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That's interesting. I specifically remember buying a math coprocessor for my AMD 386DX-40. My motherboard definitely had the slot for a dedicated co-processor
by ChrisClark 3y ago
That's interesting. I specifically remember buying a math coprocessor for my AMD 386DX-40. My motherboard definitely had the slot for a dedicated co-processor though, maybe that was the difference.
- mrighele 3y agoI was a kid listening to "grown-up talking" so I could remember the wrong reason for the funny pairing, or maybe I'm getting old :-) (it's been 30+ years). English Wikipedia isn't very helpful on the regard but I found a page in German [1] that lists a number of 387DX-compatible chips running at 40MHz, so maybe it was just a matter of price, local availability, or lack of trust in the brands. [1] https://de.wikipedia.org/wiki/Liste_der_x86er-Koprozessoren https://de.wikipedia.org/wiki/Liste_der_x86er-Koprozessoren
- yuhong 3y agoAFAIK while AMD didn't produce the 387 there was alternatives from for example Cyrix and IIT at the time.
- lproven 3y agoAnd the socket-compatible, better-than-the-original Weitek 3167. http://www.weitek.com/textual/products/wtl3167.html http://www.weitek.com/textual/products/wtl3167.html