mirror of
https://github.com/holub/mame
synced 2025-04-24 01:11:11 +03:00
Add support for myb3k FDC4712
This commit is contained in:
Claire Kugelmann
parent
9a2d69ffc9
commit
36a5d81c19
@ -12,14 +12,12 @@
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- 1-4 x DSDD 80 tracks, 8 sectors/track, 512 bytes/sector 720KB
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FDC4712 - 8" FDD4733
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- 1-2 x DSDD 154 tracks, 8 sector/track, 1024 bytes/sector 1232KB
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- 1-4 x DSDD 154 tracks, 8 sector/track, 1024 bytes/sector 1232KB
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Step/One service manuals: http://nivelleringslikaren.eu/stepone/
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TODO:
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- Verify FDC4710 as soon as we find a 160Kb floppy image
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- Add FDC4712 8" as soon as we get a visual or schematics on it
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- Reduce code duplication by introducing a base class, once all are emulated
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- Put these into global ISA8 collection
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********************************************************************************/
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@ -49,21 +47,13 @@
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DEFINE_DEVICE_TYPE(ISA8_MYB3K_FDC4710, isa8_myb3k_fdc4710_device, "isa8_myb3k_fdc4710", "FDC4710 SSDD Floppy Disk Controller")
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DEFINE_DEVICE_TYPE(ISA8_MYB3K_FDC4711, isa8_myb3k_fdc4711_device, "isa8_myb3k_fdc4711", "FDC4711 DSDD Floppy Disk Controller")
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DEFINE_DEVICE_TYPE(ISA8_MYB3K_FDC4712, isa8_myb3k_fdc4712_device, "isa8_myb3k_fdc4712", "FDC4712 DSDD Floppy Disk Controller")
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void isa8_myb3k_fdc4710_device::map(address_map &map)
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void isa8_myb3k_fdc471x_device_base::map(address_map &map)
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{
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// AM_RANGE(0x00, 0x03) AM_DEVREADWRITE("fdc", mb8876_device, read, write) AM_MIRROR(0x500)
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map(0x00, 0x03).r(FUNC(isa8_myb3k_fdc4710_device::myb3k_inv_fdc_data_r)).w(FUNC(isa8_myb3k_fdc4710_device::myb3k_inv_fdc_data_w)).mirror(0x500);
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map(0x04, 0x04).w(FUNC(isa8_myb3k_fdc4710_device::myb3k_fdc_command)).mirror(0x500);
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map(0x05, 0x05).r(FUNC(isa8_myb3k_fdc4710_device::myb3k_fdc_status)).mirror(0x500);
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}
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void isa8_myb3k_fdc4711_device::map(address_map &map)
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{
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// AM_RANGE(0x00, 0x03) AM_DEVREADWRITE("fdc", fd1791_device, read, write) AM_MIRROR(0x500)
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map(0x00, 0x03).r(FUNC(isa8_myb3k_fdc4711_device::myb3k_inv_fdc_data_r)).w(FUNC(isa8_myb3k_fdc4711_device::myb3k_inv_fdc_data_w)).mirror(0x500);
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map(0x04, 0x04).w(FUNC(isa8_myb3k_fdc4711_device::myb3k_fdc_command)).mirror(0x500);
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map(0x05, 0x05).r(FUNC(isa8_myb3k_fdc4711_device::myb3k_fdc_status)).mirror(0x500);
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map(0x00, 0x03).r(FUNC(isa8_myb3k_fdc471x_device_base::myb3k_inv_fdc_data_r)).w(FUNC(isa8_myb3k_fdc471x_device_base::myb3k_inv_fdc_data_w));
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map(0x04, 0x04).w(FUNC(isa8_myb3k_fdc471x_device_base::myb3k_fdc_command));
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map(0x05, 0x05).r(FUNC(isa8_myb3k_fdc471x_device_base::myb3k_fdc_status));
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}
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FLOPPY_FORMATS_MEMBER( isa8_myb3k_fdc4710_device::myb3k_floppy_formats )
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@ -75,6 +65,10 @@ FLOPPY_FORMATS_MEMBER( isa8_myb3k_fdc4711_device::myb3k_floppy_formats )
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FLOPPY_IMD_FORMAT
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FLOPPY_FORMATS_END
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FLOPPY_FORMATS_MEMBER( isa8_myb3k_fdc4712_device::myb3k_floppy_formats )
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FLOPPY_IMD_FORMAT
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FLOPPY_FORMATS_END
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static void myb3k_sd_floppies(device_slot_interface &device)
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{
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device.option_add("525sd", FLOPPY_525_SD);
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@ -85,124 +79,105 @@ static void myb3k_qd_floppies(device_slot_interface &device)
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device.option_add("525qd", FLOPPY_525_QD);
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}
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#if 0
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static void myb3k_8inch_floppies(device_slot_interface &device)
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{
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device.option_add("8dsdd", FLOPPY_8_DSDD);
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}
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#endif
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//-------------------------------------------------
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// device_add_mconfig - add device configuration
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//-------------------------------------------------
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/* */
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void isa8_myb3k_fdc471x_device_base::device_add_mconfig(machine_config &config)
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{
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m_fdc->intrq_wr_callback().set(FUNC(isa8_myb3k_fdc471x_device_base::irq_w));
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m_fdc->drq_wr_callback().set(FUNC(isa8_myb3k_fdc471x_device_base::drq_w));
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}
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void isa8_myb3k_fdc4710_device::device_add_mconfig(machine_config &config)
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{
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MB8876(config, m_fdc, XTAL(15'974'400) / 8); /* From StepOne schematics */
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m_fdc->intrq_wr_callback().set(FUNC(isa8_myb3k_fdc4710_device::irq_w));
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m_fdc->drq_wr_callback().set(FUNC(isa8_myb3k_fdc4710_device::drq_w));
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FLOPPY_CONNECTOR(config, m_fdd0, myb3k_sd_floppies, "525sd", isa8_myb3k_fdc4710_device::myb3k_floppy_formats);
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FLOPPY_CONNECTOR(config, m_fdd1, myb3k_sd_floppies, "525sd", isa8_myb3k_fdc4710_device::myb3k_floppy_formats);
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FLOPPY_CONNECTOR(config, m_floppy_connectors[0], myb3k_sd_floppies, "525sd", isa8_myb3k_fdc4710_device::myb3k_floppy_formats);
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FLOPPY_CONNECTOR(config, m_floppy_connectors[1], myb3k_sd_floppies, "525sd", isa8_myb3k_fdc4710_device::myb3k_floppy_formats);
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isa8_myb3k_fdc471x_device_base::device_add_mconfig(config);
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}
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/* Main difference from fdc4710 is that a Hitachi HA16632AP has replaced the discrete VFO enabling 720Kb disks */
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void isa8_myb3k_fdc4711_device::device_add_mconfig(machine_config &config)
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{
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FD1791(config, m_fdc, XTAL(15'974'400) / 16);
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m_fdc->intrq_wr_callback().set(FUNC(isa8_myb3k_fdc4711_device::irq_w));
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m_fdc->drq_wr_callback().set(FUNC(isa8_myb3k_fdc4711_device::drq_w));
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FLOPPY_CONNECTOR(config, m_fdd0, myb3k_qd_floppies, "525qd", isa8_myb3k_fdc4711_device::myb3k_floppy_formats);
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FLOPPY_CONNECTOR(config, m_fdd1, myb3k_qd_floppies, "525qd", isa8_myb3k_fdc4711_device::myb3k_floppy_formats);
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FLOPPY_CONNECTOR(config, m_fdd2, myb3k_qd_floppies, "525qd", isa8_myb3k_fdc4711_device::myb3k_floppy_formats);
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FLOPPY_CONNECTOR(config, m_fdd3, myb3k_qd_floppies, "525qd", isa8_myb3k_fdc4711_device::myb3k_floppy_formats);
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MB8876(config, m_fdc, XTAL(15'974'400) / 16);
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FLOPPY_CONNECTOR(config, m_floppy_connectors[0], myb3k_qd_floppies, "525qd", isa8_myb3k_fdc4711_device::myb3k_floppy_formats);
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FLOPPY_CONNECTOR(config, m_floppy_connectors[1], myb3k_qd_floppies, "525qd", isa8_myb3k_fdc4711_device::myb3k_floppy_formats);
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FLOPPY_CONNECTOR(config, m_floppy_connectors[2], myb3k_qd_floppies, "525qd", isa8_myb3k_fdc4711_device::myb3k_floppy_formats);
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FLOPPY_CONNECTOR(config, m_floppy_connectors[3], myb3k_qd_floppies, "525qd", isa8_myb3k_fdc4711_device::myb3k_floppy_formats);
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isa8_myb3k_fdc471x_device_base::device_add_mconfig(config);
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}
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#if 0
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void isa8_myb3k_fdc4712_device::device_add_mconfig(machine_config &config)
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{
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FD1791(config, m_fdc, XTAL(15'974'400) / 8);
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m_fdc->intrq_wr_callback().set(FUNC(isa8_myb3k_fdc4712_device::irq_w));
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m_fdc->drq_wr_callback().set(FUNC(isa8_myb3k_fdc4712_device::drq_w));
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FLOPPY_CONNECTOR(config, m_fdd0, myb3k_8inch_floppies, "8dsdd", isa8_myb3k_fdc4712_device::myb3k_floppy_formats);
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FLOPPY_CONNECTOR(config, m_fdd1, myb3k_8inch_floppies, "8dsdd", isa8_myb3k_fdc4712_device::myb3k_floppy_formats);
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MB8876(config, m_fdc, XTAL(15'974'400) / 8);
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FLOPPY_CONNECTOR(config, m_floppy_connectors[0], myb3k_8inch_floppies, "8dsdd", isa8_myb3k_fdc4712_device::myb3k_floppy_formats);
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FLOPPY_CONNECTOR(config, m_floppy_connectors[1], myb3k_8inch_floppies, "8dsdd", isa8_myb3k_fdc4712_device::myb3k_floppy_formats);
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FLOPPY_CONNECTOR(config, m_floppy_connectors[2], myb3k_8inch_floppies, "8dsdd", isa8_myb3k_fdc4712_device::myb3k_floppy_formats);
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FLOPPY_CONNECTOR(config, m_floppy_connectors[3], myb3k_8inch_floppies, "8dsdd", isa8_myb3k_fdc4712_device::myb3k_floppy_formats);
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isa8_myb3k_fdc471x_device_base::device_add_mconfig(config);
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}
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#endif
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//**************************************************************************
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// LIVE DEVICES
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//**************************************************************************
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isa8_myb3k_fdc4710_device::isa8_myb3k_fdc4710_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_isa8_card_interface(mconfig, *this)
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, m_fdc(*this, "fdc")
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, m_fdd0(*this, "fdc:0")
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, m_fdd1(*this, "fdc:1")
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isa8_myb3k_fdc471x_device_base::isa8_myb3k_fdc471x_device_base(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_isa8_card_interface(mconfig, *this),
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m_fdc(*this, "fdc"),
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m_floppy_connectors(*this, "fdc:%u", 0)
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{
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}
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isa8_myb3k_fdc4710_device::isa8_myb3k_fdc4710_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock) : isa8_myb3k_fdc4710_device(mconfig, ISA8_MYB3K_FDC4710, tag, owner, clock)
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isa8_myb3k_fdc4710_device::isa8_myb3k_fdc4710_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock) :
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isa8_myb3k_fdc471x_device_base(mconfig, ISA8_MYB3K_FDC4710, tag, owner, clock)
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{
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has_motor_control = true;
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io_base = 0x20;
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dma_channel = 2;
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}
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isa8_myb3k_fdc4711_device::isa8_myb3k_fdc4711_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_isa8_card_interface(mconfig, *this)
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, m_fdc(*this, "fdc")
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, m_fdd0(*this, "fdc:0")
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, m_fdd1(*this, "fdc:1")
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, m_fdd2(*this, "fdc:2")
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, m_fdd3(*this, "fdc:3")
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isa8_myb3k_fdc4711_device::isa8_myb3k_fdc4711_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock) :
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isa8_myb3k_fdc471x_device_base(mconfig, ISA8_MYB3K_FDC4711, tag, owner, clock)
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{
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has_motor_control = true;
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io_base = 0x20;
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dma_channel = 2;
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}
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isa8_myb3k_fdc4711_device::isa8_myb3k_fdc4711_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock) : isa8_myb3k_fdc4711_device(mconfig, ISA8_MYB3K_FDC4711, tag, owner, clock)
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isa8_myb3k_fdc4712_device::isa8_myb3k_fdc4712_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock) :
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isa8_myb3k_fdc471x_device_base(mconfig, ISA8_MYB3K_FDC4712, tag, owner, clock),
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selected_drive(0)
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{
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has_motor_control = false;
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io_base = 0x520;
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dma_channel = 1;
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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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void isa8_myb3k_fdc4710_device::device_start()
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void isa8_myb3k_fdc471x_device_base::device_start()
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{
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LOG("%s\n", FUNCNAME);
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set_isa_device();
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m_isa->set_dma_channel(2, this, true);
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m_isa->install_device(0x020, 0x027, *this, &isa8_myb3k_fdc4710_device::map);
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}
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void isa8_myb3k_fdc4711_device::device_start()
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{
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LOG("%s\n", FUNCNAME);
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set_isa_device();
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m_isa->install_device(0x020, 0x027, *this, &isa8_myb3k_fdc4711_device::map);
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m_isa->set_dma_channel(2, this, true);
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}
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//-------------------------------------------------
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// device_reset - device-specific reset
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//-------------------------------------------------
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void isa8_myb3k_fdc4710_device::device_reset()
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{
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LOG("%s\n", FUNCNAME);
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}
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void isa8_myb3k_fdc4711_device::device_reset()
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{
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LOG("%s\n", FUNCNAME);
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m_isa->install_device(io_base, io_base + 7, *this, &isa8_myb3k_fdc471x_device_base::map);
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m_isa->set_dma_channel(dma_channel, this, true);
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}
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//-------------------------------------------------
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// irq_w - signal interrupt request to ISA bus
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//-------------------------------------------------
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WRITE_LINE_MEMBER( isa8_myb3k_fdc4710_device::irq_w )
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{
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LOG("%s: %d\n", FUNCNAME, state);
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m_isa->irq6_w(state ? ASSERT_LINE : CLEAR_LINE);
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}
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WRITE_LINE_MEMBER( isa8_myb3k_fdc4711_device::irq_w )
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WRITE_LINE_MEMBER( isa8_myb3k_fdc471x_device_base::irq_w )
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{
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LOG("%s: %d\n", FUNCNAME, state);
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m_isa->irq6_w(state ? ASSERT_LINE : CLEAR_LINE);
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@ -211,27 +186,25 @@ WRITE_LINE_MEMBER( isa8_myb3k_fdc4711_device::irq_w )
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//-------------------------------------------------
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// drq_w - signal dma request to ISA bus
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//-------------------------------------------------
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WRITE_LINE_MEMBER( isa8_myb3k_fdc4710_device::drq_w )
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WRITE_LINE_MEMBER( isa8_myb3k_fdc471x_device_base::drq_w )
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{
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LOG("%s: %d\n", FUNCNAME, state);
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m_isa->drq2_w(state ? ASSERT_LINE : CLEAR_LINE);
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}
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WRITE_LINE_MEMBER( isa8_myb3k_fdc4711_device::drq_w )
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{
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LOG("%s: %d\n", FUNCNAME, state);
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m_isa->drq2_w(state ? ASSERT_LINE : CLEAR_LINE);
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switch (dma_channel)
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{
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case 1:
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m_isa->drq1_w(state);
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case 2:
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m_isa->drq2_w(state);
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default:
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break;
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}
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}
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//-------------------------------------------------
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// dack_r - return FDC data trough DMA
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// dack_r - return FDC data through DMA
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//-------------------------------------------------
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uint8_t isa8_myb3k_fdc4710_device::dack_r(int line)
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{
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return ~(m_fdc->data_r());
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}
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uint8_t isa8_myb3k_fdc4711_device::dack_r(int line)
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uint8_t isa8_myb3k_fdc471x_device_base::dack_r(int line)
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{
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return ~(m_fdc->data_r());
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}
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@ -239,23 +212,13 @@ uint8_t isa8_myb3k_fdc4711_device::dack_r(int line)
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//-------------------------------------------------
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// dack_w - write DMA data to FDC
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//-------------------------------------------------
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void isa8_myb3k_fdc4710_device::dack_w(int line, uint8_t data)
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{
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return m_fdc->data_w(data);
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}
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void isa8_myb3k_fdc4711_device::dack_w(int line, uint8_t data)
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void isa8_myb3k_fdc471x_device_base::dack_w(int line, uint8_t data)
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{
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return m_fdc->data_w(data);
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}
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#if 0 // eop/tc is used to for logic around multi sector transfers
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void isa8_myb3k_fdc4710_device::eop_w(int state)
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{
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m_fdc->tc_w(state == ASSERT_LINE);
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}
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void isa8_myb3k_fdc4711_device::eop_w(int state)
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void isa8_myb3k_fdc471x_device_base::eop_w(int state)
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{
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m_fdc->tc_w(state == ASSERT_LINE);
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}
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@ -264,14 +227,7 @@ void isa8_myb3k_fdc4711_device::eop_w(int state)
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//--------------------------------------------------------
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// myb3k_inv_fdc_data_r - a LS240 inverts databus for FDC
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//--------------------------------------------------------
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READ8_MEMBER( isa8_myb3k_fdc4710_device::myb3k_inv_fdc_data_r )
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{
|
||||
uint8_t tmp = m_fdc->read(offset);
|
||||
LOGR("%s: %02x -> %02x\n", FUNCNAME, tmp, (~tmp) & 0xff);
|
||||
return ~tmp;
|
||||
}
|
||||
|
||||
READ8_MEMBER( isa8_myb3k_fdc4711_device::myb3k_inv_fdc_data_r )
|
||||
READ8_MEMBER( isa8_myb3k_fdc471x_device_base::myb3k_inv_fdc_data_r )
|
||||
{
|
||||
uint8_t tmp = m_fdc->read(offset);
|
||||
LOGR("%s: %02x -> %02x\n", FUNCNAME, tmp, (~tmp) & 0xff);
|
||||
@ -281,13 +237,7 @@ READ8_MEMBER( isa8_myb3k_fdc4711_device::myb3k_inv_fdc_data_r )
|
||||
//--------------------------------------------------------
|
||||
// myb3k_inv_fdc_data_w - a LS240 inverts databus for FDC
|
||||
//--------------------------------------------------------
|
||||
WRITE8_MEMBER( isa8_myb3k_fdc4710_device::myb3k_inv_fdc_data_w )
|
||||
{
|
||||
LOG("%s: %02x -> %02x\n", FUNCNAME, data, (~data) & 0xff);
|
||||
m_fdc->write(offset, (~data) & 0xff);
|
||||
}
|
||||
|
||||
WRITE8_MEMBER( isa8_myb3k_fdc4711_device::myb3k_inv_fdc_data_w )
|
||||
WRITE8_MEMBER( isa8_myb3k_fdc471x_device_base::myb3k_inv_fdc_data_w )
|
||||
{
|
||||
LOG("%s: %02x -> %02x\n", FUNCNAME, data, (~data) & 0xff);
|
||||
m_fdc->write(offset, (~data) & 0xff);
|
||||
@ -296,84 +246,73 @@ WRITE8_MEMBER( isa8_myb3k_fdc4711_device::myb3k_inv_fdc_data_w )
|
||||
//-------------------------------------------------
|
||||
// myb3k_fdc_command - descrete fdc card features
|
||||
//-------------------------------------------------
|
||||
WRITE8_MEMBER( isa8_myb3k_fdc4710_device::myb3k_fdc_command )
|
||||
{
|
||||
data = ~data;
|
||||
LOG("%s: %02x\n", FUNCNAME, data);
|
||||
LOGCMD(" - Drive %d\n", ~data & FDC_DRIVE_SEL);
|
||||
LOGCMD(" - Side %d\n", (data & FDC_SIDE_SEL) ? 0 : 1);
|
||||
LOGCMD(" - Motor %s\n", (data & FDC_MOTOR_ON) ? "OFF" : "ON");
|
||||
LOGCMD(" - Density %s\n", (data & FDC_DDEN) ? "FM" : "MFM");
|
||||
|
||||
WRITE8_MEMBER( isa8_myb3k_fdc471x_device_base::myb3k_fdc_command )
|
||||
{
|
||||
LOG("%s: %02x\n", FUNCNAME, data);
|
||||
|
||||
auto selected_drive = data & FDC_DRIVE_SEL;
|
||||
auto selected_side = (data & FDC_SIDE_SEL) ? 1 : 0;
|
||||
bool motor_on = (data & FDC_MOTOR_ON) != 0;
|
||||
bool dden = (data & FDC_DDEN) != 0;
|
||||
|
||||
LOGCMD(" - Drive %d\n", selected_drive);
|
||||
LOGCMD(" - Side %d\n", selected_side);
|
||||
LOGCMD(" - Density %s\n", dden ? "MFM" : "FM");
|
||||
|
||||
if (has_motor_control)
|
||||
LOGCMD(" - Motor %s\n", motor_on ? "ON" : "OFF");
|
||||
|
||||
auto floppy_connector = m_floppy_connectors[selected_drive];
|
||||
floppy_image_device *floppy = nullptr;
|
||||
|
||||
switch(~data & FDC_DRIVE_SEL) // Y0-Y3 on a '139 maps to drive 4 to 1 respectively
|
||||
{
|
||||
case 0:floppy = m_fdd0->get_device(); break;
|
||||
case 1:floppy = m_fdd1->get_device(); break;
|
||||
}
|
||||
if (floppy_connector.found())
|
||||
floppy = floppy_connector->get_device();
|
||||
|
||||
m_fdc->set_floppy(floppy);
|
||||
|
||||
if (floppy)
|
||||
if (floppy != nullptr)
|
||||
{
|
||||
LOGCMD(" - Floppy found\n");
|
||||
m_fdc->set_floppy(floppy);
|
||||
floppy->ss_w((data & FDC_SIDE_SEL) ? 0 : 1);
|
||||
floppy->mon_w((data & FDC_MOTOR_ON) ? 1 : 0); // Active low and inverter on incomming data line
|
||||
}
|
||||
else
|
||||
{
|
||||
LOGCMD(" - Floppy not found\n");
|
||||
}
|
||||
m_fdc->dden_w((data & FDC_DDEN) ? 1 : 0); // active low == MFM
|
||||
floppy->ss_w(selected_side);
|
||||
|
||||
if (has_motor_control)
|
||||
floppy->mon_w(motor_on ? 0 : 1); // Active low and inverter on incoming data line
|
||||
}
|
||||
|
||||
m_fdc->dden_w(dden ? 0 : 1); // active low == MFM
|
||||
}
|
||||
|
||||
WRITE8_MEMBER( isa8_myb3k_fdc4711_device::myb3k_fdc_command )
|
||||
WRITE8_MEMBER( isa8_myb3k_fdc4712_device::myb3k_fdc_command )
|
||||
{
|
||||
data = ~data;
|
||||
LOG("%s: %02x\n", FUNCNAME, data);
|
||||
LOGCMD(" - Drive %d\n", ~data & FDC_DRIVE_SEL);
|
||||
LOGCMD(" - Side %d\n", (data & FDC_SIDE_SEL) ? 0 : 1);
|
||||
LOGCMD(" - Motor %s\n", (data & FDC_MOTOR_ON) ? "OFF" : "ON");
|
||||
LOGCMD(" - Density %s\n", (data & FDC_DDEN) ? "FM" : "MFM");
|
||||
|
||||
floppy_image_device *floppy = nullptr;
|
||||
|
||||
switch(~data & FDC_DRIVE_SEL) // Y0-Y3 on a '139 maps to drive 4 to 1 respectively
|
||||
{
|
||||
case 0:floppy = m_fdd0->get_device(); break;
|
||||
case 1:floppy = m_fdd1->get_device(); break;
|
||||
case 2:floppy = m_fdd2->get_device(); break;
|
||||
case 3:floppy = m_fdd3->get_device(); break;
|
||||
}
|
||||
|
||||
if (floppy)
|
||||
{
|
||||
LOGCMD(" - Floppy found\n");
|
||||
m_fdc->set_floppy(floppy);
|
||||
floppy->ss_w((data & FDC_SIDE_SEL) ? 0 : 1);
|
||||
floppy->mon_w((data & FDC_MOTOR_ON) ? 1 : 0); // Active low and inverter on incomming data line
|
||||
}
|
||||
else
|
||||
{
|
||||
LOGCMD(" - Floppy not found\n");
|
||||
}
|
||||
m_fdc->dden_w((data & FDC_DDEN) ? 1 : 0); // active low == MFM
|
||||
selected_drive = data & FDC_DRIVE_SEL;
|
||||
isa8_myb3k_fdc471x_device_base::myb3k_fdc_command(space, offset, data, mem_mask);
|
||||
}
|
||||
|
||||
//-------------------------------------------------
|
||||
// myb3k_fdc_status - descrete fdc card status
|
||||
// myb3k_fdc_status - discrete fdc card status
|
||||
//-------------------------------------------------
|
||||
#define FDC_MSM_END_IR 0x01
|
||||
READ8_MEMBER( isa8_myb3k_fdc4710_device::myb3k_fdc_status )
|
||||
|
||||
READ8_MEMBER( isa8_myb3k_fdc471x_device_base::myb3k_fdc_status )
|
||||
{
|
||||
LOG("%s\n", FUNCNAME);
|
||||
|
||||
// TODO: return the multi sector mode interrupt status
|
||||
return 0x00;
|
||||
}
|
||||
|
||||
READ8_MEMBER( isa8_myb3k_fdc4711_device::myb3k_fdc_status )
|
||||
READ8_MEMBER( isa8_myb3k_fdc4712_device::myb3k_fdc_status )
|
||||
{
|
||||
LOG("%s\n", FUNCNAME);
|
||||
// TODO: return the multi sector mode interrupt status
|
||||
return 0x00;
|
||||
uint8_t status = isa8_myb3k_fdc471x_device_base::myb3k_fdc_status(space, offset, mem_mask);
|
||||
|
||||
auto floppy_connector = m_floppy_connectors[selected_drive];
|
||||
floppy_image_device *floppy = nullptr;
|
||||
|
||||
if (floppy_connector.found())
|
||||
floppy = floppy_connector->get_device();
|
||||
|
||||
if (floppy != nullptr && !floppy->twosid_r())
|
||||
status |= FDC_STATUS_DOUBLE_SIDED;
|
||||
|
||||
return status;
|
||||
}
|
||||
|
||||
@ -15,23 +15,55 @@
|
||||
#include "machine/wd_fdc.h"
|
||||
#include "formats/imd_dsk.h"
|
||||
|
||||
class isa8_myb3k_fdc471x_base
|
||||
class isa8_myb3k_fdc471x_device_base :
|
||||
public device_t,
|
||||
public device_isa8_card_interface
|
||||
{
|
||||
protected:
|
||||
enum {
|
||||
FDC_MSM_MODE = 0x40,
|
||||
FDC_DDEN = 0x20,
|
||||
//FDC_MOTOR_ON = 0x10, // According to service manual but not schematics and BIOS
|
||||
FDC_SIDE_SEL = 0x08,
|
||||
FDC_MOTOR_ON = 0x04, // According to schematics but "Motor Cont" according to service manual
|
||||
isa8_myb3k_fdc471x_device_base(const machine_config &mconfig, device_type type, const char *tag, device_t *owner, uint32_t clock);
|
||||
|
||||
// device-level overrides
|
||||
virtual void device_add_mconfig(machine_config &config) override;
|
||||
virtual void device_start() override;
|
||||
virtual void device_reset() override { };
|
||||
|
||||
void map(address_map &map);
|
||||
|
||||
virtual uint8_t dack_r(int line) override;
|
||||
virtual void dack_w(int line, uint8_t data) override;
|
||||
// virtual void eop_w(int state) override;
|
||||
|
||||
virtual DECLARE_READ8_MEMBER(myb3k_inv_fdc_data_r);
|
||||
virtual DECLARE_WRITE8_MEMBER(myb3k_inv_fdc_data_w);
|
||||
virtual DECLARE_READ8_MEMBER(myb3k_fdc_status);
|
||||
virtual DECLARE_WRITE8_MEMBER(myb3k_fdc_command);
|
||||
|
||||
DECLARE_WRITE_LINE_MEMBER( irq_w );
|
||||
DECLARE_WRITE_LINE_MEMBER( drq_w );
|
||||
|
||||
required_device<mb8876_device> m_fdc;
|
||||
optional_device_array<floppy_connector, 4> m_floppy_connectors;
|
||||
|
||||
offs_t io_base;
|
||||
int dma_channel;
|
||||
|
||||
bool has_motor_control;
|
||||
|
||||
enum FDC_COMMAND {
|
||||
FDC_DRIVE_SEL = 0x03,
|
||||
FDC_MOTOR_ON = 0x04, // According to schematics but "Motor Cont" according to service manual
|
||||
FDC_SIDE_SEL = 0x08,
|
||||
//FDC_MOTOR_ON = 0x10, // According to service manual but not schematics and BIOS
|
||||
FDC_DDEN = 0x20,
|
||||
FDC_MSM_MODE = 0x40,
|
||||
};
|
||||
|
||||
enum FDC_STATUS {
|
||||
FDC_STATUS_DOUBLE_SIDED = 0x04,
|
||||
};
|
||||
};
|
||||
|
||||
class isa8_myb3k_fdc4710_device :
|
||||
public device_t,
|
||||
public device_isa8_card_interface,
|
||||
public isa8_myb3k_fdc471x_base
|
||||
class isa8_myb3k_fdc4710_device : public isa8_myb3k_fdc471x_device_base
|
||||
{
|
||||
public:
|
||||
// construction/destruction
|
||||
@ -43,33 +75,12 @@ protected:
|
||||
|
||||
// device-level overrides
|
||||
virtual void device_add_mconfig(machine_config &config) override;
|
||||
virtual void device_start() override;
|
||||
virtual void device_reset() override;
|
||||
|
||||
virtual uint8_t dack_r(int line) override;
|
||||
virtual void dack_w(int line, uint8_t data) override;
|
||||
// virtual void eop_w(int state) override;
|
||||
|
||||
DECLARE_READ8_MEMBER(myb3k_inv_fdc_data_r);
|
||||
DECLARE_WRITE8_MEMBER(myb3k_inv_fdc_data_w);
|
||||
DECLARE_READ8_MEMBER(myb3k_fdc_status);
|
||||
DECLARE_WRITE8_MEMBER(myb3k_fdc_command);
|
||||
void map(address_map &map);
|
||||
|
||||
required_device<mb8876_device> m_fdc;
|
||||
required_device<floppy_connector> m_fdd0;
|
||||
optional_device<floppy_connector> m_fdd1;
|
||||
|
||||
private:
|
||||
DECLARE_WRITE_LINE_MEMBER( irq_w );
|
||||
DECLARE_WRITE_LINE_MEMBER( drq_w );
|
||||
DECLARE_FLOPPY_FORMATS( myb3k_floppy_formats );
|
||||
};
|
||||
|
||||
class isa8_myb3k_fdc4711_device :
|
||||
public device_t,
|
||||
public device_isa8_card_interface,
|
||||
public isa8_myb3k_fdc471x_base
|
||||
class isa8_myb3k_fdc4711_device : public isa8_myb3k_fdc471x_device_base
|
||||
{
|
||||
public:
|
||||
// construction/destruction
|
||||
@ -81,34 +92,36 @@ protected:
|
||||
|
||||
// device-level overrides
|
||||
virtual void device_add_mconfig(machine_config &config) override;
|
||||
virtual void device_start() override;
|
||||
virtual void device_reset() override;
|
||||
|
||||
virtual uint8_t dack_r(int line) override;
|
||||
virtual void dack_w(int line, uint8_t data) override;
|
||||
// virtual void eop_w(int state) override;
|
||||
|
||||
DECLARE_READ8_MEMBER(myb3k_inv_fdc_data_r);
|
||||
DECLARE_WRITE8_MEMBER(myb3k_inv_fdc_data_w);
|
||||
DECLARE_READ8_MEMBER(myb3k_fdc_status);
|
||||
DECLARE_WRITE8_MEMBER(myb3k_fdc_command);
|
||||
void map(address_map &map);
|
||||
|
||||
required_device<fd1791_device> m_fdc;
|
||||
required_device<floppy_connector> m_fdd0;
|
||||
optional_device<floppy_connector> m_fdd1;
|
||||
optional_device<floppy_connector> m_fdd2;
|
||||
optional_device<floppy_connector> m_fdd3;
|
||||
|
||||
private:
|
||||
DECLARE_WRITE_LINE_MEMBER( irq_w );
|
||||
DECLARE_WRITE_LINE_MEMBER( drq_w );
|
||||
DECLARE_FLOPPY_FORMATS( myb3k_floppy_formats );
|
||||
};
|
||||
|
||||
class isa8_myb3k_fdc4712_device : public isa8_myb3k_fdc471x_device_base
|
||||
{
|
||||
public:
|
||||
// construction/destruction
|
||||
isa8_myb3k_fdc4712_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
|
||||
|
||||
protected:
|
||||
// construction/destruction
|
||||
isa8_myb3k_fdc4712_device(const machine_config &mconfig, device_type type, const char *tag, device_t *owner, uint32_t clock);
|
||||
|
||||
// device-level overrides
|
||||
virtual void device_add_mconfig(machine_config &config) override;
|
||||
|
||||
virtual DECLARE_WRITE8_MEMBER(myb3k_fdc_command) override;
|
||||
virtual DECLARE_READ8_MEMBER(myb3k_fdc_status) override;
|
||||
|
||||
uint8_t selected_drive;
|
||||
|
||||
private:
|
||||
DECLARE_FLOPPY_FORMATS( myb3k_floppy_formats );
|
||||
};
|
||||
|
||||
// device type definition
|
||||
DECLARE_DEVICE_TYPE(ISA8_MYB3K_FDC4710, isa8_myb3k_fdc4710_device)
|
||||
DECLARE_DEVICE_TYPE(ISA8_MYB3K_FDC4711, isa8_myb3k_fdc4711_device)
|
||||
//DECLARE_DEVICE_TYPE(ISA8_MYB3K_FDC4712, isa8_myb3k_fdc4712_device)
|
||||
DECLARE_DEVICE_TYPE(ISA8_MYB3K_FDC4712, isa8_myb3k_fdc4712_device)
|
||||
|
||||
#endif // MAME_BUS_ISA_MYB3K_FDC_H
|
||||
|
||||
@ -928,6 +928,7 @@ static void stepone_isa_cards(device_slot_interface &device)
|
||||
device.option_add("myb3k_com", ISA8_MYB3K_COM);
|
||||
device.option_add("myb3k_fdc4710", ISA8_MYB3K_FDC4710);
|
||||
device.option_add("myb3k_fdc4711", ISA8_MYB3K_FDC4711);
|
||||
device.option_add("myb3k_fdc4712", ISA8_MYB3K_FDC4712);
|
||||
}
|
||||
|
||||
void myb3k_state::myb3k(machine_config &config)
|
||||
|
||||
Loading…
Reference in New Issue
Block a user