The stack transitional behavior, in sequential order, is:

1. The addressstored in the local variable at the specified index is pushed onto the stack.

1. The addressof the local variable at the specified index is pushed onto the stack.

The `ldloca` instruction pushes the address of the local variable number at the passed index onto the stack, where local variables are numbered 0 onwards. The value pushed on the stack is already aligned correctly for use with instructions like <xref:System.Reflection.Emit.OpCodes.Ldind_I> and <xref:System.Reflection.Emit.OpCodes.Stind_I>. The result is a managed pointer (type `&`). The local variable is stored in unmanaged memory, so the return value can be converted to an unmanaged pointer without pinning.

The stack transitional behavior, in sequential order, is:

1. The addressstored in the local variable at the specified index is pushed onto the stack.

1. The addressof the local variable at the specified index is pushed onto the stack.

The `ldloca.s` instruction pushes the address of the local variable number at the passed index onto the stack, where local variables are numbered 0 onwards. The value pushed on the stack is already aligned correctly for use with instructions like <xref:System.Reflection.Emit.OpCodes.Ldind_I> and <xref:System.Reflection.Emit.OpCodes.Stind_I>. The result is atransient pointer (type `*`).

The `ldloca.s` instruction pushes the address of the local variable number at the passed index onto the stack, where local variables are numbered 0 onwards. The value pushed on the stack is already aligned correctly for use with instructions like <xref:System.Reflection.Emit.OpCodes.Ldind_I> and <xref:System.Reflection.Emit.OpCodes.Stind_I>. The result is amanaged pointer (type `&`). The local variable is stored in unmanaged memory, so the return value can be converted to an unmanaged pointer without pinning.

The `ldloca.s` instruction provides an efficient encoding for use with the local variables 0 through 255.