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I have a system interrupt (right now just int 46h) that then calls a gets(). But, the gets() doesn't work. It seems like there are no other interrupts getting fired. How do other system's implement the user libraries?

Kindly refer this. May be you have the answer.
http://www.mega-tokyo.com/forum/index.p ... eadid=8997

Thank you for your time.
Vishal.