Search found 205 matches

by BigEvilCorporation
Thu Aug 31, 2017 10:22 am
Forum: Tools
Topic: Algorithm for splitting sprites
Replies: 70
Views: 11427

Re: Algorithm for splitting sprites

Funnily enough, I found myself needing this just yesterday.

I'm lazy and don't want to read the whole thread - which algo won?
by BigEvilCorporation
Mon Aug 14, 2017 10:09 am
Forum: UMDK
Topic: New Wiki: Building UMDK tools on Windows
Replies: 2
Views: 1340

Re: New Wiki: Building UMDK tools on Windows

I'm a bit late to the party but thanks so much for this!
by BigEvilCorporation
Wed Jul 19, 2017 8:55 am
Forum: SGDK
Topic: Where are all the games!
Replies: 10
Views: 1733

Re: Where are all the games!

We don't seem to have a showcase site for Mega Drive homebrew like other scenes do, it's all scattered around and some go unmissed. I might dedicate an area of my blog for it at some point.

Check out ESCAPE 2042: The Truth Defenders if you get a chance, it's a very very good game.
by BigEvilCorporation
Sun Jun 25, 2017 12:17 am
Forum: Tools
Topic: ASM68K.EXE symbol file reader
Replies: 0
Views: 1641

ASM68K.EXE symbol file reader

With a little help from some friends, I've managed to figure out ASM68K.EXE's symbol file format for converting addresses to files/lines, as well as the symbol table. C# implementation, hopefully straightforward enough to port to other langs: https://github.com/BigEvilCorporation/ASM68KSymbolDump My...
by BigEvilCorporation
Tue Jun 13, 2017 11:04 am
Forum: Collaboration
Topic: dragonbox.de cartridge production service
Replies: 6
Views: 3364

Re: dragonbox.de cartridge production service

I can vouch for the quality of the cart shells from dragonbox.de, they are excellent. Correct size for the cases, correct weight, they have the notch to fit Japanese consoles, and the plastic is good quality. There's no SEGA logo (replaced with a CE stamp) but no disclaimer text ("Do not immerse in ...
by BigEvilCorporation
Fri May 19, 2017 4:10 pm
Forum: Demos
Topic: Escape 2042: demo
Replies: 4
Views: 1405

Re: Escape 2042: demo

Testimonial here: this is a very good game. Well made, loads of fun.
by BigEvilCorporation
Fri Apr 21, 2017 11:32 pm
Forum: Demos
Topic: Tanglewood Tech Demo 0.1.04
Replies: 19
Views: 5790

Re: Tanglewood Tech Demo 0.1.04

Big update: Tech Demo 0.1.04 released! http://www.mediafire.com/file/as5beiw709o141f/TANGLEWD.BIN More info on our Kickstarter update: https://www.kickstarter.com/projects/63454976/tanglewood-an-original-game-for-the-sega-genesis-m/posts/1865664 The changelist is absolutely massive so I'll spare you...
by BigEvilCorporation
Fri Apr 21, 2017 2:57 pm
Forum: Megadrive/Genesis
Topic: The perfect "Hello World" example for new starters
Replies: 11
Views: 3546

Re: The perfect "Hello World" example for new starters

Yeah that stuff is so old and I only had a vague idea of what I was doing, I really need to start writing them again as actual tutorials (peer reviewed and fact checked). It was more of a diary. It was still very useful and I learned a lot from it. Out of curiosity, what was the issue that prevente...
by BigEvilCorporation
Thu Apr 20, 2017 8:42 pm
Forum: Megadrive/Genesis
Topic: The perfect "Hello World" example for new starters
Replies: 11
Views: 3546

Re: The perfect "Hello World" example for new starters

Thanks for posting this! I had been trying out some code based on your original blog posts, which was working fine on emulators but wouldn't boot on actual hardware. Looking forward to any updated tips. -Matt Yeah that stuff is so old and I only had a vague idea of what I was doing, I really need t...
by BigEvilCorporation
Thu Apr 20, 2017 7:53 pm
Forum: Megadrive/Genesis
Topic: Memory leak? Need some help -_-
Replies: 2
Views: 781

Re: Memory leak? Need some help -_-

You're using BSR for an infinite loop with no RTS - BSR will push the return address to the stack, and since you never return, it'll fill memory up with these addresses forever:

Code: Select all

 bsr		@Loopie
Use BRA if you never intend to return from the subroutine.
by BigEvilCorporation
Thu Apr 20, 2017 6:13 pm
Forum: Announcement
Topic: Future of SpritesMind
Replies: 38
Views: 8138

Re: Future of SpritesMind

Kaneda has allowed me to step in and help out with the moderation, in an effort ensure SpritesMind stays alive and well without causing him any more headaches. My promises to you all: - A level-headed, calm and neutral approach to handling disputes - No deletion of posts (except duplicates/honest mi...
by BigEvilCorporation
Tue Apr 18, 2017 10:43 pm
Forum: Megadrive/Genesis
Topic: 68000 programming optimization tips? (for speed)
Replies: 27
Views: 5693

Re: 68000 programming optimization tips? (for speed)

I've also had lengthy arguments with "professional" software developers over the speed advantages of testing for 0 as often as possible instead of testing for an arbitrary non-zero value since testing for 0 is built into all CPUs by default. This is a habit I've gotten into anyway, since I use 0 as...
by BigEvilCorporation
Mon Apr 17, 2017 2:34 pm
Forum: Megadrive/Genesis
Topic: The perfect "Hello World" example for new starters
Replies: 11
Views: 3546

Re: The perfect "Hello World" example for new starters

Ok here's an updated version with better comments, all magic numbers defined using EQU, and a simple V/H scrolling example: https://pastebin.com/FfaVsrFm I should add a disclaimer at the top saying it's for learning purposes only and may not be the most performant or organised code. I'll continue to...
by BigEvilCorporation
Mon Apr 17, 2017 12:47 pm
Forum: Megadrive/Genesis
Topic: The perfect "Hello World" example for new starters
Replies: 11
Views: 3546

Re: The perfect "Hello World" example for new starters

Commands: 100000 – VRAM Write 110000 – CRAM Write and should be: Commands: 000001 – VRAM Write 000011 – CRAM Write Oops, looks like I just wrote the bits from the wrong end. BTW got stuck cant make planes scroll for some reason :( , would you expand your new guide? Yeah I'll add to that snippet and...
by BigEvilCorporation
Mon Apr 17, 2017 10:30 am
Forum: Announcement
Topic: Future of SpritesMind
Replies: 38
Views: 8138

Re: Future of SpritesMind

I personally thought the forum was hacked first, so the important thing to me is that there was no harm in the end. Closing down the forum for one week might be a little overreacting but I can understand Kaneda's stressing out and being "pissed off" when he has to handle childish drama between memb...