> DOS "write string" (function 9) uses '$' (24h) as the string terminator.
> Silly holdover from long ago...

Well every string termination is silly basically. I'd prefer the pascal
style strings with the length in front so that before you process the string
you know how much memory you have to occupy etc. Also for that the string
length determination is muuuch easier :-)

Tamas


On 11/16/06, William Couture <bcouture@gmail.com> wrote:
>
> On 11/16/06, Peter P. <plpeter2006@yahoo.com> wrote:
> > William Couture <bcouture <at> gmail.com> writes:
> >
> >
> > > Er... I'm not sure what you mean by "in what language".  The original
> poster
> > > talked about an Assembly to C translator, and I talked about my .ASM
> > > (Assembly) programs.
> >
> > Er ... how many CPUs do you know ?
>
> Quite a few.
>
> Sorry, I didn't realize until now that you were referring to which
> processor,
> not "what langauge".  It's x86 assembly.
>
> > > As for using #define macros, that isn't even close.  For a trivial
> .ASM
> > > program:
> > >
> > >       org   100h
> > >       assume cs:code,ds:code,ss:code,es:code
> > > entry:
> > >       mov  ah,9
> > >       mov  dx,offset message
> > >       int    21h
> > >       mov  ax,4c00h
> > >       int    21h
> > > message:
> > >       db    "Hello, World!",0dh,0ah,24h
> > > end
> > >
> > > would become the C program:
> > >    #include <stdio.h>
> > >    main()
> > >        {
> > >        puts("Hello, World!");
> > >        exit(0);   /* optional */
> > >        }
> >
> > I think that it would become more something along the lines of:
> >
> > void main(void) {
> >   char  v_ah;
> >   short v_dx, v_ax;
> >
> > // srcfile.asm:someline
> > l_entry:
> >   v_ax = 9;
> >   v_dx = s_message;
> >   f_int21h();
> >
> >   v_ax = 0x4c00;
> >   f_int21h();
> > }
> >
> > // INITIALIZED DATA
> > // srcfile.asm:someline db    "Hello, World!",0dh,0ah,24h
> > char s_message[] = "Hello, World!" '\x0d' '\x0a' '\x24' '\0';
> >
> > //end
>
> I wouldn't pay for that level of "translation" -- it would be worse
> than useless.
>
> > By the way, what's the 0x24 for ? I am not aware of this control
> character being
> > used for something (or I forgot about it - I did very little x86
> assembly).
>
> DOS "write string" (function 9) uses '$' (24h) as the string terminator.
> Silly holdover from long ago...
>
> Bill
>
> --
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