MAXCHS
if (cstore-cspace > MAXCHS)
spvecs[spcount++]= pp = calloc(MAXCHS+MAXSTR,1);
if (tpcount<0 || thisvec+n > tpvecs[tpcount]+MAXCHS)
tpvecs[tpcount] = calloc(MAXCHS,1);
exlim= exstore+MAXCHS;