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Language in C Interview Questions and Answers

Ques. How do I write code that reads the segment register settings?

Ans. We can use segread( ) function to read segment register settings. There are four segment registers‚??code segment, data segment, stack segment and extra segment. Sometimes when we use DOS and BIOS services in a program we need to know the segment register's value. In such a situation we can use segread( ) function. The following program illustrates the use of this function.
#include <dos.h>
main( )
struct SREGS s ;
segread ( &s ) ;
printf ( "\nCS: %X DS: %X SS: %X ES: %X",s.cs,
s.ds,, ) ;
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