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docs: 补充 long64 转换指令的文档

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zhangxun 2025-07-10 16:04:35 +08:00
parent bbb908428e
commit 9026b2deb3
1 changed files with 26 additions and 3 deletions
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src/main/java/org/jcnc/snow/vm/engine/VMOpCode.java
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@ -2145,11 +2145,34 @@ public class VMOpCode {
// endregion Int32
// region Long64 (0x00CF-0xD3)
/**
* L2B Opcode: Represents the type conversion operation from long64 to byte8 in the virtual machine.
* <p>This opcode is implemented by the {@link L2BCommand} class, which defines its specific execution logic.</p>
*
* <p>Execution Steps:</p>
* <ol>
* <li>Pop the top long64 value from the operand stack.</li>
* <li>Convert the long64 value to a byte8 value (this may involve truncation).</li>
* <li>Push the converted byte8 value back onto the operand stack for subsequent operations.</li>
* </ol>
*
* <p>This opcode is used to narrow a long64 value to a byte8 type, suitable when a smaller numeric type is required.</p>
*/
public static final int L2B = 0x00CF;
/**
* L2S Opcode: Represents the type conversion operation from long64 to short16 in the virtual machine.
* <p>This opcode is implemented by the {@link L2SCommand} class, which defines its specific execution logic.</p>
*
* <p>Execution Steps:</p>
* <ol>
* <li>Pop the top long64 value from the operand stack.</li>
* <li>Convert the long64 value to a short16 value (this may involve truncation).</li>
* <li>Push the converted short16 value back onto the operand stack for subsequent operations.</li>
* </ol>
*
* <p>This opcode is used to narrow a long64 value to a short16 type, suitable when a smaller numeric type is required.</p>
*/
public static final int L2S = 0x00D0;
/**
* L2I Opcode: Represents the type conversion operation from long64 to int32 in the virtual machine.
* <p>This opcode is implemented by the {@link L2ICommand} class, which defines its specific execution logic.</p>