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On Jul 3, 2006, at 4:17 PM, William D Clinger wrote:
Brad Lucier wrote:I presume you're talking about '387 style arithmetic with 80-bit extended real registers. This architecture has no single-precision or double-precision operations at all, all operations act on extended- precision (80-bit) values in extended-precision registers; so it has *no* "implementation of double precision arithmetic". The '387 is a correct implementation of IEEE 754 arithmetic,I presume you mean IEEE 854 arithmetic.
754 is for binary arithmetic; 854 is for other bases (typically decimal).