24 Sep
2020
24 Sep
'20
11:19 p.m.
On 9/23/20, Dave Horsfall <dave(a)horsfall.org> wrote:
Turing save us from 1-complement machines!
Or separate-sign numerical representations, for that matter, such as
the IBM 1620 had. And packed decimal on the S/360/370 and the VAX.
Negative zero in packed decimal is responsible for a lot of the
"computerized bill for $0.00" bugs that were rife in the 1960s.
-Paul W.