This directory contains D Bit changes to the Fuzzball operating system. dskhd.mac driver for Ersatz-11 "HD:" hypothetical disk device (easiest driver I've ever written, it worked on the first assembly! not surprising since it's only about a screenful of code) format.mac date conversion and output routines modified for Y2K rdclk.mac date parser modified for Y2K rmn.mac date conversion routine modified for Y2K Note that while these changes fix the year 2000 problem, and hopefully fix the RT-11 emulator's year 2004 problem (at least I *think* I got everything), but Fuzzball still has an inherent year 2016 problem since its internal date format is only 14 bits, the high two bits keep track of whether the clock needs setting or adjustment. Luckily its internal format is different from RT-11's, it counts the number of days since 01-Jan-1972 rather than encoding the month/day/year in bit fields, so it makes better use of the available bits and lasts 44 years instead of just 32. Expanding the date to 16 bits (or more?) would be easy, but would require an incompatible change to the .GDAT system call. I'll get around to it one of these days... John Wilson