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docs: 补充 double64 转换指令的文档

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zhangxun 2025-07-10 16:08:21 +08:00
parent 9026b2deb3
commit efc88b33e3
1 changed files with 26 additions and 2 deletions
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src/main/java/org/jcnc/snow/vm/engine/VMOpCode.java
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@ -2268,9 +2268,33 @@ public class VMOpCode {
// endregion Float32 // endregion Float32
// region Double64 (0x00D9-0xDD) // region Double64 (0x00D9-0xDD)
/**
* D2B Opcode: Represents the type conversion operation from double64 to byte8 in the virtual machine.
* <p>This opcode is implemented by the {@link D2BCommand} class, which defines its specific execution logic.</p>
*
* <p>Execution Steps:</p>
* <ol>
* <li>Pop the top double64 value from the operand stack.</li>
* <li>Convert the double64 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 double64 value to a byte8 type for further integer-based processing.</p>
*/
public static final int D2B = 0x00D9; public static final int D2B = 0x00D9;
/**
* D2I Opcode: Represents the type conversion operation from double64 to short16 in the virtual machine.
* <p>This opcode is implemented by the {@link D2ICommand} class, which defines its specific execution logic.</p>
*
* <p>Execution Steps:</p>
* <ol>
* <li>Pop the top double64 value from the operand stack.</li>
* <li>Convert the double64 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 double64 value to a short16 type for further integer-based processing.</p>
*/
public static final int D2S = 0x00DA; public static final int D2S = 0x00DA;
/** /**