Thus these registers are used to store the memory locations where the Program Counter and Stack pointers point to and as we discussed earlier address of a memory location is of 16 bit, so therefore these registers are of 16 bit so that they can store the 16 bit address as data in these registers.
In POP instruction, after each execution of the instruction, the stack pointer is a) incremented by 1 b) decremented by 1 c) incremented by 2 d) decremented by 2 Answer: c Explanation: The actual current stack top is poped into the specific operand as the contents of stack top memory is stored in AL&SP and further ...
As there is no arithmetic or logical operation being performed, no flags are affected by data transfer instructions. Arithmetic instruction: Arithmetic Instructions are the instructions that perform basic arithmetic operations such as addition, subtraction, and a few more.
Explanation: Though the Stack segment is initialised, the SS and SP pointers must be initialised. Explanation: The number of PUSH instructions must be equal to the number of POP instructions. Explanation: The 8086 microprocessor does not support direct BCD packed operations.
A processor register (CPU register) is one of a small set of data holding places that are part of the computer processor. A register may hold an instruction, a storage address, or any kind of data (such as a bit sequence or individual characters). Some instructions specify registers as part of the instruction.
memory address register (MAR) memory data register (MDR) current instruction register (CIR) accumulator (ACC)
TRAP
The first factor that affects the processing speed of a computer is a register. A register is a small, high-speed memory inside a CPU. ... Computers with 32-bit registers mean the CPU can process four bytes of data at one time. The bigger size of the register increases the performance of the computer.
A CPU that offers multiple cores may perform significantly better than a single-core CPU of the same speed. Multiple cores allow PCs to run multiple processes at the same time with greater ease, increasing your performance when multitasking or under the demands of powerful apps and programs.
Here are seven ways you can improve computer speed and its overall performance.
Word size—The word size, the maximum number of bits the CPU can process at one time, helps determine the speed. The word size also determines which operating system the CPU can use and which software it can run. Clock speed—The number of operations per clock tick (one pulse of the system clock) affects CPU performance.
The bottom line: larger word lengths means we can process more data faster in the processor, which is greatly needed as we advance computing technology. This is why so many instruction set extensions (MMX, SSE, etc…) have been created: to process larger amounts of data in less amount of time.
In general, a higher clock speed means a faster CPU. However, many other factors come into play. Your CPU processes many instructions (low-level calculations like arithmetic) from different programs every second. The clock speed measures the number of cycles your CPU executes per second, measured in GHz (gigahertz).
A multiprocessing system uses more than one processor to process any given workload, increasing the performance of a system's application environment beyond that of a single processor's capability. This permits tuning of the server network's performance, to yield the required functionality.
In common CISC chips are relatively slow (compared to RISC chips) per instruction, but use little (less than RISC) instructions. ... Therefore fewer, simpler and faster instructions would be better, than the large, complex and slower CISC instructions.
The benefit of having a large number of registers depends on the workload and the latency and parallelism of the hardware. Fujitsu's SPARC64 VIIIfx provided more registers than Itanium, but specifically targeted high performance computing.
Multiprocessing systems
Multithreading is always faster than serial. Dispatching a cpu heavy task into multiple threads won't speed up the execution. On the contrary it might degrade overall performance. Imagine it like this: if you have 10 tasks and each takes 10 seconds, serial execution will take 100 seconds in total.
The execution of more than one task simultaneously is known as multitasking. ... The availability of more than one processor per system, that can execute several set of instructions in parallel is known as multiprocessing.
Many browsers are built using a multi-process architecture, which means the browser is split into different processes. Browser process: This is the main process, which helps manage windows and tabs, and controls the browser frame such as the address bar and forward and back buttons.
There are two types of systems: Uniform memory-access (UMA) system. NUMA system.
A multiprocessing operating system (OS) is one in which two or more central processing units (CPUs) control the functions of the computer. Each CPU contains a copy of the OS, and these copies communicate with one another to coordinate operations.
Multiprocessing, in computing, a mode of operation in which two or more processors in a computer simultaneously process two or more different portions of the same program (set of instructions).
A multiprocessing system has more than two processors whereas Multithreading is a program execution technique that allows a single process to have multiple code segments. Multiprocessing improves the reliability of the system while in the multithreading process, each thread runs parallel to each other.
At the level of the input-output devices, multiprocessing can be achieved through the use of multiplexing, that is, the simultaneous use of several input-output devices because of the speed of the transfer of data to and from the central processing unit and the slowness of the preparation for the transfer.
A release time a, an execution time e, and an absolute deadline d. The job j has to receive a total of e execution units in the [a, d) interval. The real-time system is a finite or infinite collection of jobs: J = {j 1 , j 2,…}. An aperiodic task is a nonrecurring task which generates a single job in the system.