Nasm error types

./asm/assemble.c . Nasm just have these error, not many.

            switch (m) {
            case MERR_OPSIZEMISSING:
                nasm_error(ERR_NONFATAL, "operation size not specified");
                break;
            case MERR_OPSIZEMISMATCH:
                nasm_error(ERR_NONFATAL, "mismatch in operand sizes");
                break;
            case MERR_BRNOTHERE:
                nasm_error(ERR_NONFATAL,
                           "broadcast not permitted on this operand");
                break;
            case MERR_BRNUMMISMATCH:
                nasm_error(ERR_NONFATAL,
                           "mismatch in the number of broadcasting elements");
                break;
            case MERR_MASKNOTHERE:
                nasm_error(ERR_NONFATAL,
                           "mask not permitted on this operand");
                break;
            case MERR_DECONOTHERE:
                nasm_error(ERR_NONFATAL, "unsupported mode decorator for instruction");
                break;
            case MERR_BADCPU:
                nasm_error(ERR_NONFATAL, "no instruction for this cpu level");
                break;
            case MERR_BADMODE:
                nasm_error(ERR_NONFATAL, "instruction not supported in %d-bit mode",
                           bits);
                break;
            case MERR_ENCMISMATCH:
                nasm_error(ERR_NONFATAL, "specific encoding scheme not available");
                break;
            case MERR_BADBND:
                nasm_error(ERR_NONFATAL, "bnd prefix is not allowed");
                break;
            case MERR_BADREPNE:
                nasm_error(ERR_NONFATAL, "%s prefix is not allowed",
                           (has_prefix(instruction, PPS_REP, P_REPNE) ?
                            "repne" : "repnz"));
                break;
            case MERR_REGSETSIZE:
                nasm_error(ERR_NONFATAL, "invalid register set size");
                break;
            case MERR_REGSET:
                nasm_error(ERR_NONFATAL, "register set not valid for operand");
                break;
            default:
                nasm_error(ERR_NONFATAL,
                           "invalid combination of opcode and operands");