run

unix v6 的c compiler 很老了

cc -c -O c0[012345].c
cc -c -O c1[0123].c
as c1t.s; mv a.out c1t.o
cc cvopt.c
a.out table.s table.i
as table.i; mv a.out table.o
cc -c -O c2[01].c

ed c0t.s
g/fpp =/s/1/0/
w
q
as c0t.s; mv a.out c0t.o
cc -s -n c0?.o
cmp a.out /lib/c0
cp a.out /lib/c0

ed c0t.s
g/fpp =/s/0/1/
w
q
as c0t.s; mv a.out c0t.o
cc -f -s -n c0?.o
cmp a.out /lib/fc0
cp a.out /lib/fc0

cc -s -n c1?.o table.o
cmp a.out /lib/c1
cp a.out /lib/c1

cc -f -s -n c1?.o table.o
cmp a.out /lib/fc1
cp a.out /lib/fc1

cc -s -n c2?.o
cmp a.out /lib/c2
cp a.out /lib/c2

rm *.o table.i a.out