mirror of
https://github.com/GreemDev/Ryujinx.git
synced 2024-12-24 19:05:46 +00:00
2421186d97
* Generalize tail continues * Fix DecodeBasicBlock `Next` and `Branch` would be null, which is not the state expected by the branch instructions. They end up branching or falling into a block which is never populated by the `Translator`. This causes an assert to be fired when building the CFG. * Clean up Decode overloads * Do not synchronize when branching into exit block If we're branching into an exit block, that exit block will tail continue into another translation which already has a synchronization. * Remove A32 predicate tail continue If `block` is not an exit block then the `block.Next` must exist (as per the last instruction of `block`). * Throw if decoded 0 blocks Address gdkchan's feedback * Rebuild block list instead of setting to null Address gdkchan's feedback
102 lines
No EOL
2.4 KiB
C#
102 lines
No EOL
2.4 KiB
C#
using System;
|
|
using System.Collections.Generic;
|
|
|
|
namespace ARMeilleure.Decoders
|
|
{
|
|
class Block
|
|
{
|
|
public ulong Address { get; set; }
|
|
public ulong EndAddress { get; set; }
|
|
|
|
public Block Next { get; set; }
|
|
public Block Branch { get; set; }
|
|
|
|
public bool TailCall { get; set; }
|
|
public bool Exit { get; set; }
|
|
|
|
public List<OpCode> OpCodes { get; private set; }
|
|
|
|
public Block()
|
|
{
|
|
OpCodes = new List<OpCode>();
|
|
}
|
|
|
|
public Block(ulong address) : this()
|
|
{
|
|
Address = address;
|
|
}
|
|
|
|
public void Split(Block rightBlock)
|
|
{
|
|
int splitIndex = BinarySearch(OpCodes, rightBlock.Address);
|
|
|
|
if (OpCodes[splitIndex].Address < rightBlock.Address)
|
|
{
|
|
splitIndex++;
|
|
}
|
|
|
|
int splitCount = OpCodes.Count - splitIndex;
|
|
|
|
if (splitCount <= 0)
|
|
{
|
|
throw new ArgumentException("Can't split at right block address.");
|
|
}
|
|
|
|
rightBlock.EndAddress = EndAddress;
|
|
|
|
rightBlock.Next = Next;
|
|
rightBlock.Branch = Branch;
|
|
|
|
rightBlock.OpCodes.AddRange(OpCodes.GetRange(splitIndex, splitCount));
|
|
|
|
EndAddress = rightBlock.Address;
|
|
|
|
Next = rightBlock;
|
|
Branch = null;
|
|
|
|
OpCodes.RemoveRange(splitIndex, splitCount);
|
|
}
|
|
|
|
private static int BinarySearch(List<OpCode> opCodes, ulong address)
|
|
{
|
|
int left = 0;
|
|
int middle = 0;
|
|
int right = opCodes.Count - 1;
|
|
|
|
while (left <= right)
|
|
{
|
|
int size = right - left;
|
|
|
|
middle = left + (size >> 1);
|
|
|
|
OpCode opCode = opCodes[middle];
|
|
|
|
if (address == (ulong)opCode.Address)
|
|
{
|
|
break;
|
|
}
|
|
|
|
if (address < (ulong)opCode.Address)
|
|
{
|
|
right = middle - 1;
|
|
}
|
|
else
|
|
{
|
|
left = middle + 1;
|
|
}
|
|
}
|
|
|
|
return middle;
|
|
}
|
|
|
|
public OpCode GetLastOp()
|
|
{
|
|
if (OpCodes.Count > 0)
|
|
{
|
|
return OpCodes[OpCodes.Count - 1];
|
|
}
|
|
|
|
return null;
|
|
}
|
|
}
|
|
} |