|Re: [hatari-devel] looking for someone with a mono monitor|
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Am 28.11.16 14:37, schrieb Troed Sångberg:|
thanks for your answer and sorry for my again very late answer, it is difficult for me to spend time on this matter that I though like a lot.
At first a thank to Thomas Huth for pointing me to that great presentation of yours on youtube. I didn't know you even "reverse engineered" the state machine of the Glue-Chip, very amazing to learn all those details! Especially the part with the "wake-states" indeed enlightens me.
Hmm, maybe my explanations were confusing. The part about only 2 of 7 STs and those 2 were "13 line" and "29 line" Glues referred to my experiments with internal and external synchronization. So only on 2 of 7 STs I was able to trigger a second VBL-phase with that trick, the other 5 STs just showed black colour on the respective lines but still increased the video-count as usual (no line skippping or such).
It still astounded me that a "13 line Glue" and a "29 line Glue" both initiated a "2nd VBL" with the Ext/Int-Synch trick since I considered those two Glues must definitely be from separate production lines (I heart that rather older Glue-Chips only have 13 lines in the upper border for 50 Hz and that this was "corrected" later somehow). Opening the right border in monochrom always worked on all STs.
Sigh, I really would love to play with that stuff again. The first challenge would be to find and set up my old Atari ST again from our attic.
Hmm, should try that. Anyways, those days I was a little "jealous" at the color mode since they're able to continuously display their line and open the right border and I will always have this black gap there.
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