The Io parser intercepts a set of operators defined by the interpreter, and translates them to method calls.

The tools include a semantic interpreter WOCADI which translates natural language expressions ( phrases, sentences, texts ) into formal MultiNet expressions, a workbench MWR + for the knowledge engineer ( comprising modules for automatic knowledge acquisition and reasoning ), and a workbench LIA + for the computer lexicographer supporting the creation of large semantically based computational lexica.

Programs in interpreted languages are not translated to machine code ; however, their interpreter ( which may be seen as a processor executing the higher-level program ) often is.

To propagate the language rapidly, a compiler " porting kit " was created in Zurich that included a compiler that generated code for a " virtual " stack machine, i. e., code that lends itself to reasonably efficient interpretation ), along with an interpreter for that code – the Pascal-P system.

Compared to direct translation into native machine code, a two-stage approach involving translation into p-code and execution by an interpreter or just-in-time compiler offers several advantages.

; Portability: It is much easier to write a small p-code interpreter for a new machine than it is to modify a compiler to generate native code for the same machine.

The code may be processed by an interpreter, or may simply be a sequence of machine code call instructions.

Note also that while bytecodes are nominally machine-independent, the format and value of the pointers in threads generally depend on the target machine which is executing the interpreter.

The loop is simple, so is duplicated in each handler, removing from the list of machine instructions needed to execute each interpreter instruction.

This is perhaps the simplest and fastest interpreter or virtual machine.

Source programs are compiled ahead of time and stored as machine independent code, which is then linked at run-time and executed by an interpreter and / or compiler ( for JIT systems ).

However, the portability of interpreted source code is dependent on the target machine actually having a suitable interpreter.

The compiled code in this case is machine code for a virtual machine, which is implemented not in hardware, but in the bytecode interpreter.

Machine code intended for one hardware architecture can be run on another using a virtual machine, which is essentially an interpreter.

* Sandboxing: An interpreter or virtual machine is not compelled to actually execute all the instructions the source code it is processing.

An abstract machine implemented as a software simulation, or for which an interpreter exists, is called a virtual machine.

In computer science, a compiler-compiler or compiler generator is a tool that creates a parser, interpreter, or compiler from some form of formal description of a language and machine.

Bytecode may often be either directly executed on a virtual machine ( i. e. interpreter ), or it may be further compiled into machine code for better performance.

* GNU Guile, an interpreter / virtual machine for the Scheme programming language

The IBM 550 numerical interpreter was the first commercial machine made by IBM that read numerical data punched on cards and printed it across the top of each card.

A program called an interpreter reads each program line following the program flow, converts it to machine code, and executes it ; the machine code is then discarded, to be interpreted anew if the line is executed again.

How to design and implement a stripped-down version of an interpreter for the BASIC language was covered in articles by Allison in the first three quarterly issues of the People's Computer Company newsletter published in 1975 and implementations with source code published in Dr. Dobb's Journal of Tiny BASIC Calisthenics & Orthodontia: Running Light without Overbyte.

Software includes all the various forms and roles that digitally stored data may have and play in a computer ( or similar system ), regardless of whether the data is used as code for a CPU, or other interpreter, or whether it represents other kinds of information.

SBCL does not use an interpreter by default ; all expressions are compiled to native code unless the user switches the interpreter on.

* The Binder binds the Euphoria source code to the interpreter to create an executable.

In this case, a compiler may output some form of bytecode or threaded code, which is then executed by a bytecode interpreter.

Machine code should not be confused with so-called " bytecode ", which is executed by an interpreter.

; Debugging: When the p-code is interpreted, the interpreter can apply additional runtime checks that are difficult to implement with native code.

Despite its advantages, the concept of implementing the game logic in a separate scripting language and writing an interpreter for it was soon dropped ( even by John Carmack who had implemented this concept ) because of the overall inflexibility of an interpreted language, the increasingly complex game logic and the fact that the game logic could be packaged into a native Dynamic link library whose source code could be released to the mod community.

In 1999 when id Software released the code from Quake's engine under the GPL, the workings of the bytecode interpreter were examined and new QuakeC compilers were released, such as J. P. Grossman's qccx and a new version of FrikQCC.

Implementations of programming languages that offer interactive evaluation of source code ( using an interpreter or an incremental compiler ) present identifiers at runtime, sometimes even as first-class objects that can be freely manipulated and evaluated.

It is also the name of the interpreter that executes Metafont code, generating the bitmap fonts that can be embedded into e. g. PostScript.

The GIL is a mutual exclusion lock held by the interpreter that can prevent the interpreter from concurrently interpreting the applications code on two or more threads at the same time, which effectively limits the concurrency on multiple core systems ( mostly for processor-bound threads, and not much for network-bound ones ).

The Forth system on the Organiser I itself had a compiler to intermediate code, interpreter and runtime, and had a number of unusual design features one being that it could interpret-that is, read and execute-Forth intermediate code directly in place on a DATAPAK, rather than needing to copy it into precious RAM first, despite the DATAPAKs not being execute-in-place memory-mapped.

Informally, w represents a " script " for the computable function f, and F represents an " interpreter " that parses the script as a prefix of its input and then executes it on the remainder of input.

An interpreter executes it on each new target hardware.

In computer science, an interpreter normally means a computer program that executes, i. e. performs, instructions written in a programming language.

# explicitly executes stored precompiled code made by a compiler which is part of the interpreter system

A combination of both solutions is also increasingly common: a compiler can translate the source code into some intermediate form ( often called bytecode ), which is then passed to an interpreter which executes it.

This virtual machine implementation is called an interpreter, because it reads in the intermediate code instructions one by one and after each read executes the equivalent machine code sequences ( the interpretation ) of the read intermediate instruction directly.

It has two versions of compiler which either produce 1 ) intermediate byte code for an interpreter ( known as the rapid development system ), or 2 ) C Programming Language code for compilation with a C compiler into machine-code ( which executes faster, but compiles slower, and executables are bigger ).

A system that executes a program is called an interpreter of the program.

The interpreter executes the chosen agenda items by applying the corresponding base rules.

An interpreter executes HLA CTL statements during the compilation of an HLA source file ( hence the name " compile-time language ").

Events are executed as Ruby and RGSS code which can be read through an interpreter in the program's database which then executes the code.