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Overview
| Comment: | Implement jvmCanArrayStore(). |
|---|---|
| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA1: |
cef945116bf359f843e1e3ec7c9ce805 |
| User & Date: | stephanie.gawroriski 2019-06-12 22:16:35 |
Context
|
2019-06-12
| ||
| 22:19 | Add check for interface types as well. check-in: f7fe0f7589 user: stephanie.gawroriski tags: trunk | |
| 22:16 | Implement jvmCanArrayStore(). check-in: cef945116b user: stephanie.gawroriski tags: trunk | |
| 21:54 | Correct CHECKCAST where it would place un-cached entries on the stack when they should be cached. check-in: 844222f1c4 user: stephanie.gawroriski tags: trunk | |
Changes
Changes to runt/klib/supervisor/cc/squirreljme/jvm/JVMFunction.java.
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* @return If this object can be stored in the array then {@code 1} will
* be returned, otherwise {@code 0} will.
* @since 2019/04/27
*/
public static final int jvmCanArrayStore(int __p, int __v)
{
// Access of invalid object?
if (__p == Constants.BAD_MAGIC)
throw new VirtualMachineError();
Assembly.breakpoint();
throw new todo.TODO();
}
/**
* Returns the component type of the array
*
* @param __clid The class ID
* @return The component type of the array or {@code 0} if it is not an
................................................................................
if (pcl == 0 || pcl == Constants.BAD_MAGIC)
throw new VirtualMachineError();
// Scan through
ClassInfo mine = Assembly.pointerToClassInfo(pcl);
for (ClassInfo seek = mine; seek != null; seek = seek.superclass)
{
//Assembly.breakpoint();
// Get self pointer
int selfptr = seek.selfptr;
// Make sure we are not reading bad memory
if (selfptr == Constants.BAD_MAGIC)
throw new VirtualMachineError();
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* @return If this object can be stored in the array then {@code 1} will
* be returned, otherwise {@code 0} will.
* @since 2019/04/27
*/
public static final int jvmCanArrayStore(int __p, int __v)
{
// Access of invalid object?
if (__p == Constants.BAD_MAGIC || __v == Constants.BAD_MAGIC)
throw new VirtualMachineError();
// Can always store null values
if (__v == 0)
return 1;
// Load the component for this array
ClassInfo pci = Assembly.pointerToClassInfo(
Assembly.memReadInt(__p, Constants.OBJECT_CLASS_OFFSET)).
componentclass;
// Load value class type
int vcl = Assembly.memReadInt(__v, Constants.OBJECT_CLASS_OFFSET);
// Quick exact class match?
int pcisp = pci.selfptr;
if (pcisp == vcl)
return 1;
// Check if the value we are putting in is an instance of the given
// class component type
return JVMFunction.jvmIsInstance(vcl, pcisp);
}
/**
* Returns the component type of the array
*
* @param __clid The class ID
* @return The component type of the array or {@code 0} if it is not an
................................................................................
if (pcl == 0 || pcl == Constants.BAD_MAGIC)
throw new VirtualMachineError();
// Scan through
ClassInfo mine = Assembly.pointerToClassInfo(pcl);
for (ClassInfo seek = mine; seek != null; seek = seek.superclass)
{
// Get self pointer
int selfptr = seek.selfptr;
// Make sure we are not reading bad memory
if (selfptr == Constants.BAD_MAGIC)
throw new VirtualMachineError();
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