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Russ Cox authored
(on plan 9 cc calls it log2, but that conflicts here.) the difference is that xlog2 returns -1 on non powers of 2. 8c was rewriting /10 into /8. R=ken OCL=29968 CL=29968
8720b472
(on plan 9 cc calls it log2, but that conflicts here.) the difference is that xlog2 returns -1 on non powers of 2. 8c was rewriting /10 into /8. R=ken OCL=29968 CL=29968