feat(L03): add blinker and synchronous logic card

tests/test_rtl.sh

@@ -0,0 +1,47 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+root="$(cd -- "$(dirname -- "${BASH_SOURCE[0]}")/.." && pwd)"
+mode=test
+if [[ "${1:-}" == "--build-only" || "${1:-}" == "--trace" ]]; then
+  mode="${1#--}"
+  shift
+fi
+task="${1:?task name is required}"
+
+case "$task" in
+  task01_clock_enable|task02_counter_blinker|task03_pattern_rom) ;;
+  *) printf 'Unknown RTL task: %s\n' "$task" >&2; exit 2 ;;
+esac
+
+state="${STEM_STATE_DIR:-$root/.stem/instances/local}"
+profile="${STEM_PROFILE:-hazard3-sim}"
+target="${STEM_TARGET:-hazard3-baremetal}"
+build_dir="$state/build/rtl/$task"
+artifact_dir="$root/.stem/artifacts/$profile/$target/$task"
+binary="$build_dir/sim"
+mkdir -p "$build_dir" "$artifact_dir"
+
+args=(--binary --timing --assert -Wall -Wno-fatal
+  -Wno-DECLFILENAME -Wno-BLKSEQ -Wno-UNUSEDSIGNAL --top-module tb
+  --Mdir "$build_dir/obj" -o "$binary"
+  "$root/src/tasks/$task.sv" "$root/tests/${task}_tb.sv")
+if [[ "$mode" == trace ]]; then
+  args+=(--trace)
+fi
+verilator "${args[@]}" >/dev/null
+cp -f "$root/src/tasks/$task.sv" "$artifact_dir/"
+
+if [[ "$mode" == build-only ]]; then
+  printf 'BUILD %s binary=%s\n' "$task" "$binary"
+  exit 0
+fi
+
+trace_file="$artifact_dir/$task.vcd"
+if [[ "$mode" == trace ]]; then
+  "$binary" "+trace=$trace_file"
+  test -s "$trace_file"
+  printf 'TRACE %s vcd=%s\n' "$task" "$trace_file"
+else
+  "$binary"
+fi