libs/sceHelper.cpp:GetSetBaseAddrNid

static u32 GetSetBaseAddrNid(u32 HASH,u32 FW500,u32 FW620,u32 FW635,u32 FW660)
{
  u32 devkit = sceKernelDevkitVersion();
  if(devkit<PSP_FIRMWARE(0x500))return HASH;
  if(devkit<PSP_FIRMWARE(0x620))return FW500; //should be 0x555?
  if(devkit<PSP_FIRMWARE(0x630))return FW620;
  if(devkit<PSP_FIRMWARE(0x660))return FW635;
  return FW660;
}