Research V6 development

Work on file usr/source/cref/index/econs.h
Research V6 development

Work on file usr/source/cref/index/ind0.c
Research V6 development

Work on file usr/source/cref/index/ecmn.h
Research V6 development

Work on file usr/source/cref/index/ind2.c
Research V6 development

Work on file usr/source/cref/index/ind1.c
Research V6 development

Work on file usr/source/cref/src/dr.c
Research V6 development

Work on file usr/source/cref/src/put.c
Research V6 development

Work on file usr/source/cref/src/crpost.c
Research V6 development

Work on file usr/source/cref/src/acts.c
Research V6 development

Work on file usr/source/cref/src/upost.c
Research V6 development

Work on file usr/source/cref/tab/ctable
Research V6 development

Work on file usr/source/cref/tab/atable
Research V6 development

Work on file usr/source/cref/tab/etable
Research V6 development

Work on file usr/source/cref/tab/mtab.c
Research V6 development

Work on file usr/source/iolib/cerror.c
Research V6 development

Work on file usr/source/iolib/cfree.c
Research V6 development

Work on file usr/source/iolib/calloc.c
Research V6 development

Work on file usr/source/iolib/cflush.c
Research V6 development

Work on file usr/source/iolib/alloc.c
Research V6 development

Work on file usr/source/iolib/ceof.c