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- Newsgroups: comp.sys.apple2
- Path: sparky!uunet!newsstand.cit.cornell.edu!piccolo.cit.cornell.edu!crux2!jmk3
- From: jmk3@crux2.cit.cornell.edu (Jay M. Krell)
- Subject: Re: FPE questions
- Message-ID: <jmk3.721357658@crux1.cit.cornell.edu>
- Sender: news@piccolo.cit.cornell.edu (USENET News System)
- Nntp-Posting-Host: crux2.cit.cornell.edu
- Organization: Cornell Information Technologies
- References: <1992Nov9.165849.29466@ifi.unizh.ch>
- Date: 10 Nov 92 01:07:38 GMT
- Lines: 40
-
- >From: gudat@avalon.physik.unizh.ch (gudat henrik)
- >Subject: FPE questions
-
- >Those who own a FPE - I need your help. Please answer the following
- >questions:
-
- >- I'd like to make GSymbolix compatible with the FPE. I'm planning to
- >make use of this card directly without going throiugh the toolbox first.
- >(I think the manual describes thgis method quite well..)
- >Question: the program must work with the FPE even when the slot is not
- >set to your card - similar to ProTerm.
- >What programming techniques are needed to do this? Since life is quite
- >ciomplex, I guess that simply switching the bit in the slot register is
- >not enough...
-
- >- What's the most recent version of the FPE? I heard that early
- >version(s) do not work with Zips (or TWGS, don't know)..
-
- Henrik,
- I don't own an FPE, but I believe there was a compatability problem between
- the FPE and TWGS. I've heard of fixes for the FPE and TWGS. I read that the
- TWGS change was simple but AE never bothered to make it standard. I've read of
- no problems between the Zip and FPW.
- Why don't you just keep calling SANE and let the FPE software take care of
- the dirty work? Also, I believe ORCA/C generates code to go directly to the
- FPE. Disabling interrupts and fiddling with the slot register at $C02D would
- suffice, but the more correct, Apple-recommended method would be to use the
- Slot Arbiter. As I don't have Slot Arbiter docs, I imagine they are in the
- GS/OS Device Driver Ref. I'd hate to have to fiddle with the Slot Arbiter every
- time, but I also imagine some calculations (and the quantity thereof) would
- have you disabling interrupts for too long if you mess with $C02D directly.
-
- You can't literally work with the FPE "similar to Proterm". The SCC
- softswitches are not in slot space, so PT can get to them w/o worrying about
- the slot settings.
-
-
- --Jay, jay.krell@cornell.edu
- :write
-
-