Re: [RISC-V] [tech-cmo] Fault-on-first should be allowed to return randomly on non-faults (also, running SIMT code on vector ISA)
Here's where the "implementation" cost comes in (at least in our implementation; others, of course, may have more clever ways of doing this) -> If you pick "vl=3", then the vstart and vltrim calculations can be made one and the same -> If you pick "vl=6" then the vstart and vltrim calculations are not exactly equal and vltrim needs a LZC on the mask for the elements within the line followed by an adder. At SEW=8b, there can be lots of elements within a line... roger.
On Fri, Oct 16, 2020 at 6:31 PM Bill Huffman <huffman@...> wrote:
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