CPU & Instruction Execution
Fetch–decode–execute, ISAs, pipelines, branch prediction and speculation — what the processor is really doing.
- 1✓
How does a CPU actually execute a program? Walk through the fetch–decode–execute cycle.
senior🎬 animated - 2✓
What is an instruction set architecture? CISC vs RISC, and why does x86 vs ARM matter to a software team in 2026?
senior - 3✓
What is pipelining, what are hazards, and how do stalls actually eat your performance?
staff - 4✓
Branch prediction and speculative execution — how they work, why they're worth it, and what Spectre changed.
staff - 5✓
Out-of-order, superscalar execution and the privilege machinery — how does the modern CPU picture fit together?
architect