# xsim_run.tcl - Vivado xsim compilation and simulation script for comp_decomp_sync
#
# Compiles comp_decomp_sync RTL + dependencies + testbench and runs simulation.
# Run from the project root: ~/Dev/mlkem/
#
# Prerequisites:
#   source /opt/Xilinx/Vivado/2019.2/settings64.sh
#
# Usage examples:
#   # Step-by-step (from Tcl):
#   xsim -runall xsim_run.tcl
#
#   # Or via Vivado batch mode:
#   vivado -mode batch -source xsim_run.tcl
#
#   # Or manually:
#   xvlog -sv sync_rtl/common/pipeline_reg.v sync_rtl/comp_decomp/comp_decomp_sync.v sync_rtl/comp_decomp/TB/tb_comp_decomp_xsim.v
#   xelab tb_comp_decomp_xsim -s tb_comp_decomp_xsim
#   xsim tb_comp_decomp_xsim -R

# ================================================================
# Configuration
# ================================================================
set RTL_DIR  sync_rtl
set DUT_DIR  sync_rtl/comp_decomp
set TB_DIR   sync_rtl/comp_decomp/TB

# ================================================================
# Step 1: Compile all source files (xvlog)
# ================================================================
puts "=== Compiling RTL sources for comp_decomp_sync ==="

# Common dependency (pipeline register)
xvlog -sv -include_dirs . ${RTL_DIR}/common/pipeline_reg.v

# DUT (comp_decomp_sync) — uses `include "sync_rtl/common/defines.vh"
xvlog -sv -include_dirs . ${DUT_DIR}/comp_decomp_sync.v

# ================================================================
# Step 2: Compile testbench
# ================================================================
puts "=== Compiling testbench ==="

xvlog -sv ${TB_DIR}/tb_comp_decomp_xsim.v

# ================================================================
# Step 3: Elaborate snapshot (xelab)
# ================================================================
puts "=== Elaborating snapshot ==="

xelab tb_comp_decomp_xsim -s tb_comp_decomp_xsim

# ================================================================
# Step 4: Run simulation
# ================================================================
puts "=== Running comp_decomp_sync XSIM test ==="
xsim tb_comp_decomp_xsim -R

puts ""
puts "=== Simulation complete ==="