ASM_FMT_M13
op = ASM_OP_LFETCH_, fmt = ASM_FMT_M13;
op = ASM_OP_LFETCH_EXCL, fmt = ASM_FMT_M13;
op = ASM_OP_LFETCH_FAULT, fmt = ASM_FMT_M13;
fmt = ASM_FMT_M13;
case ASM_FMT_M13: