Re: [PATCH v2 042/101] target/arm: Tighten USDOT (vectors) decode

[Richard Henderson]

On 6/24/25 03:13, Peter Maydell wrote:

-USDOT_zzzz      01000100 .. 0 ..... 011 110 ..... .....  @rda_rn_rm
+USDOT_zzzz_4s   01000100 10 0 ..... 011 110 ..... .....  @rda_rn_rm_e0

This sets esz to 0, when it used to be 2. The helper function
looks like it looks at the simd_oprsz() so I think this is
wrong as well as inconsistent with the esz we use for _4s
insns in the previous patch.

oprsz == vl.

esz is unused by the trans_* function after the change.
But I agree it's confusing to set esz=0.


r~