diff options
author | Jeff Johnston <jjohnstn@redhat.com> | 2007-02-15 02:18:25 +0300 |
---|---|---|
committer | Jeff Johnston <jjohnstn@redhat.com> | 2007-02-15 02:18:25 +0300 |
commit | 958e329d59aafd6eabb10884c6b86861197beb4f (patch) | |
tree | ab688a90decde1f813f8f22b27a5ca49a29e695f /newlib/libc/machine/spu | |
parent | 4f7e59f268bb7fce7f748f5f4358549ae39aa717 (diff) |
2007-02-14 Patrick Mansfield <patmans@us.ibm.com>
Add a floating point environment for SPU (cell):
* configure.host: add libm_machine_dir=spu.
* libm/machine/configure: Add spu.
* libm/machine/configure.in: regenerated with spu added.
* libc/machine/spu/include/fenv.h: New file.
* libc/machine/spu/sys/fenv.h: Ditto.
* libm/machine/spu/Makefile.am: Ditto.
* libm/machine/spu/Makefile.in: Ditto.
* libm/machine/spu/aclocal.m4: Ditto.
* libm/machine/spu/configure: Ditto.
* libm/machine/spu/configure.in: Ditto.
* libm/machine/spu/fe_dfl_env.c: Ditto.
* libm/machine/spu/feclearexcept.c: Ditto.
* libm/machine/spu/fegetenv.c: Ditto.
* libm/machine/spu/fegetexceptflag.c: Ditto.
* libm/machine/spu/fegetround.c: Ditto.
* libm/machine/spu/feholdexcept.c: Ditto.
* libm/machine/spu/feraiseexcept.c: Ditto.
* libm/machine/spu/fesetenv.c: Ditto.
* libm/machine/spu/fesetexceptflag.c: Ditto.
* libm/machine/spu/fesetround.c: Ditto.
* libm/machine/spu/fetestexcept.c: Ditto.
* libm/machine/spu/feupdateenv.c: Ditto.
* libm/machine/spu/headers/feclearexcept.h: Ditto.
* libm/machine/spu/headers/fefpscr.h: Ditto.
* libm/machine/spu/headers/fegetenv.h: Ditto.
* libm/machine/spu/headers/fegetexceptflag.h: Ditto.
* libm/machine/spu/headers/fegetround.h: Ditto.
* libm/machine/spu/headers/feholdexcept.h: Ditto.
* libm/machine/spu/headers/feraiseexcept.h: Ditto.
* libm/machine/spu/headers/fesetenv.h: Ditto.
* libm/machine/spu/headers/fesetexceptflag.h: Ditto.
* libm/machine/spu/headers/fesetround.h: Ditto.
* libm/machine/spu/headers/fetestexcept.h: Ditto.
* libm/machine/spu/headers/feupdateenv.h: Ditto.
Diffstat (limited to 'newlib/libc/machine/spu')
-rw-r--r-- | newlib/libc/machine/spu/include/fenv.h | 64 | ||||
-rw-r--r-- | newlib/libc/machine/spu/sys/fenv.h | 144 |
2 files changed, 208 insertions, 0 deletions
diff --git a/newlib/libc/machine/spu/include/fenv.h b/newlib/libc/machine/spu/include/fenv.h new file mode 100644 index 000000000..6252c99aa --- /dev/null +++ b/newlib/libc/machine/spu/include/fenv.h @@ -0,0 +1,64 @@ +/* + (C) Copyright 2006, 2007 + International Business Machines Corporation, + Sony Computer Entertainment, Incorporated, + Toshiba Corporation, + + All rights reserved. + + Redistribution and use in source and binary forms, with or without + modification, are permitted provided that the following conditions are met: + + * Redistributions of source code must retain the above copyright notice, + this list of conditions and the following disclaimer. + * Redistributions in binary form must reproduce the above copyright + notice, this list of conditions and the following disclaimer in the + documentation and/or other materials provided with the distribution. + * Neither the names of the copyright holders nor the names of their + contributors may be used to endorse or promote products derived from this + software without specific prior written permission. + + THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" + AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE + LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + POSSIBILITY OF SUCH DAMAGE. +*/ + +#ifndef _FENV_H +#define _FENV_H + +#include <sys/fenv.h> + +#ifdef __cplusplus +extern "C" { +#endif + +/* Exception */ +void feclearexcept(int excepts); +void fegetexceptflag(fexcept_t *flagp, int excepts); +void feraiseexcept(int excepts); +void fesetexceptflag(const fexcept_t *flagp, int excepts); +int fetestexcept(int excepts); + +/* Rounding mode */ +int fegetround(void); +int fesetround(int rounding_mode); + +/* Float environment */ +void fegetenv(fenv_t *envp); +int feholdexcept(fenv_t *envp); +void fesetenv(const fenv_t *envp); +void feupdateenv(const fenv_t *envp); + +#ifdef __cplusplus +} +#endif + +#endif diff --git a/newlib/libc/machine/spu/sys/fenv.h b/newlib/libc/machine/spu/sys/fenv.h new file mode 100644 index 000000000..e74fa96c4 --- /dev/null +++ b/newlib/libc/machine/spu/sys/fenv.h @@ -0,0 +1,144 @@ +/* + (C) Copyright 2006, 2007 + International Business Machines Corporation, + Sony Computer Entertainment, Incorporated, + Toshiba Corporation, + + All rights reserved. + + Redistribution and use in source and binary forms, with or without + modification, are permitted provided that the following conditions are met: + + * Redistributions of source code must retain the above copyright notice, + this list of conditions and the following disclaimer. + * Redistributions in binary form must reproduce the above copyright + notice, this list of conditions and the following disclaimer in the + documentation and/or other materials provided with the distribution. + * Neither the names of the copyright holders nor the names of their + contributors may be used to endorse or promote products derived from this + software without specific prior written permission. + + THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" + AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE + LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + POSSIBILITY OF SUCH DAMAGE. +*/ +#ifndef _SYS_FENV_H +#define _SYS_FENV_H + +/* + * The exception macros are such that the functions to pack/unpack them + * will map a 32 bit fenv_t from/to the 128 bit fpscr. + * + * Suffixes: + * _SNGL: single precision + * _DBL: double precision + * _N: element number, no suffix for element 0. + */ + +#define FE_OVERFLOW_SNGL 0x08000000 +#define FE_UNDERFLOW_SNGL 0x04000000 +#define FE_DIFF_SNGL 0x02000000 +#define FE_DIVBYZERO_SNGL 0x00000040 + +#define FE_OVERFLOW_SNGL_1 0x00040000 +#define FE_UNDERFLOW_SNGL_1 0x00020000 +#define FE_DIFF_SNGL_1 0x00010000 +#define FE_DIVBYZERO_SNGL_1 0x00000020 + +#define FE_OVERFLOW_SNGL_2 0x00000200 +#define FE_UNDERFLOW_SNGL_2 0x00000100 +#define FE_DIFF_SNGL_2 0x00000080 +#define FE_DIVBYZERO_SNGL_2 0x00000010 + +#define FE_OVERFLOW_SNGL_3 0x00000004 +#define FE_UNDERFLOW_SNGL_3 0x00000002 +#define FE_DIFF_SNGL_3 0x00000001 +#define FE_DIVBYZERO_SNGL_3 0x00000008 + +#define FE_ALL_EXCEPT_SNGL (FE_OVERFLOW_SNGL | FE_UNDERFLOW_SNGL \ + | FE_DIFF_SNGL | FE_DIVBYZERO_SNGL) +#define FE_ALL_EXCEPT_SNGL_1 (FE_OVERFLOW_SNGL_1 | FE_UNDERFLOW_SNGL_1 \ + | FE_DIFF_SNGL_1 | FE_DIVBYZERO_SNGL_1) +#define FE_ALL_EXCEPT_SNGL_2 (FE_OVERFLOW_SNGL_2 | FE_UNDERFLOW_SNGL_2 \ + | FE_DIFF_SNGL_2 | FE_DIVBYZERO_SNGL_2) +#define FE_ALL_EXCEPT_SNGL_3 (FE_OVERFLOW_SNGL_3 | FE_UNDERFLOW_SNGL_3 \ + | FE_DIFF_SNGL_3 | FE_DIVBYZERO_SNGL_3) + +#define FE_OVERFLOW_DBL 0x01000000 +#define FE_UNDERFLOW_DBL 0x00800000 +#define FE_INEXACT_DBL 0x00400000 +#define FE_INVALID_DBL 0x00200000 +#define FE_NC_NAN_DBL 0x00100000 +#define FE_NC_DENORM_DBL 0x00080000 + +#define FE_OVERFLOW_DBL_1 0x00008000 +#define FE_UNDERFLOW_DBL_1 0x00004000 +#define FE_INEXACT_DBL_1 0x00002000 +#define FE_INVALID_DBL_1 0x00001000 +#define FE_NC_NAN_DBL_1 0x00000800 +#define FE_NC_DENORM_DBL_1 0x00000400 + +#define FE_ALL_EXCEPT_DBL (FE_OVERFLOW_DBL | FE_UNDERFLOW_DBL | \ + FE_INEXACT_DBL | FE_INVALID_DBL | \ + FE_NC_NAN_DBL | FE_NC_DENORM_DBL) +#define FE_ALL_EXCEPT_DBL_1 (FE_OVERFLOW_DBL_1 | FE_UNDERFLOW_DBL_1 | \ + FE_INEXACT_DBL_1 | FE_INVALID_DBL_1 | \ + FE_NC_NAN_DBL_1 | FE_NC_DENORM_DBL_1) + +#define FE_ALL_EXCEPT (FE_ALL_EXCEPT_SNGL | FE_ALL_EXCEPT_SNGL_1 | \ + FE_ALL_EXCEPT_SNGL_2 | FE_ALL_EXCEPT_SNGL_3 | \ + FE_ALL_EXCEPT_DBL | FE_ALL_EXCEPT_DBL_1) + +/* + * Warning: some of these are single and some double precision only, + * because of the hardware implementation. + */ +#define FE_DIVBYZERO (FE_DIVBYZERO_SNGL | FE_DIVBYZERO_SNGL_1 | \ + FE_DIVBYZERO_SNGL_2 | FE_DIVBYZERO_SNGL_3) +#define FE_INEXACT (FE_INEXACT_DBL | FE_INEXACT_DBL_1) +#define FE_INVALID (FE_INVALID_DBL | FE_INVALID_DBL_1) +#define FE_NC_NAN (FE_NC_NAN_DBL | FE_NC_NAN_DBL_1) +#define FE_NC_DENORM (FE_NC_DENORM_DBL | FE_NC_DENORM_DBL_1) + +/* + * __FE_ROUND_ELE_n values are set so that they can easily be used as a + * mask when setting the fpscr. These tell us whether we are setting the + * round mode for a specific element (double precision floating point + * only, so there are only two elements). + */ +#define __FE_ROUND_ELE_0 0xc00 +#define __FE_ROUND_ELE_1 0x300 + +/* + * The following map directly to round values in the fpscr. + */ +#define __FE_SPU_TONEAREST 0 +#define __FE_SPU_TOWARDZERO 1 +#define __FE_SPU_UPWARD 2 +#define __FE_SPU_DOWNWARD 3 + +#define FE_TONEAREST (__FE_ROUND_ELE_0 | (__FE_SPU_TONEAREST << 2)) +#define FE_TOWARDZERO (__FE_ROUND_ELE_0 | (__FE_SPU_TOWARDZERO << 2)) +#define FE_UPWARD (__FE_ROUND_ELE_0 | (__FE_SPU_UPWARD << 2)) +#define FE_DOWNWARD (__FE_ROUND_ELE_0 | (__FE_SPU_DOWNWARD << 2)) + +#define FE_TONEAREST_1 (__FE_ROUND_ELE_1 | __FE_SPU_TONEAREST) +#define FE_TOWARDZERO_1 (__FE_ROUND_ELE_1 | __FE_SPU_TOWARDZERO) +#define FE_UPWARD_1 (__FE_ROUND_ELE_1 | __FE_SPU_UPWARD) +#define FE_DOWNWARD_1 (__FE_ROUND_ELE_1 | __FE_SPU_DOWNWARD) + +typedef unsigned int fexcept_t; +typedef unsigned int fenv_t; + +extern const fenv_t __fe_dfl_env; +#define FE_DFL_ENV (&__fe_dfl_env) + +#endif /* fenv.h */ |