RTEMS 4.8.1 On-Line Library

Intel/AMD x86 Specific Information Floating Point Unit

RTEMS CPU Architecture Supplement

3.1.3: Floating Point Unit

The macro I386_HAS_FPU is set to 1 to indicate that this CPU model has a hardware floating point unit and 0 otherwise. The hardware floating point may be on-chip (as in the case of an i486DX or Pentium) or as a coprocessor (as in the case of an i386/i387 combination).

RTEMS CPU Architecture Supplement