[Libre-soc-bugs] [Bug 230] Video opcode development and discussion

[bugzilla-daemon at libre-soc.org]

https://bugs.libre-soc.org/show_bug.cgi?id=230

--- Comment #50 from cand at gmx.com ---
> Note that 1555 and 565 are both in the list of formats required by Vulkan.

I think you misread the tables, like I did at first. Only the ones with a
tickmark, cross or double-cross are required, the formats with nothing are
optional. So 5-6-5 is mandatory, 5-5-5-1 not.

> 2-10-10-10

This does not require the variable widths; as you use a 32b register and shift
out 10*3 bits, the last two are naturally handled.

I suppose the question now is whether 5-6-5 (and possible other different-width
formats required) should be hardcoded or used through the variable-width instr.

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