section_align   = 0x1000
file_align      = 0x200
adjust          = section_align-file_align

display 'start', <rva __start - adjust %%H    

macro section attrs
 {
        local secnum,rawsize,secsize,filesize,heresec
        section_align   = 0x1000
        file_align      = 0x200

        if defined heresec | ~ defined _secnum
                heresec:
                secnum = 1
                filesize = $-$$
                if filesize > 0
                        ; previosly defined data, default section was created
                        secnum = 2
                        filesize = (filesize + file_align) and not (file_align-1)
                end if
                filesize = file_align + filesize
        else
                secnum  = _secnum
                rawsize = $ - _secbase
                secsize = (rawsize + section_align) and not (section_align-1)
                filesize= (rawsize + file_align) and not (file_align-1)
                filesize=_filesize + filesize
        end if
        section attrs
        _secnum = secnum + 1
        _secbase = $$
        _filesize = filesize
 }

macro get_fo addr
 {
        local off
        section_align   = 0x1000
        file_align      = 0x200

        if ~ addr eq
                off = addr
        else
                off = $
        end if
        if ~defined _secnum
                ; simple formula for default single section
                _fileoffset = off - $$ + file_align
        else
                ; calculated from sections statistics
                if $$ <> _secbase
                        display 'current base is different from the section base' __err
                end if
                _fileoffset = off - $$ + _filesize
        end if
 }