C MNAME = MACRO NAMES
C MLINES = TEXT OF ALL MACROS
C MPTR = LOCATION IN "MLINES" OF FIRST LINE OF THIS MACRO
C NMACRO = ACTUAL NUMBER OF MACROS
C
      PARAMETER (MAXMAC=50,MAXMLN=500,MAXSTK=200,MLSIZE=300)
      COMMON / MACROC / MNAME(MAXMAC), MLINES(MAXMLN), MPTR(MAXMAC),
     $ NMACRO
      CHARACTER *(MLSIZE) MLINES
      CHARACTER *8 MNAME
      COMMON / STACK / SLINES(MAXSTK), NSTACK
      CHARACTER *(MLSIZE) SLINES