Search found 195 matches

by Cyprian
Sun Jul 22, 2018 11:40 am
Forum: TWEAKS & FIXES
Topic: TT VME Bus Fix - Does it really make it faster?
Replies: 4
Views: 1860

Re: TT VME Bus Fix - Does it really make it faster?

what is that "VME Bus Fix"?
by Cyprian
Thu Jun 21, 2018 11:57 pm
Forum: SOFTWARE PROGRAMMING & DISCUSSION
Topic: TT Software overscan?
Replies: 26
Views: 6591

Re: TT Software overscan?

Interesting work there Cyprian... One day when I get to my TT again I will have to pick your brains! :D :) Im still intrigued with what Ray did for the 1280x480i slideshow demo, as according to the HW TT overscan manual linked earlier by Frank Lucas, TT Med Res is only 832px wide. He has somehow tr...
by Cyprian
Mon Jun 18, 2018 1:30 pm
Forum: SOFTWARE PROGRAMMING & DISCUSSION
Topic: TT Software overscan?
Replies: 26
Views: 6591

Re: TT Software overscan?

Petari wrote:
Mon Jun 18, 2018 12:44 pm
It is not dilemma here that SW overscan is possible on TT. It is just that it occupies CPU in way, that can not run SW then normally .
true.
by Cyprian
Mon Jun 18, 2018 12:20 pm
Forum: SOFTWARE PROGRAMMING & DISCUSSION
Topic: TT Software overscan?
Replies: 26
Views: 6591

Re: TT Software overscan?

On ST(E) overscan is achieved by making some writes to video registers (for freq. change) in very accurate moments of horizontal scanline. That's possible only with 100% CPU load, and knowing exact instruction execution times (cycle count) . Luckily, you can use there not only delays, but something...
by Cyprian
Sun Jun 17, 2018 7:10 pm
Forum: SOFTWARE PROGRAMMING & DISCUSSION
Topic: TT Software overscan?
Replies: 26
Views: 6591

Re: TT Software overscan?

arf wrote:
Thu Jun 07, 2018 10:25 pm
Do you mind sharing the name and/or download link of the software?
DBL2STE.PRG for STE and DBL2ST.PRG for ST

it uses interlace effect to boost ST wideo modes: ST-LOW into 320x400i in 16 and ST-MID 640x400i in 4 colors
by Cyprian
Thu Apr 19, 2018 1:38 pm
Forum: FPGA DEVELOPMENT
Topic: BLITTER RE-CREATION THOUGHTS
Replies: 290
Views: 55631

Re: BLITTER RE-CREATION THOUGHTS

BLiTTER in FPGA? Really cool idea, I second that. Would be cool to add one feature - hardware C2P conversion. Now, a standard C2P - chunky160x100 to 4-bitplane 320x200 can take up to 480 000 cycles. With 160 000 cycles per frame it is 3 frames. With the BLiTTER speed it could take advantage of copy ...
by Cyprian
Tue Jan 16, 2018 9:08 am
Forum: STE / MSTE 68020 booster
Topic: STE / MSTE 68020 booster
Replies: 34
Views: 11872

Re: STE / MSTE 68020 booster

rpineau wrote:
Tue Jan 16, 2018 2:31 am
may be we'll go straight to 68030
+1 for 68030.
by Cyprian
Sat Dec 30, 2017 8:39 pm
Forum: HARDWARE DISCUSSIONS
Topic: Atari TT Boosters / Accelerators
Replies: 9
Views: 3610

Re: Atari TT Boosters / Accelerators

tuxie wrote:
Sat Dec 30, 2017 5:10 pm
At the moment we are in contact to the Apollo CPU Core team, and when we can make a adapter so we put a Vampire Core into the TT
awesome news.
need one for my TT.

Go to advanced search