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

• z machdep/i386/fp_emul/fp_arith.s:103
• zero machdep/i386/fp_emul/fp_arith.s:102
• zerror_flip_sign_op2 machdep/i386/fp_emul/fp_trans.s:196
• zerror_flip_sign_y_inf machdep/i386/fp_emul/fp_trans.s:195
• z_masked machdep/i386/fp_emul/fp_status.s:247