Search found 786 matches
- Wed May 02, 2007 8:08 am
- Forum: Sound
- Topic: Simple 4-channel sample player
- Replies: 45
- Views: 60792
Ok, here is first test ( RS , MF ), to be sure what M68K not hangs by some reasons (for example, in waiting loop). Now when you press keys, some messages displays, usually just 'wait after new sample' for short time. Try to stress program, and see what it will display. Also, when you get silence, ch...
- Wed May 02, 2007 6:49 am
- Forum: Sound
- Topic: Simple 4-channel sample player
- Replies: 45
- Views: 60792
- Wed May 02, 2007 6:05 am
- Forum: Sound
- Topic: Simple 4-channel sample player
- Replies: 45
- Views: 60792
Your code doesn't work perfectly... after "stressing" it, it went silent. Only reset helps, I don't know if it happens on emulators. I tried to stress it in KMod, Gens32, Fusion, by some minutes each - without success (still works). Is it stable problem on real hardware? If so, I can make some test...
- Tue May 01, 2007 9:52 pm
- Forum: Sound
- Topic: Simple 4-channel sample player
- Replies: 45
- Views: 60792
SegaCD ? the goal is to have that working on a simple genesis =) At least it's mine :p I also share this point, but mainly because I can easily go and buy new SMD clone for ~$20 (or get an used one for free), but I must spend very many time and money to get a SegaCD (by the way, I had one long ago,...
- Tue May 01, 2007 9:24 pm
- Forum: Sound
- Topic: Simple 4-channel sample player
- Replies: 45
- Views: 60792
It's something exactly known and independant from the system. ... Maybe I not understand clearly what you're saying. But I can say - M cycle not always take 4T, it has range of 3..5T - look here for additional info. And I can't be wrong about instructions timing in case with no-wait systems because...
- Tue May 01, 2007 9:56 am
- Forum: Sound
- Topic: Simple 4-channel sample player
- Replies: 45
- Views: 60792
I meant this: I meant IF there would have been several PCM channels and reprogrammable timer for each, there would not be need for software mixing... If you imagine that you have these several DAC's and timers, and try to make sample player for it, you get what I meant. You don't need to have many ...
- Mon Apr 30, 2007 9:00 pm
- Forum: Sound
- Topic: Simple 4-channel sample player
- Replies: 45
- Views: 60792
I'll upload fixed version later, when implement empty buffer in ROM, hope it fix 'static' on real hardware, which TmEE co.(TM) mentioned. Sorry for delay, I made new version two days ago, but not had access to internet. Here is it (or here ), both source code and compiled demo. TmEE co.(TM) , pleas...
- Sat Apr 28, 2007 2:12 am
- Forum: Sound
- Topic: Simple 4-channel sample player
- Replies: 45
- Views: 60792
About not working in Fusion and not stable run on real hardware - this is a my very stupid mistake, I forgot about stack pointer on Z80 startup (so return from call wrYmPortA sends Z80 to nowhere). Just add ld sp,#1fff at start of code (before or after di ), and it will work. I'll upload fixed versi...
- Fri Apr 27, 2007 9:49 pm
- Forum: Sound
- Topic: Simple 4-channel sample player
- Replies: 45
- Views: 60792
Sometime some instructions do more than their 7 or 11 cycles because of the bus delay (we have one extra cycle then : 8 or 12). I think you are aware of that Z80 behavior but i'm not sure you take care of that in the cycle counting. Afaik, Z80 in SMD works that way: - Z80 RAM is a separate SRAM IC,...
- Fri Apr 27, 2007 4:55 pm
- Forum: Sound
- Topic: Simple 4-channel sample player
- Replies: 45
- Views: 60792
I don't think it can be useful in real programs Really? Why? :P Because this player takes almost all time of Z80 for sample playing only, and it's very hard to add music player on Z80 side. Music in sample format take too much space (30sec=~469K). So there is only solution which I mentioned above -...
- Fri Apr 27, 2007 5:35 am
- Forum: Sound
- Topic: Simple 4-channel sample player
- Replies: 45
- Views: 60792
Simple 4-channel sample player
It's not question about. It's just my 4-channel sample player, which I wrote in testing purposes in past 3 days (and finished today). Maybe it can be useful for someone, possible in educational purposes - because I don't think it can be useful in real programs (until you write music player for M68K ...
- Fri Apr 27, 2007 3:25 am
- Forum: Tools
- Topic: TFM Music Maker
- Replies: 278
- Views: 344958
There is plans for TFM music compo on upcoming DiHalt'07 party, although nobody sure about it (for now it's even not included in compo list). TurboSound FM compo added to compo list. Two works from one author max, not more than 3 minutes, only 15 works will be showed/voted. Party will be in 2-3 Jun...
- Thu Apr 26, 2007 4:31 pm
- Forum: Blabla
- Topic: NES programming
- Replies: 39
- Views: 27424
- Thu Apr 26, 2007 2:59 pm
- Forum: Tools
- Topic: PSG and Tracker
- Replies: 2
- Views: 4725
- Wed Apr 25, 2007 7:13 pm
- Forum: Blabla
- Topic: NES programming
- Replies: 39
- Views: 27424