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PPC is/was different from POWER. Technically related but they diverged enough that it was a different ISA for all intents and purposes
by aryonoco 6y ago
PPC is/was different from POWER. Technically related but they diverged enough that it was a different ISA for all intents and purposes
- hlandau 6y agoTo be clear, you're talking about the original POWER ISA. The PowerPC ISA has subsequently been renamed the Power ISA (not to be confused with the POWER ISA). Confusingly, IBM's POWER CPUs (POWER3, POWER4, POWER5, POWER6, POWER7, POWER8, POWER9) since POWER3 implement the Power ISA (then known as the PowerPC ISA), not the POWER ISA. POWER2 was the last CPU to implement the POWER ISA. https://en.wikipedia.org/wiki/IBM_POWER_instruction_set_architecture https://en.wikipedia.org/wiki/IBM_POWER_instruction_set_arch... https://en.wikipedia.org/wiki/Power_ISA https://en.wikipedia.org/wiki/Power_ISA
- rbanffy 6y agoAnd now the ISA has been updated for the POWER10 CPUs that'll be announced shortly.