I know that it's possible to remove top and bottom borders in C64 using assembly, and I've found example codes for that. But I can't find any example code for removing the side borders (which was invented by 1001 Crew.)
Anybody know any examples of that?
See my answer to "How do I show sprites in the border on C64" which contains the assembly code to remove the side and bottom/up border together with how it works.