New Online MSX emulator

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By Manuel

Ascended (18729)

Manuel's picture

02-10-2015, 22:35

For one thing, there's pixel accuracy needed for some parts Smile

Did you already try the Traktor demo Planet of the Epas?

By ppeccin

Champion (376)

ppeccin's picture

03-10-2015, 01:29

Manuel wrote:

For one thing, there's pixel accuracy needed for some parts Smile

Could you point me to some of those parts?

Manuel wrote:

Did you already try the Traktor demo Planet of the Epas?

Yes! That one will be a nightmare to run perfectly. Probably I will never be able to, in favor of more important things.

You see, being implemented in javascript and running inside the browser, I don't have much processing power available. I have to squeeze every bit of performance I can and optimize my code to the maximum.

I can't lose like 20% of performance to make 0,1% of the software out there run perfectly, and risk becoming too slow to run well on the average hardware available.

So, the more important thing will be supported first, and always without giving up on performance.

Regards!
Peccin

By Vampier

Prophet (2393)

Vampier's picture

03-10-2015, 08:20

As a fellow openMSX developer (well... somewhat inactive these days) I have to admit that this is one of the cooler things out there. The JAVA emu a couple of years back was impressive too... but it's Java. This is pure HTML5!

I partially wrote an eggerland engine in javascript once just to keep myself busy. But this is on a whole different level.

By Manuel

Ascended (18729)

Manuel's picture

03-10-2015, 23:35

Some details:
- Bold: the green areas in the plasma are missing the white borders around them and the one going in both x and y direction seems to go less smooth
- Utopia:
- Nature for Dummies seems to be showing weird flashes and wrong colors every now and then
- Big Scroller: already mentioned, the border color is not emulated per line. This may also show in 'turbo loaders' of tape games.
- The slide show doesn't have the build of of the images, but the images appear instantly instead
- The end part should show a block pattern, not a bar pattern (this is where you need pixel accuracy, I think). Also, it should scroll upwards. Borders need line accuracy here too Smile
- Illusions:
- shows wrong colors in the width 80 part (should be black/white/grey only).
- same remark for the slide show here

By ppeccin

Champion (376)

ppeccin's picture

07-10-2015, 16:13

Hi all!

Version 0.94 is released:
- Konami SCC sound chip support!

http://webmsx.org

For now there is no way to insert just a "pure" SCC cartridge with no game, so I did not test the demos and other software that uses the SCC yet.
But it seems to be working fine with the games I tested: Gradius 2, Kings Valley 2.
Please tell me what you think!

Manuel, next version will improve accuracy, then I will look into the points you mentioned in your last post one by one. Some of them are already working!

Regards,
Peccin

By Grauw

Ascended (10565)

Grauw's picture

07-10-2015, 19:19

Very nice! Looks like soon I’ll be able to run Synthesix on my web site! Smile

By Manuel

Ascended (18729)

Manuel's picture

07-10-2015, 22:59

How can I run Montana John and the Templar's Treasure with SCC?

By mars2000you

Enlighted (6182)

mars2000you's picture

07-10-2015, 23:06

(nothing)

By ppeccin

Champion (376)

ppeccin's picture

08-10-2015, 03:52

Manuel wrote:

How can I run Montana John and the Templar's Treasure with SCC?

Manuel, I just found a little bug in the SCC emulation that prevented proper detection by that game.
Since I just tested it with games that "assume" the SCC is present, I let it pass.... :-)

Releasing a new version with the fix soon!

Thanks for the tip. Do you know of more good titles with SCC content?

Peccin

By Manuel

Ascended (18729)

Manuel's picture

08-10-2015, 21:14

I can't quickly think of other MSX1 ROM games that support SCC. Perhaps there were a few more in MSXdev?

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