[Vm-dev] Primitive replaceFrom:to:with:startingAt: in the JIT

tim Rowledge tim at rowledge.org
Wed Dec 27 23:03:58 UTC 2017

> On 27-12-2017, at 2:56 PM, Clément Bera <bera.clement at gmail.com> wrote:
> Assembling a word when reads are not aligned with the writes seemed tedious - not sure if that's the best time invested/speed-up ratio. One could experiment.
It’s just an  8bpp bitblt on a single line. We kinda-sorta have code for that lying around.

How about handling any simple cases you can come up with and failing to the (usually) intrinsic memcpy() ? Take advantage of those 4 people’s months of work!

tim Rowledge; tim at rowledge.org; http://www.rowledge.org/tim
All programmers are playwrights and all computers are lousy actors.

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