Useful macro

[rags]

Here is a macro I like to use when I have to set one or more registers to zero.
Nothing spectacular, but useful to me, and helps make my code more readable to me. :bg

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Clear MACRO args:VARARG
    FOR p,<args>
        xor p, p
    ENDM
ENDM



Usage:

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Clear EAX


or

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Clear EAX, ECX, EDX


I hope this little macro is as useful to others as it is to me.

regards,
     Rags

[stanhebben]

This is my most commonly used macro:

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debug macro args:vararg
  pushad
  % print args
  popad
endm
Actually, this one should really be included in the masm macros, I define it in every source file I have.

Usage note: if you use formatting macros like str$, ustr$, hex$, etc, surround them with <>. For example:

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  debug "Register eax: "
  debug <ustr$(eax)>, 13, 10


This allows you to quickly set up debug points. I tracked down many bugs this way.