L2C_CTL
const bool enabled_p = arml2cc_read_4(sc, L2C_CTL) != 0;
arml2cc_read_4(sc, L2C_CTL) ? "enabled" : "disabled");
arml2cc_read_4(sc, L2C_CTL) ? "enabled" : "disabled");
arml2cc_write_4(sc, L2C_CTL, 0); // turn it off
arml2cc_write_4(sc, L2C_CTL, 1); // turn it on