Macro itself substitutes AL or AX or EAX. How ?

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Roman

Joined: 21 Apr 2012
Posts: 2022

Roman 28 Mar 2014, 11:08

Code:

macro .  chDest,chVal { mov eax,chVal
                                  mov [chDest],eax
                    }

Work good if i put dword Value.

Code:

. Life,0xffff

But how work with byte or word or qword ?

Code:

. Life, byte 100  or . Life, qword 0xffffffffffff

Does not want to make a few macros ! For byte or for qword value.
I want one universal macro Smile

28 Mar 2014, 11:08

revolution
When all else fails, read the source

Joined: 24 Aug 2004
Posts: 20761
Location: In your JS exploiting you and your system

revolution 28 Mar 2014, 11:35

Not sure what you are trying to do actually, but this appears to be what you are asking for:

Code:

macro . dest,val {mov [dest],val }

BTW: A single dot is a special character inside struc macros.

28 Mar 2014, 11:35

tthsqe

Joined: 20 May 2009
Posts: 767

tthsqe 28 Mar 2014, 11:37

roman, after reading the fasm pdf, I think the eqtype operator will be good for you. something like

Code:

if chVal eqtype byte 0
   ; use al/ah
elseif chVal eqtype word 0
  ; use ax
elseif chVal eqtype dword 0
  ; use eax
...

Hopefully a more experienced fasmer can comment on this operator.

EDIT: i thiks revolution's answer doesn't work for qwords

28 Mar 2014, 11:37

Roman

Joined: 21 Apr 2012
Posts: 2022

Roman 28 Mar 2014, 12:07

Thanks tthsqe

28 Mar 2014, 12:07

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