R_0028F8_MC_INDEX
WREG32(R_0028F8_MC_INDEX, S_0028F8_MC_IND_ADDR(reg));
WREG32(R_0028F8_MC_INDEX, ~C_0028F8_MC_IND_ADDR);
WREG32(R_0028F8_MC_INDEX, S_0028F8_MC_IND_ADDR(reg) |
WREG32(R_0028F8_MC_INDEX, 0x7F);