Search found 339 matches
- Fri Jul 15, 2022 2:43 pm
- Forum: SGDK
- Topic: polygon is not drawn
- Replies: 19
- Views: 40401
Re: polygon is not drawn
You didn't allocate it, and wrote to random memory. You really need to review your C basics.
- Fri Jul 15, 2022 5:35 am
- Forum: Megadrive/Genesis
- Topic: Cart Design Questions
- Replies: 70
- Views: 146437
Re: Cart Design Questions
Surely you can repeat the test with recording different lines? If the ROM does the same thing, and only one thing, you can first record these lines, then those lines... Saves money vs a big scope. edit: Or if you really need simultaneous channels, buy several and have them record at once ;) If you h...
- Thu Jul 14, 2022 2:48 pm
- Forum: Megadrive/Genesis
- Topic: Cart Design Questions
- Replies: 70
- Views: 146437
Re: Cart Design Questions
The Saleae logic16 clones are very cheap and work well, if the specs are enough for you (16 channels etc). IIRC I paid under 20$ from ali.
- Thu Jun 30, 2022 6:25 am
- Forum: Hardware
- Topic: Joy ID on my own controller
- Replies: 2
- Views: 6856
Re: Joy ID on my own controller
Probably tons, just search github for it. Usually they use a microcontroller to emulate one, soldering real buttons to GPIOs is just an extension of that.
It's all more expensive than the targeted, small chips of real controllers, but well doable yourself.
It's all more expensive than the targeted, small chips of real controllers, but well doable yourself.
- Fri May 20, 2022 6:31 am
- Forum: Demos
- Topic: WIP Satan Claus - Mega Drive / Genesis / 32x
- Replies: 9
- Views: 17949
Re: WIP Satan Claus - Mega Drive / Genesis / 32x
The current pics lack a bit in contrast. Try making the BG elements darker so they can be more clearly told apart from FG.
- Thu May 12, 2022 5:54 am
- Forum: SGDK
- Topic: How do I use the Spade character?
- Replies: 4
- Views: 4957
Re: How do I use the Spade character?
'z'+1 is a char, not a part of a string.
Code: Select all
const char foo[] = { 'h', 'e', 'l', 'l', 'o', 'z' + 1, '\0' };
- Wed May 11, 2022 7:42 am
- Forum: SGDK
- Topic: How do I use the Spade character?
- Replies: 4
- Views: 4957
Re: How do I use the Spade character?
'z'+1 or {
- Tue Mar 22, 2022 8:17 am
- Forum: SGDK
- Topic: SRAM to tackle lack of RAM?
- Replies: 4
- Views: 5048
Re: SRAM to tackle lack of RAM?
Store a list of the filled pixels. As ranges, very little space taken.
- Mon Mar 21, 2022 6:04 pm
- Forum: SGDK
- Topic: SRAM to tackle lack of RAM?
- Replies: 4
- Views: 5048
Re: SRAM to tackle lack of RAM?
The battery is not used when the console is on. It's for keeping power when the console is off.
You might also use a command undo queue, instead of storing pixel-level changes.
"plot black at 12,23"
"fill area at 15,5 with green"
You'd just store the inverse commands, taking very little ram.
You might also use a command undo queue, instead of storing pixel-level changes.
"plot black at 12,23"
"fill area at 15,5 with green"
You'd just store the inverse commands, taking very little ram.
- Thu Feb 03, 2022 4:08 pm
- Forum: SGDK
- Topic: Best way to access nibbles
- Replies: 2
- Views: 5380
Re: Best way to access nibbles
Union-struct is the nicest way, but nibble access won't be fast no matter what.
- Tue Jan 25, 2022 5:28 pm
- Forum: Super 32X
- Topic: Untitled 32X Super Scalar Project
- Replies: 34
- Views: 40651
Re: Untitled 32X Super Scalar Project
Oh, didn't know it was write-through, thanks for the correction. And sad that you bowed to the crazies. I would have kept the words and banned the crazies.
- Tue Jan 25, 2022 8:28 am
- Forum: Super 32X
- Topic: Untitled 32X Super Scalar Project
- Replies: 34
- Views: 40651
Re: Untitled 32X Super Scalar Project
Uncached on both cpus, or manual syncs between.
- Fri Jan 14, 2022 5:51 pm
- Forum: Exodus
- Topic: Timing analysis using Exodus
- Replies: 8
- Views: 5233
Re: Timing analysis using Exodus
If you don't need cycle-accurate reports, you can easily do visual profiling on any emulator or even real hw. VDP_setEnable(0) and (1) around the code, and you will see on screen how many lines it takes. One line is about 500 cpu cycles. This is a quick and easy method that lets you see, for example...
- Wed Jan 05, 2022 11:39 am
- Forum: Super 32X
- Topic: Untitled 32X Super Scalar Project
- Replies: 34
- Views: 40651
Re: Untitled 32X Super Scalar Project
Code: Select all
cpu 1 ======------
cpu 2 ------======
- Thu Dec 23, 2021 9:38 am
- Forum: Megadrive/Genesis
- Topic: Gens r57shell mod- is it a back door.
- Replies: 3
- Views: 7213
Re: Gens r57shell mod- is it a back door.
Use open source programs and you don't have to guess.