Table of Contents
CS401 MIDTERM SOLVED PAPERS
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Assembly Language Programming:
In newer architectures, the distinction between accumulator and index registers has become vague. They have general registers which are more versatile and can do both functions. They do have some specialized behaviors but basic operations can be done on all general registers. Flags Register or Program Status Word.
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The bits of the flag register work independently and individually, and combined its value is meaningless. An example of a bit commonly present in the flag’s register is the carry flag. The carry can be contained in a single bit as in binary arithmetic the carry can only be zero or one. If a 16bit number is added to a 16bit accumulator, and the result is 17 bits the 17th bit is placed in the carry bit of the flags register.
CS401 Assembly Language Programming:
Without this 17th bit, the answer is incorrect. More examples of flags will be discussed when dealing with the Intel-specific register set. Program Counter or Instruction Pointer Everything must translate into a binary number for our dumb processor to understand it, be it an operand or an operation itself.
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Therefore the instructions themselves must be translated into numbers. For example to add numbers we understand the word “add.” We translate this word into a number to make the processor understand it. This number is the actual instruction for the computer.
CS401 MIDTERM SOLVED PAPERS:
All the objects, inheritance, and encapsulation constructs in higher-level languages translate down to just a number in assembly language in the end. Addition, multiplication, shifting; all big programs are made using these simple building blocks. A number is at the bottom line since this.