0000
-   0001
--------
    1111  

0 < 1, S=1 V=0 L=(S xor V)=(S != V)=1

    0001
-   0000
--------
    0001

1 not < 0, S=0, V=0 L=(S != V)=0

    0111  second operand
-   1111  first operand
--------
    1000

7 not < -1, S=1, V=1 L=(S != V)=0

    1110 (11111110)
-   0111 (01111111)
--------
    0111

-2 < 7, S=0, V=1 L=(S != V)=1