Day 985

Noticed that the kettle's taking longer to boil - the cold water must be colder. Proper December weather.

Finished off the expression evaluator, transferred it into QBASIC and integrated it into the spreadsheet. Great to see all the figures changing at will, though it's a mite slow. Next step: replication.

Had a mild scare when I mistakenly copied the corrupt version of DOS 5 COMMAND.COM onto the OK one instead of vice versa. The progs that've accessed the corrupt one must've been checking C:\ first before reading COMSPEC. Found a working versh on a dusty old disc after booting from my own 3.20 floppy.

Later tried to make a DOS 6 bootable disc but was defeated by drive incompatibilities. I'll try a direct sector copy from DEBUG tomorrow.

Rigged up some new fairy lights, tested the dodgy telly speakers.