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Method for generating functional tests for a microprocessor having several operating modes and features
| Details |
Inventors: Parker, Allan; Skrovan, Joseph C.;
Assignee: Advanced Micro Devices, Inc. (Sunnyvale, CA)
Primary Examiner: Sheikh; Ayaz R.
Assistant Examiner: Backer; Firmin
Attorney, Agent or Firm: Daffer; Kevin L. Conley, Rose & Tayon
A method is presented for generating functional tests for a microprocessor having several operating modes and features. A test module template file includes a basic set of instructions required to configure the microprocessor to operate in any one of the several operating modes and with any of the several features enabled. A user modifies a copy of the test module template file to form a test module file which provides a desired operating environment and causes the microprocessor to perform a desired activity and to produce a test result. An assembler takes as input the test module file, along with the contents of any library files to be included, and produces both an assembly code list file and a test code file. The assembly code list file is a computer program listing containing assembly language instructions and data. The test code file is intended for execution by: (i) a model of the microprocessor existing within a simulation system, or (ii) a hardware implementation of the microprocessor residing within a computer system. The user specifies at execution time the operating mode of the microprocessor and any features to be enabled via a command line. An expected test result of the desired activity is derived from a functional specification of the microprocessor. The test result is compared to the expected test result in order to determine proper operation of the microprocessor. |
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DETAILED DESCRIPTION The problems outlined above are in large part solved by a method of generating functional tests for a microprocessor having several operating modes and features.
A test module template file of a functional test generation system includes a basic set of instructions required to configure the microprocessor under test to operate in any one of the several operating modes and with any of the several features enabled.
A user of the functional test generation system modifies a copy of the test module template file to provide a desired operating environment and to include instructions which cause the microprocessor to perform a desired activity and to produce a test result.
The functional test generation system also allows the user to specify at execution time the operating mode of the microprocessor under test and any features to be enabled.
The functional test generation system is capable of generating functional tests for execution by a model of the microprocessor under test existing within a simulation system.
The functional test generation system is also capable of generating functional tests for execution by a hardware implementation of the microprocessor under test residing within a computer system.
The test module template file includes a setup code portion, a user code portion, and a completion code portion.
Each portion of the test module template file includes assembly language instructions, data, and assembler directives (i.
e.
, software instructions).
The user modifies the copy of the test module template file by adding, modifying, or deleting software instructions within the test module template file in order to form a test module file.
The setup and completion code portions are modified in order to configure the microprocessor to operate in any one of the several operating modes and with any of the several features enabled.
The user code portion is modified in order to cause the microprocessor to perform a desired activity and to produce a test result.
An assembler takes as input the test module file, along with the contents of any library files to be included, and produces both an assembly code list file and a test code file
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