Leo, once Diana approves and merges PR #403, execute the SPEC 548.exchange2_r validation using the new test infrastructure. **Validation tasks:** - [ ] Wait for PR #403 merge completion - [ ] Execute SPEC benchmark tests via GitHub Actions (not locally) - [ ] Verify 548.exchange2_r runs successfully with new BIC/ORN/EON instructions - [ ] Collect execution timing and instruction coverage data - [ ] Report any instruction gaps or execution issues discovered - [ ] Document validation results for accuracy analysis **Context:** - BIC/ORN/EON instructions merged in PR #402 - Test infrastructure added in PR #403 - This validates our logical instruction completeness - Sets up for broader SPEC benchmark validation **Priority: High** - critical for SPEC validation milestone **Dependencies:** PR #403 merge completion