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[pf3gnuchains/gcc-fork.git] / gcc / machmode.def

diff --git a/gcc/machmode.def b/gcc/machmode.def
index fca7a6a..fbaea10 100644 (file)
--- a/gcc/machmode.def
+++ b/gcc/machmode.def
@@ -1,13 +1,13 @@
 /* This file contains the definitions and documentation for the
    machine modes used in the GNU compiler.
-   Copyright (C) 1987, 1992, 1994, 1997, 1998, 2000, 2003, 2004
-   Free Software Foundation, Inc.
+   Copyright (C) 1987, 1992, 1994, 1997, 1998, 2000, 2003, 2004, 2005,
+   2007  Free Software Foundation, Inc.
 
 This file is part of GCC.
 
 GCC 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, or (at your option) any later
+Software Foundation; either version 3, or (at your option) any later
 version.
 
 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
@@ -16,9 +16,8 @@ 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 GCC; see the file COPYING.  If not, write to the Free
-Software Foundation, 59 Temple Place - Suite 330, Boston, MA
-02111-1307, USA.  */
+along with GCC; see the file COPYING3.  If not see
+<http://www.gnu.org/licenses/>.  */
 
 
 /* This file defines all the MACHINE MODES used by GCC.
@@ -87,11 +86,33 @@ Software Foundation, 59 Temple Place - Suite 330, Boston, MA
        using floating point format FORMAT.
        All of the bits of its representation are significant.
 
+     DECIMAL FLOAT_MODE (MODE, BYTESIZE);
+       declares MODE to be of class DECIMAL_FLOAT and BYTESIZE bytes
+       wide.  All of the bits of its representation are significant.
+
      FRACTIONAL_FLOAT_MODE (MODE, PRECISION, BYTESIZE, FORMAT);
         declares MODE to be of class FLOAT, BYTESIZE bytes wide in
        storage, but with only PRECISION significant bits, using
        floating point format FORMAT.
 
+     FRACT_MODE (MODE, BYTESIZE, FBIT);
+       declares MODE to be of class FRACT and BYTESIZE bytes wide
+       with FBIT fractional bits.  There may be padding bits.
+
+     UFRACT_MODE (MODE, BYTESIZE, FBIT);
+       declares MODE to be of class UFRACT and BYTESIZE bytes wide
+       with FBIT fractional bits.  There may be padding bits.
+
+     ACCUM_MODE (MODE, BYTESIZE, IBIT, FBIT);
+       declares MODE to be of class ACCUM and BYTESIZE bytes wide
+       with IBIT integral bits and FBIT fractional bits.
+       There may be padding bits.
+
+     UACCUM_MODE (MODE, BYTESIZE, FBIT);
+       declares MODE to be of class UACCUM and BYTESIZE bytes wide
+       with IBIT integral bits and FBIT fractional bits.
+       There may be padding bits.
+
      RESET_FLOAT_FORMAT (MODE, FORMAT);
        changes the format of MODE, which must be class FLOAT,
        to FORMAT.  Use in an ARCH-modes.def to reset the format
@@ -129,10 +150,12 @@ Software Foundation, 59 Temple Place - Suite 330, Boston, MA
      ADJUST_BYTESIZE (MODE, EXPR);
      ADJUST_ALIGNMENT (MODE, EXPR);
      ADJUST_FLOAT_FORMAT (MODE, EXPR);
-        Arrange for the byte size, alignment, or floating point format
-       of MODE to be adjustable at run time.  EXPR will be executed
+     ADJUST_IBIT (MODE, EXPR);
+     ADJUST_FBIT (MODE, EXPR);
+       Arrange for the byte size, alignment, floating point format, ibit,
+       or fbit of MODE to be adjustable at run time.  EXPR will be executed
        once after processing all command line options, and should
-       evaluate to the desired byte size, alignment, or format.
+       evaluate to the desired byte size, alignment, format, ibit or fbit.
 
        Unlike a FORMAT argument, if you are adjusting a float format
        you must put an & in front of the name of each format structure.
@@ -177,6 +200,29 @@ FLOAT_MODE (DF, 8, ieee_double_format);
    FIXME define this only for targets that need it.  */
 CC_MODE (CC);
 
+/* Fixed-point modes.  */
+FRACT_MODE (QQ, 1, 7); /* s.7 */
+FRACT_MODE (HQ, 2, 15); /* s.15 */
+FRACT_MODE (SQ, 4, 31); /* s.31 */
+FRACT_MODE (DQ, 8, 63); /* s.63 */
+FRACT_MODE (TQ, 16, 127); /* s.127 */
+
+UFRACT_MODE (UQQ, 1, 8); /* .8 */
+UFRACT_MODE (UHQ, 2, 16); /* .16 */
+UFRACT_MODE (USQ, 4, 32); /* .32 */
+UFRACT_MODE (UDQ, 8, 64); /* .64 */
+UFRACT_MODE (UTQ, 16, 128); /* .128 */
+
+ACCUM_MODE (HA, 2, 8, 7); /* s8.7 */
+ACCUM_MODE (SA, 4, 16, 15); /* s16.15 */
+ACCUM_MODE (DA, 8, 32, 31); /* s32.31 */
+ACCUM_MODE (TA, 16, 64, 63); /* s64.63 */
+
+UACCUM_MODE (UHA, 2, 8, 8); /* 8.8 */
+UACCUM_MODE (USA, 4, 16, 16); /* 16.16 */
+UACCUM_MODE (UDA, 8, 32, 32); /* 32.32 */
+UACCUM_MODE (UTA, 16, 64, 64); /* 64.64 */
+
 /* Allow the target to specify additional modes of various kinds.  */
 #if HAVE_EXTRA_MODES
 # include EXTRA_MODES_FILE
@@ -186,6 +232,11 @@ CC_MODE (CC);
 COMPLEX_MODES (INT);
 COMPLEX_MODES (FLOAT);
 
+/* Decimal floating point modes.  */
+DECIMAL_FLOAT_MODE (SD, 4, decimal_single_format);
+DECIMAL_FLOAT_MODE (DD, 8, decimal_double_format);
+DECIMAL_FLOAT_MODE (TD, 16, decimal_quad_format);
+
 /* The symbol Pmode stands for one of the above machine modes (usually SImode).
    The tm.h file specifies which one.  It is not a distinct mode.  */