.Net CIL

MachineCode->Assembly->CIL(.Net) or SpecialMachineCode(JVM)->Pogramming code

CIL Instruction Set

Opcode	Instruction	Description
0x58	add	Add two values, returning a new value.
0xD6	add.ovf	Add signed integer values with overflow check.
0xD7	add.ovf.un	Add unsigned integer values with overflow check.
0x5F	and	Bitwise AND of two integral values, returns an integral value.
0xFE 0x00	arglist	Return argument list handle for the current method.
0x3B	beq <int32 (target)>	Branch to target if equal.
0x2E	beq.s<int8 (target)>	Branch to target if equal, short form.
0x3C	bge <int32 (target)>	Branch to target if greater than or equal to.
0x2F	bge.s <int8 (target)>	Branch to target if greater than or equal to, short form.
0x41	bge.un <int32 (target)>	Branch to target if greater than or equal to (unsigned or unordered).
0x34	bge.un.s <int8 (target)>	Branch to target if greater than or equal to (unsigned or unordered), short form
0x3D	bgt <int32 (target)>	Branch to target if greater than.
0x30	bgt.s <int8 (target)>	Branch to target if greater than, short form.
0x42	bgt.un <int32 (target)>	Branch to target if greater than (unsigned or unordered).
0x35	bgt.un.s <int8 (target)>	Branch to target if greater than (unsigned or unordered), short form.
0x3E	ble <int32 (target)>	Branch to target if less than or equal to.
0x31	ble.s <int8 (target)>	Branch to target if less than or equal to, short form.
0x43	ble.un <int32 (target)>	Branch to target if less than or equal to (unsigned or unordered).
0x36	ble.un.s <int8 (target)>	Branch to target if less than or equal to (unsigned or unordered), short form
0x3F	blt <int32 (target)>	Branch to target if less than.
0x32	blt.s <int8 (target)>	Branch to target if less than, short form.
0x44	blt.un <int32 (target)>	Branch to target if less than (unsigned or unordered).
0x37	blt.un.s <int8 (target)>	Branch to target if less than (unsigned or unordered), short form.
0x40	bne.un <int32 (target)>	Branch to target if unequal or unordered.
0x33	bne.un.s <int8 (target)>	Branch to target if unequal or unordered, short form.
0x8C	box <typeTok>	Convert a boxable value to its boxed form
0x38	br <int32 (target)>	Branch to target.
0x2B	br.s <int8 (target)>	Branch to target, short form.
0x01	break	Inform a debugger that a breakpoint has been reached.
0x39	brfalse <int32 (target)>	Branch to target if value is zero (false).
0x2C	brfalse.s <int8 (target)>	Branch to target if value is zero (false), short form.
0x3A	brinst <int32 (target)>	Branch to target if value is a non-null object reference (alias for brtrue).
0x2D	brinst.s <int8 (target)>	Branch to target if value is a non-null object reference, short form (alias for brtrue.s).
0x39	brnull <int32 (target)>	Branch to target if value is null (alias for brfalse).
0x2C	brnull <int8 (target)>	Branch to target if value is null (alias for brfalse.s), short form.
0x3A	brtrue <int32 (target)>	Branch to target if value is non-zero (true).
0x2D	brtrue.s <int8 (target)>	Branch to target if value is non-zero (true), short form.
0x39	brzero<int32 (target)>	Branch to target if value is zero (alias for brfalse).
0x2C	brzero<int8 (target)>	Branch to target if value is zero (alias for brfalse.s), short form.
0x28	call <method>	Call method described by method.
0x29	calli <callsitedescr>	Call method indicated on the stack with arguments described by callsitedescr.
0x6F	callvirt <method>	Call a method associated with an object.
0x74	castclass <class>	Cast obj to class.
0xFE 0x01	ceq	Push 1 (of type int32) if value1 equals value2, else push 0.
0xFE 0x02	cgt	Push 1 (of type int32) if value1 > value2, else push 0.
0xFE 0x03	cgt.un	Push 1 (of type int32) if value1 > value2, unsigned or unordered, else push 0.
0xC3	ckfinite	Throw ArithmeticException if value is not a finite number.
0xFE 0x04	clt	Push 1 (of type int32) if value1 < value2, else push 0.
0xFE 0x05	clt.un	Push 1 (of type int32) if value1 < value2, unsigned or unordered, else push 0.
0xFE 0x16	constrained. <thisType> [prefix]	Call a virtual method on a type constrained to be type T
0xD3	conv.i	Convert to native int, pushing native int on stack.
0x67	conv.i1	Convert to int8, pushing int32 on stack.
0x68	conv.i2	Convert to int16, pushing int32 on stack.
0x69	conv.i4	Convert to int32, pushing int32 on stack.
0x6A	conv.i8	Convert to int64, pushing int64 on stack.
0xD4	conv.ovf.i	Convert to a native int (on the stack as native int) and throw an exception on overflow.
0x8A	conv.ovf.i.un	Convert unsigned to a native int (on the stack as native int) and throw an exception on overflow.
0xB3	conv.ovf.i1	Convert to an int8 (on the stack as int32) and throw an exception on overflow.
0x82	conv.ovf.i1.un	Convert unsigned to an int8 (on the stack as int32) and throw an exception on overflow.
0xB5	conv.ovf.i2	Convert to an int16 (on the stack as int32) and throw an exception on overflow.
0x83	conv.ovf.i2.un	Convert unsigned to an int16 (on the stack as int32) and throw an exception on overflow.
0xB7	conv.ovf.i4	Convert to an int32 (on the stack as int32) and throw an exception on overflow.
0x84	conv.ovf.i4.un	Convert unsigned to an int32 (on the stack as int32) and throw an exception on overflow.
0xB9	conv.ovf.i8	Convert to an int64 (on the stack as int32) and throw an exception on overflow.
0x85	conv.ovf.i8.un	Convert unsigned to an int64 (on the stack as int32) and throw an exception on overflow.
0xD5	conv.ovf.u	Convert to a native unsigned int (on the stack as native int) and throw an exception on overflow.
0x8B	conv.ovf.u.un	Convert unsigned to a native unsigned int (on the stack as native int) and throw an exception on overflow.
0xB4	conv.ovf.u1	Convert to an unsigned int8 (on the stack as int32) and throw an exception on overflow.
0x86	conv.ovf.u1.un	Convert unsigned to an unsigned int8 (on the stack as int32) and throw an exception on overflow.
0xB6	conv.ovf.u2	Convert to an unsigned int16 (on the stack as int32) and throw an exception on overflow.
0x87	conv.ovf.u2.un	Convert unsigned to an unsigned int16 (on the stack as int32) and throw an exception on overflow.
0xB8	conv.ovf.u4	Convert to an unsigned int32 (on the stack as int32) and throw an exception on overflow.
0x88	conv.ovf.u4.un	Convert unsigned to an unsigned int32 (on the stack as int32) and throw an exception on overflow.
0xBA	conv.ovf.u8	Convert to an unsigned int64 (on the stack as int32) and throw an exception on overflow.
0x89	conv.ovf.u8.un	Convert unsigned to an unsigned int64 (on the stack as int32) and throw an exception on overflow.
0x76	conv.r.un	Convert unsigned integer to floating-point, pushing F on stack.
0x6B	conv.r4	Convert to float32, pushing F on stack.
0x6C	conv.r8	Convert to float64, pushing F on stack.
0xE0	conv.u	Convert to native unsigned int, pushing native int on stack.
0xD2	conv.u1	Convert to unsigned int8, pushing int32 on stack.
0xD1	conv.u2	Convert to unsigned int16, pushing int32 on stack.
0x6D	conv.u4	Convert to unsigned int32, pushing int32 on stack.
0x6E	conv.u8	Convert to unsigned int64, pushing int64 on stack.
0xFE 0x17	cpblk	Copy data from memory to memory.
0x70	cpobj <typeTok>	Copy a value type from src to dest.
0x5B	div	Divide two values to return a quotient or floating-point result.
0x5C	div.un	Divide two values, unsigned, returning a quotient.
0x25	dup	Duplicate the value on the top of the stack.
0xDC	endfault	End fault clause of an exception block.
0xFE 0X11	endfilter	End an exception handling filter clause.
0xDC	endfinally	End finally clause of an exception block.
0x4C	idind.u8	Indirect load value of type unsigned int64 as int64 on the stack (alias for ldind.i8).
0xFE 0x18	initblk	Set all bytes in a block of memory to a given byte value.
0xFE 0x15	initobj <typeTok>	Initialize the value at address dest.
0x75	isinst <class>	Test if obj is an instance of class, returning null or an instance of that class or interface.
0x27	jmp <method>	Exit current method and jump to the specified method.
0xFE 0x09	ldarg <uint16 (num)>	Load argument numbered num onto the stack.
0x02	ldarg.0	Load argument 0 onto the stack.
0x03	ldarg.1	Load argument 1 onto the stack.
0x04	ldarg.2	Load argument 2 onto the stack.
0x05	ldarg.3	Load argument 3 onto the stack.
0x0E	ldarg.s <uin8 (num)>	Load argument numbered num onto the stack, short form.
0xFE 0x0A	ldarga <uint16 (argNum)>	Fetch the address of argument argNum.
0x0F	ldarga.s <uint8 (argNum)>	Fetch the address of argument argNum, short form.
0x20	ldc.i4 <int32 (num)>	Push num of type int32 onto the stack as int32.
0x16	ldc.i4.0	Push 0 onto the stack as int32.
0x17	ldc.i4.1	Push 1 onto the stack as int32.
0x18	ldc.i4.2	Push 2 onto the stack as int32.
0x19	ldc.i4.3	Push 3 onto the stack as int32.
0x1A	ldc.i4.4	Push 4 onto the stack as int32.
0x1B	ldc.i4.5	Push 5 onto the stack as int32.
0x1C	ldc.i4.6	Push 6 onto the stack as int32.
0x1D	ldc.i4.7	Push 7 onto the stack as int32.
0x1E	ldc.i4.8	Push 8 onto the stack as int32.
0x15	ldc.i4.m1	Push -1 onto the stack as int32.
0x15	ldc.i4.M1	Push -1 of type int32 onto the stack as int32 (alias for ldc.i4.m1).
0x1F	ldc.i4.s <int8 (num)>	Push num onto the stack as int32, short form.
0x21	ldc.i8 <int64 (num)>	Push num of type int64 onto the stack as int64.
0x22	ldc.r4 <float32 (num)>	Push num of type float32 onto the stack as F.
0x23	ldc.r8 <float64 (num)>	Push num of type float64 onto the stack as F.
0xA3	ldelem <typeTok>	Load the element at index onto the top of the stack.
0x97	ldelem.i	Load the element with type native int at index onto the top of the stack as a native int.
0x90	ldelem.i1	Load the element with type int8 at index onto the top of the stack as an int32.
0x92	ldelem.i2	Load the element with type int16 at index onto the top of the stack as an int32.
0x94	ldelem.i4	Load the element with type int32 at index onto the top of the stack as an int32.
0x96	ldelem.i8	Load the element with type int64 at index onto the top of the stack as an int64.
0x98	ldelem.r4	Load the element with type float32 at index onto the top of the stack as an F
0x99	ldelem.r8	Load the element with type float64 at index onto the top of the stack as an F.
0x9A	ldelem.ref	Load the element at index onto the top of the stack as an O. The type of the O is the same as the element type of the array pushed on the CIL stack.
0x91	ldelem.u1	Load the element with type unsigned int8 at index onto the top of the stack as an int32.
0x93	ldelem.u2	Load the element with type unsigned int16 at index onto the top of the stack as an int32.
0x95	ldelem.u4	Load the element with type unsigned int32 at index onto the top of the stack as an int32.
0x96	ldelem.u8	Load the element with type unsigned int64 at index onto the top of the stack as an int64 (alias for ldelem.i8).
0x8F	ldelema <class>	Load the address of element at index onto the top of the stack.
0x7B	ldfld <field>	Push the value of field of object (or value type) obj, onto the stack.
0x7C	ldflda <field>	Push the address of field of object obj on the stack.
0xFE 0x06	ldftn <method>	Push a pointer to a method referenced by method, on the stack.
0x4D	ldind.i	Indirect load value of type native int as native int on the stack
0x46	ldind.i1	Indirect load value of type int8 as int32 on the stack.
0x48	ldind.i2	Indirect load value of type int16 as int32 on the stack.
0x4A	ldind.i4	Indirect load value of type int32 as int32 on the stack.
0x4C	ldind.i8	Indirect load value of type int64 as int64 on the stack.
0x4E	ldind.r4	Indirect load value of type float32 as F on the stack.
0x4F	ldind.r8	Indirect load value of type float64 as F on the stack.
0x50	ldind.ref	Indirect load value of type object ref as O on the stack.
0x47	ldind.u1	Indirect load value of type unsigned int8 as int32 on the stack
0x49	ldind.u2	Indirect load value of type unsigned int16 as int32 on the stack
0x4B	ldind.u4	Indirect load value of type unsigned int32 as int32 on the stack
0x8E	ldlen	Push the length (of type native unsigned int) of array on the stack.
0xFE 0x0C	ldloc <uint16 (indx)>	Load local variable of index indx onto stack.
0x06	ldloc.0	Load local variable 0 onto stack.
0x07	ldloc.1	Load local variable 1 onto stack.
0x08	ldloc.2	Load local variable 2 onto stack.
0x09	ldloc.3	Load local variable 3 onto stack.
0x11	ldloc.s <uint8 (indx)>	Load local variable of index indx onto stack, short form.
0xFE 0x0D	ldloca <uint16 (indx)>	Load address of local variable with index indx.
0x12	ldloca.s <uint8 (indx)>	Load address of local variable with index indx, short form.
0x14	ldnull	Push a null reference on the stack.
0x71	ldobj <typeTok>	Copy the value stored at address src to the stack.
0x7E	ldsfld <field>	Push the value of field on the stack.
0x7F	ldsflda <field>	Push the address of the static field, field, on the stack.
0x72	ldstr <string>	Push a string object for the literal string.
0xD0	ldtoken <token>	Convert metadata token to its runtime representation.
0xFE 0x07	ldvirtftn <method>	Push address of virtual method method on the stack.
0xDD	leave <int32 (target)>	Exit a protected region of code.
0xDE	leave.s <int8 (target)>	Exit a protected region of code, short form.
0xFE 0x0F	localloc	Allocate space from the local memory pool.
0xC6	mkrefany <class>	Push a typed reference to ptr of type class onto the stack.
0x5A	mul	Multiply values.
0xD8	mul.ovf.<type>	Multiply signed integer values. Signed result shall fit in same size
0xD9	mul.ovf.un	Multiply unsigned integer values. Unsigned result shall fit in same size
0x65	neg	Negate value.
0x8D	newarr <etype>	Create a new array with elements of type etype.
0x73	newobj <ctor>	Allocate an uninitialized object or value type and call ctor.
0xFE 0x19	no. { typecheck, rangecheck, nullcheck } [prefix]	The specified fault check(s) normally performed as part of the execution of the subsequent instruction can/shall be skipped.
0x00	nop	Do nothing.
0x66	not	Bitwise complement.
0x60	or	Bitwise OR of two integer values, returns an integer.
0x26	pop	Pop value from the stack.
0xFE 0x1E	readonly. [prefix]	Specify that the subsequent array address operation performs no type check at runtime, and that it returns a controlled-mutability managed pointer
0xFE 0x1D	refanytype	Push the type token stored in a typed reference.
0xC2	refanyval <type>	Push the address stored in a typed reference.
0x5D	rem	Remainder when dividing one value by another.
0x5E	rem.un	Remainder when dividing one unsigned value by another.
0x2A	ret	Return from method, possibly with a value.
0xFE 0x1A	rethrow	Rethrow the current exception.
0x62	shl	Shift an integer left (shifting in zeros), return an integer.
0x63	shr	Shift an integer right (shift in sign), return an integer.
0x64	shr.un	Shift an integer right (shift in zero), return an integer.
0xFE 0x1C	sizeof <typeTok>	Push the size, in bytes, of a type as an unsigned int32.
0xFE 0x0B	starg <uint16 (num)>	Store value to the argument numbered num.
0x10	starg.s <uint8 (num)>	Store value to the argument numbered num, short form.
0xA4	stelem <typeTok>	Replace array element at index with the value on the stack
0x9B	stelem.i	Replace array element at index with the i value on the stack.
0x9C	stelem.i1	Replace array element at index with the int8 value on the stack.
0x9D	stelem.i2	Replace array element at index with the int16 value on the stack.
0x9E	stelem.i4	Replace array element at index with the int32 value on the stack.
0x9F	stelem.i8	Replace array element at index with the int64 value on the stack.
0xA0	stelem.r4	Replace array element at index with the float32 value on the stack.
0xA1	stelem.r8	Replace array element at index with the float64 value on the stack.
0xA2	stelem.ref	Replace array element at index with the ref value on the stack.
0x7D	stfld <field>	Replace the value of field of the object obj with value.
0xDF	stind.i	Store value of type native int into memory at address
0x52	stind.i1	Store value of type int8 into memory at address
0x53	stind.i2	Store value of type int16 into memory at address
0x54	stind.i4	Store value of type int32 into memory at address
0x55	stind.i8	Store value of type int64 into memory at address
0x56	stind.r4	Store value of type float32 into memory at address
0x57	stind.r8	Store value of type float64 into memory at address
0x51	stind.ref	Store value of type object ref (type O) into memory at address
0xFE 0x0E	stloc <uint16 (indx)>	Pop a value from stack into local variable indx.
0x0A	stloc.0	Pop a value from stack into local variable 0.
0x0B	stloc.1	Pop a value from stack into local variable 1.
0x0C	stloc.2	Pop a value from stack into local variable 2.
0x0D	stloc.3	Pop a value from stack into local variable 3.
0x13	stloc.s <uint8 (indx)>	Pop a value from stack into local variable indx, short form.
0x81	stobj <typeTok>	Store a value of type typeTok at an address.
0x80	stsfld <field>	Replace the value of field with val.
0x59	sub	Subtract value2 from value1, returning a new value.
0xDA	sub.ovf	Subtract native int from a native int. Signed result shall fit in same size
0xDB	sub.ovf.un	Subtract native unsigned int from a native unsigned int. Unsigned result shall fit in same size.
0x45	switch <uint32, int32,int32 (t1..tN)>	Jump to one of n values.
0xFE 0x14	tail. [prefix]	Subsequent call terminates current method
0x7A	throw	Throw an exception.
0xFE 0x12	unaligned. (alignment) [prefix]	Subsequent pointer instruction might be unaligned.
0x79	unbox <valuetype>	Extract a value-type from obj, its boxed representation.
0xA5	unbox.any <typeTok>	Extract a value-type from obj, its boxed representation
0xFE 0x13	volatile. [prefix]	Subsequent pointer reference is volatile.
0x61	xor	Bitwise XOR of integer values, returns an integer.

Reference to:http://en.csharp-online.net/CIL_Instruction_Set