Search found 2514 matches

by Chilly Willy
Sun Jan 21, 2018 9:53 pm
Forum: Demos
Topic: Teenage Queen MD released :)
Replies: 4
Views: 3816

Re: Teenage Queen MD released :)

Thanks. I wish more devs would do this. Even unfinished code is useful to some folks.
by Chilly Willy
Thu Jan 18, 2018 7:08 pm
Forum: Super 32X
Topic: Cartridge bigger than 32Mbits ?
Replies: 27
Views: 13790

Re: Cartridge bigger than 32Mbits ?

A quick look at the source shows v1.x doesn't look for "SSF" in the rom header when setting the options. v2 does. Thanks for posting about it. It may help someone else later, and let's us know we weren't crazy as your code looked fine. :D
by Chilly Willy
Wed Jan 17, 2018 9:19 pm
Forum: Super 32X
Topic: Cartridge bigger than 32Mbits ?
Replies: 27
Views: 13790

Re: Cartridge bigger than 32Mbits ?

You shouldn't be writing to 0xA130E6 unless you're trying to use the SD or USB. Also, how are you determining what is being read? Maybe it's working, but you're not displaying the value correctly to see it's working.
by Chilly Willy
Wed Jan 17, 2018 3:41 am
Forum: Super 32X
Topic: Cartridge bigger than 32Mbits ?
Replies: 27
Views: 13790

Re: Cartridge bigger than 32Mbits ?

You set RV, but do you unset it afterwards? You should also have ints disabled around setting these registers unless you can guarantee that it won't disturb any ints and/or won't be disturbed by ints.
by Chilly Willy
Fri Jan 12, 2018 4:49 pm
Forum: Hardware
Topic: TF530 as MD 68030 turbocard?
Replies: 9
Views: 627

Re: TF530 as MD 68030 turbocard?

ColdFire lacks a lot of instructions though, and the ones that remain aren't even encoded the same way from what I gather =/ May as well throw in a 2GHz ARM CPU instead. The CF68KLib allows most ColdFire processors to run 68k code; it supports 68000, 68020, 68030, 68EC040, 68EC060, CPU32, and CPU32...
by Chilly Willy
Thu Jan 11, 2018 4:40 pm
Forum: Hardware
Topic: TF530 as MD 68030 turbocard?
Replies: 9
Views: 627

Re: TF530 as MD 68030 turbocard?

Sik wrote:
Wed Jan 10, 2018 11:28 pm
Would be interesting to see what a ~26MHz 68000 could do.
Or ColdFire at 260 MHz. :twisted:
by Chilly Willy
Wed Jan 10, 2018 3:48 pm
Forum: SGDK
Topic: Tile Map Code
Replies: 19
Views: 368

Re: Tile Map Code

matteus wrote:
Wed Jan 10, 2018 11:23 am
Is there something you'd recommend I use instead of strclr?
memset(string, 32, len);

sets the string to spaces. Or use 0 to zero out the whole thing. Depends on how you're using the string.
by Chilly Willy
Wed Jan 10, 2018 3:42 pm
Forum: Hardware
Topic: TF530 as MD 68030 turbocard?
Replies: 9
Views: 627

Re: TF530 as MD 68030 turbocard?

You dont need compatibility for demoscene...Or 3d homebrew games...So special VDP in FPGA with more MHz?Maybe with hires modes and truecolor and simple 3d gpu... Put wait states on VDP accesses, and anything else that doesn't like to go fast. Have 1 or 2 MB of local ram at full speed for best perfo...
by Chilly Willy
Tue Jan 09, 2018 8:21 pm
Forum: SGDK
Topic: Tile Map Code
Replies: 19
Views: 368

Re: Tile Map Code

Could be the strings - you have to be very careful about not running past the max length. I've run into that in MANY programs. For example, you should be using snprintf instead of sprintf. You should also check that strclr is not clearing past the max length of the space allotted the strings.
by Chilly Willy
Mon Jan 08, 2018 10:36 pm
Forum: Demos
Topic: Project C - WIP - Sega Genesis / Mega Drive
Replies: 9
Views: 335

Re: Project C - WIP - Sega Genesis / Mega Drive

That parallax is really good. The foreground could use a little work, but it's just early progress.
by Chilly Willy
Mon Jan 08, 2018 8:37 pm
Forum: Demos
Topic: Papi Commando RELOAD !! *SgdK* - Megadrive
Replies: 62
Views: 3547

Re: Papi Commando RELOAD !! *SgdK* - Megadrive

Oooo, an intro! Those C++ idiots should have taken out Papi when they had the chance. :D
by Chilly Willy
Mon Jan 08, 2018 8:29 pm
Forum: Megadrive/Genesis
Topic: Developing a new engine
Replies: 6
Views: 334

Re: Developing a new engine

Yeah, the idea was that the SH2 DMA would handle the block in the background while the CPU was busy, with either the CPU or the VDP DMA handling the 68K side... and then they couldn't get the timing for the VDP DMA, and it looks like the timing for the 68000 barely squeaked by. You'll find reference...
by Chilly Willy
Sat Jan 06, 2018 9:38 pm
Forum: Tools
Topic: Compiling asmx
Replies: 13
Views: 1860

Re: Compiling asmx

Post a diff file, then. That should be fine regardless of the license (or lack thereof).
by Chilly Willy
Sat Jan 06, 2018 9:19 pm
Forum: Megadrive/Genesis
Topic: Developing a new engine
Replies: 6
Views: 334

Re: Developing a new engine

One reminder about the 32X - the 68K->SH2 DMA is flakey. You either need to not use it, or to add error checking and retries to the code. If you look at 32X games that use it, they transfer the data in small chunks, checksum the data and check the checksum after the data is transferred, have timeout...
by Chilly Willy
Tue Jan 02, 2018 2:11 pm
Forum: Blabla
Topic: Pokitto Game Handheld For Makers
Replies: 4
Views: 186

Re: Pokitto Game Handheld For Makers

The idea is that this is an existing product that is both programmable AND has an external bus (the header on the top of the device) that could be used as an interface to other things. One issue with using this with a Genny - it uses the 3.3V standard. It may need level shifters to use with old cons...