Standard C mathematical functions

I don't know anything about uVision2 for C166, but this is the link to the current manual for the C166 compiler.

http://www.keil.com/support/man/docs/c166/c166_library.htm

floor() is represented, as you can see.

But you should always think twice before using floating point numbers in microcontrollers. Few microcontrollers have hardware support for floating point, so the processor has to work hard to perform the calculations.

A lot of problems can be handled with fixed-point integer arithmetic.

I don't know anything about uVision2 for C166, but this is the link to the current manual for the C166 compiler.

http://www.keil.com/support/man/docs/c166/c166_library.htm

floor() is represented, as you can see.

But you should always think twice before using floating point numbers in microcontrollers. Few microcontrollers have hardware support for floating point, so the processor has to work hard to perform the calculations.

A lot of problems can be handled with fixed-point integer arithmetic.