Cross function

Hey,

I am doing a simple DC sweep & using the cross function in the calculator, i am finding the x-axis in my sweep range for a particular y-axis value. I am also aware that cross function used here gives the user the choice for rising edge or falling edge.

My queries-

1. Is it possible to implement the same using veriloga code?

2. Actually I am changing the value of gate input of the circuit & doing the sweep to find the particular Value in x-axis & calibrate something. If I change the Value of gate in 2 decimals, for example 2.57 (say), I have no problem. But when I use a 3rd integer for example   2.575 (say), the cross function gives me a wrong result. If I calibrate for 2.58, it works. But I am unable to calibrate in between 2.57 & 2.58. Seems cross function is rounding the integer. Is it possible to have facility for the user to set this limit in veriloga code??

3. When I use 10mV step in my DC sweep, i get x (say)

   When I use 5mV step , i get x/2.

   When I use 2.5mV, i get x/4. Why is this changing ? What is the default step of limit of cross function in CADENCE IC6 calculator?? If we write this code in veriloga, can we have a provision to set this too ??

Thanks in advance