Why some specific tests are here:

37_{1,2,3}: check the behaviour of SCF with respect to bits 3 and 5
	    (bug fixed on 20040225).

cb{4,5,6,7}{7,f}_1: check that bits 3 and 5 are copied to F only
		    for BIT 3,<arg> and BIT 5,<arg> respectively (bug
		    fixed on 20040225).
