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Update readme for runtests

This commit is contained in:
Luke Wren 2022-05-30 01:12:16 +01:00
parent 2cfe6aa90e
commit e2c9901701
1 changed files with 3 additions and 3 deletions
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6
test/sim/sw_testcases/Readme.md
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@ -32,13 +32,13 @@ To run the tests:
This will first rebuild the simulator (`../tb_cxxrtl/`) if needed, then build and run all the software testcases, then print out a summary of test pass/fail status. The `./run_tests` executable itself returns a successful exit code if and only if all tests passed. A printf log will be created for each test, with the same name as the test, at `tmp/test_name.log`.
VCD waveform dumping is not enabled by default, because tests run faster without waves, and dumping waves for all tests uses > 1 GB of disk space. To re-run a failing test and get wave output, run:
VCD waveform dumping is not enabled by default, because tests run faster without waves, and dumping waves for all tests uses gigabytes of disk space. To re-run a failing test `testname` and get wave output, run:
```bash
make APP=test_name
./runtests testname --vcd
```
This creates a VCD file at `tmp/test_name_run.vcd`.
This creates a VCD file at `tmp/testname_run.vcd`. If you really want, you can pass `--vcd` without naming specific tests, to generate waves for all tests.
To clean up the junk: