[Atari Eagle parts library]

On 9/6/2019 at 3:27 AM, jc13 said:

Hello Ivop - if you still have this and it's not too much trouble, I'd like to get a copy of it if you don't mind.  It seems like it may have been attached to the post at one time, but I don't see it anymore.

Since the upgrade of the forum software, all attachments to my blog posts are gone. Have opened an issue on the tracker, so hopefully this will be resolved shortly. If not, I'll look at my backups to find it. Seems my eagle files are not on in my current life homedir anymore

[Atari Eagle parts library]

HI Ivo, is there any reason why the Vcc and Vss pins are missing on all the chips ?

 

They should be there. Probably hidden or automatic pins. Haven't used Eagle in ages as I have long since moved to using KiCad.

[Making you own polyurethane cartridge cases]

Thanks for your interest. It has a hardness of Shore D-70/75 which is pretty sturdy IMHO, but it could be increased up to 85 by adding another component. PU can be colored by either adding a color agent or painting it afterwards. Painting is cheaper, but it probably won't look as good as mixing the color before casting.

[SID Emulation Revisited, Atari SID III]

Superb work here. It's great to hear these tunes coming from an Atari (well, an emulator in my case).

 

I did run the first instance of atarisid on a real atari, but never the second and third (this) version. Today is the first day I heard them coming from a real Atari myself I actually think they sound better than through emulation.

[SID Emulation, siddasm2 and shasm65]

Note to those who want to use my sid-engine to play other tunes: some player routines toggle the gate bit in one frame, which means the conversion routines do NOT see it go to zero and back to one again. This means you have to patch the player at this point too (not just writing to shadow sid registers and possibly relocate the zero page addresses). Every write to sid control registers need to be redirected to a small subroutine that compares the previous value to the new value before writing to the shadow register. If the gate bit gets toggled, you need to reset the ADSR envelope phase of that voice to zero. Examples of such player routines are most songs by David Whitaker, Adam Gilmore and probably a whole lot more

[Atari XL Look-Alike]

interesting find, thanks for sharing!

 

You're welcome Funny thing is, it has no sound on the RF-output. There's a small built-in speaker that beeps.

[Jackpot]

Have you been to the vet with your dog? It doesn't sound normal that he yelps if you pick him up. Could be anything from constipation to an inflamed pancreas or a kidney problem. Hope he gets well soon.