Hardware interrupt is a signal that indicates that an event caused by the hardware has occurred. Therefore, it deviates the normal flow of CPU operation so that the CPU can deal with the interrupting device. When a hardware interrupt occurs, the original program that is being executed by the CPU is suspended and its status saved. The control is then transferred to an interrupt handler which is a special routine that processes interrupts. The interrupt handler, performs the tasks or the processes that correspond to the interrupt. Once it is complete, the control is either returned back to the ...
Essays on Memory Access
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Design principles
The ARM stands for Advanced RISC Machine which is the architecture that is used to build processors. One of the ARM architectures is ARMv6. The development of this architecture was due to the need to enhance the various constraints that have been of great concern for the development of the ARM architecture. The main issue of concern of the Next generation architectures has been the need to meet the needs of the market which keep on evolving. The different parameters like speed, performance, power, and cost should be the determining factors in the design and development of architectures. ARM ...
Abstract
There has been the introduction of architectures that are mutlicore in nature and for that reason; there has been the emergence of applications which are multi-threaded which are commonly susceptible to bugs of synchronization like data races. The development and use of software that are able to detect data races are known to incur a lot of costs due to increase in overhead costs. The use of hardware for the detection of the data race is a solution that can be used and is better and cheaper than that of software use. All the hardware solutions that have been proposed for ...
Introduction
Computer technology has displayed immense growth rate. These include processor developments alongside memories. Indeed, it is the technology improvements that have kick started the computer industry Mid 1980s and early 1990s, saw new great performance RISC microprocessors appearing, which was rather influenced by CPU models similar to discrete RISC like the IBM801. RISC microprocessors were first used in special purpose computers and UNIX workstations, though it gained acceptance in other areas. HP unveiled its first system containing a PA-RISC CPU.MIPS computers unveiled the first commercial RISC microprocessor design which was 32-bit R2000. Storage of big programs in memory became a ...