Lack of some instruction encoding

[superboy999]

Hi, It seems new spec delete the part of Matrix Instruction Listing. But maybe some of the instruction encoding become unknown, like func4 of the configuration instruction( I don't know the excatly the mapping between func4 and m/n/k).

[superboy999]

Sorry for the bothering, here is the other question: It seems new spec define ARLEN=ROWNUMELEN without any explaination. And I remember the ROWNUM was defined as RLEN/32 in the earlier version. Could you clarify why ARLEN is now defined as ROWNUMELEN and why ROWNUM seems to have become independent of RLEN?

[xuantiematrix]

Hi, It seems new spec delete the part of Matrix Instruction Listing. But maybe some of the instruction encoding become unknown, like func4 of the configuration instruction( I don't know the excatly the mapping between func4 and m/n/k).

The instruction encoding list will be attached in the near furture. To address your confusion, the func4 are used to distinguish the different inst types like m/n/k configuration instructions.

[xuantiematrix]

In last version, the ROWNUM is tied to the RLEN, and the tile register and accumulation register have the same shape, which restricts the shape of tile register, and the accumulation register may not be fully used at different data types. The new matrix shape can be more flexible.