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`timescale 1ns / 1ps
`include "aDefinitions.v"
/**********************************************************************************
Theia, Ray Cast Programable graphic Processing Unit.
Copyright (C) 2010  Diego Valverde (diego.valverde.g@gmail.com)
 
This program 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., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 
***********************************************************************************/
//------------------------------------------------
module FFD_POSEDGE_ASYNC_RESET # ( parameter SIZE=`WIDTH )
        (
        input wire Clock,
        input wire Clear,
        input wire [SIZE-1:0] D,
        output reg [SIZE-1:0] Q
        );
 
  always @(posedge Clock or posedge Clear)
    begin
           if (Clear)
        Q = 0;
      else
        Q = D;
    end
endmodule
//----------------------------------------------------
module FFD_POSEDGE_SYNCRONOUS_RESET # ( parameter SIZE=`WIDTH )
(
        input wire                              Clock,
        input wire                              Reset,
        input wire                              Enable,
        input wire [SIZE-1:0]    D,
        output reg [SIZE-1:0]    Q
);
 
 
always @ (posedge Clock)
begin
        if ( Reset )
                Q <= `WIDTH'b0;
        else
        begin
                if (Enable)
                        Q <= D;
        end
 
end//always
 
endmodule
//------------------------------------------------
module UPCOUNTER_POSEDGE # (parameter SIZE=`WIDTH)
(
input wire Clock, Reset,
input wire [SIZE-1:0] Initial,
input wire Enable,
output reg [SIZE-1:0] Q
);
 
 
  always @(posedge Clock )
  begin
      if (Reset)
        Q = Initial;
      else
                begin
                if (Enable)
                        Q = Q + 1;
 
                end
  end
 
endmodule
//------------------------------------------------
module MUXFULLPARALELL_2SEL_GENERIC # ( parameter SIZE=`WIDTH )
 (
 input wire [1:0] Sel,
 input wire [SIZE-1:0]I1, I2, I3,
 output reg [SIZE-1:0] O1
 );
 
always @( * )
 
  begin
 
    case (Sel)
 
      2'b00: O1 = I1;
      2'b01: O1 = I2;
                2'b10: O1 = I3;
                default: O1 = SIZE-1'b0;
 
    endcase
 
  end
 
endmodule
 
//------------------------------------------------
module MUXFULLPARALELL_3SEL_WALKINGONE # ( parameter SIZE=`WIDTH )
 (
 input wire [2:0] Sel,
 input wire [SIZE-1:0]I1, I2, I3,
 output reg [SIZE-1:0] O1
 );
 
always @( * )
 
  begin
 
    case (Sel)
 
      3'b001: O1 = I1;
      3'b010: O1 = I2;
                3'b100: O1 = I3;
                default: O1 = SIZE-1'b0;
 
    endcase
 
  end
 
endmodule
//------------------------------------------------
module SHIFTLEFT_POSEDGE # ( parameter SIZE=`WIDTH )
( input wire Clock,
  input wire Reset,
  input wire[SIZE-1:0] Initial,
  input wire      Enable,
  output wire[SIZE-1:0] O
);
 
reg [SIZE-1:0] tmp;
 
 
  always @(posedge Clock)
  begin
  if (Reset)
                tmp <= Initial;
        else
        begin
                if (Enable)
                        tmp <= tmp << 1;
        end
  end
 
 
    assign O  = tmp;
endmodule
//------------------------------------------------
//------------------------------------------------
module CIRCULAR_SHIFTLEFT_POSEDGE # ( parameter SIZE=`WIDTH )
( input wire Clock,
  input wire Reset,
  input wire[SIZE-1:0] Initial,
  input wire      Enable,
  output wire[SIZE-1:0] O
);
 
reg [SIZE-1:0] tmp;
 
 
  always @(posedge Clock)
  begin
  if (Reset || tmp[SIZE-1])
                tmp <= Initial;
        else
        begin
                if (Enable)
                        tmp <= tmp << 1;
        end
  end
 
 
    assign O  = tmp;
endmodule
//-----------------------------------------------------------
/*
        Sorry forgot how this flop is called.
        Any way Truth table is this
 
        Q       S       Q_next R
 
 
        1       0        1                0
        1       1       1                0
        X       X       0                 1
 
        The idea is that it toggles from 0 to 1 when S = 1, but if it
        gets another S = 1, it keeps the output to 1.
*/
module FFToggleOnce_1Bit
(
        input wire Clock,
        input wire Reset,
        input wire Enable,
        input wire S,
        output reg Q
 
);
 
 
reg Q_next;
 
always @ (negedge Clock)
begin
        Q <= Q_next;
end
 
always @ ( posedge Clock )
begin
        if (Reset)
                Q_next <= 0;
        else if (Enable)
                Q_next <= (S && !Q) || Q;
        else
                Q_next <= Q;
end
endmodule
 
//--------------------------------------------------------------
//************************OLD MODS***************************//
//************************OLD MODS***************************//
//************************OLD MODS***************************//
//************************OLD MODS***************************//
//-----------------------------------------------------------
 
/*
module UpCounterXXX_16
(
input wire Clock, Reset,
input wire [15:0] Initial,
output reg [15:0] Q
);
 
 
  always @(posedge Clock )
    begin
      if (Reset)
        Q = Initial;
      else
        Q = Q + 1'b1;
      end
 
endmodule
*/
//-----------------------------------------------------------
module UpCounter_16E
(
input wire Clock,
input wire Reset,
input wire [15:0] Initial,
input wire Enable,
output wire [15:0] Q
);
        reg [15:0] Temp;
 
 
  always @(posedge Clock or posedge Reset)
  begin
      if (Reset)
         Temp = Initial;
      else
                        if (Enable)
                                Temp =  Temp + 1'b1;
  end
        assign Q = Temp;
 
endmodule
//-----------------------------------------------------------
module UpCounter_32
(
input wire Clock,
input wire Reset,
input wire [31:0] Initial,
input wire Enable,
output wire [31:0] Q
);
        reg [31:0] Temp;
 
 
  always @(posedge Clock or posedge Reset)
  begin
      if (Reset)
                begin
         Temp = Initial;
                end
      else
                begin
                        if (Enable)
                        begin
                                Temp =  Temp + 1'b1;
                        end
                end
  end
        assign Q = Temp;
 
endmodule
//-----------------------------------------------------------
module UpCounter_3
(
input wire Clock,
input wire Reset,
input wire [2:0] Initial,
input wire Enable,
output wire [2:0] Q
);
        reg [2:0] Temp;
 
 
  always @(posedge Clock or posedge Reset)
  begin
      if (Reset)
         Temp = Initial;
      else
                        if (Enable)
                                Temp =  Temp + 3'b1;
  end
        assign Q = Temp;
 
endmodule
 
 
module FFD32_POSEDGE
(
        input wire Clock,
        input wire[31:0] D,
        output reg[31:0] Q
);
 
        always @ (posedge Clock)
                Q <= D;
 
endmodule
 
//------------------------------------------------
module FF_OPCODE_POSEDGE_SYNCRONOUS_RESET
        (
        input wire Clock,
        input wire Clear,
        input wire[`INSTRUCTION_OP_LENGTH-1:0] D,
        output reg[`INSTRUCTION_OP_LENGTH-1:0]  Q
        );
 
  always @(posedge Clock or posedge Clear)
    begin
           if (Clear)
        Q = `INSTRUCTION_OP_LENGTH'b0;
      else
        Q = D;
    end
endmodule
//------------------------------------------------
module FF32_POSEDGE_SYNCRONOUS_RESET
        (
        input wire Clock,
        input wire Clear,
        input wire[31:0] D,
        output reg[31:0]  Q
        );
 
  always @(posedge Clock or posedge Clear)
    begin
           if (Clear)
        Q = 32'b0;
      else
        Q = D;
    end
endmodule
//------------------------------------------------
module FF16_POSEDGE_SYNCRONOUS_RESET
        (
        input wire Clock,
        input wire Clear,
        input wire[15:0] D,
        output reg[15:0]  Q
        );
 
  always @(posedge Clock or posedge Clear)
    begin
           if (Clear)
        Q = 16'b0;
      else
        Q = D;
    end
endmodule
 
//------------------------------------------------
module MUXFULLPARALELL_96bits_2SEL
 (
 input wire Sel,
 input wire [95:0]I1, I2,
 output reg [95:0] O1
 );
 
 
 
always @( * )
 
  begin
 
    case (Sel)
 
      1'b0: O1 = I1;
      1'b1: O1 = I2;
 
    endcase
 
  end
 
endmodule
//------------------------------------------------
 
module MUXFULLPARALELL_16bits_2SEL_X
 (
 input wire [1:0] Sel,
 input wire [15:0]I1, I2, I3,
 output reg [15:0] O1
 );
 
 
 
always @( * )
 
  begin
 
    case (Sel)
 
      2'b00: O1 = I1;
      2'b01: O1 = I2;
                2'b10: O1 = I3;
                default: O1 = 16'b0;
 
    endcase
 
  end
 
endmodule
//------------------------------------------------
module MUXFULLPARALELL_16bits_2SEL
 (
 input wire Sel,
 input wire [15:0]I1, I2,
 output reg [15:0] O1
 );
 
 
 
always @( * )
 
  begin
 
    case (Sel)
 
      1'b0: O1 = I1;
      1'b1: O1 = I2;
 
    endcase
 
  end
 
endmodule
 
 
//------------------------------------------------
module MUXFULLPARALELL_1Bit_1SEL
 (
 input wire Sel,
 input wire I1, I2,
 output reg O1
 );
 
 
 
always @( * )
 
  begin
 
    case (Sel)
 
      1'b0: O1 = I1;
      1'b1: O1 = I2;
 
    endcase
 
  end
 
endmodule
//--------------------------------------------------------------
module FFD_OPCODE_POSEDGE
(
        input wire Clock,
        input wire[`INSTRUCTION_OP_LENGTH-1:0] D,
        output reg[`INSTRUCTION_OP_LENGTH-1:0] Q
);
 
        always @ (posedge Clock)
                Q <= D;
 
endmodule
//--------------------------------------------------------------
module FFD16_POSEDGE
(
        input wire Clock,
        input wire[15:0] D,
        output reg[15:0] Q
);
 
        always @ (posedge Clock)
                Q <= D;
 
endmodule
//--------------------------------------------------------------
 
  module FFT1
  (
   input wire D,
   input wire Clock,
   input wire Reset ,
   output reg Q
 );
 
  always @ ( posedge Clock or posedge Reset )
  begin
 
        if (Reset)
        begin
    Q <= 1'b0;
   end
        else
        begin
                if (D)
                        Q <=  ! Q;
        end
 
  end//always
 
 endmodule
//--------------------------------------------------------------

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[/] [theia_gpu/] [branches/] [beta_1.1/] [rtl/] [Collaterals/] [Collaterals.v] - Blame information for rev 67

Line No.	Rev	Author	Line
1	36	diegovalve	`timescale 1ns / 1ps
2			`include "aDefinitions.v"
3			`/**********************************************************************************`
4			`Theia, Ray Cast Programable graphic Processing Unit.`
5			`Copyright (C) 2010 Diego Valverde (diego.valverde.g@gmail.com)`
6
7			`This program is free software; you can redistribute it and/or`
8			`modify it under the terms of the GNU General Public License`
9			`as published by the Free Software Foundation; either version 2`
10			`of the License, or (at your option) any later version.`
11
12			`This program is distributed in the hope that it will be useful,`
13			`but WITHOUT ANY WARRANTY; without even the implied warranty of`
14			`MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the`
15			`GNU General Public License for more details.`
16
17			`You should have received a copy of the GNU General Public License`
18			`along with this program; if not, write to the Free Software`
19			`Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.`
20
21			`***********************************************************************************/`
22			`//------------------------------------------------`
23			module FFD_POSEDGE_ASYNC_RESET # ( parameter SIZE=`WIDTH )
24			`(`
25			`input wire Clock,`
26			`input wire Clear,`
27			`input wire [SIZE-1:0] D,`
28			`output reg [SIZE-1:0] Q`
29			`);`
30
31			`always @(posedge Clock or posedge Clear)`
32			`begin`
33			`if (Clear)`
34			`Q = 0;`
35			`else`
36			`Q = D;`
37			`end`
38			`endmodule`
39			`//----------------------------------------------------`
40			module FFD_POSEDGE_SYNCRONOUS_RESET # ( parameter SIZE=`WIDTH )
41			`(`
42			`input wire Clock,`
43			`input wire Reset,`
44			`input wire Enable,`
45			`input wire [SIZE-1:0] D,`
46			`output reg [SIZE-1:0] Q`
47			`);`
48
49
50			`always @ (posedge Clock)`
51			`begin`
52			`if ( Reset )`
53			Q <= `WIDTH'b0;
54			`else`
55			`begin`
56			`if (Enable)`
57			`Q <= D;`
58			`end`
59
60			`end//always`
61
62			`endmodule`
63			`//------------------------------------------------`
64			module UPCOUNTER_POSEDGE # (parameter SIZE=`WIDTH)
65			`(`
66			`input wire Clock, Reset,`
67			`input wire [SIZE-1:0] Initial,`
68			`input wire Enable,`
69			`output reg [SIZE-1:0] Q`
70			`);`
71
72
73			`always @(posedge Clock )`
74			`begin`
75			`if (Reset)`
76			`Q = Initial;`
77			`else`
78			`begin`
79			`if (Enable)`
80			`Q = Q + 1;`
81
82			`end`
83			`end`
84
85			`endmodule`
86			`//------------------------------------------------`
87			module MUXFULLPARALELL_2SEL_GENERIC # ( parameter SIZE=`WIDTH )
88			`(`
89			`input wire [1:0] Sel,`
90			`input wire [SIZE-1:0]I1, I2, I3,`
91			`output reg [SIZE-1:0] O1`
92			`);`
93
94			`always @( * )`
95
96			`begin`
97
98			`case (Sel)`
99
100			`2'b00: O1 = I1;`
101			`2'b01: O1 = I2;`
102			`2'b10: O1 = I3;`
103			`default: O1 = SIZE-1'b0;`
104
105			`endcase`
106
107			`end`
108
109			`endmodule`
110
111			`//------------------------------------------------`
112			module MUXFULLPARALELL_3SEL_WALKINGONE # ( parameter SIZE=`WIDTH )
113			`(`
114			`input wire [2:0] Sel,`
115			`input wire [SIZE-1:0]I1, I2, I3,`
116			`output reg [SIZE-1:0] O1`
117			`);`
118
119			`always @( * )`
120
121			`begin`
122
123			`case (Sel)`
124
125			`3'b001: O1 = I1;`
126			`3'b010: O1 = I2;`
127			`3'b100: O1 = I3;`
128			`default: O1 = SIZE-1'b0;`
129
130			`endcase`
131
132			`end`
133
134			`endmodule`
135			`//------------------------------------------------`
136			module SHIFTLEFT_POSEDGE # ( parameter SIZE=`WIDTH )
137			`( input wire Clock,`
138			`input wire Reset,`
139			`input wire[SIZE-1:0] Initial,`
140			`input wire Enable,`
141			`output wire[SIZE-1:0] O`
142			`);`
143
144			`reg [SIZE-1:0] tmp;`
145
146
147			`always @(posedge Clock)`
148			`begin`
149			`if (Reset)`
150			`tmp <= Initial;`
151			`else`
152			`begin`
153			`if (Enable)`
154			`tmp <= tmp << 1;`
155			`end`
156			`end`
157
158
159			`assign O = tmp;`
160			`endmodule`
161			`//------------------------------------------------`
162			`//------------------------------------------------`
163			module CIRCULAR_SHIFTLEFT_POSEDGE # ( parameter SIZE=`WIDTH )
164			`( input wire Clock,`
165			`input wire Reset,`
166			`input wire[SIZE-1:0] Initial,`
167			`input wire Enable,`
168			`output wire[SIZE-1:0] O`
169			`);`
170
171			`reg [SIZE-1:0] tmp;`
172
173
174			`always @(posedge Clock)`
175			`begin`
176			`if (Reset \|\| tmp[SIZE-1])`
177			`tmp <= Initial;`
178			`else`
179			`begin`
180			`if (Enable)`
181			`tmp <= tmp << 1;`
182			`end`
183			`end`
184
185
186			`assign O = tmp;`
187			`endmodule`
188			`//-----------------------------------------------------------`
189			`/*`
190			`Sorry forgot how this flop is called.`
191			`Any way Truth table is this`
192
193			`Q S Q_next R`
194
195
196			`1 0 1 0`
197			`1 1 1 0`
198			`X X 0 1`
199
200			`The idea is that it toggles from 0 to 1 when S = 1, but if it`
201			`gets another S = 1, it keeps the output to 1.`
202			`*/`
203			`module FFToggleOnce_1Bit`
204			`(`
205			`input wire Clock,`
206			`input wire Reset,`
207			`input wire Enable,`
208			`input wire S,`
209			`output reg Q`
210
211			`);`
212
213
214			`reg Q_next;`
215
216			`always @ (negedge Clock)`
217			`begin`
218			`Q <= Q_next;`
219			`end`
220
221			`always @ ( posedge Clock )`
222			`begin`
223			`if (Reset)`
224			`Q_next <= 0;`
225			`else if (Enable)`
226			`Q_next <= (S && !Q) \|\| Q;`
227			`else`
228			`Q_next <= Q;`
229			`end`
230			`endmodule`
231
232			`//--------------------------------------------------------------`
233			`//**********************OLD MODS*************************//`
234			`//**********************OLD MODS*************************//`
235			`//**********************OLD MODS*************************//`
236			`//**********************OLD MODS*************************//`
237			`//-----------------------------------------------------------`
238
239			`/*`
240			`module UpCounterXXX_16`
241			`(`
242			`input wire Clock, Reset,`
243			`input wire [15:0] Initial,`
244			`output reg [15:0] Q`
245			`);`
246
247
248			`always @(posedge Clock )`
249			`begin`
250			`if (Reset)`
251			`Q = Initial;`
252			`else`
253			`Q = Q + 1'b1;`
254			`end`
255
256			`endmodule`
257			`*/`
258			`//-----------------------------------------------------------`
259			`module UpCounter_16E`
260			`(`
261			`input wire Clock,`
262			`input wire Reset,`
263			`input wire [15:0] Initial,`
264			`input wire Enable,`
265			`output wire [15:0] Q`
266			`);`
267			`reg [15:0] Temp;`
268
269
270			`always @(posedge Clock or posedge Reset)`
271			`begin`
272			`if (Reset)`
273			`Temp = Initial;`
274			`else`
275			`if (Enable)`
276			`Temp = Temp + 1'b1;`
277			`end`
278			`assign Q = Temp;`
279
280			`endmodule`
281			`//-----------------------------------------------------------`
282			`module UpCounter_32`
283			`(`
284			`input wire Clock,`
285			`input wire Reset,`
286			`input wire [31:0] Initial,`
287			`input wire Enable,`
288			`output wire [31:0] Q`
289			`);`
290			`reg [31:0] Temp;`
291
292
293			`always @(posedge Clock or posedge Reset)`
294			`begin`
295			`if (Reset)`
296			`begin`
297			`Temp = Initial;`
298			`end`
299			`else`
300			`begin`
301			`if (Enable)`
302			`begin`
303			`Temp = Temp + 1'b1;`
304			`end`
305			`end`
306			`end`
307			`assign Q = Temp;`
308
309			`endmodule`
310			`//-----------------------------------------------------------`
311			`module UpCounter_3`
312			`(`
313			`input wire Clock,`
314			`input wire Reset,`
315			`input wire [2:0] Initial,`
316			`input wire Enable,`
317			`output wire [2:0] Q`
318			`);`
319			`reg [2:0] Temp;`
320
321
322			`always @(posedge Clock or posedge Reset)`
323			`begin`
324			`if (Reset)`
325			`Temp = Initial;`
326			`else`
327			`if (Enable)`
328			`Temp = Temp + 3'b1;`
329			`end`
330			`assign Q = Temp;`
331
332			`endmodule`
333
334
335			`module FFD32_POSEDGE`
336			`(`
337			`input wire Clock,`
338			`input wire[31:0] D,`
339			`output reg[31:0] Q`
340			`);`
341
342			`always @ (posedge Clock)`
343			`Q <= D;`
344
345			`endmodule`
346
347			`//------------------------------------------------`
348			`module FF_OPCODE_POSEDGE_SYNCRONOUS_RESET`
349			`(`
350			`input wire Clock,`
351			`input wire Clear,`
352			input wire[`INSTRUCTION_OP_LENGTH-1:0] D,
353			output reg[`INSTRUCTION_OP_LENGTH-1:0] Q
354			`);`
355
356			`always @(posedge Clock or posedge Clear)`
357			`begin`
358			`if (Clear)`
359			Q = `INSTRUCTION_OP_LENGTH'b0;
360			`else`
361			`Q = D;`
362			`end`
363			`endmodule`
364			`//------------------------------------------------`
365			`module FF32_POSEDGE_SYNCRONOUS_RESET`
366			`(`
367			`input wire Clock,`
368			`input wire Clear,`
369			`input wire[31:0] D,`
370			`output reg[31:0] Q`
371			`);`
372
373			`always @(posedge Clock or posedge Clear)`
374			`begin`
375			`if (Clear)`
376			`Q = 32'b0;`
377			`else`
378			`Q = D;`
379			`end`
380			`endmodule`
381			`//------------------------------------------------`
382			`module FF16_POSEDGE_SYNCRONOUS_RESET`
383			`(`
384			`input wire Clock,`
385			`input wire Clear,`
386			`input wire[15:0] D,`
387			`output reg[15:0] Q`
388			`);`
389
390			`always @(posedge Clock or posedge Clear)`
391			`begin`
392			`if (Clear)`
393			`Q = 16'b0;`
394			`else`
395			`Q = D;`
396			`end`
397			`endmodule`
398
399			`//------------------------------------------------`
400			`module MUXFULLPARALELL_96bits_2SEL`
401			`(`
402			`input wire Sel,`
403			`input wire [95:0]I1, I2,`
404			`output reg [95:0] O1`
405			`);`
406
407
408
409			`always @( * )`
410
411			`begin`
412
413			`case (Sel)`
414
415			`1'b0: O1 = I1;`
416			`1'b1: O1 = I2;`
417
418			`endcase`
419
420			`end`
421
422			`endmodule`
423			`//------------------------------------------------`
424
425			`module MUXFULLPARALELL_16bits_2SEL_X`
426			`(`
427			`input wire [1:0] Sel,`
428			`input wire [15:0]I1, I2, I3,`
429			`output reg [15:0] O1`
430			`);`
431
432
433
434			`always @( * )`
435
436			`begin`
437
438			`case (Sel)`
439
440			`2'b00: O1 = I1;`
441			`2'b01: O1 = I2;`
442			`2'b10: O1 = I3;`
443			`default: O1 = 16'b0;`
444
445			`endcase`
446
447			`end`
448
449			`endmodule`
450			`//------------------------------------------------`
451			`module MUXFULLPARALELL_16bits_2SEL`
452			`(`
453			`input wire Sel,`
454			`input wire [15:0]I1, I2,`
455			`output reg [15:0] O1`
456			`);`
457
458
459
460			`always @( * )`
461
462			`begin`
463
464			`case (Sel)`
465
466			`1'b0: O1 = I1;`
467			`1'b1: O1 = I2;`
468
469			`endcase`
470
471			`end`
472
473			`endmodule`
474
475
476			`//------------------------------------------------`
477			`module MUXFULLPARALELL_1Bit_1SEL`
478			`(`
479			`input wire Sel,`
480			`input wire I1, I2,`
481			`output reg O1`
482			`);`
483
484
485
486			`always @( * )`
487
488			`begin`
489
490			`case (Sel)`
491
492			`1'b0: O1 = I1;`
493			`1'b1: O1 = I2;`
494
495			`endcase`
496
497			`end`
498
499			`endmodule`
500			`//--------------------------------------------------------------`
501			`module FFD_OPCODE_POSEDGE`
502			`(`
503			`input wire Clock,`
504			input wire[`INSTRUCTION_OP_LENGTH-1:0] D,
505			output reg[`INSTRUCTION_OP_LENGTH-1:0] Q
506			`);`
507
508			`always @ (posedge Clock)`
509			`Q <= D;`
510
511			`endmodule`
512			`//--------------------------------------------------------------`
513			`module FFD16_POSEDGE`
514			`(`
515			`input wire Clock,`
516			`input wire[15:0] D,`
517			`output reg[15:0] Q`
518			`);`
519
520			`always @ (posedge Clock)`
521			`Q <= D;`
522
523			`endmodule`
524			`//--------------------------------------------------------------`
525
526			`module FFT1`
527			`(`
528			`input wire D,`
529			`input wire Clock,`
530			`input wire Reset ,`
531			`output reg Q`
532			`);`
533
534			`always @ ( posedge Clock or posedge Reset )`
535			`begin`
536
537			`if (Reset)`
538			`begin`
539			`Q <= 1'b0;`
540			`end`
541			`else`
542			`begin`
543			`if (D)`
544			`Q <= ! Q;`
545			`end`
546
547			`end//always`
548
549			`endmodule`
550			`//--------------------------------------------------------------`