improves interp, only calls decode once per instr
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@ -267,7 +267,7 @@ typename vm_base<ARCH>::virt_addr_t vm_impl<ARCH>::execute_inst(finish_cond_e co
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uint32_t inst_index = instr_decoder.decode_instr(instr);
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opcode_e inst_id = arch::traits<ARCH>::opcode_e::MAX_OPCODE;;
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if(inst_index <instr_descr.size())
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inst_id = instr_descr.at(instr_decoder.decode_instr(instr)).op;
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inst_id = instr_descr[inst_index].op;
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// pre execution stuff
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this->core.reg.last_branch = 0;
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