Hi,

Thanks.  This is on the ftp site at:

ftp://st.cs.uiuc.edu/Smalltalk/Squeak/3.8/mac

or

http://box1.squeakfoundation.org/files/3.8/mac

cheers

bruce

John M McIntosh <johnmci at smalltalkconsulting.com> wrote:
> Date: Sat, 19 Feb 2005 11:26:03 -0800
> From: John M McIntosh <johnmci at smalltalkconsulting.com>
> Subject: Mac 3.8.6b6 posted for testing
> To: The general-purpose Squeak developers list <squeak-dev at lists.squeakfoundation.org>
> reply-to: The general-purpose Squeak developers list <squeak-dev at lists.squeakfoundation.org>
> content-length: 3414
> 
> I've posted a macintosh VM 3.8.6b6 that includes a fix for a reported  
> problem of a sharp noise being played under certain conditions.
> I have also recompiled the VM under OS-9 for classic users, they should  
> confirm thing still work as expected since it's been awhile since I  
> last shipped a full revision of
> the os-9 classic VM.
> 
> I've stuck them on my idisk
> http://homepage.mac.com/johnmci/FileSharing.html
> 
> or see the following ftp directory for zip files.
> 
> ftp://www.smalltalkconsulting.com/
> 
> 
> 3.8.6b6			sqMacMIDI.c add #def so I can compile under code warrior os-9  
> again
> 				sqMacEncoding.c, sqMacEncoding.h  Minor changes so I can compile  
> user code warrior os-9 again
> 				sqMacUnixInterfaceSound.c  Fix problem with empty buffer being full  
> of junk under certain conditions, that causes a sharp sound  bite.
> 
> 3.8.6b5			Change to JMM & AR GC instrumentation patch, collect a few  
> less statistics. Also change carbon VM to use Unix/Quartz sound driver
> 				which interfaces to Core Audio stuff.
> 
> 3.8.6b4			Ensure VMMaker 3.8b2 - the VM code classes and tools for  
> building a working vm for Squeak version  > 3.8-6461. is incorporated.
> 				Add Andreas's GC improvement changes for
> 				* primitiveIsYoung: This answers the question whether an object  
> currently lives in young or in old space.
> 
> 				* primitiveIsRoot: Answers the question whether any given object is  
> currently a root for young space.
> 
> 				* primitiveRootTable: Answers a snapshot of the current root table.  
> Useful to examine the roots table if the analysis requires complex  
> other operations during which the root table might be modified itself.  
> Note that since this primitive can cause GC there is a small chance  
> that it will give an inaccurate answer.
> 
> 				* primitiveRootTableAt: Answers a single element of the root table  
> (by one-based index). This primitive can be used to quickly scan the  
> root table for certain objects.
> 
> 				* primitiveSetGCSemaphore: Indicates a semaphore (index) to be  
> signaled whenever a garbage collection occurs. I can see at least two  
> uses uses for the GC semaphore: running cleanup actions (for example  
> after full GCs occured) and dynamic parameter tuning for the GC  
> algorithm itself.
> 
> 				Add John's changes for
> 
> 				Smalltalk setGCBiasToGrowGCLimit: 16*1024*1024. "Set growth limit  
> before full GC to 16MB"
> 
> 				Smalltalk setGCBiasToGrow: 1.
> 				Set bias to grow upto GCLimit, this can avoid a problem where we  
> attempt to avoid growing but results in thousands of incremental GC  
> events as
> 				we approach a knee in a curve of space used versus the  
> growth/compaction decision.
> 
> 
> 3.8.6b3			Add in logic for become: to fix issues with changes to  
> become: logic.
> 
> 3.8.6b2			sqMacWindow.c  reduce number of lock/unlock pixel events and  
> flush no more than 91 fps, with flush check every 1/50 or 1/60 and 1/5  
> of a second. this
> 				shaves another 50% off making drawing pixels 1.3% of the time  
> originally taken.
> 
> 3.8.6b1			sqMacWindow.c, sqUIEvents.c, changed logic to flush screen  
> every 125 fps, this makes pixel level drawing complete in 2% of the  
> time originally taken.
> 
> --
> ======================================================================== 
> ===
> John M. McIntosh <johnmci at smalltalkconsulting.com> 1-800-477-2659
> Corporate Smalltalk Consulting Ltd.  http://www.smalltalkconsulting.com
> ======================================================================== 
> ===