CP/M system disks?..... oh, for a format. ;)

[MaV]

I thought these 'special' programs were essentially drivers?

Well, yes, and these. But the format program must be CPC specific (disckit?), and Logo is as well.

I could be wrong, it's been an awfully long time.

[TFM]

Yes, DR. LOGO is *very* CPC specific, since it uses parts of the AMSDOS ROM.
But there are other Format programs (f.e. Discpara(!?) from Vortex), which can manage a whole lot of different CP/M formats. They are usually a bit more quick that DiscKit2/3.

EDIT: If you use Z3Plus or NZCOM as BDOS/CCP replacement, then you can use GFX too. For example Wordstar 4 uses the TCAP so it's closer to WYSIWYG on CP/M systems. There is a nice implementation for CPC too. (What does that mean: Text can be underline, italics, bold and so on... in case of WS4).

[AMSDOS]

Yes I think because CP/M 2.2 is referred to as CP/M-80 in some sense, it's referring to it in the context that it was originally made for Intel 8080 CPUs. I don't think too many of those machines had graphics abilities if any had it at all. Because Z80s became popular with additional instructions and could support the 8080 code, CP/M 2.2 essentially could be worked for it, possibly because of the amount of Public Domain stuff which had been written and since the 464 & 664 only had the 64k, 2.2 was the Operating System if you got a 664 or 464 with DD1 Disc Drive.