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1,860 symbols 4,713 edges 374 files 294 documented · 16% ● updated 2y ago★ 1031 open issues

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⨍ Functions 1,416◇ Types & classes 444

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README

write-your-own-jvm

implement a simple jvm with java

项目文档

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Extension points exported contracts — how you extend this code

ConstantInfo (Interface)

Constant Type Value CONSTANT_Class 7 CONSTANT_Fieldref 9 CONSTANT_Methodref [26 implementers]

app/src/main/java/write/your/own/jvm/classfile/constantpool/ConstantInfo.java

Instruction (Interface)

每条指令都以一个单字节的操作码（opcode）开头，这就是字节码名称的由来。由于只使用一字节表示操作码，显而易见，Java虚拟机最多只能支持256条指令。和汇编语言类似，为了便于记忆，Java虚拟机规范给每个操作码都指定了一个助 [351 …

app/src/main/java/write/your/own/jvm/instruction/Instruction.java

NativeMethod (Interface)

(no doc) [84 implementers]

app/src/main/java/write/your/own/jvm/vnative/NativeMethod.java

Entry (Interface)

(no doc) [8 implementers]

app/src/main/java/write/your/own/jvm/classpath/Entry.java

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Core symbols most depended-on inside this repo

↓ 204 filesOperandStack

操作数栈操作数栈和局部变量表只存放数据的值，并不记录数据类型。

app/src/main/java/write/your/own/jvm/runtimedata/OperandStack.java

↓ 202 filesInstruction

每条指令都以一个单字节的操作码（opcode）开头，这就是字节码名称的由来。由于只使用一字节表示操作码，显而易见，Java虚拟机最多只能支持256条指令。和汇编语言类似，为了便于记忆，Java虚拟机规范给每个操作码都指定了一个助记符（mnemonic）。 …

app/src/main/java/write/your/own/jvm/instruction/Instruction.java

↓ 210 filesStackFrame

app/src/main/java/write/your/own/jvm/runtimedata/StackFrame.java

↓ 59 filesLocalVariableTable

局部变量表操作数栈和局部变量表只存放数据的值，并不记录数据类型。

app/src/main/java/write/your/own/jvm/runtimedata/LocalVariableTable.java

↓ 54 filesCodeReader

app/src/main/java/write/your/own/jvm/instruction/CodeReader.java

↓ 48 filesClassReader

app/src/main/java/write/your/own/jvm/classfile/ClassReader.java

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Shape

Method 1,416

Class 439

Interface 5

Languages

Java100%

Kotlin1%

Modules by API surface

app/src/main/java/write/your/own/jvm/runtimedata/heap/MyClass.java70 symbols

app/src/main/java/write/your/own/jvm/instruction/extended/Wide.java40 symbols

app/src/main/java/write/your/own/jvm/classfile/ClassFile.java27 symbols

app/src/main/java/write/your/own/jvm/vnative/java/lang/NClass.java22 symbols

app/src/main/java/write/your/own/jvm/runtimedata/heap/ClassMember.java22 symbols

app/src/main/java/write/your/own/jvm/runtimedata/heap/MyClassLoader.java21 symbols

app/src/main/java/write/your/own/jvm/vnative/sun/misc/NUnsafe.java20 symbols

app/src/main/java/write/your/own/jvm/runtimedata/OperandStack.java18 symbols

app/src/main/java/write/your/own/jvm/runtimedata/heap/MyMethod.java15 symbols

app/src/main/java/write/your/own/jvm/runtimedata/LocalVariableTable.java15 symbols

app/src/main/java/write/your/own/jvm/classfile/MemberInfo.java13 symbols

app/src/main/java/write/your/own/jvm/runtimedata/heap/MyObject.java12 symbols

For agents

$ claude mcp add write-your-own-jvm \
  -- python -m otcore.mcp_server <graph>

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github.com/aprz512/write-your-own-jvm @main

write-your-own-jvm

项目文档

博客版

公众号版

notion 版

为啥突然多了这么多 star ???

Extension points exported contracts — how you extend this code

Core symbols most depended-on inside this repo

Shape

Languages

Modules by API surface

For agents

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