Editing Battle RNG (section)

== Seeding ==
Battle RNG is seeded by the return value of a single call to [[System RNG]] which is used to populate the Index Array as follows:<syntaxhighlight lang="c" line="1">
void BattleSRand(int seed)

{
  int i;
  
  for (i = 0; i < 8; i = i + 1) {
    BattleRandArr[i] = (byte)seed;
    seed = seed >> 1;
  }
  BattleRandIdx = 0;
  return;
}
</syntaxhighlight>

=== Seeding Differences between PSX and PC ===
Both PC/HD and PSX use a 15-bit value to seed Battle RNG, but this value comes from different sources between the versions. 

On PC/HD, a call to System RNG is made for the value that will be used. This leads to the possibility of [[System Clock Manipulation]].

On PSX, the lowest 15 bits of the global frame counter are instead used.