"Just use 1979, which equals 2007."
The model 100 does not associate the day of the week with the date.
And it does not take leap years into account. So if one year such as
1979 is identical to another one such as 2007, that has nothing to do
with anything relating to the Model T.
On Wed, 28 Nov 2018 at 18:16, Scott Lawrence <[email protected]> wrote:
>
> So, I'm a cheapskate and don't have Rex or any of the fancy replacement ROMs
> for my M102 (although i'll probably burn a modded ROM at some point, but i'm
> getting off topic), and my newly revived and refreshed 102 shows the "19xx"
> year display.
>
> Years ago, I used this program from Chris Osburn which worked well, that
> patches the display code of the ROM:
>
> http://www.muppetlabs.com/~chris/model100/y2000.html
>
> But it won't work for me in the long run, as it interferes (I believe) with
> the various machine code loaders and all of that fun stuff.
>
> However I just found this other program, posted by Terry Yager;
>
> http://www.vcfed.org/forum/archive/index.php/t-5859.html
>
> That claimed to do the same thing, or a similar thing... Most of the program
> does some funky stuff with printing and inputting text that I kinda dig, but
> it does "fix" the year display issue without machine code... in a pretty neat
> way.
>
> The key bit of program bits work out to be:
> POKE 63789,127
> POKE 63790,127
>
> And what it does. I think, is pretty clever. As far as I can tell, it writes
> backspace characters into the two BCD digit fields of the realtime clock's
> system memory. So when the menu's routine tries to show the date, ie: "Jan
> 01,1918 Mon..." the "18" gets replaced with two delete characters, which
> erase the "19". You end up with: "Jan 01, Mon....". Not perfect, but good
> enough for me!
>
> Virtual T shows it as a flickering display, but it works perfectly on real
> hardware.
>
> Anyway, neat hack!
>
> -s
>
> --
> Scott Lawrence
> [email protected]
