🚀 go-pugleaf

I seem to remember that the CTL Modular 1 had skip instructions (possibly
branch instructions as well). Since I think I've lost my assembler manual, the
following may be inaccurate.

One of the instructions allowed all sorts of tests on the (few) machine
registers; if the test succeeded, the next instruction was skipped.
(Instrcutions were 16 bits long.) *However*, there was a way of extending the
instruction (I think one of the registers pointed at an extension word), in
which case more operations were available, *and* the skip could be 1, 2, or 4
(I think) instructions - a strange hybrid of skip & branch.

Skip instructions are a jolly neat way of making arbitrary instructions
conditional if you can't make arbitrary instructions conditional (as it were).
--

Regards,    "If anything anyone locks, they'll find it all ready in stocks."
Kers.       ----------------------------------------------------------------