1 files changed, 48 insertions, 0 deletions
diff --git a/firmware/zpu/bin/bin_to_ram_macro_init.py b/firmware/zpu/bin/bin_to_ram_macro_init.py
new file mode 100755
index 000000000..65cf2dbdf
--- /dev/null
+++ b/firmware/zpu/bin/bin_to_ram_macro_init.py
@@ -0,0 +1,48 @@
+#!/usr/bin/env python
+
+import struct
+import sys
+
+def do_8_words(ofile, which_ram, row, words):
+    ofile.write("defparam bootram.RAM%d.INIT_%02X=256'h" % (which_ram, row))
+    ofile.write("%08x_%08x_%08x_%08x_%08x_%08x_%08x_%08x;\n" % (
+        words[7], words[6], words[5], words[4], words[3], words[2], words[1], words[0]))
+
+def bin_to_ram_macro_init(bin_input_file, ram_init_output_file):
+    ifile = open(bin_input_file, 'rb')
+    ofile = open(ram_init_output_file, 'w')
+    idata = ifile.read()
+    fmt = ">%dI" % ((len(idata) / 4),)
+    words = struct.unpack(fmt, idata)
+
+    # pad to a multiple of 8 words
+    r = len(words) % 8
+    if r != 0:
+        words += (8 - r) * (0,)
+
+    if len(words) > 2048:
+        sys.stderr.write("bin_to_macro_init: error: input file %s is > 8KiB\n" % (bin_input_file,))
+        sys.exit(1)
+
+    # first 2KB
+    for i in range(0, min(512, len(words)), 8):
+        do_8_words(ofile, 0, i/8, words[i:i+8])
+
+    # second 2KB
+    for i in range(512, min(1024, len(words)), 8):
+        do_8_words(ofile, 1, (i/8) % 64, words[i:i+8])
+
+		# third 2KB
+    for i in range(1024, min(1536, len(words)), 8):
+        do_8_words(ofile, 2, (i/8) % 64, words[i:i+8])
+
+		# last 2KB
+    for i in range(1536, len(words), 8):
+        do_8_words(ofile, 3, (i/8) % 64, words[i:i+8])
+
+if __name__ == '__main__':
+    if len(sys.argv) != 3:
+        sys.stderr.write("usage: bin_to_ram_macro_init bin_input_file ram_init_output_file\n")
+        sys.exit(1)
+    
+    bin_to_ram_macro_init(sys.argv[1], sys.argv[2])