...Kilgard
Mark graduated with B.A. in Computer Science from Rice University and is a Member of the Technical Staff at Silicon Graphics. He can be reached by electronic mail addressed to mjk@sgi.com

...values
While 64-bit pointers are manipulated as 64-bit quantities, in the foreseeable future no machine will use this entire range which could address 16 billion gigabytes of data.

...values.
The sufficiency of 32-bit sizes for the X11 protocol is contrasted with the need to upgrade the Network File System (NFS) protocol to support 64-bit file systems generally associated with 64-bit operating systems. NFS version 3 provides support for huge files in excess of two gigabytes (the limit for NFS version 2). While huge file sizes can surpass 32-bit limits justifying 64-bit protocols like NFS version 3, window system operations are unlikely to ever exceed the restrictions of 32-bit data value ranges.

...release.
X11R5 included code for Cray's particular 64-bit architecture, but the support for the LP64 data type model was not complete until X11R6.

...data.
The SERVER_OVERLAY_VISUALS is used as a convention adopted by SGI, HP, and other X vendors to encode information about X server overlay and underlay visuals as explained in the July/August '93 issue of The X Journal.

Mark Kilgard
Sat Dec 30 11:52:07 PST 1995