Scaling
The above program also sets the scaling value to 50, which is still a pretty small scaling value. Vectrex achieves scaling with a timer. The time for how long a vector is drawn (or just positioned) is the scale value. Thus (as also mentioned befor) using high scale factors result in a 'waste' of time. The scaling factor is set by loading the value directly to the timer of the VIA 6522 chip, namely register VIA_t1_cnt_lo ($D004). Below you can find some functions that will set the scaling value while (befor) postioning the vectorbeam (further below).