At 16:02 02/11/96 PST, William Chops Westfield wrote:
>    ;8x51 version 1: 48 bits, 6us [assuming X is R1:R2 and Y is R3:R4]
>      ...
>    ;8x51 version 2: 96 bits, 6us [assuming X and Y are in memory]
>      ...
>
>Not to detract from your conclusions, but aren't you leaving out "effective
>address fetch time" or something?  I have a hard time believing that any
>processor can fetch twice as many bytes in its instruction stream and
>maintain the same execution time...

The examples were for a 8031 running @ 12MHz and a PIC running @ 4MHz. Does
this make your time less hard?