.addon

Allows for client event registration

.assembly

Used to reference assemblies and define information about assemblies

.class

Defines types

.corflags

Documents the portable execution information

.custom

Adds attributes information

.data

Defines a data segment

.entrypoint

Defines the first method called on entry into an assembly

.event

Defines an event

.export

Defines the name for an exported method

.field

Defines a field of a class

.file

References a file

.fire

Defines a method that can raise an event

.get

Retrieves a property value

.hash

Creates or shows the algorithm used for a hash

.locale

Defines the culture

.locals

Defines local variables

.maxstack

Defines the maximum number of values on the stack

.method

Adds a method to a class

.mresource

Adds resource information

.namespace

Groups code into a logical entity

.override

Defines a method that overrides a base method

.pack

States field boundary size

.permission

Defines security information

.permissionset

Defines security information on multiple resources

.property

Defines a class property

.publickey

States the public key used to sign the assembly

.publickeytoken

Contains 8 bytes of the reference key assembly

.removeon

Unregisters an event

.set

Sets the value on a property

.size

Defines a block of memory in a class

.subsystem

Defines user interaction preference

.try

Enters a try block

.ver

States the current version or desired version

.ventry

States the slot a method should be in a vtable

.vtfixup

Defines a vtable for exported methods

Add

Adds two values on the stack and pushes the results on the stack

And

Performs a logical AND and pushes the results on the stack

Arglist

Gets variable argument list for a vararg method

Beq

Breaks to a code label if the two top values on the stack are true

Bge

Breaks to a code label if the second-most top value is greater than or equal to the value on top of the stack

Bgt

Breaks to a code label if the second-most top value on the stack is greater than the top value

Ble

Breaks to a code label if the second-most top value is less than or equal to the top stack value

Blt

Breaks to a code label if the second-most top value is less than the top stack value

Bne.un

Breaks to a code label if the two top values are not equal

Box

Turns a value type into a reference type

Br

Breaks to a code label unconditionally

Brfalse

Breaks to a code label if the top stack value is false

Brtrue

Breaks to a code label if the top value is true

Call

Calls an instance method and does not throw an exception if the value is on the stack

Calli

Calls a method via a function pointer

Callvirt

Calls an instance method and throws an exception if the reference is not on the stack

Castclass

Checks to a see if a reference type is a specific type and pushes the result on the stack; throws an exception on failure

Ceq

Compares two values for equality and pushes the results on the stack

Cgt

Compares the two top values on the stack to see if the second-most top value is larger

Ckfinite

Checks for divide-by-zero conditions

Clt

Compares the two top values on the stack to see if the second value is smaller

Conv

Converts a value to the appended type

Cpblk

Copies data from one memory location to another

Cpobj

Takes the value at one address and copies it to the another address

Div

Divides the two top values on the stack and pushes the result

Dup

Duplicates the current value on the stack

Endfault

Signals the end of a catch block

Endfinally

Signals the end of a finally block

Initblk

Initializes a block of memory

Isinst

Checks to see if a reference is of a specific type and pushes the results on the stack; returns null on failure

Jmp

Calls a method with the same argument values as the current method and then terminates the current method execution

Ldarg

Loads an argument value on the stack

Ldc

Loads a loads a specific value on the stack

Ldelem

Retrieves an element in an array and pushes it on the stack

Ldelma

Gets the address of an element in an array and pushes it on the stack

Ldfld

Loads an instance field's value on the stack

Ldftn

Loads a function pointer on the stack

Ldind

Retrieves a value given an address; the type is defined after the opcode

Ldlen

Pushes the length of an array on the stack

Ldloc

Loads a variable's value on the stack

Ldloca

Loads a variable's address on the stack

Ldnull

Loads a null reference on the stack

Ldobj

Gets values from an address on the stack and pushes the result on the stack

Ldsfld

Loads the value of a static field or an instance field on the stack

Ldstr

Loads a string on the stack

Ldvirftn

Loads a function pointer on the stack

Leave

Leaves a try block

Mul

Multiplies two values on the stack and pushes the result

Newarr

Creates a new array

Newobj

Creates a new instance of an object

Nop

Does nothing; no opcode

Not

Performs the NOT binary operation on the topmost stack value and pushes the result

Or

Performs an OR binary operation on two stack values and pushes the results

Rem

Divides two values on the stack and pushes the remainder on the stack

Ret

Ends execution of a method and returns the topmost value on the stack

Shl

Performs a shift left operation

Shr

Performs a shift right operation

Sizeof

Calculates the size of a value type and pushes the result on the stack

Stelem

Takes a value on the stack and places it in an array

Stdfld

Stores the value of an instance field on the stack

Stind

Stores a value in a local variable given an address

Stloc

Stores a value on the stack

Stobj

Stores a value on the stack in the value defined by an address

Stsfld

Stores a value on the stack in either a static field or an instance field

Sub

Subtracts two values on the stack and pushes the result

Switch

Defines a jump table

Tail

Calls a method, and then terminates the current method

Throw

Throws an exception

Unaligned

States that the next address is unaligned

Unbox

Turns a reference type into a value type