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docs: 补充 float32 转换指令的文档

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zhangxun 2025-07-10 16:10:35 +08:00
parent efc88b33e3
commit cd61fdf295
1 changed files with 26 additions and 4 deletions
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src/main/java/org/jcnc/snow/vm/engine/VMOpCode.java
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@ -2218,11 +2218,34 @@ public class VMOpCode {
// endregion Long64 // endregion Long64
// region Float32 (0x00D4-0xD8) // region Float32 (0x00D4-0xD8)
/**
* F2B Opcode: Represents the type conversion operation from float32 to byte8 in the virtual machine.
* <p>This opcode is implemented by the {@link F2BCommand} class, which defines its specific execution logic.</p>
*
* <p>Execution Steps:</p>
* <ol>
* <li>Pop the top float32 value from the operand stack.</li>
* <li>Convert the float32 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 convert a float32 value to a byte8 type for further integer-based operations or comparisons.</p>
*/
public static final int F2B = 0x00D4; public static final int F2B = 0x00D4;
/**
* F2S Opcode: Represents the type conversion operation from float32 to short16 in the virtual machine.
* <p>This opcode is implemented by the {@link F2SCommand} class, which defines its specific execution logic.</p>
*
* <p>Execution Steps:</p>
* <ol>
* <li>Pop the top float32 value from the operand stack.</li>
* <li>Convert the float32 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 convert a float32 value to a short16 type for further integer-based operations or comparisons.</p>
*/
public static final int F2S = 0x00D5; public static final int F2S = 0x00D5;
/** /**
* F2I Opcode: Represents the type conversion operation from float32 to int32 in the virtual machine. * F2I Opcode: Represents the type conversion operation from float32 to int32 in the virtual machine.
* <p>This opcode is implemented by the {@link F2ICommand} class, which defines its specific execution logic.</p> * <p>This opcode is implemented by the {@link F2ICommand} class, which defines its specific execution logic.</p>
@ -2296,7 +2319,6 @@ public class VMOpCode {
* <p>This opcode is used to narrow a double64 value to a short16 type for further integer-based processing.</p> * <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;
/** /**
* D2I Opcode: Represents the type conversion operation from double64 to int32 in the virtual machine. * D2I Opcode: Represents the type conversion operation from double64 to int32 in the virtual machine.
* <p>This opcode is implemented by the {@link D2ICommand} class, which defines its specific execution logic.</p> * <p>This opcode is implemented by the {@link D2ICommand} class, which defines its specific execution logic.</p>