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fix: 统一哨兵值

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This commit is contained in:
Luke 2025-06-30 23:42:52 +08:00
parent 2a085f6906
commit 30b89c0f3d
1 changed files with 5 additions and 3 deletions
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8
src/main/java/org/jcnc/snow/vm/commands/function/RetCommand.java
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@ -14,7 +14,9 @@ import org.jcnc.snow.vm.module.*;
*/ */
public class RetCommand implements Command { public class RetCommand implements Command {
/** Sentinel value that tells the VM loop to terminate gracefully. */ /**
* Sentinel value that tells the VM loop to terminate gracefully.
*/
private static final int PROGRAM_END = Integer.MAX_VALUE; private static final int PROGRAM_END = Integer.MAX_VALUE;
@Override @Override
@ -32,8 +34,8 @@ public class RetCommand implements Command {
StackFrame topFrame = callStack.peekFrame(); StackFrame topFrame = callStack.peekFrame();
/* ----- Root frame: do NOT pop, just end program ----- */ /* ----- Root frame: do NOT pop, just end program ----- */
if (topFrame.getReturnAddress() == 0) { if (topFrame.getReturnAddress() == PROGRAM_END) {
System.out.println("Return 0"); System.out.println("Return <root>");
return PROGRAM_END; // VM main loop should break return PROGRAM_END; // VM main loop should break
} }