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This is a list of the instructions that make up the Java bytecode, an abstract machine language that is ultimately executed by the Java virtual machine. [1] The Java bytecode is generated from languages running on the Java Platform , most notably the Java programming language .
The JVM is both a stack machine and a register machine. Each frame for a method call has an "operand stack" and an array of "local variables". [ 5 ] : 2.6 [ 2 ] The operand stack is used for passing operands to computations and for receiving the return value of a called method, while local variables serve the same purpose as registers and are ...
Each frame provides an "operand stack" and an array of "local variables". The operand stack is used for operands to run computations and for receiving the return value of a called method, while local variables serve the same purpose as registers and are also used to pass method arguments. Thus, the JVM is both a stack machine and a register ...
On the other hand, the advantages of a stack-machine byte-code (such as the standard JVM byte-code) include an easily implemented interpreter. Most commercial JVMs in late 2005 use a mixture of byte-code interpretation and byte-code just-in-time optimized compilation whereas the JikesRVM used in the SafeTSA research uses only a mixture of two ...
This list of JVM Languages comprises notable computer programming languages that are used to produce computer software that runs on the Java virtual machine (JVM). Some of these languages are interpreted by a Java program, and some are compiled to Java bytecode and just-in-time (JIT) compiled during execution as regular Java programs to improve performance.
In a Java program, the memory footprint is predominantly made up of the runtime environment in the form of Java virtual machine (JVM) itself that is loaded indirectly when a Java application launches. In addition, on most operating systems, disk files opened by an application too are read into the application's address space, thereby ...
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SableVM – first free software JVM to support JVMDI and JDWP. Makes use of GNU Classpath. LGPL. Version 1.13 released on March 30, 2007. Squawk virtual machine – a Java ME VM for embedded systems and small devices. Cross-Platform. GPL. SuperWaba – Java-like virtual machine for portable devices. GPL. Discontinued, succeeded by TotalCross.