Search found 224 matches

by creaothceann
Sun Jun 21, 2020 11:17 pm
Forum: SNESdev
Topic: Retro Game Builder (make your own snes games)
Replies: 37
Views: 4065

Re: Retro Game Builder (make your own snes games)

Erockbrox wrote:
Sun Jun 21, 2020 8:52 pm
So don't just make the development software, also make an awesome game to go along with it
At some point he has to actually release something...
by creaothceann
Wed Jun 10, 2020 3:58 pm
Forum: SNESdev
Topic: Mesen-S - SNES Emulator
Replies: 350
Views: 150097

Re: Mesen-S - SNES Emulator

It's not impossible that OAM is guaranteed to be $00 (or $FF) on power on on the SNES, but I haven't seen any information on that particular topic. byuu captured the state of the RAM chips: http://www.mediafire.com/file/tfp8qy9zoo89lbs/ http://www.mediafire.com/file/xcelszub8ui0buo/ (PNG) There mig...
by creaothceann
Thu Jun 04, 2020 7:51 am
Forum: SNESdev
Topic: Mesen-S - SNES Emulator
Replies: 350
Views: 150097

Re: Mesen-S - SNES Emulator

A debugging feature that shows when & where an uninitialized memory location is accessed would help here, though probably not trivial to implement...
by creaothceann
Sat May 30, 2020 5:21 pm
Forum: SNESdev
Topic: [Super Mario World] Snes emulation help
Replies: 1
Views: 463

Re: [Super Mario World] Snes emulation help

Could be a problem in the CPU emulation or the memory mapping.
by creaothceann
Sun May 17, 2020 1:33 am
Forum: SNESdev
Topic: SNES Clone
Replies: 9
Views: 1295

Re: SNES Clone

Tiny Toon Bug Looks like either the game or the clone switches to regular Mode7 halfway through the screen (the game uses EXTBG to show the colored rings in front of the sprites). Super Mario World uses the same effect in the last boss fight to show Bowser in front of Mario and the castle. Contra 3...
by creaothceann
Sun May 03, 2020 1:18 am
Forum: SNESdev
Topic: bsnes-plus and xkas-plus (new debugger and assembler)
Replies: 208
Views: 140594

Re: bsnes-plus and xkas-plus (new debugger and assembler)

gizaha wrote:
Sat May 02, 2020 11:48 am
I couldn't [find] a way to contact byuu at github.
https://twitter.com/ares_emu
by creaothceann
Thu Apr 09, 2020 11:27 am
Forum: SNESdev
Topic: Mesen-S - SNES Emulator
Replies: 350
Views: 150097

Re: Mesen-S - SNES Emulator

I did find a strange use-case, going spelunking into a game rom with the active SNES palette. Unfortunately this effect, as-is can only be seen if you select the PRG, and presently maxes out at 40,000 bytes when the game is much larger. Find those sprites that were never seen in the game. Maybe jus...
by creaothceann
Fri Feb 21, 2020 3:05 am
Forum: SNESdev
Topic: SNES stack pushing to zero page? ...and other SNES related questions
Replies: 2
Views: 2113

Re: SNES stack pushing to zero page? ...and other SNES related questions

While debugging code I noticed that the return address for a subroutine was pushed to $00:00FE - $00:00FF instead of $00:01FE - $00:01FF . As far as I have read, SNES should use page 1 for stack just like NES, but still it seems to go to zero page. If you're in Emulation (65C02) mode, that's correc...
by creaothceann
Thu Feb 06, 2020 2:57 pm
Forum: General Stuff
Topic: Word of notice: Byuu is changing usernames
Replies: 10
Views: 5195

Re: Word of notice: Byuu is changing usernames

Bregalad wrote:
Thu Feb 06, 2020 12:54 am
And isn't this game already fan-translated in English since a long time ?
It's about the challenge and ticking off lifetime goals.
by creaothceann
Thu Jan 30, 2020 5:26 pm
Forum: SNESdev
Topic: DMA to WRAM on FC Twin
Replies: 27
Views: 15859

Re:

Bump! The reason I ask about HDMA is that there's a documented bug in the SFC (and possibly the Twin, or maybe they have to emulate it!) The glitch only occurs on revision 1 CPUs. And I'd be really surprised if they figured out how to reproduce it. The effect is seriously insane to witness. The enti...
by creaothceann
Sun Jan 05, 2020 12:27 pm
Forum: SNESdev
Topic: Save State/Load State GUI in emulators...
Replies: 38
Views: 21654

Re: Save State/Load State GUI in emulators...

zzo38 wrote:
Sun Jan 05, 2020 11:28 am
you also need to store the screenshot in each save file so it will also use disk space
112 KB for a 256x224x16bit preview. Even if you have only 1 GB of space left on your HDD / SSD / USB stick, that's still enough for over 9000 savestates...
by creaothceann
Fri Jan 03, 2020 6:55 am
Forum: General Stuff
Topic: Multi-pass assembler questions
Replies: 7
Views: 4485

Re: Multi-pass assembler questions

When a not-yet-defined symbol is used in an expression, what do you do? The expression needs to evaluate to something, or the line of code it comes from can't be assembled Just repeatedly do a pass that collects all the symbol names and values it can get, until the number of names without value rea...
by creaothceann
Thu Dec 26, 2019 6:53 pm
Forum: SNESdev
Topic: HDMA effects before the SNES
Replies: 5
Views: 3258

Re: HDMA effects before the SNES

Afaik on other systems that was done with display lists, interrupts or just plain cycle counting.
by creaothceann
Tue Dec 24, 2019 4:36 am
Forum: General Stuff
Topic: logic analyzer recommendations
Replies: 2
Views: 3973

Re: logic analyzer recommendations

For signals with a frequency f you need a sample rate of at least f * 2 in the logic analyzer. More = better, obviously. The type of probes matters a lot, too. https://www.youtube.com/watch?v=dobU-b0_L1I https://www.youtube.com/watch?v=xZ5wKYnCNcs https://sigrok.org/wiki/Probe_comparison I plan to t...
by creaothceann
Thu Dec 05, 2019 3:51 am
Forum: SNESdev
Topic: New Super Mario Land
Replies: 17
Views: 9690

Re: New Super Mario Land

Pokun wrote:
Wed Dec 04, 2019 1:46 pm
The fourth and worst part is the camera. It scrolls too far ahead and moves too slowly when changing directions, which makes it very annoying when you change directions often.
Agreed. People should really look at what's out there... 1 2 3 4