Hello, I'm currently exploring adding new instructions to the RISC-V ISA. I followed along with the gem5 bootcamp lectures on YouTube and successfully created the add16 instruction.
Now, I'm curious if I can define an instruction that reads from a lookup table. I'm hoping to simulate the functionality of a lookup table in the instruction implementation. Can I define a global array in decoder.isa and read from this global array in the instruction implementation in decoder.isa? Or will this not work with the way code is autogenerated? Is there a recommended way to implement this functionality? Thank you! Sincerely, James
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