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PRE RUN N ON THE FLY
There are two ways to generate data:
1.Pre-run generation
2.On-the-fly generation
Pre-Run Generation
-Specman Elite solves the constraints for each field under sys and randomly generates values for them when the â~@~XTestâ~@~Y command is issued.
-Pre-run generation is automatic for every struct and unit whose instance is under sys.
-Structs and units generated in this way are static in nature.
-User can also suppress pre-run generation using â~@~\!â~@~] (do not generate)
-Advantage: Quickly shows what the generator will produce
On-The-Fly Generation
-Is activated explicitly using gen action.
-Can be used to generate fields or method variables.
-Saves memory when generated structs are disposable.
-Is recommended for generating stimulus data structs.
-Cannot be used to generate units.
-On-the-fly generation is done with the gen action, which can be called from methods or TCMs. gen expression [keeping {constraint-block}];
-Lets the generator react to the DUT current state
There are two ways to generate data:
1.Pre-run generation
2.On-the-fly generation
Pre-Run Generation
-Specman Elite solves the constraints for each field under sys and randomly generates values for them when the â~@~XTestâ~@~Y command is issued.
-Pre-run generation is automatic for every struct and unit whose instance is under sys.
-Structs and units generated in this way are static in nature.
-User can also suppress pre-run generation using â~@~\!â~@~] (do not generate)
-Advantage: Quickly shows what the generator will produce
On-The-Fly Generation
-Is activated explicitly using gen action.
-Can be used to generate fields or method variables.
-Saves memory when generated structs are disposable.
-Is recommended for generating stimulus data structs.
-Cannot be used to generate units.
-On-the-fly generation is done with the gen action, which can be called from methods or TCMs. gen expression [keeping {constraint-block}];
-Lets the generator react to the DUT current state
Index
Introduction
E Basics
Data Types
Operators
Struct
Units
List
Methods
Concurrency Actions
Constraints
Extend
When And Like
Events
Temporal Expressions
Temporal Operators 1
Temporal Operators 2
Synchronizing With The Simulator
Wait And Sync
Physical Virual Feilds
Packing N Unpacking
Pre Run N On The Fly
Coverage
Commands
Extendable Methods
Non Extendable Methods
And Gate Evc
Report a Bug or Comment on This section - Your input is what keeps Testbench.in improving with time!
Introduction
E Basics
Data Types
Operators
Struct
Units
List
Methods
Concurrency Actions
Constraints
Extend
When And Like
Events
Temporal Expressions
Temporal Operators 1
Temporal Operators 2
Synchronizing With The Simulator
Wait And Sync
Physical Virual Feilds
Packing N Unpacking
Pre Run N On The Fly
Coverage
Commands
Extendable Methods
Non Extendable Methods
And Gate Evc
Report a Bug or Comment on This section - Your input is what keeps Testbench.in improving with time!