This directory will contain files relating to the BCPL implementation
for the Z80 microprocessor.

The directory Grasm seems to contain a family of assemblers for a
variety of machines implemented by Gray Girling in about 1980. It
includes one for the Z80.

The directory z80cg contains files relating to a BCPL codegenerator
for the Z80 probably implemented by ID Wilson. The source code is in
z80cg/bcpl. It is probably compatible with the BCPL compiler frontends
for the lsi4, the nova and the pdp11.

The directoy sys/ holds various BCPL header files and library source
code in BCPL and Z80 assembly language.

These were written in the early 1980s for the Systems Research Group in
the Cambridge University Computer Laboratory.



