A P P E N D I X  C

x86 Behavior and Implementation

This appendix discusses x86 and SPARC compatibility issues related to the floating-point units used in x86 based systems.

The hardware is 80386, 80486, and Pentiumtrademark microprocessors from x86 and compatible microprocessors from other manufacturers. While great effort went into compatibility with the SPARC platform, several differences exist.

On x86 based systems: