![]() They previously created models of two other CPUs – the 6800 and the MOS 6502 that gave the group their name. The virtual model of the ARM1 is a third similar project that the group called Visual6502 undertook. The sight of rows and rows of cooperating components forces you to admire the complexity of this invention and the people who built it.Īll you need to see the simulation of the CPU is an ordinary browser. The result is a working transistor-level model that allows you to see its individual components and their communication as the model steps through the code.īut to see the ARM1 architecture at work is an interesting experience even for a layman. (The ARM is quite suited to all these tasks – while powerful, it has a very low energy consumption and consequently a low heat output as well.) The ARM’s manufacturer provided the volunteer group with the original documentation of the architecture so that the model could be perfect. And they are even trying to take on servers. The virtual model of the ARM1 is mighty interesting to a lot of experts, as it’s one of the forefathers of the CPUs that run most of today’s tablets, smartphones and other mobile devices. How do the individual parts of the processing unit communicate? Through where does the data flow when it’s being processed? Answers to these questions are now easily accessible. The ARM company has recently celebrated its 25 th birthday. The virtual model of the CPU was also a birthday present for the ARM’s eponymous manufacturer. It was the precursor of modern ARM architectures that are ruling the today’s mobile CPU landscape. The ARM1 was chosen because it has a well-deserved place in the history of computing. ![]() You get to see what exactly the CPU’s innards do when they run through low-level commands like CMP or MOV. You can see how the tiniest parts of the CPU work and communicate together as they’re going through code right in your browser window. ![]() It was never easier to get a glimpse into how exactly do CPUs really work.Ī small group of volunteers calling themselves Visual6502 have built a virtual model of the old ARM1 CPU. Do you think that understanding the details of CPU architecture is a thing best left to the experts? Everyone can try to reach them now. ![]()
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