diff options
Diffstat (limited to 'src/mame/drivers/acrnsys.cpp')
-rw-r--r-- | src/mame/drivers/acrnsys.cpp | 595 |
1 files changed, 0 insertions, 595 deletions
diff --git a/src/mame/drivers/acrnsys.cpp b/src/mame/drivers/acrnsys.cpp deleted file mode 100644 index 777aa6c0b0b..00000000000 --- a/src/mame/drivers/acrnsys.cpp +++ /dev/null @@ -1,595 +0,0 @@ -// license:BSD-3-Clause -// copyright-holders:Robbbert, Nigel Barnes -/*************************************************************************** - - Acorn System 2, 3, 4, and 5 - - Acorn System 2: 6502, VDU 40x25, 4K RAM, 4K ROM (BASIC), Cassette - http://chrisacorns.computinghistory.org.uk/Computers/System2.html - - Acorn System 3: 6502, VDU 40x25, 16K RAM, 4K ROM (BASIC), FDC (1 disc) - http://chrisacorns.computinghistory.org.uk/Computers/System3.html - - Acorn System 3: 6809, VDU 40x25, 16K RAM, FDC (1 disc) - http://chrisacorns.computinghistory.org.uk/8bit_Upgrades/Acorn_6809_CPU.html - - Acorn System 4: 6502, VDU 40x25, 16K RAM, FDC (2 discs) - http://chrisacorns.computinghistory.org.uk/Computers/System4.html - - Acorn System 5: 6502A, VDU 80x25, 32K RAM, FDC - http://chrisacorns.computinghistory.org.uk/Computers/System5.html - - TODO: - - AY-3-4572 Keyboard Encoder for full keyboard support - - 4K BASIC ROM is undumped for System 2/3 - - - 6809 Monitor Commands:- - Modify memory: - M - Modify starting at specified address - MR - Modify registers - MG - Modify from Go address - MV - Modify from breakpoint address - MP - Modify from saved Program counter - - Execute programs: - G - Go to specified address - P - Proceed from saved Program counter past specified number of breakpoints - - Debugging aids: - R - Display registers - V - Insert/delete breakpoint - T - Trace one, or more, instructions - . - Do trace, displaying register contents at each step - - Cassette interface: - S - Save memory to named file - L - Load named file, with optional offset - F - Finish loading - no name search - - Printer interface: - C - Copy to parallel printer - - Disk interface: - D - Disk bootstrap - -****************************************************************************/ - -#include "emu.h" -#include "cpu/m6502/m6502.h" -#include "cpu/m6809/m6809.h" -#include "machine/ins8154.h" -#include "machine/6522via.h" -#include "machine/keyboard.h" -#include "machine/input_merger.h" -#include "bus/centronics/ctronics.h" -#include "bus/acorn/bus.h" -#include "softlist_dev.h" - - -class acrnsys_state : public driver_device -{ -public: - acrnsys_state(const machine_config &mconfig, device_type type, const char *tag) - : driver_device(mconfig, type, tag) - , m_maincpu(*this, "maincpu") - , m_irqs(*this, "irqs") - , m_bus(*this, "bus") - , m_ins8154(*this, "ins8154") - , m_via6522(*this, "via6522") - , m_centronics(*this, "centronics") - , m_kbd_data(0) - { } - - DECLARE_INPUT_CHANGED_MEMBER(trigger_reset); - - void a6502(machine_config &config); - void a6809(machine_config &config); - void a6502a(machine_config &config); - - void acrnsys2(machine_config &config); - void acrnsys3(machine_config &config); - void acrnsys3_6809(machine_config &config); - void acrnsys4(machine_config &config); - void acrnsys5(machine_config &config); - -protected: - virtual void machine_start() override; - virtual void machine_reset() override; - -private: - void kbd_put(u8 data); - void kbd_put_pb(u8 data); - - DECLARE_READ8_MEMBER(kbd_r); - DECLARE_WRITE_LINE_MEMBER(bus_nmi_w); - - void a6502_mem(address_map &map); - void a6809_mem(address_map &map); - void a6502a_mem(address_map &map); - - required_device<cpu_device> m_maincpu; - required_device<input_merger_device> m_irqs; - required_device<acorn_bus_device> m_bus; - optional_device<ins8154_device> m_ins8154; - optional_device<via6522_device> m_via6522; - optional_device<centronics_device> m_centronics; - - uint8_t m_kbd_data; -}; - - -void acrnsys_state::a6502_mem(address_map &map) -{ - map.unmap_value_low(); - map(0x0000, 0x03ff).ram(); - map(0x0e00, 0x0e7f).mirror(0x100).rw(m_ins8154, FUNC(ins8154_device::read_io), FUNC(ins8154_device::write_io)); - map(0xf000, 0xffff).rom().region("maincpu", 0); -} - -void acrnsys_state::a6809_mem(address_map &map) -{ - map.unmap_value_high(); - map(0x0000, 0x03ff).ram(); - map(0x0900, 0x090f).mirror(0xf0).m(m_via6522, FUNC(via6522_device::map)); - map(0xf800, 0xffff).rom().region("maincpu", 0); -} - -void acrnsys_state::a6502a_mem(address_map &map) -{ - map.unmap_value_low(); - map(0x0000, 0x07ff).ram(); - map(0x0e00, 0x0e0f).mirror(0x1f0).m(m_via6522, FUNC(via6522_device::map)); - map(0xe000, 0xffff).rom().region("maincpu", 0); -} - - -void acrnsys_state::machine_start() -{ - save_item(NAME(m_kbd_data)); -} - -void acrnsys_state::machine_reset() -{ - m_kbd_data = 0x7f; -} - - -WRITE_LINE_MEMBER(acrnsys_state::bus_nmi_w) -{ - m_maincpu->set_input_line(INPUT_LINE_NMI, state); -} - - -INPUT_CHANGED_MEMBER(acrnsys_state::trigger_reset) -{ - m_maincpu->set_input_line(INPUT_LINE_RESET, newval ? CLEAR_LINE : ASSERT_LINE); - - if (newval) - { - machine().schedule_soft_reset(); - } -} - -/*************************************************************************** - Acorn Keyboard - Part No. 400,013 -***************************************************************************/ - -static INPUT_PORTS_START( acrnsys ) -//PORT_START("X0") -//PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("L SHIFT") PORT_CODE(KEYCODE_LSHIFT) PORT_CHAR(UCHAR_SHIFT_1) -//PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("R SHIFT") PORT_CODE(KEYCODE_RSHIFT) PORT_CHAR(UCHAR_SHIFT_1) -//PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("SHIFT LOCK") PORT_CODE(KEYCODE_LALT) -//PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("CTRL") PORT_CODE(KEYCODE_LCONTROL) PORT_CHAR(UCHAR_MAMEKEY(LCONTROL)) -//PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_UNUSED) -//PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_UNUSED) -//PORT_BIT(0x30, IP_ACTIVE_LOW, IPT_UNUSED) -//PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_1) PORT_CHAR('1') PORT_CHAR('!') -// -//PORT_START("X1") -//PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("ESC") PORT_CODE(KEYCODE_TILDE) PORT_CHAR(UCHAR_MAMEKEY(ESC)) -//PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_UNUSED) -//PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_2) PORT_CHAR('2') PORT_CHAR('\"') -//PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_W) PORT_CHAR('w') PORT_CHAR('W') -//PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_Q) PORT_CHAR('q') PORT_CHAR('Q') -//PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_S) PORT_CHAR('s') PORT_CHAR('S') -//PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_A) PORT_CHAR('a') PORT_CHAR('A') -//PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_Z) PORT_CHAR('z') PORT_CHAR('Z') -// -//PORT_START("X2") -//PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_UNUSED) -//PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_4) PORT_CHAR('4') 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_R) PORT_CHAR('r') PORT_CHAR('R') -//PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_E) PORT_CHAR('e') PORT_CHAR('E') -//PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_D) PORT_CHAR('d') PORT_CHAR('D') -//PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_X) PORT_CHAR('x') PORT_CHAR('X') -//PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_C) PORT_CHAR('c') PORT_CHAR('C') -// -//PORT_START("X3") -//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_CODE(KEYCODE_5) PORT_CHAR('5') PORT_CHAR('%') -//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_F) PORT_CHAR('f') PORT_CHAR('F') -//PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_G) PORT_CHAR('g') PORT_CHAR('G') -//PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_V) PORT_CHAR('v') PORT_CHAR('V') -//PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_B) PORT_CHAR('b') PORT_CHAR('B') -// -//PORT_START("X4") -//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_CODE(KEYCODE_6) PORT_CHAR('6') PORT_CHAR('&') -//PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_Y) PORT_CHAR('y') PORT_CHAR('Y') -//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_N) PORT_CHAR('n') PORT_CHAR('N') -//PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_UNUSED) -//PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("SPACE") PORT_CODE(KEYCODE_SPACE) PORT_CHAR(32) -// -//PORT_START("X5") -//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_CODE(KEYCODE_7) PORT_CHAR('7') PORT_CHAR('\'') -//PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_U) PORT_CHAR('u') PORT_CHAR('U') -//PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_J) PORT_CHAR('j') PORT_CHAR('J') -//PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_K) PORT_CHAR('k') PORT_CHAR('K') -//PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_M) PORT_CHAR('m') PORT_CHAR('M') -//PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_COMMA) PORT_CHAR(',') PORT_CHAR('<') - -//PORT_START("X6") -//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_CODE(KEYCODE_8) PORT_CHAR('8') PORT_CHAR('(') -//PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_I) PORT_CHAR('i') PORT_CHAR('I') -//PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_O) PORT_CHAR('o') PORT_CHAR('O') -//PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_UNUSED) -//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_UNUSED) -// -//PORT_START("X7") -//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_CODE(KEYCODE_9) PORT_CHAR('9') PORT_CHAR(')') -//PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_UNUSED) -//PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_P) PORT_CHAR('p') PORT_CHAR('P') -//PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_UNUSED) -//PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_UNUSED) -//PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_STOP) PORT_CHAR('.') PORT_CHAR('>') -// -//PORT_START("X8") -//PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_UNUSED) -//PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_UNUSED) -//PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_UNUSED) -//PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_UNUSED) -//PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_UNUSED) -//PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_COLON) PORT_CHAR(';') PORT_CHAR('+') -//PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_SLASH) PORT_CHAR('/') PORT_CHAR('?') -//PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_UNUSED) -// -//PORT_START("X9") -//PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_UNUSED) -//PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_EQUALS) PORT_CHAR(':') PORT_CHAR('*') -//PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("COPY") PORT_CODE(KEYCODE_TAB) PORT_CHAR(UCHAR_MAMEKEY(TAB)) -// -//PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("LINE FEED") PORT_CODE(KEYCODE_INSERT) PORT_CHAR(10) -//PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_QUOTE) PORT_CHAR('[') -//PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("RETURN") PORT_CODE(KEYCODE_ENTER) PORT_CHAR(13) -//PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_BACKSLASH) PORT_CHAR(']') -// -//PORT_START("X10") -//PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("DELETE") PORT_CODE(KEYCODE_DEL) PORT_CHAR(8) -//PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_UNUSED) -//PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_UNUSED) -//PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_UNUSED) -//PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_UNUSED) -//PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_OPENBRACE) PORT_CHAR('@') -//PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME(UTF8_UP) PORT_CODE(KEYCODE_BACKSPACE) PORT_CHAR('^') -//PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_CLOSEBRACE) PORT_CHAR('\\') -// -//PORT_START("X11") -//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_CODE(KEYCODE_MINUS) PORT_CHAR('-') PORT_CHAR('=') -//PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_UNUSED) -//PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_UNUSED) -//PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_UNUSED) -//PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_UNUSED) -//PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_UNUSED) -// -//PORT_START("X12") -//PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_UNUSED) -//PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_UNUSED) -//PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_UNUSED) -//PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_UNUSED) -//PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_UNUSED) -//PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_UNUSED) -//PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_UNUSED) -//PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_0) PORT_CHAR('0') -// -//PORT_START("CAPS") -//PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("LOCK") PORT_CODE(KEYCODE_CAPSLOCK) PORT_CHAR(UCHAR_MAMEKEY(CAPSLOCK)) PORT_TOGGLE -// -//PORT_START("RPT") -//PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("REPT") PORT_CODE(KEYCODE_RCONTROL) PORT_CHAR(UCHAR_MAMEKEY(RCONTROL)) - - PORT_START("BRK") - PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("BREAK") PORT_CODE(KEYCODE_F12) PORT_CHAR(UCHAR_MAMEKEY(F12)) PORT_CHANGED_MEMBER(DEVICE_SELF, acrnsys_state, trigger_reset, 0) -INPUT_PORTS_END - - -void acrnsys_state::kbd_put(uint8_t data) -{ - data &= 0x7f; - /* allow backspace to work */ - if (data == 8) data = 0x7f; - /* assert strobe */ - m_kbd_data = data | 0x80; -} - -READ8_MEMBER(acrnsys_state::kbd_r) -{ - uint8_t data = m_kbd_data; - - /* clear strobe */ - m_kbd_data &= 0x7f; - - return data; -} - -void acrnsys_state::kbd_put_pb(uint8_t data) -{ - data &= 0x7f; - /* allow backspace to work */ - if (data == 8) data = 0x7f; - - m_via6522->write_pb0(BIT(data, 0)); - m_via6522->write_pb1(BIT(data, 1)); - m_via6522->write_pb2(BIT(data, 2)); - m_via6522->write_pb3(BIT(data, 3)); - m_via6522->write_pb4(BIT(data, 4)); - m_via6522->write_pb5(BIT(data, 5)); - m_via6522->write_pb6(BIT(data, 6)); - /* assert strobe */ - m_via6522->write_cb1(1); - /* clear strobe */ - m_via6522->write_cb1(0); -} - - -/*************************************************************************** - 6502 CPU Board - Part No. 200,000 -***************************************************************************/ - -void acrnsys_state::a6502(machine_config &config) -{ - M6502(config, m_maincpu, 24_MHz_XTAL / 12); /* 1MHz 6502 CPU */ - m_maincpu->set_addrmap(AS_PROGRAM, &acrnsys_state::a6502_mem); - - INPUT_MERGER_ANY_HIGH(config, m_irqs).output_handler().set_inputline(m_maincpu, M6502_IRQ_LINE); - - INS8154(config, m_ins8154); - //m_ins8154->in_a().set(FUNC(acrnsys_state::ins8154_pa_r)); - //m_ins8154->out_a().set(FUNC(acrnsys_state::ins8154_pa_w)); - m_ins8154->in_b().set(FUNC(acrnsys_state::kbd_r)); - - generic_keyboard_device &keyboard(GENERIC_KEYBOARD(config, "keyboard", 0)); - keyboard.set_keyboard_callback(FUNC(acrnsys_state::kbd_put)); -} - - -/*************************************************************************** - 6502A CPU Board - Part No. 200,005 -***************************************************************************/ - -void acrnsys_state::a6502a(machine_config &config) -{ - M6502(config, m_maincpu, 24_MHz_XTAL / 12); /* 2MHz 6502A CPU */ - m_maincpu->set_addrmap(AS_PROGRAM, &acrnsys_state::a6502a_mem); - - INPUT_MERGER_ANY_HIGH(config, m_irqs).output_handler().set_inputline(m_maincpu, M6502_IRQ_LINE); - - VIA6522(config, m_via6522, 4_MHz_XTAL / 4); - m_via6522->readpa_handler().set(FUNC(acrnsys_state::kbd_r)); - //m_via6522->cb2_handler().set(FUNC(acrnsys_state::cass_w)); - m_via6522->irq_handler().set(m_irqs, FUNC(input_merger_device::in_w<0>)); - - generic_keyboard_device &keyboard(GENERIC_KEYBOARD(config, "keyboard", 0)); - keyboard.set_keyboard_callback(FUNC(acrnsys_state::kbd_put)); -} - - -/*************************************************************************** - 6809 CPU Board - Part No. 200,012 -***************************************************************************/ - -void acrnsys_state::a6809(machine_config &config) -{ - MC6809(config, m_maincpu, 4_MHz_XTAL); - m_maincpu->set_addrmap(AS_PROGRAM, &acrnsys_state::a6809_mem); - - INPUT_MERGER_ANY_HIGH(config, m_irqs).output_handler().set_inputline(m_maincpu, M6809_IRQ_LINE); - - VIA6522(config, m_via6522, 4_MHz_XTAL / 4); - m_via6522->writepa_handler().set("cent_data_out", FUNC(output_latch_device::bus_w)); - m_via6522->ca2_handler().set("centronics", FUNC(centronics_device::write_strobe)); - //m_via6522->cb2_handler().set(FUNC(acrnsys_state::cass_w)); - m_via6522->irq_handler().set(m_irqs, FUNC(input_merger_device::in_w<0>)); - - CENTRONICS(config, m_centronics, centronics_devices, "printer"); - m_centronics->ack_handler().set(m_via6522, FUNC(via6522_device::write_ca1)); - m_centronics->busy_handler().set(m_via6522, FUNC(via6522_device::write_pa7)); - output_latch_device &latch(OUTPUT_LATCH(config, "cent_data_out")); - m_centronics->set_output_latch(latch); - - generic_keyboard_device &keyboard(GENERIC_KEYBOARD(config, "keyboard", 0)); - keyboard.set_keyboard_callback(FUNC(acrnsys_state::kbd_put_pb)); -} - - -/*************************************************************************** - MACHINE DRIVERS -***************************************************************************/ - -void acrnsys_state::acrnsys2(machine_config &config) -{ - /* 6502 CPU Board */ - a6502(config); - - /* Acorn Bus - 8 Slot Backplane */ - ACORN_BUS(config, m_bus, 0); - m_bus->set_space(m_maincpu, AS_PROGRAM); - m_bus->out_irq_callback().set(m_irqs, FUNC(input_merger_device::in_w<1>)); - m_bus->out_nmi_callback().set(FUNC(acrnsys_state::bus_nmi_w)); - ACORN_BUS_SLOT(config, "bus1", m_bus, acorn_bus_devices, "8k"); // 0x2000-0x3fff - ACORN_BUS_SLOT(config, "bus2", m_bus, acorn_bus_devices, "vdu40"); - ACORN_BUS_SLOT(config, "bus3", m_bus, acorn_bus_devices, "cass"); - ACORN_BUS_SLOT(config, "bus4", m_bus, acorn_bus_devices, nullptr); - ACORN_BUS_SLOT(config, "bus5", m_bus, acorn_bus_devices, nullptr); - ACORN_BUS_SLOT(config, "bus6", m_bus, acorn_bus_devices, nullptr); - ACORN_BUS_SLOT(config, "bus7", m_bus, acorn_bus_devices, nullptr); - - /* Software lists */ - SOFTWARE_LIST(config, "flop_list").set_original("acrnsys_flop"); - SOFTWARE_LIST(config, "rom_list").set_original("acrnsys_rom"); -} - - -void acrnsys_state::acrnsys3(machine_config &config) -{ - /* 6502 CPU Board */ - a6502(config); - - /* Acorn Bus - 8 Slot Backplane */ - ACORN_BUS(config, m_bus, 0); - m_bus->set_space(m_maincpu, AS_PROGRAM); - m_bus->out_irq_callback().set(m_irqs, FUNC(input_merger_device::in_w<1>)); - m_bus->out_nmi_callback().set(FUNC(acrnsys_state::bus_nmi_w)); - ACORN_BUS_SLOT(config, "bus1", m_bus, acorn_bus_devices, "8k"); // 0x2000-0x3fff - ACORN_BUS_SLOT(config, "bus2", m_bus, acorn_bus_devices, "8k"); // 0xc000-0xdfff - ACORN_BUS_SLOT(config, "bus3", m_bus, acorn_bus_devices, "vdu40"); - ACORN_BUS_SLOT(config, "bus4", m_bus, acorn_bus_devices, "fdc"); - ACORN_BUS_SLOT(config, "bus5", m_bus, acorn_bus_devices, nullptr); - ACORN_BUS_SLOT(config, "bus6", m_bus, acorn_bus_devices, nullptr); - ACORN_BUS_SLOT(config, "bus7", m_bus, acorn_bus_devices, nullptr); - - /* Software lists */ - SOFTWARE_LIST(config, "flop_list").set_original("acrnsys_flop"); - SOFTWARE_LIST(config, "rom_list").set_original("acrnsys_rom"); -} - - -void acrnsys_state::acrnsys3_6809(machine_config &config) -{ - /* 6809 CPU Board */ - a6809(config); - - /* Acorn Bus - 8 Slot Backplane */ - ACORN_BUS(config, m_bus, 0); - m_bus->set_space(m_maincpu, AS_PROGRAM); - m_bus->out_irq_callback().set(m_irqs, FUNC(input_merger_device::in_w<1>)); - m_bus->out_nmi_callback().set(FUNC(acrnsys_state::bus_nmi_w)); - ACORN_BUS_SLOT(config, "bus1", m_bus, acorn_bus_devices, "8k"); // 0x0000-0x1fff - ACORN_BUS_SLOT(config, "bus2", m_bus, acorn_bus_devices, "8k"); // 0x2000-0x3fff - ACORN_BUS_SLOT(config, "bus3", m_bus, acorn_bus_devices, "8k"); // 0xc000-0xdfff - ACORN_BUS_SLOT(config, "bus4", m_bus, acorn_bus_devices, "vdu40"); - ACORN_BUS_SLOT(config, "bus5", m_bus, acorn_bus_devices, "cass"); - ACORN_BUS_SLOT(config, "bus6", m_bus, acorn_bus_devices, "fdc"); - ACORN_BUS_SLOT(config, "bus7", m_bus, acorn_bus_devices, nullptr); - - /* Software lists */ - SOFTWARE_LIST(config, "flop_list").set_original("acrnsys_flop"); -} - - -void acrnsys_state::acrnsys4(machine_config &config) -{ - /* 6502 CPU Board */ - a6502(config); - - /* Acorn Bus - 14 Slot Backplane */ - ACORN_BUS(config, m_bus, 0); - m_bus->set_space(m_maincpu, AS_PROGRAM); - m_bus->out_irq_callback().set(m_irqs, FUNC(input_merger_device::in_w<1>)); - m_bus->out_nmi_callback().set(FUNC(acrnsys_state::bus_nmi_w)); - ACORN_BUS_SLOT(config, "bus1", m_bus, acorn_bus_devices, "8k"); // 0x2000-0x3fff - ACORN_BUS_SLOT(config, "bus2", m_bus, acorn_bus_devices, "8k"); // 0xc000-0xdfff - ACORN_BUS_SLOT(config, "bus3", m_bus, acorn_bus_devices, "vdu40"); - ACORN_BUS_SLOT(config, "bus4", m_bus, acorn_bus_devices, "fdc"); - ACORN_BUS_SLOT(config, "bus5", m_bus, acorn_bus_devices, nullptr); - ACORN_BUS_SLOT(config, "bus6", m_bus, acorn_bus_devices, nullptr); - ACORN_BUS_SLOT(config, "bus7", m_bus, acorn_bus_devices, nullptr); - ACORN_BUS_SLOT(config, "bus8", m_bus, acorn_bus_devices, nullptr); - ACORN_BUS_SLOT(config, "bus9", m_bus, acorn_bus_devices, nullptr); - ACORN_BUS_SLOT(config, "bus10", m_bus, acorn_bus_devices, nullptr); - ACORN_BUS_SLOT(config, "bus11", m_bus, acorn_bus_devices, nullptr); - ACORN_BUS_SLOT(config, "bus12", m_bus, acorn_bus_devices, nullptr); - ACORN_BUS_SLOT(config, "bus13", m_bus, acorn_bus_devices, nullptr); - - /* Software lists */ - SOFTWARE_LIST(config, "flop_list").set_original("acrnsys_flop"); - SOFTWARE_LIST(config, "rom_list").set_original("acrnsys_rom"); -} - - -void acrnsys_state::acrnsys5(machine_config &config) -{ - /* 6502A CPU Board */ - a6502a(config); - - /* Acorn Bus - 7 Slot Backplane */ - ACORN_BUS(config, m_bus, 0); - m_bus->set_space(m_maincpu, AS_PROGRAM); - m_bus->out_irq_callback().set(m_irqs, FUNC(input_merger_device::in_w<1>)); - m_bus->out_nmi_callback().set(FUNC(acrnsys_state::bus_nmi_w)); - ACORN_BUS_SLOT(config, "bus1", m_bus, acorn_bus_devices, "32k"); // 32K - ACORN_BUS_SLOT(config, "bus2", m_bus, acorn_bus_devices, "32k"); // 16K - ACORN_BUS_SLOT(config, "bus3", m_bus, acorn_bus_devices, "vdu80"); - ACORN_BUS_SLOT(config, "bus4", m_bus, acorn_bus_devices, "fdc"); - ACORN_BUS_SLOT(config, "bus5", m_bus, acorn_bus_devices, "econet"); - ACORN_BUS_SLOT(config, "bus6", m_bus, acorn_bus_devices, nullptr); - - /* Software lists */ - SOFTWARE_LIST(config, "flop_list").set_original("acrnsys_flop"); - SOFTWARE_LIST(config, "rom_list").set_original("acrnsys_rom"); -} - - -/*************************************************************************** - ROM definitions -***************************************************************************/ - -ROM_START( acrnsys2 ) - ROM_REGION(0x1000, "maincpu", 0) - ROM_LOAD("syscos40.ic7", 0x0800, 0x0800, BAD_DUMP CRC(af457ccc) SHA1(c8c1fbfb8d2e8aa0fdf8e3dc80993ad404cc943d)) // Acorn COS (no known dump, this is re-created from source) -ROM_END - -ROM_START( acrnsys3 ) - ROM_REGION(0x1000, "maincpu", 0) - ROM_LOAD("tosdos-s3.ic7", 0x0000, 0x1000, CRC(9b1fbec4) SHA1(4cb322dadcfba9c452797d6cc2096f0c92e8792c)) // Acorn DOS -ROM_END - -ROM_START( acrnsys3_6809 ) - ROM_REGION(0x1000, "maincpu", 0) - ROM_LOAD("acorn6809.ic4", 0x0000, 0x0800, CRC(5fa5b632) SHA1(b14a884bf82a7a8c23bc03c2e112728dd1a74896)) - - ROM_REGION(0x100, "proms", 0) - ROM_LOAD("acorn6809.ic11", 0x0000, 0x0100, CRC(7908317d) SHA1(e0f1e5bd3a8598d3b62bc432dd1f3892ed7e66d8)) // address decoder -ROM_END - -#define rom_acrnsys4 rom_acrnsys3 - -ROM_START( acrnsys5 ) - /* 6502A CPU board can take 4K, 8K, 16K ROMs */ - ROM_REGION(0x2000, "maincpu", 0) - /* References suggest models 5A-5E also exist, this is 5F */ - ROM_LOAD("sys5f_iss1.ic11", 0x0000, 0x2000, CRC(cd80418d) SHA1(e588298239b5360b5d1e15d5cd9f7fe2b1693e5d)) // 201,625 -ROM_END - -/* Driver */ - -/* YEAR NAME PARENT COMPAT MACHINE INPUT CLASS INIT COMPANY FULLNAME FLAGS */ -COMP( 1980, acrnsys2, acrnsys3, 0, acrnsys2, acrnsys, acrnsys_state, empty_init, "Acorn", "Acorn System 2", MACHINE_NO_SOUND_HW ) -COMP( 1980, acrnsys3, 0, 0, acrnsys3, acrnsys, acrnsys_state, empty_init, "Acorn", "Acorn System 3 (6502 CPU)", MACHINE_NO_SOUND_HW ) -COMP( 1980, acrnsys3_6809, acrnsys3, 0, acrnsys3_6809, acrnsys, acrnsys_state, empty_init, "Acorn", "Acorn System 3 (6809 CPU)", MACHINE_NO_SOUND_HW ) -COMP( 1980, acrnsys4, acrnsys3, 0, acrnsys4, acrnsys, acrnsys_state, empty_init, "Acorn", "Acorn System 4", MACHINE_NO_SOUND_HW ) -COMP( 1982, acrnsys5, 0, 0, acrnsys5, acrnsys, acrnsys_state, empty_init, "Acorn", "Acorn System 5", MACHINE_NO_SOUND_HW ) |