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- From: Claus Brod <clausb@hpbeo79.bbn.hp.com>
- Subject: Re: mint-aware HD driver
- Date: Fri, 10 Sep 93 16:11:17 MESZ
- Mailer: Elm [revision: 70.85]
-
- > All you need is the driver in two parts, the lower part being an interrupt
- > based hardware driver
- > which picks up requests (which included a pointer to a buffer) from a
- > queue and passes back "done" messages. The upper determines the device,
- > places a request on the queue, puts the process on the I/O pending queue and
- > returns.
- [...]
- > How's that?
-
- Not bad, although I'm concerned about the overhead that such a split
- driver would cause. But anyway, the driver's design is not the main
- problem, as I mentioned in my previous post.
-
- > But then all existing software for HD would have to be changed to use
- > >it correctly.
- >
- > Methinks this will have to be done anyway, the current ones busy idle as far
- > as I can tell.
-
- Why should old software *have* to be changed? Software that
- blocks I/O channels is annoying, but it's not really harmful, and
- it can still work in a multitasking environment. Let's be
- realistic: Most programmers do not invest any time in their old
- Atari programs and have moved to other projects/platforms, so it
- would be highly unadvisable to break old software *now*.
-
- --clausb@hpbeo79.bbn.hp.com-----------------------------------------------
- Claus Brod, MDD, HP Boeblingen Magic is real unless declared integer.
- --#include <std_disclaimer>-----------------------------------------------
-