No subject

[Sameer Sharma]

Hi,
Does anyone know the difference between referencing an object from the
stack versus getting an integer? I am asking this question in the context
of the folowing instructions. 

if_acmpeq
    jump if two object references are equal

    if_acmpeq <label>

Stack 
 Before 
 value1 
 value2 

 After
 ...
 ... 


Description 
if_acmpeq pops the top two object references off the stack and compares
them.




if_icmpeq
     jump if two integers are equal
Description

if_icmpeq pops the top two ints off the stack and compares them.



Isn't the stack uniquely defined to hold a particular type of values? How
is the object delimited?
Sameer
________________________________________________________________
   Sameer Sharma (Teaching Assistant-Electrical and Computer 
   Engineering)  Rutgers-The State University of New Jersey
   Tel(O):732-445-0598 (Lab):732-445-0570 (H):732-878-1815
     Address:(for correspondence)  23853 BPO WAY 
  Piscataway NJ 08854-8138 (Residence) Apt # 385 Buell Apartments 
    Busch Campus (Rutgers University)  Piscataway NJ 08855
                E-Mail:sameers@ece.rutgers.edu     
________________________________________________________________