SpritesMind.Net

I guess I could just update everything at once for now, though knowing how the hardware times updates would be best, and in retrospect GManiac's suggestion makes the most sense =P

Also, are the various EG register values sent to the EG on every cycle and then stored, or on every EG cycle and used ...

Ok. So in that case (and this may have been answered already but just to be sure), are all EG outputs updated at once on the three-cycle mark, or does it update each operator EG in a three cycle loop? Or to put it in code terms, is the EG unit loop

for each clock pulse {
send out current operator ...

Right, sequential isn't exactlyt he right word, but componentized/concurrent rather than singlethreaded and linear? Whatever it may be I'm trying to imitate the chip as much as possible given the limited knowledge I have (how do you read a die shot?)

So let me get this straight: there are 24 ...

Here's my question.

I am trying to write a concurrent emulator (rather than a sequential one like existing emulators) that tries to mimic the chip operation on some level. I'm confused as to how the EG is supposed to work if it runs at 1/3 the clock rate of the rest of the chip, since each operator ...

So the dump has been released (on the Pirated Games Central forum), and I noticed an interesting thing (race condition) when trying to patch it to get it to work on any emulator: sound effects stop working after the first one. It turns out the game does not disable interrupts in its play sound ...

There are also some patents regarding Comix Zone, which describes the technique used to create the comics look. I can't find it right now, but I've seen it in the past.

It's very interresting because it seems you would get the source of this game if you bought the patent.

Edit: Patent number ...

Just out of curiosity, who made the two YM2612 clones HardWareMan mentioned (TA-07 and SE-95) and are they recent chips? Thanks.

I got a sawtooth with one operator: operator 1, SR max, TL max, FB 4, algo 7, everything else at their silent (default for an empty voice in TFM Maker/VGM Maker; I "discovered" this a while ago =P )

@:0 sawtooth
LFO: 0 0 0 0 0
CH: 64 4 7 0 0 120 0
M1: 31 31 0 15 0 0 0 0 3 0 0
C1: 31 31 31 15 0 127 ...

Late but I should put in my two cents anyway (I posted the huge quote below on another forum a few days before the last post here was made); I did this on the forums for the bootleggameswiki already . Someone stuck this particular game in a Retrode and gave Sik and I a dump to analyze. We determined ...

Cool. IMHO the original scans should be provided alongside the OCR'd versions for posterity's sake.

For that scan, is it just me or is the Sega CD logo and Sonic art stretched/squished?

Um actually no, most games do use both simultaneously. In some cases the PSG is an integral part of the music ( example (out of an entire soundtrack of examples). example ). The Sonic games are examples where the PSG is used for both music and sound effects (Sonic's jumping sound).

And using the ...

One thing I don't get (and why I need to start playing around with the VDP): if this is just setting vertical scroll position, how is the effect of squishing achieved? Optical illusion? tristanseifert says it is...

That should be http://echo.mdscene.net/, not whatever that URL is; I'll fix it on the page

There's a topic on that elsewhere here.

Nemesis: which books do you have? I guess it's time to actually learn computer engineering =P

Barring that, you could figure out how to make a driver yourself, or take the cheapest route and use the TFM driver (is that still available?) for music and do the SFX all as PSG. The tools available to you depend on which path you take.