dox/dmbdump.d

   1 #!/usr/bin/env rdmd
   2 import std.stdio;
   3
   4 import iv.stream;
   5
   6
   7 void dumpDMB (File fl) {
   8   auto sign = fl.readNum!uint();
   9   if (sign != 0x30424D44u && sign != 0x31424D44u) throw new Exception("invalid signature");
  10   bool v1 = (((sign>>24)&0xff) == 0x31);
  11   auto pc = fl.readNum!ushort();
  12   if (pc) writefln("run from: #%04x (%s)", pc, pc);
  13   if (v1) {
  14     auto clr = fl.readNum!ushort();
  15     if (clr) writefln("CLEAR #%04x (%s)", clr, clr);
  16   }
  17   auto count = fl.readNum!ushort();
  18   while (count--) {
  19     auto size = fl.readNum!ushort();
  20     auto addr = fl.readNum!ushort();
  21     if (addr != 0) {
  22       writefln("#%04x %s  (%s)", addr, size, addr);
  23     } else {
  24       addr = fl.readNum!ushort();
  25       auto page = fl.readNum!ubyte();
  26       writefln("%02s #%04x %s  (%s)", page, addr, size, addr);
  27     }
  28     fl.seek(size, SEEK_CUR);
  29   }
  30 }
  31
  32
  33 void main (string[] args) {
  34   foreach (auto fn; args[1..$]) {
  35     writeln("=== ", fn, " ===");
  36     dumpDMB(File(fn));
  37   }
  38 }