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Q. Explain about data registers?
The data registers are used just for storing intermediate results or data and not for operand address calculation.
Some dedicated address registers are:
Segment Pointer : Employed to point out a segment of memory.
Index Register : These are used for index addressing scheme.
Stack Pointer: Points to top of stack when programmer visible stack addressing is used.
One of fundamental issues with register design is number of general-purpose registers or data and address registers to be provided in a microprocessor. Number of registers also affects instruction design as number of registers concludes the number of bits required in an instruction to specify a register reference. In common it has been found that optimum number of registers in a CPU is in range 16 to 32. In case registers fall below range then more memory reference per instruction on an average will be required as some of intermediate results then have to be stored in memory. Instead if the number of registers goes above 32 then there is no appreciable reduction in memory references. Though in a number of computers hundreds of registers are used. These systems have special features. These are known as Reduced Instruction Set Computers (RISC) and they exhibit this property.
Harvard mark i and the bug The next important effort towards devising an electromechanical computer was done at the harvard University, jointly sponsored by the Department of U
What is the kernel? A more common definition is that the OS is the one program running at all times on the computer ,usually known as the kernel, with all else being
There is a pebble merchant.He sells the pebbles,that are used for shining the floor.His main duty is to take length of the room''s sides. program 1 : package test.padovanstring
Input Output Techniques: o Interrupt driven o Direct Memory Access (DMA) o Programmed Programmed I/O CPU has control over I/O directly Read/write
Q. What is Message Passing Libraries? In this part we will consider about message passing libraries. Traditionally a range of message passing libraries have been available ever
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Define Assembly Assembly is a one deployable unit that contains information about the execution of classes, structures and interfaces. it also keeps the information about itsel
4) A positive integer is entered through the keyboard;write a function to find the binary equivalent of this number using recursion.
Execution of a program in CPU is completed employing different set of registers and their individual circuitry. As CPU registers are used for execution of interrupt service routine
explan volage triper and voltage quadrupler.
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