What's going on with the Arm A510 and Aarch 64?

By: James (no.delete@this.thanks.invalid), June 1, 2021 5:02 am
Room: Moderated Discussions
In October last year, Arm's public line was
Starting with Arm’s 2022 IP, all future Cortex-A “big” cores will only support 64-bit.
Given the overview nature of the press release, that heavily implied that the "little" cores would still support 32 bit for a while.

Last week, Arm announced the new A510 and A710 to replace the A5x and A7x. The little A510 (with a new architecture) is 64 bit only already, and the A710 supports A64, A32 and T32 ISAs.

So what's going on?
  • Did Arm decide to pull forward end of support for 32 bit, and just not enable it for the A510?
  • Is the A510 out sooner than expected? Does that explain why its performance is underwhelming (they've got it working, but not all features are enabled yet)?
  • Was there an ARM v9 version of the A55 they decided not to release?
  • Are Arm expecting to add 32 bit support to the A510's successor next year, while they remove it from the A710's successor, so that some cores in a asymmetric multi-core chip support 32 bit, but which ones can vary?
 Next Post in Thread >
TopicPosted ByDate
What's going on with the Arm A510 and Aarch 64?James2021/06/01 05:02 AM
  What's going on with the Arm A510 and Aarch 64?Not Larry Page2021/06/01 05:23 AM
  What's going on with the Arm A510 and Aarch 64?dmcq2021/06/01 02:42 PM
  Mildly related; why does Neoverse N2 still support aarch32Ganon2021/06/01 05:38 PM
    Mildly related; why does Neoverse N2 still support aarch32Ganon2021/06/01 05:38 PM
      Mildly related; why does Neoverse N2 still support aarch32dmcq2021/06/02 03:49 AM
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