CW6.3 Assembler - Problem with conditional assembly directives

bigmac — Fri, 03 Feb 2012 15:31:36 GMT

Hello all,

CW assembler has a rich set of conditional assembly directives. I typically would utilize something like the following construct to prevent the multiple definition of a particular label -

ifndef LABEL_NAME

LABEL_NAME equ <expression>

endif

ifndef LABEL_NAME

LABEL_NAME:

[<assembly instructions, macros, data, etc>] ; Optional

endif

These examples seem to work just fine. However, the problem seems to be when the label refers to a macro definition. The label name remains undefined, resulting in error messages about duplicate macro definitions.

  include "908_macros.inc"    ifndef  ILOP ILOP:     MACRO     ; Reset MCU using illegal opcode          DC.B  $8D          ENDM  endif

The above does not work if the macro is also defined with the file "908_macros.inc". The only work-around that I so far have been able to find, is to create a dummy label, in addition to the macro name.

  include "908_macros.inc"    ifndef  _ILOP _ILOP:    ; Reset MCU using illegal opcodeILOP:     MACRO          DC.B  $8D          ENDM  endif

However, in addition to being unwieldy, this method becomes problematic should the include be not modifiable to provide the dummy variable, e.g. such as "derivative.inc".

I wonder if others, who make extensive use of assembly macros, have previously encountered this problem, and perhaps have an alternative "fix". Maybe this is a bug in the assembler, that has never been fixed, or perhaps this was intentional in the design of the assembler.

Regards,

Mac

Re: CW6.3 Assembler - Problem with conditional assembly directives

sebasira — Fri, 03 Feb 2012 20:15:07 GMT

As you, I'm facing the same problem since many years ago... I always need to create a label for every macro definition. That's in CW 3.1, 4.6 and also 6.1

Maybe a solution or fix can help us both!

regards

topic CW6.3 Assembler - Problem with conditional assembly directives in CodeWarrior for MCU

CW6.3 Assembler - Problem with conditional assembly directives

Re: CW6.3 Assembler - Problem with conditional assembly directives