Open source utility to perform WAV->P conversion for ZX81
Re: Open source utility to perform WAV->P conversion for ZX8
I think you mean this document ?
http://problemkaputt.de/zxdocs.htm
http://problemkaputt.de/zxdocs.htm
Re: Open source utility to perform WAV->P conversion for ZX8
Yep, sort of, anyway that's what i wanted. some more info to read up on, saw the Hires mod that i still would like to do, and in my head i had also come to a quick transfer of progs using a small USR routine and i also came to 4 bits at a time and 1 clock bit, but using the IO port i build and a velleman USB interface , hooking it up where 5 bits are send, and echo-ing the opposite of the clock-bit back to indicate a ready to recieve. velleman has 5 digitial in and 8 digital out, but then it could go both ways, and reside in RAMTOP (or partly at least the function calling the function and retrieving it from EXTMEM Anyway i'll want to modify my Ram extension first and start with simple data copy stuff. I won't actually need to store all system variables, hmm i'll experiment until i get something working right. the idea for behind the storing to EXTMEM is actually more to have a quick save before test running a program so as not to lose work in case of a hang-up.
32K SRAM WRX compatible, 32Bit IO-Port, ROM Ghost, ZX-Printer.
Re: Open source utility to perform WAV->P conversion for ZX8
I didn't explain that right i mean sending 1xxxx for msNibble and then waiting for the echo being 0---- and then sending 0xxxx for the lsN and echo will be 1---- i don't know what the speed will come to, but for sure it's quicker then tape, and i have a velleman USB and experience in using it. and i don't think the timing can really go wrong either way (eg i understood that clock-bit thing, but what if the receiver isn't ready yet ? i actually used a velleman to create a flip-flop chain with 72 data-bits 6-bit at a time, something between a byte and a nibble, i called it a bibble but a nyte could also be a word, 1 clock-bit and a reset-bit.)
I noticed in a USR routine (i think it was a RENUM routine that the routine called a routines from ROM (3751 a 2520) i might want to call some of the standard zx81 basic code, Just to perform a NEW could be nice somehow for instance. There probably is a document describing the whole ROM isn't there ?
I noticed in a USR routine (i think it was a RENUM routine that the routine called a routines from ROM (3751 a 2520) i might want to call some of the standard zx81 basic code, Just to perform a NEW could be nice somehow for instance. There probably is a document describing the whole ROM isn't there ?
32K SRAM WRX compatible, 32Bit IO-Port, ROM Ghost, ZX-Printer.
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Re: Open source utility to perform WAV->P conversion for ZX8
Do you mean this?
Complete Timex TS1000/Sinclair ZX81 ROM Disassembly, The
See here
But don't bother trying to down load the book from World of Spectrum, as parts of the site are being reconstructed like the books section.
Instead Download it from this mirror:
http://wos.meulie.net/pub/sinclair/book ... blyThe.pdf
http://wos.meulie.net/pub/sinclair/book ... blyThe.zip
There is also Geoff Wearmouth's site http://www.wearmouth.demon.co.uk which includes ZX Spectrum and ZX81 disassemblies.
Mark
Complete Timex TS1000/Sinclair ZX81 ROM Disassembly, The
See here
But don't bother trying to down load the book from World of Spectrum, as parts of the site are being reconstructed like the books section.
Instead Download it from this mirror:
http://wos.meulie.net/pub/sinclair/book ... blyThe.pdf
http://wos.meulie.net/pub/sinclair/book ... blyThe.zip
There is also Geoff Wearmouth's site http://www.wearmouth.demon.co.uk which includes ZX Spectrum and ZX81 disassemblies.
Mark
ZX81 Variations
ZX81 Chip Pin-outs
ZX81 Video Transistor Buffer Amp
Standby alert ![Exclamation :!:](./images/smilies/icon_exclaim.gif)
There are four lights!
Step up to red alert. Sir, are you absolutely sure? It does mean changing the bulb
Looking forward to summer later in the year.
ZX81 Chip Pin-outs
ZX81 Video Transistor Buffer Amp
![Exclamation :!:](./images/smilies/icon_exclaim.gif)
![Exclamation :!:](./images/smilies/icon_exclaim.gif)
There are four lights!
Step up to red alert. Sir, are you absolutely sure? It does mean changing the bulb
![Exclamation :!:](./images/smilies/icon_exclaim.gif)
Looking forward to summer later in the year.
Re: Open source utility to perform WAV->P conversion for ZX8
Yeah pretty much that's it. Wow i have so much documentation now that i'll reading for a bit.
32K SRAM WRX compatible, 32Bit IO-Port, ROM Ghost, ZX-Printer.
Re: Open source utility to perform WAV->P conversion for ZX8
Perhaps it is this one ?
https://web.archive.org/web/20081021130 ... zxdocs.txt
Archive.org is magic, you can shift later in time and see if there's another file you need or browse and see what else was published in 2008![Wink ;)](./images/smilies/icon_e_wink.gif)
About this tool: I totally missed it ! It is absolutely worth to try, I extensively used the Mathias' tool but it is not for beginners![Smile :)](./images/smilies/icon_e_smile.gif)
https://web.archive.org/web/20081021130 ... zxdocs.txt
Archive.org is magic, you can shift later in time and see if there's another file you need or browse and see what else was published in 2008
![Wink ;)](./images/smilies/icon_e_wink.gif)
About this tool: I totally missed it ! It is absolutely worth to try, I extensively used the Mathias' tool but it is not for beginners
![Smile :)](./images/smilies/icon_e_smile.gif)
Re: Open source utility to perform WAV->P conversion for ZX8
that is actually the same document as in Pokemon's link, but in a txt format. i'll switch back to the other thread for the HiRes RAM Mod.
32K SRAM WRX compatible, 32Bit IO-Port, ROM Ghost, ZX-Printer.
Re: Open source utility to perform WAV->P conversion for ZX81
Hello,mcleod_ideafix wrote: ↑Tue Aug 06, 2013 12:28 pm
The last version is available at the following address:
http://www.zxprojects.com/images/storie ... 1putil.zip
I try to save an old zx81 game.
I could retreive Argolath (a zx81 french game) but now, I have an old tape with another game but I see a lot of noise/bleed. The ZX81 tape converter bug when I save some bit correction.
Do your soft is still available ? The link is broken.
Thank you for your help !!
Re: Open source utility to perform WAV->P conversion for ZX81
Yup,, links are gone does anyone have a copy of this?
Ernesto
ZX80 USA, ZX81UK, ZX Spectrum, ZX Spectrum+, ZX Spectrum 128+ UK, ZX Spectrum +2/A, Sinclair QL, CZ1000, CZ1500, CZ2000, CZ1000Plus, CZ1500Plus, CZ Spectrum, CZ Spectrum Plus, TK83, TK85, TK90X, TK95. TS2068. And more to come![Very Happy :D](./images/smilies/icon_e_biggrin.gif)
ZX80 USA, ZX81UK, ZX Spectrum, ZX Spectrum+, ZX Spectrum 128+ UK, ZX Spectrum +2/A, Sinclair QL, CZ1000, CZ1500, CZ2000, CZ1000Plus, CZ1500Plus, CZ Spectrum, CZ Spectrum Plus, TK83, TK85, TK90X, TK95. TS2068. And more to come
![Very Happy :D](./images/smilies/icon_e_biggrin.gif)