YESSSS I just bought myself a TURBO-R GT !!! How about you ?

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Por RyJuZo

Master (236)

Imagen del RyJuZo

01-07-2008, 21:36

Ok I see there is a cravin' for a dedicated turbo-r game....so it's going to be done !

any suggestions of what kind of game ?? maybe a remake of and existing ?

I'm thinking something with parallax scrolling (ofcourse) ....and some nasty algorithims to generate some stunning gfx effects in memory first(cause it's faster in ram)...and then blit the results to the screen. Ofcourse I still have to do some test-runs.

BTW which emulator emulates the turbo-r the BEST ? cause doing the first tests on an emulator speeds up development...

Por wolf_

Ambassador_ (9971)

Imagen del wolf_

01-07-2008, 21:43

Generally openMSX and BlueMSX are regarded as the best emulators. Whereas most people will say that BlueMSX is more suitable for the occasional gamer (or otherwise easy users) and openMSX is more for the tech-junkies. Try them both I'd say (and copy the blueMSX roms to the openmsx roms directly, because openmsx which comes only with some C-BIOS roms by default Tongue)

As for games: you seem to want to try the best of the best, the hardest of the hardest: try an RPG like XAK, Dragonslayer 6 or SD-Snatcher.

Por ARTRAG

Enlighted (6845)

Imagen del ARTRAG

01-07-2008, 22:25

Ok I see there is a cravin' for a dedicated turbo-r game....so it's going to be done !

any suggestions of what kind of game ?? maybe a remake of and existing ?

I'm thinking something with parallax scrolling (ofcourse) ....and some nasty algorithims to generate some stunning gfx effects in memory first(cause it's faster in ram)...and then blit the results to the screen. Ofcourse I still have to do some test-runs.

BTW which emulator emulates the turbo-r the BEST ? cause doing the first tests on an emulator speeds up development...

I started a parallax version of Total Parody
Actually the game is doable also on msx2, evn if i have to admit that on msx2+ I would have saved the VDP time to emulate borders...

The idea is quite simple:

the screen is build by tiles of 16x16 pixels

You work on two pages:
one is displayed, one is hidden: you build the screen in the hidden page

the two pages are swapped each 16 steps
You need also a bit of room in a 3rd page for speeding up border emulation (optional)

At each step, in the displayed page, you :

1) move the screen of one pixel using VDP registers
2) cancel with a black line the border of the window that has to disappear
3) copy a line of the area that has to appear (you take this line, or building it on fly, or by copying it from the working page)

[on msx2+ and TR you save 2) and 3), provided that you have build under the HW border the part of screen you need]

in the hidden page, you
4) plot 1/16 of the next frame to be displayed (eg. if the window is 15x8 tiles of 16x16 pixels, you can plot 7 1/2 tiles)
here you can have parallax: just build some tiles using transparency by overlapping two layers at different speed

in the working page, you
5) plot 1/16 of the next column/row you need to emulate borders (optional, if you have msx2+ or TR this can be done under the HW border)

once you have moved the screen of 16 pixels you
1) reset the VDP registers
2) swap the pages
3) repeat the loop.

The parallax limitation is in the speed, as the two layers can move each other just once each 16 steps

Using tiles 8x8 yje swapping rate can rise at once each 8 frames and you can update the parallax faster
but the VP copy becomes very inefficient

Por djh1697

Paragon (1643)

Imagen del djh1697

01-07-2008, 22:52

I have a turboR GT, i am considering selling it, lack of cash mainly. I'll stick with a 8245 MSX2, i can use that for most of my MSX desires.

Por RyJuZo

Master (236)

Imagen del RyJuZo

01-07-2008, 23:09

I have a turboR GT, i am considering selling it, lack of cash mainly. I'll stick with a 8245 MSX2, i can use that for most of my MSX desires.

I think you'll regret it ....but it will make somebody else very happy...

Por W76NearDark

Paladin (684)

Imagen del W76NearDark

02-07-2008, 00:01

A ST with 512kb inside it over here Smile

Por DamageX

Master (217)

Imagen del DamageX

02-07-2008, 05:42

PCM sound has no buffers or DMA support (this makes it practically unusable)
how does that work then, does the tR have an additional timer in it at least?

Por ro

Scribe (4708)

Imagen del ro

02-07-2008, 07:54

Same as nighnight, ST with a whopping (not) 512 KB of RAM stuffed innit using a soldering iron Smile
I love it, won't ever separate from it.

Por NYYRIKKI

Enlighted (5939)

Imagen del NYYRIKKI

02-07-2008, 17:34

PCM sound has no buffers or DMA support (this makes it practically unusable)
how does that work then, does the tR have an additional timer in it at least?

Yes, there is programmable timer on it. A1GT has also built in MIDI-timer, that can be used.

Por ARTRAG

Enlighted (6845)

Imagen del ARTRAG

02-07-2008, 17:40

do you mean the RTC that also MSX2's have ?

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