In SX Microcontrollers, SX/B Compiler and SX-Key Tool, peterverkaik wrote:

I think I know what is going wrong.
Look at this listing

     1  07F8  0F7F      device          SX28,oschs1,turbo,stackx,optionx        ;sx device options
     2  =00000000       irc_cal         IRC_SLOW
     3  =02FAF080       freq            50_000_000                              ;cpu frequency
     4  07FF  0A05      reset           main
     5                  expand
     6                  
     7                  Assign2 macro   Name            ;create a macro
     8                  ifndef I??Name
     9                          org     $
    10                  I??Name
    11                          jmp     @Name   ;create this label from the parameter passed
    12                  else
    13                          org     $
    14                  endif
    15                  endm                            ;done
    16                  
    17                  Assign  macro   Name            ;create a macro
    18                  ifndef I??Name          ;test for the modified parameter passed already exists
    19                  I??Name
    20                          jmp     @??Name ;create this label from the parameter passed
    21                  endif
    22                  endm                            ;done
    23                  
    24  =00000000               org 0
    25                  ;Assign rx1
    26                  ;Assign rx2
    27                  Assign2 rx1
    28               m  ifndef Irx1
    29               m          org     $
    30               m  Irx1
    31               m          jmp     @rx1    ;create this label from the parameter passed
    32               m  else
    33  =00000000    m          org     $
    34               m  endif
    36  =00000002       rx1
    37  0000  0C01              mov     w,#1
    38  =00000003       rx2
    39  0001  01C4              add     w,fsr
    40  0002  000C              ret
    41  =00000005       main
    42  0003  0A05              jmp     main

Cross Reference
9 symbols

Symbol                            Type   Value      Line
__SASM                            DATA   00000001   0000
__SX_FREQ                         DATA   02FAF080   0003
__SX_IRC_CAL                      DATA   00000000   0002
__SX_RESET                        RESB   00000A05   0004
fsr                               RESV   00000004   0039
Irx1                              ADDR   00000000   0030
main                              ADDR   00000005   0041
rx1                               ADDR   00000002   0036
rx2                               ADDR   00000003   0038

The label Irx1 does not exist when calling Assign2, so it gets created (but no code).
On the second pass the label exist and the else clause is executed (does generate code).


regards peter

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