USSE2 32-bit floats on vector engine?

PowerVR Insider
1

It’s known, that USSE1 can process 32-bit floats only on scalar engine. However there are some words, that USSE2 can process from 2 to 4 32-bit float at the same time i.e. on vector engine. Can someone clarify this?


2

Up


3

Up


4

Hi, sorry for the lateness of reply.


You are correct, USSE1 is indeed scales, and USSE2 has a vector floating point ALU as part of its general processing hardware.

Regards,
Bob
5


Thx, Bob. Can you say more about SIMD? Does USSE2 has 128bit wide registers, that can process 4 32bit floats at a time? Or does it processes only 2 floats?
6

Hi StiX,


Sadly I can’t elaborate further.

Regards,
Bob