Conditional Assembly Language

Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. A Conditional Assembly Language is that part of an Assembly Language used to write macros.The conditional assembler is not restricted to generating assembler code and was in fact used by IBM in the 1970's onwards to generate COBOL or PL/1 statements for compiling into CICS application programs. An assembly language is a low-level programming language for computers, microprocessors, microcontrollers, and other integrated circuits. It implements a symbolic representation of the binary machine codes and other constants needed to program a particular CPU architecture. This representation is usually defined by the hardware manufacturer, and is based on mnemonics that symbolize processing steps (instructions), processor registers, memory locations, and other language features. An assembly language is thus specific to a certain physical (or virtual) computer architecture. This is in contrast to most high-level languages, which are ideally portable.