Floating-point processor

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The floating-point processor provides instructions to perform arithmetic, comparison, and other operations.

The POWER® family and PowerPC® floating-point processors have the same register set for nonprivileged instructions. The registers are:

  • Thirty-two 64-bit floating-point registers
  • One 32-bit Floating-Point Status and Control Register (FPSCR)

The floating-point processor provides high-performance execution of floating-point operations. Instructions are provided to perform arithmetic, comparison, and other operations in floating-point registers, and to move floating-point data between storage and the floating-point registers.

PowerPC® and POWER2™ also support conversion operations in floating-point registers.