Re: Early-2014 Macbook Air and Linux Mint Cinnamon
John Ames <[email protected]>
| Newsgroups | comp.sys.mac.vintage,comp.os.linux.misc |
|---|---|
| Organization | A place where nothing fits quite right |
| Message-ID | <[email protected]> |
On Wed, 24 Jun 2026 19:42:20 GMT Charlie Gibbs <[email protected]> wrote: > I figured that if they were going to do that, they might as well go > whole hog and have constructs like LD PC,<addr> for a jump, and LD > A,@<portnum> for input (LD @<portnum>,A for output, of course). MOV [operand], PC is actually a valid if non-conventional form of jump on the PDP-11; the primary difference is that it sets the flags based on the value of the target address. And, of course, it has memory- mapped I/O, so MOV Rn, [port]/MOV [port], Rn is indeed how it's done ;)