eqtype value like dd ?

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Roman

Joined: 21 Apr 2012
Posts: 1796

Roman 16 May 2020, 15:22

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

16 May 2020, 15:22

Tomasz Grysztar

Joined: 16 Jun 2003
Posts: 8354
Location: Kraków, Poland

Tomasz Grysztar 16 May 2020, 15:32

In fasmg you can extract this information using "0 metadataof" or equivalent "sizeof" operator. In fasm 1 it is not exposed directly.

16 May 2020, 15:32

Tomasz Grysztar

Joined: 16 Jun 2003
Posts: 8354
Location: Kraków, Poland

Tomasz Grysztar 16 May 2020, 16:07

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.

16 May 2020, 16:07

Roman

Joined: 21 Apr 2012
Posts: 1796

Roman 16 May 2020, 17:50

Thanks

16 May 2020, 17:50

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