What is a macro instruction explain?

A macro instruction is a request to the assembler program to process a predefined sequence of instructions called a macro definition. From this definition, the assembler generates machine and assembler instructions, which it then processes as if they were part of the original input in the source module.

What are macro instructions features?

Advanced Features of Macro Instructions

  • The use of concatenation to generate type–specific instructions.
  • Some standard system variable symbols.
  • The use of one system variable symbol to solve the branch problem.
  • Conditional assembly.
  • The use of conditional assembly as a help in writing STKPOP.

What do you mean by micro and macro instructions?

macro. Simply put, micro refers to small things and macro refers to big things. Each of these terms appears in a wide variety of contexts and refers to a vast number of concepts, but if you remember this simple rule, you will generally be able to remember which is which.

What is macro and example?

Macro is defined as something that covers a large amount, or is large in size. An example of macro is the study of the key driving aspects of an economy; macro economics. An example of macro is a very close up photograph of an ant; a macro photograph.

What is macro instruction in computer architecture?

A macro instruction is a group of programming instructions that have been compressed into a simpler form and appear as a single instruction. When used, a macro expands from its compressed form into its actual instruction details.

What is macro instruction arguments?

The first sequence performs an operation using DATA1 as operand; the second perform using DATA2. They can be considered to perform the same operation with a variable parameter or argument. Such a parameter is called a macro instruction argument, or dummy argument.

What is difference between micro and macro?

The basic difference between “macro” and “micro” is micro is variations, relationships, or characteristics at a smaller scale or proportion whereas “macro” is a variation or relationship or characteristics of a larger proportion or scale.

What is macro command?

A macro is a series of commands and instructions that you group together as a single command to accomplish a task automatically. Newer versionsOffice 2007. Word for the web. To save time on tasks you do often, bundle the steps into a macro. First, you record the macro.

What programming language are macro instructions written?

assembler language
Macro instructions were first used in the assembler language rather than a higher-level programming language.

What is macros in assembly language?

• An assembly language macro is a template whose format. represents a pattern of 0 or more assembly language statements that might be common to multiple programs. • For this purpose, a macro language is used to provide a syntax for. defining macros.

What is macro in system programming?

Macros are used to make a sequence of computing instructions available to the programmer as a single program statement, making the programming task less tedious and less error-prone. (Thus, they are called “macros” because a “big” block of code can be expanded from a “small” sequence of characters.)