Added bin2mif utility

git-svn-id: http://www.cdkersey.com/harp/harptool@124 0246edb2-e076-4747-b392-db732a341fa2

util/bin2mif.cpp

@@ -0,0 +1,63 @@
+// bin2mif -- Convert binary file to Memory Initialization File used by some
+//            FPGA toolchains.
+
+#include <iostream>
+#include <iomanip>
+#include <fstream>
+#include <cstdlib>
+#include <stack>
+
+int main(int argc, char** argv) {
+  using namespace std;
+
+  if (argc != 5) {
+    cerr << "Usage:\n  " << argv[0] << ' ' << "<word size(bytes)>"
+         << " <mem size(bytes)> <in file> <out file>\n";;
+    return 1;
+  }
+
+  ifstream in(argv[3]);
+  ofstream out(argv[4]);
+
+  if (!in) {
+    cerr << "Failed to open input file \"" << argv[3] << "\"\n";
+    return 1;
+  }
+
+  if (!out) {
+    cerr << "Failed to open output file \"" << argv[4] << "\"\n";
+    return 1;
+  }
+
+  unsigned word(atol(argv[1])), mem_sz(atol(argv[2])/word);
+
+  out << "DEPTH = " << mem_sz << ";\n"
+      << "WIDTH = " << word*8 << ";\n"
+      << "ADDRESS_RADIX = HEX;\n"
+      << "DATA_RADIX = HEX;\n"
+      << "CONTENT\n"
+      << "BEGIN\n";
+
+  // HARP is little endian, so no matter what the endianness of the machine on
+  // which this utility runs, this swapping of the byte order when constructing
+  // hex values is necessary.
+  for (unsigned j = 0; j < mem_sz; ++j) {
+    stack<unsigned char> bytes;
+
+    out << setw(4) << setfill('0') << hex << j << " : ";
+    for (unsigned i = 0; i < word; ++i) {
+      if (!in.eof()) bytes.push(in.get());
+      else           bytes.push(0);
+    }
+    for (unsigned i = 0; i < word; ++i) {
+      out << hex << setw(2) << setfill('0') << unsigned(bytes.top());
+      bytes.pop();
+    }
+    out << ";\n";
+    if (in.eof()) break;
+  }
+
+  out << "END;";
+
+  return 0;
+}