Search found 183 matches
- Sat Apr 20, 2013 8:40 am
- Forum: SNESdev
- Topic: SNES rgb comparisons
- Replies: 10
- Views: 6322
Re: SNES rgb comparisons
Thanks for posting. I did something similar but with s-video: https://www.youtube.com/watch?v=K8TcINkc7eE Left = snes mini (onechip ppu) with a sony cxa2075 encoder wired up Right = s-video from a stock model 1 snes with the two ppu system Watch in hd for best results. As a bonus the cxa2075 gets ri...
- Mon Apr 15, 2013 3:29 pm
- Forum: SNESdev
- Topic: Help with 8mbit roms in a m27c160
- Replies: 4
- Views: 3898
Re: Help with 8mbit roms in a m27c160
Well the sad thing is this 27c160 barely increases the speed, oh well. More luck than anything else haha. As for access speed I burned some rom images to a m27c801-80 (80ns) chip and it made no difference. It just seems these ST chips overclock better than the Amtel chips.
- Sun Apr 14, 2013 8:26 pm
- Forum: SNESdev
- Topic: Help with 8mbit roms in a m27c160
- Replies: 4
- Views: 3898
Re: Help with 8mbit roms in a m27c160
Yes I didn't connect the pin to anything but ground. And yes I doubled the images of all games I burned. Tomorrow I'll try running stunt race fx and starfox 2 at default clock speeds and see if that helps at all. Stunt race fx has weird things happening I'll be driving normally and suddenly my car w...
- Sun Apr 14, 2013 9:28 am
- Forum: SNESdev
- Topic: Help with 8mbit roms in a m27c160
- Replies: 4
- Views: 3898
Help with 8mbit roms in a m27c160
I discovered that the m27c160 has a slightly faster access time than the m27c801 so it allows me to overclock games faster. I managed to get starfox 1 running fine on the chip by doubling the rom image in a hex editor and burning it. The highest address line I just tied to ground. I tried the same t...
- Sat Apr 13, 2013 5:54 am
- Forum: SNESdev
- Topic: Need help adding some super fx programming
- Replies: 25
- Views: 12419
Re: Need help adding some super fx programming
I never claimed more frames were added, I claimed the framerate increases. I never once said more frames get added I just said the framerate is sped up. Anyway I discovered that some superfx carts can overclock 2-3 mhz faster on certain games. There's no way to tell which ones can it's just trial an...
- Thu Apr 11, 2013 5:33 pm
- Forum: SNESdev
- Topic: Need help adding some super fx programming
- Replies: 25
- Views: 12419
Re: Need help adding some super fx programming
Sure it's the least I can do for all the help I got from here. I mostly used the amazing nocash superfx asm information here: http://nocash.emubase.de/fullsnes.htm#snescartgsunprogrammablerisccpuakasuperfxmariochip10games Before I started romhacking starfox 1 was the only game I had that would run a...
- Thu Apr 11, 2013 5:21 am
- Forum: SNESdev
- Topic: Need help adding some super fx programming
- Replies: 25
- Views: 12419
Re: Need help adding some super fx programming
57 mhz starfox 1 http://www.youtube.com/watch?v=ZLcw3O7aTgo&feature=youtu.be http://www.youtube.com/watch?v=qqi1aow6GZI&feature=youtu.be Setting the irq mask to "disable irq" stopped the games from glitching out when overclocked past a certain speed. Here's what starfox 1 used to l...
- Wed Apr 10, 2013 3:25 pm
- Forum: SNESdev
- Topic: Need help adding some super fx programming
- Replies: 25
- Views: 12419
Re: Need help adding some super fx programming
Got it working a while ago thanks a lot to all who helped especially mic_. I did just that I figured out how to get the breakpoints working found where it writes only once to 2100 and just replaced it with my register write and now starfox 1 runs at 57 mhz. What's interesting is in the config regist...
- Wed Apr 10, 2013 11:01 am
- Forum: SNESdev
- Topic: Need help adding some super fx programming
- Replies: 25
- Views: 12419
Re: Need help adding some super fx programming
The hex for rts is 60? The code I'm replacing is at 16263. I want to jump to 17f60. What would rom address 17f60 be in the jump command? I'm not sure where the rombanks begin and end.
- Wed Apr 10, 2013 9:46 am
- Forum: SNESdev
- Topic: Need help adding some super fx programming
- Replies: 25
- Views: 12419
Re: Need help adding some super fx programming
I succeeded by just overwriting a register write at 16263 The health bars of my friends are glitched as a result, I need help finding free space, writing a jump command, and relocating the original code so I can still execute it haha. But my experiment worked, setting high speed multiplier mode and ...
- Wed Apr 10, 2013 6:47 am
- Forum: SNESdev
- Topic: Need help adding some super fx programming
- Replies: 25
- Views: 12419
Re: Need help adding some super fx programming
I replaced all instances of 8D 00 21 with a9 xx before it, nothing changed....darn....
at 162d8 I changed "F8 02 8D 00 21" to something that changes the screen mode, that broke the game good haha. Don't think that's the right code though.
at 162d8 I changed "F8 02 8D 00 21" to something that changes the screen mode, that broke the game good haha. Don't think that's the right code though.
- Wed Apr 10, 2013 6:25 am
- Forum: SNESdev
- Topic: Need help adding some super fx programming
- Replies: 25
- Views: 12419
Re: Need help adding some super fx programming
Thanks, I already know this will work. After poking around the starfox 2 rom I discovered that starfox 2 doesn't have high speed multiplier mode enabled for some reason. Since I needed to disable double clock speed mode in the game to allow it to overclock faster, I just re-wrote that register write...
- Tue Apr 09, 2013 4:55 pm
- Forum: SNESdev
- Topic: Need help adding some super fx programming
- Replies: 25
- Views: 12419
Need help adding some super fx programming
Okay I'm doing some experimentation with the starfox 1.0 american rom. I want to add this line of hex code to the rom: "A9 A0 8D 37 30" This should tell the gsu series superfx chips to enable a mode that'll make it run smoother. Obviously you need a gsu 1 / 2 instead of the mario chip to m...
- Mon Apr 01, 2013 6:36 pm
- Forum: GBDev
- Topic: New BGB feature coming soon!
- Replies: 6
- Views: 4501
Re: New BGB feature coming soon!
I love bgb. It's the best debugger.
- Wed Mar 20, 2013 3:42 pm
- Forum: SNESdev
- Topic: SuperFX Multicart
- Replies: 22
- Views: 12713
Re: SuperFX multigame experement
This is insanely awesome!