1 files changed, 57 insertions, 0 deletions
diff --git a/firmware/fx2/include/generate_regs.py b/firmware/fx2/include/generate_regs.py
new file mode 100755
index 000000000..656cd5e81
--- /dev/null
+++ b/firmware/fx2/include/generate_regs.py
@@ -0,0 +1,57 @@
+#!/usr/bin/env python
+
+import os, os.path
+import re
+import sys
+
+
+# set srcdir to the directory that contains Makefile.am
+try:
+    srcdir = os.environ['srcdir']
+except KeyError, e:
+    srcdir = "."
+srcdir = srcdir + '/'
+
+def open_src (name, mode):
+    global srcdir
+    return open (os.path.join (srcdir, name), mode)
+
+
+def generate_fpga_regs (h_filename, v_filename):
+    const_width = 7                  # bit width of constants
+    
+    h_file = open_src (h_filename, 'r')
+    v_file = open (v_filename, 'w')
+    v_file.write (
+    '''//
+// This file is machine generated from %s
+// Do not edit by hand; your edits will be overwritten.
+//
+''' % (h_filename,))
+
+    pat = re.compile (r'^#define\s*(FR_\w*)\s*(\w*)(.*)$')
+    pat_bitno = re.compile (r'^#define\s*(bitno\w*)\s*(\w*)(.*)$')
+    pat_bm = re.compile (r'^#define\s*(bm\w*)\s*(\w*)(.*)$')
+    for line in h_file:
+        if re.match ('//|\s*$', line):  # comment or blank line
+            v_file.write (line)
+        mo = pat.search (line)
+        mo_bitno =pat_bitno.search (line)
+        mo_bm =pat_bm.search (line)
+        if mo:
+            v_file.write ('`define %-25s %d\'d%s%s\n' % (
+                mo.group (1), const_width, mo.group (2), mo.group (3)))
+        elif mo_bitno:
+            v_file.write ('`define %-25s %s%s\n' % (
+                mo_bitno.group (1), mo_bitno.group (2), mo_bitno.group (3)))
+        elif mo_bm:
+            v_file.write ('`define %-25s %s%s\n' % (
+                mo_bm.group (1), mo_bm.group (2), mo_bm.group (3)))
+    
+
+if __name__ == '__main__':
+    if len (sys.argv) != 3:
+        sys.stderr.write ('usage: %s file.h file.v\n' % (sys.argv[0]))
+        sys.exit (1)
+    generate_fpga_regs (sys.argv[1], sys.argv[2])
+