[Vm-dev] Re: [squeak-dev] New Cog VMs available

Luciano Notarfrancesco luchiano at gmail.com
Tue Jul 12 20:24:58 UTC 2016

On Sat, Apr 23, 2016 at 7:48 PM, Eliot Miranda <eliot.miranda at gmail.com>

> Plugins:
> Upgrade LargeIntegersPlugin to v2.0
> LargeInteger primitives now deal with 32-bits digits.  No change to image
> code.
> Memory is 8 bytes aligned on Spur. When storing 32/64 bits large
> integers values, allways fill the eight bytes whatever the
> effectivily used size, rather than bother with dissertion of size.
> Generate integer type checking as C macros rather than direct/indirect
> interpreterProxy function call in plugins. This, and 32-bit accessing mean
> singificantly faster large integer arithmetic.
The legs are in the architecture endianness?
What are the reasons to not use GMP? Could we use it if was already
installed in the host platform? It seems to me that it would be quite
straight forward to call to the GMP low-level API from the
LargeIntegersPlugin, without making any changes in the image.
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