[fuse-emulator-devel] bug in ZX Printer emulation?

[Cygnus <cy...@po...>]

Hello, I am working on new version of old text editor. Small part of 
this editor is subroutine for printing on ZX Printer. And i found it 
doesn't print last pixels. One last pixel on every pixel line is missing.

Of course i suspected code from text editor first, but it only copies 
one text line from screen to the ZX Printer buffer on address 23296 and 
then it is calling subroutine in ZX ROM at 3789 (0xecd).

And BASIC command COPY behaves very similarly, last pixels are mostly 
missing. So it is definitely error in ROM or in ZX Printer emulation.

Interestingly with command COPY are not missing all last pixels, i have 
no idea why, but result is still not correct.

See screenshots - all black pixels are correct, missing pixels are red, 
which i added in Gimp to be clear what is wrong.


Cygnus