Search found 149 matches
- Mon Apr 11, 2016 1:38 pm
- Forum: Sound
- Topic: New Documentation: An authoritative reference on the YM2612
- Replies: 865
- Views: 2391528
Re: New Documentation: An authoritative reference on the YM2612
Whoa :shock: talk about a show of technical prowess. Very nice. Actually, lately I've been having a wild itch for building a YM synth, I've seen posts here and there with schematics, but are these completed? I have the software programming knowledge but my electronic engineering skills are at a very...
- Sat Apr 09, 2016 2:53 am
- Forum: Sound
- Topic: New Documentation: An authoritative reference on the YM2612
- Replies: 865
- Views: 2391528
Re: New Documentation: An authoritative reference on the YM2612
Thank you for the clarity, I never was very sure about the best way to do this. I meant to test the wait times on hardware but wasn't sure of a good reliable method for doing so. I'm still open to doing so and posting results if someone has any accessible ideas.
- Fri Apr 08, 2016 11:35 am
- Forum: Sound
- Topic: New Documentation: An authoritative reference on the YM2612
- Replies: 865
- Views: 2391528
Re: New Documentation: An authoritative reference on the YM2612
Wouldn't that mean you'd need about 18 z80 nop instructions then? Why does this sound like too many...
- Fri Apr 08, 2016 3:18 am
- Forum: Sound
- Topic: New Documentation: An authoritative reference on the YM2612
- Replies: 865
- Views: 2391528
Re: New Documentation: An authoritative reference on the YM2612
I've been puzzled over the math involved in determining the number of cycles to wait in between register writes. The number is 24 internal cycles * 6 = 144 68000 cycles? If a 68k nop is 4 cycles, does that mean it would take 36 68k nop's in between writes? I swear that doesn't sound right, that seem...
- Fri Aug 07, 2015 12:02 am
- Forum: Super 32X
- Topic: Anyone have a copy of snasmsh2.exe?
- Replies: 4
- Views: 12744
- Thu Aug 06, 2015 5:00 am
- Forum: Super 32X
- Topic: Anyone have a copy of snasmsh2.exe?
- Replies: 4
- Views: 12744
Anyone have a copy of snasmsh2.exe?
It seems like all the links I found through google are dead and it'd be nice to be able to have an 32x assembler for when the time comes.
- Wed Jul 29, 2015 1:38 am
- Forum: Megadrive/Genesis
- Topic: DMA from ROM to CRAM, results are garbage
- Replies: 15
- Views: 12950
- Tue Jul 28, 2015 7:13 pm
- Forum: Megadrive/Genesis
- Topic: DMA from ROM to CRAM, results are garbage
- Replies: 15
- Views: 12950
- Sun Jul 26, 2015 7:17 am
- Forum: Collaboration
- Topic: Chaos Tracker (formerly YMDj/Prodigy) Genesis/MD/32x/SegaCD
- Replies: 2
- Views: 10906
Chaos Tracker (formerly YMDj/Prodigy) Genesis/MD/32x/SegaCD
After lots of great progress on the old tracker I lost all of my source code. Although it was pretty functional there were quite a few problems. Anyways I learned many great things the first time around and now I would like to start fresh with a solid foundation, with more efficient coding principle...
- Sat Jul 25, 2015 5:09 am
- Forum: Tools
- Topic: I've found the perfect 68k + z80 assembler.
- Replies: 1
- Views: 6862
I've found the perfect 68k + z80 assembler.
It's time for me to make a contribution to the forum. About the assembler... The hugest plus is that you can use it to assemble 68k and z80 code in one go WITHOUT needing to include pre assembed binaries. I tested this with success. The preprocessor seems to be compatible with multiple different typ...
- Tue Jul 21, 2015 6:26 pm
- Forum: Megadrive/Genesis
- Topic: Educational question about z80 and 68k
- Replies: 4
- Views: 4130
Haha it would still only be able to express one and only one note then, but at 697 different locations. Wishful thinking got the best of me. Well. I suppose one note per byte is the best it will be, which is still better than the original 2 bytes. Thanks for setting me straight on that one, I don't ...
- Tue Jul 21, 2015 5:50 am
- Forum: Announcement
- Topic: Don't forget what SpritesMind is
- Replies: 17
- Views: 46893
If it weren't for Spritesmind I would've never gotten as far as I did on my 68k asm genesis music sequencer. I lost the source code and sure people had their rude moments but I was nagging a bit too, that doesn't mean spritesmind is a failure. I'm going to start my music sequencer over again from sc...
- Tue Jul 21, 2015 5:43 am
- Forum: SGDK
- Topic: [C] Passing parameters by registers
- Replies: 8
- Views: 5099
- Tue Jul 21, 2015 5:37 am
- Forum: Megadrive/Genesis
- Topic: Educational question about z80 and 68k
- Replies: 4
- Views: 4130
I guess that real decompression can be done as you will have very few data to unpack at each frame, at max i guess you can send 500 bytes to the YM2612 and that is already a lot. Of course i don't consider the PCM data. Still i'm wondering if you are not too optimist with your compression schem.. (...
- Mon Jul 20, 2015 4:04 am
- Forum: SGDK
- Topic: [C] Passing parameters by registers
- Replies: 8
- Views: 5099
Wait. So it couldn't be done by including pre assembled .asm code? Would I have trouble mixing asm and C using SGDK? Of course you can do it by using assembly code, it's just that you cannot force C code to use registers when calling functions. Hey Stef :D Interesting... well it's not something I'v...