With Richard Greenblatt 's support , in summer of 1972 Carl reimplemented the TECO buffer storage .
With Richard Greenblatt 's support , in summer of 1972 Carl reformed the macros as native PDP - 10 code .
With Richard Greenblatt 's support , in summer of 1972 Carl reimplemented the TECO buffer storage and reformed the macros as native PDP - 10 code .