Sinclair ZX80 / ZX81 / Z88 Forums

Well the screen splitting and the ASCII font are improvements, aren't they ?
The problem with many "SAVE" routines is the encoding scheme, chosen to save memory in the LOAD/SAVE routines. The Musamy routines in example are both faster and more reliable.

Referring to the manual "We follow ZILOG conventions by allowing you to terminate a statement with a semicolon and then fill up the rest of the line with commentary. Unfortunately the screen can only have 36 characters on a line (32 for the printer) so that by the time you have allowed 16 positions ...

> How hard would it be to recompile AZSMSZMIK to run out of RAM at 8K? Quite hard I imagine. Its relocation could be possible only if the display code is derived by the IX pointed one used by the ROM.. so probably it is not only a matter of relocating it: a replacement compatible display driver shou...

With the Olofsen contribution, z88dk is now Chroma-81 compatible ;) All the improvements will be online soon. zcc +zx81 -subtype=chroma -clib=chroma -create-app -Dspritesize=8 -DBANNERS -DSPECTRUM -O3 wall.c ...powerful, isn't it ? .. would you mind to take a picture of the real hardware in action ?...

On Linux you can also use WINE and run EightyOne.

I forgot to say that the MT version worked at least once:

I'm so glad we undestood each other

I know the picture shift is not optimal; being so difficult to get it centered makes me doubt it is possible at all, but obviously I cannot be sure of it

My fault, I try to suggest few steps, let me know where when things get too hard, I'll give more detail. 1) You need the "command prompt". Put a copy of the ROM file you want to modify in a new folder (in example c:\myroms). 2) use the command prompt and change directory to that folder (cd \myroms) ...

Almost all the Microsoft DOS and Windows operating system versions include the old "debug.exe" program.
My instructions are based on it.

Moggy, I understand that having such a strange result is a good argument... why should the editor be so buggy ?? On the other side it is strange that the same site showing the even the CHIP picture has only the bad ROM images (moving one step backwards). http://k1.spdns.de/Vintage/Sinclair/80/Sincla...