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Finally CPS3 boots on FPGA. The compiler was doing a wrong simplification breaking the logic. This was debugged on a SiDi128 that has a broken video DAC, hence the odd colors

30,101 views • 4 months ago •via X (Twitter)

18 Comments

jotego's profile picture
jotego4 months ago

The SiDi128 version of the core has halve the memory cache than the MiSTer one. Some of the artifacts must be coming from that too.

jotego's profile picture
jotego4 months ago

The MiSTer boots up but it’s unstable, probably due to SDRAM noise. I am exploring that next.

jotego's profile picture
jotego4 months ago

It took a long time to find that compiler issue, which is present in modern versions too. Not sure how to report this to Intel, or whether they will try to fix it anyway…

angel_killah's profile picture
angel_killah4 months ago

interesting could you give more details about what simplification the compiler was doing wrong?

jotego's profile picture
jotego4 months ago

A system verilog packed type was not handled correctly.

Bunny-Head's profile picture
Bunny-Head4 months ago

Is this 1:1 with the PCB or it's using "emulation shenanigans"?

jotego's profile picture
jotego4 months ago

It aims to be but at this development stage it still isn’t. As you can see it still is a bit of a graphic mess! Work in progress.

ReCollect64's profile picture
ReCollect644 months ago

@PixelCNinja 👀

ADM's profile picture
ADM4 months ago

Esperança é a última que morre, esperamos que ela não morra.

Riccardo G.'s profile picture
Riccardo G.4 months ago

Yesss!

Àngel Ortuño Julià's profile picture
Àngel Ortuño Julià4 months ago

Eres un master del universo tio 🙏

SuperRetroQuest's profile picture
SuperRetroQuest4 months ago

King.

alexfry's profile picture
alexfry4 months ago

Amazing!!! It’s been 84 years, but the jewel is in sight.

Bean Soup's profile picture
Bean Soup4 months ago

Oooo yeah! Nice one jotego

ace's profile picture
ace4 months ago

3s elitist will probably still find a way to say the future finished product is unacceptable for tournament play. If it ain't soft Japanese cabs & boards they don't play...minus superguns.

Stvsez's profile picture
Stvsez4 months ago

That's a neat little 4:3 LCD

Kosherha1al's profile picture
Kosherha1al4 months ago

@josembarroso Awesome work.

Jefferson Sa's profile picture
Jefferson Sa4 months ago

Habemos Core! Huge news. Jotego! You are great!

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