[syslinux] HLT when idle

[H. Peter Anvin]

Shachar Shemesh wrote:
> Hi all,
> 
> I am wondering about the following suggested change:
> In isolinux.asm, line 50 (at least in my Debian patched version), add 
> the line "hlt" inside the "DO_IDLE" macro.
> 

Breaks serial console.

	-hpa