_CHAR('i') PORT_CHAR('I') PORT_CHAR(0x09) - PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("8 (") PORT_CODE(KEYCODE_8) PORT_CHAR('8') PORT_CHAR('(') - - PORT_START("LINE.9") - PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_START) PORT_NAME("IPL") PORT_CODE(KEYCODE_END) - PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("F5") PORT_CODE(KEYCODE_F5) - PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("- =") PORT_CODE(KEYCODE_MINUS) PORT_CHAR('-') PORT_CHAR('=') - PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("0") PORT_CODE(KEYCODE_0) PORT_CHAR('0') - PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("; +") PORT_CODE(KEYCODE_COLON) PORT_CHAR(';') PORT_CHAR('+') - PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("L") PORT_CODE(KEYCODE_L) PORT_CHAR('l') PORT_CHAR('L') PORT_CHAR(0x0c) - PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("O") PORT_CODE(KEYCODE_O) PORT_CHAR('o') PORT_CHAR('O') PORT_CHAR(0x0e) - PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("9 )") PORT_CODE(KEYCODE_9) PORT_CHAR('9') PORT_CHAR(')') - - PORT_START("JOY") - PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_BUTTON1 ) PORT_PLAYER(1) - PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_JOYSTICK_RIGHT ) PORT_8WAY PORT_PLAYER(1) - PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_JOYSTICK_LEFT ) PORT_8WAY PORT_PLAYER(1) - PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_JOYSTICK_UP ) PORT_8WAY PORT_PLAYER(1) - PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_JOYSTICK_DOWN ) PORT_8WAY PORT_PLAYER(1) - PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_UNUSED) // Button 2? - PORT_BIT(0xc0, IP_ACTIVE_HIGH, IPT_UNUSED) // Cassette related -INPUT_PORTS_END - - -void spc1000_state::machine_start() -{ - uint8_t *mem = memregion("maincpu")->base(); - uint8_t *ram = m_ram->pointer(); - - // configure and intialize banks 1 & 3 (read banks) - membank("bank1")->configure_entry(0, ram); - membank("bank1")->configure_entry(1, mem); - membank("bank3")->configure_entry(0, ram + 0x8000); - membank("bank3")->configure_entry(1, mem); - membank("bank1")->set_entry(1); - membank("bank3")->set_entry(1); - - // intialize banks 2 & 4 (write banks) - membank("bank2")->set_base(ram); - membank("bank4")->set_base(ram + 0x8000); - - m_time = machine().scheduler().time(); -} - -void spc1000_state::machine_reset() -{ - m_work_ram = make_unique_clear<uint8_t[]>(0x10000); - m_IPLK = 1; -} - -READ8_MEMBER(spc1000_state::mc6847_videoram_r) -{ - if (offset == ~0) - return 0xff; - - // m_GMODE layout: CSS|NA|PS2|PS1|~A/G|GM0|GM1|NA - if (!BIT(m_GMODE, 3)) - { // text mode (~A/G set to A) - uint8_t data = m_p_videoram[offset + m_page + 0x800]; - m_vdg->inv_w(BIT(data, 0)); - m_vdg->css_w(BIT(data, 1)); - m_vdg->as_w (BIT(data, 2)); - m_vdg->intext_w(BIT(data, 3)); - return m_p_videoram[offset + m_page]; - } - else - { // graphics mode: uses full 6KB of VRAM - return m_p_videoram[offset]; - } -} - -READ8_MEMBER( spc1000_state::porta_r ) -{ - uint8_t data = 0x3f; - data |= (m_cass->input() > 0.0038) ? 0x80 : 0; - data |= ((m_cass->get_state() & CASSETTE_MASK_UISTATE) == CASSETTE_STOPPED || ((m_cass->get_state() & CASSETTE_MASK_MOTOR) == CASSETTE_MOTOR_DISABLED)) ? 0x40 : 0; - data &= ~(m_io_joy->read() & 0x3f); - data &= ~((m_centronics_busy == 0)<< 5); - return data; -} - -// irq is inverted in emulation, so we need this trampoline -WRITE_LINE_MEMBER( spc1000_state::irq_w ) -{ - m_maincpu->set_input_line(0, state ? CLEAR_LINE : HOLD_LINE); -} - -//------------------------------------------------- -// address maps -//------------------------------------------------- - -void spc1000_exp(device_slot_interface &device) -{ - device.option_add("fdd", SPC1000_FDD_EXP); - device.option_add("vdp", SPC1000_VDP_EXP); -} - -void spc1000_state::spc1000(machine_config &config) -{ - /* basic machine hardware */ - Z80(config, m_maincpu, XTAL(4'000'000)); - m_maincpu->set_addrmap(AS_PROGRAM, &spc1000_state::spc1000_mem); - m_maincpu->set_addrmap(AS_IO, &spc1000_state::spc1000_io); - - /* video hardware */ - SCREEN(config, "screen", SCREEN_TYPE_RASTER); - - MC6847_NTSC(config, m_vdg, XTAL(3'579'545)); - m_vdg->set_screen("screen"); - m_vdg->fsync_wr_callback().set(FUNC(spc1000_state::irq_w)); - m_vdg->input_callback().set(FUNC(spc1000_state::mc6847_videoram_r)); - m_vdg->set_get_char_rom(FUNC(spc1000_state::get_char_rom)); - m_vdg->set_get_fixed_mode(mc6847_ntsc_device::MODE_GM2); - // other lines not connected - - /* sound hardware */ - SPEAKER(config, "mono").front_center(); - ay8910_device &ay8910(AY8910(config, "ay8910", XTAL(4'000'000) / 1)); - ay8910.port_a_read_callback().set(FUNC(spc1000_state::porta_r)); - ay8910.port_b_write_callback().set("cent_data_out", FUNC(output_latch_device::bus_w)); - ay8910.add_route(ALL_OUTPUTS, "mono", 1.00); - - SPC1000_EXP_SLOT(config, "ext1", spc1000_exp); - - CENTRONICS(config, m_centronics, centronics_devices, "printer"); - m_centronics->busy_handler().set(FUNC(spc1000_state::centronics_busy_w)); - - output_latch_device ¢_data_out(OUTPUT_LATCH(config, "cent_data_out")); - m_centronics->set_output_latch(cent_data_out); - - INPUT_BUFFER(config, "cent_status_in"); - - CASSETTE(config, m_cass); - m_cass->set_formats(spc1000_cassette_formats); - m_cass->set_default_state(CASSETTE_STOPPED | CASSETTE_SPEAKER_ENABLED | CASSETTE_MOTOR_DISABLED); - m_cass->add_route(ALL_OUTPUTS, "mono", 0.05); - m_cass->set_interface("spc1000_cass"); - - SOFTWARE_LIST(config, "cass_list").set_original("spc1000_cass"); - - /* internal ram */ - RAM(config, RAM_TAG).set_default_size("64K"); -} - -/* ROM definition */ -ROM_START( spc1000 ) - ROM_REGION(0x10000, "maincpu", ROMREGION_ERASEFF) - ROM_LOAD("spcall.rom", 0x0000, 0x8000, CRC(240426be) SHA1(8eb32e147c17a6d0f947b8bb3c6844750a7b64a8)) -ROM_END - -#if 0 -ROM_START( spc1000 ) - ROM_REGION(0x10000, "maincpu", ROMREGION_ERASEFF) - ROM_LOAD("spcall.rom", 0x0000, 0x8000, CRC(2fbb6eca) SHA1(cc9a076b0f00d54b2aec31f1f558b10f43ef61c8)) - /// more roms to come... -ROM_END -#endif - - -/* Driver */ - -// YEAR NAME PARENT COMPAT MACHINE INPUT CLASS INIT COMPANY FULLNAME FLAGS -COMP( 1982, spc1000, 0, 0, spc1000, spc1000, spc1000_state, empty_init, "Samsung", "SPC-1000", 0 ) |