SMW project status topic

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By Manuel

Ascended (16037)

Аватар пользователя Manuel

26-10-2015, 18:24

AFAIK the SMS vdp is like the MSX1 VDP with some scrolling added. So I'm not sure a port would be so easy. But perhaps people like Richard from Trilobyte can explain better, he has quite some experience with it Smile

By edoz

Prophet (2205)

Аватар пользователя edoz

26-10-2015, 19:47

It is a very cool project! Many thanks for all the effort!!
It is cool that it works with a standard msx2! That makes it even more crazy!

By AxelStone

Prophet (2723)

Аватар пользователя AxelStone

26-10-2015, 20:42

Manuel wrote:

AFAIK the SMS vdp is like the MSX1 VDP with some scrolling added. So I'm not sure a port would be so easy. But perhaps people like Richard from Trilobyte can explain better, he has quite some experience with it Smile

Really SMS VDP is between MSX1 and MSX2 VDP, it's 9928 (MSX1=9918, MSX2=9938). It's clearly oriented to make games since it has very impressive scroll and sprites capabilities (sprites in SMS are really colorfull). V9938 is more orientes for using with computers since it has improved palette (512 colors vs 64 colors) and high res modes (SC6, SC7).

I suposse that SMW could be adapted to SMS in some way, but by the moment we are really expecting MSX2 version Cool

By Huey

Prophet (2644)

Аватар пользователя Huey

26-10-2015, 21:41

Manuel wrote:

AFAIK the SMS vdp is like the MSX1 VDP with some scrolling added. So I'm not sure a port would be so easy. But perhaps people like Richard from Trilobyte can explain better, he has quite some experience with it Smile

Both MSX and SMS have their own limitations.
Where the SMS has better sprite and scrolling,it does have significant less VRAM and RAM available compared with MSX.

By segarules

Resident (37)

Аватар пользователя segarules

26-10-2015, 21:53

SMS have a TMS9918A with adictional mode 4 graphics.

By maxis

Champion (512)

Аватар пользователя maxis

26-10-2015, 22:31

AxelStone wrote:
Manuel wrote:

AFAIK the SMS vdp is like the MSX1 VDP with some scrolling added. So I'm not sure a port would be so easy. But perhaps people like Richard from Trilobyte can explain better, he has quite some experience with it Smile

Really SMS VDP is between MSX1 and MSX2 VDP, it's 9928 (MSX1=9918, MSX2=9938). It's clearly oriented to make games since it has very impressive scroll and sprites capabilities (sprites in SMS are really colorfull). V9938 is more orientes for using with computers since it has improved palette (512 colors vs 64 colors) and high res modes (SC6, SC7).

I suposse that SMW could be adapted to SMS in some way, but by the moment we are really expecting MSX2 version Cool

IMHO, SMS VDP scores the highest performance in the full random memory access thanks to its pseudo SRAM video memory. On top of that Sega could call their SMS 16 bit graphics, like TurboGrafx-16 since the Video RAM is 16 bit vs V9918/V9938/V9958 8 bit bus.

Finally, the sprites are the true 4 bpp with the colorful palette and priority planes.

I do agree with AxelStone, that SMS is the big step towards the arcade architecture.

Also, looking at the timeline, SMS VDP came later than V9938, so it is much more straightforward (more simple than Amiga Agnus) and more advanced in terms of the memory subsystem at the same time.

So, IMHO, unless the original SMS code is not optimal, it would be difficult to surpass the original graphics quality when porting to V99x8 VDP.

Talking about the main RAM, most of the MSX2 game cartridges don't really need more than 64K of RAM, and a lot are even happy with 16K.

Nevertheless, it is excellent, that it works on 99x8 platform! Great achievement!

By edoz

Prophet (2205)

Аватар пользователя edoz

26-10-2015, 22:20

Interesting thought to support it on other vdp as well Wink personally I like the thought for v9999 support Smile with multi layer scrolling Wink but probably that is only possible in pattern mode and not bitmap mode. Anyway it would already be cool to have it running on a plain msx 2 as that is already very impressive. Last preview looked amazing. And beside the looks the feeling of the controls surprised me even more. It was so much like the real one.. Very cool!

By Daemos

Paragon (1672)

Аватар пользователя Daemos

26-10-2015, 23:01

We will leave all the extra support for HW to future developers. We are going to finish the game and make it work on plain MSX2 (with joystick, joymega, R800 supprt etc etc etc.), after that we are done with it for the obvious reasons Wink. Luckily the source will be fully documented and released so anyone can be free to fix problems or port it to other systems or even add V9990 support etc etc etc. When questions arise I am happy to awnser them in the future as well so future developers won't be left on their own if they dare to undertake a heavy project.

All your positive comments are highly motivating and I must admit that the teams motivation is dropping a little bit. We are getting a little bit more sloppy but don't worry. We are nearing the end of the difficult coding issues. After world3, 4 gets finished things will go really fast. In the end I will no longer need to code things and can help out on the map making speeding the progress even further.

Summer stop is somewhat over now but my time is currently very limited due to some private reasons so progression is somewhat slower than the usual. In December my thesis and other annoying assignments will be finished and life will be back to normal mode with all the plenty of time I am used to have. Expect from that point the game to be finished in less than 2 years!

When I get to it a ROM gets uploaded with the latest progressions.

So far thank you all for your great support!

By Daemos

Paragon (1672)

Аватар пользователя Daemos

14-11-2015, 16:29

Just letting you guys know that the current progress is doing fairly well without too horrible unexpectencies. The cave maps are now complete and the first ghosthouse is as good as fully functional. the p-boxes are improved even further and now let the brown blocks dissapear properly spawning coins in place and vice versa.

Had to recode the door, exit system to make the ghosthouse work but all is looking super now. Waiting for the worldmap to be created for merging. Then I will upload a rom. There will propably be regressions in the code but we will get to that later.

By iamweasel2

Hero (549)

Аватар пользователя iamweasel2

14-11-2015, 17:01

Great news ! Thanks for the update. Smile

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