IO, a new MSX1 demo by Logon System

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By fernando.collazo.5682

Master (256)

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15-03-2015, 20:51

Fantastic! Some really impressive and fresh effects.

By Lord_Zett

Paladin (807)

Lord_Zett's picture

15-03-2015, 21:03

yes! nice! most make a nice msx game out of that 3d-ich scroll!

By Bit Addict

Resident (34)

Bit Addict's picture

15-03-2015, 21:31


By Manuel

Ascended (18704)

Manuel's picture

15-03-2015, 21:36

VERY impressive indeed! I hope the author(s) contact the openMSX team to discuss the patch they apply (why, what patch, etc.), so we can improve emulation with it, hopefully.

By tonigalvez

Champion (310)

tonigalvez's picture

15-03-2015, 21:59

Very good and impressive themo, I think we have a lot of tile precalculation here.

By Overflow

Resident (57)

Overflow's picture

15-03-2015, 22:09

Hi everyone!

@Prodatron: I'm glad you were the first guy to post the news here, since we share (cpc) roots.
@Lord_Zett: have you ever played "Trailblazer" game?
@Manuel: I'll start a new thread for patches (w/ source).
3 kinds of patches are automatically applied:

  • sync openmsx/msx1/msx2
  • patch "2 clocks"
  • patch "slowdown" on turboR or so

Thanks you guys for your nice comments.

By Overflow

Resident (57)

Overflow's picture

15-03-2015, 22:41

tonigalvez wrote:

(...)I think we have a lot of tile precalculation here.

Not my kind of coding. Wink
Let's have closer look at the 3D scene as an example.
Rough screen could be this one:

Each colum is/has a "color", as in "the 32 colors for 32*8 chars in screen mode 1".
Then, some precise timing on code changes VDP R#3 at given scanlines,
so that all colors are changed at once;
seen result is a textured applied on the 3d path.
Got it?

By Marq

Champion (387)

Marq's picture

15-03-2015, 22:57

Good stuff! Yet to see it on a real MSX1, as it doesn't want to work on a V-20 with MegaFlashROM SCC+ SD 512k (DOS2). Toshiba HX-10 and Nowind no luck either, according to Yzi.

By karloch

Prophet (2157)

karloch's picture

15-03-2015, 22:58

Really impressive!

By Prodatron

Paragon (1808)

Prodatron's picture

15-03-2015, 23:03

@Overflow, it's really cool to see you here, I didn't recognize your other posts end of last year. So probably it's too late to say "Welcome to the fantastic world of MSX!" - and as usually you placed a hit again for the Z80! Running Naked in a Field of Flowers

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