Recursive row match with VBA Code

[genetist]

I have data like this with 6 columns

LINES	AB1	AB2	AB3	AB4	AB5
P1	Z/Z	T/T	-/-	T/T	T/T
P2	A/A	A/A	G/G	Z/Z	T/T
1	G/G	T/T	G/G	T/T	G/G
2	T/T	A/A	C/C	C/C	T/T
3	T/T	G/G	T/T	G/G	T/T
4	A/A	C/C	A/A	A/A	A/A
5	A/A	A/A	T/T	T/T	A/A
P1	Z/Z	T/T	-/-	T/T	T/T
P2	A/A	A/A	G/G	Z/Z	T/T
1	G/G	T/T	G/G	T/T	G/G
2	T/T	A/A	C/C	C/C	T/T
3	T/T	G/G	T/T	G/G	T/T
4	A/A	C/C	A/A	A/A	A/A
5	A/A	A/A	T/T	T/T	A/A

1. First I want to find how many columns (from AB1 to AB5) are different for P1 and P2 ,

Eq means: Both P1 and P2 should contain same letters (alleles) or if any one of P1 or P2 contains Z/Z or -/- I should consider them as eq only. Now I am using IF condition for this

1. I will compare lines column values from 1 with P2 across all the columns (from AB1 to AB5) in horizontal way and continue for remaining lines from 2 to 5. if they match I would like to give 1 else 0 and I would like to continue this till my programme encounters second set of P1 and P2. Presently I am doing this with this formula =if(D4=D$3,1,0).

1. I will make sum for lines 1 to 5 across all the columns from columns AB1 to AB5, but I will include only columns showing different for P1 and P2 in my sum count. Now I am working on this with sumif formula.

1. I will calculate percentage of matching lines 1 to 5 with P2 by dividing sum came from SUMIF with number of different markers between P1 and P2.

1. I want to repeat this for remaining set of P1 and P2.

I am expecting like this

LINES	XY1	XY2	XY3	XY4	XY5
P1	EQ	NE	EQ	EQ	EQ	SUM	%
P2						1
1	0	0	1	0	0	0	0
2	0	1	0	0	1	1	100
3	0	0	0	0	1	0	0
4	1	0	0	0	0	0	0
5	1	1	0	0	0	1	100

Like this I have data in more than 5000 rows and at present I am doing in excel 2010 with different formulas but it is taking lot of my energy. If anyone provide VBA code for this task I will be more happy and it would be appreciated. Please see my attached file for better understanding, may be i did not explained my problem very well to you.
Regards,
Genetist.