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INSTRUCTION SET REFERENCE
RDPMCRead Performance-Monitoring Counters (Continued)
Flags Affected
None.
Protected Mode Exceptions
#GP(0)
If the current privilege level is not 0 and the PCE flag in the CR4 register
is clear.
If the value in the ECX register is not 0 or 1.
Real-Address Mode Exceptions
#GP
If the PCE flag in the CR4 register is clear.
If the value in the ECX register is not 0 or 1.
Virtual-8086 Mode Exceptions
#GP(0)
If the PCE flag in the CR4 register is clear.
If the value in the ECX register is not 0 or 1.
