NetBSD master CVS tree commits

[source%NetBSD.ORG@localhost]

mrg
Wed Apr  9 06:15:15 PDT 1997
Update of /cvsroot/src/sys/arch/sparc/dev
In directory netbsd1:/var/slash-tmp/cvs-serv21805

Modified Files:
        zs.c 
Log Message:
as per discussion with torek, allow TC=1.  also add option
to allow TC=0.  the zilog documentation says not to allow
TC=0 -- however, i tested this and it "does work", as far
as i could tell, so, allow this use if so desired.