countertest: update README
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@ -6,3 +6,12 @@ This program provides a self-test for the counter CSRs, testing the following fe
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- Functionality of `mcountinhibit`.
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- Functionality of `mcountinhibit`.
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This program provides a simple framework for privilege mode switching and expected exception capture, which could be applied to other test programs.
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This program provides a simple framework for privilege mode switching and expected exception capture, which could be applied to other test programs.
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## How-to
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In `tests/countertest`, run
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```
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make ARCH=riscv64-xs
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```
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You will get `countertest-riscv64-xs.bin` in `tests/countertest/build`.
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This program would `HIT GOOD TRAP` if there were no fatal error.
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