What is Assembler, Compiler, and interpreter
Hello friends, in this article we are going to learn about what is assembler. what is a compiler? what is an interpreter? And What is the difference between assembler, compiler, and interpreter?
So let’s learn everything one by one.
What is Assembler
Assembler is used to convert programs written in assembly language to machine language. The assembler takes the source code as input which is written in assembly language and converts it into machine level language or machine language. GAS, GNU, etc. are some examples of assemblers.
Features of Assembler
- Assembler converts the source code into machine code and then, this machine code is executed by the computer.
- Assembler first converts the source code into an object, then it converts the object code into Machine Language with the linker program.
- The output of the assembler consists of relocatable machine code that is generated by an assembler represented by binary code.
- The assembler takes the code written in the assembly language as input.
- Assembler converts assembly language into machine language.
- The assembler does not convert the entire code into machine language at once.
- The assembler is less intelligent than the compiler.
- The assembler produces two phases of the given input, the first phase, and the second phase.
- Debugging is difficult in assembler.
- GAS is an example of a GNU assembler.
What is Compiler?
Compiler is a language translator software that reads programs written in a high-level language such as C Language, C ++ Language, C #, Java, etc., and converts it into machine code or a low-level language.
In simple words, compilers are software that transforms programs written in a high-level language, that is called source code, into machine code (0’s and 1’s), or low-level language.
The compiler converts the source code into machine code when there is no error in the source code. If there is an error in the source code, the compiler will not convert the source code into machine code without correcting that error.
Compiler is much more intelligent than the assembler. it checks all types of limits, ranges, errors, etc.
But when the compiler runs, then it uses a large part of the memory and the compiler works very slowly because it checks the entire program first and then Translates into machine code (0’s and 1’s) or low-level language if there is no error in the program.
Examples – C, C ++, Java Compilers |
Features of Compiler
- The compiler converts the program code written in high level language into machine language and then the program runs on the computer.
- The compiler scans the entire program before translating the program into machine language and converts the program to machine language only if there is no error.
- The compiler takes the entire source code as input.
- In the case of compiler, object code is generated.
- The compiler takes much less time in execution than the interpreter.
- Through compiler, the code written in the following programming language is converted into machine language -: C, COBOL, C #, C ++, etc.
- The compiler requires much more memory than the interpreter.
- If there is any modification in the program, then the entire program has to be recompiled.
- Compiler is much faster than the Interpreter.
- After compiling the program, there is no need to compile it again and again.
- If an error occurs in the program, the compiler provides a list of errors after compiling the program.
- The compiler converts that program into machine code only after correcting the error.
- Debugging in the compiler is a bit slow because the compiler compiles the entire program first and then displays it when there is an error.
What is Interpreter
Interpreter is a translator that translates and runs the entire statement of a program written in the High-Level Language.
The interpreter does not convert the entire program into machine code simultaneously. It will first convert a line of the program to machine language and run or execute it. Then the second and second to third line of the program will be converted into machine language.
This will work as long as there is no error in any of the lines of that program. If an error is found in any line of the program, then the interpreter will not translate and run any further line when the line containing the error is not corrected.
Interpreter is used to convert programs written in languages like Python, and Perl to machine language or binary language.
Features of Interpreter
- The interpreter takes the source code which is written in the high-level language and first converts it into intermediate code and then converts that intermediate code into machine language. This intermediate code is similar to the assembler code.
- The interpreter takes the source code and converts it to line by line in machine code.
- The interpreter takes a single instruction as input and converts it into machine code.
- In the case of an interpreter, any kind of object code is not generated.
- The interpreter program takes longer to execute than the compiler.
- Interpreter is used to convert code written in the language of Python, Perl, VB, PostScript, LISP etc. into machine language.
- Interpreter requires much less memory than the compiler.
- If there is any modification in the program in the interpreter, then the entire program does not have to be recompiled.
- The interpreter is much slower than the compiler.
- The interpreter has to scan and translate each time when executing of program.
- If an error occurs in any line of the program, then the interpreter stops its work and starts its work again only after that error is corrected.
- The number of times the program executes, the interpreter translates the machine code by checking every line of the program.
- Interpreter is good enough for fast debugging programs.
Friends, by this time you must have understood that what is assembler? what is compiler? , And what is an interpreter?
Let us now see what is the difference between assembler and compiler. What is the difference between an assembler and an interpreter? And what is the difference between compiler and interpreter?
Difference Between Assembler And Compiler
#1. The main difference between assembler and compiler is that the assembler generates relocatable machine code while the compiler generates assembly code and some compilers can also generate directly executable code.
#2. Assembler takes assembly code as input and compiler take preprocessed code generated by Preprocessor as input.
#3. Compilation takes place in two stages which are analysis phase and synthesis phase. In the analysis phase, input goes through lexical analyzer, syntax analyzer, semantic analyzer, while synthesis analysis is through intermediate code generator, code optimizer, code generator. On the other hand, the assembler takes the input in two steps. The first stage detects the addresses and in the second phase the assembly code translates to binary code.
#4. The assembly code generated by the compiler is a mnemonic version of the machine code. However, the relocatable machine code generated by the assembler is a binary relocatable code.
#5. Assembler converts assembly language code into machine language and Compiler converts code written in high level language to machine language.
#6. Assembler does not convert all code into machine language in one go. Whereas the compiler converts the entire code into machine language in one go.
#7. Assembler takes assembly level code as input, Compiler takes source code (code written in high level language) as input.
#8. Assembler is intelligent whereas compiler is more intelligent than the assembler.
#9. Assembler is used for: GAS, GNU | The code written in the following languages is compiled through the compiler -: C, C ++, Java, C #, etc.
#10. Following are the examples of assembler -: One pass assemblers, Load-and-go assemblers and Following are examples of compilers. Cross-compiler, Bootstrap compiler, De-compiler, Source-to-source compiler
Difference between Assembler and Interpreter
#1. Assembler converts code taken in assembly language to machine language. Whereas the interpreter converts the code taken in high level language into machine language.
#2. The program for the assembler is written for particular hardware, while the program for the interpreter is written for particular language.
#3. The assembler translates the entire program before running, and the interpreter translates the program instructions Line by Line.
#4. The assembler does not require much memory while the interpreter requires more memory.
#5. Assembler is used for: The code written in the following languages is intercepted via GAS, GNU and Interpreter are used PHP, Python, Perl, Ruby. Etc.
Difference Between Compiler And Interpreter
#1. The compiler converts program code written in high level language into machine code and then executes it. Whereas the interpreter converts the source code into intermediate code and then converts that intermediate code into machine code.
#2. The compiler takes less time to execute. Whereas the interpreter takes longer for program execution than the compiler.
#3. The compiler displays all the errors after compilation, on the other hand, the Interpreter displays the errors of each line one by one.
#4. Compiler translation is based on the linking-loading model, while Interpreter is based on the interpretation method.
#5. The compiler takes the entire program while the Interpreter takes a line of code.
#6. In the case of compiler, object code is generated. In the case of the interpreter, no object code of any kind is generated.
#7. The compiler needs more memory and the interpreter requires much less memory than the compiler.
#8. Debugging in the compiler is a bit slow and debugging in the interpreter is fast.
#9. The compiler is very fast. While the interpreter is much slower than the compiler.
#10. After compiling the program in the compiler, there is no need to compile it again and again. Whereas after compiling the program in the interpreter, it needs to be compiled again and again.
In the compiler, if there is any modification in the program, then the entire program has to be recompiled. Whereas, if there is any modification in the program in the interpreter, then the entire program does not have to be recompiled.
Through the compiler, the code written in the following programming language is converted into machine language -: C, COBOL, C #, C ++, etc. Used the Interpreter to convert code written in machine language to Python, Perl, VB, PostScript, LISP, etc.
Conclusion -:
Friends, after reading this here, you must have understood what is assembler. What are compilers? And what is an interpreter? And what is the difference between assembler, compiler, and interpreter?
Let’s see a brief description of what we read so far -:
- The assembler, compiler, and interpreter all convert the program written by the programmer to the machine language or binary language that is understood by the machine so that the machine (Computer) can execute the instruction given by the program.
- Assembler converts programs written in assembly language into machine code and both compiler and interpreter convert programs written in high level language into machine code.
So friends today we learned what is assembler. what is compiler? And what is an interpreter? And why are they used?
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