APL+Win Version 79.6.02
Copyright (c) 2010 APLNow LLC.
All Rights Reserved
May 28, 2010

This document contains important information pertaining to APL+Win Version 10
(v79.6.02) Beta Release.  This beta will run for 30 days after it is first run.


Installation:

Place the executables, aplw_v10Beta.exe and aplwr_v10Beta.exe, in the same
folder with your current APL+Win system and make a copy of your aplw.ini and 
rename it to aplw_v10Beta.ini.  

Run aplw_v10Beta.exe to start the program.

Note: The APL+Win v10 Beta runs in Windows XP, Windows Vista and Windows 7.



APL+Win v79.6.02
----------------

1. The limitation of not being able to load some workspaces saved in an earlier
versions of APL+Win has been addressed in this release.


2. New ŒTHROW system function

New ŒTHROW function is similar to ŒERROR except it signals error natively rather
than popping calling function off ŒSI stack before signaling an error.

For example:


    ’ throw;Œelx
[1]   Œelx„'Œthrow Œdm'
[2]   :try
[3]     Œthrow'TEST ERROR'
[4]   :catchall
[5]     Œthrow Œdm
[6]   :endtry
    ’

      throw
TEST ERROR
throw[3]   Œthrow'TEST ERROR'
           ^
throw[5]   Œthrow Œdm
           ^
      throw
      ^

Note that in the code above the ŒTHROW inside the :TRY clause is caught
by the :CATCHALL clause.  Calling ŒERROR in this context would have
immediately thrown the error out of the calling function.  But instead
we trap the error in :CATCHALL clause and call ŒTHROW ŒDM there which
causes the error to be again signalled natively, on line [5] but this
time since the error is not in the :TRY context, the ŒELX handler runs.
It also calls ŒTHROW ŒDM but since it is called by ŒELX it is treated
as if ŒERROR was called and causes the error to finally be signalled
outside of the function context.


More examples are in the file "QuadThrow Examples.pdf" distributed with
this release.




APL+Win v79.6.01
----------------

This release has three major enhancements.  They are:

1. Support for Larger Workspace Size

The old maximum workspace size was approximately 1600 MB (1.4 GB).  APL+Win v10 beta 
supports larger workspace sizes; up to 2.6 GB on 32-bit machines (with 4-GT enabled) 
with a 32-bit Windows operating system and up to 3.6 GB on 64-bit machines with a 
64-bit Windows operating system.

There is a wssize command-line parameter that specifies the default workspace size 
to start APL+Win.  Without it, the default startup workspace size remains 75% of 
available virtual memory.

E.g.,

 - On Win32 this is typically 75% of 3 GB = 2.25 GB
 - On Win64 this is typically 75% of 4 GB = 3.00 GB

Important: The wsSizeLo and wsSizeHi command-line options described at the 2010 
User Conference haven't yet been implemented.  They will appear in the next beta.

Refer to http://msdn.microsoft.com/en-us/library/bb613473%28VS.85%29.aspx?ppud=4 
for information on 4-GT.


2. Faster System Performance

Scalar and array operations will run 30 to 50% faster than in prior versions of 
APL+Win.


3. Larger Arrays

In addition to larger workspaces, the limits for arrray shapes has been increased.  
This has historically been defined so that the maximum number of elements in all
array types cannot exceed the hard limit of 214748352.  The new limit is 2147483647,
which is approximately a 10-fold increase.  Note that the total object size in bytes 
cannot exceed 2GB (2147483616 bytes).

=====================================================================================


You are encouraged to try out the new enhancements in this release with and without
your application(s).  Your contribution is vital as it will ensure that we address any 
problems that are present in this release.

Being that this is a beta, you should not save any workspaces of yours that are deemed 
critical to you business without first having them backed up.  We also ask that you not 
redistribute any part of this release to others especially your customers as it is 
intended for your use only.

If you experience any problems or have any questions or comments about this release,
please report them quickly to APL2000 Technical Support at support@apl2000.com.

Thank you for testing the APL+Win v10 Beta!
 

APL2000 Technical Support
support@apl2000.com