Great progress Icky One remark, regarding 2nd image / BLiT_H6a4f (actually the same issue is in the 1st but easier shows it here). The first Sparkalaphobia line is 1 bus access shorter than the BLiTTER's one. The difference is visible in the second line: - it starts 1 bus cycle earlier (should be 2 ...

1st image / BLiT_H6a.s 1st_image.png "The green stairs" - One green step is 1 bus cycle long (4 low res pixels / 4 CPU clocks) Top - real STE Red box has 4 bus cycles width (four green steps). Below is the code responsible: ; $FFFF8240: SHIFTER Color Rgister 0 ; $FFFF8A38: BLiTTER Y-Count (count of ...

exxos Icky unfortunately I have a busy day ahead, I'll try write more tomorrow evening . Long short story: 1) I have a suspicion about your FPGA BLiTTER register $FFFF8A38, write to it could introduce 4 CPU cycle delay (red part before the BLiTTER is fired). 2) In general the FPGA BLiTTER cycles lo...

well done @agranlund

I finally got round to looking at this project again this weekend and have made progress. The Sparkalaphobia board is now almost matching a stock BLITTER. ... I have run @Cyprian's test programs and the patterns are a little different to the original BLITTER so may be there is something that can be...

Icky wrote: ↑

Sat Aug 22, 2020 2:27 pm

That said it is back up and running and whilst I had it on my desk I thought I would see how the Phoenix Shifter would look. Lots of DIL stacks later and it fitted above the case pillar. Took a screen shot of Frontier just to show it working.

"Phoenix Shifter " nice name. Would be cool to have one!

mine TF536 just arrived. Looks so cool.
Thanks @PhilC
will install a cpu socked in my short 520ST

If ram works fine on the ribbon cable, would be possible to use it also to relocate TF536?

I have never observed a such lined yet.
What about recapping?

have you seen this (not mine)? https://www.ebay.com/itm/Atari-Falcon-C303001-68030-MICROPROCESSOR-NOS-Factory-sealed/303379824445 ATARI Falcon 68030FE-16 NOS Limited availability. “Brand New Old Stock Atari Falcon C303001 68030 MICROPROCESSOR Factory sealed.” This is for ONE Unopened package contain...