Update README.md

yatli · Jul 3, 2020 · 9499ff7 · 9499ff7
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@@ -18,6 +18,13 @@ Copy the whole `dsp56k_ghidra` folder to `Ghidra_installation/Ghidra/Processors/
 
 Note, this conflicts with module installation.
 
+## Limitations and known issues
+
+- A lot of instructions generate wrong CCR flags. The decompiler may output nonsense.
+- You'll see a lot of shifting, due to the layout of the register file and the instruction semantics.
+- Nested DO loop is supported, up to 3 layers. But it doesn't work everytime. "Repair flow" seems to help Ghidra to sort out the contextual state and correct the state flow.
+- Not 100% instruction coverage. See https://github.com/yatli/ghidra_dsp56k/issues/1 .
+
 ## Bonus docs
 
 Ghidra schemas: https://github.com/NationalSecurityAgency/ghidra/tree/master/Ghidra/Framework/SoftwareModeling/data/languages