| // SPDX-License-Identifier: GPL-2.0-only |
| /* IEEE754 floating point arithmetic |
| * double precision: common utilities |
| * MIPS floating point support |
| * Copyright (C) 1994-2000 Algorithmics Ltd. |
| static inline union ieee754dp ieee754dp_nan_fsp(int xs, u64 xm) |
| return builddp(xs, DP_EMAX + 1 + DP_EBIAS, |
| xm << (DP_FBITS - SP_FBITS)); |
| union ieee754dp ieee754dp_fsp(union ieee754sp x) |
| return ieee754dp_nanxcpt(ieee754dp_nan_fsp(xs, xm)); |
| return ieee754dp_nan_fsp(xs, xm); |
| return ieee754dp_inf(xs); |
| return ieee754dp_zero(xs); |
| case IEEE754_CLASS_DNORM: |
| while ((xm >> SP_FBITS) == 0) { |
| * Can't possibly overflow,underflow, or need rounding |
| /* drop the hidden bit */ |
| return builddp(xs, xe + DP_EBIAS, |
| (u64) xm << (DP_FBITS - SP_FBITS)); |