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sometimes99er

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sometimes99er last won the day on October 11 2022

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  1. Also. The lower case set (004A) has 7 bytes allocated per character, but it could have done with only 6 bytes. I think the lower case set (004A) was designed to be true lower case, but at the last moment someone at TI wanted tiny capital letters (otherwise it was going to look too professional). Doh.
  2. The subroutine could change the return address, and then the code could make sense. 😐
  3. Instead of "forums.atariage.com/forum/164-ti-994a-computers" you can use "ti99.atariage.com". 😉
  4. Some of the problems, including transposition, are somewhat outside the sound chip. 🙂
  5. https://americanhistory.si.edu/collections/nmah_1064832
  6. That should be easy to implement just before your wait for VDP end of frame. Something like this: clr r1 ; keyboard column 0 li r12,>24 ; CRU address of the decoder ldcr r1,>3 ; select the column li r12,>6 ; address of the first row stcr r1,>8 ; read 8 rows andi r1,>1100 ; test both "fctn" and "=" (=QUIT) jne label ; not pressed blwp @>0000 ; reset
  7. https://github.com/pakastin/car
  8. Couldn't we please keep this in a ChicagoTIUG Meeting thread only ? Like Classic99 and Mess/Mame etc.
  9. Couldn't we please keep this in a Ti99Dir thread only ? Like Classic99 and Mess/Mame etc.
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