The Virtual Execution System (VES) is a

run-time system In computer programming, a runtime system or runtime environment is a sub-system that exists both in the computer where a program is created, as well as in the computers where the program is intended to be run. The name comes from the compile t ...

of the

Common Language Infrastructure The Common Language Infrastructure (CLI) is an open specification and technical standard originally developed by Microsoft and standardized by ISO/ IEC (ISO/IEC 23271) and Ecma International (ECMA 335) that describes executable code and a ...

CLI which provides an environment for executing managed code. It provides direct support for a set of built-in data types, defines a hypothetical machine with an associated machine model and state, a set of control flow constructs, and an exception handling model. To a large extent, the purpose of the VES is to provide the support required to execute the

Common Intermediate Language Common Intermediate Language (CIL), formerly called Microsoft Intermediate Language (MSIL) or Intermediate Language (IL), is the intermediate language binary instruction set defined within the Common Language Infrastructure (CLI) specification. ...

CIL instruction set.

Implementations

The

Common Language Runtime The Common Language Runtime (CLR), the virtual machine component of Microsoft .NET Framework, manages the execution of .NET programs. Just-in-time compilation converts the managed code (compiled intermediate language code) into machine instruc ...

(CLR) implements the VES as defined in the

(CLI) standard. Other notable implementations of the CLI such as Mono and Portable.NET include their own VES implementations. The

.NET Micro Framework The .NET Micro Framework (NETMF) is a .NET Framework platform for resource-constrained devices with at least 512 kB of flash and 256 kB of random-access memory (RAM). It includes a small version of the .NET Common Language Runtime (CLR ...

includes the .NET Micro Framework Interpreter as their VES implementation.

Implementations

See also