Author
| One chip MSX improvement project
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PingPong
msx master
Posts: 1025 |  Posted: August 23 2008, 22:03 |
That's good HRA!
take a look at this (translate before!)
http://sblive.narod.ru/ZX-Spectrum/V9938/V9938.htm
Here I've found a signal and timing description of the v9938 chip made by a Russian that had synthetized the v9938 core.
Because some aspect of the vdp are unknown with regards the timings (for example: how many byte/scanline can fill a high speed fill command with sprites on at 60hz?), maybe it's a good idea to take a look....
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Alex
msx lover
Posts: 100 | Posted: August 23 2008, 22:58 |
Quote:
| take a look at this (translate before!)
http://sblive.narod.ru/ZX-Spectrum/V9938/V9938.htm
Here I've found a signal and timing description of the v9938 chip made by a Russian that had synthetized the v9938 core.
Because some aspect of the vdp are unknown with regards the timings (for example: how many byte/scanline can fill a high speed fill command with sprites on at 60hz?), maybe it's a good idea to take a look....
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The russian site seems to be a summary&translation of following page http://www.ohnaka.jp/wiki/wiki.cgi?page=%BB%F7%C8%F3VDP from Kunihiko Ohnaka from ESE-Artists factory, who wrote most part of the V9938 core used in the OCM/ESE-MSX
Kind regards,
Alex
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PingPong
msx master
Posts: 1025 | Posted: August 24 2008, 11:33 |
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KdL
msx user
Posts: 64 | Posted: September 03 2008, 00:31 |
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MicroTech
msx lover
Posts: 122 | Posted: September 03 2008, 12:30 |
Just a simple info: T80 sources have never been changed/improved up to now, correct?
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luppie
msx lover
Posts: 78 | Posted: September 03 2008, 14:39 |
Hi KdL, are you planning to release an update on your OCM-PLD in the near future ?
Like your work.
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Edwin
msx professional
Posts: 626 | Posted: September 03 2008, 23:09 |
KdL, does the new version properly build, convert, simulate (and whatever you want) emsx sources?
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MsxKun
msx user
Posts: 57 | Posted: September 13 2008, 15:49 |
As there are hundreds of messages, don't know if it was asked before, but... would be it possible to add Scanline effect to video outfut, to don't see so big pixels when playing on a 20" TFT monitor?  |
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Edwin
msx professional
Posts: 626 | Posted: September 15 2008, 00:21 |
Easily. If you check the code, you'll find that there are two intensity levels for the vga display. Currently they can be selected, but no reason why they can't be alternated.
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HRA!
msx lover
Posts: 107 | Posted: September 15 2008, 02:33 |
Quote:
| As there are hundreds of messages, don't know if it was asked before, but... would be it possible to add Scanline effect to video outfut, to don't see so big pixels when playing on a 20" TFT monitor?
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It is easy.
OCM today does the improvement change to VGA by outputting the same line twice.
If one of lines are darkened, the effect like the scanning line is achieved.
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1chipMSX[KAI] development was restarted 
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karloch
msx addict
Posts: 417 | Posted: September 15 2008, 23:20 |
Quote:
| OCM today does the improvement change to VGA by outputting the same line twice.
If one of lines are darkened, the effect like the scanning line is achieved.
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Could you add a hotkey to switch it on and off? It would be a cool feature when we connect the OCM to large LCD displays  |
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KdL
msx user
Posts: 64 | Posted: September 16 2008, 07:18 |
to luppie & Edwin:
I don't know... but HRA!'s 1chipMSX[KAI] project have priority.
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