zCOBOL NIST COBOL 1985 Test Results
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zCOBOL Docs |
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The NIST COBOL Tests have been downloaded and are being used as an initial test of zcobol compliance with the COBOL 1985 Standard. There are 459 COBOL test programs of which 409 are currently being tested with zcobol. See the summary statistics showing translation, assembly, and execution by 2 character program name prefix. Currently they all translate without errors. See the translation statistics showing the frequency of each generated zcobol macro call listed in descending order by frequency followed by alphabetical list. The zcobol translator program zc390.java/class in z390.jar consists of 1625 lines of java code and uses regular expression parsing support to translate COBOL programs into equivalent HLASM compatible macro assembler calls. It's interesting to note that out of about 440,000 lines of COBOL code, the following make up over 80% of all verbs: PERIOD, MOVE, WS, PERFORM, LABEL, GO, IF, ADD, ELSE, and EXIT. PERIOD is the name of the macro generated to process end of sentence closing structures etc. WS is the name of the generated macro to handle all data definitions in working-storage and linkage section with unique qualified names. LABEL is the generated macro to handle creating unique qualified paragraph names. The translator also maps dashes in names to underscores, double quotes to single quotes, START to ZCSTART, and END DECLARATIVES to END_DECLARATIVES to avoid assembler conflicts. See the Generated HLASM Assembler Instructions showing the frequency of each generated HLASM assembler instruction listed in descending order by frequency followed by alphabetical list. The zcobol directory currently contains 119 macros corresponding to COBOL verbs and reserved section names plus 9copybooks totaling 7470 lines of conditional structured macro code. The zcobol directory macros in turn call code generation macros for the target language environment. The zcobol\z390 directory contains 44 code generation macros and 4 copybooks totaling 13,250 lines of conditional structured macro code. Of the million plus lines of generated HLASM assembler code generated, over 80% consist of the following: DS, LARL, EQU, L, MVC, BASR, DC, MVI, LAY, USING, ORG, DROP, and BRC. The LARL is used to address single literal pool without requiring base register. Much work has been done and the zcobol compiler does compile and execute programs including a number of EXEC CICS COBOL programs and also a number of demo and zcobol regression test COBOL programs. However, there is still much work to do to complete the NIST COBOL 1985 test suite. See the pending priority list here and join the zcobol user email group to participate in future direction of zcobol and the setting of priorities going forward. The HLASM generation macros could now be copied to other
target language directories for Java, C, and MASM and then
modified to generate the appropriate equivalent source code.
However, the current focus will remain on HLASM and since the
zcobol generic language macros which call the code generation
macros are still subject to change, delaying the start of
other target language macro libraries is recommended.
There are existing example generation macros already included
which support compiling the zcobol\demo\HELLO.CBL program into
executable J2SE Java, Microsoft Visual C, and Intel MASM
assembler. |
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Summary
Statistics call zpar\ZPARGEN zpar\ZCCLG \work\nist\src\*.CBL
TRANSLATE ASSEMBLY EXECUTION
CM 7 7 0 0 7 0 0 0 ** 408 408 0 48 358 0 9 28 Notes:
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Translation to zcobol Macro Calls All of the generated MLC files for the 409 NIST COBOL programs were read to produce this report using the command: zpar\ZPARMLC \work\NIST\SRC\*.MLC G3-ZPARMLC TOTAL OPCODES = 99 Notes:
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Generated HLASM Assembler Instructions The following report showing all the generated HLASM opcodes for all 409 of the NIST COBOL programs assembled using option BAL was generated using the following command: zpar\ZPARMLC \work\NIST\src\*.BAL G3-ZPARMLC TOTAL OPCODES = 142 Notes:
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Pending Priority List for zcobol Development The following priorities for the open source zcobol portable COBOL compiler are based on user feedback. Special thanks to Bill Klein for starting the process. To submit your priorities, join the zcobol user email group and post your requests:
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