The Art of Assembly Language, 2nd Edition

3.10 Accessing Data You've Pushed onto the Stack Without Popping It

Once in a while you will push data onto the stack and you will want to get a copy of that data's value, or perhaps you will want to change that data's value without actually popping the data off the stack (that is, you wish to pop the data off the stack at a later time). The 80x86 [reg32 + offset] addressing mode provides the mechanism for this.

Consider the stack after the execution of the following two instructions (see Figure 3-19):

push( eax );
          push( ebx );

Figure 3-19. Stack after pushing EAX and EBX

If you wanted to access the original EBX value without removing it from the stack, ...