As title.
"The manual: http://www.keil.com/support/man/docs/lx51/lx51_ls_classinfo.htm says it's preliminary info so I guess it's all pretty new stuff"
Actually, it's said that for at least 3 years now... :-(
My PDF version of the Assembler & Utilities manual is dated 02.2001, and is is in there (on p291)
So there you go - I've been missing it for all these years!
says it's preliminary info
The manuals will stop being "preliminary" once the Google apps make it past "beta".