[libre-riscv-dev] evaluation of bit-witdh scoreboards

Jacob Lifshay programmerjake at gmail.com
Mon Dec 17 10:20:45 GMT 2018


On Mon, Dec 17, 2018, 02:12 Luke Kenneth Casson Leighton <lkcl at lkcl.net
wrote:

> Still seems like it is worth an op, to do 1 FPx4 to RGB565 per cycle.
>
Yeah, we also need one for R5G5B5A1 since that's another common 16-bit
format.

>
> Hm can we use FP16 on the pixel colours? Might be able to get 2x speed that
> way.
>
I don't think so, since the types the Vulkan spec specifies are 32-bit
floats.

Jacob


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