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Re:Reverse-engineering the division microcode in the Intel 8... by andoma on Saturday April 08, 2023 @03:51PM (#35496941)
Pretty sure some of the low-end Cortex-M cores (M0 and M1) lacks instructions for division.
Re:Reverse-engineering the division microcode in the Intel 8... by pm215 on Saturday April 08, 2023 @03:59PM (#35497009)
Good point, it's not in v6M, though it is in v8M baseline, which is the v8 equivalent. So M0, M0+ and M1 don't have it but I think everything else M-profile should.
Re:Reverse-engineering the division microcode in the Intel 8... by colejohnson66 on Monday April 10, 2023 @07:40AM (#35511210)
Given that Ken said most ARM processors, the nerd sniping becomes: what percentage of all ARM cores are M0/M0+/M1. I'd guess a lot (maybe not half though). Don't all micro SD cards have a processor inside them? They're probably almost all ARM...