don't understand the meaning of the -A parameter

[greyireland]

If you use create2 to create a contract address, is there a factory address here? I don't understand the meaning of the - a parameter? I tried to set - A as the factory address. The generated contract address is incorrect

[wangbar0133]

Same problem. I using -A parameter as factory comtract address but got wrong address.
I made a tool by using go-ethereum crypto lib, but it's too slow to use.
https://github.com/wangbar0133/create2

[dennohpeter]

same problem here