TI Extended BASIC was a dialect of BASIC for the Texas Instruments TI-99/4A home computer.
TI produced an Extended BASIC cartridge that greatly enhanced the functionality accessible to TI BASIC users. Sprites could be generated and set up to move automatically with simple one-line commands. Custom 'CALL' subprograms, access to memory expansion for larger programs, multiple statement lines (with the statement separator ::), boolean logic in IF statements, assembly language linkage, as well as the ability to display text at any location on the screen, were all added while largely retaining compatibility with TI BASIC.
TI Extended BASIC has several statements not present in TI BASIC:
ACCEPT, DISPLAY, IMAGE, LINPUT, ON BREAK, ON ERROR, ON WARNING, SUB, SUBEND, SUBEXIT.
Catalog number PHM 3026.