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On the 65816, if you say "JSR foo" from bank $12, but "foo" is an address in bank 0, most assemblers will conclude that you're forming a 16-bit argument with a 16-bit address and assemble happily. 64tass halts with an error. Up until v1.55 or so, you could fake it out by supplying a large offset. This no longer works. The preferred way to say "no really I mean to do this" is to append ",k" to the operand. We now do that as needed. I didn't want to define a new ExpressionMode for 64tass just to support an operand modifier that should probably never actually get generated (you can't call across banks with JSR!), so this is implemented with a quirk and an op flag. 64tass v1.56.2625 is now the default. (issue #104)
104 lines
4.2 KiB
Markdown
104 lines
4.2 KiB
Markdown
# SourceGen Test Data #
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This directory contains various regression tests.
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NOTE: some tests may fail if you use a version of the assembler that is
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different from the one used to generate the expected output. The current
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set was generated for:
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* 64tass v1.56.2625
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* ACME v0.97
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* cc65 v2.18
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* Merlin 32 v1.0
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## Generator/Assembler Tests ##
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Files with names like "10000-nifty-test" are regression test data files
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for the code generator. The test harness identifies them by filename
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pattern: five digits, a hyphen, then one or more alphanumeric and
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hyphens. Files with a '.' or '_' are ignored.
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If the leading number is between 10000 and 19999, inclusive, the test file
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will be loaded as a new project. A load address of $1000 is assumed.
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The CPU type is determined by the last digit: 0 for 6502, 1 for 65C02,
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2 for 65816, and 3 for W65C02. Undocumented opcodes are enabled. As with
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all new projects, the first byte will be tagged as a code start point. The
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entry flags are currently set to emulation mode, but tests should not rely
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on that.
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If the leading number is 20000 or greater, the test file will be loaded as
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a saved project. A file with the same name plus a ".dis65" extension will
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be opened as the project file.
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### Execution ###
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With debug features enabled, you can open the test runner from the menu
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with Debug > Source Generation Tests. Click "Run Test" to run all tests.
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For each test, the test harness will create a new project or open the
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project file. For every known assembler, the test harness will generate
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source code, and compare it to the corresponding entry in the Expected
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directory. If they don't match exactly, a failure is reported for the
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generation phase. (These are text files, so the line terminators are not
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required to match.) Next, the generated sources are fed to the appropriate
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cross-assembler, whether or not the sources matched expectations. If the
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assembler reports success, the output file is compared to the original data
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file. If these match, success is reported for the assembly phase.
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The top window in the test harness shows a summary of success or failure.
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The bottom window shows details reported for each individual test. Use
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the drop list to select which test is shown.
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The generated sources and assembled output is placed into a temporary
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directory inside SGTestData that is named after the test. For example,
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test 10000-allops-value-6502 will have all of its generated output in a
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directory called "tmp10000". If all parts of the test are successful, the
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directory will be removed. If generation or assembly fails, or if you check
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the "retain output" box in the test harness, the directory and its contents
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will remain. This allows you to examine the outputs when investigating
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failures.
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As a safety measure, the directory will NOT be removed if it contains files
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that the test harness doesn't recognize.
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### Updating Tests ###
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If you want to add or update a test, follow these steps:
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1. Make the changes to the test data file and test project file.
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2. Run the test harness. The generation test will fail and leave output in
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the tmpNNNNN directory. Make sure the assembly test is succeeding.
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3. After verifying that the generated sources look correct, copy them
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into the Expected directory, replacing any existing copies.
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4. Run the test harness. This should now report success, and will
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remove the tmpNNNNN directory.
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Be sure to have the version of the cross-assembler identified at the top
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of this document configured.
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### Other Notes ###
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The original source code used to generate the test cases can be found
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in the Source directory. The test harness does not use these files. If
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you want to update a test file, you will need to run the assembler
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yourself. The assembler used is noted in a comment at the top of the file.
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The code is not required to do anything useful. Many of the test cases
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would crash or hang if executed.
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## FunkyProjects ##
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This is a collection of project files with deliberate errors. These exist
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to exercise the load-time error reporting. See the README in that directory
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for a full explanation.
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## Visualization ##
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Some test projects and data files for exercising the visualization generators.
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Not part of a formal test; load the projects and eyeball the results.
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