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bus/spectrum/kempdisc.cpp: replace K-DOS v2.1 bad dump with good one, add KDOS 2.1 Italian translation, add "Watford SP-DOS Interface" (technically not working without boot disk) [Luzie, James McKey, MetalliC]
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MetalliC
parent
7e1b46d2bb
commit
365d94a31b
@ -216,6 +216,7 @@ void spectrum_expansion_devices(device_slot_interface &device)
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device.option_add("protek", SPECTRUM_PROTEK);
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device.option_add("sdi", SPECTRUM_SDI);
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device.option_add("speccydos", SPECTRUM_SPECCYDOS);
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device.option_add("spdos", SPECTRUM_SPDOS);
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device.option_add("specdrum", SPECTRUM_SPECDRUM);
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device.option_add("swiftdisc", SPECTRUM_SWIFTDISC);
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device.option_add("swiftdisc2", SPECTRUM_SWIFTDISC2);
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@ -22,6 +22,14 @@
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- implement onboard Kempston Centronics E interace and joystick port
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- add more docs/information
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*********************************************************************
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Watford SP-DOS Interface
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(c) Abbeydale Designers ltd 1984
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Earlier version of Kempston Disc, uses 2Kbyte ROM with small boot loader, same FDC ports but slightly different paging.
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Require "System disk" with DOS to function, which is not dumped / missing at the moment.
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*********************************************************************/
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#include "emu.h"
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@ -33,6 +41,7 @@
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***************************************************************************/
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DEFINE_DEVICE_TYPE(SPECTRUM_KEMPDISC, spectrum_kempdisc_device, "spectrum_kempdisc", "Kempston Disc Interface")
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DEFINE_DEVICE_TYPE(SPECTRUM_SPDOS, spectrum_spdos_device, "spectrum_spdos", "Watford SP-DOS Interface")
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//-------------------------------------------------
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@ -67,8 +76,15 @@ ROM_START(kempdisc)
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ROM_SYSTEM_BIOS(0, "kd20", "K-DOS v2.0")
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ROMX_LOAD("kd20.rom", 0x0000, 0x2000, CRC(244816a7) SHA1(b08e0e30f1db4f57d38b112be0115256528c6621), ROM_BIOS(0))
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ROM_SYSTEM_BIOS(1, "kd21", "K-DOS v2.1")
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ROMX_LOAD("kd21.rom", 0x0000, 0x2000, CRC(d18fb812) SHA1(b3e00bc4111ef6311789159024fb4cd25c32a72f), ROM_BIOS(1))
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// TODO add Italian clone
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ROMX_LOAD("kd21.rom", 0x0000, 0x2000, CRC(3a0705eb) SHA1(adebc46c1b6718eaed7e2844506011787117cb05), ROM_BIOS(1))
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//ROMX_LOAD("kd21.rom", 0x0000, 0x2000, CRC(d18fb812) SHA1(b3e00bc4111ef6311789159024fb4cd25c32a72f), ROM_BIOS(1)) // bad dump
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ROM_SYSTEM_BIOS(2, "kd21it", "K-DOS v2.1 Italian") // copyrights and texts changed and translated
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ROMX_LOAD("kd21it.rom", 0x0000, 0x2000, CRC(f8ccdf8a) SHA1(4a75fb4951d74e254c230d56b5566c924b3c38f6), ROM_BIOS(2))
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ROM_END
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ROM_START(spdos)
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ROM_REGION(0x0800, "rom", 0)
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ROM_LOAD("spdos.rom", 0x0000, 0x0800, CRC(87b954a3) SHA1(bb0706cf1538da8acd12b8c9cd2cd75ca689ec44))
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ROM_END
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//-------------------------------------------------
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@ -95,6 +111,11 @@ const tiny_rom_entry *spectrum_kempdisc_device::device_rom_region() const
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return ROM_NAME(kempdisc);
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}
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const tiny_rom_entry *spectrum_spdos_device::device_rom_region() const
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{
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return ROM_NAME(spdos);
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}
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//**************************************************************************
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// LIVE DEVICE
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@ -104,8 +125,8 @@ const tiny_rom_entry *spectrum_kempdisc_device::device_rom_region() const
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// spectrum_kempdisc_device - constructor
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//-------------------------------------------------
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spectrum_kempdisc_device::spectrum_kempdisc_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock)
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: device_t(mconfig, SPECTRUM_KEMPDISC, tag, owner, clock)
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spectrum_kempdisc_device::spectrum_kempdisc_device(const machine_config &mconfig, device_type type, const char *tag, device_t *owner, uint32_t clock)
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: device_t(mconfig, type, tag, owner, clock)
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, device_spectrum_expansion_interface(mconfig, *this)
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, m_rom(*this, "rom")
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, m_fdc(*this, "fdc")
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@ -115,6 +136,16 @@ spectrum_kempdisc_device::spectrum_kempdisc_device(const machine_config &mconfig
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{
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}
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spectrum_kempdisc_device::spectrum_kempdisc_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock)
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: spectrum_kempdisc_device(mconfig, SPECTRUM_KEMPDISC, tag, owner, clock)
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{
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}
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spectrum_spdos_device::spectrum_spdos_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock)
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: spectrum_kempdisc_device(mconfig, SPECTRUM_SPDOS, tag, owner, clock)
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{
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}
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//-------------------------------------------------
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// device_start - device-specific startup
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//-------------------------------------------------
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@ -205,3 +236,54 @@ uint8_t spectrum_kempdisc_device::mreq_r(offs_t offset)
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return data;
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}
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void spectrum_spdos_device::iorq_w(offs_t offset, uint8_t data)
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{
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switch (offset & 0xff)
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{
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case 0xe5: case 0xe7: case 0xed: case 0xef:
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m_fdc->write(BIT(offset, 1) | (BIT(offset, 3) << 1), data);
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break;
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case 0xdf:
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{
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floppy_image_device* floppy = nullptr;
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for (int i = 1; i < 5; i++)
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if (BIT(data, i))
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{
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floppy = m_floppy[i - 1]->get_device();
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break;
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}
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// m_control = data;
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m_fdc->set_floppy(floppy);
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if (floppy) floppy->ss_w(BIT(data, 0));
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if (data & 0xe0)
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logerror("port DF unhandled %02X\n", data);
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m_romcs = 0;
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}
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break;
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// below probably is wrong/different for this device
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case 0xfd:
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m_romcs = 1;
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break;
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case 0xd7:
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m_romcs = 0;
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break;
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}
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m_exp->iorq_w(offset, data);
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}
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uint8_t spectrum_spdos_device::mreq_r(offs_t offset)
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{
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uint8_t data = 0xff;
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if (m_romcs)
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data = m_rom->base()[offset & 0x7ff];
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if (m_exp->romcs())
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data &= m_exp->mreq_r(offset);
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return data;
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}
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@ -30,6 +30,7 @@ public:
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DECLARE_FLOPPY_FORMATS(floppy_formats);
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protected:
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spectrum_kempdisc_device(const machine_config &mconfig, device_type type, const char *tag, device_t *owner, uint32_t clock);
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// device-level overrides
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virtual void device_start() override;
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virtual void device_reset() override;
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@ -59,9 +60,25 @@ protected:
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// u8 m_control;
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};
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class spectrum_spdos_device :
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public spectrum_kempdisc_device
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{
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public:
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// construction/destruction
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spectrum_spdos_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
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protected:
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// optional information overrides
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virtual const tiny_rom_entry *device_rom_region() const override;
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virtual void iorq_w(offs_t offset, uint8_t data) override;
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virtual uint8_t mreq_r(offs_t offset) override;
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};
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// device type definition
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DECLARE_DEVICE_TYPE(SPECTRUM_KEMPDISC, spectrum_kempdisc_device)
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DECLARE_DEVICE_TYPE(SPECTRUM_SPDOS, spectrum_spdos_device)
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#endif // MAME_BUS_SPECTRUM_KEMPDISC_H
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