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_mul.c | 49 +++++++++++++++++++++++++++++ 1 file changed, 49 insertions(+) create mode 100644 libc/sysdeps/linux/sparc64/soft-fp/qp_mul.c (limited to 'libc/sysdeps/linux/sparc64/soft-fp/qp_mul.c') diff --git a/libc/sysdeps/linux/sparc64/soft-fp/qp_mul.c b/libc/sysdeps/linux/sparc64/soft-fp/qp_mul.c new file mode 100644 index 000000000..49a290af9 --- /dev/null +++ b/libc/sysdeps/linux/sparc64/soft-fp/qp_mul.c @@ -0,0 +1,49 @@ +/* Software floating-point emulation. + (*c) = (*a) * (*b) + 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 + . */ + +/* As QP_HANDLE_EXCEPTIONS reloads FPU control word anyway, + avoid doing it twice. */ +#define _FP_MUL_MEAT_RESET_FE do {} while (0) +#include "soft-fp.h" +#include "quad.h" + +void _Qp_mul(long double *c, const long double *a, const long double *b) +{ + FP_DECL_EX; + FP_DECL_Q(A); FP_DECL_Q(B); FP_DECL_Q(C); + + FP_INIT_ROUNDMODE; + FP_UNPACK_QP(A, a); + FP_UNPACK_QP(B, b); + FP_MUL_Q(C, A, B); + FP_PACK_QP(c, C); + QP_HANDLE_EXCEPTIONS( + _FPU_SETCW(_fcw); + __asm ( +" ldd [%1], %%f52\n" +" ldd [%1+8], %%f54\n" +" ldd [%2], %%f56\n" +" ldd [%2+8], %%f58\n" +" fmulq %%f52, %%f56, %%f60\n" +" std %%f60, [%0]\n" +" std %%f62, [%0+8]\n" +" " : : "r" (c), "r" (a), "r" (b) : QP_CLOBBER)); +} -- cgit v1.2.3