2 Aug
2018
2 Aug
'18
8:07 p.m.
I suspect not, I suspect his first reference is the one you want.
On Thu, Aug 02, 2018 at 09:10:54AM -0400, Ben Greenfield via TUHS wrote:
Is this a weblink to that manual?
I want to read something so well written:)
Ben
https://pdfs.semanticscholar.org/b77f/02dedb784a52229c5376277173c5ef6da5c1.…
> On Aug 2, 2018, at 8:44 AM, Doug McIlroy <doug(a)cs.dartmouth.edu> wrote:
>
> A tangential connection to early Unix experience:
>
> My collection of early computer manuals includes Brinch Hansen's manual
> for the RC 4000, which stands out for its precise description of the
> CPU logic--in Algol 60! It's the only manual I have seen that offers a
> good-to-the-last-bit formal description of the hardware.
>
> DEC presented something of the sort for the PDP-11, but punted where
> the woods got thick. When I wanted to know how they computed the last
> bit of floating-point results, I got no satisfaction. Amidst a thorough
> description of addressing came this formulation of the actual computation:
> "form floating point result".
>
> Doug
--
---
Larry McVoy lm at mcvoy.com http://www.mcvoy.com/lm