FPU

ロボコン後輩から電話。←↓そんなもの買わないってば（笑）けど、面白そうなので記述。

http://www.sparkfun.com/shop/index.php?shop=1&itemid=289

Description: The uM-FPU by Micromega easily interfaces with most microcontrollers to provide support for 32-bit IEEE 754 compatible floating point and long integer operations. The microcontroller communicates with the uM-FPU using a 2-wire or 3-wire SPI compatible interface. The 8-pin uM-FPU uses an internal oscillator and requires no external components.

Interface examples are available for BASIC Stamp, Javelin, PICAXE, and 16F87x.

そういえば、昔、80286の隣に80287を刺したよなぁ。Cylixのやつは速いとか、違ったっけか？（笑）