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first attempt to write inline ASM in C#, failed due to proteted ram

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Nitload
2023-04-22 03:40:36 +08:00
parent 906becc265
commit 1cb78e9e8f
78 changed files with 9595 additions and 56 deletions
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源代码/StgSharpDebug/CpuID.cs
-193
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@@ -1,193 +0,0 @@
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Reflection;
using System.Runtime.InteropServices;
namespace ssd
{
public class CpuID : IDisposable
{
[UnmanagedFunctionPointerAttribute(CallingConvention.Cdecl)]
public delegate void CpuIDDelegate(int level, byte[] buffer);
[DllImport("kernel32.dll", SetLastError = true)]
private static extern IntPtr VirtualAlloc(
IntPtr lpAddress,
UIntPtr dwSize,
AllocationType flAllocationType,
MemoryProtection flProtect
);
[DllImport("kernel32")]
private static extern bool VirtualFree(
IntPtr lpAddress,
UInt32 dwSize,
UInt32 dwFreeType
);
[Flags()]
public enum AllocationType : uint
{
COMMIT = 0x1000,
RESERVE = 0x2000,
RESET = 0x80000,
LARGE_PAGES = 0x20000000,
PHYSICAL = 0x400000,
TOP_DOWN = 0x100000,
WRITE_WATCH = 0x200000
}
[Flags()]
public enum MemoryProtection : uint
{
EXECUTE = 0x10,
EXECUTE_READ = 0x20,
EXECUTE_READWRITE = 0x40,
EXECUTE_WRITECOPY = 0x80,
NOACCESS = 0x01,
READONLY = 0x02,
READWRITE = 0x04,
WRITECOPY = 0x08,
GUARD_Modifierflag = 0x100,
NOCACHE_Modifierflag = 0x200,
WRITECOMBINE_Modifierflag = 0x400
}
private CpuIDDelegate cpuIdDelg;
private IntPtr codePointer;
// void x86CpuId(int level, byte* buffer)
// {
// eax = level
// cpuid
// buffer[0] = eax
// buffer[4] = ebx
// buffer[8] = ecx
// buffer[12] = edx
// }
private byte[] x86CodeBytes =
{
0x55, // push ebp
0x8B, 0xEC, // mov ebp,esp
0x53, // push ebx
0x57, // push edi
0x8B, 0x45, 0x08, // mov eax, dword ptr [ebp+8] (move level into eax)
0x0F, 0xA2, // cpuid
0x8B, 0x7D, 0x0C, // mov edi, dword ptr [ebp+12] (move address of buffer into edi)
0x89, 0x07, // mov dword ptr [edi+0], eax (write eax, ... to buffer)
0x89, 0x5F, 0x04, // mov dword ptr [edi+4], ebx
0x89, 0x4F, 0x08, // mov dword ptr [edi+8], ecx
0x89, 0x57, 0x0C, // mov dword ptr [edi+12],edx
0x5F, // pop edi
0x5B, // pop ebx
0x8B, 0xE5, // mov esp,ebp
0x5D, // pop ebp
0xc3 // ret
};
private byte[] x64CodeBytes =
{
0x53, // push rbx this gets clobbered by cpuid
// rcx is level
// rdx is buffer.
// Need to save buffer elsewhere, cpuid overwrites rdx
// Put buffer in r8, use r8 to reference buffer later.
// Save rdx (buffer addy) to r8
0x49, 0x89, 0xd0, // mov r8, rdx
// Move ecx (level) to eax to call cpuid, call cpuid
0x89, 0xc8, // mov eax, ecx
0x0F, 0xA2, // cpuid
// Write eax et al to buffer
0x41, 0x89, 0x40, 0x00, // mov dword ptr [r8+0], eax
0x41, 0x89, 0x58, 0x04, // mov dword ptr [r8+4], ebx
0x41, 0x89, 0x48, 0x08, // mov dword ptr [r8+8], ecx
0x41, 0x89, 0x50, 0x0c, // mov dword ptr [r8+12], edx
0x5b, // pop rbx
0xc3 // ret
};
public CpuID()
{
Compile();
}
~CpuID()
{
Dispose(false);
}
private void Compile()
{
byte[] codeBytes;
if (IntPtr.Size == 4)
{
codeBytes = x86CodeBytes;
}
else
{
codeBytes = x64CodeBytes;
}
this.codePointer = VirtualAlloc(
IntPtr.Zero,
new UIntPtr((uint)codeBytes.Length),
AllocationType.COMMIT | AllocationType.RESERVE,
MemoryProtection.EXECUTE_READWRITE
);
Marshal.Copy(codeBytes, 0, this.codePointer, codeBytes.Length);
this.cpuIdDelg = (CpuIDDelegate)Marshal.GetDelegateForFunctionPointer(this.codePointer, typeof(CpuIDDelegate));
}
public void Invoke(int level, byte[] buffer)
{
GCHandle handle = default(GCHandle);
if (buffer.Length < 16)
{
throw new ArgumentException("buffer must be at least 16 bytes long");
}
try
{
handle = GCHandle.Alloc(buffer, GCHandleType.Pinned);
this.cpuIdDelg(level, buffer);
}
finally
{
if (handle != default(GCHandle))
{
handle.Free();
}
}
}
public void Dispose()
{
Dispose(true);
}
public void Dispose(bool disposing)
{
if (this.codePointer != IntPtr.Zero)
{
VirtualFree(this.codePointer, 0, 0x8000);
this.codePointer = IntPtr.Zero;
}
}
}
}
源代码/StgSharpDebug/Program.cs
+1 -4
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}
*/
}
Console.WriteLine(StgSharp.Optimization.SSE.Sqrtss(25.0f));
public class MyNum : INode<MyNum>
{
}
}
源代码/StgSharpDebug/bin/Debug/net6.0/StgSharp.dll
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源代码/StgSharpDebug/bin/Debug/net6.0/StgSharp.xml
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<name>StgSharp</name>
</assembly>
<members>
<member name="P:StgSharp.Entity.CollisionSensor">
<member name="P:StgSharp.IEntity.CollisionSensor">
<summary>
A sensor used for cheking out if a bullet hit a player or something else
</summary>
</member>
<member name="P:StgSharp.Entity.Location">
<member name="P:StgSharp.IEntity.Location">
<summary>
A 2D vector presenting the position of an enemy entity, position can also be visited by X, Y
</summary>
</member>
<member name="P:StgSharp.Entity.X">
<member name="P:StgSharp.IEntity.X">
<summary>
X position of an enenmy entity
</summary>
</member>
<member name="P:StgSharp.Entity.Y">
<member name="P:StgSharp.IEntity.Y">
<summary>
Y position of an enemy entity
</summary>
</member>
<member name="F:StgSharp.Geometries.RenderMode.BasePoint">
<member name="T:StgSharp.Geometries.UnusedVertexException">
<summary>
坐标点将基于参考原点构建
当几何体调用了过多的CalcVec方法时，产生UnusedVertexException异常
</summary>
</member>
<member name="F:StgSharp.Geometries.RenderMode.RefPoint">
<member name="T:StgSharp.Geometries.GetLocationHandler">
<summary>
坐标点将基于参考起点构建
计算位移失量，需要手动输入游戏刻以提供时间数据
</summary>
<param name="tickCounter"></param>
<returns>表示位移量的三维矢量</returns>
</member>
<member name="T:StgSharp.Geometries.IPlainGeometry">
<summary>
平面几何体。包含三角形，对称四边形，自由多边形等。最多可由16个点参数定义。
</summary>
</member>
<member name="M:StgSharp.Geometries.Parallelogram.MovVertex03(System.UInt32)">
<summary>
移动平行四边形的第三个顶点，是一个多余的方法，调用会引发多余变量异常
</summary>
<param name="tick">当前游戏刻</param>
<returns></returns>
<exception cref="T:StgSharp.Geometries.UnusedVertexException">几何体过定义</exception>
</member>
<member name="M:StgSharp.Geometries.Point.Update(System.UInt32)">
<summary>
刷新点的位置，即移动点。当该点是某个几何体的从动点时
（即点坐标由几何体其他点约束或点参数已经在创建几何体时定义）
请不要再次进行定义，程序将自行忽略此处的代码。
</summary>
<param name="tick">当前游戏刻</param>
</member>
<member name="M:StgSharp.Geometries.Rectangle.MovCenter(System.UInt32)">
<summary>
计算中心点相对于参考原点的位移
</summary>
<param name="tick">当前游戏刻</param>
<returns></returns>
</member>
<member name="M:StgSharp.Math.VectorCalc.multiple(StgSharp.Math.colum2,StgSharp.Math.vec2d)">
<summary>
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