More on macro input parameters and return code

Access to the parameter list
  MACRO PAWEX08A                                    PAW > exe pawex08a 23 9
  i = 10                                                  23 squared is 529
1 FOR p IN [*] [i] 1 2                                    9 squared is 81                      
    sq = [p] * [p]                                        10 squared is 100
    message [p] squared is [sq]                           1 squared is 1
  ENDFOR                                                  2 squared is 4

Indexed positional parameters
  MACRO PAWEX08B                                    PAW > exe pawex08b 23 9 48
2 DO i = 1, [#]                                          parameter 1 is 23                     
3   message parameter [i] is [%i]                         parameter 2 is 9                     
  ENDDO                                                   parameter 3 is 48

EXITM return code
  MACRO PAWEX08C                                    PAW > exe pawex08c
    MESSAGE At first, '[@]' = [@]                         At first, [@] = 0
    EXEC EXIT2                                            Macro EXIT2: NUM ? 25
    IF [@] = 0 THEN                                       Number too large
       MESSAGE Macro EXIT2 successful                     Error in EXIT2 : 5
    ELSE                                            PAW > exe pawex08c
       MESSAGE Error in EXIT2 : [@]                       At first, [@] = 0
    ENDIF                                                 Macro EXIT2: NUM ? 16
  RETURN                                                  Macro EXIT2 successful

  MACRO EXIT2
    READ NUM
    IF [NUM] > 20 THEN
       MESSAGE Number too large
       EXITM [NUM]-20
    ELSE
       VEC/CRE VV([NUM])
    ENDIF
  RETURN