Related; what are the bytes that need to be patched in the rom for the 102? I can't find the info online anywhere.
~~ related; is there a disassembly dump of the M102's rom? On Wed, Nov 28, 2018 at 10:09 PM Scott Lawrence <yor...@gmail.com> wrote: > right, or 1900, but that wasn't the point of what i was saying. I thought > that the method used to hide the year completely in the menu was clever. > > On Wed, Nov 28, 2018 at 9:42 PM Peter Vollan <dprogra...@gmail.com> wrote: > >> "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 <yor...@gmail.com> 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 >> > yor...@gmail.com >> > > > -- > Scott Lawrence > yor...@gmail.com > -- Scott Lawrence yor...@gmail.com
