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Index > Macroinstructions > Fasm 1.73 eqtype value like dd ?

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Roman



Joined: 21 Apr 2012
Posts: 815
Roman
I want know is this variable or not using eqtype.
How do this ?
Code:
macro A chV {
if chV eqtype dd
              Msg 'variable'
           end if
}

f1 dd 20

A 22
A f1

    
Post 16 May 2020, 15:22
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Tomasz Grysztar



Joined: 16 Jun 2003
Posts: 7797
Location: Kraków, Poland
Tomasz Grysztar
In fasmg you can extract this information using "0 metadataof" or equivalent "sizeof" operator. In fasm 1 it is not exposed directly.
Post 16 May 2020, 15:32
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Tomasz Grysztar



Joined: 16 Jun 2003
Posts: 7797
Location: Kraków, Poland
Tomasz Grysztar
Because there is no way to get this information directly in fasm 1, in its 64-bit "fastcall" macro there is the following trick used:
Code:
        virtual
         origin = $
         inc param
         load opcode byte from origin
         if opcode = 67h | opcode = 41h
          load opcode byte from origin+1
         end if
         if opcode and 0F8h = 48h
          size@param = 8
         else if opcode = 66h
          size@param = 2
         else if opcode = 0FFh
          size@param = 4
         else
          size@param = 1
         end if
        end virtual    
But it has a limited use, as it can only distinguish between DB, DW, DD and DQ labels.
Post 16 May 2020, 16:07
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Roman



Joined: 21 Apr 2012
Posts: 815
Roman
Thanks
Post 16 May 2020, 17:50
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