Summary

• split the A5 tile-to-micro library into small opcode-focused modules such as tbinary.py, tunary.py, texpand.py, treduce.py, and tsort.py
• expose the public A5 surface with t... helpers like tadd, trow_sum, and tgather, and rename the generated vector-copy example to a5_vector_copy
• refresh the A5 docs, coverage checklist, generated .pto artifacts, and regression tests around the new layout

Details

• tadd and the other tile helpers now read as direct PTO micro-instruction examples, for example pto.vlds -> pto.vadd -> pto.vsts
• shared A5 helper logic moved into _common.py, while remaining direct tile/cube wrappers live in native.py
• wrapper interop in ptodsl.language and ptodsl.api.scalar now accepts any object with .raw, which lets the split A5 helpers work cleanly with this PTO-ISA fork's builder surface

Validation

• PYTHONPATH=... python -m pytest -q tests/regression/test_a5_lib_regression.py tests/regression/test_tile_micro_coverage.py
• result: 27 passed in 0.40s
• PYTHONPATH=... python scripts/generate_a5_pto.py