[Vm-dev] New Cog VMs available

[Douglas McPherson]

ARMv6 stack.v3 and stack.spur VMs updated accordingly.

Doug


> On Mar 5, 2015, at 13:22, Eliot Miranda <eliot.miranda at gmail.com> wrote:
> 
> Hi All,
> 
>     recent instability seems to have been cured.  Please find new VMs at http://www.mirandabanda.org/files/Cog/VM/VM.r3266 <http://www.mirandabanda.org/files/Cog/VM/VM.r3266>.  For Squeakers, these are close to release candidates for the upcoming 5.0 release.  I have one last modification to do with free space handling on start-up in Spur (the current VMs over-allocate free space), and maybe a minor speed-up of the LargeIntegersPlugin; other than that I intend bug fixes only.
> 
> 
> CogVM binaries as per VMMaker.oscog-eem.1085/r3266
> 
> Avoid duplication in fetching active process and scheduler in process-switch machinery.
> 
> Take advantage of endianness for simpler large integer initialization.
> 
> Simplify primitiveMakePoint. Include primitiveMethodXray to introspect on Cog state of methods.
> 
> Refactor positive32BitIntegerFor: and signed32BitIntegerFor: in the realization that these
> reduce to essentially integerObjectOf: in 64-bit Spur.  The idea is to inline if in 64-bit Spur
> but not if in the 32-bit VMs.  Add notOption: processing to allow excluding
> noInlineSigned32BitIntegerFor: et al.  Add hasSixtyFourBitImmediates to no longer assume that
> wordSize = 8 implies 64-bit immediates.
> 
> Use positiveMachineIntegerFor: in place of positive32BitIntegerFor: in some plugins.
> 
> Simplify primitiveDisplayString given isArray:.
> Simplify two B3DAcceleratorPlugin prims given topRemappableOop and isArray:
> 
> Slang:
> Changes to type inferrence/propagation and inlining to better support 64-bit Spur.
> See change log of VMMaker.oscog in 1067-1085 range for exhaustive details.
> -- 
> best,
> Eliot

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