
Notes for 4MB users
===================

If you want to use TeX and Metafont with a 4MB machine you should
download the lowmemory.zip file. It contains binaries which use less
memory. Install the file by unpacking it on top of our !TeX application.
It won't overwrite anything.

Now the commands *TeX, *LaTeX and *MF will use the small binaries. If
you have enough memory to use the big versions you can use the *bigTeX,
*bigLaTeX and *bigMF commands.

Unfortunately the format and base files are not compatible with the ones
used by the big binaries. The special formats for the small binaries are
kept in the directory LowMemory.armtex.format-s (and base-s). The
obey files will switch paths automatically by setting TeXFormats$Path
and MFBases$Path.

If you are using programs that call TeX or Metafont directly (via the
commands virtex and virmf) you should change the following lines in
!TeX.!Boot:

  Set TeXFormats$Path texmf:armtex.format.
  Set MFBases$Path texmf:armtex.base.

to

  Set TeXFormats$Path texmf:armtex.format-s.
  Set MFBases$Path texmf:armtex.base-s.

So that the small formats are found by default. This is the case with
dvips which invokes virmf to create font bitmaps.

The small LaTeX format is a special version which loads some parts only
when needed. This may cause problems with some documents but I have
never had any. You can also use the ordinary LaTeX format with
small TeX but this means that even less TeX memory is available for
typesetting. LaTeX may run out of memory with some documents. There is
not much that can be done about this.

To build the ordinary LaTeX format change directory to
LowMemory.armtex.format-s and say:

   WimpSlot 1500k
   initex latex.ltx

To use the format either edit LowMemory.bin.LaTeX to use &latex rather
than &latexa or use the command

   TeX &latex myfile.tex


Jakob Stoklund Olesen
<stoklund@usa.net>
