4.4BSD snapshot (revision 8.1); add 1993 to copyright

new copyright; att/bsd/shared

replace `even' and `leven' with explicit rounding

null pointer checks (from ralph)

Add copyright

must check for NIL pointer

changes from donn@utah-cs for common header file for pcc

synchronize to version 2

merge in conformant array code by Carol Nishizak

Restoring to unlinted version

The changes were made to allow successful linting

fix the type of the address of a formal call etnry address.

it says in my description of the ir that STASG's have the type
pointer to structure. this makes a difference for the FORCE in fend.c
on the mc68000.

clean up temporary allocation, moving everything relevant to
tmps.c and (new) tmps.h. correctly emit LBRAC lines. allocate registers
from high to low. put in data structures for multiple types of

clean up temporary allocation, moving everything relevant to
tmps.c and (new) tmps.h. correctly emit LBRAC lines. allocate registers
from high to low. put in data structures for multiple types of registers.

show more ...

postcheck() takes struct nl *'s, not p2types.

put in explicit scalar converts (sconv's) to make less code-generator dependent.

convert namelist structure to use unions

rmdel -r1.16

copy formal descriptor to a local (so it's addressable) for FRTN.

put display save area back into formal routine structure

formal functions need not be at the current level; just a bug.

add storage classes to namelist, and use them.

dynamically allocate display save areas before formal calls

also check that for variables are not passed as var parameters.

add sextname() to make up long external names for things.