Add gencheck.py Python script to make it easier to generate expected …

…results

from long .asm files that generate simple binary output (e.g. for opcode
testing).

svn path=/trunk/yasm/; revision=2198

tools/gencheck.py

@@ -0,0 +1,59 @@
+#!/usr/bin/env python
+# Generate expected binary hexdump output from specially formatted asm file.
+#
+#  Copyright (C) 2009  Peter Johnson
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in the
+#    documentation and/or other materials provided with the distribution.
+#
+# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND OTHER CONTRIBUTORS ``AS IS''
+# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR OTHER CONTRIBUTORS BE
+# LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+# POSSIBILITY OF SUCH DAMAGE.
+
+def gen_expected(fout, fin):
+    count = 0
+    for line in fin:
+        if not line:
+            continue
+        if line.startswith(';'):
+            continue
+        # extract portion after ; character
+        (insn, sep, comment) = line.partition(';')
+        if not sep:
+            continue    # ; not found
+        # comment must be formatted as 2-char hex and/or 3-char octal bytes
+        # separated by spaces
+        bytes = []
+        for byte in comment.split():
+            if len(byte) == 2:
+                bytes.append(int(byte, 16))
+            elif len(byte) == 3:
+                bytes.append(int(byte, 8))
+            else:
+                break
+        for byte in bytes:
+            print >>fout, "%02x " % byte
+        count += 1
+    print "Processed %d instructions" % count
+
+
+if __name__ == "__main__":
+    import sys
+    if len(sys.argv) != 3:
+        print >>sys.stderr, "Usage: gencheck.py <in.asm> <out.hex>"
+        sys.exit(2)
+    gen_expected(open(sys.argv[2], "w"), open(sys.argv[1], "r"))