Search found 392 matches

by NovaSquirrel
Sun Apr 21, 2019 6:49 pm
Forum: SNESdev
Topic: Diagonal scrolling help
Replies: 16
Views: 10197

Re: Diagonal scrolling help

I actually move both axes at once, and then after that, check for and handle any updating. You think it's better to move an axis, prepare an update, then move the other axis and prepare that update, then do the two DMAs in the same axis order used here?
by NovaSquirrel
Sun Apr 21, 2019 6:11 pm
Forum: SNESdev
Topic: Diagonal scrolling help
Replies: 16
Views: 10197

Re: Diagonal scrolling help

Yeah I thought about problems from both the row and column updating at once. Changing that doesn't seem to fix it, and it's hard to tell exactly what's failing. I probably need to start over on the scrolling code but I don't really have correct guidelines to work from.
by NovaSquirrel
Sun Apr 21, 2019 5:41 pm
Forum: SNESdev
Topic: Diagonal scrolling help
Replies: 16
Views: 10197

Diagonal scrolling help

I've been developing for SNES and I want to have levels that are two screens tall, except to save video RAM for tiles instead, I'm using 64x32 tilemaps, but I'm running into problems with some occasional wrong tiles on the top half of the level, corresponding to the right tiles for the bottom half i...
by NovaSquirrel
Mon Apr 08, 2019 6:07 pm
Forum: General Stuff
Topic: Debian to package cc65. But why do NESASM and ASM6 exist?
Replies: 2
Views: 4451

Re: Debian to package cc65. But why do NESASM and ASM6 exist

I haven't checked NESASM, but ASM6 is a single .c file, and apt-get install asm6 is only slightly less effort than gcc asm6.c -o asm6, as opposed to the cc65 package being huge in comparison.
by NovaSquirrel
Sun Apr 07, 2019 7:21 pm
Forum: General Stuff
Topic: Inferiority complex?
Replies: 10
Views: 6503

Re: Inferiority complex?

I always loved to use any "level editor" or similar tools games offered to let me create my own take on something or to "add part of myself" to the content, eventually leading me to ROM hacking, and then sitting down and learning 6502 assembly. Exactly what I did. My level designs outgrew the games...
by NovaSquirrel
Sat Mar 30, 2019 3:04 pm
Forum: General Stuff
Topic: Why do homebrew cartridge releases get discontinued?
Replies: 9
Views: 10217

Re: Why do homebrew cartridge releases get discontinued?

Why pay $60 for a game when you know in a years time it will be released for free? Having a ROM available does not necessarily meant it would be available for free. It's very easy to put up a ROM for sale on a site like itch.io and that's what several homebrew games have done. If someone doesn't pr...
by NovaSquirrel
Fri Mar 29, 2019 5:56 pm
Forum: General Stuff
Topic: NovaCon 2019 / NESdev midwest meetup (July 20th?)
Replies: 27
Views: 24684

Re: NovaCon 2018 / NESdev midwest meetup (June 16th)

I'm pretty sure this is just more of a "hey, who wants to come hang out at my house?" sort of thing than an actual convention. Yeah basically! Referring to it as a convention is really more of a joke, as if a dinky little meeting at my house was in any way comparable to big things with thousands of...
by NovaSquirrel
Tue Mar 19, 2019 4:18 pm
Forum: General Stuff
Topic: NovaCon 2019 / NESdev midwest meetup (July 20th?)
Replies: 27
Views: 24684

Re: NovaCon 2018 / NESdev midwest meetup (June 16th)

Will there be one in 2019? I'd be up for it if other people are; probably would learn from bad decisions the first time and give out my number to attending people directly instead of putting it on the front of the house on a post-it note. We'd be able to meet up to play Micro Mages!!! And Super Hom...
by NovaSquirrel
Wed Mar 13, 2019 9:41 am
Forum: Homebrew Projects
Topic: Nalleland
Replies: 22
Views: 12315

Re: Nalleland

I really enjoyed the game and thought it was cute and creative, but I also got stuck on the first screen before realizing I could just walk to the right. I would personally put like an arrow sign or something. Playing through it again after having a better grasp on it I had fun finding all six of th...
by NovaSquirrel
Fri Mar 08, 2019 12:49 pm
Forum: NES Hardware and Flash Equipment
Topic: The state of PowerPak mappers
Replies: 32
Views: 18710

Re: The state of PowerPak mappers

I might be misunderstanding something here but wouldn't it be less convoluted to just use the released mapper source than to grab it out of MIST? Or does that include stuff like their MMC5 that I don't have source for? All of my own PowerPak mappers have been based on Loopy's, usually modifying MMC3...
by NovaSquirrel
Tue Mar 05, 2019 1:12 pm
Forum: NES Hardware and Flash Equipment
Topic: PowerPak mapper 30 implementation
Replies: 67
Views: 70616

Re: PowerPak mapper 30 implementation

When it comes, it will be an interesting challenge to emulate with the FPGA - especially given you cannot control all address pins. I've thought about this before, and the nuclear option if nothing else works is that you do have complete control over the data pins when doing reads in cartridge-cont...
by NovaSquirrel
Sun Mar 03, 2019 1:56 am
Forum: General Stuff
Topic: Do I brag about my own projects too much?
Replies: 22
Views: 15279

Re: Do I brag about my own projects too much?

If you're approaching a more general topic like that, and you want to explore the upsides and downsides of different ways to approach the topic, I think that's really something that belongs on the wiki. CHR ROM vs. CHR RAM is a really good article that's exactly what I'm talking about, and I tried t...
by NovaSquirrel
Sat Mar 02, 2019 12:37 am
Forum: General Stuff
Topic: Any modern systems with just have a CPU and a frame buffer?
Replies: 27
Views: 15592

Re: Any modern systems with just have a CPU and a frame buff

Do graphing calculators count as "modern" if they're still being sold in 2019? Even ignoring stuff from 1999, the TI-84+ CE was introduced in 2015 and it looks like it's just got a framebuffer and DMA.
by NovaSquirrel
Fri Mar 01, 2019 10:08 pm
Forum: General Stuff
Topic: Do I brag about my own projects too much?
Replies: 22
Views: 15279

Re: Do I brag about my own projects too much?

There's absolutely nothing wrong with mentioning your own projects when you're answering a question about how you would approach a problem. The act of posting a reply to the person's question means you're sharing your expertise with them, and I think sharing how you personally found it best to tackl...
by NovaSquirrel
Thu Feb 21, 2019 3:01 pm
Forum: General Stuff
Topic: The Difficulty of ARM Assembly
Replies: 57
Views: 26379

Re: The Difficulty of ARM Assembly

I have a processor in that same situation, and it's the 65ce02. From what I've read of it, It's mostly less capable than the 65816, being closer to the 65c02, except for one big difference, and that's a third "z" index register, which I'm very envious of... Minimum cycles per instruction is also 1 ...