Hi:
    
      I  am  a  
student  who  major  in  Computer  Science , and  
I  have  a  project  for  porting  GCC  
to  a  Java  chip  
      However , when I  start  to  porting  
with  some  implementations , I  encounter some problems  
that  bothering  me .
      I know that there may even be 
people working on similar ports,   so  
I  write  this mail to  you  
wishing   to   get   some   

      help  from  you  
about   the  following  questions . I  hope  
it  would  not   bother  
you   too  much !
 
1.In some porting reports , they indicate that 
it is easy to add a new machine description  to GCC --just add a few lines 
to  
   
"configure.in", but when I try to do it , I 
find that I have to create my javachip.h(tm.h) 
&javachip.c(tm.c)&javachip.md(.md
    file) first in 
order  to   avoid 
some unexpecting problems.Is it correct ? I mean that whether I have to handle  1.configure.in 

    2.tm.h 3.tm.c  
4. md file   at the same 
time.
2. In order to achieve the porting task , do I 
have to rewrite any source code file in GCC , or all I have to do is to handle 
the 
    four files above mentioned 
?

3. Suppose that I have a sample test program 
test.c     //test.c     
main()     {         
int  i;         
i=99;     }     Because I do not have a 
cross-assembler & a cross-linker,all I want to do     is 
porting GCC to make it compile test.c to generate test.s (source code 
    level ).       //test.s
      
...       ...       
ldc  99       
...       ...      I do not 
care the other directives in test.s as long as GCC can generate 
     the instruction " ldc  99 
".      
 
     Therefore, in order to 
achieve the task above mentioned . What files should      
I have to modify ? And how should I do it ? Could you please give me 
some      detailed steps or illustrations ? 
     (Host: 
i386-Linux , Build: 
i386-Linux,Target: javachip-none)
     Thanks anyway 
!!    
                                                                     
Edward< s892403@ccit.edu.tw >