Search found 167 matches

by orlaisadog
Mon Jul 16, 2018 2:18 pm
Forum: NESdev
Topic: [IDEA] CHIP-8 interpreter on NES? (NROM, no expansion RAM)
Replies: 62
Views: 9215

Re: [IDEA] CHIP-8 interpreter on NES? (NROM, no expansion RA

I have other things to do in computer time (yes I'm a child and I'm only 13) but they are no more useful than this. Anyway I don't know enough. Yet.
by orlaisadog
Mon Jul 16, 2018 2:15 pm
Forum: NESdev
Topic: [IDEA] CHIP-8 interpreter on NES? (NROM, no expansion RAM)
Replies: 62
Views: 9215

Re: [IDEA] CHIP-8 interpreter on NES? (NROM, no expansion RA

But what else would I do in that time? This teaches me skills do I can become a programmer when I'm older.
by orlaisadog
Mon Jul 16, 2018 2:09 pm
Forum: General Stuff
Topic: Nesdev magazine progress
Replies: 58
Views: 24719

Re: There should be a NesDev magazine (Poll)

Every month or two? Well, I'm making one anyway :D
by orlaisadog
Mon Jul 16, 2018 1:45 pm
Forum: General Stuff
Topic: Nesdev magazine progress
Replies: 58
Views: 24719

Re: There should be a NesDev magazine (Poll)

What a front page could be:

NesDev
Which flashcart is right for you?

Asm6 programming tutorial

FREE homebrew games download!

Q&A

Hot topics from the forums

Complete guide to the PPU

£2.99

Hopefully that answers your questions.
by orlaisadog
Mon Jul 16, 2018 1:35 pm
Forum: NESdev
Topic: [IDEA] CHIP-8 interpreter on NES? (NROM, no expansion RAM)
Replies: 62
Views: 9215

Re: [IDEA] CHIP-8 interpreter on NES? (NROM, no expansion RA

As I said (many times) I'll use forced blanking for more PPU communication time. What you said about RAM is a good point, but I enjoy programming so the time thing isn't relevent for me.
by orlaisadog
Mon Jul 16, 2018 10:43 am
Forum: NESdev
Topic: [IDEA] CHIP-8 interpreter on NES? (NROM, no expansion RAM)
Replies: 62
Views: 9215

Re: [IDEA] CHIP-8 interpreter on NES? (NROM, no expansion RA

Well, 512 bytes are reserved so it's fine The CHIP-8 only has 3.5KB of usable RAM, so the figures are perfect. Anyway, isn't that what NesDev is about? By the way, I'm not saying this is the best way, I'm just discussing how it could be done.
by orlaisadog
Mon Jul 16, 2018 9:41 am
Forum: Test Forum
Topic: 5
Replies: 0
Views: 12660

5

[url=http://www.example.com"%20onclick="alert('Hello')]text[/url]
5
6
7
by orlaisadog
Mon Jul 16, 2018 9:35 am
Forum: General Stuff
Topic: Nesdev magazine progress
Replies: 58
Views: 24719

Nesdev magazine progress

Original title: There should be a NesDev magazine (Poll)
You could subscribe and it would have advice and info. I don't know what else to say...

Progress: Example front cover made (attached)
I used https://3dwarehouse.sketchup.com/model/ ... -cartridge
by orlaisadog
Mon Jul 16, 2018 9:15 am
Forum: NESdev
Topic: [IDEA] CHIP-8 interpreter on NES? (NROM, no expansion RAM)
Replies: 62
Views: 9215

Re: [IDEA] CHIP-8 interpreter on NES? (NROM, no expansion RA

And CHR-RAM would need PPU access anyway. I need to read posts all the way through...
by orlaisadog
Mon Jul 16, 2018 9:06 am
Forum: NESdev
Topic: [IDEA] CHIP-8 interpreter on NES? (NROM, no expansion RAM)
Replies: 62
Views: 9215

Re: [IDEA] CHIP-8 interpreter on NES? (NROM, no expansion RA

tokumaru wrote:crazy at the software level, which makes me much more confident
by orlaisadog
Mon Jul 16, 2018 8:59 am
Forum: NESdev
Topic: [IDEA] CHIP-8 interpreter on NES? (NROM, no expansion RAM)
Replies: 62
Views: 9215

Re: [IDEA] CHIP-8 interpreter on NES? (NROM, no expansion RA

But we only need 3.5K. Anyway it should only take a few instructions to access and I can program, just in Scratch (very well) and Python (not so well). Scratch is like any other language, but people think it's simple as it's block-based but if you try hard enough you can even do proper polygon-based...
by orlaisadog
Mon Jul 16, 2018 12:16 am
Forum: NESdev
Topic: [IDEA] CHIP-8 interpreter on NES? (NROM, no expansion RAM)
Replies: 62
Views: 9215

Re: [IDEA] CHIP-8 interpreter on NES? (NROM, no expansion RA

orlaisadog wrote:We can get more memory for the interpreter by duplicating tiles 16 times, so we can used the unused 4 bits to get more RAM for the interpreter.
by orlaisadog
Mon Jul 16, 2018 12:13 am
Forum: NESdev
Topic: [IDEA] CHIP-8 interpreter on NES? (NROM, no expansion RAM)
Replies: 62
Views: 9215

Re: [IDEA] CHIP-8 interpreter on NES? (NROM, no expansion RA

And software is free. Hardware is not.
by orlaisadog
Mon Jul 16, 2018 12:12 am
Forum: NESdev
Topic: [IDEA] CHIP-8 interpreter on NES? (NROM, no expansion RAM)
Replies: 62
Views: 9215

Re: [IDEA] CHIP-8 interpreter on NES? (NROM, no expansion RA

Ditch the crazy RAM layout though, there's no way that'll work. OAM isn't even a full 256 bytes you can use, since the unused bits of the sprite attribute bytes aren't even stored. But that's the fun part... :( Anyway, 2KB of onboard RAM, plus 1KB for the unused nametable. I need 16 full-width rows...
by orlaisadog
Mon Jul 16, 2018 12:10 am
Forum: NESdev
Topic: [IDEA] CHIP-8 interpreter on NES? (NROM, no expansion RAM)
Replies: 62
Views: 9215

Re: [IDEA] CHIP-8 interpreter on NES? (NROM, no expansion RA

While this isn't the simplest thing to do on the NES, it isn't the most complex either. There's actually very little NES-specific stuff involved... once you figure out the screen drawing and input, the rest is basically pure 6502 logic. Ditch the crazy RAM layout though, there's no way that'll work...