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Messages - utz

#136
Quite sure it was crap back then, but it has come a long way. It's just still quite difficult to use, and documentation is not always very helpful. E.g. those 5kb that Cumred mentioned are probably due to the fact that z88dk normally includes a platform-specific kernal, but that behaviour can be switched off. Somehow.
#137
Well, 4 channels is very well possible on 6 MHz, so a 15 MHz machine should definately be able to do more. Register availability eventually will become a more serious bottleneck than CPU speed, but 6-8 channels should nevertheless be doable.

Regarding the missing link port, If I interpret Brandonw's twitter remarks correctly, the linkport is technically still there, it's just not wired out anymore. So in theory one could be build in, but I doubt many people are going to do that.

Also I recently posted some thought about USB sound on Cemetech, but nobody really responded :o So I'll copy it here, maybe someone wants to follow up on the idea.

Quote
Had some thoughts on how to get sound out of the 84+ CE. I'm not going to try and implement it myself since I don't have a CE and there is no point in getting one for me either, but I thought I'd share the idea anyway.

Well, as you know we can't use the analogue link port anymore :( But what we can use is the D- line of the USB. So the first step is to make an USB -> sound adapter.
Basically you'd just need to connect pin 2 (white line) to the tip of a mono jack, and connect pin 4 (black) to the ground. Perhaps it'd need some extra resistors/caps/whatever though, who knows.

Now for the software side. First, one should probably power off the USB. Now to make sound, you can use the usual link port tricks, alas only in mono (but with 2 volume levels). Instead of using the link port however, you'd toggle bits 3 and 4 of port 0x4A. Right?

DISCLAIMER: It's just an idea, and my knowledge of both USB stuff and electronics is very limited. So unless you feel like blowing up your brand new CE, don't try this at home folks ;)
#138
Weeeeell... have I considered it? Yes, certainly. Am I going to get around to doing it? Probably not in the near future. I mean right now I'm busy with a big project for 6 MHz, and after that I want to take a good look at my newly obtained 92+. Also, I still don't own a 15 MHz model. But generally speaking I'm definately interested in write a driver specifically for 15 MHz, as it should allow for some amazing tricks. Current drivers are nowhere near pushing the limits.
#139
Hardware / Re: CBS6000 - an 8-bit 6510 computer
July 01, 2015, 11:21:02 PM
Good to see you're still going strong with this project! I'll hope to see the machine in real life action one day ;)
#140
Thanks again for the warm welcome everyone, and thanks DJ_O for explaining stuff ;)
#141
Thanks you guys!
Although I'm starting to feel a bit like joining one of those Anonymous groups... Hello, my name is utz and I'm a calcoholic :P
#142
As the thread title says. Was wondering if anybody has any documentation on the 200C040 ASIC found in the 89/92+/V200? What does it do? Does it expand the 68k into a 68040? Can it be programmend/exploited, and if so, how?
#143
Wow, this is slick! I'll give it a whirl on my newly obtained TI-92+ when I find some free time. Also, glad to see that the rumours about the 68k scene dying out aren't quite true ;)
#144
@DJ Omnimaga Woah, you'll have to get me up to date about those "changes" one day. Yeah, the bandcamp is fairly new, created it for the release of my beeper album last year. Anyway, glad to hear you enjoy my music... yours rulez, too!

@Eiyeron Yep, that'd be me ;)

@Cumred_Snektron thanks ;)
#145
Quote from: Cumred_Snektron on June 22, 2015, 09:03:21 PM
Quote from: Ivoah on June 21, 2015, 05:09:23 PM
Quote from: Cumred_Snektron on June 21, 2015, 04:16:44 PMAlso C support? Officially or a ez80 c compiler like SDCC/KCC/z88dk?

Zilog (the creators of the z80 and ez80) have an official C compiler targeting the ez80

Thats awesome O.O
* Cumred_Snektron wants CE more now
Shame they didnt make one for z80 though :P

Well, Zilog didn't make one, but you can always use z88dk ;)

Speaking of calculator collection, I don't have a picture of mine... But, I recently got my first 68k model, woohoo! A TI92+ it is. What a huge clunker!
#146
Ohai... so this is where everybody has been hanging out :p

Ermmm... well... I'm utz. I make 1bit/chip/calculator music, run a blog about oldskool computer art, and occasionally code some asm stuff for TI calcs, mainly older models.
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