3 ms·
> One nibble for the foreground colour, one for background. No, 3 bits for foreground, 3 bits for background, 1 bit for extra brightness and 1 bit for blink (s
by silvestrov 12y ago
> One nibble for the foreground colour, one for background.
No, 3 bits for foreground, 3 bits for background, 1 bit for extra brightness and 1 bit for blink (swaps bg/fg every second).
- midnightclubbed 12y agoOops sorry, I remembered the brightness bit but forgot it was for both colors at the same time. Ahhh yes and the flash bit :) thanks. The final piece of the video output was the border color (on one of the out ports of the z80). By syncing with the vertical retrace you could 'draw' into the border (most tape loading routines changed the border color as bits were read from the tape to give the familiar border stripes when games loaded from tape).