#       ___0    _0__
A       0__0    1010
--------abs---------

abs     ___0    11__
absX    ___1    11__
absY    ___1    1___
--------------------
rel     0000    ___1
--------ind---------
ind     ___a    bb0c
        a   b   c
ind     0   1   0
X       0   0   1
Y       1   0   1

_: opcode?

ind     0110    1100
Xind    ___0	0001
indY    ___1    0001
--------------------
zpg     ___0    01__
zpgX    ___1    01__
zpgY    10_1    0110



___a bb_c
c => uses X|Y
a => x / y