
About
Tatung's own reference manual for the BASIC supplied with the Einstein, TATUNG/Xtal BASIC 4, written by Crystal Research. Its introduction says that "TATUNG/Xtal BASIC 4 is based upon Xtal BASIC 3.0 which has been extensively enhanced". The manual is by Alan Stancliffe, edited by R.M. Clarke, first edition 1984, copyright Tatung (UK) Ltd, ISBN 1-85086-003-3, with thanks to Crystal Research Limited of Torquay.
It has an alphabetical entry for every keyword, and covers commands, syntax, functions, graphics, sprites, sound, file handling and system interfacing. It says "BASIC 4" throughout and gives no point release; the version on the Einstein's System Master is 4.2.
This is not a BBC BASIC manual, although the file once carried that name and this page's web address still does. For BBC BASIC, see the BBC Basic Manual (Z80). Our Xtal BASIC course is written against this manual, and our guide BASIC on the Einstein: Which Version Is Which explains the Einstein's BASICs and their manuals.