What are the features of macro facility?

What are the features of macro facility?

Natural ISPF provides a macro feature that allows you to use the Natural language to generate text of any kind. In a process known as macro expansion, text is generated, which can consist of substituting variables, repeating blocks, generating blocks conditionally, even performing screen or file I/Os.

What is macro and its features?

A macro (which stands for “macroinstruction”) is a programmable pattern which translates a certain sequence of input into a preset sequence of output. Macros can make tasks less repetitive by representing a complicated sequence of keystrokes, mouse movements, commands, or other types of input.

What is macro facility?

A macro facility is an add-on piece of system software, a convenience for the programmer, to facilitate production of multiple lines of commonly occurring code via single macro calls embedded in the programmer’s assembly program.

What is macro explain?

A macro is an automated input sequence that imitates keystrokes or mouse actions. A macro is typically used to replace a repetitive series of keyboard and mouse actions and used often in spreadsheets and word processing applications like MS Excel and MS Word. The file extension of a macro is commonly .

What are the advantages of macro facility?

Advantages of Macros

• 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 advanced macro facilities?

Advanced macro facilities are aimed at supporting semantic expansion. These facilities can be grouped into : a) Facilities for alteration of flow of control during expansion. b) Expansion Time Variables. c) Attributes of parameters.

What is a macro class 10?

A macro is an automated input sequence that imitates keystrokes or mouse actions. A macro is typically used to replace a repetitive series of keyboard and mouse actions and are common in spreadsheet and word processing applications like MS Excel and MS Word.

What is macro explain the types of macro?

A macro is a segment of code which is replaced by the value of macro. Macro is defined by #define directive. There are two types of macros: Object-like Macros. Function-like Macros.

What is macro explain macro definition and call?

Macro definition. HLASM Language Reference. SC26-4940-06. A macro definition is a named sequence of statements you can call with a macro instruction. When it is called, the assembler processes and normally generates assembler language statements from the definition into the source module.

What is macro within macro?

Just type the word Call then space, then type the name of the macro to be called (run). The example below shows how to call Macro2 from Macro1. It’s important to note that the two macros DO NOT run at the same time. You can leave the word Call out, and just type in the macro name.

What are the advantages and disadvantages of macros?

The advantage of macro is that it reduces the time taken for control transfer as in the case of function. The disadvantage of it is here the entire code is substituted so the program becomes lengthy if a macro is called several times.

Why macro is used in place of function?

Speed versus size The main benefit of using macros is faster execution time. During preprocessing, a macro is expanded (replaced by its definition) inline each time it is used. A function definition occurs only once regardless of how many times it is called.