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

new copyright; att/bsd/shared

fix missing \n in mcount preamble

add CCI (tahoe) support

replace `even' and `leven' with explicit rounding

Add copyright

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

merge in dbx changes

dbx mods from linton

synchronize to version 2

lint

Restoring to unlinted version

The changes were made to allow successful linting

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 ...

forgot register save mask for _program for the vax while porting to the 68000.

typo introduced during port to mc68000.

separate machine-dependent parts to machine-specific routines
for code for main, prologues, entry, exit, epilogue, and formal entry points.

arguments to blkclr are reversed to be compatable with bzero

force setjmp and display save/restore for program statement
if there is a label declaration as there may be a non-local goto to it.

optimize display save/restore and setjmp() to be done only when needed.

get rid of GOTO and replace it with setjmp/longjmp

allowing no files list in program statement.

convert namelist structure to use unions

someone forgot to pass an argument to PCEXIT() for exit().