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What is software interrupt?
A software interrupt is initiated by implementing an instruction. Software interrupt is a special call instruction that behaves like an interrupt rather than a subjective call. The most common use of software interrupt is associated with supervision call instruction. This instruction gives means for switching from a CPU user mode to the supervision mode. A software interrupt that steers the old CPU state and brings is new PSW that belongs to the supervisor mode
How does throwing and catching exceptions differ from using setjmp and longjmp? Ans) The throw operation calls the destructors for automatic objects instantiated as entry to th
Differentiate between linear addressing and matrix addressing modes with examples. Ans: Linear Addressing: Addressing is the procedure of selecting one of the cells in a
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SS7 Protocol uses: (A) Out of band signalling. (B) Associated signalling. (C) Speech control signalling. (D) No signalling. Ans: SS7 Protocol uses Out of
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INT 21H supports about 100 different functions. A function is recognised by putting the function number in AH register. For illustration if we want to call function number 01 then
Q. Conversion of BCD number to binary using a procedure? Conversion of BCD number to binary using a procedure. Algorithm for conversion procedure: Take a packed BCD digit
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What is meant by bitwise operations? C has distinction of supporting special operators known as bit wise operators for manipulation of data at bit level. These operators are us
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