In my tests, these instructions were used infrequently:
Code:
1e ASL $nnnn,X
41 EOR ($nn,X)
59 EOR $nnnn,Y
5E LSR $nnnn,X
81 STA ($nn,X)
a1 LDA ($nn,X)
b8 CLV
And these instructions were used VERY VERY infrequently:41 EOR ($nn,X)
59 EOR $nnnn,Y
5E LSR $nnnn,X
81 STA ($nn,X)
a1 LDA ($nn,X)
b8 CLV
Code:
21 AND ($nn,X)
56 LSR $nn,X
61 ADC ($nn,X)
E1 SBC ($nn,X)
56 LSR $nn,X
61 ADC ($nn,X)
E1 SBC ($nn,X)