Search found 165 matches

by Controllerhead
Mon Oct 12, 2020 5:43 pm
Forum: General Stuff
Topic: Nin. Switch audio buzzes when docked - can i make a ground loop isolator?
Replies: 10
Views: 450

Re: Nin. Switch audio buzzes when docked - can i make a ground loop isolator?

But I do believe that it's not 5V and 15V simultaneously, and that marking means it can be either. Or possibly anywhere in-between. Yeah, so, i'm not feeling brave enough to just start throwing power supplies at it... Nintendo is not known for being standards compliant, and ...I just don't have the...
by Controllerhead
Mon Oct 12, 2020 5:26 pm
Forum: General Stuff
Topic: Nin. Switch audio buzzes when docked - can i make a ground loop isolator?
Replies: 10
Views: 450

Re: Nin. Switch audio buzzes when docked - can i make a ground loop isolator?

Do you have a friend you can borrow their power supply from? It'd be interesting to try replacing yours with some other source of 15V and see if that changes anything. I don't have any i can borrow from anyone at the moment... hmm... It outputs 5v @ 1.5A and 15v @ 2.6A, i don't think a USB-C phone ...
by Controllerhead
Mon Oct 12, 2020 2:58 pm
Forum: General Stuff
Topic: Nin. Switch audio buzzes when docked - can i make a ground loop isolator?
Replies: 10
Views: 450

Re: Nin. Switch audio buzzes when docked - can i make a ground loop isolator?

Is the Switch power supply plugged into the same outlet as the amplifier is? Yes. I tried playing with power: Same outlets, different outlets, in an audio receiver, in capture device, and directly to independently powered pro grade studio monitor speakers each with their own power supplies. No luck...
by Controllerhead
Mon Oct 12, 2020 1:24 pm
Forum: General Stuff
Topic: Nin. Switch audio buzzes when docked - can i make a ground loop isolator?
Replies: 10
Views: 450

Re: Nin. Switch audio buzzes when docked - can i make a ground loop isolator?

In headphones, or are you plugging it into a sound system? Ok, headphones do not buzz. I tried a few stereo receivers and an capture card and they all buzz at varying degrees of somewhat awful. Volume control on the switch (i think its digital) has no effect on the level of buzz. It sounds like 60h...
by Controllerhead
Mon Oct 12, 2020 1:09 pm
Forum: General Stuff
Topic: Nin. Switch audio buzzes when docked - can i make a ground loop isolator?
Replies: 10
Views: 450

Nin. Switch audio buzzes when docked - can i make a ground loop isolator?

I know there are tons of talented EE folks around here. Question: My Nintendo Switch buzzes a ton through the headphone jack, but only when it is docked. Researching tells me this is a somewhat common problem and i need a "ground loop isolator" to balance the DC... or something. Is this something i ...
by Controllerhead
Sat Oct 10, 2020 1:51 pm
Forum: NESdev
Topic: Question about Zelda 2 sprites
Replies: 9
Views: 506

Re: Question about Zelda 2 sprites

cbmeeks wrote:
Fri Oct 09, 2020 10:21 pm
I've never really debugged an NES game before (mainly a C64 developer).
Mesen is Wonderful.

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by Controllerhead
Thu Oct 08, 2020 1:19 pm
Forum: Newbie Help Center
Topic: Testing proximity
Replies: 2
Views: 205

Re: Testing proximity

Kitty_Space_Program wrote:
Wed Oct 07, 2020 3:59 pm
I’m making a block pushing game
Do you have any test maps drawn or rendering?
by Controllerhead
Tue Oct 06, 2020 7:42 pm
Forum: Newbie Help Center
Topic: Assembly optimization
Replies: 11
Views: 1169

Re: Assembly optimization

is it faster and or more space saving to do X or Y Always situational. I use this instruction reference with byte and cycle counts: https://www.masswerk.at/6502/6502_instruction_set.html Branch instructions are faster and smaller than a 16-bit JMP or JSR, but, they only have a range of -128 to 127 ...
by Controllerhead
Tue Oct 06, 2020 1:06 pm
Forum: Newbie Help Center
Topic: Assembly optimization
Replies: 11
Views: 1169

Re: Assembly optimization

- Count down instead of up: if possible, have your loop counters start from the highest value and decrement them down to 0 or -1, so you can use the CPU status flags Z or N, respectively, to detect the end condition, without the need for a CMP/CPX/CPY instruction per iteration. You can also count a...
by Controllerhead
Tue Oct 06, 2020 12:18 pm
Forum: Newbie Help Center
Topic: Would it be possible to mod a NES to have that "Allow more than 8 sprites per scanline" feature from emulators?
Replies: 25
Views: 4985

Re: Would it be possible to mod a NES to have that "Allow more than 8 sprites per scanline" feature from emulators?

You know, the LUA works fine and all but it detects any kind of sprite overflow, without being able to tell general overflows apart from those that are being used to achieve masking effects. It only detects what scanline the sprite overflow flag was set and draws it. The flag itself is prone to fai...
by Controllerhead
Mon Oct 05, 2020 11:48 pm
Forum: Newbie Help Center
Topic: Would it be possible to mod a NES to have that "Allow more than 8 sprites per scanline" feature from emulators?
Replies: 25
Views: 4985

Re: Would it be possible to mod a NES to have that "Allow more than 8 sprites per scanline" feature from emulators?

the lua script you provided and it works nicely! Thanks for that. Awesome! Could you possibly provide a version that works (in BizHawk)? No. Sorry =( I am using the Mesen specific Lua API to make that script work. I have never used bizhawk. The code is only 30 lines long though; it might be possibl...
by Controllerhead
Wed Sep 30, 2020 1:12 pm
Forum: NESdev
Topic: Should I hack more nes games besides mario?????
Replies: 8
Views: 966

Re: Should I hack more nes games besides mario?????

So super wrote:
Wed Sep 30, 2020 1:03 pm
unity
Good place to start.
So super wrote:
Wed Sep 30, 2020 1:03 pm
im making another one and is gonna release it
I'm looking forward to it!
by Controllerhead
Wed Sep 30, 2020 12:52 pm
Forum: General Stuff
Topic: Looks like NESCartDB is down (again)...
Replies: 71
Views: 31598

Re: Looks like NESCartDB is down (again)...

BootGod wrote: » Someone make me a damn logo! :)
I made a damn logo! :)

Image

Mockup: (Pixels should be accurate)
Image
by Controllerhead
Tue Sep 29, 2020 11:23 pm
Forum: NESdev
Topic: Should I hack more nes games besides mario?????
Replies: 8
Views: 966

Re: Should I hack more nes games besides mario?????

i know how to hack mario games Awesome! Did you post any of your work on romhacking.net? I love playing them. I compiled and ran this SMB1 disassembly in the Mesen debugger a few months back. Fun times! You could really make some awesome hacks with this... https://pbs.twimg.com/media/EUF2V0VVAAYl2r...
by Controllerhead
Thu Sep 24, 2020 8:28 pm
Forum: NESdev
Topic: 8-Way Scrolling Screen Compression Method?
Replies: 19
Views: 2058

Re: 8-Way Scrolling Screen Compression Method?

Something like the metatile IDs are loaded into a buffer, and in NMI I have a routine that takes the 4 tile bytes stuffed in the ID and shoves it through ppudata, and moves onto the next ID It's fast to use 2 buffers and stuff one with the tops and the other with the bottoms of the metatiles when s...