ext10     headr
     GM        equ  839   
     PREFIX    equ  849   
     NEXT      equ  852   ONE BELOW NEXT SLOT IN ARRAY TABLE
     OFF1      equ  857   OFFSET WORK AREA
     CLASS1    equ  860   EQUIVALENCE CLASS LINK
     OFF2      equ  865   OFFSET WORK AREA
     CLASS2    equ  868   EQUIVALENCE CLASS LINK
     OFF3      equ  873   OFFSET WORK AREA
     NEXT3     equ  876   EQUIVALENCE CLASS LINK
     SYNTAX    equ  883   
     NXSTMT    equ  1115  
     GOTLP     equ  1158  GOT LEFT PAREN -- SYNTAX OK
     NXTVAR    equ  1165  SKIP LEFT PAREN TO GET X1 TO
     CHKTYP    equ  1181  GET READY TO TEST FIRST