Start on assembly target

Makefile

@@ -1,70 +1,36 @@
-.SUFFIXES:
+TEE :=
 
 GCC_FLAGS := -g -O0 -Wall
 
+run: it1 it2
 
+it0:
+	echo "Hand made"
 
-all: it2-out
+it1:
+	cat it1-in.lang0 | python3 it0-out.py $(if $(TEE),| tee,> ) it1-out0.py
 
+	cat it1-in.lang0 | python3 it1-out0.py $(if $(TEE),| tee,> ) it1-out1.py
+	diff it1-out0.py it1-out1.py > it1-out1.diff
+	cat it1-in.lang0 | python3 it1-out1.py $(if $(TEE),| tee,> ) it1-out2.py
+	diff it1-out1.py it1-out2.py > it1-out2.diff
+	cat it1-in.lang0 | python3 it1-out2.py $(if $(TEE),| tee,> ) it1-out.py
+	diff it1-out2.py it1-out.py > it1-out.diff
 
+	# See how much our hand written code differs from resulting code
+	-diff it0-out.py it1-out0.py > it0-out0.diff
 
-# it0-out.py => Hand made
+it2: it1
-
+	cat it2-in.lang0 | python3 it1-out.py $(if $(TEE),| tee,> ) it2-out0.py
-
-
-it1-out0.py: it0-out.py it1-in.lang0
-	cat it1-in.lang0 | python3 it0-out.py > it1-out0.py
-
-it1-out1.py: it1-out0.py it1-in.lang0
-	cat it1-in.lang0 | python3 it1-out0.py > it1-out1.py
-# We can diff here since the target hasn't changed
-# The target for it0 is the same as for it1
-	diff it1-out0.py it1-out1.py
-
-it1-out2.py: it1-out1.py it1-in.lang0
-	cat it1-in.lang0 | python3 it1-out1.py > it1-out2.py
-	diff it1-out1.py it1-out2.py
-
-it1-out3.py: it1-out2.py it1-in.lang0
-	cat it1-in.lang0 | python3 it1-out2.py > it1-out3.py
-	diff it1-out2.py it1-out3.py
-
-it1-out.py: it1-out3.py
-	cp it1-out3.py it1-out.py
-
-
-
-it2-out0.py: it1-out.py it2-in.lang0
-	cat it2-in.lang0 | python3 it1-out.py > it2-out0.py
-
-# No gcc step since the target is still python here
-
-it2-out1.c: it2-out0.py it2-in.lang0
-	cat it2-in.lang0 | python3 it2-out0.py > it2-out1.c
-# 	diff it2-out0.py it2-out1.py Do not diff - the target changed so the output will be different
-
-it2-out1: it2-out1.c
-	gcc it2-out1.c -o it2-out1 $(GCC_FLAGS)
-
-it2-out2.c: it2-out1 it2-in.lang0
-	cat it2-in.lang0 | ./it2-out1 > it2-out2.c
-	diff it2-out1.c it2-out2.c
-
-it2-out2: it2-out2.c
-	gcc it2-out2.c -o it2-out2 $(GCC_FLAGS)
-
-it2-out3.c: it2-out2 it2-in.lang0
-	cat it2-in.lang0 | ./it2-out2 > it2-out3.c
-	diff it2-out2.c it2-out3.c
-
-it2-out3: it2-out3.c
-	gcc it2-out3.c -o it2-out3 $(GCC_FLAGS)
-
-it2-out: it2-out3
-	cp it2-out3 it2-out
-
 
+	cat it2-in.lang0 | python3 it2-out0.py $(if $(TEE),| tee,> ) it2-out1.c && gcc it2-out1.c -o it2-out1 $(GCC_FLAGS)
+#	diff it2-out0.c it2-out1.c > it2-out1.diff
+	cat it2-in.lang0 | ./it2-out1 $(if $(TEE),| tee,> ) it2-out2.c && gcc it2-out2.c -o it2-out2 $(GCC_FLAGS)
+	diff it2-out1.c it2-out2.c > it2-out2.diff
+	cat it2-in.lang0 | ./it2-out2 $(if $(TEE),| tee,> ) it2-out.c && gcc it2-out.c -o it2-out $(GCC_FLAGS)
+	diff it2-out2.c it2-out.c > it2-out.diff
 
 clean:
-	-rm it1-out* it2-out*
 	-rm it1-out* it2-out* it3-out*
+
+.PHONY: it2

README.md

@@ -154,12 +154,10 @@ How to run
 Install python3 and make
 
 ```sh
-make clean all
+make clean run
 ```
 
 Get more info
 ```
-make TRACE=1 clean all
+make TRACE=1 clean run
 ```
-
-You will now have a lang0 compiler in python for python in `./it1-out.py`, and one written in C for C in `./it2-out`.