From 041cdc2769407c4d3869b218ad7ee7638e1c306e Mon Sep 17 00:00:00 2001 From: Waldemar Brodkorb Date: Wed, 24 May 2017 20:49:02 +0200 Subject: sparc64: add basic support No NPTL, no LDSO support. Bootup with Busybox Ash in Qemu working. Testuite shows only two failures, but mksh continue/break support doesn't work. --- libc/sysdeps/linux/sparc64/soft-fp/qp_dtoq.c | 45 ++++++++++++++++++++++++++++ 1 file changed, 45 insertions(+) create mode 100644 libc/sysdeps/linux/sparc64/soft-fp/qp_dtoq.c (limited to 'libc/sysdeps/linux/sparc64/soft-fp/qp_dtoq.c') diff --git a/libc/sysdeps/linux/sparc64/soft-fp/qp_dtoq.c b/libc/sysdeps/linux/sparc64/soft-fp/qp_dtoq.c new file mode 100644 index 000000000..5a5c43b13 --- /dev/null +++ b/libc/sysdeps/linux/sparc64/soft-fp/qp_dtoq.c @@ -0,0 +1,45 @@ +/* Software floating-point emulation. + (*c) = (long double)(a) + Copyright (C) 1997-2017 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Richard Henderson (rth@cygnus.com) and + Jakub Jelinek (jj@ultra.linux.cz). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, see + . */ + +#include "soft-fp.h" +#include "double.h" +#include "quad.h" + +void _Qp_dtoq(long double *c, const double a) +{ + FP_DECL_EX; + FP_DECL_D(A); + FP_DECL_Q(C); + + FP_INIT_ROUNDMODE; + FP_UNPACK_RAW_D(A, a); +#if (2 * _FP_W_TYPE_SIZE) < _FP_FRACBITS_Q + FP_EXTEND(Q,D,4,2,C,A); +#else + FP_EXTEND(Q,D,2,1,C,A); +#endif + FP_PACK_RAW_QP(c, C); + QP_HANDLE_EXCEPTIONS(__asm ( +" fdtoq %1, %%f60\n" +" std %%f60, [%0]\n" +" std %%f62, [%0+8]\n" +" " : : "r" (c), "e" (a) : QP_CLOBBER)); +} -- cgit v1.2.3