On Sun, 22 Jun 2025 07:11:53 -0700 Michael Stein <[email protected]> wrote:
:>On Sat, Jun 21, 2025 at 11:29:52PM -0700, Leonard D Woren wrote: :>> Note however that the only opcode more or less guaranteed to be invalid :>> forever, per PoP, is x'00'. > :>> /Leonard :>I like: :> EX 0,* :>Which causes an 0C3 execute exception. An 0C1 might be a bug :>but an 0C3 is most likely a "this should never happen". I prefer a branch to an odd address (0C6) which has the advantage of not having to branch around the trap. And the BEAR tells you the location of the trap. -- Binyamin Dissen <[email protected]> http://www.dissensoftware.com Director, Dissen Software, Bar & Grill - Israel ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
