Migrating from AMD Vivado to Axiom

Axiom was built from first principles to provide a drop-in replacement for the simulation and verification workflows in AMD Vivado Design Suite.

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Command Mapping Overview

Task	AMD Vivado Command	Axiom CLI Equivalent
Parse Verilog	xvlog design.v	Embedded in axiom compile
Elaborate Design	xelab -top my_top work.my_top	axiom compile design.v -t my_top
Run Simulation	xsim snapshot -tclbatch run.tcl	axiom run design.v -t my_top --ticks 100
Dump VCD Waveform	open_vcd, log_vcd, close_vcd	axiom run design.v -t my_top --vcd out.vcd
Export SAIF Activity	open_saif, log_saif, close_saif	axiom run design.v -t my_top --saif out.saif
Benchmark Latency	Manual stopwatch / profile logs	axiom benchmark design.v -t my_top --cycles 5000

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Zero Disk Snapshot Overhead

In Vivado, elaboration produces an on-disk snapshot directory:

# Vivado: Multi-stage, multi-minute file writes
xvlog alu.v
xelab -top alu work.alu -s alu_snapshot
xsim alu_snapshot -R

In Axiom, compilation and simulation execute 100% in RAM:

# Axiom: In-RAM, sub-3 millisecond turnaround
axiom run alu.v -t alu --ticks 100

No xsim.dir cache directories, no multi-gigabyte snapshot files, and no stale binary artifacts.