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For completing all the tasks, an assembler needs some hints from the programmer, i.e. the required storage for a particular constant or a variable, logical names of the segments, types of the different routines and modules, end of file, etc. These types of hints are given to the assembler using some predefined alphabetical strings called assembler directives, which help the assembler to correctly understand the assembly language programs to prepare the codes.
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What do you mean by directives?
For completing all the tasks, an assembler needs some hints from the programmer, i.e. the required storage for a particular constant or a variable, logical names of the segments, types of the different routines and modules, end of file, etc. These types of hints are given to the assembler using some predefined alphabetical strings called assembler directives, which help the assembler to correctly understand the assembly language programs to prepare the codes.
What is psuedocode used for?
Assembler directives are also known as pseudocode.It is instruction to assembler regarding the program to be assembled. For example ORG 4000 is an assembler directive which tells the assembler that program is stored from location 4000.
What are the disadvantages of writing programs with 'in-line assembler' directives?
The simple answer is that the resulting program is not portable.
Assembler directives in microprocessor?
Manual coding of 8086 is difficult hence we use a assembler or a compiler. Note that the microprocessor should be able to interpret your discussions via the program. Suppose if the instruction corresponds to word(16 bits), we use assembler directive WORD PTR, but when assembler is contacting the processor it sets a bit called 'w' indicating its a byte operation.
What does advance directives mean?
what does advance directives mean
What do you mean by directive?
For completing all the tasks, an assembler needs some hints from the programmer, i.e. the required storage for a particular constant or a variable, logical names of the segments, types of the different routines and modules, end of file, etc. These types of hints are given to the assembler using some predefined alphabetical strings called assembler directives, which help the assembler to correctly understand the assembly language programs to prepare the codes.
What are Different types of assembly language statements?
The three types of assembly language are: 1. Imperative: indicates an action to be performed. 2. Declaration 3. Assembler Directives
Where can you get an assembler?
One well known and good assembler is NASM. (Netwide ASseMbler). This can be found at http://nasm.sf.net
What is the Difference between cross assembler and resident assembler?
An assembler which runs on a computer for which it produces object codes
What is an absolute assembler?
An absolute assembler is a computing term for an assembler which generates code which uses only absolute addresses.
What are examples of assembler?
There are several examples of assemblers: GAS - the GNU Assembler MASM - Microsoft Macro Assembler NASM - Netwide Assembler The assembler is the program which converts assembly code into machine code - a necessary step to prepare a program for execution.
What is a meta assembler?
Meta-assembler is a program that accepts the syntactic and semantic description of an assembly language, and generates an assembler for that language.
