134 lines
4.3 KiB
C
134 lines
4.3 KiB
C
#ifndef __device_H
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#define __device_H
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/*
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* Copyright (c) 2001-2003 Stephen Williams (steve@icarus.com)
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*
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* This source code is free software; you can redistribute it
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* and/or modify it in source code form under the terms of the GNU
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* General Public License as published by the Free Software
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* Foundation; either version 2 of the License, or (at your option)
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* any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
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*/
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#ifdef HAVE_CVS_IDENT
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#ident "$Id: device.h,v 1.15 2007/02/26 19:49:49 steve Exp $"
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#endif
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# include <ivl_target.h>
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/*
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* This code generator supports a variety of device types. It does
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* this by keeping a device "driver" structure for each device
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* type. The device structure contains pointers to functions that emit
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* the proper XNF for a given type of device.
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*
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* If a device supports a method, the function pointer is filled in
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* with a pointer to the proper function.
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*
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* If a device does not support the method, then the pointer is null.
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*/
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typedef const struct device_s* device_t;
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struct device_s {
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/* These methods draw leading and trailing format text. */
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void (*show_header)(ivl_design_t des);
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void (*show_footer)(ivl_design_t des);
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/* Draw scopes marked by ivl_synthesis_cell */
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void (*show_cell_scope)(ivl_scope_t net);
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/* Draw pads connected to the specified signal. */
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void (*show_pad)(ivl_signal_t sig, const char*str);
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/* Draw basic logic devices. */
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void (*show_logic)(ivl_net_logic_t net);
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/* This method emits a D type Flip-Flop */
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void (*show_dff)(ivl_lpm_t net);
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/* These methods show various comparators */
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void (*show_cmp_eq)(ivl_lpm_t net);
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void (*show_cmp_ne)(ivl_lpm_t net);
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void (*show_cmp_ge)(ivl_lpm_t net);
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void (*show_cmp_gt)(ivl_lpm_t net);
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/* This method draws MUX devices */
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void (*show_mux)(ivl_lpm_t net);
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/* This method draws ADD devices */
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void (*show_add)(ivl_lpm_t net);
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void (*show_sub)(ivl_lpm_t net);
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/* These methods draw SHIFT devices */
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void (*show_shiftl)(ivl_lpm_t net);
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void (*show_shiftr)(ivl_lpm_t net);
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/* Multipliers */
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void (*show_mult)(ivl_lpm_t net);
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/* Constants */
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void (*show_constant)(ivl_net_const_t net);
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};
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/*
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* Return the device_t cookie given the name of the architecture. If
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* the device is not found, return 0.
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*
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* This function is used if the user specifies the architecture
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* explicitly, with the -parch=name flag.
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*/
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extern device_t device_from_arch(const char*arch);
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/*
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* $Log: device.h,v $
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* Revision 1.15 2007/02/26 19:49:49 steve
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* Spelling fixes (larry doolittle)
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*
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* Revision 1.14 2003/11/12 03:20:14 steve
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* devices need show_cmp_gt
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*
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* Revision 1.13 2003/10/27 02:18:27 steve
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* Emit constants for LPM device.
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*
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* Revision 1.12 2003/08/09 03:23:03 steve
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* Add support for IVL_LPM_MULT device.
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*
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* Revision 1.11 2003/06/24 03:55:00 steve
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* Add ivl_synthesis_cell support for virtex2.
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*
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* Revision 1.10 2002/10/28 02:05:56 steve
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* Add Virtex code generators for left shift,
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* subtraction, and GE comparators.
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*
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* Revision 1.9 2002/08/12 01:35:02 steve
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* conditional ident string using autoconfig.
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*
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* Revision 1.8 2002/08/11 23:47:04 steve
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* Add missing Log and Ident strings.
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*
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* Revision 1.7 2001/09/16 01:48:16 steve
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* Suppor the PAD attribute on signals.
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*
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* Revision 1.6 2001/09/02 21:33:07 steve
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* Rearrange the XNF code generator to be generic-xnf
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* so that non-XNF code generation is also possible.
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*
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* Start into the virtex EDIF output driver.
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*
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* Revision 1.5 2001/09/01 04:30:44 steve
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* Generic ADD code.
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*
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* Revision 1.4 2001/09/01 02:28:42 steve
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* Generate code for MUX devices.
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*
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* Revision 1.3 2001/09/01 02:01:30 steve
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* identity compare, and PWR records for constants.
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*
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* Revision 1.2 2001/08/31 02:59:06 steve
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* Add root port SIG records.
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*
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* Revision 1.1 2001/08/28 04:14:20 steve
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* Add the fpga target.
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*
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*/
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#endif
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