diff --git a/mach/6500/as/Makefile b/mach/6500/as/Makefile
index 012b03822..695d2b20e 100644
--- a/mach/6500/as/Makefile
+++ b/mach/6500/as/Makefile
@@ -6,14 +6,14 @@ CPP	= $(EM)/lib/cpp
 DEF	=
 
 FFLAG	=
-CFLAGS	= $(FFLAG) -O -I$h $(DEF)
+CFLAGS	= $(FFLAG) -O -I. -I$h $(DEF)
 YFLAGS	= -d
 LDFLAGS	= $(FFLAG) -i
 
 CSRC	= $(CDIR)/comm3.c $(CDIR)/comm4.c $(CDIR)/comm5.c \
 	  $(CDIR)/comm6.c $(CDIR)/comm7.c $(CDIR)/comm8.c
-COBJ	= $(CDIR)/comm3.o $(CDIR)/comm4.o $(CDIR)/comm5.o \
-	  $(CDIR)/comm6.o $(CDIR)/comm7.o $(CDIR)/comm8.o
+COBJ	= comm3.o comm4.o comm5.o \
+	  comm6.o comm7.o comm8.o
 MACH	= mach0.c mach1.c mach2.c mach3.c mach4.c mach5.c
 COMM	= $(CDIR)/comm0.h $(CDIR)/comm1.h $(CDIR)/comm2.y $(CSRC)
 
@@ -37,7 +37,7 @@ as:	$(COBJ) as.o
 	$(CC) $(LDFLAGS) $(COBJ) as.o -o as
 
 as.y:	$(CDIR)/comm2.y
-	$(CPP) -P -I$h $(DEF) $(CDIR)/comm2.y >as.y
+	$(CPP) -P -I. -I$h $(DEF) $(CDIR)/comm2.y >as.y
 	@echo "expect 1 shift/reduce conflict"
 
 lint:   $(CSRC) as.c
@@ -51,3 +51,15 @@ as.y:		mach2.c
 comm3.o:	mach3.c
 as.y:		mach4.c
 comm8.o:	mach5.c
+comm3.o:	$(CDIR)/comm3.c
+		$(CC) -c $(CFLAGS) $(CDIR)/comm3.c
+comm4.o:	$(CDIR)/comm4.c
+		$(CC) -c $(CFLAGS) $(CDIR)/comm4.c
+comm5.o:	$(CDIR)/comm5.c
+		$(CC) -c $(CFLAGS) $(CDIR)/comm5.c
+comm6.o:	$(CDIR)/comm6.c
+		$(CC) -c $(CFLAGS) $(CDIR)/comm6.c
+comm7.o:	$(CDIR)/comm7.c
+		$(CC) -c $(CFLAGS) $(CDIR)/comm7.c
+comm8.o:	$(CDIR)/comm8.c
+		$(CC) -c $(CFLAGS) $(CDIR)/comm8.c
diff --git a/mach/6800/as/Makefile b/mach/6800/as/Makefile
index 012b03822..695d2b20e 100644
--- a/mach/6800/as/Makefile
+++ b/mach/6800/as/Makefile
@@ -6,14 +6,14 @@ CPP	= $(EM)/lib/cpp
 DEF	=
 
 FFLAG	=
-CFLAGS	= $(FFLAG) -O -I$h $(DEF)
+CFLAGS	= $(FFLAG) -O -I. -I$h $(DEF)
 YFLAGS	= -d
 LDFLAGS	= $(FFLAG) -i
 
 CSRC	= $(CDIR)/comm3.c $(CDIR)/comm4.c $(CDIR)/comm5.c \
 	  $(CDIR)/comm6.c $(CDIR)/comm7.c $(CDIR)/comm8.c
-COBJ	= $(CDIR)/comm3.o $(CDIR)/comm4.o $(CDIR)/comm5.o \
-	  $(CDIR)/comm6.o $(CDIR)/comm7.o $(CDIR)/comm8.o
+COBJ	= comm3.o comm4.o comm5.o \
+	  comm6.o comm7.o comm8.o
 MACH	= mach0.c mach1.c mach2.c mach3.c mach4.c mach5.c
 COMM	= $(CDIR)/comm0.h $(CDIR)/comm1.h $(CDIR)/comm2.y $(CSRC)
 
@@ -37,7 +37,7 @@ as:	$(COBJ) as.o
 	$(CC) $(LDFLAGS) $(COBJ) as.o -o as
 
 as.y:	$(CDIR)/comm2.y
-	$(CPP) -P -I$h $(DEF) $(CDIR)/comm2.y >as.y
+	$(CPP) -P -I. -I$h $(DEF) $(CDIR)/comm2.y >as.y
 	@echo "expect 1 shift/reduce conflict"
 
 lint:   $(CSRC) as.c
@@ -51,3 +51,15 @@ as.y:		mach2.c
 comm3.o:	mach3.c
 as.y:		mach4.c
 comm8.o:	mach5.c
+comm3.o:	$(CDIR)/comm3.c
+		$(CC) -c $(CFLAGS) $(CDIR)/comm3.c
+comm4.o:	$(CDIR)/comm4.c
+		$(CC) -c $(CFLAGS) $(CDIR)/comm4.c
+comm5.o:	$(CDIR)/comm5.c
+		$(CC) -c $(CFLAGS) $(CDIR)/comm5.c
+comm6.o:	$(CDIR)/comm6.c
+		$(CC) -c $(CFLAGS) $(CDIR)/comm6.c
+comm7.o:	$(CDIR)/comm7.c
+		$(CC) -c $(CFLAGS) $(CDIR)/comm7.c
+comm8.o:	$(CDIR)/comm8.c
+		$(CC) -c $(CFLAGS) $(CDIR)/comm8.c
diff --git a/mach/6805/as/Makefile b/mach/6805/as/Makefile
index 012b03822..695d2b20e 100644
--- a/mach/6805/as/Makefile
+++ b/mach/6805/as/Makefile
@@ -6,14 +6,14 @@ CPP	= $(EM)/lib/cpp
 DEF	=
 
 FFLAG	=
-CFLAGS	= $(FFLAG) -O -I$h $(DEF)
+CFLAGS	= $(FFLAG) -O -I. -I$h $(DEF)
 YFLAGS	= -d
 LDFLAGS	= $(FFLAG) -i
 
 CSRC	= $(CDIR)/comm3.c $(CDIR)/comm4.c $(CDIR)/comm5.c \
 	  $(CDIR)/comm6.c $(CDIR)/comm7.c $(CDIR)/comm8.c
-COBJ	= $(CDIR)/comm3.o $(CDIR)/comm4.o $(CDIR)/comm5.o \
-	  $(CDIR)/comm6.o $(CDIR)/comm7.o $(CDIR)/comm8.o
+COBJ	= comm3.o comm4.o comm5.o \
+	  comm6.o comm7.o comm8.o
 MACH	= mach0.c mach1.c mach2.c mach3.c mach4.c mach5.c
 COMM	= $(CDIR)/comm0.h $(CDIR)/comm1.h $(CDIR)/comm2.y $(CSRC)
 
@@ -37,7 +37,7 @@ as:	$(COBJ) as.o
 	$(CC) $(LDFLAGS) $(COBJ) as.o -o as
 
 as.y:	$(CDIR)/comm2.y
-	$(CPP) -P -I$h $(DEF) $(CDIR)/comm2.y >as.y
+	$(CPP) -P -I. -I$h $(DEF) $(CDIR)/comm2.y >as.y
 	@echo "expect 1 shift/reduce conflict"
 
 lint:   $(CSRC) as.c
@@ -51,3 +51,15 @@ as.y:		mach2.c
 comm3.o:	mach3.c
 as.y:		mach4.c
 comm8.o:	mach5.c
+comm3.o:	$(CDIR)/comm3.c
+		$(CC) -c $(CFLAGS) $(CDIR)/comm3.c
+comm4.o:	$(CDIR)/comm4.c
+		$(CC) -c $(CFLAGS) $(CDIR)/comm4.c
+comm5.o:	$(CDIR)/comm5.c
+		$(CC) -c $(CFLAGS) $(CDIR)/comm5.c
+comm6.o:	$(CDIR)/comm6.c
+		$(CC) -c $(CFLAGS) $(CDIR)/comm6.c
+comm7.o:	$(CDIR)/comm7.c
+		$(CC) -c $(CFLAGS) $(CDIR)/comm7.c
+comm8.o:	$(CDIR)/comm8.c
+		$(CC) -c $(CFLAGS) $(CDIR)/comm8.c
diff --git a/mach/6809/as/Makefile b/mach/6809/as/Makefile
index 012b03822..695d2b20e 100644
--- a/mach/6809/as/Makefile
+++ b/mach/6809/as/Makefile
@@ -6,14 +6,14 @@ CPP	= $(EM)/lib/cpp
 DEF	=
 
 FFLAG	=
-CFLAGS	= $(FFLAG) -O -I$h $(DEF)
+CFLAGS	= $(FFLAG) -O -I. -I$h $(DEF)
 YFLAGS	= -d
 LDFLAGS	= $(FFLAG) -i
 
 CSRC	= $(CDIR)/comm3.c $(CDIR)/comm4.c $(CDIR)/comm5.c \
 	  $(CDIR)/comm6.c $(CDIR)/comm7.c $(CDIR)/comm8.c
-COBJ	= $(CDIR)/comm3.o $(CDIR)/comm4.o $(CDIR)/comm5.o \
-	  $(CDIR)/comm6.o $(CDIR)/comm7.o $(CDIR)/comm8.o
+COBJ	= comm3.o comm4.o comm5.o \
+	  comm6.o comm7.o comm8.o
 MACH	= mach0.c mach1.c mach2.c mach3.c mach4.c mach5.c
 COMM	= $(CDIR)/comm0.h $(CDIR)/comm1.h $(CDIR)/comm2.y $(CSRC)
 
@@ -37,7 +37,7 @@ as:	$(COBJ) as.o
 	$(CC) $(LDFLAGS) $(COBJ) as.o -o as
 
 as.y:	$(CDIR)/comm2.y
-	$(CPP) -P -I$h $(DEF) $(CDIR)/comm2.y >as.y
+	$(CPP) -P -I. -I$h $(DEF) $(CDIR)/comm2.y >as.y
 	@echo "expect 1 shift/reduce conflict"
 
 lint:   $(CSRC) as.c
@@ -51,3 +51,15 @@ as.y:		mach2.c
 comm3.o:	mach3.c
 as.y:		mach4.c
 comm8.o:	mach5.c
+comm3.o:	$(CDIR)/comm3.c
+		$(CC) -c $(CFLAGS) $(CDIR)/comm3.c
+comm4.o:	$(CDIR)/comm4.c
+		$(CC) -c $(CFLAGS) $(CDIR)/comm4.c
+comm5.o:	$(CDIR)/comm5.c
+		$(CC) -c $(CFLAGS) $(CDIR)/comm5.c
+comm6.o:	$(CDIR)/comm6.c
+		$(CC) -c $(CFLAGS) $(CDIR)/comm6.c
+comm7.o:	$(CDIR)/comm7.c
+		$(CC) -c $(CFLAGS) $(CDIR)/comm7.c
+comm8.o:	$(CDIR)/comm8.c
+		$(CC) -c $(CFLAGS) $(CDIR)/comm8.c
diff --git a/mach/arm/as/Makefile b/mach/arm/as/Makefile
index 012b03822..695d2b20e 100644
--- a/mach/arm/as/Makefile
+++ b/mach/arm/as/Makefile
@@ -6,14 +6,14 @@ CPP	= $(EM)/lib/cpp
 DEF	=
 
 FFLAG	=
-CFLAGS	= $(FFLAG) -O -I$h $(DEF)
+CFLAGS	= $(FFLAG) -O -I. -I$h $(DEF)
 YFLAGS	= -d
 LDFLAGS	= $(FFLAG) -i
 
 CSRC	= $(CDIR)/comm3.c $(CDIR)/comm4.c $(CDIR)/comm5.c \
 	  $(CDIR)/comm6.c $(CDIR)/comm7.c $(CDIR)/comm8.c
-COBJ	= $(CDIR)/comm3.o $(CDIR)/comm4.o $(CDIR)/comm5.o \
-	  $(CDIR)/comm6.o $(CDIR)/comm7.o $(CDIR)/comm8.o
+COBJ	= comm3.o comm4.o comm5.o \
+	  comm6.o comm7.o comm8.o
 MACH	= mach0.c mach1.c mach2.c mach3.c mach4.c mach5.c
 COMM	= $(CDIR)/comm0.h $(CDIR)/comm1.h $(CDIR)/comm2.y $(CSRC)
 
@@ -37,7 +37,7 @@ as:	$(COBJ) as.o
 	$(CC) $(LDFLAGS) $(COBJ) as.o -o as
 
 as.y:	$(CDIR)/comm2.y
-	$(CPP) -P -I$h $(DEF) $(CDIR)/comm2.y >as.y
+	$(CPP) -P -I. -I$h $(DEF) $(CDIR)/comm2.y >as.y
 	@echo "expect 1 shift/reduce conflict"
 
 lint:   $(CSRC) as.c
@@ -51,3 +51,15 @@ as.y:		mach2.c
 comm3.o:	mach3.c
 as.y:		mach4.c
 comm8.o:	mach5.c
+comm3.o:	$(CDIR)/comm3.c
+		$(CC) -c $(CFLAGS) $(CDIR)/comm3.c
+comm4.o:	$(CDIR)/comm4.c
+		$(CC) -c $(CFLAGS) $(CDIR)/comm4.c
+comm5.o:	$(CDIR)/comm5.c
+		$(CC) -c $(CFLAGS) $(CDIR)/comm5.c
+comm6.o:	$(CDIR)/comm6.c
+		$(CC) -c $(CFLAGS) $(CDIR)/comm6.c
+comm7.o:	$(CDIR)/comm7.c
+		$(CC) -c $(CFLAGS) $(CDIR)/comm7.c
+comm8.o:	$(CDIR)/comm8.c
+		$(CC) -c $(CFLAGS) $(CDIR)/comm8.c
diff --git a/mach/i386/as/Makefile b/mach/i386/as/Makefile
index 012b03822..695d2b20e 100644
--- a/mach/i386/as/Makefile
+++ b/mach/i386/as/Makefile
@@ -6,14 +6,14 @@ CPP	= $(EM)/lib/cpp
 DEF	=
 
 FFLAG	=
-CFLAGS	= $(FFLAG) -O -I$h $(DEF)
+CFLAGS	= $(FFLAG) -O -I. -I$h $(DEF)
 YFLAGS	= -d
 LDFLAGS	= $(FFLAG) -i
 
 CSRC	= $(CDIR)/comm3.c $(CDIR)/comm4.c $(CDIR)/comm5.c \
 	  $(CDIR)/comm6.c $(CDIR)/comm7.c $(CDIR)/comm8.c
-COBJ	= $(CDIR)/comm3.o $(CDIR)/comm4.o $(CDIR)/comm5.o \
-	  $(CDIR)/comm6.o $(CDIR)/comm7.o $(CDIR)/comm8.o
+COBJ	= comm3.o comm4.o comm5.o \
+	  comm6.o comm7.o comm8.o
 MACH	= mach0.c mach1.c mach2.c mach3.c mach4.c mach5.c
 COMM	= $(CDIR)/comm0.h $(CDIR)/comm1.h $(CDIR)/comm2.y $(CSRC)
 
@@ -37,7 +37,7 @@ as:	$(COBJ) as.o
 	$(CC) $(LDFLAGS) $(COBJ) as.o -o as
 
 as.y:	$(CDIR)/comm2.y
-	$(CPP) -P -I$h $(DEF) $(CDIR)/comm2.y >as.y
+	$(CPP) -P -I. -I$h $(DEF) $(CDIR)/comm2.y >as.y
 	@echo "expect 1 shift/reduce conflict"
 
 lint:   $(CSRC) as.c
@@ -51,3 +51,15 @@ as.y:		mach2.c
 comm3.o:	mach3.c
 as.y:		mach4.c
 comm8.o:	mach5.c
+comm3.o:	$(CDIR)/comm3.c
+		$(CC) -c $(CFLAGS) $(CDIR)/comm3.c
+comm4.o:	$(CDIR)/comm4.c
+		$(CC) -c $(CFLAGS) $(CDIR)/comm4.c
+comm5.o:	$(CDIR)/comm5.c
+		$(CC) -c $(CFLAGS) $(CDIR)/comm5.c
+comm6.o:	$(CDIR)/comm6.c
+		$(CC) -c $(CFLAGS) $(CDIR)/comm6.c
+comm7.o:	$(CDIR)/comm7.c
+		$(CC) -c $(CFLAGS) $(CDIR)/comm7.c
+comm8.o:	$(CDIR)/comm8.c
+		$(CC) -c $(CFLAGS) $(CDIR)/comm8.c
diff --git a/mach/i80/as/Makefile b/mach/i80/as/Makefile
index 012b03822..695d2b20e 100644
--- a/mach/i80/as/Makefile
+++ b/mach/i80/as/Makefile
@@ -6,14 +6,14 @@ CPP	= $(EM)/lib/cpp
 DEF	=
 
 FFLAG	=
-CFLAGS	= $(FFLAG) -O -I$h $(DEF)
+CFLAGS	= $(FFLAG) -O -I. -I$h $(DEF)
 YFLAGS	= -d
 LDFLAGS	= $(FFLAG) -i
 
 CSRC	= $(CDIR)/comm3.c $(CDIR)/comm4.c $(CDIR)/comm5.c \
 	  $(CDIR)/comm6.c $(CDIR)/comm7.c $(CDIR)/comm8.c
-COBJ	= $(CDIR)/comm3.o $(CDIR)/comm4.o $(CDIR)/comm5.o \
-	  $(CDIR)/comm6.o $(CDIR)/comm7.o $(CDIR)/comm8.o
+COBJ	= comm3.o comm4.o comm5.o \
+	  comm6.o comm7.o comm8.o
 MACH	= mach0.c mach1.c mach2.c mach3.c mach4.c mach5.c
 COMM	= $(CDIR)/comm0.h $(CDIR)/comm1.h $(CDIR)/comm2.y $(CSRC)
 
@@ -37,7 +37,7 @@ as:	$(COBJ) as.o
 	$(CC) $(LDFLAGS) $(COBJ) as.o -o as
 
 as.y:	$(CDIR)/comm2.y
-	$(CPP) -P -I$h $(DEF) $(CDIR)/comm2.y >as.y
+	$(CPP) -P -I. -I$h $(DEF) $(CDIR)/comm2.y >as.y
 	@echo "expect 1 shift/reduce conflict"
 
 lint:   $(CSRC) as.c
@@ -51,3 +51,15 @@ as.y:		mach2.c
 comm3.o:	mach3.c
 as.y:		mach4.c
 comm8.o:	mach5.c
+comm3.o:	$(CDIR)/comm3.c
+		$(CC) -c $(CFLAGS) $(CDIR)/comm3.c
+comm4.o:	$(CDIR)/comm4.c
+		$(CC) -c $(CFLAGS) $(CDIR)/comm4.c
+comm5.o:	$(CDIR)/comm5.c
+		$(CC) -c $(CFLAGS) $(CDIR)/comm5.c
+comm6.o:	$(CDIR)/comm6.c
+		$(CC) -c $(CFLAGS) $(CDIR)/comm6.c
+comm7.o:	$(CDIR)/comm7.c
+		$(CC) -c $(CFLAGS) $(CDIR)/comm7.c
+comm8.o:	$(CDIR)/comm8.c
+		$(CC) -c $(CFLAGS) $(CDIR)/comm8.c
diff --git a/mach/i86/as/Makefile b/mach/i86/as/Makefile
index 012b03822..695d2b20e 100644
--- a/mach/i86/as/Makefile
+++ b/mach/i86/as/Makefile
@@ -6,14 +6,14 @@ CPP	= $(EM)/lib/cpp
 DEF	=
 
 FFLAG	=
-CFLAGS	= $(FFLAG) -O -I$h $(DEF)
+CFLAGS	= $(FFLAG) -O -I. -I$h $(DEF)
 YFLAGS	= -d
 LDFLAGS	= $(FFLAG) -i
 
 CSRC	= $(CDIR)/comm3.c $(CDIR)/comm4.c $(CDIR)/comm5.c \
 	  $(CDIR)/comm6.c $(CDIR)/comm7.c $(CDIR)/comm8.c
-COBJ	= $(CDIR)/comm3.o $(CDIR)/comm4.o $(CDIR)/comm5.o \
-	  $(CDIR)/comm6.o $(CDIR)/comm7.o $(CDIR)/comm8.o
+COBJ	= comm3.o comm4.o comm5.o \
+	  comm6.o comm7.o comm8.o
 MACH	= mach0.c mach1.c mach2.c mach3.c mach4.c mach5.c
 COMM	= $(CDIR)/comm0.h $(CDIR)/comm1.h $(CDIR)/comm2.y $(CSRC)
 
@@ -37,7 +37,7 @@ as:	$(COBJ) as.o
 	$(CC) $(LDFLAGS) $(COBJ) as.o -o as
 
 as.y:	$(CDIR)/comm2.y
-	$(CPP) -P -I$h $(DEF) $(CDIR)/comm2.y >as.y
+	$(CPP) -P -I. -I$h $(DEF) $(CDIR)/comm2.y >as.y
 	@echo "expect 1 shift/reduce conflict"
 
 lint:   $(CSRC) as.c
@@ -51,3 +51,15 @@ as.y:		mach2.c
 comm3.o:	mach3.c
 as.y:		mach4.c
 comm8.o:	mach5.c
+comm3.o:	$(CDIR)/comm3.c
+		$(CC) -c $(CFLAGS) $(CDIR)/comm3.c
+comm4.o:	$(CDIR)/comm4.c
+		$(CC) -c $(CFLAGS) $(CDIR)/comm4.c
+comm5.o:	$(CDIR)/comm5.c
+		$(CC) -c $(CFLAGS) $(CDIR)/comm5.c
+comm6.o:	$(CDIR)/comm6.c
+		$(CC) -c $(CFLAGS) $(CDIR)/comm6.c
+comm7.o:	$(CDIR)/comm7.c
+		$(CC) -c $(CFLAGS) $(CDIR)/comm7.c
+comm8.o:	$(CDIR)/comm8.c
+		$(CC) -c $(CFLAGS) $(CDIR)/comm8.c
diff --git a/mach/m68020/as/Makefile b/mach/m68020/as/Makefile
index 012b03822..695d2b20e 100644
--- a/mach/m68020/as/Makefile
+++ b/mach/m68020/as/Makefile
@@ -6,14 +6,14 @@ CPP	= $(EM)/lib/cpp
 DEF	=
 
 FFLAG	=
-CFLAGS	= $(FFLAG) -O -I$h $(DEF)
+CFLAGS	= $(FFLAG) -O -I. -I$h $(DEF)
 YFLAGS	= -d
 LDFLAGS	= $(FFLAG) -i
 
 CSRC	= $(CDIR)/comm3.c $(CDIR)/comm4.c $(CDIR)/comm5.c \
 	  $(CDIR)/comm6.c $(CDIR)/comm7.c $(CDIR)/comm8.c
-COBJ	= $(CDIR)/comm3.o $(CDIR)/comm4.o $(CDIR)/comm5.o \
-	  $(CDIR)/comm6.o $(CDIR)/comm7.o $(CDIR)/comm8.o
+COBJ	= comm3.o comm4.o comm5.o \
+	  comm6.o comm7.o comm8.o
 MACH	= mach0.c mach1.c mach2.c mach3.c mach4.c mach5.c
 COMM	= $(CDIR)/comm0.h $(CDIR)/comm1.h $(CDIR)/comm2.y $(CSRC)
 
@@ -37,7 +37,7 @@ as:	$(COBJ) as.o
 	$(CC) $(LDFLAGS) $(COBJ) as.o -o as
 
 as.y:	$(CDIR)/comm2.y
-	$(CPP) -P -I$h $(DEF) $(CDIR)/comm2.y >as.y
+	$(CPP) -P -I. -I$h $(DEF) $(CDIR)/comm2.y >as.y
 	@echo "expect 1 shift/reduce conflict"
 
 lint:   $(CSRC) as.c
@@ -51,3 +51,15 @@ as.y:		mach2.c
 comm3.o:	mach3.c
 as.y:		mach4.c
 comm8.o:	mach5.c
+comm3.o:	$(CDIR)/comm3.c
+		$(CC) -c $(CFLAGS) $(CDIR)/comm3.c
+comm4.o:	$(CDIR)/comm4.c
+		$(CC) -c $(CFLAGS) $(CDIR)/comm4.c
+comm5.o:	$(CDIR)/comm5.c
+		$(CC) -c $(CFLAGS) $(CDIR)/comm5.c
+comm6.o:	$(CDIR)/comm6.c
+		$(CC) -c $(CFLAGS) $(CDIR)/comm6.c
+comm7.o:	$(CDIR)/comm7.c
+		$(CC) -c $(CFLAGS) $(CDIR)/comm7.c
+comm8.o:	$(CDIR)/comm8.c
+		$(CC) -c $(CFLAGS) $(CDIR)/comm8.c
diff --git a/mach/m68k2/as/Makefile b/mach/m68k2/as/Makefile
index 012b03822..695d2b20e 100644
--- a/mach/m68k2/as/Makefile
+++ b/mach/m68k2/as/Makefile
@@ -6,14 +6,14 @@ CPP	= $(EM)/lib/cpp
 DEF	=
 
 FFLAG	=
-CFLAGS	= $(FFLAG) -O -I$h $(DEF)
+CFLAGS	= $(FFLAG) -O -I. -I$h $(DEF)
 YFLAGS	= -d
 LDFLAGS	= $(FFLAG) -i
 
 CSRC	= $(CDIR)/comm3.c $(CDIR)/comm4.c $(CDIR)/comm5.c \
 	  $(CDIR)/comm6.c $(CDIR)/comm7.c $(CDIR)/comm8.c
-COBJ	= $(CDIR)/comm3.o $(CDIR)/comm4.o $(CDIR)/comm5.o \
-	  $(CDIR)/comm6.o $(CDIR)/comm7.o $(CDIR)/comm8.o
+COBJ	= comm3.o comm4.o comm5.o \
+	  comm6.o comm7.o comm8.o
 MACH	= mach0.c mach1.c mach2.c mach3.c mach4.c mach5.c
 COMM	= $(CDIR)/comm0.h $(CDIR)/comm1.h $(CDIR)/comm2.y $(CSRC)
 
@@ -37,7 +37,7 @@ as:	$(COBJ) as.o
 	$(CC) $(LDFLAGS) $(COBJ) as.o -o as
 
 as.y:	$(CDIR)/comm2.y
-	$(CPP) -P -I$h $(DEF) $(CDIR)/comm2.y >as.y
+	$(CPP) -P -I. -I$h $(DEF) $(CDIR)/comm2.y >as.y
 	@echo "expect 1 shift/reduce conflict"
 
 lint:   $(CSRC) as.c
@@ -51,3 +51,15 @@ as.y:		mach2.c
 comm3.o:	mach3.c
 as.y:		mach4.c
 comm8.o:	mach5.c
+comm3.o:	$(CDIR)/comm3.c
+		$(CC) -c $(CFLAGS) $(CDIR)/comm3.c
+comm4.o:	$(CDIR)/comm4.c
+		$(CC) -c $(CFLAGS) $(CDIR)/comm4.c
+comm5.o:	$(CDIR)/comm5.c
+		$(CC) -c $(CFLAGS) $(CDIR)/comm5.c
+comm6.o:	$(CDIR)/comm6.c
+		$(CC) -c $(CFLAGS) $(CDIR)/comm6.c
+comm7.o:	$(CDIR)/comm7.c
+		$(CC) -c $(CFLAGS) $(CDIR)/comm7.c
+comm8.o:	$(CDIR)/comm8.c
+		$(CC) -c $(CFLAGS) $(CDIR)/comm8.c
diff --git a/mach/m68k2/as/mach0.c b/mach/m68k2/as/mach0.c
new file mode 100644
index 000000000..76d1a7a06
--- /dev/null
+++ b/mach/m68k2/as/mach0.c
@@ -0,0 +1,28 @@
+#define DUK
+/* @(#)mach0.c	1.5 */
+/*
+ * Motorola 68000/68010 options
+ */
+#undef	BITMAX
+#define	BITMAX	8000
+
+#define	THREE_PASS		/* branch and offset optimization */
+#define	BYTES_REVERSED		/* high order byte has lowest address */
+#define	WORDS_REVERSED		/* high order word has lowest address */
+#define	LISTING			/* enable listing facilities */
+#define RELOCATION		/* generate relocatable code */
+
+#undef	valu_t
+#define	valu_t		long
+#undef	addr_t
+#define	addr_t		long
+
+#undef	ALIGNWORD
+#define	ALIGNWORD	2
+#undef	ALIGNSECT
+#define	ALIGNSECT	2
+
+#undef	VALWIDTH
+#define	VALWIDTH	8
+
+#define NOLD	/* Added by Duk Bekema. */
diff --git a/mach/m68k2/as/mach1.c b/mach/m68k2/as/mach1.c
new file mode 100644
index 000000000..175eca0c4
--- /dev/null
+++ b/mach/m68k2/as/mach1.c
@@ -0,0 +1,58 @@
+/* @(#)mach1.c	1.8 */
+/*
+ * Motorola 68000/68010 dependent C declarations
+ */
+
+#define	low3(z)		((short)(z) & 07)
+#define	low4(z)		((short)(z) & 017)
+
+#define	fit3(z)		((((z)-1) & ~07) == 0)
+#define	fit4(z)		(((z) & ~017) == 0)
+#define	fit8(z)		(((z) & ~0xFF) == 0)
+#define	fit16(z)	(((z) & ~0xFFFF) == 0)
+
+#define	SIZE_B		0000
+#define	SIZE_W		0100
+#define	SIZE_L		0200
+#define	SIZE_NON	0300
+#define	SIZE_DEF	SIZE_W
+
+extern int	mrg_1,mrg_2;
+extern expr_t	exp_1,exp_2;
+#ifndef ASLD
+extern valu_t	rel_1,rel_2;
+#endif
+extern int 	model;		/* 68000/68010 */
+
+/* addressing mode bits */
+#define	DTA		0x01
+#define	MEM		0x02
+#define	CTR		0x04
+#define	ALT		0x08
+#define	FITB		0x10
+#define	FITW		0x20
+#define	PUTW		0x40
+#define	PUTL		0x80
+
+#ifndef extern
+extern short	eamode[];
+#else
+short	eamode[] = {
+/* 00A */	DTA        |ALT,
+/* 01A */	            ALT,
+/* 02A */	DTA|MEM|CTR|ALT,
+/* 03A */	DTA|MEM    |ALT,
+/* 04A */	DTA|MEM    |ALT,
+/* 05A */	DTA|MEM|CTR|ALT|FITW|PUTW | (RELO2      )<<8,
+/* 06A */	DTA|MEM|CTR|ALT     |PUTW | (RELO1      )<<8,
+/* 07x */	0,
+/* 070 */	DTA|MEM|CTR|ALT|FITW|PUTW | (RELO2      )<<8,
+/* 071 */	DTA|MEM|CTR|ALT     |PUTL | (RELO4      )<<8,
+/* 072 */	DTA|MEM|CTR    |FITW|PUTW | (RELO2|RELPC)<<8,
+/* 073 */	DTA|MEM|CTR         |PUTW | (RELO1|RELPC)<<8,
+/* 074x */	0,
+/* 074B */	DTA|MEM        |FITB|PUTW | (RELO1      )<<8,
+/* 074W */	DTA|MEM        |FITW|PUTW | (RELO2      )<<8,
+/* 074L */	DTA|MEM             |PUTL | (RELO4      )<<8,
+};
+#endif
diff --git a/mach/m68k2/as/mach2.c b/mach/m68k2/as/mach2.c
new file mode 100644
index 000000000..1274e860e
--- /dev/null
+++ b/mach/m68k2/as/mach2.c
@@ -0,0 +1,42 @@
+/* @(#)mach2.c	1.5 */
+/*
+ * Motorola 68000/68010 tokens
+ */
+
+%token <y_word> SIZE
+%token <y_word> DREG
+%token <y_word> AREG
+%token <y_word> PC
+%token <y_word> CREG
+%token <y_word> SPEC
+%token <y_word> ABCD
+%token <y_word> ADDX
+%token <y_word> ADD
+%token <y_word> AND
+%token <y_word> BITOP
+%token <y_word> SHIFT
+%token <y_word> SZ_EA
+%token <y_word> OP_EA
+%token <y_word> OP_NOOP
+%token <y_word> OP_EA_D
+%token <y_word> LEA
+%token <y_word> DBR
+%token <y_word> BR
+%token <y_word> CMP
+%token <y_word> MOVE
+%token <y_word> MOVEP
+%token <y_word> MOVEM
+%token <y_word> MOVEC
+%token <y_word> MOVES
+%token <y_word> SWAP
+%token <y_word> LINK
+%token <y_word> UNLK
+%token <y_word> TRAP
+%token <y_word> STOP
+%token <y_word> EXG
+%token <y_word> OP_EXT
+%token <y_word> RTD
+%token <y_word> MODEL
+
+%type <y_word> bcdx op_ea regs rrange 
+%type <y_word> reg sizedef sizenon creg
diff --git a/mach/m68k2/as/mach3.c b/mach/m68k2/as/mach3.c
new file mode 100644
index 000000000..363aae76a
--- /dev/null
+++ b/mach/m68k2/as/mach3.c
@@ -0,0 +1,171 @@
+/* @(#)mach3.c	1.4 */
+/*
+ * Motorola 68000/68010 keywords
+ */
+
+0,	SIZE,		SIZE_B,		".b",
+0,	SIZE,		SIZE_W,		".w",
+0,	SIZE,		SIZE_L,		".l",
+
+0,	DREG,		00,		"d0",
+0,	DREG,		01,		"d1",
+0,	DREG,		02,		"d2",
+0,	DREG,		03,		"d3",
+0,	DREG,		04,		"d4",
+0,	DREG,		05,		"d5",
+0,	DREG,		06,		"d6",
+0,	DREG,		07,		"d7",
+
+0,	AREG,		00,		"a0",
+0,	AREG,		01,		"a1",
+0,	AREG,		02,		"a2",
+0,	AREG,		03,		"a3",
+0,	AREG,		04,		"a4",
+0,	AREG,		05,		"a5",
+0,	AREG,		06,		"a6",
+0,	AREG,		07,		"a7",
+0,	AREG,		07,		"sp",
+
+0,	PC,		8,		"pc",
+
+0,	MODEL,		0,		".68000",
+0,	MODEL,		1,		".68010",
+
+0,	CREG,		04001,		"vbr",
+0,	CREG,		0,		"sfc",
+0,	CREG,		00001,		"dfc",
+
+0,	SPEC,		075,		"usp",
+0,	SPEC,		076,		"ccr",
+0,	SPEC,		077,		"sr",
+
+0,	ABCD,		0140400,	"abcd",
+0,	ABCD,		0100400,	"sbcd",
+
+0,	ADDX,		0150400,	"addx",
+0,	ADDX,		0110400,	"subx",
+
+0,	ADD,		0153300,	"add",
+0,	ADD,		0112700,	"sub",
+
+0,	AND,		0141000,	"and",
+0,	AND,		0135000,	"eor",
+0,	AND,		0100000,	"or",
+
+0,	BITOP,		0000,		"btst",
+0,	BITOP,		0100,		"bchg",
+0,	BITOP,		0200,		"bclr",
+0,	BITOP,		0300,		"bset",
+
+0,	SHIFT,		0160340,	"asr",
+0,	SHIFT,		0160740,	"asl",
+0,	SHIFT,		0161350,	"lsr",
+0,	SHIFT,		0161750,	"lsl",
+0,	SHIFT,		0162360,	"roxr",
+0,	SHIFT,		0162760,	"roxl",
+0,	SHIFT,		0163370,	"ror",
+0,	SHIFT,		0163770,	"rol",
+
+0,	SZ_EA,		041000|DTA|ALT,	"clr",
+0,	SZ_EA,		042000|DTA|ALT,	"neg",
+0,	SZ_EA,		040000|DTA|ALT,	"negx",
+0,	SZ_EA,		043000|DTA|ALT,	"not",
+0,	SZ_EA,		045000|DTA|ALT,	"tst",
+
+0,	OP_EA,		044000|DTA|ALT,	"nbcd",
+0,	OP_EA,		045300|DTA|ALT,	"tas",
+0,	OP_EA,		047200|CTR,	"jsr",
+0,	OP_EA,		047300|CTR,	"jmp",
+0,	OP_EA,		044100|CTR,	"pea",
+
+0,	OP_EA,		050300,		"st",
+0,	OP_EA,		050700,		"sf",
+0,	OP_EA,		051300,		"shi",
+0,	OP_EA,		051700,		"sls",
+0,	OP_EA,		052300,		"scc",
+0,	OP_EA,		052700,		"scs",
+0,	OP_EA,		053300,		"sne",
+0,	OP_EA,		053700,		"seq",
+0,	OP_EA,		054300,		"svc",
+0,	OP_EA,		054700,		"svs",
+0,	OP_EA,		055300,		"spl",
+0,	OP_EA,		055700,		"smi",
+0,	OP_EA,		056300,		"sge",
+0,	OP_EA,		056700,		"slt",
+0,	OP_EA,		057300,		"sgt",
+0,	OP_EA,		057700,		"sle",
+
+0,	OP_NOOP,	047160,		"reset",
+0,	OP_NOOP,	047161,		"nop",
+0,	OP_NOOP,	047163,		"rte",
+0,	OP_NOOP,	047165,		"rts",
+0,	OP_NOOP,	047166,		"trapv",
+0,	OP_NOOP,	047167,		"rtr",
+0,	OP_NOOP,	045374,		"illegal",
+
+0,	OP_EA_D,	040600,		"chk",
+0,	OP_EA_D,	0100300,	"divu",
+0,	OP_EA_D,	0100700,	"divs",
+0,	OP_EA_D,	0140300,	"mulu",
+0,	OP_EA_D,	0140700,	"muls",
+
+0,	BR,		060000,		"bra",
+0,	BR,		060400,		"bsr",
+0,	BR,		061000,		"bhi",
+0,	BR,		061400,		"bls",
+0,	BR,		062000,		"bcc",
+0,	BR,		062400,		"bcs",
+0,	BR,		063000,		"bne",
+0,	BR,		063400,		"beq",
+0,	BR,		064000,		"bvc",
+0,	BR,		064400,		"bvs",
+0,	BR,		065000,		"bpl",
+0,	BR,		065400,		"bmi",
+0,	BR,		066000,		"bge",
+0,	BR,		066400,		"blt",
+0,	BR,		067000,		"bgt",
+0,	BR,		067400,		"ble",
+
+0,	DBR,		050310,		"dbt",
+0,	DBR,		050710,		"dbf",
+0,	DBR,		050710,		"dbra",
+0,	DBR,		051310,		"dbhi",
+0,	DBR,		051710,		"dbls",
+0,	DBR,		052310,		"dbcc",
+0,	DBR,		052710,		"dbcs",
+0,	DBR,		053310,		"dbne",
+0,	DBR,		053710,		"dbeq",
+0,	DBR,		054310,		"dbvc",
+0,	DBR,		054710,		"dbvs",
+0,	DBR,		055310,		"dbpl",
+0,	DBR,		055710,		"dbmi",
+0,	DBR,		056310,		"dbge",
+0,	DBR,		056710,		"dblt",
+0,	DBR,		057310,		"dbgt",
+0,	DBR,		057710,		"dble",
+
+0,	CMP,		0,		"cmp",
+
+0,	MOVE,		0,		"move",
+0,	MOVEP,		0,		"movep",
+0,	MOVEM,		0,		"movem",
+0,	MOVES,		0,		"moves",
+0,	MOVEC,		0,		"movec",
+
+0,	SWAP,		0,		"swap",
+
+0,	LINK,		0,		"link",
+
+0,	UNLK,		0,		"unlk",
+
+0,	TRAP,		0,		"trap",
+
+0,	STOP,		047162,		"stop",
+
+0,	EXG,		0,		"exg",
+
+0,	OP_EXT,		0,		"ext",
+
+0,	LEA,		0,		"lea",
+
+0,	RTD,		0,		"rtd",
diff --git a/mach/m68k2/as/mach4.c b/mach/m68k2/as/mach4.c
new file mode 100644
index 000000000..070a09be2
--- /dev/null
+++ b/mach/m68k2/as/mach4.c
@@ -0,0 +1,196 @@
+/* @(#)mach4.c	1.11 */
+/*
+ *  Motorola 68000/68010 syntax rules
+ */
+
+operation
+	:	bcdx DREG ',' DREG
+			{	emit2($1 | $2 | $4<<9);}
+	|	bcdx '-' '(' AREG ')' ',' '-' '(' AREG ')'
+			{	emit2($1 | $4 | $9<<9 | 010);}
+	|	ADD sizedef ea_ea
+			{	add($1, $2);}
+	|	AND sizenon ea_ea
+			{	and($1, $2);}
+	|	SHIFT sizedef ea_ea
+			{	shift_op($1, $2);}
+	|	BR expr
+			{	branch($1, $2);}
+	|	DBR DREG ',' expr
+			{	$4.val -= (DOTVAL+2);
+				fit(fitw($4.val));
+				emit2($1 | $2);
+#ifdef RELOCATION
+#ifdef DUK
+				newrelo($4.typ, RELPC|RELO2|RELBR|RELWR);
+#else DUK
+				newrelo($4.typ, RELPC|RELO2);
+#endif DUK
+#endif
+				emit2(loww($4.val));
+			}
+	|	BITOP ea_ea
+			{	bitop($1);}
+	|	OP_EA_D ea ',' DREG
+			{	emit2($1 | mrg_2 | $4<<9);
+				ea_2(SIZE_W, DTA);
+			}
+	|	LEA ea ',' AREG
+			{	emit2(040700 | mrg_2 | $4<<9);
+				ea_2(SIZE_L, CTR);
+			}
+	|	op_ea ea
+			{	emit2(($1&0177700) | mrg_2);
+				ea_2($1&0300, $1&017);
+			}
+	|	OP_NOOP
+			{	emit2($1);}
+	|	CMP sizedef ea_ea
+			{	cmp($2);}
+	|	MOVE sizenon ea_ea
+			{	move($2);}
+	|	MOVEP sizedef ea_ea
+			{	movep($2);}
+	|	MOVEM sizedef regs ',' notimmreg
+			{	movem(0, $2, $3);}
+	|	MOVEM sizedef notimmreg ',' regs
+			{	movem(1, $2, $5);}
+	| 	MOVES sizedef ea_ea
+			{	test68010();
+				if (mrg_1 <= 017) {
+					emit2(007000 | $2 | mrg_2);
+					emit2(mrg_1 << 12 | 04000);
+					ea_2($2,ALT|MEM);
+				} else if (mrg_2 <= 017) {
+					emit2(007000 | $2 | mrg_1);
+					emit2(mrg_2 << 12);
+					ea_1($2,ALT|MEM);
+				} else
+					badoperand();
+			}
+	|	MOVEC creg ',' reg
+			{	test68010();
+				emit2(047172); emit2($2 | $4<<12);
+			}
+	|	MOVEC reg ',' creg
+			{	test68010();
+				emit2(047173); emit2($4 | $2<<12);
+			}
+	|	EXG reg ',' reg
+			{	if (($2 & 010) == 0)
+					emit2(
+						(0140500|$4|$2<<9)
+						+
+						(($4&010)<<3)
+					);
+				else
+					emit2(
+						(0140600|$2|($4&07)<<9)
+						-
+						(($4&010)<<3)
+					);
+			}
+	|	OP_EXT sizedef DREG
+			{	checksize($2, 2|4); emit2(044000 | $2+0100 | $3);}
+	|	SWAP DREG
+			{	emit2(044100 | $2);}
+	|	STOP imm
+			{	emit2($1); ea_2(SIZE_W, 0);}
+	|	LINK AREG ',' imm
+			{	emit2(047120 | $2); ea_2(SIZE_W, 0);}
+	|	UNLK AREG
+			{	emit2(047130 | $2);}
+	|	TRAP '#' absexp
+			{	fit(fit4($3)); emit2(047100|low4($3));}
+	|	RTD imm
+			{	test68010();
+				emit2(047164);
+				ea_2(SIZE_W, 0);
+			}
+	|	MODEL
+			{	model = $1;}
+	;
+bcdx	:	ABCD
+	|	ADDX sizedef
+			{	$$ = $1 | $2;}
+	;
+creg	:	CREG
+	|	SPEC	{	if ($1 != 075) badoperand(); $$ = 04000;}
+	;
+op_ea	:	OP_EA
+	|	SZ_EA sizedef
+			{	$$ = $1 | $2;}
+	;
+regs	:	rrange
+	|	regs '/' rrange
+			{	$$ = $1 | $3;}
+	;
+rrange	:	reg
+			{	$$ = 1<<$1;}
+	|	reg '-' reg
+			{	if ($1 > $3)
+					badoperand();
+				for ($$ = 0; $1 <= $3; $1++)
+					$$ |= (1<<$1);
+			}
+	;
+ea	:	DREG
+			{	mrg_2 = $1;}
+	|	AREG
+			{	mrg_2 = 010 | $1;}
+	|	SPEC
+			{	mrg_2 = $1;}
+	|	notimmreg
+	|	imm
+	;
+notimmreg
+	:	'(' AREG ')'
+			{	mrg_2 = 020 | $2;}
+	|	'(' AREG ')' '+'
+			{	mrg_2 = 030 | $2;}
+	|	'-' '(' AREG ')'
+			{	mrg_2 = 040 | $3;}
+	|	expr sizenon
+			{	exp_2 = $1; ea707172($2);
+				RELOMOVE(rel_2, relonami);
+			}
+	|	expr '(' reg sizenon ')'
+			{	exp_2 = $1; ea5x73($3, $4);
+				RELOMOVE(rel_2, relonami);
+			}
+	|	expr '(' AREG ',' reg sizedef ')'
+			{	exp_2 = $1; ea6x($3, $5, $6);
+				RELOMOVE(rel_2, relonami);
+			}
+	|	expr '(' PC ')'
+			{	exp_2 = $1; ea72();
+				RELOMOVE(rel_2, relonami);
+			}
+	|	expr '(' PC ',' reg sizedef ')'
+			{	exp_2 = $1; ea73($5, $6);
+				RELOMOVE(rel_2, relonami);
+			}
+	;
+imm	:	'#' expr
+			{	mrg_2 = 074; exp_2 = $2;
+				RELOMOVE(rel_2, relonami);
+			}
+	;
+reg	:	DREG
+	|	AREG
+			{	$$ = $1 | 010;}
+	;
+sizedef	:	/* empty */
+			{	$$ = SIZE_DEF;}
+	|	SIZE
+	;
+sizenon	:	/* empty */
+			{	$$ = SIZE_NON;}
+	|	SIZE
+	;
+ea_ea	:	ea ','
+			{	mrg_1 = mrg_2; exp_1 = exp_2;
+				RELOMOVE(rel_1, rel_2);
+			}
+		ea
+	;
diff --git a/mach/m68k2/as/mach5.c b/mach/m68k2/as/mach5.c
new file mode 100644
index 000000000..bec9624a3
--- /dev/null
+++ b/mach/m68k2/as/mach5.c
@@ -0,0 +1,460 @@
+/* @(#)mach5.c	1.16 */
+/*
+ * Motorola 68000/68010 auxiliary functions
+ */
+
+ea_1(sz, bits)
+{
+	register flag;
+
+	if (mrg_1 > 074)
+		serror("no specials");
+	if ((flag = eamode[mrg_1>>3]) == 0)
+		if ((flag = eamode[010 + (mrg_1&07)]) == 0)
+			flag = eamode[015 + (sz>>6)];
+	if ((mrg_1 & 070) == 010)
+		checksize(sz, 2|4);
+	bits &= ~flag;
+	if (bits)
+		serror("bad addressing categorie");
+	if (flag & FITW)
+		if (
+			! fitw(exp_1.val)
+			&&
+			(mrg_1 != 074 || ! fit16(exp_1.val))
+		)
+			nofit();
+	if (flag & FITB) {
+		if (
+			! fitb(exp_1.val)
+			&&
+			(mrg_1 != 074 || ! fit8(exp_1.val))
+		)
+			nofit();
+		if (mrg_1 == 074)
+			exp_1.val &= 0xFF;
+	}
+#ifdef RELOCATION
+	RELOMOVE(relonami, rel_1);
+	if (flag & ~0xFF)
+#ifdef DUK
+		newrelo(exp_1.typ, (flag>>8) | RELBR | RELWR);
+#else DUK
+		newrelo(exp_1.typ, flag>>8);
+#endif DUK
+#endif
+	if (flag & PUTL)
+		emit4(exp_1.val);
+	if (flag & PUTW)
+		emit2(loww(exp_1.val));
+}
+
+ea_2(sz, bits)
+{ 
+	mrg_1 = mrg_2;
+	exp_1 = exp_2;
+	RELOMOVE(rel_1, rel_2);
+	ea_1(sz, bits);
+}
+
+index(hibyte)
+{
+	fit(fitb(exp_2.val));
+	exp_2.val = hibyte | lowb(exp_2.val);
+}
+
+checksize(sz, bits)
+{
+	if ((bits & (1 << (sz>>6))) == 0)
+		serror("bad size");
+}
+
+test68010()
+{
+	if (model != 1)
+		warning("68010 instruction");
+}
+
+badoperand()
+{
+	serror("bad operands");
+}
+
+shift_op(opc, sz)
+{
+	if (mrg_1 < 010 && mrg_2 < 010) {
+		emit2((opc&0170470) | sz | mrg_1<<9 | mrg_2);
+		return;
+	}
+	if (exp_1.typ != S_ABS || mrg_1 != 074) {
+		badoperand();
+		return;
+	}
+	if (mrg_2 < 010) {
+		fit(fit3(exp_1.val));
+		emit2((opc&0170430) | sz | low3(exp_1.val)<<9 | mrg_2);
+		return;
+	}
+	checksize(sz, 2);
+	fit(exp_1.val == 1);
+	emit2((opc&0177700) | mrg_2);
+	ea_2(SIZE_W, MEM|ALT);
+}
+
+bitop(opc)
+{
+	register bits;
+
+	bits = DTA|ALT;
+	if (opc == 0 && (mrg_1 < 010 || mrg_2 != 074))
+		bits = DTA;
+	if (mrg_1 < 010) {
+		emit2(opc | 0400 | mrg_1<<9 | mrg_2);
+		ea_2(0, bits);
+		return;
+	}
+	if (mrg_1 == 074) {
+		emit2(opc | 04000 | mrg_2);
+		ea_1(SIZE_W, 0);
+		ea_2(0, bits);
+		return;
+	}
+	badoperand();
+}
+
+add(opc, sz)
+{
+	if ((mrg_2 & 070) == 010)
+		checksize(sz, 2|4);
+	if (
+		mrg_1 == 074
+		&&
+		small(
+			exp_1.typ==S_ABS && fit3(exp_1.val),
+			sz==SIZE_L ? 4 : 2
+		)
+	) {
+		emit2((opc&0400) | 050000 | low3(exp_1.val)<<9 | sz | mrg_2);
+		ea_2(sz, ALT);
+		return;
+	}
+	if (mrg_1 == 074 && (mrg_2 & 070) != 010) {
+		emit2((opc&03000) | sz | mrg_2);
+		ea_1(sz, 0);
+		ea_2(sz, DTA|ALT);
+		return;
+	}
+	if ((mrg_2 & 070) == 010) {
+		emit2((opc&0170300) | (mrg_2&7)<<9 | sz<<1 | mrg_1);
+		ea_1(sz, 0);
+		return;
+	}
+	if (to_dreg(opc, sz, 0))
+		return;
+	if (from_dreg(opc, sz, ALT|MEM))
+		return;
+	badoperand();
+}
+
+and(opc, sz)
+{
+	if (mrg_1 == 074 && mrg_2 >= 076) {	/* ccr or sr */
+		if (sz != SIZE_NON)
+			checksize(sz, mrg_2==076 ? 1 : 2);
+		else
+			sz = (mrg_2==076 ? SIZE_B : SIZE_W);
+		emit2((opc&07400) | sz | 074);
+		ea_1(sz, 0);
+		return;
+	}
+	if (sz == SIZE_NON)
+		sz = SIZE_DEF;
+	if (mrg_1 == 074) {
+		emit2((opc&07400) | sz | mrg_2);
+		ea_1(sz, 0);
+		ea_2(sz, DTA|ALT);
+		return;
+	}
+	if ((opc & 010000) == 0 && to_dreg(opc, sz, DTA))
+		return;
+	if (from_dreg(opc, sz, (opc & 010000) ? DTA|ALT : ALT|MEM))
+		return;
+	badoperand();
+}
+
+to_dreg(opc, sz, bits)
+{
+	if ((mrg_2 & 070) != 000)
+		return(0);
+	emit2((opc & 0170000) | sz | (mrg_2&7)<<9 | mrg_1);
+	ea_1(sz, bits);
+	return(1);
+}
+
+from_dreg(opc, sz, bits)
+{
+	if ((mrg_1 & 070) != 000)
+		return(0);
+	emit2((opc & 0170000) | sz | (mrg_1&7)<<9 | 0400 | mrg_2);
+	ea_2(sz, bits);
+	return(1);
+}
+
+cmp(sz)
+{
+	register opc;
+
+	if ((mrg_1&070) == 030 && (mrg_2&070) == 030) {
+		emit2(0130410 | sz | (mrg_1&7) | (mrg_2&7)<<9);
+		return;
+	}
+	if (mrg_1 == 074 && (mrg_2 & 070) != 010) {
+		emit2(06000 | sz | mrg_2);
+		ea_1(sz, 0);
+		ea_2(sz, DTA|ALT);
+		return;
+	}
+	if (mrg_2 < 020) {
+		if (mrg_2 >= 010) {
+			checksize(sz, 2|4);
+			opc = 0130300 | sz<<1;
+			mrg_2 &= 7;
+		} else
+			opc = 0130000 | sz;
+		emit2(opc | mrg_2<<9 | mrg_1);
+		ea_1(sz, 0);
+		return;
+	}
+	badoperand();
+}
+
+move(sz)
+{
+	register opc;
+
+	if (mrg_1 > 074 || mrg_2 > 074) {
+		move_special(sz);
+		return;
+	}
+	if (sz == SIZE_NON)
+		sz = SIZE_DEF;
+	if (
+		mrg_2<010
+		&&
+		mrg_1==074
+		&&
+		sz==SIZE_L
+		&&
+		small(exp_1.typ==S_ABS && fitb(exp_1.val), 4)
+	) {
+		emit2(070000 | mrg_2<<9 | lowb(exp_1.val));
+		return;
+	}
+	switch (sz) {
+	case SIZE_B:	opc = 010000; break;
+	case SIZE_W:	opc = 030000; break;
+	case SIZE_L:	opc = 020000; break;
+	}
+	emit2(opc | mrg_1 | (mrg_2&7)<<9 | (mrg_2&070)<<3);
+	ea_1(sz, 0);
+	ea_2(sz, ALT);
+}
+
+move_special(sz)
+{
+	if (mrg_2 >= 076) {
+		if (sz != SIZE_NON)
+			checksize(sz, 2);
+		emit2(042300 | (mrg_2==076?0:01000) | mrg_1);
+		ea_1(SIZE_W, DTA);
+		return;
+	}
+	if (mrg_1 >= 076) {
+		if (mrg_1 == 076)
+			test68010();
+		if (sz != SIZE_NON)
+			checksize(sz, 2);
+		emit2(040300 | (mrg_1==076?01000:0) | mrg_2);
+		ea_2(SIZE_W, DTA|ALT);
+		return;
+	}
+	if (sz != SIZE_NON)
+		checksize(sz, 4);
+	if (mrg_1==075 && (mrg_2&070)==010) {
+		emit2(047150 | (mrg_2&7));
+		return;
+	}
+	if (mrg_2==075 && (mrg_1&070)==010) {
+		emit2(047140 | (mrg_1&7));
+		return;
+	}
+	badoperand();
+}
+
+movem(dr, sz, regs)
+{
+	register i;
+	register r;
+
+	if ((mrg_2>>3) == 04) {
+		r = regs; regs = 0;
+		for (i = 0; i < 16; i++) {
+			regs <<= 1;
+			if (r & 1)
+				regs++;
+			r >>= 1;
+		}
+	}
+	checksize(sz, 2|4);
+	if ((mrg_2>>3)-3 == dr)
+		badoperand();
+	emit2(044200 | dr<<10 | (sz & 0200) >> 1 | mrg_2);
+	emit2(regs);
+	i = CTR;
+	if (dr == 0 && (mrg_2&070) == 040)
+		i = MEM;
+	if (dr != 0 && (mrg_2&070) == 030)
+		i = MEM;
+	if (dr == 0)
+		i |= ALT;
+	ea_2(sz, i);
+}
+
+movep(sz)
+{
+	checksize(sz, 2|4);
+	if (mrg_1<010 && (mrg_2&070)==050) {
+		emit2(0610 | (sz & 0200)>>1 | mrg_1<<9 | (mrg_2&7));
+		ea_2(sz, 0);
+		return;
+	}
+	if (mrg_2<010 && (mrg_1&070)==050) {
+		emit2(0410 | (sz & 0200)>>1 | mrg_2<<9 | (mrg_1&7));
+		ea_1(sz, 0);
+		return;
+	}
+	badoperand();
+}
+
+branch(opc, exp)
+expr_t exp;
+{
+	register sm;
+
+	exp.val -= (DOTVAL + 2);
+	if ((pass == PASS_2) 
+	    &&
+	    (exp.val > 0)
+	    &&
+	    ((exp.typ & S_DOT) == 0)
+	   )
+		exp.val -= DOTGAIN;
+	sm = fitb(exp.val);
+	if ((exp.typ & ~S_DOT) != DOTTYP)
+		sm = 0;
+	if (small(sm,2)) {
+		if (exp.val == 0)
+			emit2(047161);	/* NOP */
+		else
+			emit2(opc | lowb(exp.val));
+	} else {
+		fit(fitw(exp.val));
+		emit2(opc);
+#ifdef RELOCATION
+#ifdef DUK
+		newrelo(exp.typ, RELPC|RELO2|RELBR|RELWR);
+#else DUK
+		newrelo(exp.typ, RELPC|RELO2);
+#endif DUK
+#endif
+		emit2(loww(exp.val));
+	}
+}
+
+ea5x73(rg, sz)
+{
+	if ((exp_2.typ & ~S_DOT) == DOTTYP) {
+		/* pc relative with index */
+		if (sz == SIZE_NON)
+			sz = SIZE_DEF;
+		exp_2.val -= (DOTVAL + 2);
+		mrg_2 = 073;
+		checksize(sz, 2|4);
+		index(rg<<12 | (sz&0200)<<4);
+		return;
+	}
+	/* displacement */
+	mrg_2 = 050 | rg;
+	if (pass == PASS_1)	/* tricky, maybe 073 in next passes */
+		return;
+	if ((rg & 010) == 0 || sz != SIZE_NON)
+		badoperand();
+}
+
+ea707172(sz)
+{
+	register sm;
+
+	mrg_2 = 071;
+	switch (sz) {
+	case SIZE_B:
+		badoperand();
+	case SIZE_W:
+		mrg_2 = 070;
+	case SIZE_L:
+		return;
+	case SIZE_NON:
+		break;
+	}
+	if (pass == PASS_1) {
+		/*
+		 * reserve a bit in the bittable
+		 * in the following passes one call to small()
+		 * will be done, but we don't know which one
+		 * since exp_2.typ cannot be trusted
+		 */
+		small(0, 2);
+		return;
+	}
+	if ((exp_2.typ & ~S_DOT) == DOTTYP) {
+		sm = fitw(exp_2.val-(DOTVAL+2));
+		sm = small(sm, 2);
+		if (sm) {	/* pc relative */
+			exp_2.val -= (DOTVAL+2);
+			mrg_2 = 072;
+		}
+	} else {
+		sm = fitw(exp_2.val);
+#ifdef ASLD
+		if (exp_2.typ & S_VAR)
+			sm = 0;
+#else
+		if (exp_2.typ != S_ABS)
+			sm = 0;
+#endif ASLD
+		sm = small(sm, 2);
+		if (sm)
+			mrg_2 = 070;
+	}
+}
+
+ea6x(rg, ir, sz)
+{
+	mrg_2 = 060 | rg;
+	checksize(sz, 2|4);
+	index(ir<<12 | (sz&0200)<<4);
+}
+
+ea72()
+{
+	mrg_2 = 072;
+	exp_2.val -= (DOTVAL + 2);
+}
+
+ea73(ri, sz)
+{
+	mrg_2 = 073;
+	exp_2.val -= (DOTVAL + 2);
+	checksize(sz, 2|4);
+	index(ri<<12 | (sz&0200)<<4);
+}
diff --git a/mach/ns/as/Makefile b/mach/ns/as/Makefile
index 012b03822..695d2b20e 100644
--- a/mach/ns/as/Makefile
+++ b/mach/ns/as/Makefile
@@ -6,14 +6,14 @@ CPP	= $(EM)/lib/cpp
 DEF	=
 
 FFLAG	=
-CFLAGS	= $(FFLAG) -O -I$h $(DEF)
+CFLAGS	= $(FFLAG) -O -I. -I$h $(DEF)
 YFLAGS	= -d
 LDFLAGS	= $(FFLAG) -i
 
 CSRC	= $(CDIR)/comm3.c $(CDIR)/comm4.c $(CDIR)/comm5.c \
 	  $(CDIR)/comm6.c $(CDIR)/comm7.c $(CDIR)/comm8.c
-COBJ	= $(CDIR)/comm3.o $(CDIR)/comm4.o $(CDIR)/comm5.o \
-	  $(CDIR)/comm6.o $(CDIR)/comm7.o $(CDIR)/comm8.o
+COBJ	= comm3.o comm4.o comm5.o \
+	  comm6.o comm7.o comm8.o
 MACH	= mach0.c mach1.c mach2.c mach3.c mach4.c mach5.c
 COMM	= $(CDIR)/comm0.h $(CDIR)/comm1.h $(CDIR)/comm2.y $(CSRC)
 
@@ -37,7 +37,7 @@ as:	$(COBJ) as.o
 	$(CC) $(LDFLAGS) $(COBJ) as.o -o as
 
 as.y:	$(CDIR)/comm2.y
-	$(CPP) -P -I$h $(DEF) $(CDIR)/comm2.y >as.y
+	$(CPP) -P -I. -I$h $(DEF) $(CDIR)/comm2.y >as.y
 	@echo "expect 1 shift/reduce conflict"
 
 lint:   $(CSRC) as.c
@@ -51,3 +51,15 @@ as.y:		mach2.c
 comm3.o:	mach3.c
 as.y:		mach4.c
 comm8.o:	mach5.c
+comm3.o:	$(CDIR)/comm3.c
+		$(CC) -c $(CFLAGS) $(CDIR)/comm3.c
+comm4.o:	$(CDIR)/comm4.c
+		$(CC) -c $(CFLAGS) $(CDIR)/comm4.c
+comm5.o:	$(CDIR)/comm5.c
+		$(CC) -c $(CFLAGS) $(CDIR)/comm5.c
+comm6.o:	$(CDIR)/comm6.c
+		$(CC) -c $(CFLAGS) $(CDIR)/comm6.c
+comm7.o:	$(CDIR)/comm7.c
+		$(CC) -c $(CFLAGS) $(CDIR)/comm7.c
+comm8.o:	$(CDIR)/comm8.c
+		$(CC) -c $(CFLAGS) $(CDIR)/comm8.c
diff --git a/mach/pdp/as/Makefile b/mach/pdp/as/Makefile
index 012b03822..695d2b20e 100644
--- a/mach/pdp/as/Makefile
+++ b/mach/pdp/as/Makefile
@@ -6,14 +6,14 @@ CPP	= $(EM)/lib/cpp
 DEF	=
 
 FFLAG	=
-CFLAGS	= $(FFLAG) -O -I$h $(DEF)
+CFLAGS	= $(FFLAG) -O -I. -I$h $(DEF)
 YFLAGS	= -d
 LDFLAGS	= $(FFLAG) -i
 
 CSRC	= $(CDIR)/comm3.c $(CDIR)/comm4.c $(CDIR)/comm5.c \
 	  $(CDIR)/comm6.c $(CDIR)/comm7.c $(CDIR)/comm8.c
-COBJ	= $(CDIR)/comm3.o $(CDIR)/comm4.o $(CDIR)/comm5.o \
-	  $(CDIR)/comm6.o $(CDIR)/comm7.o $(CDIR)/comm8.o
+COBJ	= comm3.o comm4.o comm5.o \
+	  comm6.o comm7.o comm8.o
 MACH	= mach0.c mach1.c mach2.c mach3.c mach4.c mach5.c
 COMM	= $(CDIR)/comm0.h $(CDIR)/comm1.h $(CDIR)/comm2.y $(CSRC)
 
@@ -37,7 +37,7 @@ as:	$(COBJ) as.o
 	$(CC) $(LDFLAGS) $(COBJ) as.o -o as
 
 as.y:	$(CDIR)/comm2.y
-	$(CPP) -P -I$h $(DEF) $(CDIR)/comm2.y >as.y
+	$(CPP) -P -I. -I$h $(DEF) $(CDIR)/comm2.y >as.y
 	@echo "expect 1 shift/reduce conflict"
 
 lint:   $(CSRC) as.c
@@ -51,3 +51,15 @@ as.y:		mach2.c
 comm3.o:	mach3.c
 as.y:		mach4.c
 comm8.o:	mach5.c
+comm3.o:	$(CDIR)/comm3.c
+		$(CC) -c $(CFLAGS) $(CDIR)/comm3.c
+comm4.o:	$(CDIR)/comm4.c
+		$(CC) -c $(CFLAGS) $(CDIR)/comm4.c
+comm5.o:	$(CDIR)/comm5.c
+		$(CC) -c $(CFLAGS) $(CDIR)/comm5.c
+comm6.o:	$(CDIR)/comm6.c
+		$(CC) -c $(CFLAGS) $(CDIR)/comm6.c
+comm7.o:	$(CDIR)/comm7.c
+		$(CC) -c $(CFLAGS) $(CDIR)/comm7.c
+comm8.o:	$(CDIR)/comm8.c
+		$(CC) -c $(CFLAGS) $(CDIR)/comm8.c
diff --git a/mach/proto/as/Makefile b/mach/proto/as/Makefile
index 012b03822..695d2b20e 100644
--- a/mach/proto/as/Makefile
+++ b/mach/proto/as/Makefile
@@ -6,14 +6,14 @@ CPP	= $(EM)/lib/cpp
 DEF	=
 
 FFLAG	=
-CFLAGS	= $(FFLAG) -O -I$h $(DEF)
+CFLAGS	= $(FFLAG) -O -I. -I$h $(DEF)
 YFLAGS	= -d
 LDFLAGS	= $(FFLAG) -i
 
 CSRC	= $(CDIR)/comm3.c $(CDIR)/comm4.c $(CDIR)/comm5.c \
 	  $(CDIR)/comm6.c $(CDIR)/comm7.c $(CDIR)/comm8.c
-COBJ	= $(CDIR)/comm3.o $(CDIR)/comm4.o $(CDIR)/comm5.o \
-	  $(CDIR)/comm6.o $(CDIR)/comm7.o $(CDIR)/comm8.o
+COBJ	= comm3.o comm4.o comm5.o \
+	  comm6.o comm7.o comm8.o
 MACH	= mach0.c mach1.c mach2.c mach3.c mach4.c mach5.c
 COMM	= $(CDIR)/comm0.h $(CDIR)/comm1.h $(CDIR)/comm2.y $(CSRC)
 
@@ -37,7 +37,7 @@ as:	$(COBJ) as.o
 	$(CC) $(LDFLAGS) $(COBJ) as.o -o as
 
 as.y:	$(CDIR)/comm2.y
-	$(CPP) -P -I$h $(DEF) $(CDIR)/comm2.y >as.y
+	$(CPP) -P -I. -I$h $(DEF) $(CDIR)/comm2.y >as.y
 	@echo "expect 1 shift/reduce conflict"
 
 lint:   $(CSRC) as.c
@@ -51,3 +51,15 @@ as.y:		mach2.c
 comm3.o:	mach3.c
 as.y:		mach4.c
 comm8.o:	mach5.c
+comm3.o:	$(CDIR)/comm3.c
+		$(CC) -c $(CFLAGS) $(CDIR)/comm3.c
+comm4.o:	$(CDIR)/comm4.c
+		$(CC) -c $(CFLAGS) $(CDIR)/comm4.c
+comm5.o:	$(CDIR)/comm5.c
+		$(CC) -c $(CFLAGS) $(CDIR)/comm5.c
+comm6.o:	$(CDIR)/comm6.c
+		$(CC) -c $(CFLAGS) $(CDIR)/comm6.c
+comm7.o:	$(CDIR)/comm7.c
+		$(CC) -c $(CFLAGS) $(CDIR)/comm7.c
+comm8.o:	$(CDIR)/comm8.c
+		$(CC) -c $(CFLAGS) $(CDIR)/comm8.c
diff --git a/mach/s2650/as/Makefile b/mach/s2650/as/Makefile
index 012b03822..695d2b20e 100644
--- a/mach/s2650/as/Makefile
+++ b/mach/s2650/as/Makefile
@@ -6,14 +6,14 @@ CPP	= $(EM)/lib/cpp
 DEF	=
 
 FFLAG	=
-CFLAGS	= $(FFLAG) -O -I$h $(DEF)
+CFLAGS	= $(FFLAG) -O -I. -I$h $(DEF)
 YFLAGS	= -d
 LDFLAGS	= $(FFLAG) -i
 
 CSRC	= $(CDIR)/comm3.c $(CDIR)/comm4.c $(CDIR)/comm5.c \
 	  $(CDIR)/comm6.c $(CDIR)/comm7.c $(CDIR)/comm8.c
-COBJ	= $(CDIR)/comm3.o $(CDIR)/comm4.o $(CDIR)/comm5.o \
-	  $(CDIR)/comm6.o $(CDIR)/comm7.o $(CDIR)/comm8.o
+COBJ	= comm3.o comm4.o comm5.o \
+	  comm6.o comm7.o comm8.o
 MACH	= mach0.c mach1.c mach2.c mach3.c mach4.c mach5.c
 COMM	= $(CDIR)/comm0.h $(CDIR)/comm1.h $(CDIR)/comm2.y $(CSRC)
 
@@ -37,7 +37,7 @@ as:	$(COBJ) as.o
 	$(CC) $(LDFLAGS) $(COBJ) as.o -o as
 
 as.y:	$(CDIR)/comm2.y
-	$(CPP) -P -I$h $(DEF) $(CDIR)/comm2.y >as.y
+	$(CPP) -P -I. -I$h $(DEF) $(CDIR)/comm2.y >as.y
 	@echo "expect 1 shift/reduce conflict"
 
 lint:   $(CSRC) as.c
@@ -51,3 +51,15 @@ as.y:		mach2.c
 comm3.o:	mach3.c
 as.y:		mach4.c
 comm8.o:	mach5.c
+comm3.o:	$(CDIR)/comm3.c
+		$(CC) -c $(CFLAGS) $(CDIR)/comm3.c
+comm4.o:	$(CDIR)/comm4.c
+		$(CC) -c $(CFLAGS) $(CDIR)/comm4.c
+comm5.o:	$(CDIR)/comm5.c
+		$(CC) -c $(CFLAGS) $(CDIR)/comm5.c
+comm6.o:	$(CDIR)/comm6.c
+		$(CC) -c $(CFLAGS) $(CDIR)/comm6.c
+comm7.o:	$(CDIR)/comm7.c
+		$(CC) -c $(CFLAGS) $(CDIR)/comm7.c
+comm8.o:	$(CDIR)/comm8.c
+		$(CC) -c $(CFLAGS) $(CDIR)/comm8.c
diff --git a/mach/vax4/as/Makefile b/mach/vax4/as/Makefile
index 012b03822..695d2b20e 100644
--- a/mach/vax4/as/Makefile
+++ b/mach/vax4/as/Makefile
@@ -6,14 +6,14 @@ CPP	= $(EM)/lib/cpp
 DEF	=
 
 FFLAG	=
-CFLAGS	= $(FFLAG) -O -I$h $(DEF)
+CFLAGS	= $(FFLAG) -O -I. -I$h $(DEF)
 YFLAGS	= -d
 LDFLAGS	= $(FFLAG) -i
 
 CSRC	= $(CDIR)/comm3.c $(CDIR)/comm4.c $(CDIR)/comm5.c \
 	  $(CDIR)/comm6.c $(CDIR)/comm7.c $(CDIR)/comm8.c
-COBJ	= $(CDIR)/comm3.o $(CDIR)/comm4.o $(CDIR)/comm5.o \
-	  $(CDIR)/comm6.o $(CDIR)/comm7.o $(CDIR)/comm8.o
+COBJ	= comm3.o comm4.o comm5.o \
+	  comm6.o comm7.o comm8.o
 MACH	= mach0.c mach1.c mach2.c mach3.c mach4.c mach5.c
 COMM	= $(CDIR)/comm0.h $(CDIR)/comm1.h $(CDIR)/comm2.y $(CSRC)
 
@@ -37,7 +37,7 @@ as:	$(COBJ) as.o
 	$(CC) $(LDFLAGS) $(COBJ) as.o -o as
 
 as.y:	$(CDIR)/comm2.y
-	$(CPP) -P -I$h $(DEF) $(CDIR)/comm2.y >as.y
+	$(CPP) -P -I. -I$h $(DEF) $(CDIR)/comm2.y >as.y
 	@echo "expect 1 shift/reduce conflict"
 
 lint:   $(CSRC) as.c
@@ -51,3 +51,15 @@ as.y:		mach2.c
 comm3.o:	mach3.c
 as.y:		mach4.c
 comm8.o:	mach5.c
+comm3.o:	$(CDIR)/comm3.c
+		$(CC) -c $(CFLAGS) $(CDIR)/comm3.c
+comm4.o:	$(CDIR)/comm4.c
+		$(CC) -c $(CFLAGS) $(CDIR)/comm4.c
+comm5.o:	$(CDIR)/comm5.c
+		$(CC) -c $(CFLAGS) $(CDIR)/comm5.c
+comm6.o:	$(CDIR)/comm6.c
+		$(CC) -c $(CFLAGS) $(CDIR)/comm6.c
+comm7.o:	$(CDIR)/comm7.c
+		$(CC) -c $(CFLAGS) $(CDIR)/comm7.c
+comm8.o:	$(CDIR)/comm8.c
+		$(CC) -c $(CFLAGS) $(CDIR)/comm8.c
diff --git a/mach/z80/as/Makefile b/mach/z80/as/Makefile
index 012b03822..695d2b20e 100644
--- a/mach/z80/as/Makefile
+++ b/mach/z80/as/Makefile
@@ -6,14 +6,14 @@ CPP	= $(EM)/lib/cpp
 DEF	=
 
 FFLAG	=
-CFLAGS	= $(FFLAG) -O -I$h $(DEF)
+CFLAGS	= $(FFLAG) -O -I. -I$h $(DEF)
 YFLAGS	= -d
 LDFLAGS	= $(FFLAG) -i
 
 CSRC	= $(CDIR)/comm3.c $(CDIR)/comm4.c $(CDIR)/comm5.c \
 	  $(CDIR)/comm6.c $(CDIR)/comm7.c $(CDIR)/comm8.c
-COBJ	= $(CDIR)/comm3.o $(CDIR)/comm4.o $(CDIR)/comm5.o \
-	  $(CDIR)/comm6.o $(CDIR)/comm7.o $(CDIR)/comm8.o
+COBJ	= comm3.o comm4.o comm5.o \
+	  comm6.o comm7.o comm8.o
 MACH	= mach0.c mach1.c mach2.c mach3.c mach4.c mach5.c
 COMM	= $(CDIR)/comm0.h $(CDIR)/comm1.h $(CDIR)/comm2.y $(CSRC)
 
@@ -37,7 +37,7 @@ as:	$(COBJ) as.o
 	$(CC) $(LDFLAGS) $(COBJ) as.o -o as
 
 as.y:	$(CDIR)/comm2.y
-	$(CPP) -P -I$h $(DEF) $(CDIR)/comm2.y >as.y
+	$(CPP) -P -I. -I$h $(DEF) $(CDIR)/comm2.y >as.y
 	@echo "expect 1 shift/reduce conflict"
 
 lint:   $(CSRC) as.c
@@ -51,3 +51,15 @@ as.y:		mach2.c
 comm3.o:	mach3.c
 as.y:		mach4.c
 comm8.o:	mach5.c
+comm3.o:	$(CDIR)/comm3.c
+		$(CC) -c $(CFLAGS) $(CDIR)/comm3.c
+comm4.o:	$(CDIR)/comm4.c
+		$(CC) -c $(CFLAGS) $(CDIR)/comm4.c
+comm5.o:	$(CDIR)/comm5.c
+		$(CC) -c $(CFLAGS) $(CDIR)/comm5.c
+comm6.o:	$(CDIR)/comm6.c
+		$(CC) -c $(CFLAGS) $(CDIR)/comm6.c
+comm7.o:	$(CDIR)/comm7.c
+		$(CC) -c $(CFLAGS) $(CDIR)/comm7.c
+comm8.o:	$(CDIR)/comm8.c
+		$(CC) -c $(CFLAGS) $(CDIR)/comm8.c
diff --git a/mach/z8000/as/Makefile b/mach/z8000/as/Makefile
index 012b03822..695d2b20e 100644
--- a/mach/z8000/as/Makefile
+++ b/mach/z8000/as/Makefile
@@ -6,14 +6,14 @@ CPP	= $(EM)/lib/cpp
 DEF	=
 
 FFLAG	=
-CFLAGS	= $(FFLAG) -O -I$h $(DEF)
+CFLAGS	= $(FFLAG) -O -I. -I$h $(DEF)
 YFLAGS	= -d
 LDFLAGS	= $(FFLAG) -i
 
 CSRC	= $(CDIR)/comm3.c $(CDIR)/comm4.c $(CDIR)/comm5.c \
 	  $(CDIR)/comm6.c $(CDIR)/comm7.c $(CDIR)/comm8.c
-COBJ	= $(CDIR)/comm3.o $(CDIR)/comm4.o $(CDIR)/comm5.o \
-	  $(CDIR)/comm6.o $(CDIR)/comm7.o $(CDIR)/comm8.o
+COBJ	= comm3.o comm4.o comm5.o \
+	  comm6.o comm7.o comm8.o
 MACH	= mach0.c mach1.c mach2.c mach3.c mach4.c mach5.c
 COMM	= $(CDIR)/comm0.h $(CDIR)/comm1.h $(CDIR)/comm2.y $(CSRC)
 
@@ -37,7 +37,7 @@ as:	$(COBJ) as.o
 	$(CC) $(LDFLAGS) $(COBJ) as.o -o as
 
 as.y:	$(CDIR)/comm2.y
-	$(CPP) -P -I$h $(DEF) $(CDIR)/comm2.y >as.y
+	$(CPP) -P -I. -I$h $(DEF) $(CDIR)/comm2.y >as.y
 	@echo "expect 1 shift/reduce conflict"
 
 lint:   $(CSRC) as.c
@@ -51,3 +51,15 @@ as.y:		mach2.c
 comm3.o:	mach3.c
 as.y:		mach4.c
 comm8.o:	mach5.c
+comm3.o:	$(CDIR)/comm3.c
+		$(CC) -c $(CFLAGS) $(CDIR)/comm3.c
+comm4.o:	$(CDIR)/comm4.c
+		$(CC) -c $(CFLAGS) $(CDIR)/comm4.c
+comm5.o:	$(CDIR)/comm5.c
+		$(CC) -c $(CFLAGS) $(CDIR)/comm5.c
+comm6.o:	$(CDIR)/comm6.c
+		$(CC) -c $(CFLAGS) $(CDIR)/comm6.c
+comm7.o:	$(CDIR)/comm7.c
+		$(CC) -c $(CFLAGS) $(CDIR)/comm7.c
+comm8.o:	$(CDIR)/comm8.c
+		$(CC) -c $(CFLAGS) $(CDIR)/comm8.c
diff --git a/util/led/READ_ME b/util/led/READ_ME
new file mode 100644
index 000000000..e612fa34b
--- /dev/null
+++ b/util/led/READ_ME
@@ -0,0 +1,600 @@
+You may want to change mach.c in this directory.
+
+Archives MUST have a table of contents. Arch in subdirectory arch
+automatically makes one when you change an archive.
+
+Several changes in the assembler were needed to have it generate the 
+necessary output.
+A contextual diff follows. You can apply them as follows:
+patch -d /usr/em/philips/mach/68000/as < READ_ME
+
+*** comm0.h.old	Thu Dec  6 16:18:39 1984
+--- comm0.h	Thu Dec  6 17:49:51 1984
+***************
+*** 213,218
+  
+  /*
+   * extra type bits out of S_ETC, internal use only
+   * S_COM:
+   *  - symbols declared by .comm
+   * S_VAR:
+
+--- 213,219 -----
+  
+  /*
+   * extra type bits out of S_ETC, internal use only
++ #ifndef DUK
+   * S_COM:
+   *  - symbols declared by .comm
+  #endif DUK
+***************
+*** 215,220
+   * extra type bits out of S_ETC, internal use only
+   * S_COM:
+   *  - symbols declared by .comm
+   * S_VAR:
+   *  - type not known at end of PASS_1 (S_VAR|S_UND)
+   *  - value not known at end of PASS_2 (S_VAR|S_ABS)
+
+--- 216,222 -----
+  #ifndef DUK
+   * S_COM:
+   *  - symbols declared by .comm
++ #endif DUK
+   * S_VAR:
+   *  - type not known at end of PASS_1 (S_VAR|S_UND)
+   *  - value not known at end of PASS_2 (S_VAR|S_ABS)
+***************
+*** 221,226
+   * S_DOT:
+   *  - dot expression
+   */
+  #define	S_COM		0x0100
+  #define	S_VAR		0x0200
+  #define	S_DOT		0x0400
+
+--- 223,229 -----
+   * S_DOT:
+   *  - dot expression
+   */
++ #ifndef DUK
+  #define	S_COM		0x0100
+  #endif DUK
+  #define	S_VAR		0x0200
+***************
+*** 222,227
+   *  - dot expression
+   */
+  #define	S_COM		0x0100
+  #define	S_VAR		0x0200
+  #define	S_DOT		0x0400
+  /* should be tested by preprocessor
+
+--- 225,231 -----
+   */
+  #ifndef DUK
+  #define	S_COM		0x0100
++ #endif DUK
+  #define	S_VAR		0x0200
+  #define	S_DOT		0x0400
+  /* should be tested by preprocessor
+*** comm2.y.old	Thu Dec  6 16:19:07 1984
+--- comm2.y	Thu Dec  6 16:02:19 1984
+***************
+*** 229,234
+  			{
+  #ifdef RELOCATION
+  				if (rflag != 0 && PASS_RELO)
+  					newrelo($1.typ, (int)$<y_word>0);
+  #endif
+  				emitx($1.val, (int)$<y_word>0);
+
+--- 229,239 -----
+  			{
+  #ifdef RELOCATION
+  				if (rflag != 0 && PASS_RELO)
++ #ifdef DUK
++ 					newrelo($1.typ,
++ 						(int)$<y_word>0 | RELBR | RELWR
++ 					);
++ #else DUK
+  					newrelo($1.typ, (int)$<y_word>0);
+  #endif DUK
+  #endif
+***************
+*** 230,235
+  #ifdef RELOCATION
+  				if (rflag != 0 && PASS_RELO)
+  					newrelo($1.typ, (int)$<y_word>0);
+  #endif
+  				emitx($1.val, (int)$<y_word>0);
+  			}
+
+--- 235,241 -----
+  					);
+  #else DUK
+  					newrelo($1.typ, (int)$<y_word>0);
++ #endif DUK
+  #endif
+  				emitx($1.val, (int)$<y_word>0);
+  			}
+***************
+*** 237,242
+  			{
+  #ifdef RELOCATION
+  				if (rflag != 0 && PASS_RELO)
+  					newrelo($3.typ, (int)$<y_word>0);
+  #endif
+  				emitx($3.val, (int)$<y_word>0);
+
+--- 243,253 -----
+  			{
+  #ifdef RELOCATION
+  				if (rflag != 0 && PASS_RELO)
++ #ifdef DUK
++ 					newrelo($3.typ,
++ 						(int)$<y_word>0 | RELBR | RELWR
++ 					);
++ #else DUK
+  					newrelo($3.typ, (int)$<y_word>0);
+  #endif DUK
+  #endif
+***************
+*** 238,243
+  #ifdef RELOCATION
+  				if (rflag != 0 && PASS_RELO)
+  					newrelo($3.typ, (int)$<y_word>0);
+  #endif
+  				emitx($3.val, (int)$<y_word>0);
+  			}
+
+--- 249,255 -----
+  					);
+  #else DUK
+  					newrelo($3.typ, (int)$<y_word>0);
++ #endif DUK
+  #endif
+  				emitx($3.val, (int)$<y_word>0);
+  			}
+*** comm3.c.old	Wed Jul 11 09:22:24 1984
+--- comm3.c	Fri Dec  7 13:06:26 1984
+***************
+*** 11,16
+  
+  struct outhead	outhead = {
+  	O_MAGIC, O_STAMP, 0
+  #ifdef BYTES_REVERSED
+  	| HF_BREV
+  #endif
+
+--- 11,17 -----
+  
+  struct outhead	outhead = {
+  	O_MAGIC, O_STAMP, 0
++ #ifndef DUK
+  #ifdef BYTES_REVERSED
+  	| HF_BREV
+  #endif
+***************
+*** 17,22
+  #ifdef WORDS_REVERSED
+  	| HF_WREV
+  #endif
+  };
+  
+  #include	"y.tab.h"
+
+--- 18,24 -----
+  #ifdef WORDS_REVERSED
+  	| HF_WREV
+  #endif
++ #endif DUK
+  };
+  
+  #include	"y.tab.h"
+*** comm5.c.old	Thu Dec  6 16:19:40 1984
+--- comm5.c	Thu Oct 11 14:03:27 1984
+***************
+*** 162,167
+  #endif
+  	case STRING:
+  		p = stringbuf;
+  		*p++ = n = getc(tempfile); break;
+  	case OP_EQ:
+  	case OP_NE:
+
+--- 162,172 -----
+  #endif
+  	case STRING:
+  		p = stringbuf;
++ #ifdef DUK
++ 		*p++ = n = getc(tempfile);
++ 		p[n] = '\0';
++ 		break;
++ #else DUK
+  		*p++ = n = getc(tempfile); break;
+  #endif DUK
+  	case OP_EQ:
+***************
+*** 163,168
+  	case STRING:
+  		p = stringbuf;
+  		*p++ = n = getc(tempfile); break;
+  	case OP_EQ:
+  	case OP_NE:
+  	case OP_LE:
+
+--- 168,174 -----
+  		break;
+  #else DUK
+  		*p++ = n = getc(tempfile); break;
++ #endif DUK
+  	case OP_EQ:
+  	case OP_NE:
+  	case OP_LE:
+***************
+*** 354,359
+  			break;
+  		if (c == '\\')
+  			c = inescape();
+  		if (p >= &stringbuf[STRINGMAX])
+  			fatal("string buffer overflow");
+  		*p++ = c;
+
+--- 360,368 -----
+  			break;
+  		if (c == '\\')
+  			c = inescape();
++ #ifdef DUK
++ 		if (p >= &stringbuf[STRINGMAX - 1])
++ #else DUK
+  		if (p >= &stringbuf[STRINGMAX])
+  #endif DUK
+  			fatal("string buffer overflow");
+***************
+*** 355,360
+  		if (c == '\\')
+  			c = inescape();
+  		if (p >= &stringbuf[STRINGMAX])
+  			fatal("string buffer overflow");
+  		*p++ = c;
+  	}
+
+--- 364,370 -----
+  		if (p >= &stringbuf[STRINGMAX - 1])
+  #else DUK
+  		if (p >= &stringbuf[STRINGMAX])
++ #endif DUK
+  			fatal("string buffer overflow");
+  		*p++ = c;
+  	}
+***************
+*** 359,364
+  		*p++ = c;
+  	}
+  	stringbuf[0] = p - stringbuf - 1;
+  	return(STRING);
+  }
+  
+
+--- 369,377 -----
+  		*p++ = c;
+  	}
+  	stringbuf[0] = p - stringbuf - 1;
++ #ifdef DUK
++ 	*p = '\0';
++ #endif DUK
+  	return(STRING);
+  }
+  
+*** comm6.c.old	Thu Dec  6 16:20:22 1984
+--- comm6.c	Wed Oct  3 15:59:31 1984
+***************
+*** 106,111
+  		sp = &sect[typ - S_MIN];
+  		sp->s_item = ip;
+  		sp->s_lign = ALIGNSECT;
+  		ip->i_type = typ | S_EXT;
+  		ip->i_valu = 0;
+  	} else if (typ >= S_MIN) {
+
+--- 106,114 -----
+  		sp = &sect[typ - S_MIN];
+  		sp->s_item = ip;
+  		sp->s_lign = ALIGNSECT;
++ #ifdef DUK
++ 		ip->i_type = typ;
++ #else DUK
+  		ip->i_type = typ | S_EXT;
+  #endif DUK
+  		ip->i_valu = 0;
+***************
+*** 107,112
+  		sp->s_item = ip;
+  		sp->s_lign = ALIGNSECT;
+  		ip->i_type = typ | S_EXT;
+  		ip->i_valu = 0;
+  	} else if (typ >= S_MIN) {
+  		sp = &sect[typ - S_MIN];
+
+--- 110,116 -----
+  		ip->i_type = typ;
+  #else DUK
+  		ip->i_type = typ | S_EXT;
++ #endif DUK
+  		ip->i_valu = 0;
+  	} else if (typ >= S_MIN) {
+  		sp = &sect[typ - S_MIN];
+***************
+*** 180,185
+  		 * for possible relocation
+  		 */
+  		ip->i_valu = outhead.oh_nname;
+  	newsymb(ip->i_name, S_EXT|DOTTYP, (short)0, val);
+  #endif
+  }
+
+--- 184,192 -----
+  		 * for possible relocation
+  		 */
+  		ip->i_valu = outhead.oh_nname;
++ #ifdef DUK
++ 	newsymb(ip->i_name, S_COM|S_EXT|DOTTYP, (short)0, val);
++ #else DUK
+  	newsymb(ip->i_name, S_EXT|DOTTYP, (short)0, val);
+  #endif DUK
+  #endif
+***************
+*** 181,186
+  		 */
+  		ip->i_valu = outhead.oh_nname;
+  	newsymb(ip->i_name, S_EXT|DOTTYP, (short)0, val);
+  #endif
+  }
+  
+
+--- 188,194 -----
+  	newsymb(ip->i_name, S_COM|S_EXT|DOTTYP, (short)0, val);
+  #else DUK
+  	newsymb(ip->i_name, S_EXT|DOTTYP, (short)0, val);
++ #endif DUK
+  #endif
+  }
+  
+***************
+*** 255,260
+  short s;
+  {
+  	struct outrelo outrelo;
+  
+  	if (rflag == 0)
+  		return;
+
+--- 263,271 -----
+  short s;
+  {
+  	struct outrelo outrelo;
++ #ifdef DUK
++ 	int	iscomm;
++ #endif DUK
+  
+  	if (rflag == 0)
+  		return;
+***************
+*** 272,277
+  	 *	b=a
+  	 *  a:	.data2	0
+  	 */
+  	s &= ~S_COM;
+  	if ((n & RELPC) == 0 && s == S_ABS)
+  		return;
+
+--- 283,291 -----
+  	 *	b=a
+  	 *  a:	.data2	0
+  	 */
++ #ifdef DUK
++ 	iscomm = s & S_COM;
++ #endif DUK
+  	s &= ~S_COM;
+  	if ((n & RELPC) == 0 && s == S_ABS)
+  		return;
+***************
+*** 285,290
+  	outrelo.or_type = (char)n;
+  	outrelo.or_sect = (char)DOTTYP;
+  #ifndef ASLD
+  	if (s == S_UND) {
+  		assert(relonami != 0);
+  		outrelo.or_nami = relonami-1;
+
+--- 299,307 -----
+  	outrelo.or_type = (char)n;
+  	outrelo.or_sect = (char)DOTTYP;
+  #ifndef ASLD
++ #ifdef DUK
++ 	if (s == S_UND || iscomm) {
++ #else DUK
+  	if (s == S_UND) {
+  #endif DUK
+  		assert(relonami != 0);
+***************
+*** 286,291
+  	outrelo.or_sect = (char)DOTTYP;
+  #ifndef ASLD
+  	if (s == S_UND) {
+  		assert(relonami != 0);
+  		outrelo.or_nami = relonami-1;
+  		relonami = 0;
+
+--- 303,309 -----
+  	if (s == S_UND || iscomm) {
+  #else DUK
+  	if (s == S_UND) {
++ #endif DUK
+  		assert(relonami != 0);
+  		outrelo.or_nami = relonami-1;
+  		relonami = 0;
+*** comm7.c.old	Thu Dec  6 16:20:50 1984
+--- comm7.c	Wed Oct  3 16:35:31 1984
+***************
+*** 19,24
+  		return(ip->i_valu);
+  	return(ip->i_valu + sect[typ].s_base);
+  #else
+  	if ((ip->i_type & S_TYP) == S_UND) {
+  		if (pass == PASS_3) {
+  			if (relonami != 0)
+
+--- 19,27 -----
+  		return(ip->i_valu);
+  	return(ip->i_valu + sect[typ].s_base);
+  #else
++ #ifdef DUK
++ 	if ((ip->i_type & S_TYP) == S_UND || (ip->i_type & S_COM)) {
++ #else DUK
+  	if ((ip->i_type & S_TYP) == S_UND) {
+  #endif DUK
+  		if (pass == PASS_3) {
+***************
+*** 20,25
+  	return(ip->i_valu + sect[typ].s_base);
+  #else
+  	if ((ip->i_type & S_TYP) == S_UND) {
+  		if (pass == PASS_3) {
+  			if (relonami != 0)
+  				serror("relocation error");
+
+--- 23,29 -----
+  	if ((ip->i_type & S_TYP) == S_UND || (ip->i_type & S_COM)) {
+  #else DUK
+  	if ((ip->i_type & S_TYP) == S_UND) {
++ #endif DUK
+  		if (pass == PASS_3) {
+  			if (relonami != 0)
+  				serror("relocation error");
+*** mach0.c.old	Thu Dec  6 16:21:11 1984
+--- mach0.c	Fri Sep 14 14:15:54 1984
+***************
+*** 1,3
+  /* @(#)mach0.c	1.5 */
+  /*
+   * Motorola 68000/68010 options
+
+--- 1,4 -----
++ #define DUK
+  /* @(#)mach0.c	1.5 */
+  /*
+   * Motorola 68000/68010 options
+*** mach4.c.old	Thu Dec  6 16:21:30 1984
+--- mach4.c	Thu Dec  6 16:05:00 1984
+***************
+*** 21,26
+  				fit(fitw($4.val));
+  				emit2($1 | $2);
+  #ifdef RELOCATION
+  				newrelo($4.typ, RELPC|RELO2);
+  #endif
+  				emit2(loww($4.val));
+
+--- 21,29 -----
+  				fit(fitw($4.val));
+  				emit2($1 | $2);
+  #ifdef RELOCATION
++ #ifdef DUK
++ 				newrelo($4.typ, RELPC|RELO2|RELBR|RELWR);
++ #else DUK
+  				newrelo($4.typ, RELPC|RELO2);
+  #endif DUK
+  #endif
+***************
+*** 22,27
+  				emit2($1 | $2);
+  #ifdef RELOCATION
+  				newrelo($4.typ, RELPC|RELO2);
+  #endif
+  				emit2(loww($4.val));
+  			}
+
+--- 25,31 -----
+  				newrelo($4.typ, RELPC|RELO2|RELBR|RELWR);
+  #else DUK
+  				newrelo($4.typ, RELPC|RELO2);
++ #endif DUK
+  #endif
+  				emit2(loww($4.val));
+  			}
+*** mach5.c.old	Thu Dec  6 16:21:54 1984
+--- mach5.c	Thu Dec  6 16:07:05 1984
+***************
+*** 37,42
+  #ifdef RELOCATION
+  	RELOMOVE(relonami, rel_1);
+  	if (flag & ~0xFF)
+  		newrelo(exp_1.typ, flag>>8);
+  #endif
+  	if (flag & PUTL)
+
+--- 37,45 -----
+  #ifdef RELOCATION
+  	RELOMOVE(relonami, rel_1);
+  	if (flag & ~0xFF)
++ #ifdef DUK
++ 		newrelo(exp_1.typ, (flag>>8) | RELBR | RELWR);
++ #else DUK
+  		newrelo(exp_1.typ, flag>>8);
+  #endif DUK
+  #endif
+***************
+*** 38,43
+  	RELOMOVE(relonami, rel_1);
+  	if (flag & ~0xFF)
+  		newrelo(exp_1.typ, flag>>8);
+  #endif
+  	if (flag & PUTL)
+  		emit4(exp_1.val);
+
+--- 41,47 -----
+  		newrelo(exp_1.typ, (flag>>8) | RELBR | RELWR);
+  #else DUK
+  		newrelo(exp_1.typ, flag>>8);
++ #endif DUK
+  #endif
+  	if (flag & PUTL)
+  		emit4(exp_1.val);
+***************
+*** 357,362
+  		fit(fitw(exp.val));
+  		emit2(opc);
+  #ifdef RELOCATION
+  		newrelo(exp.typ, RELPC|RELO2);
+  #endif
+  		emit2(loww(exp.val));
+
+--- 361,369 -----
+  		fit(fitw(exp.val));
+  		emit2(opc);
+  #ifdef RELOCATION
++ #ifdef DUK
++ 		newrelo(exp.typ, RELPC|RELO2|RELBR|RELWR);
++ #else DUK
+  		newrelo(exp.typ, RELPC|RELO2);
+  #endif DUK
+  #endif
+***************
+*** 358,363
+  		emit2(opc);
+  #ifdef RELOCATION
+  		newrelo(exp.typ, RELPC|RELO2);
+  #endif
+  		emit2(loww(exp.val));
+  	}
+
+--- 365,371 -----
+  		newrelo(exp.typ, RELPC|RELO2|RELBR|RELWR);
+  #else DUK
+  		newrelo(exp.typ, RELPC|RELO2);
++ #endif DUK
+  #endif
+  		emit2(loww(exp.val));
+  	}
diff --git a/util/led/WRONG b/util/led/WRONG
new file mode 100644
index 000000000..1c3a17b4f
--- /dev/null
+++ b/util/led/WRONG
@@ -0,0 +1,72 @@
+This file contains a summary of the bugs/features/inconsistencies
+Robbert and Ed found while making the linker usable for the 68000 and amoeba.
+
+There is something wrong with the way the combination of
+assembler and linker handle bss.
+In the original (Duk's) the assembler translated .space and, worse, .align
+to a sequence of zero's. If this sequence was at the end of a segment
+within a module the assembler didn't put zero in the segment but sets
+os_flen to the amount of space initialized before the zero space
+and os_size to the segements size. (os_size - os_flen) is then the
+size of the space filled by zeroes.
+For the sake of clarity, let us call 0...os_flen-1 initialized space
+and os_flen..os_size-1 uninitialized space.
+Now the linker, it does a nasty trick. It gathers the uninitialized space
+of all modules within a segment and puts it consequtively at the end
+of the segment. I think that I understand the reason: This way you can keep
+your resultant a.out smaller and you don't need a special bss segment
+(a la unix). But it is incorrect, the net effect is that the .align's
+at the end of segments within a module do have the desired effect,
+the space thus allocated is removed to 'higher spheres' thereby
+leaving the first items of that segment in the inmediatly following
+modules at unaligned boundaries.
+What should be done is that the linker leaves the initialized and
+the unitialized code alone and regards the whole a a chunk that can be
+relocated. Only producing a difference of os_size and os_flen for
+the zeroes at the very end of the segment. Thereby collapsing all
+.space (and .align) commands into zero space only if they
+are in consequtive modules at the end of the segment, with modules
+NOT containing any initialized data.
+I already, ad-hoc, changed the code of the assembler to producing 'hard'
+zeroes when aligning. The trick could also be done for .space
+but is a bit harder here.
+The reason: .space is also used to allocate space in the BSS segment
+if that produced zeroes in the a.out file (0..bss_size) we would
+have a.out files that are far too large.
+This feature of the linker also caused weird effects for names that
+are defined as the very last in a section within a module, without
+any data (initialized or uninitialezed) after it.
+The names a regarded as pointing into the uninitialized space and
+thus relocated to the end of the section.
+The sequence
+	.sect .data
+begdata:
+	.sect ....
+in an head_em.s resulted in the relocation of begdata to the END
+of the .data segment.
+
+Another problem form the commons:
+1 - Local commons are not handled by led and not produced by as.
+    using .comm for unitialized data is not correct because (from C)
+    two uninitialized static declarations for the same name in
+    different modules will be handled as external commons and thus
+    be overlayed.
+2 - The commons are allocated at the very end of the first pass, after the
+    initialezed data has been allocated in the segments. The order on which
+    the commons are allocated seems to be random. That way it is impossible
+    to produce a label that is guaranteed to point to the last byte (+1)
+    of a segment containing commons.
+    The currently used trick is to declare an extra segment after the
+    segment containing the commons. The first bytre in this segment
+    inmediatly follows the commons and can be used as _end or endbss.
+
+The archiver (aal) with the automatic ranlib is buggy.
+The only thing that seems to work at the moment is creation of a fresh
+archive.
+replacing/adding/deleting modules is likely to produce libraries
+with incorrect ranlib entries.
+The major troublemaker seems to be the extra padding byte at the end
+of odd sized modules.
+
+Led should return a non-zero value when it has found Undefined symbols
+or has another reason for not being able to produce a correct output file.
diff --git a/util/led/makedepend b/util/led/makedepend
new file mode 100755
index 000000000..3726c27b3
--- /dev/null
+++ b/util/led/makedepend
@@ -0,0 +1,23 @@
+: 'Without arguments, this program clears the dependencies between'
+: '.o files and included files in Makefile.'
+: 'With arguments, it replaces the dependencies between the .o files'
+: 'resulting from the argument files, and the included files in Makefile.'
+: 'Makefile must contain a line with on it the pattern AUTOAUTOAUTO.'
+: 'WARNING: a temporary file is created in the current directory.'
+: 'It is however rather unlikely that this file already exists'
+grep -s AUTOAUTOAUTO Makefile || {
+    echo "Makefile has wrong format." 1>&2
+    exit 1
+}
+for file do
+	ofile=`echo $file | sed 's/.$/o/'`
+	grep '^# *include.*"' $file | sed "s/.*\"\(.*\)\".*/$ofile:	\1/"
+done | sort -u > @@**##$$
+echo "Non-empty line." >> Makefile
+ed - Makefile <<'!'
+/AUTOAUTOAUTO/+,$d
+w
+q
+!
+cat @@**##$$ >> Makefile
+rm -f @@**##$$