Date   : Thu, 23 Mar 2006 09:14:14 -0000
From   : "David Harper" <dl.harper@...>
Subject: Re: Web site: Mainly Master 512

Sprow  wrote:

>> A curiosity I came across while doing this: You cannot enter dates into
>> M512 DOS-Plus earlier than 1980.
>
> That would make sense - in the disc catalogue (FAT12/16/32) dates are all
> stored relative to 1980 (7 bits, thus 2108 is going to be a painful year 
> for
> Windows) so you'd want to clamp it to 1980 to stop negative datestamps.

Agreed. There is some logic in this.

>> However, the date stored in DOS-Plus counts from
>> the beginning of 1978.
>
> That would not make sense,

I cannot see any sense in it either, which is why I asked. It is the way the 
date is stored, however. Look at it if you like. The value (in M512 DOS-Plus 
2.1) is a word variable stored at 1197:005F

David Harper