Author: Chris Wilkson (STROBE.MIT.EDU)
Date: 10-22-1999 16:03
This is a normal thing and is due to a hardware bug in the TIA chip. Any time
you write to the HMOVE registers, you get
an 8(?)-pixel blank at the beginning of
the scanline. I don't know the particulars
that well, but the basic answer is that it's
normal.