In several parts of the wiki, it states that the screen is 63 by 95 pixels. Actually, it is 64 by 96.
I'm don't remember exactly what the phrasing was, but I think he meant 0-63 and 0-95, which would be 64 and 96 pixels respectively. The first pixel is accessed as (0,0) with commands such as Pxl-On(. If I'm wrong, feel free to go and edit it.
This is Valros.
Yes I see that this is an old topic but the screen IS 95 by 63 pixels. 96 by 64 including the unusable bottom row and left column.
Actually, the rightmost column is less unusable than the bottom row. StorePic and RecallPic do use it (except for the run indicator portion of it), it's just that if it's always blank, they have nothing to work with. If those pixels happened somehow to be set (which can only be done using assembly, of course), they would be able to save and recall that.
The bottom row, on the other hand, they ignore entirely.
Sorry, it was a typo, meant the unusable very right column, not the usable very left column.