Just as a side issue, with regards to Sim Coupe... (sorry for the
quick change of topic!)
This is probably a daft question, as I think I've read about the issue
elsewhere, so forgive me... but is there no way to read/write to
external USB floppy drives? Just thinking of my own case, and others
are probably similar, where I use my laptop 99.9% of the time these
days (and of course modern laptops don't have a built-in floppy drive.
Not to mention, there are increasingly fewer desktop systems that
include floppy drives these days anyway, so even people using desktops
are increasingly likely to find it easier using external plug-in drives.
Is it a complete impossibility? ;-)
Quoting Simon Owen <simon.o...@simcoupe.org>:
On 4 Apr 2011, at 16:02, Simon Cooke wrote:
If SimCoupe uses rdtsc without setting the CPU thread affinity,
there are issues on some systems where it loses track when the
thread is scheduled onto another CPU core. Usually a bios update
can fix this, or switching to use QueryPerformanceCounter.
It did use QPC, but only for sub-system profiling within the
emulator. That was becoming increasingly meaningless with
multi-core systems, so I stripped it out a couple of months back!
Knowing the running speed and the framerate should be more than
enough for most users.
I remember taking special care of the issue in my floppy driver,
where even kernel QPC could use up using different timestamps on
some systems. There were fix utilities available to forcibly sync
them, and I believe modern systems should use more reliable time
sources. Nasty stuff though!
Si
