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Diffstat (limited to 'src/devices/bus/spectrum/opus.cpp')
-rw-r--r--src/devices/bus/spectrum/opus.cpp289
1 files changed, 0 insertions, 289 deletions
diff --git a/src/devices/bus/spectrum/opus.cpp b/src/devices/bus/spectrum/opus.cpp
deleted file mode 100644
index be73ef01e92..00000000000
--- a/src/devices/bus/spectrum/opus.cpp
+++ /dev/null
@@ -1,289 +0,0 @@
-// license:BSD-3-Clause
-// copyright-holders:Nigel Barnes
-/**********************************************************************
-
- Opus Discovery disc system
-
-**********************************************************************/
-
-
-#include "emu.h"
-#include "opus.h"
-
-
-//**************************************************************************
-// DEVICE DEFINITIONS
-//**************************************************************************
-
-DEFINE_DEVICE_TYPE(SPECTRUM_OPUS, spectrum_opus_device, "spectrum_opus", "Opus Discovery")
-
-
-//-------------------------------------------------
-// INPUT_PORTS( opus )
-//-------------------------------------------------
-
-static INPUT_PORTS_START( opus )
- PORT_START("JOY")
- PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_JOYSTICK_RIGHT) PORT_8WAY
- PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_JOYSTICK_LEFT) PORT_8WAY
- PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_JOYSTICK_DOWN) PORT_8WAY
- PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_JOYSTICK_UP) PORT_8WAY
- PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_BUTTON1)
-INPUT_PORTS_END
-
-//-------------------------------------------------
-// input_ports - device-specific input ports
-//-------------------------------------------------
-
-ioport_constructor spectrum_opus_device::device_input_ports() const
-{
- return INPUT_PORTS_NAME( opus );
-}
-
-//-------------------------------------------------
-// MACHINE_DRIVER( opus )
-//-------------------------------------------------
-
-FLOPPY_FORMATS_MEMBER( spectrum_opus_device::floppy_formats )
- FLOPPY_OPD_FORMAT
-FLOPPY_FORMATS_END
-
-static void spectrum_floppies(device_slot_interface &device)
-{
- device.option_add("35ssdd", FLOPPY_35_SSDD);
- device.option_add("35dd", FLOPPY_35_DD);
-}
-
-ROM_START(opus)
- ROM_REGION(0x2000, "rom", 0)
- ROM_DEFAULT_BIOS("opus22")
- ROM_SYSTEM_BIOS(0, "opus22", "Opus v2.2")
- ROMX_LOAD("opus-22.rom", 0x0000, 0x2000, CRC(50f0eae0) SHA1(0eee1c503f71709fce8b7560dadc2d07d15edb80), ROM_BIOS(0))
- ROM_SYSTEM_BIOS(1, "opus21", "Opus v2.1")
- ROMX_LOAD("opus-21.rom", 0x0000, 0x2000, CRC(619973f9) SHA1(31999a68901392bba907cf5a15e264b6759f1a29), ROM_BIOS(1))
- ROM_SYSTEM_BIOS(2, "opus222", "Opus v2.22")
- ROMX_LOAD("opus-222.rom", 0x0000, 0x2000, CRC(08ce9949) SHA1(71f1c8a8b923f7751d1ff48d30b8e18a15b92591), ROM_BIOS(2))
- ROM_SYSTEM_BIOS(3, "quickdos", "QuickDOS v2.31") // MegaSoft
- ROMX_LOAD("quickdos-231.rom", 0x0000, 0x2000, CRC(d042b32a) SHA1(2975f7eb61d44e898cdd6e3196893e95637f17ff), ROM_BIOS(3))
- ROM_SYSTEM_BIOS(4, "excom", "EXCOM v2.28") // Paul Cheffings
- ROMX_LOAD("excom-228.rom", 0x0000, 0x2000, CRC(29257418) SHA1(098a812c4707251f647553a2abc1436afa38f43c), ROM_BIOS(4))
-ROM_END
-
-
-//-------------------------------------------------
-// device_add_mconfig - add device configuration
-//-------------------------------------------------
-
-void spectrum_opus_device::device_add_mconfig(machine_config &config)
-{
- WD1770(config, m_fdc, 16_MHz_XTAL / 2);
- m_fdc->drq_wr_callback().set(DEVICE_SELF_OWNER, FUNC(spectrum_expansion_slot_device::nmi_w));
-
- FLOPPY_CONNECTOR(config, "fdc:0", spectrum_floppies, "35dd", spectrum_opus_device::floppy_formats).enable_sound(true);
- FLOPPY_CONNECTOR(config, "fdc:1", spectrum_floppies, "35dd", spectrum_opus_device::floppy_formats).enable_sound(true);
-
- /* parallel printer port */
- CENTRONICS(config, m_centronics, centronics_devices, "printer");
- m_centronics->ack_handler().set(m_pia, FUNC(pia6821_device::ca2_w));
- m_centronics->busy_handler().set(FUNC(spectrum_opus_device::busy_w));
-
- /* pia */
- PIA6821(config, m_pia, 0);
- m_pia->writepa_handler().set(FUNC(spectrum_opus_device::pia_out_a));
- m_pia->writepb_handler().set(FUNC(spectrum_opus_device::pia_out_b));
- m_pia->cb2_handler().set("centronics", FUNC(centronics_device::write_strobe));
-
- /* software list */
- SOFTWARE_LIST(config, "flop_list").set_original("spectrum_flop_opus");
-
- /* passthru without NMI */
- SPECTRUM_EXPANSION_SLOT(config, m_exp, spectrum_expansion_devices, nullptr);
- m_exp->irq_handler().set(DEVICE_SELF_OWNER, FUNC(spectrum_expansion_slot_device::irq_w));
-}
-
-const tiny_rom_entry *spectrum_opus_device::device_rom_region() const
-{
- return ROM_NAME( opus );
-}
-
-
-//**************************************************************************
-// LIVE DEVICE
-//**************************************************************************
-
-//-------------------------------------------------
-// spectrum_opus_device - constructor
-//-------------------------------------------------
-
-spectrum_opus_device::spectrum_opus_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock)
- : device_t(mconfig, SPECTRUM_OPUS, tag, owner, clock)
- , device_spectrum_expansion_interface(mconfig, *this)
- , m_joy(*this, "JOY")
- , m_rom(*this, "rom")
- , m_pia(*this, "pia")
- , m_fdc(*this, "fdc")
- , m_floppy0(*this, "fdc:0")
- , m_floppy1(*this, "fdc:1")
- , m_centronics(*this, "centronics")
- , m_exp(*this, "exp")
-{
-}
-
-//-------------------------------------------------
-// device_start - device-specific startup
-//-------------------------------------------------
-
-void spectrum_opus_device::device_start()
-{
- memset(m_ram, 0, sizeof(m_ram));
-
- save_item(NAME(m_romcs));
- save_item(NAME(m_ram));
- save_item(NAME(m_last_pc));
-}
-
-//-------------------------------------------------
-// device_reset - device-specific reset
-//-------------------------------------------------
-
-void spectrum_opus_device::device_reset()
-{
- m_romcs = 0;
- m_last_pc = 0x0000;
-}
-
-
-//**************************************************************************
-// IMPLEMENTATION
-//**************************************************************************
-
-READ_LINE_MEMBER(spectrum_opus_device::romcs)
-{
- return m_romcs | m_exp->romcs();
-}
-
-void spectrum_opus_device::opcode_fetch(offs_t offset)
-{
- m_exp->opcode_fetch(offset);
-
- if (!machine().side_effects_disabled())
- {
- switch (m_last_pc)
- {
- case 0x0008: case 0x0048: case 0x1708:
- m_romcs = 1;
- break;
- case 0x1748:
- m_romcs = 0;
- break;
- }
- }
- m_last_pc = offset;
-}
-
-uint8_t spectrum_opus_device::iorq_r(offs_t offset)
-{
- uint8_t data = m_exp->iorq_r(offset);
-
- // PIA bit 7 is enable joystick and selected on A5 only
- if (!BIT(m_pia->a_output(), 7) && (~offset & 0x20))
- {
- data &= m_joy->read() & 0x1f;
- }
- return data;
-}
-
-void spectrum_opus_device::iorq_w(offs_t offset, uint8_t data)
-{
- m_exp->iorq_w(offset, data);
-}
-
-uint8_t spectrum_opus_device::mreq_r(offs_t offset)
-{
- uint8_t data = 0xff;
-
- if (m_romcs)
- {
- switch (offset & 0xf800)
- {
- case 0x0000: case 0x0800: case 0x1000: case 0x1800:
- data = m_rom->base()[offset & 0x1fff];
- break;
- case 0x2000:
- data = m_ram[offset & 0x7ff];
- break;
- case 0x2800:
- data = m_fdc->read(offset & 0x03);
- break;
- case 0x3000:
- data = m_pia->read(offset & 0x03);
- break;
- case 0x3800: // Extra 2K described in QuickDOS manual - not used
- data = m_ram[offset & 0xfff];
- break;
- }
- }
-
- if (m_exp->romcs())
- data &= m_exp->mreq_r(offset);
-
- return data;
-}
-
-void spectrum_opus_device::mreq_w(offs_t offset, uint8_t data)
-{
- if (m_romcs)
- {
- switch (offset & 0xf800)
- {
- case 0x2000:
- m_ram[offset & 0x7ff] = data;
- break;
- case 0x2800:
- m_fdc->write(offset & 0x03, data);
- break;
- case 0x3000:
- m_pia->write(offset & 0x03, data);
- break;
- case 0x3800: // Extra 2K described in QuickDOS manual - not used
- m_ram[offset & 0xfff] = data;
- break;
- }
- }
-
- if (m_exp->romcs())
- m_exp->mreq_w(offset, data);
-}
-
-WRITE8_MEMBER(spectrum_opus_device::pia_out_a)
-{
- floppy_image_device *floppy = nullptr;
-
- // bit 0, 1: drive select
- if (!BIT(data, 0)) floppy = m_floppy1->get_device();
- if (!BIT(data, 1)) floppy = m_floppy0->get_device();
- m_fdc->set_floppy(floppy);
-
- // bit 4: side select
- if (floppy)
- floppy->ss_w(BIT(data, 4));
-
- // bit 5: density
- m_fdc->dden_w(BIT(data, 5));
-}
-
-WRITE8_MEMBER(spectrum_opus_device::pia_out_b)
-{
- m_centronics->write_data1(BIT(data, 1));
- m_centronics->write_data2(BIT(data, 2));
- m_centronics->write_data3(BIT(data, 3));
- m_centronics->write_data4(BIT(data, 4));
- m_centronics->write_data5(BIT(data, 5));
- m_centronics->write_data6(BIT(data, 6));
- m_centronics->write_data7(BIT(data, 7));
-}
-
-WRITE_LINE_MEMBER(spectrum_opus_device::busy_w)
-{
- m_pia->set_a_input(state << 6, 0xbf);
-}