macemu/BasiliskII/src/uae_cpu/fpu/rounding.cpp
2008-01-01 09:40:36 +00:00

65 lines
2.0 KiB
C++

/*
* fpu/rounding.cpp - system-dependant FPU rounding mode and precision
*
* Basilisk II (C) 1997-2008 Christian Bauer
*
* MC68881/68040 fpu emulation
*
* Original UAE FPU, copyright 1996 Herman ten Brugge
* Rewrite for x86, copyright 1999-2000 Lauri Pesonen
* New framework, copyright 2000 Gwenole Beauchesne
* Adapted for JIT compilation (c) Bernd Meyer, 2000
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#undef PRIVATE
#define PRIVATE /**/
#undef PUBLIC
#define PUBLIC /**/
#undef FFPU
#define FFPU /**/
#undef FPU
#define FPU fpu.
/* -------------------------------------------------------------------------- */
/* --- Native X86 Rounding Mode --- */
/* -------------------------------------------------------------------------- */
#ifdef FPU_USE_X86_ROUNDING_MODE
const uae_u32 FFPU x86_control_word_rm_mac2host[] = {
CW_RC_NEAR,
CW_RC_ZERO,
CW_RC_DOWN,
CW_RC_UP
};
#endif
/* -------------------------------------------------------------------------- */
/* --- Native X86 Rounding Precision --- */
/* -------------------------------------------------------------------------- */
#ifdef FPU_USE_X86_ROUNDING_PRECISION
const uae_u32 FFPU x86_control_word_rp_mac2host[] = {
CW_PC_EXTENDED,
CW_PC_SINGLE,
CW_PC_DOUBLE,
CW_PC_RESERVED
};
#endif