Re: Y2K ProDOS 8 (2.0.3)

[willi@wilserv.com (Willi Kusche)]

Hi, y'all!

obsbedia2@aol.com (Obsbedia2) wrote in message news:<20030709060226.00112.00000037@mb-m03.aol.com>...
> << Runing ProODS 8 (2.0.3) under KEGS-OSX on  a PowerMac, I see that some 
> files have a year of 103, while others display 03. The former show up in 
> the catalog as <NO DATE>. Is there a optimal way to deal with this? >>
> 
> No.
> Old clock card system from the time when memory was expensive.  Just the last
> two digits (03) are present for the computer to read, so unless the program
> you're running is set up for it, it will assume it's 1903.

    See ProDOS Technical Note number 28, written by Dave Lyons on
September 1990.  It discusses the layout of the ProDOS date field.

    The year field is a 7 bit field.  So it can hold values from 0 to
127.  The Technical Note says that values 100 to 127 are invalid.  It
is my contention that they should be valid and should represent the
years 2000 to 2027.

    ProDOS versions 2.0.x will ensure that the year field is in the
range 0 to 99 when reading the clock on a IIgs.  Earlier versions do
not change the year field when reading the clock on a IIgs.

Willi