Does anyone recognize this chip or manufacturer logo? This chip is believed to be a circa 1990 25 MHz 386DX but the markings are a mystery. The marking at the corner looks familiar (
:C I think it's a manufacturer logo) but I can't place it. Can anyone suggest what manufacturer or specific chip this is?
DS was a prefix used by Dallas Semiconductor but the font doesn't seem right for their chips.
For context, the chip is on the board asked about in this question on retrocomputing.se.