Meaning of BOUND in English
Array Index Bound Check (80188+)
Array index in source register is checked against upper and lower bounds in memory source.
The first word located at "limit" is the lower boundary and the word at "limit+2" is the upper array bound.
Interrupt 5 occurs if the source value is less than or higher than the source.
Code analysis English vocabulary. Английский словарь анализа кода. 2012