On 8/22/15 2:23 PM, Sean Conner wrote:
For my own morbid curiosity, and because it came up on another mailing list I'm on [1], what machines commercially avaialble were sign magnitude and one's complement?
A table of what computers had what numeric representation is one of those things that should have been done, but never has. Now that bitsavers has a reasonable collection of technical/programming manuals, it might even be possible. http://quadibloc.com/comp/cpint.htm has some information, but it isn't really in any sort of tabular form. AFAIK, the PDP-1 was the only DEC 1's compliment machine that shipped. I had also heard that 1's compliment never caught on in short word length machines because of the difficulty dealing with multi-word arithmetic.