Sinclair ZX80 / ZX81 / Z88 Forums

If you have a ZXpand, you can load the software with LOAD “SOFTWARE STOP ”, where STOP is a keyword. ZXpand emulation is available on EightyOne as well. If you have real hardware with tape loading, I’ve read you can load with RAND USR 836 to stop auto-run. (This I’ve never tried myself.) mrtinb, Th...

Hi,
ZX software that auto-runs, after loading, has more of a chance to fail.
Q: Can auto-run code be unlocked in some way, so only the binary gets installed without it being launched
b

Merge 32kb version (only 20kb Basic memory available): Ram_Top @ 49999 TODO: Move the Ram_Top : POKE 16388,200 POKE 16389,175 NEW LOAD "MERGE32" LOAD the Program#1. RAND USR 45030 LOAD the Program#2 RAND USR 45000 Type LIST. [Tested on EO] Merge32.TZX MERGE32.P XavSnap, What I've noticed, one EO ve...

dessony wrote: ↑Wed Jul 03, 2019 7:13 am Does this device use an 8255 IC?

DesSony

dessony,
Yes, and here is the schematic to see how the hardware is wired . . .
b

Here it is with SHREB version 3. I haven't actually tried to figure out how the use the program, but the screen shot shows that SHREB version 3 is working. Regards; Greg Greg, It appears that the P file format is very unstable when the file exceeds 16K. Here is an example where EO can generate only...

XavSnap wrote: ↑Wed Jul 03, 2019 6:42 pm
But,

Seriously, i plan to build a real 32k program in Basic (19900bytes).
In Vb81, the program seem working…
But, on EO… No way.

XavSnap,
EO referenced my attached schematic, I designed from scratch, during its build and can perhaps give you some work-in-process tips.
Best Wishes
b

RE: v1.30.3; Wine
Hi,
The broken features I've noticed:
1. Cannot generate a compatible P file.

2. Wav SAVE file never gets created, but appears to do so.

3. Cannot LOAD an EO WAV file.

4. With 64K RamPak setting, POKE 16388,255; POKE 16389,255; NEW, hangs emulator.

Wishing you a happy day
b

Here it is with SHREB version 3. I haven't actually tried to figure out how the use the program, but the screen shot shows that SHREB version 3 is working. Regards; Greg Greg, Please let us know when you figure out how to use Tom's SE, but 1st, splash screen gets generated, then HANGs w/key press. ...

Hi,
Attached the docs of a ZX81/TS1000 EPROM I/O programmer port, that I was able to interface to a PC.
I'd be interested in any comments . . .
b

Horizontal coords are based on byte positions while vertical coords are based on pixel rows. The max horizontal pixel coord is 255. More info about SHREB can be found here... https://sinclairzxworld.com/viewtopic.php?f=10&t=1441&p=15136&hilit=shreb#p15136 Regards; Greg Greg, Attached a searchable v...