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git.proxmox.com Git - mirror_ubuntu-eoan-kernel.git/blob - arch/mips/math-emu/sp_simple.c
1 // SPDX-License-Identifier: GPL-2.0-only
2 /* IEEE754 floating point arithmetic
6 * MIPS floating point support
7 * Copyright (C) 1994-2000 Algorithmics Ltd.
10 #include "ieee754sp.h"
12 union ieee754sp
ieee754sp_neg(union ieee754sp x
)
16 if (ieee754_csr
.abs2008
) {
18 SPSIGN(y
) = !SPSIGN(x
);
22 oldrm
= ieee754_csr
.rm
;
23 ieee754_csr
.rm
= FPU_CSR_RD
;
24 y
= ieee754sp_sub(ieee754sp_zero(0), x
);
25 ieee754_csr
.rm
= oldrm
;
30 union ieee754sp
ieee754sp_abs(union ieee754sp x
)
34 if (ieee754_csr
.abs2008
) {
40 oldrm
= ieee754_csr
.rm
;
41 ieee754_csr
.rm
= FPU_CSR_RD
;
43 y
= ieee754sp_sub(ieee754sp_zero(0), x
);
45 y
= ieee754sp_add(ieee754sp_zero(0), x
);
46 ieee754_csr
.rm
= oldrm
;