[squeak-dev] [ANN] OpenSmalltalk VM 2022 released (tag 202205110711)
eliot.miranda at gmail.com
Fri May 13 23:44:01 UTC 2022
On Wed, May 11, 2022 at 8:58 AM Marcel Taeumel <marcel.taeumel at hpi.de>
> Hi all --
> Please note that - from hereon - our ongoing discussion about backwards
> compatibility and missing DPI-awaress in older images can still be resolved
> in various ways:
> a) Tag some older OSVM version as "good enough" where the prior -metal
> platform code did provide a "low resolution" mode -- by accident -- to
> accommodate macOS 12.x and Retina displays
> b) Implement a cross-platform "low resolution" mode in the OSVM, where
> that mode might be chosen through an extra bit in the image header; then
> make another OSVM release
This is my preference because it means the new VM can continue to be used
with older images, which is, I hope we agree, desirable.
> c) Rely on platform tools to workaround older images being unaware of
> high-resolution displays and thus appearing quite tiny; i.e., the global
> macOS 12 magnifier still works
> Am 11.05.2022 12:03:49 schrieb Marcel Taeumel <marcel.taeumel at hpi.de>:
> Hi all!
> We just released the next version of the OpenSmalltalk VM.
> Please find the binaries here:
> (see VMMaker.oscog-mt.3184 and update.oscog-mt.6.mcm)
> That version will be used in the upcoming Squeak 6.0 and also updated
> bundles for Squeak 5.3. And probably in upcoming Cuis releases. :-)
> Here is an attempt of a change log (since 2020):
> - Adds ARMv8/Aarch64/ARM64 JIT incl. support for Apple M1
> - Adds "fast C primitives" via #FastCPrimitiveFlag
> - Adds support for catching exceptions in FFI callouts
> - Adds #primitiveScreenScaleFactor (for DPI-aware images)
> - Adds primitives 568 and 578 complementing 88 (primitiveSuspend)
> - Adds #primitiveMultipleBytecodeSetsActive to update image format for
> - Adds VectorEnginePlugin
> - Fixes regressions in ARMv6 support
> - Fixes performance regressions of -metal and -opengl backends on macOS
> - Fixes -core-graphics backend on macOS
> - Fixes Retina scaling on macOS, i.e., support "backing scale factor"
> - Fixes primitive 126 to fail on graphics backends w/o composition buffer
> - Fixes regressions in vm-display-fbdev on Linux
> - Fixes time sync (e.g., for DST) on Windows
> - Fixes UDP binding on Windows
> I am sure that I forgot something especially in plugin code. Please expand
> on this.
> BIG THANKS to everybody who has worked on this release! Personally, I
> would like
> to thank Eliot, who is a great software architect who keeps on making the
> faster with every commit. Thank you!
> Marcel (on behalf of the OSVM core dev team)
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