Here are misc fixes done by VirtualBox team.
With these patches, floppy emulation is now good enough to run Xenix.
Hervé Poussineau (10):
fdc: take head count into account
fdc: set busy bit when starting a command
fdc: most control commands do not generate interrupts
fdc: emulate stepping 0
fdc: handle read-only floppies (abort early on write commands)
block: add a transfer rate for floppy types
fdc: check if media rate is correct before doing any transfer
fdc: add CCR (Configuration Control Register) write register
fdc: fix seek command, which shouldn't check tracks
fdc: DIR (Digital Input Register) should return status of current
drive...
block.c | 74 +++++++++++++++++++++-------------------
block.h | 10 +++++-
hw/fdc.c | 114 +++++++++++++++++++++++++++++++++++++++++++++----------------
hw/pc.c | 3 +-
4 files changed, 134 insertions(+), 67 deletions(-)
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1.7.7.3
