Q: Timing: How many clock-cycles to print one char on screen?

[Holger Picker <pickerh@uni-muenster.de>]

Hello,

I've got another (hardware-)question concerning the AppleII: What is the exact timing of the 
6502 (65C02)? I guess there are differences between the NTSC and the PAL-version (well, so 
it was with the CBM 64), and some Apples (especially the AppleIIc) may have had 2 Mhz (or 
more). To put it in a nutshell: How many (processor-)clockcycles does it normally take to 
print one char (textmode) on screen? Or how many cycles will it take to plot one graphic 
byte (= 7 hires pixel) on screen? I could need that as I plan to include emulating of the 
video-bus byte (read $c050 etc as found in e.g. 'Drol'). I also could need precise 
information on the actual amount of video lines (visible and non-visible) for emulating the 
display output. Thanks a lot in advance.

Cheers

Holger