Renesas SH7058 User Manual download pdf (Page 201)

3.9 Analyzing Performance

Use the performance analysis function to measure the rate of execution time. The performance analysis function

does not affect the realtime operation because it measures the rate of execution time in the specified range by

using the circuit for measurement of hardware performance included in the emulator.

Select one of the following five modes according to the purpose of measurement.

Table 3.1 Available Measurement Modes

Mode Description Purpose

Time Of Specified Range

Measurement

Measures the execution time and

execution count in the specified

range.

Measurement of time taken for

processing of functions except for

that required for child functions

called from the functions.

Start Point To End Point

Measurement

Measures the execution time and

execution count between the

specified addresses.

Measurement of time taken for

processing of functions.

Start Range To End

Range Measurement

Measures the execution time

from a specified range to another

specified range.

Measurement of execution time

spent from calling of any of

sequential subroutines to calling of

any of other sequential subroutines

in a program that includes

subroutines in sequence, such as

an assembly program.

Access Count Of

Specified Range

Measurement

Measures the number of times a

specified range is accessed from

another specified range.

Measurement of the number of

times a global variable is accessed

from a specific function.

Called Count Of

Specified Range

Measurement

Measures the number of times a

specified range has called

another specified range.

Measurement of the number of

times a function is called from a

specific function.

Use eight performance channels installed on the circuit for measurement of hardware performance in the

emulator for setting of conditions for measurement. Up to eight points can be set.

Note, however, that up to four points can be set in Start Range To End Range Measurement, Access Count Of

Specified Range Measurement, or Called Count Of Specified Range Measurement because two sequential points

are used for setting a condition in these modes.

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Renesas SH7058 User Manual Page 201

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