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need help for using keil microvision4 and realview compiler

plaes someone help me for writing code in assembly language in keil m4.20 . my compiler is realviw 4.13. Before i used the keil mv3 and carm compiler. my question is this how can i write start of a program in keil mv3 it is

PUBLIC INI,CODE,READWRITE
PUBLIC ?C?INIT
?C?INIT
MOV R0,#00H
MOV R1,#01H
ADD R2,R1,R0
NOP
END

this successfully compiled in keil mv3. how can i write these assembly programs in keil 4 using realview. I used the example from help manual that is

AREA     ARMex, CODE, READONLY
                                ; Name this block of code ARMex
        ENTRY                   ; Mark first instruction to execute
start
        MOV      r0, #10        ; Set up parameters
        MOV      r1, #3
        ADD      r0, r0, r1     ; r0 = r0 + r1
stop
        MOV      r0, #0x18      ; angel_SWIreason_ReportException
        LDR      r1, =0x20026   ; ADP_Stopped_ApplicationExit
        SVC      #0x123456      ; ARM semihosting (formerly SWI)
        END                     ; Mark end of file

when compiling this it shows this error

assembling TEST.S...
TEST.S(1): error: A1163E: Unknown opcode ARMex, , expecting opcode or Macro
TEST.S(3): error: A1105E: Area directive missing
TEST.S(3): warning: A1088W: Faking declaration of area AREA |$$$$$$$|
TEST.S - 2 Error(s), 1 Warning(s).

please help! or suggest me how to study these from some training manual .