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Literalizing the '#' character in #define

Steve Mutschler

The C51 pre-processor treats the "#" character as the "Stringize" operator. How do I override this operator when desired?

For example:

#define X mov A,#10

Expands to:
mov A,10

How can I force a literal expansion of the "#" character such that the above macor expands to:
mov A,#10

Thanks.

Parents
  • 0 in reply to Steve Mutschler

    hi,

    Regardless, it would still be useful to know if it possible to generate a "#" from within a #define macro when using the Ax51 assembler.

    If you use the assembler and needs with such definitions then I suggest you to use macro. For example:

    XCOM	MACRO
	mov A,#10
	ENDM
    Now you may use macro XCOM anywhere in assembly file. And no #define needs.

    If you use C-language and need define some assembly commands which will be used somewhere then I may suggest next way:
    - define it as C-macro:
    #define XCOM(x) MOV A,x
//... somewhere in program:
#pragma ASM
XCOM(#10)
#pragma ENDASM

    Regards,
    Oleg

Reply
  • 0 in reply to Steve Mutschler

    hi,

    Regardless, it would still be useful to know if it possible to generate a "#" from within a #define macro when using the Ax51 assembler.

    If you use the assembler and needs with such definitions then I suggest you to use macro. For example:

    XCOM	MACRO
	mov A,#10
	ENDM
    Now you may use macro XCOM anywhere in assembly file. And no #define needs.

    If you use C-language and need define some assembly commands which will be used somewhere then I may suggest next way:
    - define it as C-macro:
    #define XCOM(x) MOV A,x
//... somewhere in program:
#pragma ASM
XCOM(#10)
#pragma ENDASM

    Regards,
    Oleg

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