[syslinux] x86 in/out instructions in com32

[H. Peter Anvin]

Miguel wrote:
> I am writing a pxelinux com32 program to control a piece of hardware.
> 
> I need to execute some processor in & out instructions to talk to
> registers on the hardware.
> 
> I looked around but did not see anything in the syslinux ./lib or
> ./libutil directories that would do IO ... but maybe I missed something
> ...
> Q: Are there com32 functions for reading/writing x86 processor IO ports ?

<sys/io.h> should have what you need.

	-hpa