BGE_SEND_RING_RCB
vrcb = BGE_MEMWIN_START + BGE_SEND_RING_RCB;
vrcb = BGE_MEMWIN_START + BGE_SEND_RING_RCB;
vrcb = BGE_MEMWIN_START + BGE_SEND_RING_RCB;
vrcb = BGE_MEMWIN_START + BGE_SEND_RING_RCB;