Path: utzoo!attcan!uunet!husc6!cs.utexas.edu!utastro!bill
From: bill@utastro.UUCP (William H. Jefferys)
Newsgroups: comp.sys.mac.programmer
Subject: Detecting and Using 68881 when it is installed
Message-ID: <3226@utastro.UUCP>
Date: 6 Oct 88 14:51:55 GMT
Organization: U. Texas, Astronomy, Austin, TX
Lines: 29

We have an application that we would like to set up so that
the 68881 will be used if it is available, but that will still
run on a Mac+/SE if it is not available.

We are using THINK C v. 3.0x.

This seems to boil down to two tasks. First, how do we tell
that the 68881/68020 combination is installed?

Second, having done this, how do we arrange to execute one
version of the program if they are there, and another version
if they are not? Obviously, we don't want to have both versions
loaded at the same time as that would waste space; I assume that
the answer is to have the main program call one of two different
code resources. (The discussion on calling code resources is
presumably relevant).

If this is the case, (or if it is not the case), how do we
set things up, using THINK C, to accomplish our end?

Thanks for any assistance from the net.

Bill Jefferys
University of Texas Astronomy Dept.

-- 
Glend.	I can call spirits from the vasty deep.
Hot.	Why, so can I, or so can any man; But will they come when you
	do call for them?    --  Henry IV Pt. I, III, i, 53