30481, 7711H - Start of LCD character generator shape table. Five bytes
per char for
the first 128 characters. 6 bytes per char for characters 128-255.
On Sun, Sep 25, 2022 at 1:55 PM Will Senn <[email protected]> wrote:
> All,
>
> This is my first post, but hopefully not my last.
>
> I originally had an M100 in 1984 that I hocked for $50 bucks at a local
> pawn shop for food money in my freshman year. I never went back (I didn't
> get the $50 plus interest for ages). Now, it's 38 years later and I'm
> finally getting it out of hock (so to speak). I remember writing a basic
> program that read the character bitmaps out of ROM (at least that's how I
> remember it) and used the bitmap as a basis for a banner in the same font.
> I think I'd like my first program on my new/old M100 to be a banner program
> and so I'm digging around looking for where, in ROM, the character bitmaps
> are stored. I've looked here, there, and everywhere to no avail. Is there a
> set of bitmaps stored in ROM, and if so where?
>
> If I remember correctly, each character was represented as a set of 8
> (maybe 7) 6 (maybe 5) bit binary numbers:
>
> 001000
> 010100
> 100010
> 100010
> 111110
> 100010
> 100010
> 000000
>
> or somesuch for A...
> resulting in something like:
>
> 1
> 1 1
> 1 1
> 1 1
> 11111
> 1 1
> 1 1
>
> being displayed. The zeros on the bottom and right may be on the top or
> left, or not there at all, but there are spaces between and below
> characters, either in the bitmap or added by the display functions.
>
> Thanks!
>
> Will
>
>
>
