Bitmask redux

[Dreamspinner]

Is this an error on p. 22? Why is that bit set in the result?

A:      11001100
Mask:   00010000
A&Mask: 00010000

[markd2]

Yep, that illustration is borked. The result should be all zeros. The intent was to have the one bit set in A, but it got confused.

[Dreamspinner]

Thanks. Cruft happens…