create loadable binary as *.ulp

the binary is not practically tested, but looks good at first glance.

Author: ThomasWaldmann

esp32_ulp/__main__.py

@@ -1,15 +1,27 @@
 import sys
 
 from .assemble import Assembler
+from .link import make_binary
+
+
+def src_to_binary(lines):
+    assembler = Assembler()
+    assembler.assemble(lines)
+    assembler.dump()
+    text, data, bss_len = assembler.fetch()
+    return make_binary(text, data, bss_len)
 
 
 def main(fn):
     with open(fn) as f:
         lines = f.readlines()
 
-    assembler = Assembler()
-    assembler.assemble(lines)
-    assembler.dump()
+    binary = src_to_binary(lines)
+
+    if fn.endswith('.s') or fn.endswith('.S'):
+        fn = fn[:-2]
+    with open(fn + '.ulp', 'wb') as f:
+        f.write(binary)
 
 
 main(sys.argv[1])

esp32_ulp/assemble.py

@@ -78,6 +78,12 @@ def dump(self):
         print("%s section:" % BSS)
         print("size: %d" % self.offsets[BSS])
 
+    def fetch(self):
+        def get_bytes(section):
+            return b''.join(self.sections[section])
+
+        return get_bytes(TEXT), get_bytes(DATA), self.offsets[BSS]
+
     def d_text(self):
         self.section = TEXT