GTIDMAC_I_BITS
if (i > 0 && ((i * GTIDMAC_I_BITS) & 31 /*bit*/) == 0) {
select = sel - chan * GTIDMAC_I_BITS;
if (select >= 0 && select < GTIDMAC_I_BITS) {
cause >>= GTIDMAC_I_BITS;
#define GTIDMAC_I(c, b) ((b) << (GTIDMAC_I_BITS * ((c) & 0x3)))