Instruction set: CIL

Arithmetic

Name	Description
Add	Adds two values and pushes the result onto the evaluation stack.
Add.Ovf	Adds two integers, performs an overflow check, and pushes the result onto the evaluation stack.
Add.Ovf.Un	Adds two unsigned integer values, performs an overflow check, and pushes the result onto the evaluation stack.
Div	Divides two values and pushes the result as a floating-point (type F) or quotient (type int32) onto the evaluation stack.
Div.Un	Divides two unsigned integer values and pushes the result (int32) onto the evaluation stack.
Mul	Multiplies two values and pushes the result on the evaluation stack.
Mul.Ovf	Multiplies two integer values, performs an overflow check, and pushes the result onto the evaluation stack.
Mul.Ovf.Un	Multiplies two unsigned integer values, performs an overflow check, and pushes the result onto the evaluation stack.
Neg	Negates a value and pushes the result onto the evaluation stack.
Rem	Divides two values and pushes the remainder onto the evaluation stack.
Rem.Un	Divides two unsigned values and pushes the remainder onto the evaluation stack.
Sub	Subtracts one value from another and pushes the result onto the evaluation stack.
Sub.Ovf	Subtracts one integer value from another, performs an overflow check, and pushes the result onto the evaluation stack.
Sub.Ovf.Un	Subtracts one unsigned integer value from another, performs an overflow check, and pushes the result onto the evaluation stack.

Logical and shift

Name	Description
And	Computes the bitwise AND of two values and pushes the result onto the evaluation stack.
Or	Compute the bitwise complement of the two integer values on top of the stack and pushes the result onto the evaluation stack.
Not	Computes the bitwise complement of the integer value on top of the stack and pushes the result onto the evaluation stack as the same type.
Xor	Computes the bitwise XOR of the top two values on the evaluation stack, pushing the result onto the evaluation stack.
Shl	Shifts an integer value to the left (in zeroes) by a specified number of bits, pushing the result onto the evaluation stack.
Shr	Shifts an integer value (in sign) to the right by a specified number of bits, pushing the result onto the evaluation stack.
Shr.Un	Shifts an unsigned integer value (in zeroes) to the right by a specified number of bits, pushing the result onto the evaluation stack.

Compares

Name	Description
Ceq	Compares two values. If they are equal, the integer value 1 (int32) is pushed onto the evaluation stack; otherwise 0 (int32) is pushed onto the evaluation stack.
Cgt	Compares two values. If the first value is greater than the second, the integer value 1 (int32) is pushed onto the evaluation stack; otherwise 0 (int32) is pushed onto the evaluation stack.
Cgt.Un	Compares two unsigned or unordered values. If the first value is greater than the second, the integer value 1 (int32) is pushed onto the evaluation stack; otherwise 0 (int32) is pushed onto the evaluation stack.
Clt	Compares two values. If the first value is less than the second, the integer value 1 (int32) is pushed onto the evaluation stack; otherwise 0 (int32) is pushed onto the evaluation stack.
Clt.Un	Compares the unsigned or unordered values value1 and value2. If value1 is less than value2, then the integer value 1 (int32) is pushed onto the evaluation stack; otherwise 0 (int32) is pushed onto the evaluation stack.

Load constants

Name	Description
Ldc.I4	Pushes a supplied value of type int32 onto the evaluation stack as an int32.
Ldc.I4.0	Pushes the integer value of 0 onto the evaluation stack as an int32.
Ldc.I4.1	Pushes the integer value of 1 onto the evaluation stack as an int32.
Ldc.I4.2	Pushes the integer value of 2 onto the evaluation stack as an int32.
Ldc.I4.3	Pushes the integer value of 3 onto the evaluation stack as an int32.
Ldc.I4.4	Pushes the integer value of 4 onto the evaluation stack as an int32.
Ldc.I4.5	Pushes the integer value of 5 onto the evaluation stack as an int32.
Ldc.I4.6	Pushes the integer value of 6 onto the evaluation stack as an int32.
Ldc.I4.7	Pushes the integer value of 7 onto the evaluation stack as an int32.
Ldc.I4.8	Pushes the integer value of 8 onto the evaluation stack as an int32.
Ldc.I4.M1	Pushes the integer value of -1 onto the evaluation stack as an int32.
Ldc.I4.S	Pushes the supplied int8 value onto the evaluation stack as an int32, short form.
Ldc.I8	Pushes a supplied value of type int64 onto the evaluation stack as an int64.
Ldc.R4	Pushes a supplied value of type float32 onto the evaluation stack as type F (float).
Ldc.R8	Pushes a supplied value of type float64 onto the evaluation stack as type F (float).

Branching

Add ".S" for short form.

Name	Description
Br	Unconditionally transfers control to a target instruction.
Beq	Transfers control to a target instruction if two values are equal.
Bge	Transfers control to a target instruction if the first value is greater than or equal to the second value.
Bge.Un	Transfers control to a target instruction if the first value is greater than the second value, when comparing unsigned integer values or unordered float values.
Bgt	Transfers control to a target instruction if the first value is greater than the second value.
Bgt.Un	Transfers control to a target instruction if the first value is greater than the second value, when comparing unsigned integer values or unordered float values.
Ble	Transfers control to a target instruction if the first value is less than or equal to the second value.
Ble.Un	Transfers control to a target instruction if the first value is less than or equal to the second value, when comparing unsigned integer values or unordered float values.
Blt	Transfers control to a target instruction if the first value is less than the second value.
Blt.Un	Transfers control to a target instruction if the first value is less than the second value, when comparing unsigned integer values or unordered float values.
Bne.Un	Transfers control to a target instruction when two unsigned integer values or unordered float values are not equal.
Brfalse	Transfers control to a target instruction if value is false, a null reference (Nothing in Visual Basic), or zero.
Brtrue	Transfers control to a target instruction if value is true, not null, or non-zero.

Calling methods

Name	Description
Call	Calls the method indicated by the passed method descriptor.
Calli	Calls the method indicated on the evaluation stack (as a pointer to an entry point) with arguments described by a calling convention.
Callvirt	Calls a late-bound method on an object, pushing the return value onto the evaluation stack.
Ret	Returns from the current method, pushing a return value (if present) from the callee's evaluation stack onto the caller's evaluation stack.
Jmp	Exits current method and jumps to specified method.

Local variables

Name	Description
Ldloc	Loads the local variable at a specific index onto the evaluation stack.
Ldloc.0	Loads the local variable at index 0 onto the evaluation stack.
Ldloc.1	Loads the local variable at index 1 onto the evaluation stack.
Ldloc.2	Loads the local variable at index 2 onto the evaluation stack.
Ldloc.3	Loads the local variable at index 3 onto the evaluation stack.
Ldloc.S	Loads the local variable at a specific index onto the evaluation stack, short form.
Ldloca	Loads the address of the local variable at a specific index onto the evaluation stack.
Ldloca.S	Loads the address of the local variable at a specific index onto the evaluation stack, short form.
Stloc	Pops the current value from the top of the evaluation stack and stores it in a the local variable list at a specified index.
Stloc.0	Pops the current value from the top of the evaluation stack and stores it in a the local variable list at index 0.
Stloc.1	Pops the current value from the top of the evaluation stack and stores it in a the local variable list at index 1.
Stloc.2	Pops the current value from the top of the evaluation stack and stores it in a the local variable list at index 2.
Stloc.3	Pops the current value from the top of the evaluation stack and stores it in a the local variable list at index 3.
Stloc.S	Pops the current value from the top of the evaluation stack and stores it in a the local variable list at index (short form).

Arguments

Name	Description
Arglist	Returns an unmanaged pointer to the argument list of the current method.
Ldarg	Loads an argument (referenced by a specified index value) onto the stack.
Ldarg.0	Loads the argument at index 0 onto the evaluation stack.
Ldarg.1	Loads the argument at index 1 onto the evaluation stack.
Ldarg.2	Loads the argument at index 2 onto the evaluation stack.
Ldarg.3	Loads the argument at index 3 onto the evaluation stack.
Ldarg.S	Loads the argument (referenced by a specified short form index) onto the evaluation stack.
Ldarga	Load an argument address onto the evaluation stack.
Ldarga.S	Load an argument address, in short form, onto the evaluation stack.
Starg	Stores the value on top of the evaluation stack in the argument slot at a specified index.
Starg.S	Stores the value on top of the evaluation stack in the argument slot at a specified index, short form.

Array elements

Name	Description
Ldelem	Loads the element at a specified array index onto the top of the evaluation stack as the type specified in the instruction.
Ldelem.I	Loads the element with type natural int at a specified array index onto the top of the evaluation stack as a natural int.
Ldelem.I1	Loads the element with type int8 at a specified array index onto the top of the evaluation stack as an int32.
Ldelem.I2	Loads the element with type int16 at a specified array index onto the top of the evaluation stack as an int32.
Ldelem.I4	Loads the element with type int32 at a specified array index onto the top of the evaluation stack as an int32.
Ldelem.I8	Loads the element with type int64 at a specified array index onto the top of the evaluation stack as an int64.
Ldelem.R4	Loads the element with type float32 at a specified array index onto the top of the evaluation stack as type F (float).
Ldelem.R8	Loads the element with type float64 at a specified array index onto the top of the evaluation stack as type F (float).
Ldelem.Ref	Loads the element containing an object reference at a specified array index onto the top of the evaluation stack as type O (object reference).
Ldelem.U1	Loads the element with type unsigned int8 at a specified array index onto the top of the evaluation stack as an int32.
Ldelem.U2	Loads the element with type unsigned int16 at a specified array index onto the top of the evaluation stack as an int32.
Ldelem.U4	Loads the element with type unsigned int32 at a specified array index onto the top of the evaluation stack as an int32.
Ldelema	Loads the address of the array element at a specified array index onto the top of the evaluation stack as type & (managed pointer).
Stelem	Replaces the array element at a given index with the value on the evaluation stack, whose type is specified in the instruction.
Stelem.I	Replaces the array element at a given index with the natural int value on the evaluation stack.
Stelem.I1	Replaces the array element at a given index with the int8 value on the evaluation stack.
Stelem.I2	Replaces the array element at a given index with the int16 value on the evaluation stack.
Stelem.I4	Replaces the array element at a given index with the int32 value on the evaluation stack.
Stelem.I8	Replaces the array element at a given index with the int64 value on the evaluation stack.
Stelem.R4	Replaces the array element at a given index with the float32 value on the evaluation stack.
Stelem.R8	Replaces the array element at a given index with the float64 value on the evaluation stack.
Stelem.Ref	Replaces the array element at a given index with the object ref value (type O) on the evaluation stack.

Indirect access

Name	Description
Ldind.I	Loads a value of type natural int as a natural int onto the evaluation stack indirectly.
Ldind.I1	Loads a value of type int8 as an int32 onto the evaluation stack indirectly.
Ldind.I2	Loads a value of type int16 as an int32 onto the evaluation stack indirectly.
Ldind.I4	Loads a value of type int32 as an int32 onto the evaluation stack indirectly.
Ldind.I8	Loads a value of type int64 as an int64 onto the evaluation stack indirectly.
Ldind.R4	Loads a value of type float32 as a type F (float) onto the evaluation stack indirectly.
Ldind.R8	Loads a value of type float64 as a type F (float) onto the evaluation stack indirectly.
Ldind.Ref	Loads an object reference as a type O (object reference) onto the evaluation stack indirectly.
Ldind.U1	Loads a value of type unsigned int8 as an int32 onto the evaluation stack indirectly.
Ldind.U2	Loads a value of type unsigned int16 as an int32 onto the evaluation stack indirectly.
Ldind.U4	Loads a value of type unsigned int32 as an int32 onto the evaluation stack indirectly.
Stind.I	Stores a value of type natural int at a supplied address.
Stind.I1	Stores a value of type int8 at a supplied address.
Stind.I2	Stores a value of type int16 at a supplied address.
Stind.I4	Stores a value of type int32 at a supplied address.
Stind.I8	Stores a value of type int64 at a supplied address.
Stind.R4	Stores a value of type float32 at a supplied address.
Stind.R8	Stores a value of type float64 at a supplied address.
Stind.Ref	Stores a object reference value at a supplied address.