Re: [OpenBIOS] [PATCH 8/10] Check that stdout variable is not null

[Mark Cave-Ayland]

On 09/08/11 22:55, William Hahne wrote:
> BootX will sometimes set the stdout variable to null and then
> subsequently call io-emit which can eventually result in an infinite loop.
> Index: forth/admin/iocontrol.fs
>
> --- forth/admin/iocontrol.fs (revision 1041)
> +++ forth/admin/iocontrol.fs (working copy)
> @@ -80,6 +80,7 @@
>   ;
>   : io-emit ( char -- )
> stdout @ 0= if drop exit then \ make sure stdout pointer is not null
>  io-out-char c!
>  io-out-char 1 " write" stdout @ $call-method drop
> ;

Hmmm isn't this just hiding another bug which is that the stdout 
variable/defer is being set?

ATB,

Mark.