>jabl *claims* that some of the A64 chips had no 32-bit mode. Fair Enough. [1] S... | Hacker News

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		ksec on March 7, 2019 \| parent \| context \| favorite \| on: ARM processors like A12X are nearing performance p... >jabl claims that some of the A64 chips had no 32-bit mode. Fair Enough. [1] States it is AArch 64 only. I spent some time trying to find the official answer to AArch32 being optional, unfortunately nothing concrete has come up. [1] https://www.qualcomm.com/news/onq/2017/10/05/qualcomm-centri...

als0 on March 11, 2019 [–]

The reference you're looking for is likely to be the ARMv8-A Architecture Reference Manual. For example, it mentions in multiple places "if AARCH32 is not implemented".

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