Table of Contents
Advertisement
PREFACE
• Do not depend on the ability to retain information written into any reserved or
undefined bits.
• When loading a control register, always load the reserved and undefined bits with
values previously retrieved from the same register.
NOTE
Depending upon the values of reserved or undefined bits makes software depen-
dent upon the unspecified manner in which the i860 microprocessor handles
these bits. Depending upon values of reserved or undefined bits risks making
software incompatible with future
processor~
that define usages for these bits.
AVOID ANY SOFTWARE DEPENDENCE UPON THE STATE OF RESERVED
OR UNDEFINED BITS.
v
Advertisement
Table of Contents
