Code
$ff07 : Most similar VIC-reg is $d016.
Bit 0,1,2 : Horizontal smooth-scrolling
Bit 3 : 40/38 columns screen
Bit 4 : Multicolor mode
Bit 5 : TED stop. If set, the TED stops it's counters and
screen-generating, only single clock and refresh
cycles remain.
Bit 6 : PAL/NTSC. 0:PAL, 1:NTSC
Bit 7 : Disable reverse mode. If 0, we got 128 characters
and higmost bit tells if the character should
appear in inverse. If set, no inverse mode but
256 characters.
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