Search found 1025 matches

by Oziphantom
Wed Jan 27, 2021 3:22 am
Forum: NESdev
Topic: Was there an NES expansion chip like SA-1
Replies: 30
Views: 1143

Re: Was there an NES expansion chip like SA-1

it would be interesting to see who it compares to a ZIP chip accelerator. 4Mhz 65C02 vs 5Mhz 8086 with buffer transfers etc. I would expect the ZIP chip to slaughter it. Then the 8Mhz or the Rocket Chip at 10mhz.
by Oziphantom
Tue Jan 26, 2021 10:35 pm
Forum: NESdev
Topic: Was there an NES expansion chip like SA-1
Replies: 30
Views: 1143

Re: Was there an NES expansion chip like SA-1

I couldn't see how an 8080 which is worse than a z80 would speed up floating point math operations. It's not a 8080 but an 8088 and at 5mhz, very different. I would be interesting to know what impact it had on the Apple ][ at large. People like to muse what would have happened to the C128 it if had ...
by Oziphantom
Tue Jan 26, 2021 10:31 pm
Forum: SNESdev
Topic: What is your process for creating graphics for the SNES?
Replies: 6
Views: 211

Re: What is your process for creating graphics for the SNES?

Programs :
Deluxe Paint V, Brilliance, Pro Motion NG.

Draw all your graphic with palettes and thus make sure you keep you palette in order for all of them. Don't ever let them get converted into 24bit images.

I use this for conversion https://github.com/Optiroc/SuperFamiconv
by Oziphantom
Mon Jan 25, 2021 11:12 pm
Forum: NESdev
Topic: Was there an NES expansion chip like SA-1
Replies: 30
Views: 1143

Re: Was there an NES expansion chip like SA-1

Yeah the Mocking Board was to improve the Apple ][s audio from being above "PC Speaker". Sadly they are not even compatible with themselves due to multiple models, and are not really that useful except that one game that you can almost convince yourself you are better than the C64 on ;) Well to be f...
by Oziphantom
Sun Jan 24, 2021 1:02 am
Forum: Newbie Help Center
Topic: How easy is it to kill an NES CPU?
Replies: 6
Views: 309

Re: How easy is it to kill an NES CPU?

how are you swapping between a 6502 and 2A03 ? do you have two sockets set up on the board?
by Oziphantom
Wed Jan 20, 2021 10:39 pm
Forum: Newbie Help Center
Topic: A good 6502 physical reference book in 2021.
Replies: 7
Views: 331

Re: A good 6502 physical reference book in 2021.

The "Machine Language for the Commodore 64, 128, and Other Commodore Computers by Jim Butterfield" is the book on the subject, however it might be very pricey due to demand. Personally I preferred "Commodore 64 Machine Code by Bruce Smith" published by SHIVA.(however the VIC-20 version is for all in...
by Oziphantom
Tue Jan 19, 2021 11:42 pm
Forum: General Stuff
Topic: Why did old video game pixel art look different depending on the developer's region?
Replies: 16
Views: 2855

Re: Why did old video game pixel art look different depending on the developer's region?

Deluxe paint makes it really easy to do it. So for cheap and quick art it's the "go to"
by Oziphantom
Tue Jan 19, 2021 11:41 pm
Forum: Newbie Help Center
Topic: Where to start: SNES development for web developer
Replies: 4
Views: 169

Re: Where to start: SNES development for web developer

65816 is niche, but its 6502++, so basically take any 6502 course, there are thousands of them. Be it books from the 80s written by Jim Butterfield or modern youtube channels. Find one that works for you. Once you know 6502, you can then put the 65816 into 65816 mode and enjoy the extra benefits. th...
by Oziphantom
Tue Jan 19, 2021 11:37 pm
Forum: General Stuff
Topic: Why did old video game pixel art look different depending on the developer's region?
Replies: 16
Views: 2855

Re: Why did old video game pixel art look different depending on the developer's region?

Oziphantom wrote:
Mon Jan 18, 2021 2:59 am
What is your incept date Ronian53?
AKA how old are you?
by Oziphantom
Tue Jan 19, 2021 11:36 pm
Forum: General Stuff
Topic: Why did old video game pixel art look different depending on the developer's region?
Replies: 16
Views: 2855

Re: Why did old video game pixel art look different depending on the developer's region?

DarkKobold wrote:
Tue Jan 19, 2021 8:03 pm
I always wondered why all "PAL Trash" games looked the same -

Zero Kamikaze Squirrel, Oscar, Fire & Ice, Sink or Swim, Mr. Nutz, Incantation, Zool...

They were mostly collect-a-thons, and all pretty bad. And they had the same art style.
Amiga ports, it was the "en vogue" style at the time.
by Oziphantom
Thu Jan 07, 2021 8:41 am
Forum: Other Retro Dev
Topic: Good PS1 Homebrew
Replies: 13
Views: 1540

Re: Good PS1 Homebrew

Since a Net Yaroze game has to fit in RAM there's not much room for PCM sound. When releasing Xi they just added Red Book audio to fill the CD I guess. The game itself is very small since it was developed entirely on the Net Yaroze and must fit in RAM. I don't know if it won some contest or somethi...
by Oziphantom
Thu Jan 07, 2021 5:55 am
Forum: Other Retro Dev
Topic: Good PS1 Homebrew
Replies: 13
Views: 1540

Re: Good PS1 Homebrew

The PS1 can't boot programs from the memory card like the PS2 can (which is exploited by Free MCBOOT). I don't have a Net Yaroze and don't know the details, but it supposedly comes with a dongle device that you use to hook up the computer to the memory card slot with so that you can load your creat...
by Oziphantom
Wed Jan 06, 2021 9:26 am
Forum: Other Retro Dev
Topic: Good PS1 Homebrew
Replies: 13
Views: 1540

Re: Good PS1 Homebrew

I would say the N64 is ultimately easier to develop for than the PS1, in some regards. The programmable pipeline stuff is a harder than fixed pipeline, but these days Shaders are common and once you set up a standard code set, not really an issue anymore. The PS1 however has really tight memory limi...
by Oziphantom
Sun Jan 03, 2021 10:03 pm
Forum: SNESdev
Topic: Using slow ROM for new games?
Replies: 21
Views: 3192

Re: Using slow ROM for new games?

Well, these are dreams, surely the idea of an 65816 running at 10.74mhz never was even contemplated. I spend more time thinking about that DMA at only 2.68 mhz, Could it be fault of the WRAM? (supposedly an WRAM of 3.58mhz could upgrade the DMA at 3.58mhz too, but all of this kind of hypothesis are...