What is machine dependent optimization in compiler design?
Machine-dependent optimization is done after the target code has been generated and when the code is transformed according to the target machine architecture. It involves CPU registers and may have absolute memory references rather than relative references.
What is machine code optimization?
The code optimization in the synthesis phase is a program transformation technique, which tries to improve the intermediate code by making it consume fewer resources (i.e. CPU, Memory) so that faster-running machine code will result.
What is machine dependent and independent code optimization?
Machine dependent optimization involves CPU registers and absolute memory references. Machine independent code optimization does not involve CPU registers or absolute memory references.
What is machine independent optimization What are the different techniques used for it?
Machine independent optimization attempts to improve the intermediate code to get a better target code. The part of the code which is transformed here does not involve any absolute memory location or any CPU registers.
Which of the following is machine dependent optimization?
Explanation: Machine dependent optimizations are: Peephole optimization which includes redundant optimization, strength reduction, flow of control.
What is machine independent and machine dependent?
Machine-dependent software is software that runs only on a specific computer. Applications that run on multiple computer architectures are called machine-independent, or cross-platform.
What is meant by machine dependent?
What do you mean by machine independency?
machine-independent A term applied to software that is not dependent on the properties of a particular machine, and can therefore be used on any machine. Such software is also described as portable.
What is machine dependent?
‘Machine dependent’ is commonly used to describe software that can run only on a specific type of hardware, such as a specific processor. It can also be used to describe film or audio media that requires specific recording and playback equipment.
What is machine dependency in programming?
Machine dependency is a software application that is designed to operate on a limited selection of computers or hardware devices. Programs with this attribute are optimized for the target hardware (they run faster), but cannot run on other architectures.
Which language is machine dependent?
Assembly language is written using short codes that suggest their meaning and are therefore easier to remember than machine language. It is machine dependent.
What is the meaning of machine dependent?
What is machine dependent with example?
Machine-dependent definition Applications that run in only one series of computers such as Intel x86 or IBM Z mainframe. Also called “hardware dependent” and “platform dependent.
What is machine-dependent with example?
Are compilers machine-dependent?
A compiler allows programmers to ignore the machine-dependent details of programming. programming skills to be machine- independent. Compilers also aid in detecting programming errors (which are all too common). Compiler techniques can also help to improve computer security.
What is meant by machine dependent language example?
For example, the number +20 may instruct one particular computer to add two numbers; the number +21 on the same system might indicate that subtraction is to be performed. Machine languages are so closely related to the structure of a particular computer that they are said to be machine dependent.
What is machine dependent programming language?
Machine languages are so closely related to the structure of a particular computer that they are said to be machine dependent. Programs written in machine language are not portable, that is, they may not be run on other computers with different machine languages.
Are compilers machine dependent?
Is basic a machine dependent language?
GW BASIC is a machine dependent language.
What is machine dependent language?
What is code optimization in compiler design?
Code optimization in compiler design is grouped into two major optimization techniques. These are machine-independent and machine-dependent. The former is applied to intermediate code while the latter is applied to object code.
What is machine-dependent optimization?
Machine-dependent optimizations focus on the translation of code in a way that fully exploits the specifications of the underlying machine. It involves CPU registers, absolute memory, and references. Peephole optimizations.
How does the compiler modify the intermediate code?
After generating intermediate code, the compiler can modify the intermediate code by address calculations and improving loops. While producing the target machine code, the compiler can make use of memory hierarchy and CPU registers. Optimization can be categorized broadly into two types : machine independent and machine dependent.
What is the difference between optimization of intermediate code and target code?
Optimizing the intermediate code involves changing the address calculations and transforming the procedure calls involved. Here compiler is the actor. Optimizing the target code is done by the compiler. Usage of registers,select and move instructions is part of optimization involved in the target code.