ASM_FMT_M19
op = ASM_OP_GETF_SIG, fmt = ASM_FMT_M19;
op = ASM_OP_GETF_EXP, fmt = ASM_FMT_M19;
op = ASM_OP_GETF_S, fmt = ASM_FMT_M19;
op = ASM_OP_GETF_D, fmt = ASM_FMT_M19;
case ASM_FMT_M19: