SpritesMind.Net

Yes. And you calculated it correctly:

Address Register A3 : 0x3e4d4a5b
+ Displacement (s8) (0xc4f) = 0x4f
===> Result = 0x3E4D4AAA
+ Index d0 : 0xa1e940b7 (No scale for M68000)
===> Result = E0368B61
<=> 0x368B61 (24 bits)
It doesn't correspond to 0x4542aa ... 0x4542a0 area


Stack frame ...

Indeed, the EA result is an odd address, I missed this point.

BAD opcode?

M68000PRM, page 2-9 (abs: 50):

Hi! I frequently get this error:

Yeah, I am very glad that I was able to push this project to some logical conclusion. It was last year. Some information was published on the forum in neighboring branches. For example, how exactly the 8/16 data bridge arbitration works.

In addition to the emulators from Nuke, you can look at the ...

KanedaFr => KanedaFlash!

Some games uses 8bit ROM and 74x373 as data bit extender (it keep high byte while low goes directly from ROM itself). CAS2 pin required.

I saw DSView is based on sigrok...does it mean decoder follow the same rule than for sigrok ?
if yes, I already know how I could write a command/status decoder and a subcode decoder ;)

There was version #2, which was more like Sigrok, and now there is version #3, which is basically a Sigrok ...

The records I'd like are listed on the "Signals" part of this page .
Be free to ask me because some of them are a little cryptic ;)
You already did some of them but unfortunately, I didn't save the pictures and so they're lost.
I'm very sorry about that.

Like you see, you can take your time ...

next step : capture data with my Saleae -> see you in some months ;)

7 years passed since 2017 and I didn't use the Saleae mainly anymore. I still have it but Dreamsource is much handle and you can easily make any decoder you ever need just python it with prefered TXT editor. You can even unzip ...

Genny dev today is equal to SDGK dev so everyone is on SGDK support's Discord.
Discord allows quick question/answer, etc... so it's a very good media for that.
NesDev has his own discord server. With the whole spectrum of NesDev topics/rooms. Does SpritesMind only have a discord server ...

danibus wrote: Mon Sep 04, 2023 5:21 pm We had mega sg fpga but not sure if you can use their work.

I'll use only our decap project as source. I don't want to use any other one's.

Ok, our team almost done reverse engineering MD ASICs with it's decap. Some of team members was made a hardware level emulator and even FPGA one. Now my turn to finish this project. Finally I done with this:
https://i.ibb.co.com/TYJFQ2P/IMG-1526.jpg
This is Megadrive that rebuild on custom PCB ...

Eke wrote: Sun Aug 06, 2023 9:14 pm That's impressive... and an unvaluable source of information. Thanks for your work

Yeah, our team do the best. Now I am happy again.