Dealing with 64 integer in MIPs

[DaSilva]

Hello

I am still beginner in MIPS Programming
Is there direct instructions that handle 64 bit integer operations in MIPS
If not,how do i handle 64 bit operations in MIPS

Second,when adding two numbers how do i know before performing the sum that there will be overflow or not

By the way I am looking for virtual labs for logic design and electronic circuits labs

Thanks in advance