At 12:55 AM 2/27/2004 +0100, you wrote:
>At 18.45 26/02/2004 -0500, you wrote:
> >On Thu, 26 Feb 2004, Alan B. Pearce wrote:
> >
> >> And then in the MAXQ strengths, they list "prefixable opcode allows a
> simple
> >> means for instruction set extensions or enhancements". Anyone recall the
> >> 8086 with the FPU and 8089 enhancements to the instruction set?
> >
> >Gads, you mean there is someone besides me who even REMEMBERS the 8089?
>
>Wasn't the 8089 an I/O chip?

The i8087 was the math co-processor for the 8086/8.

IIRC, the 80486DX (not the 80486SX) was the first Intel PC processor with
the math co-processor on-chip.

Those were the days. NOT.

Best regards,

Spehro Pefhany --"it's the network..."            "The Journey is the reward"
speff@interlog.com             Info for manufacturers: http://www.trexon.com
Embedded software/hardware/analog  Info for designers:  http://www.speff.com

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