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Instruction set reference, a-m – Intel 253666-024US User Manual

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3-172 Vol. 2A

CPUID—CPU Identification

INSTRUCTION SET REFERENCE, A-M

Figure 3-6. Feature Information Returned in the ECX Register

OM16524b

CNXT-ID — L1 Context ID

0

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ECX

TM2 — Thermal Monitor 2
EST — Enhanced Intel SpeedStep® Technology

DS-CPL — CPL Qualified Debug Store

MONITOR — MONITOR/MWAIT
SSE3 — SSE3 Extensions

Reserved

CMPXCHG16B

SMX — Safer Mode Extensions

xTPR Update Control

SSSE3 — SSSE3 Extensions

PDCM — Perf/Debug Capability MSR

VMX — Virtual Machine Extensions

SSE4.1

POPCNT
SSE4.2

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