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IL Opcode 完整名称、中文释义及极简示例

IL Opcode 完整名称、中文释义及极简示例

作者: 雨落随风 | 来源:发表于2024-08-18 01:17 被阅读0次

翻译和示例由 Github Copilot AI 在笔者对话驱动下完成，可能有不准确的地方，仅供参考!
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源数据来自 Unity MonoCecil 程序集 com.unity.nuget.mono-cecil@1.11.4\Mono.Cecil.dll

no. opcode 完整名称 释义 C# IL
1 Nop No operation 无操作 // No operation nop
2 Break Break 断点 // Breakpoint break
3 Ldarg_0 Load argument 0 加载第0个参数 void Method(int a) { int x = a; } ldarg.0
stloc.0
4 Ldarg_1 Load argument 1 加载第1个参数 void Method(int a, int b) { int x = b; } ldarg.1
stloc.0
5 Ldarg_2 Load argument 2 加载第2个参数 void Method(int a, int b, int c) { int x = c; } ldarg.2
stloc.0
6 Ldarg_3 Load argument 3 加载第3个参数 void Method(int a, int b, int c, int d) { int x = d; } ldarg.3
stloc.0
7 Ldloc_0 Load local 0 加载第0个局部变量 int x = 10; int y = x; ldc.i4.s 10
stloc.0
ldloc.0
stloc.1
8 Ldloc_1 Load local 1 加载第1个局部变量 int x = 10; int y = 20; int z = y; ldc.i4.s 10
stloc.0
ldc.i4.s 20
stloc.1
ldloc.1
stloc.2
9 Ldloc_2 Load local 2 加载第2个局部变量 int x = 10; int y = 20; int z = 30; int w = z; ldc.i4.s 10
stloc.0
ldc.i4.s 20
stloc.1
ldc.i4.s 30
stloc.2
ldloc.2
stloc.3
10 Ldloc_3 Load local 3 加载第3个局部变量 int x = 10; int y = 20; int z = 30; int w = 40; int v = w; ldc.i4.s 10
stloc.0
ldc.i4.s 20
stloc.1
ldc.i4.s 30
stloc.2
ldc.i4.s 40
stloc.3
ldloc.3
stloc.s 4
11 Stloc_0 Store local 0 存储到第0个局部变量 int x; x = 10; ldc.i4.s 10
stloc.0
12 Stloc_1 Store local 1 存储到第1个局部变量 int x, y; x = 10; y = 20; ldc.i4.s 10
stloc.0
ldc.i4.s 20
stloc.1
13 Stloc_2 Store local 2 存储到第2个局部变量 int x, y, z; x = 10; y = 20; z = 30; ldc.i4.s 10
stloc.0
ldc.i4.s 20
stloc.1
ldc.i4.s 30
stloc.2
14 Stloc_3 Store local 3 存储到第3个局部变量 int x, y, z, w; x = 10; y = 20; z = 30; w = 40; ldc.i4.s 10
stloc.0
ldc.i4.s 20
stloc.1
ldc.i4.s 30
stloc.2
ldc.i4.s 40
stloc.3
15 Ldarg_S Load argument short 短格式加载参数 void Method(int a) { int x = a; } ldarg.s 0
stloc.0
16 Ldarga_S Load argument address short 短格式加载参数地址 void Method(int a) { int* ptr = &a; } ldarga.s 0
stloc.0
17 Starg_S Store argument short 短格式存储参数 void Method(int a) { a = 10; } ldc.i4.s 10
starg.s 0
18 Ldloc_S Load local short 短格式加载局部变量 int x = 10; int y = x; ldc.i4.s 10
stloc.s 0
ldloc.s 0
stloc.s 1
19 Ldloca_S Load local address short 短格式加载局部变量地址 int x = 10; int* ptr = &x; ldc.i4.s 10
stloc.s 0
ldloca.s 0
stloc.s 1
20 Stloc_S Store local short 短格式存储局部变量 int x; x = 10; ldc.i4.s 10
stloc.s 0
21 Ldnull Load null 加载null object obj = null; ldnull
stloc.s 0
22 Ldc_I4_M1 Load constant int -1 加载整数-1 int x = -1; ldc.i4.m1
stloc.s 0
23 Ldc_I4_0 Load constant int 0 加载整数0 int x = 0; ldc.i4.0
stloc.s 0
24 Ldc_I4_1 Load constant int 1 加载整数1 int x = 1; ldc.i4.1
stloc.s 0
25 Ldc_I4_2 Load constant int 2 加载整数2 int x = 2; ldc.i4.2
stloc.s 0
26 Ldc_I4_3 Load constant int 3 加载整数3 int x = 3; ldc.i4.3
stloc.s 0
27 Ldc_I4_4 Load constant int 4 加载整数4 int x = 4; ldc.i4.4
stloc.s 0
28 Ldc_I4_5 Load constant int 5 加载整数5 int x = 5; ldc.i4.5
stloc.s 0
29 Ldc_I4_6 Load constant int 6 加载整数6 int x = 6; ldc.i4.6
stloc.s 0
30 Ldc_I4_7 Load constant int 7 加载整数7 int x = 7; ldc.i4.7
stloc.s 0
31 Ldc_I4_8 Load constant int 8 加载整数8 int x = 8; ldc.i4.8
stloc.s 0
32 Ldc_I4_S Load constant int short 短格式加载整数 int x = 100; ldc.i4.s 100
stloc.s 0
33 Ldc_I4 Load constant int 加载整数 int x = 1000; ldc.i4 1000
stloc.s 0
34 Ldc_I8 Load constant long 加载长整数 long x = 100L; ldc.i8 100
stloc.s 0
35 Ldc_R4 Load constant float 加载单精度浮点数 float x = 1.23f; ldc.r4 1.23
stloc.s 0
36 Ldc_R8 Load constant double 加载双精度浮点数 double x = 1.23; ldc.r8 1.23
stloc.s 0
37 Dup Duplicate 复制栈顶元素 int x = 10; int y = x; ldc.i4.s 10
dup
stloc.s 0
stloc.s 1
38 Pop Pop 弹出栈顶元素 int x = 10; x = 20; ldc.i4.s 10
stloc.s 0
ldc.i4.s 20
pop
stloc.s 0
39 Jmp Jump 跳转 // Jump to method jmp method
40 Call Call 调用方法 Console.WriteLine("Hello"); ldstr "Hello"
call void [mscorlib]System.Console::WriteLine(string)
41 Calli Call indirect 调用间接方法 // Call indirect calli
42 Ret Return 返回 return; ret
43 Br_S Branch short 短格式无条件跳转 goto Label; br.s Label
44 Brfalse_S Branch if false short 短格式为假跳转 if (!condition) goto Label; ldloc.0
brfalse.s Label
45 Brtrue_S Branch if true short 短格式为真跳转 if (condition) goto Label; ldloc.0
brtrue.s Label
46 Beq_S Branch if equal short 短格式相等跳转 if (x == y) goto Label; ldloc.0
ldloc.1
beq.s Label
47 Bge_S Branch if greater or equal short 短格式大于等于跳转 if (x >= y) goto Label; ldloc.0
ldloc.1
bge.s Label
48 Bgt_S Branch if greater short 短格式大于跳转 if (x > y) goto Label; ldloc.0
ldloc.1
bgt.s Label
49 Ble_S Branch if less or equal short 短格式小于等于跳转 if (x <= y) goto Label; ldloc.0
ldloc.1
ble.s Label
50 Blt_S Branch if less short 短格式小于跳转 if (x < y) goto Label; ldloc.0
ldloc.1
blt.s Label
51 Bne_Un_S Branch if Not Equal, Short form 短格式的条件分支指令，当两个值不相等时跳转 if (x != y) goto Label; ldloc.0
ldloc.1
bne.un.s Label
52 Bge_Un_S Branch if Greater or Equal, Unsigned, Short form 短格式的条件分支指令，当第一个值大于或等于第二个值（无符号比较）时跳转 if (x >= y) goto Label; ldloc.0
ldloc.1
bge.un.s Label
53 Bgt_Un_S Branch if Greater Than, Unsigned, Short form 短格式的条件分支指令，当第一个值大于第二个值（无符号比较）时跳转 if (x > y) goto Label; ldloc.0
ldloc.1
bgt.un.s Label
54 Ble_Un_S Branch if Less or Equal, Unsigned, Short form 短格式的条件分支指令，当第一个值小于或等于第二个值（无符号比较）时跳转 if (x <= y) goto Label; ldloc.0
ldloc.1
ble.un.s Label
55 Blt_Un_S Branch if Less Than, Unsigned, Short form 短格式的条件分支指令，当第一个值小于第二个值（无符号比较）时跳转 if (x < y) goto Label; ldloc.0
ldloc.1
blt.un.s Label
56 Br Branch 无条件分支指令 goto Label; br Label
57 Brfalse Branch if False 条件分支指令，当栈顶值为假时跳转 if (!condition) goto Label; ldloc.0
brfalse Label
58 Brtrue Branch if True 条件分支指令，当栈顶值为真时跳转 if (condition) goto Label; ldloc.0
brtrue Label
59 Beq Branch if Equal 条件分支指令，当两个值相等时跳转 if (x == y) goto Label; ldloc.0
ldloc.1
beq Label
60 Bge Branch if Greater or Equal 条件分支指令，当第一个值大于或等于第二个值时跳转 if (x >= y) goto Label; ldloc.0
ldloc.1
bge Label
61 Bgt Branch if Greater Than 条件分支指令，当第一个值大于第二个值时跳转 if (x > y) goto Label; ldloc.0
ldloc.1
bgt Label
62 Ble Branch if Less or Equal 条件分支指令，当第一个值小于或等于第二个值时跳转 if (x <= y) goto Label; ldloc.0
ldloc.1
ble Label
63 Blt Branch if Less Than 条件分支指令，当第一个值小于第二个值时跳转 if (x < y) goto Label; ldloc.0
ldloc.1
blt Label
64 Bne_Un Branch if Not Equal, Unsigned 条件分支指令，当两个值不相等（无符号比较）时跳转 if (x != y) goto Label; ldloc.0
ldloc.1
bne.un Label
65 Bge_Un Branch if Greater or Equal, Unsigned 条件分支指令，当第一个值大于或等于第二个值（无符号比较）时跳转 if (x >= y) goto Label; ldloc.0
ldloc.1
bge.un Label
66 Bgt_Un Branch if Greater Than, Unsigned 条件分支指令，当第一个值大于第二个值（无符号比较）时跳转 if (x > y) goto Label; ldloc.0
ldloc.1
bgt.un Label
67 Ble_Un Branch if Less or Equal, Unsigned 条件分支指令，当第一个值小于或等于第二个值（无符号比较）时跳转 if (x <= y) goto Label; ldloc.0
ldloc.1
ble.un Label
68 Blt_Un Branch if Less Than, Unsigned 条件分支指令，当第一个值小于第二个值（无符号比较）时跳转 if (x < y) goto Label; ldloc.0
ldloc.1
blt.un Label
69 Switch Switch 多路分支指令 switch (x) { case 1: break; case 2: break; } ldloc.0
switch (targets)
70 Ldind_I1 Load Indirect, Int8 从地址加载一个8位整数 sbyte x = (sbyte)ptr; ldind.i1
71 Ldind_U1 Load Indirect, Unsigned Int8 从地址加载一个无符号8位整数 byte x = (byte)ptr; ldind.u1
72 Ldind_I2 Load Indirect, Int16 从地址加载一个16位整数 short x = (short)ptr; ldind.i2
73 Ldind_U2 Load Indirect, Unsigned Int16 从地址加载一个无符号16位整数 ushort x = (ushort)ptr; ldind.u2
74 Ldind_I4 Load Indirect, Int32 从地址加载一个32位整数 int x = (int)ptr; ldind.i4
75 Ldind_U4 Load Indirect, Unsigned Int32 从地址加载一个无符号32位整数 uint x = (uint)ptr; ldind.u4
76 Ldind_I8 Load Indirect, Int64 从地址加载一个64位整数 long x = (long)ptr; ldind.i8
77 Ldind_I Load Indirect, Native Int 从地址加载一个本机整数 IntPtr x = (IntPtr)ptr; ldind.i
78 Ldind_R4 Load Indirect, Float32 从地址加载一个32位浮点数 float x = (float)ptr; ldind.r4
79 Ldind_R8 Load Indirect, Float64 从地址加载一个64位浮点数 double x = (double)ptr; ldind.r8
80 Ldind_Ref Load Indirect, Reference 从地址加载一个对象引用 object x = (object)ptr; ldind.ref
81 Stind_Ref Store Indirect, Reference 将对象引用存储到地址 (object)ptr = x; stind.ref
82 Stind_I1 Store Indirect, Int8 将8位整数存储到地址 (sbyte)ptr = x; stind.i1
83 Stind_I2 Store Indirect, Int16 将16位整数存储到地址 (short)ptr = x; stind.i2
84 Stind_I4 Store Indirect, Int32 将32位整数存储到地址 (int)ptr = x; stind.i4
85 Stind_I8 Store Indirect, Int64 将64位整数存储到地址 (long)ptr = x; stind.i8
86 Stind_R4 Store Indirect, Float32 将32位浮点数存储到地址 (float)ptr = x; stind.r4
87 Stind_R8 Store Indirect, Float64 将64位浮点数存储到地址 (double)ptr = x; stind.r8
88 Add Add 将两个值相加 int z = x + y; ldloc.0
ldloc.1
add
stloc.2
89 Sub Subtract 将两个值相减 int z = x - y; ldloc.0
ldloc.1
sub
stloc.2
90 Mul Multiply 将两个值相乘 int z = x * y; ldloc.0
ldloc.1
mul
stloc.2
91 Div Divide 将两个值相除 int z = x / y; ldloc.0
ldloc.1
div
stloc.2
92 Div_Un Divide, Unsigned 将两个无符号值相除 uint z = x / y; ldloc.0
ldloc.1
div.un
stloc.2
93 Rem Remainder 计算两个值的余数 int z = x % y; ldloc.0
ldloc.1
rem
stloc.2
94 Rem_Un Remainder, Unsigned 计算两个无符号值的余数 uint z = x % y; ldloc.0
ldloc.1
rem.un
stloc.2
95 And And 计算两个值的按位与 int z = x & y; ldloc.0
ldloc.1
and
stloc.2
96 Or Or 计算两个值的按位或 int z = x | y; ldloc.0
ldloc.1
or
stloc.2
97 Xor Exclusive Or 计算两个值的按位异或 int z = x ^ y; ldloc.0
ldloc.1
xor
stloc.2
98 Shl Shift Left 将一个值左移指定的位数 int z = x << y; ldloc.0
ldloc.1
shl
stloc.2
99 Shr Shift Right 将一个值右移指定的位数 int z = x >> y; ldloc.0
ldloc.1
shr
stloc.2
100 Shr_Un Shift Right, Unsigned 将一个无符号值右移指定的位数 uint z = x >> y; ldloc.0
ldloc.1
shr.un
stloc.2
101 Neg Negate 取反操作 int z = -x; ldloc.0
neg
stloc.1
102 Not Bitwise Not 按位取反操作 int z = ~x; ldloc.0
not
stloc.1
103 Conv_I1 Convert to Int8 转换为8位整数 sbyte x = (sbyte)y; ldloc.0
conv.i1
stloc.1
104 Conv_I2 Convert to Int16 转换为16位整数 short x = (short)y; ldloc.0
conv.i2
stloc.1
105 Conv_I4 Convert to Int32 转换为32位整数 int x = (int)y; ldloc.0
conv.i4
stloc.1
106 Conv_I8 Convert to Int64 转换为64位整数 long x = (long)y; ldloc.0
conv.i8
stloc.1
107 Conv_R4 Convert to Float32 转换为32位浮点数 float x = (float)y; ldloc.0
conv.r4
stloc.1
108 Conv_R8 Convert to Float64 转换为64位浮点数 double x = (double)y; ldloc.0
conv.r8
stloc.1
109 Conv_U4 Convert to Unsigned Int32 转换为无符号32位整数 uint x = (uint)y; ldloc.0
conv.u4
stloc.1
110 Conv_U8 Convert to Unsigned Int64 转换为无符号64位整数 ulong x = (ulong)y; ldloc.0
conv.u8
stloc.1
111 Callvirt Call Virtual Method 调用虚方法 obj.Method(); ldloc.0
callvirt instance void [mscorlib]System.Object::Method()
112 Cpobj Copy Object 复制对象 *dest = *src; ldloc.0
ldloc.1
cpobj [mscorlib]System.Object
113 Ldobj Load Object 加载对象 var x = *ptr; ldloc.0
ldobj [mscorlib]System.Object
114 Ldstr Load String 加载字符串 string s = "Hello"; ldstr "Hello"
115 Newobj Create New Object 创建新对象 var obj = new MyClass(); newobj instance void MyClass::.ctor()
116 Castclass Cast to Class 类型转换 var obj = (MyClass)other; ldloc.0
castclass MyClass
117 Isinst Is Instance 判断实例类型 var obj = other as MyClass; ldloc.0
isinst MyClass
118 Conv_R_Un Convert to Float, Unsigned 转换为无符号浮点数 double x = (double)y; ldloc.0
conv.r.un
stloc.1
119 Unbox Unbox 拆箱操作 var obj = (MyClass)boxed; ldloc.0
unbox MyClass
120 Throw Throw Exception 抛出异常 throw ex; ldloc.0
throw
121 Ldfld Load Field 加载字段 var x = obj.field; ldloc.0
ldfld int32 MyClass::field
122 Ldflda Load Field Address 加载字段地址 var ptr = &obj.field; ldloc.0
ldflda int32 MyClass::field
123 Stfld Store Field 存储字段 obj.field = x; ldloc.0
ldloc.1
stfld int32 MyClass::field
124 Ldsfld Load Static Field 加载静态字段 var x = MyClass.field; ldsfld int32 MyClass::field
125 Ldsflda Load Static Field Address 加载静态字段地址 var ptr = &MyClass.field; ldsflda int32 MyClass::field
126 Stsfld Store Static Field 存储静态字段 MyClass.field = x; ldloc.0
stsfld int32 MyClass::field
127 Stobj Store Object 存储对象 *ptr = obj; ldloc.0
ldloc.1
stobj [mscorlib]System.Object
128 Conv_Ovf_I1_Un Convert to Int8, Unsigned, Overflow Check 转换为无符号8位整数，带溢出检查 sbyte x = checked((sbyte)y); ldloc.0
conv.ovf.i1.un
stloc.1
129 Conv_Ovf_I2_Un Convert to Int16, Unsigned, Overflow Check 转换为无符号16位整数，带溢出检查 short x = checked((short)y); ldloc.0
conv.ovf.i2.un
stloc.1
130 Conv_Ovf_I4_Un Convert to Int32, Unsigned, Overflow Check 转换为无符号32位整数，带溢出检查 int x = checked((int)y); ldloc.0
conv.ovf.i4.un
stloc.1
131 Conv_Ovf_I8_Un Convert to Int64, Unsigned, Overflow Check 转换为无符号64位整数，带溢出检查 long x = checked((long)y); ldloc.0
conv.ovf.i8.un
stloc.1
132 Conv_Ovf_U1_Un Convert to Unsigned Int8, Unsigned, Overflow Check 转换为无符号8位整数，带溢出检查 byte x = checked((byte)y); ldloc.0
conv.ovf.u1.un
stloc.1
133 Conv_Ovf_U2_Un Convert to Unsigned Int16, Unsigned, Overflow Check 转换为无符号16位整数，带溢出检查 ushort x = checked((ushort)y); ldloc.0
conv.ovf.u2.un
stloc.1
134 Conv_Ovf_U4_Un Convert to Unsigned Int32, Unsigned, Overflow Check 转换为无符号32位整数，带溢出检查 uint x = checked((uint)y); ldloc.0
conv.ovf.u4.un
stloc.1
135 Conv_Ovf_U8_Un Convert to Unsigned Int64, Unsigned, Overflow Check 转换为无符号64位整数，带溢出检查 ulong x = checked((ulong)y); ldloc.0
conv.ovf.u8.un
stloc.1
136 Conv_Ovf_I_Un Convert to Int, Unsigned, Overflow Check 转换为无符号整数，带溢出检查 int x = checked((int)y); ldloc.0
conv.ovf.i.un
stloc.1
137 Conv_Ovf_U_Un Convert to Unsigned Int, Unsigned, Overflow Check 转换为无符号整数，带溢出检查 uint x = checked((uint)y); ldloc.0
conv.ovf.u.un
stloc.1
138 Box Box 装箱操作 object obj = x; ldloc.0
box [mscorlib]System.Int32
139 Newarr Create New Array 创建新数组 var arr = new int[10]; ldc.i4.s 10
newarr [mscorlib]System.Int32
140 Ldlen Load Array Length 加载数组长度 int len = arr.Length; ldloc.0
ldlen
141 Ldelema Load Element Address 加载元素地址 ref int elem = ref arr[0]; ldloc.0
ldc.i4.0
ldelema [mscorlib]System.Int32
142 Ldelem_I1 Load Element, Int8 加载8位整数元素 sbyte x = arr[0]; ldloc.0
ldc.i4.0
ldelem.i1
143 Ldelem_U1 Load Element, Unsigned Int8 加载无符号8位整数元素 byte x = arr[0]; ldloc.0
ldc.i4.0
ldelem.u1
144 Ldelem_I2 Load Element, Int16 加载16位整数元素 short x = arr[0]; ldloc.0
ldc.i4.0
ldelem.i2
145 Ldelem_U2 Load Element, Unsigned Int16 加载无符号16位整数元素 ushort x = arr[0]; ldloc.0
ldc.i4.0
ldelem.u2
146 Ldelem_I4 Load Element, Int32 加载32位整数元素 int x = arr[0]; ldloc.0
ldc.i4.0
ldelem.i4
147 Ldelem_U4 Load Element, Unsigned Int32 加载无符号32位整数元素 uint x = arr[0]; ldloc.0
ldc.i4.0
ldelem.u4
148 Ldelem_I8 Load Element, Int64 加载64位整数元素 long x = arr[0]; ldloc.0
ldc.i4.0
ldelem.i8
149 Ldelem_I Load Element, Native Int 加载本机整数元素 IntPtr x = arr[0]; ldloc.0
ldc.i4.0
ldelem.i
150 Ldelem_R4 Load Element, Float32 加载32位浮点数元素 float x = arr[0]; ldloc.0
ldc.i4.0
ldelem.r4
151 Ldelem_R8 Load Element, Float64 加载64位浮点数元素 double x = arr[0]; ldloc.0
ldc.i4.0
ldelem.r8
152 Ldelem_Ref Load Element, Reference 加载引用类型元素 object x = arr[0]; ldloc.0
ldc.i4.0
ldelem.ref
153 Stelem_I Store Element, Native Int 存储本机整数元素 arr[0] = x; ldloc.0
ldc.i4.0
ldloc.1
stelem.i
154 Stelem_I1 Store Element, Int8 存储8位整数元素 arr[0] = x; ldloc.0
ldc.i4.0
ldloc.1
stelem.i1
155 Stelem_I2 Store Element, Int16 存储16位整数元素 arr[0] = x; ldloc.0
ldc.i4.0
ldloc.1
stelem.i2
156 Stelem_I4 Store Element, Int32 存储32位整数元素 arr[0] = x; ldloc.0
ldc.i4.0
ldloc.1
stelem.i4
157 Stelem_I8 Store Element, Int64 存储64位整数元素 arr[0] = x; ldloc.0
ldc.i4.0
ldloc.1
stelem.i8
158 Stelem_R4 Store Element, Float32 存储32位浮点数元素 arr[0] = x; ldloc.0
ldc.i4.0
ldloc.1
stelem.r4
159 Stelem_R8 Store Element, Float64 存储64位浮点数元素 arr[0] = x; ldloc.0
ldc.i4.0
ldloc.1
stelem.r8
160 Stelem_Ref Store Element, Reference 存储引用类型元素 arr[0] = x; ldloc.0
ldc.i4.0
ldloc.1
stelem.ref
161 Ldelem_Any Load Element, Any 加载任意类型元素 var x = arr[0]; ldloc.0
ldc.i4.0
ldelem.any [mscorlib]System.Object
162 Stelem_Any Store Element, Any 存储任意类型元素 arr[0] = x; ldloc.0
ldc.i4.0
ldloc.1
stelem.any [mscorlib]System.Object
163 Unbox_Any Unbox Any 拆箱任意类型 var x = (MyClass)boxed; ldloc.0
unbox.any MyClass
164 Conv_Ovf_I1 Convert to Int8, Overflow Check 转换为8位整数，带溢出检查 sbyte x = checked((sbyte)y); ldloc.0
conv.ovf.i1
stloc.1
165 Conv_Ovf_U1 Convert to Unsigned Int8, Overflow Check 转换为无符号8位整数，带溢出检查 byte x = checked((byte)y); ldloc.0
conv.ovf.u1
stloc.1
166 Conv_Ovf_I2 Convert to Int16, Overflow Check 转换为16位整数，带溢出检查 short x = checked((short)y); ldloc.0
conv.ovf.i2
stloc.1
167 Conv_Ovf_U2 Convert to Unsigned Int16, Overflow Check 转换为无符号16位整数，带溢出检查 ushort x = checked((ushort)y); ldloc.0
conv.ovf.u2
stloc.1
168 Conv_Ovf_I4 Convert to Int32, Overflow Check 转换为32位整数，带溢出检查 int x = checked((int)y); ldloc.0
conv.ovf.i4
stloc.1
169 Conv_Ovf_U4 Convert to Unsigned Int32, Overflow Check 转换为无符号32位整数，带溢出检查 uint x = checked((uint)y); ldloc.0
conv.ovf.u4
stloc.1
170 Conv_Ovf_I8 Convert to Int64, Overflow Check 转换为64位整数，带溢出检查 long x = checked((long)y); ldloc.0
conv.ovf.i8
stloc.1
171 Conv_Ovf_U8 Convert to Unsigned Int64, Overflow Check 转换为无符号64位整数，带溢出检查 ulong x = checked((ulong)y); ldloc.0
conv.ovf.u8
stloc.1
172 Refanyval Reference Any Value 引用任意值 TypedReference tr = __makeref(obj); ldloc.0
refanyval [mscorlib]System.Object
173 Ckfinite Check Finite 检查有限性 if (float.IsNaN(x) || float.IsInfinity(x)) throw new ArithmeticException(); ldloc.0
ckfinite
174 Mkrefany Make Reference Any 创建任意引用 TypedReference tr = __makeref(obj); ldloc.0
mkrefany [mscorlib]System.Object
175 Ldtoken Load Token 加载标记 RuntimeTypeHandle handle = typeof(MyClass).TypeHandle; ldtoken MyClass
176 Conv_U2 Convert to Unsigned Int16 转换为无符号16位整数 ushort x = (ushort)y; ldloc.0
conv.u2
stloc.1
177 Conv_U1 Convert to Unsigned Int8 转换为无符号8位整数 byte x = (byte)y; ldloc.0
conv.u1
stloc.1
178 Conv_I Convert to Int 转换为整数 IntPtr x = (IntPtr)y; ldloc.0
conv.i
stloc.1
179 Conv_Ovf_I Convert to Int, Overflow Check 转换为整数，带溢出检查 int x = checked((int)y); ldloc.0
conv.ovf.i
stloc.1
180 Conv_Ovf_U Convert to Unsigned Int, Overflow Check 转换为无符号整数，带溢出检查 uint x = checked((uint)y); ldloc.0
conv.ovf.u
stloc.1
181 Add_Ovf Add, Overflow Check 加法，带溢出检查 int x = checked(a + b); ldloc.0
ldloc.1
add.ovf
stloc.2
182 Add_Ovf_Un Add Unsigned, Overflow Check 无符号加法，带溢出检查 uint x = checked(a + b); ldloc.0
ldloc.1
add.ovf.un
stloc.2
183 Mul_Ovf Multiply, Overflow Check 乘法，带溢出检查 int x = checked(a * b); ldloc.0
ldloc.1
mul.ovf
stloc.2
184 Mul_Ovf_Un Multiply Unsigned, Overflow Check 无符号乘法，带溢出检查 uint x = checked(a * b); ldloc.0
ldloc.1
mul.ovf.un
stloc.2
185 Sub_Ovf Subtract, Overflow Check 减法，带溢出检查 int x = checked(a - b); ldloc.0
ldloc.1
sub.ovf
stloc.2
186 Sub_Ovf_Un Subtract Unsigned, Overflow Check 无符号减法，带溢出检查 uint x = checked(a - b); ldloc.0
ldloc.1
sub.ovf.un
stloc.2
187 Endfinally End Finally 结束finally块 finally { ... } endfinally
188 Leave Leave 离开 leave label; leave.s label
189 Leave_S Leave Short 短离开 leave label; leave.s label
190 Stind_I Store Indirect, Int 间接存储整数 *ptr = value; ldloc.0
ldloc.1
stind.i
191 Conv_U Convert to Unsigned Int 转换为无符号整数 uint x = (uint)y; ldloc.0
conv.u
stloc.1
192 Arglist Argument List 参数列表 RuntimeArgumentHandle args = __arglist(); arglist
193 Ceq Compare Equal 比较相等 bool x = (a == b); ldloc.0
ldloc.1
ceq
stloc.2
194 Cgt Compare Greater Than 比较大于 bool x = (a > b); ldloc.0
ldloc.1
cgt
stloc.2
195 Cgt_Un Compare Greater Than Unsigned 比较无符号大于 bool x = (a > b); ldloc.0
ldloc.1
cgt.un
stloc.2
196 Clt Compare Less Than 比较小于 bool x = (a < b); ldloc.0
ldloc.1
clt
stloc.2
197 Clt_Un Compare Less Than Unsigned 比较无符号小于 bool x = (a < b); ldloc.0
ldloc.1
clt.un
stloc.2
198 Ldftn Load Function 加载函数 IntPtr ptr = obj.Method; ldftn instance void [mscorlib]System.Object::Method()
199 Ldvirtftn Load Virtual Function 加载虚函数 IntPtr ptr = obj.Method; ldloc.0
ldvirtftn instance void [mscorlib]System.Object::Method()
200 Ldarg Load Argument 加载参数 int x = arg; ldarg.0
201 Ldarga Load Argument Address 加载参数地址 ref int x = ref arg; ldarga.s 0
202 Starg Store Argument 存储参数 arg = x; ldarg.0
starg.s 0
203 Ldloc Load Local 加载局部变量 int x = local; ldloc.0
204 Ldloca Load Local Address 加载局部变量地址 ref int x = ref local; ldloca.s 0
205 Stloc Store Local 存储局部变量 local = x; ldloc.0
stloc.0
206 Localloc Local Allocation 局部分配 byte* ptr = stackalloc byte[10]; ldc.i4.s 10
localloc
207 Endfilter End Filter 结束过滤器 endfilter; endfilter
208 Unaligned Unaligned 未对齐 (unaligned int)ptr = value; unaligned. 1
209 Volatile Volatile 易失 volatile int x = *ptr; volatile.
210 Tail Tail 尾部 return Method(); tail.
211 Initobj Initialize Object 初始化对象 obj = new MyClass(); ldloca.s obj
initobj MyClass
212 Constrained Constrained 约束 constrained. MyClass
213 Cpblk Copy Block 复制块 Buffer.BlockCopy(src, 0, dest, 0, length); ldloc.0
ldloc.1
ldloc.2
cpblk
214 Initblk Initialize Block 初始化块 Unsafe.InitBlock(ptr, value, length); ldloc.0
ldloc.1
ldloc.2
initblk
215 No No Operation 无操作 #error directive no.
216 Rethrow Rethrow 重新抛出 throw; rethrow
217 Sizeof Size Of 大小 int size = sizeof(MyClass); sizeof MyClass
218 Refanytype Reference Any Type 引用任意类型 Type t = __reftype(tr); ldloc.0
refanytype
219 Readonly Readonly 只读 readonly int x = *ptr; readonly.

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