[FASM1] Calculating the number of generated bytes

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DimonSoft

Joined: 03 Mar 2010
Posts: 1228
Location: Belarus

DimonSoft 01 Dec 2019, 17:29

Suppose we have code that goes like this:

Code:

Start:
        db 5

        org 1000
        db 10
End:

How can we find out how many bytes are generated between Start and End labels? End - Start will obviously not work returning 1001 instead of 2.

01 Dec 2019, 17:29

Tomasz Grysztar

Joined: 16 Jun 2003
Posts: 8367
Location: Kraków, Poland

Tomasz Grysztar 01 Dec 2019, 17:36

The way formatter in fasm 1 works, it is not possible to provide a symbol like fasmg's $%, at least not in general. It could be possible to implement it only for "format binary", but not for the other ones.

Therefore the only available option at the moment it to override ORG with macro and keep track of all addressing space changes. Or switch to fasmg if this is viable.

01 Dec 2019, 17:36

edfed

Joined: 20 Feb 2006
Posts: 4354
Location: Now

edfed 02 Dec 2019, 10:50

maybe there, as you know what to count, you can take into account the org you defined.

Code:

somewhere=1000
Start:
db 5

org somewhere
db 10
End:

count = End-Start-somewhere

02 Dec 2019, 10:50

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