python ffi: test parsing

1 files changed, 29 insertions, 0 deletions

diff --git a/asm/ffi.py b/asm/ffi.py
new file mode 100644
index 0000000..87f6275
--- /dev/null
+++ b/asm/ffi.py
@@ -0,0 +1,29 @@
+from ctypes import *
+dll = CDLL("./libcreole.so")
+
+class CIns(Structure):
+	_fields_ = [("opcode", c_int),
+	            ("w_flags", c_ubyte * 3),
+	            ("w", c_uint * 3)]
+
+class CReader(Structure):
+	_fields_ = [("p", POINTER(c_ubyte)),
+	            ("left", c_size_t)]
+def make_uchar_buf(s):
+	buf = (c_ubyte * len(s))()
+	buf[:] = s[:]
+	return buf
+
+class CParseLineException(Exception):
+	pass
+def parse_line(line):
+	buf = make_uchar_buf(line)
+
+	rd = CReader(buf, len(line))
+	ins = CIns()
+
+	ret = dll.creole_parse_line(byref(ins), byref(rd))
+
+	if ret != 0:
+		raise CParseLineException(ret)
+	return (ins.opcode, list(zip(ins.w_flags, ins.w)))