History of convert 1 change

In src/cpu/extract.py, lines 25–40 on 2980b7b6d7cdf3928225cc12b965cc5c497b02b98a2ab5cf271549a7dfbe0c1e. Every change that wrote or deleted one of these lines, or deleted a line from between them. Exact, because each line keeps its identity across edits; edits elsewhere in the file are not here. Also: oxy log -L 25,40:src/cpu/extract.py.