SPCPS_RD
rp->nb.fat_fbd_regs.spcps = SPCPS_RD(branch);
rp->nb.nf_fbd_regs.spcps = SPCPS_RD(branch);
rp->nb.nf_mem_regs.spcps = SPCPS_RD(branch);
spcps = SPCPS_RD(i);
spcps = SPCPS_RD(i);