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| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 10:05:51 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 10:05:51 +0000 |
| commit | 5d1646d90e1f2cceb9f0828f4b28318cd0ec7744 (patch) | |
| tree | a94efe259b9009378be6d90eb30d2b019d95c194 /arch/nds32/math-emu/fsubs.c | |
| parent | Initial commit. (diff) | |
| download | linux-5d1646d90e1f2cceb9f0828f4b28318cd0ec7744.tar.xz linux-5d1646d90e1f2cceb9f0828f4b28318cd0ec7744.zip | |
Adding upstream version 5.10.209.upstream/5.10.209upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'arch/nds32/math-emu/fsubs.c')
| -rw-r--r-- | arch/nds32/math-emu/fsubs.c | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/arch/nds32/math-emu/fsubs.c b/arch/nds32/math-emu/fsubs.c new file mode 100644 index 000000000..61ddd9708 --- /dev/null +++ b/arch/nds32/math-emu/fsubs.c @@ -0,0 +1,27 @@ +// SPDX-License-Identifier: GPL-2.0 +// Copyright (C) 2005-2018 Andes Technology Corporation +#include <linux/uaccess.h> + +#include <asm/sfp-machine.h> +#include <math-emu/soft-fp.h> +#include <math-emu/single.h> +void fsubs(void *ft, void *fa, void *fb) +{ + + FP_DECL_S(A); + FP_DECL_S(B); + FP_DECL_S(R); + FP_DECL_EX; + + FP_UNPACK_SP(A, fa); + FP_UNPACK_SP(B, fb); + + if (B_c != FP_CLS_NAN) + B_s ^= 1; + + FP_ADD_S(R, A, B); + + FP_PACK_SP(ft, R); + + __FPU_FPCSR |= FP_CUR_EXCEPTIONS; +} |