9:41:13hayleyI guess you can read about read-don't-modify-write operations if you like.
10:51:43hayleyI made an attempt at metering SICL bootstrapping: the HIR evaluator was modified so that RPLACA and RPLACD instructions would increment a counter, and bootstrapping was modified so that the functions imported for RPLACA and RPLACD would increment the same counter, and CONS, LIST and LIST* would increment another counter.
10:53:10hayleyThere were 2,778,200 cons cells allocated by those functions, and 74,383 updates were performed. But these numbers don't mean very much.
10:59:34hayleyAfter remembering to meter the SETF functions, 100,884 updates were detected.