+ /eda/oss-cad-suite/bin/iverilog -o simulation.out -g2012 -s nerv nerv.sv
nerv.sv:565: error: Unable to bind wire/reg/memory `irq_num' in `nerv'
nerv.sv:625: : A symbol with that name was declared here. Check for declaration after use.
nerv.sv:565: error: Unable to elaborate r-value: ((((running)&&(imem_valid))&&(!(irq_num)))&&((insn_opcode)==(OPCODE_SYSTEM)))?(insn_funct3['sd1:'sd0]):(2'd0)
nerv.sv:612: error: Net csr_hpm_event_sel['sd2:'sd0] is not defined in this context.
nerv.sv:1171: : A symbol with that name was declared here. Check for declaration after use.
nerv.sv:613: error: Net csr_hpm_counter_sel['sd1] is not defined in this context.
nerv.sv:766: : A symbol with that name was declared here. Check for declaration after use.
nerv.sv:614: error: Net csr_hpm_counterh_sel['sd1] is not defined in this context.
nerv.sv:967: : A symbol with that name was declared here. Check for declaration after use.
nerv.sv:1052: error: Unable to bind wire/reg/memory `mem_rdata' in `nerv'
nerv.sv:1087: : A symbol with that name was declared here. Check for declaration after use.
6 error(s) during elaboration.