Code:

    macro outb v1,v2
    {
       mov   al,v1
       out   dx,al
       mov   al,v2
       inc   dx
       out   dx,al
       dec   dx
    }    

    macro outb v1,v2
    {
       mov   ax,v2 shl 8 + v1
       out   dx,ax
    }    

@@setcrtc:


;
; set CRTC start
;
; for some reason, my XT's EGA card doesn't like word outs to the CRTC
; index...
;
        mov     cx,[crtc]
        mov     dx,CRTC_INDEX
        mov     al,0ch          ;start address high register
        out     dx,al
        inc     dx
        mov     al,ch
        out     dx,al
        dec     dx
        mov     al,0dh          ;start address low register
        out     dx,al
        mov     al,cl
        inc     dx
        out     dx,al
     

I plan to put it in standard DOS package, just as FASMW is included in the Win32 one. What's your opinion?

- Mention the memory management of FASM in DOS in the manual
(runs on DPMI if available, in unreal mode otherwise,
will NOT run on EMM386 if no DPMI)

-- Directory browse would be nice (not trivial to write I know )

-- Compiling: Add a menu "Compile only" & "Compile and run" (immediate
execution is risky)

It is mentioned in FASM.TXT, section 1.1.1.

All versions require the x86 architecture
32-bit processor (at least 80386),
although they can produce programs for
the x86 architecture 16-bit processors,
too. DOS version requires an OS compatible 
with MS DOS 2.0 and either true
real mode environment or DPMI. 
Windows version requires a Win32 console
compatible with 3.1 version.