Variables starting with `n' in machdep/i386/fp_emul

• negative machdep/i386/fp_emul/fp_arith.s:163
• neg_second_operand machdep/i386/fp_emul/fp_arith.s:117
• norm_denorm machdep/i386/fp_emul/fp_reg.s:83
• not machdep/i386/fp_emul/fp_status.s:222