bridgeRegisterLocation = VM_Address.fromInt(VM_Magic.getMemoryWord(framePtr));
bridgeRegisterLocation = VM_Magic.getMemoryAddress(framePtr);
  public void reset() {    mapOffset = 0;    if (bridgeTarget != null) {      // point to first saved gpr      bridgeParameterMappingRequired = true;      bridgeParameterIndex   = bridgeParameterInitialIndex;      bridgeRegisterIndex    = FIRST_VOLATILE_GPR;      bridgeRegisterLocation = VM_Address.fromInt(VM_Magic.getMemoryWord(framePtr));      bridgeRegisterLocation = bridgeRegisterLocation.sub(8 * (LAST_NONVOLATILE_FPR - FIRST_VOLATILE_FPR + 1) +							  4 * (LAST_NONVOLATILE_GPR - FIRST_VOLATILE_GPR + 1));    }  }