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From: Jeff Sondeen (sondeen AT ISI DOT EDU)
Date: Wed Sep 17 2003 - 16:11:55 EDT

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    John Nestor writes:

 > We're using some old Suns with Magic 6.5 on them and have been able to
 > use the latest tech file OK, although certain special-purpose layers
 > don't show up quite right.  I've also used newer Unix versions successfully.

hmm, layers not displaying correctly suggests that you haven't
recompiled magic to extend the number of 'types' (loosely corresponds
to layers) that magic uses.  the readme discusses this, in the context
of getting errors loading the techfile, eg:

 ftp://ftp.isi.edu/pub/sondeen/magic/new/README

...
 4. What to do if you get these errors when magic starts up:

  XXX.tech27: line xx: section planes: Too many tile planes (max=20) 
  XXX.tech27: line xx: section cifinput:
  XXX.tech27: line xx: section xxx:
  XXX.tech27: line xx: section cifoutput:


it sounds like you can NOT get these errors, but still have a too low
limit on the number of 'types' (as that's usually a symptom of not
enough 'types', ie. when layer 'type' numbers are 'wrapping' around
to lower numbered types).

in that case, you might try using the 'light' version

 SCNA.80.light.tech27

which reduces the number of 'types' used (such as not defined types
for 'resistor' marker layers).

/jeff

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