Amstrad CP/M Plus character set

The [CPM/PLUS character set was used with the CPM/PLUS operating system, for instance on the Amstrad Spectrum +3. It was a variant of ASCII that assigned graphical renditions to the entire 8-bit character code space from 0 to 255, including control characters, though such controls (e.g., the C0 controls) were also used as control characters, which could make it hard to type them when you're intending to use them in their graphical form.

Various accented characters, mathematical symbols, and Greek letters were included, as well as line-graphics characters (which were in the C1 controls range).

Links

 * Character chart