[Gambas-user] Re: Script error 'jump too far' ????

[Benoît Minisini <benoit.minisini@xxxxxxxxxxxxxxxx>]

Le 03/03/2024 à 18:20, Brian G a écrit :
> On 3/3/24 08:17, Brian G wrote:
> > I have started getting this error on my larger scripts
> >
> > # Gambas module file : MMain:13575:14: Jump is too far
> >
> > 13575*:        wend
> >                     ^ Jump is too far
> >
> >
> > Any idea, is there a limit somewhere?
> >
> > Benoit?
> Ok I found this in the compiler, It seems to indicate that no single 
> block of code can be larger than 32k when compiled?
>
> void CODE_jump_length(ushort src, ushort dst)
> {
>      if (src >= (cur_func->ncode - 1))
>          return;
>
>      int diff = (int)dst - (int)src;
>
>      if (diff < -32768 || diff > 32767)
>          THROW("Jump is too far");
>
>      if (cur_func->code[src] == C_BREAK)
>          cur_func->code[src + 2] = (short)(diff - 3); //dst - (src + 2) 
> - 1;
>      else if (cur_func->code[src] == C_NOP)
>          cur_func->code[src] = (short)diff; //dst - src;
>      else
>          cur_func->code[src + 1] = (short)(diff - 2); //dst - (src + 1) 
> - 1;
> }
>
> I am guessing there is no work around for this?

No, this is a bytecode limit. This usually means that your function is 
far too big! Are your code written by hand or generated?

--
Benoît Minisini.

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