I noticed that as well, and welcomed it - it loads perceptibly faster too.

I think they stopped using some long "private range" UTF-8 characters and 
switched to shorter "private range" ones, which may have reduced the actual 
byte count.  Some private range UTF-8 characters require 4 bytes to express, 
and I noticed that the same glyphs that were in the longest private range in 
the -9 edition are now shorter 3-byte private range characters, like the 
left-pointing arrow in the Appendix B tables which in the -9 edition were 
"\xF4\x80\x81\x89" are "\xEF\x81\xA6" in the -10 edition.  Other such character 
substitutions could reduce total size by quite a lot.

Peter.

-----Original Message-----
From: IBM Mainframe Assembler List [mailto:[email protected]] On 
Behalf Of Paul Gilmartin
Sent: Thursday, October 29, 2015 9:18 AM
To: [email protected]
Subject: SA22-7832-10.pdf

I just downloaded the latest Principles of Operation.  Surprisingly,
the PDF is less than half the size of its predecessor.  Have I
missed something, or has a compression technique been improved?

    525 $ cksum SA22-7832-09.pdf SA22-7832-10.pdf
    3837572421 38635015 SA22-7832-09.pdf
    4230958100 15180376 SA22-7832-10.pdf

-- gil

This message and any attachments are intended only for the use of the addressee 
and may contain information that is privileged and confidential. If the reader 
of the message is not the intended recipient or an authorized representative of 
the intended recipient, you are hereby notified that any dissemination of this 
communication is strictly prohibited. If you have received this communication 
in error, please notify us immediately by e-mail and delete the message and any 
attachments from your system.

Reply via email to