Symbol: KINST_REX_B
sys/cddl/dev/kinst/amd64/kinst_isa.c
431
(KINST_REX_B(rex) << 3);
sys/cddl/dev/kinst/amd64/kinst_isa.c
437
kpmd->reg1 = rm | (KINST_REX_B(rex) << 3);