On 28 February 2018 at 13:32, Alex Bennée <alex.ben...@linaro.org> wrote: > Peter Maydell <peter.mayd...@linaro.org> writes: >> (3) Is this complete fp16 support or are there still more pieces to come? >> I'm assuming it's all done... > > All AArch64 is done. I'm not sure how much AArch32 is needed for SVE > support. The ARM ARM says "When this feature is implemented it is > implemented in both Advanced SIMD and floating-point, and in AArch64 and > AArch32 states." but I think it is legal to have a 64 bit only CPU > without AArch32?
64-bit only is legal, but none of our current implemented CPUs (including the proposed "max") are 64-bit only :-) For linux-user it doesn't matter, because the code will only run as AArch64 anyway, but before we advertise it in the ID registers for system emulation I would definitely prefer to have the AArch32 instructions. Do you have a feel for how much work the AArch32 side is? thanks -- PMM
