What is the alternate PIC format?
Some Microchip PIC assemblers and compilers use an alternate 32-bit format for storing floating point numbers. PIC. The mantissa, exponent, and sign are stored as follows: The uM-FPU can be set to always read and write PIC format numbers by setting a bit in the mode byte, or the PICMODE and IEEEMODE instructions can be used to switch modes as required.