NV_PRAMDAC_FP_DEBUG_1
regp->fp_debug_1 = NVReadRAMDAC(dev, head, NV_PRAMDAC_FP_DEBUG_1);
NVWriteRAMDAC(dev, head, NV_PRAMDAC_FP_DEBUG_1, regp->fp_debug_1);
NVWriteRAMDAC(dev, head, NV_PRAMDAC_FP_DEBUG_1, regs->fp_debug_1);