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Picking apart the circuits in the ARM1 – the ancestor of your smartphone's brain

A Non e-mouse Silver badge

The simple RISC architecture of the ARM1 makes the circuitry of the processor easy to understand, at least compared to a [contemporary] chip such as the 386

The ARM processor was a 32-bit clean sheet design, with no legacy baggage to support. Whereas the i386 processor has a lot of backwards compatibility, being able to trace its roots back to the 16-bit 8086.

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