Hi-speed loadings for zx81

[yerzmyey]

Probably so, but regular convertor would be OK. I don't get this whole idea of making "projects", like in AVI convertors.
And I just wanna make WAV from P, nothing more.
K7ZX was a brilliant util. Easy to use.
Inlike this one.

[gus]

Hi decicoder (Francisco ?)

I try to convert my version of The Crystal Frog to O.T.L.A. format and It works very fine on the EO emulator.
This Weekend I will try it on the real hardware and the I will share here the results

Thanks for your really great work !!!

Gus

P.D. I choose 16K Model but in reality my game es for 32K configuration, nothing to say It works !!!

[gus]

Hi to All

This Saturday I connect my Timex Sinclair 1500 and try to high speed load some programs with the O.T.L.A. but I do not have good results... in fact I can't load any program...
The I try the Adjust Test Tool, I saw the numbers but I can't make the second number of the first row close to zero, in fact if I change minimally the volume the number changes a lot (from -127 to 53 by example)...
I do test witha volume thta let me load on the first try any program on normal speed.
I asking for some tricks if anyone have better luck.
The O.T.L.A. looks very very interesting to me, so I like to make it work next time I will try with a TK85, because I know that Kelly (an brasilian TK fan) use it with very good results...

Gus

[XavSnap]

Hi Gus,

You may had to put a sound ampliphier beatween the computer and the Zx81 input.
(like a ampliphied-speeker)
The screen must become black, and little withe lines had to be displayed on the screen.
And DON'T FORGET TO REINIT THE 48k RAM PACK BEFORE LOADING THE OTLA HEADER !


Note: What about the Xur Wav ... ( avoid to use mp3 format !)
Have Fun...

[XavSnap]

Hi,

In VB81 XuR, just type SAVE"myprog.FL"

More Fast-Load infos:
Fr:

http://zx81.ordi5.free.fr/fastload/

En:

http://translate.google.fr/translate?hl ... /fastload/

[Andy Rea]

Well i'll be blowed if i can get it to work on a real zeddy

work on eightyone, but i've spent about 4 hours messing around trying this trying that, even with the tool to set volume i was consistantly getting between -8 + 8 but still no go when trying to load programs for real.

Oh hum... just as well i have ZXpand

Andy

[zx80nut]

Hi.
I hope it can work, but I am a bit confused as to how it would work.
It appears from the web page that two levels of signal are generated. However, the ZX80/81 can only handle a single trigger threshold voltage (that is, the "TTL" threshold), so anything below it would be ignored.

Any ideas?

Grant.

[Andy Rea]

Oh i read it like it was a phase difference thing, and since a phase polarity (which i tried both ways round) seems to be important too i'm going with that.

however i fear that if is is possible, reliably then it would have been thought of and used by the big software companies back in the hay day.

Andy.

maybe 7.5kbs is a bit ambitious, 3kbs would be a tenfold improvement over the original.

what computer system of days gone by had the quickest default loading speeds anyway ?

Andy

[Prime]

what computer system of days gone by had the quickest default loading speeds anyway ?

I think most of them where arounf 1200bps, ciatainly the Dragon / CoCo and the Beeb / Master / Electron.

The slowcoaches of course where the ZX80/81, the Acorn Atom and the Commodore Vic 20 / 64 all of which IIRC where around 300bps.

Of course with only 16K of memory 300bps is not too bad, but I remember the C64 version of manic miner taking something like 20 minutes to load.....

Cheers.

Phill.

[siggi]

however i fear that if is is possible, reliably then it would have been thought of and used by the big software companies back in the hay day.

There WERE reliable fast loader programs, e. g. SUPERTAPE, which war made for several computers (ZX81, Speccy, C64, VC20, ORIC, ..). The ZX81 version is there:http://tlienhard.com/zx81/supertape.pdf

I used SUPERTAPE for several years to load my games

See also : viewtopic.php?p=900

Siggi