Add compiler written in Déjà Vu

This will in time be used to load every module (including the main
file), making dvc obsolete for anything but compiling the compiler.

.gitignore

@@ -3,5 +3,7 @@
 *.o
 vm/std.c
 vm/std.vu
+vm/compiler.c
+vm/compiler.vu
 vm/vu
 vm/vu-dbg

gencompilerc.py

@@ -0,0 +1,22 @@
+with open('compiler.c', 'w') as f:
+	f.write('''#include "compiler.h"
+
+/* This file is generated by gencompilerc.py.
+ * Do not edit by hand.
+ * Also, this file is automatically updated
+ * by make when the project is built.
+ */
+
+V load_compiler(V global)
+{
+	char compiler[] = {''')
+	with open('compiler.vu', 'rb') as std:
+		for n, char in enumerate(std.read()):
+			if n % 8 == 0:
+				f.write("\n		")
+			f.write(r"'\x%02x', " % ord(char))
+	f.write('''
+	};
+	return load_memfile(compiler, sizeof compiler, a_to_string("(compiler)"), global);
+}
+''')

vm/Makefile

@@ -7,7 +7,7 @@ debug: vu-dbg
 clean:
 	rm *.o
 
-CFILES := $(wildcard *.c) $(shell if [ ! -e "std.c" ]; then echo "std.c"; fi)
+CFILES := $(wildcard *.c) $(shell if [ ! -e "std.c" ]; then echo "std.c"; fi) $(shell if [ ! -e "compiler.c" ]; then echo "compiler.c"; fi)
 OFILES = $(patsubst %.c, %.o, $(CFILES))
 ODBGFILES = $(patsubst %.c, %.dbg.o, $(CFILES))
 CFLAGS = -Wall -falign-functions=4
@@ -47,3 +47,9 @@ std.vu: std.dva
 
 std.c: std.vu
 	python ../genstdc.py
+
+compiler.vu: compiler.deja
+	python ../dvc.py $^ > $@
+
+compiler.c: compiler.vu
+	python ../gencompilerc.py