Specification Update

Summary Tables of Changes
24 Specification Update
Steppings
NO.
B-1 CPU
Signature
= 06D6h
C-0 CPU
Signature
= 06D8h
B-1 CPU
Signature
= 0695h
C-0 CPU
Signature
= 06E8h
D-0 CPU
Signature
= 06ECh
B-2 CPU
Signature
= 06F6h
A-1 CPU
Signature
= 10661h
Plans
ERRATA
W114 X X No Fix
Upper 32 Bits of the FPU
Data (Operand) Pointer in
the FXSAVE Memory
Image May Be
Unexpectedly All 1's after
FXSAVE
W115 X X No Fix
Performance Monitor
IDLE_DURING_DIV (18h)
Count May Not be
Accurate
W116 X X No Fix
SYSCALL Immediately
after Changing EFLAGS.TF
May Not Behave According
to the New EFLAGS.TF
W117 X X No Fix
IA32_FMASK is Reset
during an INIT
W118 X X No Fix
IO_SMI Indication in
SMRAM State Save Area
May Be Set Incorrectly
W119 X X No Fix
LBR, BTS, BTM May
Report a Wrong Address
when an
Exception/Interrupt
Occurs in 64-bit Mode
W120 X X No Fix
A Thermal Interrupt is Not
Generated when the
Current Temperature is
Invalid
W121 X X No Fix
CMPSB, LODSB, or SCASB
in 64-bit Mode with Count
Greater or Equal to 248
May Terminate Early
W122 X X No Fix
Returning to Real Mode
from SMM with
EFLAGS.VM Set May
Result in Unpredictable
System Behavior
W123 X X No Fix
IRET under Certain
Conditions May Cause an
Unexpected Alignment
Check Exception
W124 X X No Fix
CPL-Qualified BTS May
Report Incorrect Branch-
From Instruction Address