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

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

svn path=/trunk/yasm/; revision=2198
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PeterJohnson committed May 10, 2009
1 parent bccb81d commit e3b6f5bc9b3427bd3babda03ba73faa6f3f00500
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  1. +59 −0 tools/gencheck.py
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+#!/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"))

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