> Of course, rather than expose him to 8088 assembler, I’d recommend > you run right out and grab a used TRS-80 Color Computer - cheap, > and 6809 assembly is very very nice - no segment registers.
> The downside of *that* is that if he ever decides to use the “Sign Extend” > instruction, you’ll have to have a talk with him about the birds, the bees, > and where little subroutines come from :-). I suspect you'll need some 'support' when you come to unconditional relative branches too :-) -tony