All files have been modified from the originals to include a hex record
to load the program jump vector (BC18) with a jump to the entry point of
the program.

BASIC.HEX has been modified to have the correct code at 210Fh. See notes
in the BASIC.LST file in the Disassemblies folder. Also, the hex file was
regenerated using 32 bytes per line instead of 16 to reduce the size
of BASIC on disk.

SYSGN.HEX has been modified to use CTRL-C for escape instead of the '}'
that was in the code. The manual specifies ASCII ESC, however, the
console I/O code echos all characters typed - even the ESC - so smart
terminals think an escape sequence has started and this causes problems
with most terminals. That is why I went with CTRL-C instead.