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.

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.

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.

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.