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sage

Member Since 19 Jul 2002
OFFLINE Last Active Today, 11:11 AM

#3987478 Alpine Games (Orange case)

Posted by sage on Sat Mar 17, 2018 2:36 PM

The orange plastic case is around ~50cents.




#3935563 MIDI Lynx Synthesizer

Posted by sage on Mon Jan 15, 2018 4:19 AM

Jesus man, the wod song sounds great! What game is it from? I looked through all games on W on lemon64 but couldn't find anything abbreviated WOD there at least.

 

The individual sounds sound so good too, especially the bass and the snare!

 

Atari ST: Wings of Death and Lethal Excess.

 

The snare and Drum is silently stolen from the Zaku sound engine.




#3935562 MIDI Lynx Synthesizer

Posted by sage on Mon Jan 15, 2018 4:17 AM

Turrican on the Lynx... even if its just one track, thats very cool.

well, four.

press A on the second screen (switchable by opt1) to cycle throu them.




#3935054 MIDI Lynx Synthesizer

Posted by sage on Sun Jan 14, 2018 12:11 PM

Wishlist continues...

Attached File  wod.zip   17.66KB   132 downloads

 

... now with pitch slides.

Attached File  turr.zip   12.5KB   126 downloads




#3929344 MIDI Lynx Synthesizer

Posted by sage on Sun Jan 7, 2018 7:04 AM

Sending MIDI commands (by serial, comlynx adapter) to two lynxes:

 

http://lynxdev.atari...h_2x4_chan.webm

 

using a pmidi and a modified ttymidi to play normal midi files.

 




#3929340 MIDI and Lynx

Posted by sage on Sun Jan 7, 2018 6:49 AM

Hi there,

 

Maybe a few of you wondered why there is (in the original BLL kit) a com program to interface the lynx with 31250baud to an Atari ST?

Short answere: The Lynx has some very weird baud rate setttings. The onyl useable for a normal PC is 9600baud, but 31250 matches exactly the MIDI specifications. And the Atari ST comes with a MIDI port.

Makes debuggin and uploading much much faster.

 

BUT (now comes the bad things):

 

  1. MIDI is using a current loop (5V) while comlynx is level sensitive to 5V. Thus you risk either to damage something or you need some adapter. Nothign special, a simple optocoupler and a few resistors & diodes. Actually, the MIDI specs require that you decouple the MIDI In. PS: Did I mention that, if you "just" connect it by some passive resistors, the polarity of the signal is inverted?
  2. And, you need to set the serial setting to 31250E1, because the lynx expects ALWAYS a parity bit. Very bad, because the MIDI specs are 31250N1. This can be done easily if you have a ST or PC where you can set the port parameters. You just have to remember to do it.

 

Q: Now, if I build me some adapter, could we use MIDI In to connect a Keyboard to comlynx?

A: No. (Reason 2). The Keyboard will send out data withou parity bit. The Lynx will reject the data bytes (even if you disable parity checking!).

A: Yes. If you but some "intelligence" inbetween. A simple microcontroller will do. Or a Laptop.

 

So, You connect the keyboard with a midi adapter to your laptop and use an configurable(!) second adapter to send it out including parity. Or, to make it a bit simpler, you send out the data by a normal serial port with 9600E1 setting, which interfaces directly with a standard serial-comlynx interface.

 

9600 is a bit slow for MIDI, thus the timing is a bit ... inaccurate. But: Its working!

 

 




#3921188 lyxass update

Posted by sage on Wed Dec 27, 2017 3:49 PM

Hi there,

 

you can find a new bugfixed version of lyxass on my website, lyxass v49.

 

Fixes:

* 64 bit and architecture problematic code has been replaced

* some strange things about the parser have been (hopefully) fixed

* few includes have been changed

 

-> works now with 64 bit gcc and clang

 

please report if you find more issues

 




#3920404 What is the sound chip used for atari lynx?

Posted by sage on Tue Dec 26, 2017 11:31 AM

Lynx music really seems to be an area ripe for development. None of the released games, aside from Klax, use music and sfx as an integral part of gameplay and show off MIKEY to its full extent. The music and sfx in Loopz is fabulous, but I cant think of another game that approaches those two...perhaps Toki? Raiden would have been 10x better with in-game music.

Sorry, but playing samples (or mods) does not "show off" anything. Its just boring. The asic is designed for that. you stress memory and cpu (which is no problem in KLAX).

Proper chip music is much much harder.




#3905552 Clearing collision buffer

Posted by sage on Wed Dec 6, 2017 2:20 AM

No, I dont thing this is possible in one step.


  • jum likes this


#3903215 List of stereo games

Posted by sage on Sun Dec 3, 2017 1:43 AM

yes I checked quiet some games for Stereo wen doing the stereo and attenuation sound patch for handy core. But I guess I lost it.

Was quiet easy to check, as I just had to look for each rom in the emulator if the register(s) were accessed.




#3890765 Scrolling with Lynx

Posted by sage on Wed Nov 15, 2017 2:51 AM

no.

the offset "(scroll") registers have influence on all SCBs. but no SCB has position influence on the others




#3868584 Handy sound fix added to any emulator ports?

Posted by sage on Sun Oct 15, 2017 6:15 PM

... actually you can find the latest code on github.

I tried to sync the core between handy, sdlhandy and retroarch (mednafen is skipped because of its unwilligness of accepting patches).

Thanks to LX I could compile handy with VS16, but this version is more beta because the boot replacement is not user-friendly switchable. EEPROM support is only partly available.




#3867217 Handy sound fix added to any emulator ports?

Posted by sage on Fri Oct 13, 2017 9:50 PM

http://atariage.com/...testers-please/

 

retroarch is having the close to latest changes.




#3834302 Flickering Pixel. Bad RAM?

Posted by sage on Fri Aug 25, 2017 6:25 AM

It cannot be a RAM issue if its always the same pixel. The games use typically different screen addresses.




#3829133 LS Upcoming Releases 2017

Posted by sage on Thu Aug 17, 2017 7:15 AM

when I got home I found a nice parcel yesterday ... even so I couldnt remeber that I ordered something ...

 

:))