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microsoft/jazz.cpp: Revert SCSI controller to 53C94 type due to flaws in 53CF94 emulation

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This commit is contained in:
AJR 2025-01-07 20:47:31 -05:00
parent 64f27e3be9
commit 10be60357a
1 changed files with 7 additions and 6 deletions
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13
src/mame/microsoft/jazz.cpp
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@ -155,7 +155,7 @@ protected:
required_device<ram_device> m_vram;
required_device<mct_adr_device> m_mct_adr;
required_device<nscsi_bus_device> m_scsibus;
required_device<ncr53cf94_device> m_scsi;
required_device<ncr53c94_device> m_scsi;
required_device<n82077aa_device> m_fdc;
required_device<mc146818_device> m_rtc;
required_device<nvram_device> m_nvram;
@ -220,7 +220,7 @@ void jazz_state::mct_map(address_map &map)
map(0x80000000, 0x80000fff).m(m_mct_adr, FUNC(mct_adr_device::map));
map(0x80001000, 0x800010ff).m(m_net, FUNC(dp83932c_device::map)).umask32(0x0000ffff);
map(0x80002000, 0x8000200f).m(m_scsi, FUNC(ncr53cf94_device::map));
map(0x80002000, 0x8000200f).m(m_scsi, FUNC(ncr53c94_device::map));
map(0x80003000, 0x8000300f).m(m_fdc, FUNC(n82077aa_device::map));
// LE: only reads 4000
@ -310,16 +310,17 @@ void jazz_state::jazz(machine_config &config)
NSCSI_CONNECTOR(config, "scsi:6", jazz_scsi_devices, "cdrom");
// scsi host adapter
NSCSI_CONNECTOR(config, "scsi:7").option_set("ncr53cf94", NCR53CF94).clock(24_MHz_XTAL).machine_config(
// FIXME: refuses to POST with correct NCR53CF94 device
NSCSI_CONNECTOR(config, "scsi:7").option_set("ncr53cf94", NCR53C94).clock(24_MHz_XTAL).machine_config(
[this] (device_t *device)
{
ncr53cf94_device &adapter = downcast<ncr53cf94_device &>(*device);
ncr53c94_device &adapter = downcast<ncr53c94_device &>(*device);
adapter.irq_handler_cb().set(m_mct_adr, FUNC(mct_adr_device::irq<5>));
adapter.drq_handler_cb().set(m_mct_adr, FUNC(mct_adr_device::drq<0>));
subdevice<mct_adr_device>(":mct_adr")->dma_r_cb<0>().set(adapter, FUNC(ncr53cf94_device::dma_r));
subdevice<mct_adr_device>(":mct_adr")->dma_w_cb<0>().set(adapter, FUNC(ncr53cf94_device::dma_w));
subdevice<mct_adr_device>(":mct_adr")->dma_r_cb<0>().set(adapter, FUNC(ncr53c94_device::dma_r));
subdevice<mct_adr_device>(":mct_adr")->dma_w_cb<0>().set(adapter, FUNC(ncr53c94_device::dma_w));
});
// floppy controller and drive