A macro processor is
a program that copies a stream of text from one place to another
, making a systematic set of replacements as it does so. Macro processors are often embedded in other programs, such as assemblers and compilers. Sometimes they are standalone programs that can be used to process any kind of text.
What is the use of macros?
If you have tasks in Microsoft Excel that you do repeatedly, you can record a
macro to automate those tasks
. A macro is an action or a set of actions that you can run as many times as you want. When you create a macro, you are recording your mouse clicks and keystrokes.
What are the features of macro processor?
- Macro represents a group of commonly used statements in the source programming language.
- Macro Processor replaces each macro instruction with the corresponding group of source language statements.
What are the advantages of a general purpose macro processor?
–
The speed of the execution of the program
is the major advantage of using a macro. – It saves a lot of time that is spent by the compiler for invoking / calling the functions. – It reduces the length of the program.
What is use of macros in system software?
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.)
What is macro call?
A macro call
consists of a name optionally followed by an actual parameter list
. The number of parameters in the actual parameter list must be the same as the number of formal parameters specified in the definition of the macro. … The two forms may be mixed within the same parameter list.
What is the difference between micro and macro processor?
Microprocessor is a hardware device found inside the CPU but macroprocessor is a set of programs. Microprocessor can perform arithmetic and logical functions but a macroprocessor
can also perform and scanning tasks
.
What are the advantages of macro?
- Macros hold the details of an operation in a module that can be used “as if” it were a single instruction.
- A frequently used sequence of instructions can be defined as a macro. …
- Macros are used to build up complex operations out of simpler operations.
- Libraries of useful macros can be created.
What is an example of a macro?
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.
Why are macros needed?
Macro counting
helps you understand where those calories are coming from and how they affect your body
. It also helps you understand that not all calories are created equal. For example, let’s say you have a calorie goal of 2,000 a day. One gram of protein is 4 calories.
What is macro process?
A macro-process is
a mid-level collection of processes
. They are often the major activities of organizational functions within the enterprise and can be a collection of micro-processes that may also receive inputs from other macro-processes. … A macro-process is a mid-level collection of processes.
What does a macro definition consists of?
Every macro definition consists of a
macro definition header statement (MACRO)
, a macro instruction prototype statement, one or more assembler language statements, and a macro definition trailer statement (MEND), as shown in Figure 1. Figure 1.
Which of the following is the disadvantages of using macros?
Disadvantage: Macros and
inline functions increased the size of executable code
. Expressions passed as arguments to inline functions are evaluated only once while _expression passed as argument to inline functions are evaluated more than once.
What is difference between macro and function?
| Macro Function | Macro is Preprocessed Function is Compiled | No Type Checking is done in Macro Type Checking is Done in Function |
|---|
What is the difference between procedure and macro?
The main difference between Macro and Procedure is that the Macro is used for a small number of instructions;
less than ten instructions
, but Procedure is used for a large number of instructions; higher than ten instructions.
What a macro call leads to?
A macro call leads to
macro expansion
. During macro expansion, the macro statement is replaced by sequence of assembly statements. … After macro expansion, the whole code would appear like this.
