+sig-vector@...

I've been working up a scheme to handle vector element groups in general, with vector crypto being the first anticipated use case. This replaces the EDIV concept with a more general group concept that

Hi all, A reminder that an open meeting to draft the RISC-V V C Intrinsic API v1.0 release is going to be held on next Monday 2022/09/05 7AM (GMT -7) / 10PM (GMT +8). The planned agenda will be to hav

Hi all, As mentioned in the first RFC letter, here we want to share our draft roadmap for the formal release. The main goal of this release is to stablize the using environment of the RVV C intrinsics

Hi all, We (SiFive) are going to draft out a formal v1.0 release for the RVV C intrinsic API. Next week we are going to provide a roadmap, including time reserved for comments on what is left on the t

Community members, The Vector Extension Task Group community has completed its work and is slated to be deactivated and archived on August 15, 2022. If you believe that this decision has been made in

Hi: I am Kito from the RISC-V psABI group, we've defined a basic vector ABI, which allows function use vector registers within function, that could be used for optimize several libraries like libc, e.

Hello all, I hope you are fine, safe, and healthy. I want to know if there is any test suite or platform which can be used to run RISC-V Vector compliance tests? We, in our team, have started to work

1. Question for tail bits of mask-producing instructions. In the case of mask-producing instructions, tail elements are the bits with (vl <= bit index < VLEN).So according to riscv-v-spec-1.0, page 46

I am hearing renewed interest in adding a dot-product extension to the RISC-V Vectors. This includes everything from adding a handful of FP and Int dot-product instructions all the way to completing t

Hello! I have a question about vector segment load and stores. In table 14 we have NFIELDS from 1 to 8. In paragraphes 7.8.1-3 we have format like vlseg<nf>e<eew>.v vd, (rs1), vm vsseg<nf>e<eew>.v vs3

Hi， I have a question about masked-off bits. I am not sure what is the behavior of destination inactive masked-off bits for instructions vmsbf.m, vmsif.m, vmsof.m. Does the "xxxx" means we can fill an

Hi,all Debuggers can use abstract commands to access CSRs. When using abstract commands, debuggers need to specify the bit width of CSRs. The bit widths of vcsr and vstart are not clearly defined in V

Yes, this would be the obvious path to take. Some use cases, including maybe this one, might prefer FP traps to be horizontal into user mode. There is the old MIPS FPU pipeline trick of conservative e

Completely agree. Was very happy RISC-V did not include FPU exceptions. Jeff

While I understand that it had been decided long ago (relatively speaking) that RISC-V would not support trapping on floating-point exceptions, I am wondering if we need to revisit this. I have heard

I think from this morning, we are considering: Ordered scatters are done truly in order Strided stores that overlap (including segmented ones) will trap as illegal All other vector loads and stores do

I am working on some experiment and I need to simulate RVV r1.0. Is spike my best bet for this? All I want to start with is writing bare metal assembly, and copy some memory buffers between the sim an

However, we did discuss its merit; if it would trump the encoding dificulties, see below - there are two aspects here - a) checking array indexes are within bounds, which absent proof that the indexes

Apart from requests for more instructions, which can be handled with later extensions, there were no real substantive updates. I did notice one issue at end of public review, however. The current spec