mirror of https://github.com/openXC7/prjxray.git
128 lines
3.0 KiB
Python
128 lines
3.0 KiB
Python
import random
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random.seed(0)
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import os
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import re
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def slice_xy():
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'''Return (X1, X2), (Y1, Y2) from XRAY_ROI, exclusive end (for xrange)'''
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# SLICE_X12Y100:SLICE_X27Y149
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# Note XRAY_ROI_GRID_* is something else
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m = re.match(
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r'SLICE_X([0-9]*)Y([0-9]*):SLICE_X([0-9]*)Y([0-9]*)',
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os.getenv('XRAY_ROI'))
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ms = [int(m.group(i + 1)) for i in range(4)]
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return ((ms[0], ms[2] + 1), (ms[1], ms[3] + 1))
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CLBN = 600
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SLICEX, SLICEY = slice_xy()
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# 800
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SLICEN = (SLICEY[1] - SLICEY[0]) * (SLICEX[1] - SLICEX[0])
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print('//SLICEX: %s' % str(SLICEX))
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print('//SLICEY: %s' % str(SLICEY))
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print('//SLICEN: %s' % str(SLICEN))
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print('//Requested CLBs: %s' % str(CLBN))
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def gen_slices():
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for slicey in range(*SLICEY):
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for slicex in range(*SLICEX):
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yield "SLICE_X%dY%d" % (slicex, slicey)
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DIN_N = CLBN * 4
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DOUT_N = CLBN * 1
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ffprims = ('FDRE', )
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ff_bels = (
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'AFF',
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'A5FF',
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'BFF',
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'B5FF',
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'CFF',
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'C5FF',
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'DFF',
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'D5FF',
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)
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print(
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'''
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module top(input clk, stb, di, output do);
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localparam integer DIN_N = %d;
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localparam integer DOUT_N = %d;
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reg [DIN_N-1:0] din;
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wire [DOUT_N-1:0] dout;
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reg [DIN_N-1:0] din_shr;
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reg [DOUT_N-1:0] dout_shr;
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always @(posedge clk) begin
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din_shr <= {din_shr, di};
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dout_shr <= {dout_shr, din_shr[DIN_N-1]};
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if (stb) begin
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din <= din_shr;
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dout_shr <= dout;
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end
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end
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assign do = dout_shr[DOUT_N-1];
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roi roi (
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.clk(clk),
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.din(din),
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.dout(dout)
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);
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endmodule
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''' % (DIN_N, DOUT_N))
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f = open('params.csv', 'w')
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f.write('name,loc,ce,r\n')
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slices = gen_slices()
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print(
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'module roi(input clk, input [%d:0] din, output [%d:0] dout);' %
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(DIN_N - 1, DOUT_N - 1))
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for i in range(CLBN):
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ffprim = random.choice(ffprims)
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force_ce = random.randint(0, 1)
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force_r = random.randint(0, 1)
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# clb_FD clb_FD (.clk(clk), .din(din[ 0 +: 4]), .dout(dout[ 0]));
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# clb_FD_1 clb_FD_1 (.clk(clk), .din(din[ 4 +: 4]), .dout(dout[ 1]));
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loc = next(slices)
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#bel = random.choice(ff_bels)
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bel = "AFF"
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name = 'clb_%s' % ffprim
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print(' %s' % name)
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print(
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' #(.LOC("%s"), .BEL("%s"), .FORCE_CE1(%d), .nFORCE_R0(%d))'
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% (loc, bel, force_ce, force_r))
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print(
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' clb_%d (.clk(clk), .din(din[ %d +: 4]), .dout(dout[ %d]));'
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% (i, 4 * i, 1 * i))
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f.write('%s,%s,%s,%s\n' % (name, loc, force_ce, force_r))
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f.close()
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print(
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'''endmodule
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// ---------------------------------------------------------------------
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''')
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print(
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'''
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module clb_FDRE (input clk, input [3:0] din, output dout);
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parameter LOC="SLICE_X16Y114";
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parameter BEL="AFF";
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parameter FORCE_CE1=0;
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parameter nFORCE_R0=1;
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(* LOC=LOC, BEL=BEL, KEEP, DONT_TOUCH *)
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FDRE ff (
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.C(clk),
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.Q(dout),
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.CE(din[0] | FORCE_CE1),
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.R(din[1] & nFORCE_R0),
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.D(din[2])
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);
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endmodule
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''')
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