dear sir

i am using sdcc compiler in my 8051 based project
  first i need to convert my assembly code to suit the sdcc assembler
  so that from now onwards i will write modules in C and linkup with the assembly code
  i am in the process of converting my previous code with sdcc assemblers
  but i got stuck up with macros
  my code consists of so many macros
  but i didn't find how to use macros in sdcc assembler
  PLEASE HELP ME IN HOW TO USE MACROS IN SDCC "ASSEMBLER"
  is macros available in the sdcc assembler
  i had used the macros with my assembler as shown below:


MACRO DEFINING:

  add_regs:  MACRO     arg1,arg2,arg3
           mov     a,arg1
           add     a,arg2
           mov     arg3,a
           MACEND         

 
example:
MACRO USE IN CODE:
         mov     r1,#20h
         mov     r2,#10h
         add_regs  r1,r2,r3
            ret


  please reply immediately as i got stuck up with the problem
  i am waiting for the reply sir
 
  with regards
  trivikram