Search found 2571 matches

by Chilly Willy
Tue Jul 17, 2018 1:53 pm
Forum: Cartridge
Topic: Size limits
Replies: 11
Views: 140

Re: Size limits

Yes, I think a full word per bank would be better. They clearly wouldn't have had enough pins or gates for that at the time, but these days, why not? :D

At that point, amount of memory you can address gets silly.
by Chilly Willy
Mon Jul 16, 2018 5:35 pm
Forum: Cartridge
Topic: Size limits
Replies: 11
Views: 140

Re: Size limits

Yes, but they show always setting the two upper bits to 0, so they could have thought about expanding it later. That never happened, of course, and roms on the Genesis/32X never reached 32MB, much less bigger. They did reach 64MB on the N64, so if the 32X had been a run-away success ( :lol: ), it mi...
by Chilly Willy
Mon Jul 16, 2018 2:46 pm
Forum: Demos
Topic: Tänzer, a "ninja" game (Dev Diary thread)
Replies: 175
Views: 9753

Re: Tänzer, a "ninja" game (Dev Diary thread)

Maybe the pillar has elevator action. :wink:

Looking great! Can't wait until it's done and we get carts! :D
by Chilly Willy
Mon Jul 16, 2018 2:44 pm
Forum: Demos
Topic: Mega Man X
Replies: 9
Views: 417

Re: Mega Man X

Very nice! I always liked MegaMan. :D
by Chilly Willy
Mon Jul 16, 2018 2:40 pm
Forum: Cartridge
Topic: Size limits
Replies: 11
Views: 140

Re: Size limits

The mapper is fully documented in the 32X docs in the 32X Development Equipment section. It uses registers from $A130F1 to $A130FF as controls for eight banks of 512KB each. Bank 0 cannot be changed and it's register is a control register for save ram. The other seven use six bits to set the bank se...
by Chilly Willy
Sun Jul 15, 2018 7:26 pm
Forum: Cartridge
Topic: Size limits
Replies: 11
Views: 140

Re: Size limits

The standard SEGA mapper (often incorrectly called the SSF2 mapper as it was the only game to use it) allows up to 32MBytes of rom via bank switching. Most available flash carts don't go that high. For example, the current Mega Everdrive only allows up to 15MB. If you make the cart yourself and use ...
by Chilly Willy
Mon Jul 02, 2018 10:42 pm
Forum: SGDK
Topic: dealing with matrices (arrays)
Replies: 22
Views: 539

Re: dealing with matrices (arrays)

u16 is an unsigned short int, while u32 is an unsigned long int (the long part is optional). If your collision array can only have values between 0 and 255, you should make it a byte array to take less space. If it's in the rom, it's not as big a deal, but you should use const in front of the array ...
by Chilly Willy
Mon Jul 02, 2018 3:40 pm
Forum: SGDK
Topic: dealing with matrices (arrays)
Replies: 22
Views: 539

Re: dealing with matrices (arrays)

While you can always do your own indexing to use multi-dimensional arrays in a single dimension, C can also handle multi-dimensional arrays as well.

https://www.tutorialspoint.com/cprogram ... arrays.htm
by Chilly Willy
Mon Jul 02, 2018 2:41 pm
Forum: Demos
Topic: wolfenstein demo for sega genesis
Replies: 359
Views: 103260

Re: wolfenstein demo for sega genesis

I suspect that using sp odd works with byte read/write, but you'd have to disable interrupts or the first int will crash the system. The strange stack operation for bytes is most useful when fetching data from odd locations as bytes while avoiding shifts. move.b (d16,a0),-(sp) ; 16 move.w (sp)+,d0 ;...
by Chilly Willy
Wed Jun 27, 2018 4:51 pm
Forum: Demos
Topic: Tänzer, a "ninja" game (Dev Diary thread)
Replies: 175
Views: 9753

Re: Tänzer, a "ninja" game (Dev Diary thread)

Wells Fargo caught a LOT of flack over issues the last few years, so they're kinda desperate to prove that you can trust them to keep their remaining customers. So they've been more pro-active on matters like possibly fraudulent charges on credit cards the last few years. I was rather fortunate that...
by Chilly Willy
Tue Jun 26, 2018 2:51 pm
Forum: Demos
Topic: Tänzer, a "ninja" game (Dev Diary thread)
Replies: 175
Views: 9753

Re: Tänzer, a "ninja" game (Dev Diary thread)

Speaking of kickstarter, I had "fun" with that today. The bank (Wells Fargo) took one look at the transaction, saw it was foreign money, canceled the transaction and locked the card. I had to unlock the card, authorize the transaction, and re-pledge at kickstarter. While I like that they're looking ...
by Chilly Willy
Sun Jun 24, 2018 7:14 pm
Forum: Tools
Topic: Beehive - a Mega Drive tile and map editor
Replies: 26
Views: 7514

Re: Beehive - a Mega Drive tile and map editor

What tools do you use to convert a 16-color indexed image into a 4bpp bitmap? GIMP can only go down to 8bpp :?: I'm have the latest GIMP installed. I imported a PNG, reduced it to 16 colors, exported it as a BMP, and it's 16 colors, not 256. The header says 4 bits per pixel, and when I load it, it ...
by Chilly Willy
Mon Jun 18, 2018 12:40 pm
Forum: Demos
Topic: Tänzer, a "ninja" game (Dev Diary thread)
Replies: 175
Views: 9753

Re: Tänzer, a "ninja" game (Dev Diary thread)

Thanks, everyone. I'm feeling well enough that I'm programming again (I help out on hyper3DGE, among other projects), and I'm working on getting my Genny set up as well. Still need to locate my Dreamcast... too many damn boxes! :lol: Just updated to Xubuntu 18.04, so at least that's done for another...
by Chilly Willy
Sun Jun 17, 2018 3:54 pm
Forum: Demos
Topic: Tänzer, a "ninja" game (Dev Diary thread)
Replies: 175
Views: 9753

Re: Tänzer, a "ninja" game (Dev Diary thread)

Actually moved to someplace smaller. We had two houses on almost 4 acres that was just too big for me and my brothers. So we moved across the US to be closer to (remaining) family and got a much smaller place. However, the move also gave me an ulcer. So I've spent the last four months feeling like I...
by Chilly Willy
Sun Jun 17, 2018 3:49 pm
Forum: Demos
Topic: wolfenstein demo for sega genesis
Replies: 359
Views: 103260

Re: wolfenstein demo for sega genesis

Yes, it's just incredible how well it runs on a stock Genny.