1) The use count is a signed halfword;
2) The use count is incremented by 1 for every LOAD and decremented by 1 for
every DELETE;
3) The capacity of a signed halfword is 2^15 - 1 = 32767;
4) If loads and deletes are paired difficulties are unlikely; if they are not
paired difficulties of this sort are all but certain for much-used modules.
John Gilmore Ashland, MA 01721-1817 USA
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