Threshold (T):

OR gate fan-in:

Ratio of XOR delay to OR delay:

Ratio of OR area to XOR area:

Ratio of (2,2) area to XOR area:

Ratio of (3,2) area to XOR area:

Ratio of (4;2) area to XOR area:

Allow (4;2) compressors in the following rows:

1:	2:	3:	4:
5:	6:	7:	8:
9:	10:	11:	12:

Allow ({m,i,j},3) unit starting in the following row:

1:	2:	3:	4:
5:	6:	7:	8:
9:	10:	11:	12:

Use ({m,i,j},3) unit