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Sun Oct 25 23:15:47 1998 UTC
(23 years, 1 month ago) by pazsan
CVS tags: HEAD
SHARC-porting aids that benefit generally:
Cross: Added non-byte-addressed architectures as possible target (not hosts
Rest: all types are now Gforth-private types (so you could define as Char
whatever you where like). Some messing around with inabilities of Analog
Devices port of GCC.
This is a generic file for 32-bit machines with IEEE FP arithmetic (no VMS).
It only supports indirect threading.
Copyright (C) 1995 Free Software Foundation, Inc.
This file is part of Gforth.
Gforth 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., 675 Mass Ave, Cambridge, MA 02139, USA.
/* define SYSCALL */
/* keep top of FP stack in register. Since most processors have FP
registers and they are hardly used in gforth, this is usually a
good idea. The 88100 has no separate FP regs, but many general
purpose regs, so it should be ok */
/* I don't do the same for the data stack (i.e. USE_TOS), since this
loses on processors with few registers. USE_TOS might be defined in
the processor-specific files */
/* If you want direct threading, write a .h file for your processor! */
/* We could put some stuff here that causes a compile error, but then
we could not use this file in the other machine.h files */
/* Types: these types are used as Forth's internal types */
/* define this if IEEE singles and doubles are available as C data types */
/* the IEEE types are used only for loading and storing */
/* the IEEE double precision type */
typedef double DFloat;
/* the IEEE single precision type */
typedef float SFloat;
typedef CELL_TYPE Cell;
typedef unsigned CELL_TYPE UCell;
typedef Cell Bool;
typedef unsigned char Char;
typedef double Float;
typedef Char *Address;
typedef void **Label;
#else /* !defined(DOUBLY_INDIRECT) */
typedef void *Label;
#endif /* !defined(DOUBLY_INDIRECT) */