sometimes you'd like to travel back in time, go to the launch of the MSX1 (or MSX2) system with a pile of the best MSX1 and MSX2 demos and games produced to date and show them at launch. ^_^

Quote:

Pat: do you have a MSX1 machine with 512 KB? I'd love to see one. If you don't have an external memory expansion with mapper, then you are done. But, of course, the real cartridge would have worked. Once again, back in 1983, there were no mapped ROMs, though.

Nope, I dont't have one :-( . Memory mappers are, if i'm correct, defined in the MSX2 standard. Though a mem. expansion cartridge does work in a MSX1 I think.

A mem expansion works perfectly in a MSX 1, as you can see in the photo I've take in the MSX RU in Barcelona. This MSX 1 has 4 MB RAM and a CF-IDE adaptor:

Another pic...



Also.... how I can load this demo in my MSX? (I have loaded it in bluemsx)I have a MSX 2 with a external 512 KB RAM Mapper. I think it's impossible. I think it will be better to put this rom into a disk.

Yours,

Daniel, excellent work ! .... and the blueMSX debugger was very useful

Some screenshots here :

http://www.msxblue.com/

BodyHammeR,

The scroll was indeed a bit slow and boring so I replaced the scroll routine with a new one I did. The new routine is a lot faster so now I'm able to update the scroll every frame instead of every fourth frame (which means that the scroll is four times faster ) and the rest of the demo works as before. I think you'll like this version better. (snout, I guess you can update the link in the forum post maybe)

www.bluemsx.com/demos/waves11.zip

And thanks to the rest of you for the nice feedback

Hi daniel. Great work!
Have you continued your study in the PSG?
I am always convinced that the "spike" problem can be overcame.

Hi ARTRAG, No I haven't really had any time to look at the PSG sample player. I've been quite busy with the blueMSX releases and then this demo. It would definately be nice to find a solution to the "spike" problem but I'm running out of ideas...

dvik, can you publish a "stand-alone" version of the psg player?

New version is wow!! (Yes, it's better!)

Great demo. Impressive how these visual effects were combined with a sample player.

Lack of capable hardware forced me to use openMSX to run the demo (which works flawlessly btw), but I was wondering how the sound quality compares to the real thing.

@ dvik
I am busy as well, but, given an input sequence to be played, the optimal solution
needs offline search of the best (MSE criterium) sequence of channel transitions.

The seach must be performed using the Viterbi alghoritm, each state is
represented by the level of the two previously active channels when I change the third.
In this way we have 256 states (less than this, only the sums count) and 16 branches towards the next state.
MSE metrics change 3 times, according with the interval you consider in each sample period and depend on the "phase" offset among channels.
;-)
I will be soon clearer (I hope)

@ dvik
No problem! In your original post you asked for feedback, and I provided you with some.

Keep up the good work - you can tell by our gasps (visible or not) we are amazed

@spl, yes I can put together a small example with the sample player.

@BodyHammer, The feedback was really good and I like the improved version much better

Ok dvik, thanks for all

@ spl (and others)

I've uploaded a small example using the sample player. It is not much different from the ones discussed in the PSG Samples forum thread ( http://www.msx.org/forumtopic663p105.html )

You can download it at http://www.bluemsx.com/demos/psg_sample_player.zip

(I'll create a better example sample when I have time )