mirror of https://github.com/openXC7/prjxray.git
137 lines
3.9 KiB
Python
137 lines
3.9 KiB
Python
#!/usr/bin/env python3
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# -*- coding: utf-8 -*-
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#
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# Copyright (C) 2017-2020 The Project X-Ray Authors.
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#
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# Use of this source code is governed by a ISC-style
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# license that can be found in the LICENSE file or at
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# https://opensource.org/licenses/ISC
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#
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# SPDX-License-Identifier: ISC
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import json
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import os
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import random
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random.seed(int(os.getenv("SEED"), 16))
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from prjxray.db import Database
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from prjxray import util
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from prjxray.state_gen import StateGen
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def gen_sites():
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xy_fun = util.create_xy_fun('BUFGCTRL_')
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db = Database(util.get_db_root(), util.get_part())
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grid = db.grid()
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for tile_name in sorted(grid.tiles()):
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loc = grid.loc_of_tilename(tile_name)
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gridinfo = grid.gridinfo_at_loc(loc)
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sites = []
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xs = []
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ys = []
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for site, site_type in gridinfo.sites.items():
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if site_type == 'BUFGCTRL':
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x, y = xy_fun(site)
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xs.append(x)
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ys.append(y)
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sites.append((site, x, y))
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if sites:
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yield tile_name, min(xs), min(ys), sorted(sites)
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def main():
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print('''
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module top();
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''')
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params_list = []
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state_gen = StateGen(list(gen_sites()), states_per_site=12 * 16)
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for tile_name, x_min, y_min, sites in state_gen:
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for site, x, y in sites:
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params = {}
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params['tile'] = tile_name
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params['site'] = site
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params['x'] = x - x_min
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params['y'] = y - y_min
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params['IN_USE'] = state_gen.next_state()
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if params['IN_USE']:
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params['INIT_OUT'] = state_gen.next_state()
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params['IS_CE0_INVERTED'] = state_gen.next_state()
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params['IS_CE1_INVERTED'] = state_gen.next_state()
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params['IS_S0_INVERTED'] = state_gen.next_state()
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params['IS_S1_INVERTED'] = state_gen.next_state()
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params['IS_IGNORE0_INVERTED'] = state_gen.next_state()
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params['IS_IGNORE1_INVERTED'] = state_gen.next_state()
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params['PRESELECT_I0'] = state_gen.next_state()
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if not params['PRESELECT_I0']:
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params['PRESELECT_I1'] = state_gen.next_state()
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else:
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params['PRESELECT_I1'] = 0
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params['force_0_high'] = state_gen.next_state()
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params['force_1_high'] = state_gen.next_state()
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if params['force_0_high']:
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params['force_1_high'] = 0
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print(
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'''
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wire ce0_{site};
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wire s0_{site};
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(* KEEP, DONT_TOUCH *)
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LUT6 l0_{site} (
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.O(ce0_{site})
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);
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(* KEEP, DONT_TOUCH *)
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LUT6 l1_{site} (
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.O(s0_{site})
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);
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wire ce1_{site};
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wire s1_{site};
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(* KEEP, DONT_TOUCH *)
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LUT6 l2_{site} (
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.O(ce1_{site})
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);
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(* KEEP, DONT_TOUCH *)
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LUT6 l3_{site} (
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.O(s1_{site})
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);
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(* KEEP, DONT_TOUCH, LOC = "{site}" *)
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BUFGCTRL #(
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.INIT_OUT({INIT_OUT}),
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.PRESELECT_I0({PRESELECT_I0}),
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.PRESELECT_I1({PRESELECT_I1}),
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.IS_CE0_INVERTED({IS_CE0_INVERTED}),
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.IS_CE1_INVERTED({IS_CE1_INVERTED}),
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.IS_S0_INVERTED({IS_S0_INVERTED}),
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.IS_S1_INVERTED({IS_S1_INVERTED}),
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.IS_IGNORE0_INVERTED({IS_IGNORE0_INVERTED}),
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.IS_IGNORE1_INVERTED({IS_IGNORE1_INVERTED})
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) buf_{site} (
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.CE0(ce0_{site} | {force_0_high}),
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.S0(s0_{site} | {force_0_high}),
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.CE1(ce1_{site} | {force_1_high}),
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.S1(s1_{site} | {force_1_high})
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);
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'''.format(**params))
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params_list.append(params)
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print("""
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(* KEEP, DONT_TOUCH *)
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LUT6 dummy (
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);""")
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print("endmodule")
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with open('params.json', 'w') as f:
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json.dump(params_list, f, indent=2)
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if __name__ == '__main__':
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main()
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