I'm asking for help to change the ROM to not test for PAL/NTSC but simply hardcode it for PAL. I've hardcoded the MARGIN read to $37 but unfortunately that is not enough.
Can anyone help where else to change the ROM?
Please help in the thread below:
ZX81, Lambda 8300, Commodore 64, Mac G4 Cube
This could determine if it is lowres or hirescontrol (timer per line).
The jumping text is what I had too when writing lowres too soon (not enough NL) to the screen.