ASM_FMT_M44
op = ASM_OP_SUM, fmt = ASM_FMT_M44;
op = ASM_OP_RUM, fmt = ASM_FMT_M44;
op = ASM_OP_SSM, fmt = ASM_FMT_M44;
op = ASM_OP_RSM, fmt = ASM_FMT_M44;
case ASM_FMT_M44: