gnu1987/gnu1988/gcc-0.9/machmode.def

/* This file contains the definitions and documentation for the
   machine modes used in the the GNU compiler.
   Copyright (C) 1987 Free Software Foundation, Inc.

This file is part of GNU CC.

GNU CC is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY.  No author or distributor
accepts responsibility to anyone for the consequences of using it
or for whether it serves any particular purpose or works at all,
unless he says so in writing.  Refer to the GNU CC General Public
License for full details.

Everyone is granted permission to copy, modify and redistribute
GNU CC, but only under the conditions described in the
GNU CC General Public License.   A copy of this license is
supposed to have been given to you along with GNU CC so you
can know your rights and responsibilities.  It should be in a
file named COPYING.  Among other things, the copyright notice
and this notice must be preserved on all copies.  */


/* The first argument is the internal name of the machine mode
   used in the C source.
   By convention these are in UPPER_CASE, except for the lower case "mode".

   The second argument  is the name of the machine mode in the
   external ASCII format read by for both the rtl and tree.
   By convention these names in UPPER_CASE.

   Third argument states the kind of representation:
   0 - none
   1 - unsigned int
   2 - signed int
   3 - float
   4+n - complex whatever
   8+n - bit field 

   16 and up - pointer
   16 is normal pointer
   17 is special bit-field pointer
   18 is relative pointer.

   Fourth argument is the size of the object, in bytes.
   It is zero when the size is meaningless or not determined.

   Fifth arg is size of subunits of the object, in bytes.
   It is same as 4 except for complexes and EPmode,
   since they are really made of two equal size subunits.  */

DEF_MACHMODE (VOIDmode, "VOID", 0, 0, 0)
DEF_MACHMODE (QImode, "QI", 2, 1, 1)		/* signed types */
DEF_MACHMODE (HImode, "HI", 2, 2, 2)
DEF_MACHMODE (SImode, "SI", 2, 4, 4)
DEF_MACHMODE (DImode, "DI", 2, 8, 8)
DEF_MACHMODE (TImode, "TI", 2, 16, 16)
DEF_MACHMODE (QFmode, "QF", 3, 1, 1)
DEF_MACHMODE (HFmode, "HF", 3, 2, 2)		/* floating types */
DEF_MACHMODE (SFmode, "SF", 3, 4, 4)
DEF_MACHMODE (DFmode, "DF", 3, 8, 8)
DEF_MACHMODE (TFmode, "TF", 3, 16, 16)
DEF_MACHMODE (CQImode, "CQI", 6, 2, 1)
DEF_MACHMODE (CHImode, "CHI", 6, 4, 2)		/* complex signed types */
DEF_MACHMODE (CSImode, "CSI", 6, 8, 4)
DEF_MACHMODE (CDImode, "CDI", 6, 16, 8)
DEF_MACHMODE (CTImode, "CTI", 6, 32, 16)
DEF_MACHMODE (CQFmode, "CQF", 7, 2, 1)
DEF_MACHMODE (CHFmode, "CHF", 7, 4, 2)		/* complex floating types */
DEF_MACHMODE (CSFmode, "CSF", 7, 8, 4)
DEF_MACHMODE (CDFmode, "CDF", 7, 16, 8)
DEF_MACHMODE (CTFmode, "CTF", 7, 32, 16)

DEF_MACHMODE (BWmode, "BW", 8, 0, 0)	/* left-aligned bit field */
DEF_MACHMODE (BUmode, "BU", 9, 0, 0)	/* unsigned bit field */
DEF_MACHMODE (BImode, "BI", 10, 0, 0)	/* signed bit field */

DEF_MACHMODE (BLKmode, "BLK", 0, 0, 0)	/* Structure or large object.  */

DEF_MACHMODE (EPmode, "EP", 16, 8, 4)	/* Function variable in algol */
					/* Includes a saved static chain */

/* Note that Pmode is not a separate mode.
   It is defined as a macro the turns into one of the above
   (probably SImode).  */

/*
Local variables:
mode:c
version-control: t
End:
*/