🚀 go-pugleaf

Though I've done enough 86/286 asm in past, I'm new to the 386.
I've scanned assorted books/manuals on 386 asm.  I want to use
32-bit segments, but I'm not sure how to set them up.  Getting
the assembler to assume 32-bit segments is easy enough, but it
has much the same effect as an ASSUME for segment registers (you
still need to stuff the segregs with the ASSUME'd value).  How
do I actually make the seg's function in 32-bit mode?  Can this
be done in real mode, or do I need to go to all the grief of
figuring out how to cope with protected mode?
 
Code samples much appreciated, as are any pointers to a FAQ
that covers this.  I've scanned some FTP sites like Simtel for
help, and haven't had any luck.
 
Thanx in advance
                Reid