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issmm

Display whether the specified processor is in system management mode.

Syntax

[result =] [[px]] issmm

Where:

[px]

 

is the viewpoint override, including punctuation ( [ ] ), specifying that the viewpoint is temporarily set to processor x of the boundary scan chain.  The processor can be specified as px (where x is the processor ID), or an alias you have defined for a given processor ID.  ALL cannot be used as a viewpoint override.

result

specifies a debug variable to which the function return value is assigned. If result is not specified, the return value is displayed on the next line of the screen.

 

Discussion

Use the issmm control variable to determine if a specific target processor is in system management mode. Entering the command at the command line or in an expression returns 0 for normal mode or 1 for smm.  

Example 1

To display the state of the viewpoint processor:

Command input:

issmm

Result:

FALSE

Example 2

To display the state of processor P3:

Command input:

[P3]issmm

Result:

TRUE

Example 3

To use issmm in an expression:  

Command input:

printf("processor is %s\n", issmm ? "in smm" : "not in smm")

Result:

processor is in smm