Tony Duell wrote:
I've only used (6809) flex briefly, on an Acorn System of all things, but I
don't remember it as being very unix-like. I remember it as being
single-tasking with no I/O ridirection, pipes, or anything like that.
OS-9 was much more like '6809 unix' (to the user, internally it's very
different!)
-tony
Yes, having seen OS-9 briefly, too: behaviour was very predictable with a
bit of Unix knowledge, but, for example, implementing an "echo" command
needed something like four machine instructions.
Andreas