I'm programming a 128X64 pixel display with a HD61203 (seiko) or similar KS0108 controller. Its a neat little device and I've made code to display both an image "splash" screen, and a real-time moving waveform (sampled from the A/D).
Now I need to implement a simple menu for user selection of different "modes", with a keypad input. I'm relatively new to this.

I think alphanumeric displays enable you to put a character on by just
MOV A,#'H'
but for a graphical display I have to define the bitmap like this:
Text H: Byte 7FH,7FH,08H,08H,7FH,7FH,00H,00H
and scan it on. This seems like a lot of hassle for even a simple menu structure- not even considering the menu navigation and mode-selection process, which I'm still trying to figure out...
Do you know of any code examples from which i can draw inspiration?
Also ANY tips would be greatly appreciated!
Thanks