SIB_B             518 third_party/mach_override/libudis86/decode.c       op->base  = UD_R_RAX + (SIB_B(inp_curr(u)) | (REX_B(u->pfx_rex) << 3));
SIB_B             556 third_party/mach_override/libudis86/decode.c       op->base  = UD_R_EAX + (SIB_B(inp_curr(u)) | (REX_B(u->pfx_rex) << 3));