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[/] [bluespec-h264/] [trunk/] [src/] [mkPrediction.bsv] - Blame information for rev 2

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Line No. Rev Author Line
1 2 jamey.hick 
//**********************************************************************
2 
// Prediction
3 
//----------------------------------------------------------------------
4 
//
5 
//
6 
 
7 
package mkPrediction;
8 
 
9 
import H264Types::*;
10 
 
11 
import IPrediction::*;
12 
import IInterpolator::*;
13 
import mkInterpolator::*;
14 
import FIFO::*;
15 
import FIFOF::*;
16 
import Vector::*;
17 
 
18 
import Connectable::*;
19 
import GetPut::*;
20 
import ClientServer::*;
21 
 
22 
 
23 
//-----------------------------------------------------------
24 
// Local Datatypes
25 
//-----------------------------------------------------------
26 
 
27 
typedef union tagged
28 
{
29 
 void     Intra;            //Intra non-4x4
30 
 void     Intra4x4;
31 
 void     Inter;
32 
}
33 
OutState deriving(Eq,Bits);
34 
 
35 
typedef union tagged
36 
{
37 
 void     Start;            //not working on anything in particular
38 
 void     Intra16x16;
39 
 void     Intra4x4;
40 
 void     IntraPCM;
41 
}
42 
IntraState deriving(Eq,Bits);
43 
 
44 
typedef union tagged
45 
{
46 
 void     Start;            //not working on anything in particular
47 
 void     InterP16x16;
48 
 void     InterP16x8;
49 
 void     InterP8x16;
50 
 void     InterP8x8;
51 
 void     InterP8x8ref0;
52 
 void     InterPskip;
53 
}
54 
InterState deriving(Eq,Bits);
55 
 
56 
typedef union tagged
57 
{
58 
 Bit#(1) NotInter;//0 for not available, 1 for intra-coded
59 
 struct {Bit#(4) refIdx; Bit#(14) mvhor; Bit#(12) mvver; Bit#(1) nonZeroTransCoeff;} BlockMv;
60 
}
61 
InterBlockMv deriving(Eq,Bits);
62 
 
63 
typedef union tagged
64 
{
65 
 void SkipMB;
66 
 void NonSkipMB;
67 
 void Intra4x4;
68 
 void Intra4x4PlusChroma;
69 
}
70 
NextOutput deriving(Eq,Bits);
71 
 
72 
 
73 
 
74 
//-----------------------------------------------------------
75 
// Helper functions
76 
 
77 
function Bit#(8) intra4x4SelectTop( Bit#(72) valVector, Bit#(4) idx );
78 
   case(idx)
79 
      0: return valVector[15:8];
80 
      1: return valVector[23:16];
81 
      2: return valVector[31:24];
82 
      3: return valVector[39:32];
83 
      4: return valVector[47:40];
84 
      5: return valVector[55:48];
85 
      6: return valVector[63:56];
86 
      7: return valVector[71:64];
87 
      default: return valVector[7:0];
88 
   endcase
89 
endfunction
90 
 
91 
function Bit#(8) intra4x4SelectLeft( Bit#(40) valVector, Bit#(3) idx );
92 
   case(idx)
93 
      0: return valVector[15:8];
94 
      1: return valVector[23:16];
95 
      2: return valVector[31:24];
96 
      3: return valVector[39:32];
97 
      default: return valVector[7:0];
98 
   endcase
99 
endfunction
100 
 
101 
function Bit#(8) select32to8( Bit#(32) valVector, Bit#(2) idx );
102 
   case(idx)
103 
      0: return valVector[7:0];
104 
      1: return valVector[15:8];
105 
      2: return valVector[23:16];
106 
      3: return valVector[31:24];
107 
   endcase
108 
endfunction
109 
 
110 
function Bit#(8) select16to8( Bit#(16) valVector, Bit#(1) idx );
111 
   case(idx)
112 
      0: return valVector[7:0];
113 
      1: return valVector[15:8];
114 
   endcase
115 
endfunction
116 
 
117 
function Bool absDiffGEFour14( Bit#(14) val1, Bit#(14) val2 );
118 
   Int#(15) int1 = unpack(signExtend(val1));
119 
   Int#(15) int2 = unpack(signExtend(val2));
120 
   if(int1>=int2)
121 
      return (int1 >= (int2+4));
122 
   else
123 
      return (int2 >= (int1+4));
124 
endfunction
125 
 
126 
function Bool absDiffGEFour12( Bit#(12) val1, Bit#(12) val2 );
127 
   Int#(13) int1 = unpack(signExtend(val1));
128 
   Int#(13) int2 = unpack(signExtend(val2));
129 
   if(int1>=int2)
130 
      return (int1 >= (int2+4));
131 
   else
132 
      return (int2 >= (int1+4));
133 
endfunction
134 
 
135 
 
136 
//-----------------------------------------------------------
137 
// Prediction Module
138 
//-----------------------------------------------------------
139 
 
140 
 
141 
(* synthesize *)
142 
module mkPrediction( IPrediction );
143 
 
144 
   //Common state
145 
   FIFO#(EntropyDecOT)   infifo     <- mkSizedFIFO(prediction_infifo_size);
146 
   FIFO#(InverseTransOT) infifo_ITB <- mkSizedFIFO(prediction_infifo_ITB_size);
147 
   FIFO#(EntropyDecOT)   outfifo    <- mkFIFO;
148 
   Reg#(Bool)            passFlag   <- mkReg(True);
149 
   Reg#(Bit#(4))         blockNum   <- mkReg(0);
150 
   Reg#(Bit#(4))         pixelNum   <- mkReg(0);
151 
 
152 
   Reg#(Bit#(PicWidthSz))  picWidth  <- mkReg(maxPicWidthInMB);
153 
   Reg#(Bit#(PicHeightSz)) picHeight <- mkReg(0);
154 
   Reg#(Bit#(PicAreaSz))   firstMb   <- mkReg(0);
155 
   Reg#(Bit#(PicAreaSz))   currMb    <- mkReg(0);
156 
   Reg#(Bit#(PicAreaSz))   currMbHor <- mkReg(0);//horizontal position of currMb
157 
   Reg#(Bit#(PicHeightSz)) currMbVer <- mkReg(0);//vertical position of currMb
158 
 
159 
   FIFOF#(OutState)   outstatefifo   <- mkFIFOF;
160 
   FIFOF#(NextOutput) nextoutputfifo <- mkFIFOF;
161 
   Reg#(Bit#(4))   outBlockNum    <- mkReg(0);
162 
   Reg#(Bit#(4))   outPixelNum    <- mkReg(0);
163 
   FIFO#(Vector#(4,Bit#(8))) predictedfifo  <- mkSizedFIFO(prediction_predictedfifo_size);
164 
   Reg#(Bit#(1))   outChromaFlag  <- mkReg(0);
165 
   Reg#(Bool)      outFirstQPFlag <- mkReg(False);
166 
 
167 
   DoNotFire donotfire <- mkDoNotFire();
168 
 
169 
   //Reg#(Vector#(16,Bit#(8))) workVector       <- mkRegU();
170 
 
171 
   //Inter state
172 
   Interpolator interpolator <- mkInterpolator();
173 
   Reg#(InterState) interstate <- mkReg(Start);
174 
   Reg#(Bit#(PicAreaSz)) interPskipCount <- mkReg(0);
175 
   Reg#(Vector#(5,InterBlockMv)) interTopVal <- mkRegU();
176 
   Reg#(Vector#(4,InterBlockMv)) interLeftVal <- mkRegU();
177 
   Reg#(Vector#(4,InterBlockMv)) interTopLeftVal <- mkRegU();
178 
   FIFO#(MemReq#(TAdd#(PicWidthSz,2),32)) interMemReqQ <- mkFIFO;
179 
   Reg#(MemReq#(TAdd#(PicWidthSz,2),32)) interMemReqQdelay <- mkRegU();
180 
   FIFO#(MemResp#(32))  interMemRespQ <- mkFIFO;
181 
   Reg#(Bit#(3)) interReqCount <- mkReg(0);
182 
   Reg#(Bit#(3)) interRespCount <- mkReg(0);
183 
 
184 
   Reg#(Bit#(1)) interStepCount <- mkReg(0);
185 
   Reg#(Bit#(2)) interMbPartNum <- mkReg(0);
186 
   Reg#(Bit#(2)) interSubMbPartNum <- mkReg(0);
187 
   Reg#(Bit#(2)) interPassingCount <- mkReg(0);
188 
   Reg#(Vector#(4,Bit#(4))) interRefIdxVector <- mkRegU();
189 
   Reg#(Vector#(4,Bit#(2))) interSubMbTypeVector <- mkRegU();
190 
   RFile1#(Bit#(4),Tuple2#(Bit#(14),Bit#(12))) interMvFile <- mkRFile1Full();
191 
   Reg#(Bit#(15)) interMvDiffTemp <- mkReg(0);
192 
   FIFO#(Tuple2#(Bit#(15),Bit#(13))) interMvDiff <- mkFIFO;
193 
   Reg#(Bit#(5)) interNewestMv <- mkReg(0);
194 
 
195 
   Reg#(Bit#(2)) interIPStepCount <- mkReg(0);
196 
   Reg#(Bit#(2)) interIPMbPartNum <- mkReg(0);
197 
   Reg#(Bit#(2)) interIPSubMbPartNum <- mkReg(0);
198 
 
199 
   Reg#(Bit#(PicWidthSz)) interCurrMbDiff <- mkReg(0);
200 
 
201 
   Reg#(Vector#(4,Bool)) interTopNonZeroTransCoeff <- mkRegU();
202 
   Reg#(Vector#(4,Bool)) interLeftNonZeroTransCoeff <- mkRegU();
203 
   FIFO#(Tuple2#(Bit#(2),Bit#(2))) interBSfifo <- mkSizedFIFO(32);
204 
   Reg#(Bool) interBSoutput <- mkReg(True);
205 
   FIFO#(InterBlockMv) interOutBlockMvfifo <- mkSizedFIFO(8);
206 
 
207 
 
208 
   //Intra state
209 
   Reg#(IntraState)     intrastate      <- mkReg(Start);
210 
   Reg#(Bit#(1))        intraChromaFlag <- mkReg(0);
211 
   FIFO#(MemReq#(TAdd#(PicWidthSz,2),68)) intraMemReqQ  <- mkFIFO;
212 
   Reg#(MemReq#(TAdd#(PicWidthSz,2),68)) intraMemReqQdelay <- mkRegU;
213 
   FIFO#(MemResp#(68))  intraMemRespQ <- mkFIFO;
214 
   Reg#(Vector#(4,Bit#(4))) intra4x4typeLeft <- mkRegU();//15=unavailable, 14=inter-MB, 13=intra-non-4x4
215 
   Reg#(Vector#(4,Bit#(4))) intra4x4typeTop  <- mkRegU();//15=unavailable, 14=inter-MB, 13=intra-non-4x4
216 
   Reg#(Bit#(1)) ppsconstrained_intra_pred_flag <- mkReg(0);
217 
   Reg#(Vector#(4,Bit#(40))) intraLeftVal <- mkRegU();
218 
   Reg#(Vector#(9,Bit#(8))) intraLeftValChroma0 <- mkRegU();
219 
   Reg#(Vector#(9,Bit#(8))) intraLeftValChroma1 <- mkRegU();
220 
   Reg#(Vector#(5,Bit#(32))) intraTopVal <- mkRegU();
221 
   Reg#(Vector#(4,Bit#(16))) intraTopValChroma0 <- mkRegU();
222 
   Reg#(Vector#(4,Bit#(16))) intraTopValChroma1 <- mkRegU();
223 
   Reg#(Bit#(32)) intraLeftValNext <- mkReg(0);
224 
   Reg#(Bit#(2)) intra16x16_pred_mode <- mkReg(0);
225 
   FIFO#(Bit#(4)) rem_intra4x4_pred_mode <- mkSizedFIFO(16);
226 
   FIFO#(Bit#(2)) intra_chroma_pred_mode <- mkFIFO;
227 
   Reg#(Bit#(4)) cur_intra4x4_pred_mode <- mkReg(0);
228 
   Reg#(Bit#(1)) intraChromaTopAvailable <- mkReg(0);
229 
   Reg#(Bit#(1)) intraChromaLeftAvailable <- mkReg(0);
230 
 
231 
   Reg#(Bit#(3)) intraReqCount <- mkReg(0);
232 
   Reg#(Bit#(3)) intraRespCount <- mkReg(0);
233 
   Reg#(Bit#(4)) intraStepCount <- mkReg(0);
234 
   Reg#(Bit#(13)) intraSumA <-  mkReg(0);
235 
   Reg#(Bit#(15)) intraSumB <-  mkReg(0);
236 
   Reg#(Bit#(15)) intraSumC <-  mkReg(0);
237 
 
238 
 
239 
 
240 
   //-----------------------------------------------------------
241 
   // Rules
242 
 
243 
   //////////////////////////////////////////////////////////////////////////////
244 
//   rule stateMonitor ( True );
245 
//      if(predictedfifo.notEmpty())
246 
//       $display( "TRACE Prediction: stateMonitor predictedfifo.first() %0d", predictedfifo.first());////////////////////
247 
//      if(infifo.first() matches tagged ITBresidual .xdata)
248 
//       $display( "TRACE Prediction: stateMonitor infifo.first() %0d", xdata);////////////////////
249 
//      if(infifo.first() matches tagged ITBresidual .xdata)
250 
//       $display( "TRACE Prediction: stateMonitor outBlockNum outPixelNum outChromaFlag %0d %0d", outBlockNum, outPixelNum, outChromaFlag);////////////////////
251 
//   endrule
252 
   //////////////////////////////////////////////////////////////////////////////
253 
 
254 
 
255 
   rule checkFIFO ( True );
256 
      $display( "Trace Prediction: checkFIFO %h", infifo_ITB.first() );
257 
   endrule
258 
 
259 
   rule passing ( passFlag && !outstatefifo.notEmpty() && currMbHor
260 
      $display( "Trace Prediction: passing infifo packed %h", pack(infifo.first()));
261 
      case (infifo.first()) matches
262 
         tagged NewUnit . xdata :
263 
            begin
264 
               infifo.deq();
265 
               outfifo.enq(infifo.first());
266 
               $display("ccl4newunit");
267 
               $display("ccl4rbspbyte %h", xdata);
268 
            end
269 
         tagged SPSpic_width_in_mbs .xdata :
270 
            begin
271 
               infifo.deq();
272 
               outfifo.enq(infifo.first());
273 
               picWidth <= xdata;
274 
               interpolator.setPicWidth(xdata);
275 
            end
276 
         tagged SPSpic_height_in_map_units .xdata :
277 
            begin
278 
               infifo.deq();
279 
               outfifo.enq(infifo.first());
280 
               picHeight <= xdata;
281 
               interpolator.setPicHeight(xdata);
282 
            end
283 
         tagged PPSconstrained_intra_pred_flag .xdata :
284 
            begin
285 
               infifo.deq();
286 
               ////outfifo.enq(infifo.first());
287 
               ppsconstrained_intra_pred_flag <= xdata;
288 
            end
289 
         tagged SHfirst_mb_in_slice .xdata :
290 
            begin
291 
               infifo.deq();
292 
               outfifo.enq(infifo.first());
293 
               firstMb   <= xdata;
294 
               currMb    <= xdata;
295 
               currMbHor <= xdata;
296 
               currMbVer <= 0;
297 
               intra4x4typeLeft <= replicate(15);
298 
               interTopLeftVal <= replicate(NotInter 0);
299 
               if(xdata==0)
300 
                  interLeftVal <= replicate(NotInter 0);
301 
               outFirstQPFlag <= True;
302 
            end
303 
         tagged SDmb_skip_run .xdata : passFlag <= False;
304 
         tagged SDMmbtype .xdata : passFlag <= False;
305 
         tagged EndOfFile :
306 
            begin
307 
               infifo.deq();
308 
               outfifo.enq(infifo.first());
309 
               $display( "INFO Prediction: EndOfFile reached" );
310 
               //$finish(0);////////////////////////////////
311 
            end
312 
         default:
313 
            begin
314 
               infifo.deq();
315 
               outfifo.enq(infifo.first());
316 
            end
317 
      endcase
318 
   endrule
319 
 
320 
 
321 
   rule inputing ( !passFlag );
322 
      $display( "Trace Prediction: inputing infifo packed %h", pack(infifo.first()));
323 
      case (infifo.first()) matches
324 
         tagged SDmb_skip_run .xdata :
325 
            begin
326 
               if(interstate==Start && intrastate==Start)
327 
                  begin
328 
                     if(interPskipCount < xdata)
329 
                        begin
330 
                           if(!outstatefifo.notEmpty() || interCurrMbDiff
331 
                              begin
332 
                                 $display( "Trace Prediction: passing SDmb_skip_run %0d", xdata);
333 
                                 outstatefifo.enq(Inter);
334 
                                 interstate <= InterPskip;
335 
                                 interReqCount <= 1;
336 
                                 interRespCount <= 1;
337 
                                 intra4x4typeLeft <= replicate(14);
338 
                                 intra4x4typeTop <= replicate(14);
339 
                                 interTopLeftVal <= update(interTopLeftVal , 0, (NotInter 0));
340 
                                 interTopVal <= replicate(NotInter 0);
341 
                                 interPskipCount <= interPskipCount+1;
342 
                                 interNewestMv <= 0;
343 
                                 interRefIdxVector <= replicate(0);
344 
                                 interCurrMbDiff <= interCurrMbDiff+1;
345 
                                 nextoutputfifo.enq(SkipMB);
346 
                              end
347 
                           else
348 
                              donotfire.doNotFire();
349 
                        end
350 
                     else
351 
                        begin
352 
                           $display( "Trace Prediction: passing no SDmb_skip_run");
353 
                           interPskipCount <= 0;
354 
                           infifo.deq();
355 
                        end
356 
                  end
357 
               else
358 
                  donotfire.doNotFire();
359 
            end
360 
         tagged SDMmbtype .xdata :
361 
            begin
362 
               if(interstate==Start && intrastate==Start)//not necessary (just need to keep inter from feeding predictedfifo or change intra state until intrastate==Start)
363 
                  begin
364 
                     infifo.deq();
365 
                     $display( "INFO Prediction: SDMmbtype %0d", xdata);
366 
                     if(mbPartPredMode(xdata,0)==Intra_16x16)
367 
                        begin
368 
                           if(!outstatefifo.notEmpty())
369 
                              begin
370 
                                 outstatefifo.enq(Intra);
371 
                                 intrastate <= Intra16x16;
372 
                                 if(xdata matches tagged I_16x16 {intra16x16PredMode:.tempv1, codedBlockPatternChroma:.tempv2, codedBlockPatternLuma:.tempv3})
373 
                                    intra16x16_pred_mode <= tempv1;
374 
                                 else
375 
                                    $display( "ERROR Prediction: MacroblockLayer 5 sdmmbtype not I_16x16" );
376 
                                 intraReqCount <= 1;
377 
                                 intraRespCount <= 1;
378 
                                 interTopLeftVal <= replicate(NotInter 1);
379 
                                 interLeftVal <= replicate(NotInter 1);
380 
                                 interTopVal <= replicate(NotInter 1);
381 
                              end
382 
                           else
383 
                              donotfire.doNotFire();
384 
                        end
385 
                     else if(xdata==I_NxN)
386 
                        begin
387 
                           if(!outstatefifo.notEmpty())
388 
                              begin
389 
                                 outstatefifo.enq(Intra4x4);
390 
                                 intrastate <= Intra4x4;
391 
                                 intraReqCount <= 1;
392 
                                 intraRespCount <= 1;
393 
                                 interTopLeftVal <= replicate(NotInter 1);
394 
                                 interLeftVal <= replicate(NotInter 1);
395 
                                 interTopVal <= replicate(NotInter 1);
396 
                              end
397 
                           else
398 
                              donotfire.doNotFire();
399 
                        end
400 
                     else if(xdata==I_PCM)
401 
                        begin
402 
                           $display( "ERROR Prediction: I_PCM not implemented yet");
403 
                           $finish;////////////////////////////////////////////////////////////////////////////////////////
404 
                           intra4x4typeLeft <= replicate(13);
405 
                           intra4x4typeTop <= replicate(13);
406 
                           interTopLeftVal <= replicate(NotInter 1);
407 
                           interLeftVal <= replicate(NotInter 1);
408 
                           interTopVal <= replicate(NotInter 1);
409 
                        end
410 
                     else
411 
                        begin
412 
                           if(!outstatefifo.notEmpty() || interCurrMbDiff
413 
                              begin
414 
                                 outstatefifo.enq(Inter);
415 
                                 case(xdata)
416 
                                    P_L0_16x16: interstate <= InterP16x16;
417 
                                    P_L0_L0_16x8: interstate <= InterP16x8;
418 
                                    P_L0_L0_8x16: interstate <= InterP8x16;
419 
                                    P_8x8: interstate <= InterP8x8;
420 
                                    P_8x8ref0: interstate <= InterP8x8ref0;
421 
                                    default: $display( "ERROR Prediction: passing SDMmbtype inter prediction unknown mbtype");
422 
                                 endcase
423 
                                 interReqCount <= 1;
424 
                                 interRespCount <= 1;
425 
                                 intra4x4typeLeft <= replicate(14);/////////////////////////////////////////////////////////////////////////////
426 
                                 intra4x4typeTop <= replicate(14);
427 
                                 interTopLeftVal <= update(interTopLeftVal , 0, (NotInter 0));
428 
                                 interTopVal <= replicate(NotInter 0);
429 
                                 interNewestMv <= 0;
430 
                                 interRefIdxVector <= replicate(0);
431 
                                 nextoutputfifo.enq(NonSkipMB);
432 
                              end
433 
                           else
434 
                              donotfire.doNotFire();
435 
                        end
436 
                     interCurrMbDiff <= interCurrMbDiff+1;
437 
                  end
438 
               else
439 
                  donotfire.doNotFire();
440 
            end
441 
         tagged SDMMrem_intra4x4_pred_mode .xdata :
442 
            begin
443 
               infifo.deq();
444 
               ////outfifo.enq(infifo.first());
445 
               rem_intra4x4_pred_mode.enq(xdata);
446 
            end
447 
         tagged SDMMintra_chroma_pred_mode .xdata :
448 
            begin
449 
               infifo.deq();
450 
               ////outfifo.enq(infifo.first());
451 
               intra_chroma_pred_mode.enq(xdata);
452 
            end
453 
         tagged SDMMref_idx_l0 .xdata :
454 
            begin
455 
               infifo.deq();
456 
               ////outfifo.enq(infifo.first());
457 
               interRefIdxVector <= update(interRefIdxVector,interPassingCount,xdata[3:0]);
458 
               if(interstate==InterP16x16 || interPassingCount==1)
459 
                  interPassingCount <= 0;
460 
               else
461 
                  interPassingCount <= interPassingCount+1;
462 
            end
463 
         tagged SDMMmvd_l0 .xdata :
464 
            begin
465 
               infifo.deq();
466 
               ////outfifo.enq(infifo.first());
467 
               if(interPassingCount==1)
468 
                  begin
469 
                     Bit#(13) interMvDiffTemp2 = truncate(xdata);
470 
                     interMvDiff.enq(tuple2(interMvDiffTemp,interMvDiffTemp2));
471 
                     interPassingCount <= 0;
472 
                  end
473 
               else
474 
                  begin
475 
                     interMvDiffTemp <= truncate(xdata);
476 
                     interPassingCount <= interPassingCount+1;
477 
                  end
478 
            end
479 
         tagged SDMSsub_mb_type .xdata :
480 
            begin
481 
               infifo.deq();
482 
               ////outfifo.enq(infifo.first());
483 
               interSubMbTypeVector <= update(interSubMbTypeVector,interPassingCount,xdata);
484 
               interPassingCount <= interPassingCount+1;
485 
            end
486 
         tagged SDMSref_idx_l0 .xdata :
487 
            begin
488 
               infifo.deq();
489 
               ////outfifo.enq(infifo.first());
490 
               interRefIdxVector <= update(interRefIdxVector,interPassingCount,xdata[3:0]);
491 
               interPassingCount <= interPassingCount+1;
492 
            end
493 
         tagged SDMSmvd_l0 .xdata :
494 
            begin
495 
               infifo.deq();
496 
               ////outfifo.enq(infifo.first());
497 
               if(interPassingCount==1)
498 
                  begin
499 
                     Bit#(13) interMvDiffTemp2 = truncate(xdata);
500 
                     interMvDiff.enq(tuple2(interMvDiffTemp,interMvDiffTemp2));
501 
                     interPassingCount <= 0;
502 
                  end
503 
               else
504 
                  begin
505 
                     interMvDiffTemp <= truncate(xdata);
506 
                     interPassingCount <= interPassingCount+1;
507 
                  end
508 
            end
509 
         default: passFlag <= True;
510 
      endcase
511 
   endrule
512 
 
513 
 
514 
   rule outputing ( currMbHor
515 
      Bit#(1) outputFlag = 0;
516 
      Vector#(4,Bit#(8)) outputVector = replicate(0);
517 
      Bit#(2) blockHor = {outBlockNum[2],outBlockNum[0]};
518 
      Bit#(2) blockVer = {outBlockNum[3],outBlockNum[1]};
519 
      Bit#(2) pixelVer = {outPixelNum[3],outPixelNum[2]};
520 
      Bit#(4) totalVer = {blockVer,pixelVer};
521 
      //$display( "Trace Prediction: outputing" );
522 
      if(outFirstQPFlag)
523 
         begin
524 
            if(infifo_ITB.first() matches tagged IBTmb_qp .xdata)
525 
               begin
526 
                  infifo_ITB.deq();
527 
                  outfifo.enq(IBTmb_qp {qpy:xdata.qpy,qpc:xdata.qpc});
528 
                  outFirstQPFlag <= False;
529 
                  $display( "Trace Prediction: outputing outFirstQP %h %h %h", outBlockNum, outPixelNum, xdata);
530 
               end
531 
            else
532 
               $display( "ERROR Prediction: outputing unexpected infifo_ITB.first()");
533 
         end
534 
      else if(nextoutputfifo.first() == SkipMB)
535 
         begin
536 
            if(interBSoutput && outChromaFlag==0 && outPixelNum==0)
537 
               begin
538 
                  interBSoutput <= False;
539 
                  interBSfifo.deq();
540 
                  Bit#(2) tempHorBS = tpl_1(interBSfifo.first());
541 
                  Bit#(2) tempVerBS = tpl_2(interBSfifo.first());
542 
                  Bit#(3) horBS = (tempHorBS==3 ? 4 : (interLeftNonZeroTransCoeff[blockVer] ? 2 : zeroExtend(tempHorBS)));
543 
                  Bit#(3) verBS = (tempVerBS==3 ? 4 : (interTopNonZeroTransCoeff[blockHor]&&blockVer!=0 ? 2 : zeroExtend(tempVerBS)));
544 
                  outfifo.enq(PBbS {bShor:horBS,bSver:verBS});
545 
                  interLeftNonZeroTransCoeff <= update(interLeftNonZeroTransCoeff, blockVer, False);
546 
                  interTopNonZeroTransCoeff <= update(interTopNonZeroTransCoeff, blockHor, False);
547 
                  $display( "Trace Prediction: outputing SkipMB bS %h %h %h %h", outBlockNum, outPixelNum, currMbHor, currMbVer);
548 
               end
549 
            else
550 
               begin
551 
                  interBSoutput <= True;
552 
                  outputVector = predictedfifo.first();
553 
                  outfifo.enq(PBoutput outputVector);
554 
                  outputFlag = 1;
555 
                  predictedfifo.deq();
556 
                  $display( "Trace Prediction: outputing SkipMB out %h %h %h", outBlockNum, outPixelNum, outputVector);
557 
               end
558 
         end
559 
      else
560 
         begin
561 
            case ( infifo_ITB.first() ) matches
562 
               tagged IBTmb_qp .xdata :
563 
                  begin
564 
                     infifo_ITB.deq();
565 
                     outfifo.enq(IBTmb_qp {qpy:xdata.qpy,qpc:xdata.qpc});
566 
                     outFirstQPFlag <= False;
567 
                     $display( "Trace Prediction: outputing ITBmb_qp %h %h %h", outBlockNum, outPixelNum, xdata);
568 
                  end
569 
               tagged ITBresidual .xdata :
570 
                  begin
571 
                     if(interBSoutput && outChromaFlag==0 && outPixelNum==0)
572 
                        begin
573 
                           interBSoutput <= False;
574 
                           if(outstatefifo.first() != Inter)
575 
                              outfifo.enq(PBbS {bShor:(blockHor==0 ? 4 : 3),bSver:(blockVer==0 ? 4 : 3)});
576 
                           else
577 
                              begin
578 
                                 interBSfifo.deq();
579 
                                 Bit#(2) tempHorBS = tpl_1(interBSfifo.first());
580 
                                 Bit#(2) tempVerBS = tpl_2(interBSfifo.first());
581 
                                 Bit#(3) horBS = (tempHorBS==3 ? 4 : 2);
582 
                                 Bit#(3) verBS = (tempVerBS==3 ? 4 : 2);
583 
                                 outfifo.enq(PBbS {bShor:horBS,bSver:verBS});
584 
                              end
585 
                           interLeftNonZeroTransCoeff <= update(interLeftNonZeroTransCoeff, blockVer, True);
586 
                           interTopNonZeroTransCoeff <= update(interTopNonZeroTransCoeff, blockHor, True);
587 
                           $display( "Trace Prediction: outputing ITBresidual bS %h %h %h %h %h", outChromaFlag, outBlockNum, outPixelNum, currMbHor, currMbVer);
588 
                        end
589 
                     else
590 
                        begin
591 
                           interBSoutput <= True;
592 
                           Bit#(11) tempOutputValue = 0;
593 
                           for(Integer ii=0; ii<4; ii=ii+1)
594 
                              begin
595 
                                 tempOutputValue = signExtend(xdata[ii]) + zeroExtend((predictedfifo.first())[ii]);
596 
                                 if(tempOutputValue[10]==1)
597 
                                    outputVector[ii] = 0;
598 
                                 else if(tempOutputValue[9:0] > 255)
599 
                                    outputVector[ii] = 255;
600 
                                 else
601 
                                    outputVector[ii] = tempOutputValue[7:0];
602 
                              end
603 
                           outfifo.enq(PBoutput outputVector);
604 
                           infifo_ITB.deq();
605 
                           predictedfifo.deq();
606 
                           outputFlag = 1;
607 
                           $display( "Trace Prediction: outputing ITBresidual out %h %h %h %h %h %h", outChromaFlag, outBlockNum, outPixelNum, predictedfifo.first(), xdata, outputVector);
608 
                        end
609 
                  end
610 
               tagged ITBcoeffLevelZeros :
611 
                  begin
612 
                     if(interBSoutput && outChromaFlag==0 && outPixelNum==0)
613 
                        begin
614 
                           interBSoutput <= False;
615 
                           if(outstatefifo.first() != Inter)
616 
                              outfifo.enq(PBbS {bShor:(blockHor==0 ? 4 : 3),bSver:(blockVer==0 ? 4 : 3)});
617 
                           else
618 
                              begin
619 
                                 interBSfifo.deq();
620 
                                 Bit#(2) tempHorBS = tpl_1(interBSfifo.first());
621 
                                 Bit#(2) tempVerBS = tpl_2(interBSfifo.first());
622 
                                 Bit#(3) horBS = (tempHorBS==3 ? 4 : (interLeftNonZeroTransCoeff[blockVer] ? 2 : zeroExtend(tempHorBS)));
623 
                                 Bit#(3) verBS = (tempVerBS==3 ? 4 : (interTopNonZeroTransCoeff[blockHor]&&blockVer!=0 ? 2 : zeroExtend(tempVerBS)));
624 
                                 outfifo.enq(PBbS {bShor:horBS,bSver:verBS});
625 
                              end
626 
                           interLeftNonZeroTransCoeff <= update(interLeftNonZeroTransCoeff, blockVer, False);
627 
                           interTopNonZeroTransCoeff <= update(interTopNonZeroTransCoeff, blockHor, False);
628 
                           $display( "Trace Prediction: outputing ITBcoeffLevelZeros bS %h %h %h %h %h", outChromaFlag, outBlockNum, outPixelNum, currMbHor, currMbVer);
629 
                        end
630 
                     else
631 
                        begin
632 
                           interBSoutput <= True;
633 
                           if(outPixelNum == 12)
634 
                              infifo_ITB.deq();
635 
                           outputVector = predictedfifo.first();
636 
                           outfifo.enq(PBoutput outputVector);
637 
                           outputFlag = 1;
638 
                           predictedfifo.deq();
639 
                           $display( "Trace Prediction: outputing ITBcoeffLevelZeros out %h %h %h %h %h", outChromaFlag, outBlockNum, outPixelNum, predictedfifo.first(), outputVector);
640 
                        end
641 
                  end
642 
               default: $display( "ERROR Prediction: outputing unknown infifo_ITB input" );
643 
            endcase
644 
         end
645 
 
646 
      if(outputFlag == 1)
647 
         begin
648 
            $display("ccl4PBoutput %0d", outputVector[0]);
649 
            $display("ccl4PBoutput %0d", outputVector[1]);
650 
            $display("ccl4PBoutput %0d", outputVector[2]);
651 
            $display("ccl4PBoutput %0d", outputVector[3]);
652 
 
653 
            if(outBlockNum==0 && pixelVer==0 && outChromaFlag==0 && currMb!=firstMb && picWidth>1)
654 
               begin
655 
                  intraMemReqQ.enq(intraMemReqQdelay);
656 
                  interMemReqQ.enq(interMemReqQdelay);
657 
                  //$display( "TRACE Prediction: passing storing addr data");//////////////////
658 
               end
659 
 
660 
            if(blockHor==3 || (blockHor[0]==1 && outChromaFlag==1) || (outstatefifo.first()==Intra4x4 && outChromaFlag==0))
661 
               begin
662 
                  if(outChromaFlag==0)
663 
                     begin
664 
                        Bit#(32) intraLeftValNextTemp = intraLeftValNext;
665 
                        if(totalVer==0 || (outstatefifo.first()==Intra4x4 && pixelVer==0))
666 
                           begin
667 
                              Bit#(32) tempValSet = select(intraTopVal,zeroExtend(blockHor));
668 
                              intraLeftValNextTemp = zeroExtend(tempValSet[31:24]);
669 
                           end
670 
                        case(pixelVer)
671 
                           0:intraLeftValNext <= {intraLeftValNextTemp[31:16],outputVector[3],intraLeftValNextTemp[7:0]};
672 
                           1:intraLeftValNext <= {intraLeftValNextTemp[31:24],outputVector[3],intraLeftValNextTemp[15:0]};
673 
                           2:intraLeftValNext <= {outputVector[3],intraLeftValNextTemp[23:0]};
674 
                           3:
675 
                           begin
676 
                              intraLeftVal <= update(intraLeftVal,blockVer,{outputVector[3],intraLeftValNextTemp});
677 
                              intraLeftValNext <= zeroExtend(outputVector[3]);
678 
                              if(outstatefifo.first()==Intra4x4)
679 
                                 intra4x4typeLeft <= update(intra4x4typeLeft,blockVer,cur_intra4x4_pred_mode);
680 
                              else if(outstatefifo.first()==Intra)
681 
                                 intra4x4typeLeft <= update(intra4x4typeLeft,blockVer,13);
682 
                              else
683 
                                 intra4x4typeLeft <= update(intra4x4typeLeft,blockVer,14);
684 
                           end
685 
                        endcase
686 
                     end
687 
                  else
688 
                     begin
689 
                        if(outBlockNum[2]==0)
690 
                           intraLeftValChroma0 <= update(intraLeftValChroma0,totalVer+1,outputVector[3]);
691 
                        else
692 
                           intraLeftValChroma1 <= update(intraLeftValChroma1,totalVer+1,outputVector[3]);
693 
                     end
694 
               end
695 
 
696 
            if(pixelVer==3 && (blockVer==3 || (blockVer[0]==1 && outChromaFlag==1) || (outstatefifo.first()==Intra4x4 && outChromaFlag==0)))
697 
               begin
698 
                  if(outChromaFlag==0)
699 
                     begin
700 
                        intraTopVal <= update(intraTopVal,zeroExtend(blockHor),{outputVector[3],outputVector[2],outputVector[1],outputVector[0]});
701 
                        if(outstatefifo.first()==Intra4x4)
702 
                           intra4x4typeTop <= update(intra4x4typeTop,blockHor,cur_intra4x4_pred_mode);
703 
                        else if(outstatefifo.first()==Intra)
704 
                           intra4x4typeTop <= update(intra4x4typeTop,blockHor,13);
705 
                        else
706 
                           intra4x4typeTop <= update(intra4x4typeTop,blockHor,14);
707 
                     end
708 
                  else
709 
                     begin
710 
                        if(outBlockNum[2]==0)
711 
                           begin
712 
                              Vector#(4,Bit#(16)) intraTopValChroma0Next = intraTopValChroma0;
713 
                              intraTopValChroma0Next[{blockHor[0],1'b0}] = {outputVector[1],outputVector[0]};
714 
                              intraTopValChroma0Next[{blockHor[0],1'b1}] = {outputVector[3],outputVector[2]};
715 
                              intraTopValChroma0 <= intraTopValChroma0Next;
716 
                           end
717 
                        else
718 
                           begin
719 
                              Vector#(4,Bit#(16)) intraTopValChroma1Next = intraTopValChroma1;
720 
                              intraTopValChroma1Next[{blockHor[0],1'b0}] = {outputVector[1],outputVector[0]};
721 
                              intraTopValChroma1Next[{blockHor[0],1'b1}] = {outputVector[3],outputVector[2]};
722 
                              intraTopValChroma1 <= intraTopValChroma1Next;
723 
                           end
724 
                     end
725 
               end
726 
 
727 
            if(outChromaFlag==1 && outBlockNum==7)
728 
               begin
729 
                  Bit#(PicWidthSz) tempStoreAddr = truncate(currMbHor);
730 
                  InterBlockMv outBlockMv = interOutBlockMvfifo.first();
731 
                  if(outBlockMv matches tagged BlockMv .bdata)
732 
                     begin
733 
                        outBlockMv = (BlockMv {refIdx:bdata.refIdx,mvhor:bdata.mvhor,mvver:bdata.mvver,nonZeroTransCoeff:(interTopNonZeroTransCoeff[pixelVer]?1:0)});
734 
                        interOutBlockMvfifo.deq();
735 
                     end
736 
                  else if(pixelVer==3)
737 
                     interOutBlockMvfifo.deq();
738 
                  if(pixelVer==3 && picWidth>1)
739 
                     interMemReqQdelay <= StoreReq {addr:{tempStoreAddr,pixelVer},data:pack(outBlockMv)};
740 
                  else
741 
                     interMemReqQ.enq(StoreReq {addr:{tempStoreAddr,pixelVer},data:pack(outBlockMv)});
742 
                  if(pixelVer>0)
743 
                     begin
744 
                        Bit#(4)  intra4x4typeTopStore = ((outstatefifo.first()==Inter) ? 14 : ((outstatefifo.first()!=Intra4x4) ? 13: intra4x4typeTop[(pixelVer-1)]));
745 
                        Bit#(32) intraTopValStore = intraTopVal[(pixelVer-1)];
746 
                        Bit#(16) intraTopValChroma0Store = intraTopValChroma0[(pixelVer-1)];
747 
                        Bit#(16) intraTopValChroma1Store = (pixelVer<3 ? intraTopValChroma1[(pixelVer-1)] : {outputVector[1],outputVector[0]});
748 
                        Bit#(68) intraStore = {intra4x4typeTopStore,intraTopValChroma1Store,intraTopValChroma0Store,intraTopValStore};
749 
                        intraMemReqQ.enq(StoreReq {addr:{tempStoreAddr,(pixelVer-1)},data:intraStore});
750 
                        if(pixelVer==3)
751 
                           begin
752 
                              intra4x4typeTopStore = ((outstatefifo.first()==Inter) ? 14 : ((outstatefifo.first()!=Intra4x4) ? 13: intra4x4typeTop[3]));
753 
                              intraTopValStore = intraTopVal[3];
754 
                              intraTopValChroma0Store = intraTopValChroma0[3];
755 
                              intraTopValChroma1Store = {outputVector[3],outputVector[2]};
756 
                              intraStore = {intra4x4typeTopStore,intraTopValChroma1Store,intraTopValChroma0Store,intraTopValStore};
757 
                              intraMemReqQdelay <= StoreReq {addr:{tempStoreAddr,2'b11},data:intraStore};
758 
                           end
759 
                     end
760 
               end
761 
            outPixelNum <= outPixelNum+4;
762 
            if(outPixelNum == 12)
763 
               begin
764 
                  if(outChromaFlag==0)
765 
                     begin
766 
                        outBlockNum <= outBlockNum+1;
767 
                        if(outBlockNum == 15)
768 
                           outChromaFlag <= 1;
769 
                        if(nextoutputfifo.first() == Intra4x4)
770 
                           nextoutputfifo.deq();
771 
                     end
772 
                  else
773 
                     begin
774 
                        if(outBlockNum == 7)
775 
                           begin
776 
                              outBlockNum <= 0;
777 
                              outChromaFlag <= 0;
778 
                              currMb <= currMb+1;
779 
                              currMbHor <= currMbHor+1;
780 
                              interCurrMbDiff <= interCurrMbDiff-1;
781 
                              outstatefifo.deq;
782 
                              intrastate <= Start;
783 
                              if(truncate(currMbHor)==picWidth-1 && currMbVer==picHeight-1)
784 
                                 interpolator.endOfFrame();
785 
                              nextoutputfifo.deq();
786 
                           end
787 
                        else
788 
                           outBlockNum <= outBlockNum+1;
789 
                     end
790 
               end
791 
         end
792 
   endrule
793 
 
794 
 
795 
   rule currMbHorUpdate( !(currMbHor
796 
      Bit#(PicAreaSz) temp = zeroExtend(picWidth);
797 
      if((currMbHor >> 3) >= temp)
798 
         begin
799 
            currMbHor <= currMbHor - (temp << 3);
800 
            currMbVer <= currMbVer + 8;
801 
         end
802 
      else
803 
         begin
804 
            currMbHor <= currMbHor - temp;
805 
            currMbVer <= currMbVer + 1;
806 
         end
807 
      //$display( "Trace Prediction: currMbHorUpdate %h %h", currMbHor, currMbVer);
808 
   endrule
809 
 
810 
 
811 
   // inter prediction rules
812 
 
813 
   rule interSendReq ( interReqCount>0 && currMbHor
814 
      Bit#(PicAreaSz) currMbHorTemp = currMbHor+zeroExtend(interCurrMbDiff)-1;
815 
      Bit#(PicAreaSz) currMbTemp = currMb+zeroExtend(interCurrMbDiff)-1;
816 
      if( currMbHorTemp >= zeroExtend(picWidth) )
817 
         currMbHorTemp = currMbHorTemp-zeroExtend(picWidth);
818 
      Bit#(PicWidthSz) temp2 = truncate(currMbHorTemp);
819 
      Bit#(TAdd#(PicWidthSz,2)) temp = 0;
820 
      Bool noMoreReq = False;
821 
      if( currMbTemp < zeroExtend(picWidth) )
822 
         noMoreReq = True;
823 
      else
824 
         begin
825 
            if(interReqCount<5)
826 
               begin
827 
                  Bit#(2) temp3 = truncate(interReqCount-1);
828 
                  temp = {temp2,temp3};
829 
               end
830 
            else if(interReqCount==5)
831 
               begin
832 
                  if((currMbHorTemp+1)
833 
                     temp = {(temp2+1),2'b00};
834 
                  else if(currMbHorTemp>0 && currMbTemp-firstMb>zeroExtend(picWidth))
835 
                     temp = {(temp2-1),2'b11};
836 
                  else
837 
                     noMoreReq = True;
838 
               end
839 
            else if(interReqCount==6)
840 
               begin
841 
                  if((currMbHorTemp+1)0 && currMbTemp-firstMb>zeroExtend(picWidth))
842 
                     temp = {(temp2-1),2'b11};
843 
                  else
844 
                     noMoreReq = True;
845 
               end
846 
            else
847 
               noMoreReq = True;
848 
         end
849 
      if(!noMoreReq)
850 
         begin
851 
            interMemReqQ.enq(LoadReq temp);
852 
            interReqCount <= interReqCount+1;
853 
            //$display( "TRACE Prediction: interSendReq addr %0d",temp);///////////////////////
854 
         end
855 
      else
856 
         interReqCount <= 0;
857 
      $display( "Trace Prediction: interSendReq %h %h %h", interstate, interReqCount, temp);
858 
   endrule
859 
 
860 
 
861 
   rule interReceiveNoResp ( interRespCount>0 && currMbHor
862 
      Bit#(PicAreaSz) currMbHorTemp = currMbHor+zeroExtend(interCurrMbDiff)-1;
863 
      if( currMbHorTemp >= zeroExtend(picWidth) )
864 
         currMbHorTemp = currMbHorTemp-zeroExtend(picWidth);
865 
      interRespCount <= 0;
866 
      interStepCount <= 1;
867 
      interIPStepCount <= 1;
868 
      if(currMbHorTemp == 0)
869 
         begin
870 
            interLeftVal <= replicate(NotInter 0);
871 
            interTopLeftVal <= replicate(NotInter 0);
872 
         end
873 
      $display( "Trace Prediction: interReceiveNoResp %h %h", interstate, interRespCount);
874 
   endrule
875 
 
876 
 
877 
   rule interReceiveResp ( interRespCount>0 && interRespCount<7 && currMbHor
878 
      Bit#(PicAreaSz) currMbHorTemp = currMbHor+zeroExtend(interCurrMbDiff)-1;
879 
      Bit#(PicAreaSz) currMbTemp = currMb+zeroExtend(interCurrMbDiff)-1;
880 
      if( currMbHorTemp >= zeroExtend(picWidth) )
881 
         currMbHorTemp = currMbHorTemp-zeroExtend(picWidth);
882 
      Bool noMoreResp = False;
883 
      Bit#(2) temp2bit = 0;
884 
      InterBlockMv unpackedData = unpack(data);
885 
      Vector#(5,InterBlockMv) interTopValNext = interTopVal;
886 
      Vector#(4,InterBlockMv) interTopLeftValNext = interTopLeftVal;
887 
      if(interRespCount<5)
888 
         begin
889 
            temp2bit = truncate(interRespCount-1);
890 
            interTopValNext[temp2bit] = unpackedData;
891 
            if((interRespCount==4 || (interRespCount==1 && (interstate==InterPskip || interstate==InterP16x16 || interstate==InterP16x8)))
892 
               && (!((currMbHorTemp+1)0 && currMbTemp-firstMb>zeroExtend(picWidth))))
893 
               noMoreResp = True;
894 
         end
895 
      else if(interRespCount==5)
896 
         begin
897 
            if((currMbHorTemp+1)
898 
               begin
899 
                  interTopValNext[4] = unpackedData;
900 
                  if(!(currMbHorTemp>0 && currMbTemp-firstMb>zeroExtend(picWidth)))
901 
                     noMoreResp = True;
902 
               end
903 
            else
904 
               begin
905 
                  interTopLeftValNext[0] = unpackedData;
906 
                  noMoreResp = True;
907 
               end
908 
         end
909 
      else
910 
         begin
911 
            interTopLeftValNext[0] = unpackedData;
912 
            noMoreResp = True;
913 
         end
914 
      interMemRespQ.deq();
915 
      //$display( "TRACE Prediction: interReceiveResp data %h",data);///////////////////////
916 
      if(!noMoreResp)
917 
         interRespCount <= interRespCount+1;
918 
      else
919 
         begin
920 
            interRespCount <= 0;
921 
            interStepCount <= 1;
922 
            interIPStepCount <= 1;
923 
            if(currMbHorTemp == 0)
924 
               begin
925 
                  interLeftVal <= replicate(NotInter 0);
926 
                  interTopLeftValNext = replicate(NotInter 0);
927 
               end
928 
         end
929 
      interTopVal <= interTopValNext;
930 
      interTopLeftVal <= interTopLeftValNext;
931 
      $display( "Trace Prediction: interReceiveResp %h %h %h", interstate, interRespCount, data);
932 
   endrule
933 
 
934 
 
935 
   rule interProcessStep ( interStepCount>0 && currMbHor
936 
      Bit#(PicAreaSz) currMbTemp = currMb+zeroExtend(interCurrMbDiff)-1;
937 
      Bit#(2) blockHor = {interMbPartNum[0],interSubMbPartNum[0]};
938 
      Bit#(2) blockVer = {interMbPartNum[1],interSubMbPartNum[1]};
939 
      Bit#(3) partWidth = 0;
940 
      Bit#(3) partHeight = 0;
941 
      Bit#(3) numPart = 1;
942 
      Bit#(3) numSubPart = 1;
943 
      Bit#(2) subMbType = 0;
944 
      Bool noBlockC = False;
945 
      Bool calcmv = False;
946 
      Bool leftmv = False;
947 
      if(interstate==InterPskip || interstate==InterP16x16)
948 
         begin
949 
            partWidth = 4;
950 
            partHeight = 4;
951 
            numPart = 1;
952 
            calcmv = (interMbPartNum==0 && interSubMbPartNum==0);
953 
            leftmv = (blockHor>0);
954 
         end
955 
      else if(interstate==InterP16x8)
956 
         begin
957 
            partWidth = 4;
958 
            partHeight = 2;
959 
            numPart = 2;
960 
            if(interMbPartNum==2)
961 
               noBlockC = True;
962 
            calcmv = (interMbPartNum[0]==0 && interSubMbPartNum==0);
963 
            leftmv = (blockHor>0);
964 
         end
965 
      else if(interstate==InterP8x16)
966 
         begin
967 
            partWidth = 2;
968 
            partHeight = 4;
969 
            numPart = 2;
970 
            calcmv = (interMbPartNum[1]==0 && interSubMbPartNum==0);
971 
            leftmv = !(blockVer>0);
972 
         end
973 
      else if(interstate==InterP8x8 || interstate==InterP8x8ref0)
974 
         begin
975 
            numPart = 4;
976 
            subMbType = interSubMbTypeVector[interMbPartNum];
977 
            numSubPart = numSubMbPart(subMbType);
978 
            case(subMbType)
979 
               0:
980 
               begin
981 
                  partWidth = 2;
982 
                  partHeight = 2;
983 
                  if(interMbPartNum==3)
984 
                     noBlockC = True;
985 
                  calcmv = (interSubMbPartNum==0);
986 
                  leftmv = (blockHor[0]>0);
987 
               end
988 
               1:
989 
               begin
990 
                  partWidth = 2;
991 
                  partHeight = 1;
992 
                  if(interSubMbPartNum==2)
993 
                     noBlockC = True;
994 
                  calcmv = (interSubMbPartNum[0]==0);
995 
                  leftmv = True;
996 
               end
997 
               2:
998 
               begin
999 
                  partWidth = 1;
1000 
                  partHeight = 2;
1001 
                  calcmv = (interSubMbPartNum[1]==0);
1002 
                  leftmv = False;
1003 
               end
1004 
               3:
1005 
               begin
1006 
                  partWidth = 1;
1007 
                  partHeight = 1;
1008 
                  if(interSubMbPartNum==3)
1009 
                     noBlockC = True;
1010 
                  calcmv = True;
1011 
               end
1012 
            endcase
1013 
         end
1014 
      else
1015 
         $display( "ERROR Prediction: interProcessStep unexpected interstate");
1016 
      Bit#(4) refIndex = ((interstate==InterPskip||interstate==InterP8x8ref0) ? 0 : interRefIdxVector[interMbPartNum]);
1017 
      Vector#(3,InterBlockMv) blockABC = replicate(NotInter 0);
1018 
      if( currMbTemp-firstMb==0 && blockHor==0 )
1019 
         blockABC[0] = (NotInter 0);
1020 
      else
1021 
         blockABC[0] = interLeftVal[blockVer];
1022 
      if( currMbTemp-firstMb
1023 
         blockABC[1] = (NotInter 0);
1024 
      else
1025 
         blockABC[1] = interTopVal[blockHor];
1026 
      blockABC[2] = interTopVal[{1'b0,blockHor}+partWidth];
1027 
      if(noBlockC || blockABC[2]==(NotInter 0))
1028 
         blockABC[2] = interTopLeftVal[blockVer];
1029 
      Bit#(14) mvhorfinal = 0;
1030 
      Bit#(12) mvverfinal = 0;
1031 
      Bit#(5) interNewestMvNext = 0;
1032 
      if(calcmv)//motion vector caculation
1033 
         begin
1034 
            Vector#(3,Int#(14)) mvhorABC = replicate(0);
1035 
            Vector#(3,Int#(12)) mvverABC = replicate(0);
1036 
            Bit#(2) validCount = 0;
1037 
            Bit#(14) mvhorPred = 0;
1038 
            Bit#(12) mvverPred = 0;
1039 
            for(Integer ii=0; ii<3; ii=ii+1)
1040 
               begin
1041 
                  if(blockABC[ii] matches tagged BlockMv .xdata)
1042 
                     begin
1043 
                        mvhorABC[ii] = unpack(xdata.mvhor);
1044 
                        mvverABC[ii] = unpack(xdata.mvver);
1045 
                        if(xdata.refIdx == refIndex)
1046 
                           begin
1047 
                              validCount = validCount+1;
1048 
                              mvhorPred = xdata.mvhor;
1049 
                              mvverPred = xdata.mvver;
1050 
                           end
1051 
                     end
1052 
                  else
1053 
                     begin
1054 
                        mvhorABC[ii] = 0;
1055 
                        mvverABC[ii] = 0;
1056 
                     end
1057 
               end
1058 
            if(validCount != 1)//median
1059 
               begin
1060 
                  if(mvhorABC[0]>mvhorABC[1] && mvhorABC[0]>mvhorABC[2])
1061 
                     mvhorPred = pack((mvhorABC[1]>mvhorABC[2]) ? mvhorABC[1] : mvhorABC[2]);
1062 
                  else if(mvhorABC[0]
1063 
                     mvhorPred = pack((mvhorABC[1]
1064 
                  else
1065 
                     mvhorPred = pack(mvhorABC[0]);
1066 
                  if(mvverABC[0]>mvverABC[1] && mvverABC[0]>mvverABC[2])
1067 
                     mvverPred = pack((mvverABC[1]>mvverABC[2]) ? mvverABC[1] : mvverABC[2]);
1068 
                  else if(mvverABC[0]
1069 
                     mvverPred = pack((mvverABC[1]
1070 
                  else
1071 
                     mvverPred = pack(mvverABC[0]);
1072 
               end
1073 
            if(interstate==InterPskip)
1074 
               begin
1075 
                  for(Integer ii=0; ii<2; ii=ii+1)
1076 
                     begin
1077 
                        if(blockABC[ii] matches tagged BlockMv .xdata)
1078 
                           begin
1079 
                              if(xdata.refIdx==0 && xdata.mvhor==0 && xdata.mvver==0)
1080 
                                 begin
1081 
                                    mvhorPred = 0;
1082 
                                    mvverPred = 0;
1083 
                                 end
1084 
                           end
1085 
                        else if(blockABC[ii] matches tagged NotInter 0)
1086 
                           begin
1087 
                              mvhorPred = 0;
1088 
                              mvverPred = 0;
1089 
                           end
1090 
                     end
1091 
               end
1092 
            else if(interstate==InterP16x8 || interstate==InterP8x16)
1093 
               begin
1094 
                  InterBlockMv blockCheck;
1095 
                  if(interstate==InterP16x8)
1096 
                     begin
1097 
                        if(interMbPartNum==0)
1098 
                           blockCheck = blockABC[1];
1099 
                        else
1100 
                           blockCheck = blockABC[0];
1101 
                     end
1102 
                  else
1103 
                     begin
1104 
                        if(interMbPartNum==0)
1105 
                           blockCheck = blockABC[0];
1106 
                        else
1107 
                           blockCheck = blockABC[2];
1108 
                     end
1109 
                  if(blockCheck matches tagged BlockMv .xdata &&& xdata.refIdx==refIndex)
1110 
                     begin
1111 
                        mvhorPred = xdata.mvhor;
1112 
                        mvverPred = xdata.mvver;
1113 
                     end
1114 
               end
1115 
            mvhorfinal = mvhorPred;
1116 
            mvverfinal = mvverPred;
1117 
            if(interstate!=InterPskip)
1118 
               begin
1119 
                  mvhorfinal = truncate(tpl_1(interMvDiff.first()) + signExtend(mvhorPred));
1120 
                  mvverfinal = truncate(tpl_2(interMvDiff.first()) + signExtend(mvverPred));
1121 
                  interMvDiff.deq();
1122 
               end
1123 
            interMvFile.upd({interMbPartNum,interSubMbPartNum},tuple2(mvhorfinal,mvverfinal));
1124 
            interNewestMvNext = zeroExtend({interMbPartNum,interSubMbPartNum})+1;
1125 
            $display( "Trace Prediction: interProcessStep %h %h %h %h %h %h %h %h %h", interstate, interStepCount, interMbPartNum, interSubMbPartNum, pack(blockABC[0]), pack(blockABC[1]), pack(blockABC[2]), mvhorPred, mvverPred);
1126 
         end
1127 
      else
1128 
         begin
1129 
            if(leftmv)
1130 
               begin
1131 
                  if(blockABC[0] matches tagged BlockMv .xdata)
1132 
                     begin
1133 
                        mvhorfinal = unpack(xdata.mvhor);
1134 
                        mvverfinal = unpack(xdata.mvver);
1135 
                     end
1136 
                  else
1137 
                     $display( "ERROR Prediction: interProcessStep unexpected blockABC[0]");
1138 
               end
1139 
            else
1140 
               begin
1141 
                  if(blockABC[1] matches tagged BlockMv .xdata)
1142 
                     begin
1143 
                        mvhorfinal = unpack(xdata.mvhor);
1144 
                        mvverfinal = unpack(xdata.mvver);
1145 
                     end
1146 
                  else
1147 
                     $display( "ERROR Prediction: interProcessStep unexpected blockABC[1]");
1148 
               end
1149 
         end
1150 
      Bit#(2) tempBShor = 0;//bS calculation
1151 
      Bit#(2) tempBSver = 0;
1152 
      if(interLeftVal[blockVer] matches tagged BlockMv .xdata)
1153 
         begin
1154 
            if(xdata.nonZeroTransCoeff == 1)
1155 
               tempBShor = 2;
1156 
            else
1157 
               begin
1158 
                  if(xdata.refIdx!=refIndex || absDiffGEFour14(mvhorfinal,xdata.mvhor) || absDiffGEFour12(mvverfinal,xdata.mvver))
1159 
                     tempBShor = 1;
1160 
                  else
1161 
                     tempBShor = 0;
1162 
               end
1163 
         end
1164 
      else
1165 
         tempBShor = 3;
1166 
      if(interTopVal[blockHor] matches tagged BlockMv .xdata)
1167 
         begin
1168 
            if(xdata.nonZeroTransCoeff == 1)
1169 
               tempBSver = 2;
1170 
            else
1171 
               begin
1172 
                  if(xdata.refIdx!=refIndex || absDiffGEFour14(mvhorfinal,xdata.mvhor) || absDiffGEFour12(mvverfinal,xdata.mvver))
1173 
                     tempBSver = 1;
1174 
                  else
1175 
                     tempBSver = 0;
1176 
               end
1177 
         end
1178 
      else
1179 
         tempBSver = 3;
1180 
      interBSfifo.enq(tuple2(tempBShor,tempBSver));
1181 
      Vector#(5,InterBlockMv) interTopValNext = interTopVal;//update inter*Val
1182 
      Vector#(4,InterBlockMv) interLeftValNext = interLeftVal;
1183 
      Vector#(4,InterBlockMv) interTopLeftValNext = interTopLeftVal;
1184 
      interLeftValNext[blockVer] = (BlockMv {refIdx:refIndex,mvhor:mvhorfinal,mvver:mvverfinal,nonZeroTransCoeff:0});
1185 
      interTopValNext[blockHor] = (BlockMv {refIdx:refIndex,mvhor:mvhorfinal,mvver:mvverfinal,nonZeroTransCoeff:0});
1186 
      interTopLeftValNext[blockVer] = interTopVal[blockHor];
1187 
      interTopVal <= interTopValNext;
1188 
      interLeftVal <= interLeftValNext;
1189 
      interTopLeftVal <= interTopLeftValNext;
1190 
      if(blockVer == 3)
1191 
         interOutBlockMvfifo.enq(BlockMv {refIdx:refIndex,mvhor:mvhorfinal,mvver:mvverfinal,nonZeroTransCoeff:0});
1192 
      if(interSubMbPartNum == 3)//next step
1193 
         begin
1194 
            interSubMbPartNum <= 0;
1195 
            if(interMbPartNum == 3)
1196 
               begin
1197 
                  interMbPartNum <= 0;
1198 
                  interStepCount <= 0;
1199 
                  interNewestMvNext = 16;
1200 
               end
1201 
            else
1202 
               interMbPartNum <= interMbPartNum+1;
1203 
         end
1204 
      else
1205 
         interSubMbPartNum <= interSubMbPartNum+1;
1206 
      if(interNewestMvNext > 0)
1207 
         interNewestMv <= interNewestMvNext;
1208 
   endrule
1209 
 
1210 
 
1211 
   rule interIPProcessStep ( interIPStepCount>0 && currMbHorzeroExtend({interIPMbPartNum,interIPSubMbPartNum}) );
1212 
      Bit#(PicAreaSz) currMbHorTemp = currMbHor+zeroExtend(interCurrMbDiff)-1;
1213 
      Bit#(PicHeightSz) currMbVerTemp = currMbVer;
1214 
      if( currMbHorTemp >= zeroExtend(picWidth) )
1215 
         begin
1216 
            currMbHorTemp = currMbHorTemp-zeroExtend(picWidth);
1217 
            currMbVerTemp = currMbVerTemp+1;
1218 
         end
1219 
      Bit#(2) blockHor = {interIPMbPartNum[0],interIPSubMbPartNum[0]};
1220 
      Bit#(2) blockVer = {interIPMbPartNum[1],interIPSubMbPartNum[1]};
1221 
      Bit#(3) numPart = 1;
1222 
      Bit#(3) numSubPart = 1;
1223 
      Bit#(2) subMbType = 0;
1224 
      if(interstate==InterPskip || interstate==InterP16x16)
1225 
         numPart = 1;
1226 
      else if(interstate==InterP16x8)
1227 
         numPart = 2;
1228 
      else if(interstate==InterP8x16)
1229 
         numPart = 2;
1230 
      else if(interstate==InterP8x8 || interstate==InterP8x8ref0)
1231 
         begin
1232 
            numPart = 4;
1233 
            subMbType = interSubMbTypeVector[interIPMbPartNum];
1234 
            numSubPart = numSubMbPart(subMbType);
1235 
         end
1236 
      else
1237 
         $display( "ERROR Prediction: interIPProcessStep unexpected interstate");
1238 
      Bit#(4) refIndex = ((interstate==InterPskip||interstate==InterP8x8ref0) ? 0 : interRefIdxVector[interIPMbPartNum]);
1239 
      Bit#(PicWidthSz) currMbHorT = truncate(currMbHorTemp);
1240 
      Bit#(TAdd#(PicWidthSz,2)) horTemp = {currMbHorT,blockHor};
1241 
      Bit#(TAdd#(PicHeightSz,4)) verTemp = {currMbVerTemp,blockVer,2'b00};
1242 
      IPBlockType btTemp = IP16x16;
1243 
      if(interstate==InterPskip || interstate==InterP16x16)
1244 
         btTemp = IP16x16;
1245 
      else if(interstate==InterP16x8)
1246 
         btTemp = IP16x8;
1247 
      else if(interstate==InterP8x16)
1248 
         btTemp = IP8x16;
1249 
      else
1250 
         begin
1251 
            case(subMbType)
1252 
               0: btTemp = IP8x8;
1253 
               1: btTemp = IP8x4;
1254 
               2: btTemp = IP4x8;
1255 
               3: btTemp = IP4x4;
1256 
            endcase
1257 
         end
1258 
      Bit#(14) mvhorTemp = tpl_1(interMvFile.sub({interIPMbPartNum,interIPSubMbPartNum}));
1259 
      Bit#(12) mvverTemp = tpl_2(interMvFile.sub({interIPMbPartNum,interIPSubMbPartNum}));
1260 
      if(interIPStepCount == 1)
1261 
         begin
1262 
            if(!(interstate==InterP8x8 || interstate==InterP8x8ref0))
1263 
               begin
1264 
                  numPart = 4;
1265 
                  Bit#(2) interIPMbPartNumTemp = interIPMbPartNum;
1266 
                  if(btTemp==IP16x16)
1267 
                     interIPMbPartNumTemp = 0;
1268 
                  else if(btTemp==IP16x8 && interIPMbPartNumTemp[0]==1)
1269 
                     interIPMbPartNumTemp = interIPMbPartNumTemp-1;
1270 
                  else if(btTemp==IP8x16 && interIPMbPartNumTemp[1]==1)
1271 
                     interIPMbPartNumTemp = interIPMbPartNumTemp-2;
1272 
                  refIndex = ((interstate==InterPskip||interstate==InterP8x8ref0) ? 0 : interRefIdxVector[interIPMbPartNumTemp]);
1273 
                  btTemp = IP8x8;
1274 
                  mvhorTemp = tpl_1(interMvFile.sub({interIPMbPartNumTemp,2'b00}));
1275 
                  mvverTemp = tpl_2(interMvFile.sub({interIPMbPartNumTemp,2'b00}));
1276 
                  interpolator.request(IPLuma {refIdx:refIndex,hor:horTemp,ver:verTemp,mvhor:mvhorTemp,mvver:mvverTemp,bt:btTemp});
1277 
               end
1278 
            else
1279 
               interpolator.request(IPLuma {refIdx:refIndex,hor:horTemp,ver:verTemp,mvhor:mvhorTemp,mvver:mvverTemp,bt:btTemp});
1280 
         end
1281 
      else
1282 
         interpolator.request(IPChroma {refIdx:refIndex,uv:interIPStepCount[0],hor:horTemp,ver:truncate(verTemp>>1),mvhor:mvhorTemp,mvver:mvverTemp,bt:btTemp});
1283 
      if(interIPSubMbPartNum >= truncate(numSubPart-1))
1284 
         begin
1285 
            interIPSubMbPartNum <= 0;
1286 
            if(interIPMbPartNum >= truncate(numPart-1))
1287 
               begin
1288 
                  interIPMbPartNum <= 0;
1289 
                  interIPStepCount <= interIPStepCount+1;
1290 
               end
1291 
            else
1292 
               begin
1293 
                  if(btTemp == IP16x8)
1294 
                     interIPMbPartNum <= 2;
1295 
                  else
1296 
                     interIPMbPartNum <= interIPMbPartNum+1;
1297 
               end
1298 
         end
1299 
      else
1300 
         begin
1301 
            if(subMbType == 1)
1302 
               interIPSubMbPartNum <= 2;
1303 
            else
1304 
               interIPSubMbPartNum <= interIPSubMbPartNum+1;
1305 
         end
1306 
      $display( "Trace Prediction: interIPProcessStep %h %h %h %h %h %h %h %h %h %h", interstate, interIPStepCount, interIPMbPartNum, interIPSubMbPartNum, refIndex, horTemp, verTemp, mvhorTemp, mvverTemp, pack(btTemp));
1307 
   endrule
1308 
 
1309 
 
1310 
   rule interDone ( interstate!=Start && interReqCount==0 && interRespCount==0 && interStepCount==0 && interIPStepCount==0 );
1311 
      interstate <= Start;
1312 
      //$display( "Trace Prediction: interOutputTransfer %h %h", interstate, interOutputCount);
1313 
   endrule
1314 
 
1315 
 
1316 
   rule interOutputTransfer ( True );
1317 
      predictedfifo.enq(interpolator.first());
1318 
      interpolator.deq();
1319 
      //$display( "Trace Prediction: interOutputTransfer %h %h", interstate, interOutputCount);
1320 
   endrule
1321 
 
1322 
 
1323 
 
1324 
   // intra prediction rules
1325 
 
1326 
   rule intraSendReq ( intraReqCount>0 && currMbHor
1327 
      Bit#(PicWidthSz) temp2 = truncate(currMbHor);
1328 
      Bit#(TAdd#(PicWidthSz,2)) temp = 0;
1329 
      Bit#(1) noMoreReq = 0;
1330 
      if( currMb-firstMb < zeroExtend(picWidth) )
1331 
         noMoreReq = 1;
1332 
      else
1333 
         begin
1334 
            if(intraReqCount<5)
1335 
               begin
1336 
                  Bit#(2) temp3 = truncate(intraReqCount-1);
1337 
                  temp = {temp2,temp3};
1338 
               end
1339 
            else if(intraReqCount==5)
1340 
               begin
1341 
                  if((currMbHor+1)
1342 
                     temp = {(temp2+1),2'b00};
1343 
                  else if(currMbHor>0 && currMb-firstMb>zeroExtend(picWidth))
1344 
                     temp = {(temp2-1),2'b11};
1345 
                  else
1346 
                     noMoreReq = 1;
1347 
               end
1348 
            else if(intraReqCount==6)
1349 
               begin
1350 
                  if((currMbHor+1)0 && currMb-firstMb>zeroExtend(picWidth))
1351 
                     temp = {(temp2-1),2'b11};
1352 
                  else
1353 
                     noMoreReq = 1;
1354 
               end
1355 
            else
1356 
               noMoreReq = 1;
1357 
         end
1358 
      if(noMoreReq == 0)
1359 
         begin
1360 
            intraMemReqQ.enq(LoadReq temp);
1361 
            intraReqCount <= intraReqCount+1;
1362 
            //$display( "TRACE Prediction: intraSendReq addr %0d",temp);///////////////////////
1363 
         end
1364 
      else
1365 
         intraReqCount <= 0;
1366 
      $display( "Trace Prediction: intraSendReq");
1367 
   endrule
1368 
 
1369 
 
1370 
   rule intraReceiveNoResp ( intraRespCount>0 && currMbHor
1371 
      intra4x4typeTop <= replicate(15);
1372 
      intraRespCount <= 0;
1373 
      intraStepCount <= 1;
1374 
      blockNum <= 0;
1375 
      pixelNum <= 0;
1376 
      interOutBlockMvfifo.enq(NotInter 1);
1377 
      $display( "Trace Prediction: intraReceiveNoResp");
1378 
   endrule
1379 
 
1380 
 
1381 
   rule intraReceiveResp ( intraRespCount>0 && intraRespCount<7 && currMbHor
1382 
      Bit#(1) noMoreResp = 0;
1383 
      Bit#(2) temp2bit = 0;
1384 
      if(intraRespCount<5)
1385 
         begin
1386 
            temp2bit = truncate(intraRespCount-1);
1387 
            intra4x4typeTop <= update(intra4x4typeTop, temp2bit, data[67:64]);
1388 
            if(intraRespCount==4)
1389 
               begin
1390 
                  Vector#(5,Bit#(32)) intraTopValTemp = intraTopVal;
1391 
                  intraTopValTemp[3] = data[31:0];
1392 
                  intraTopValTemp[4] = {data[31:24],data[31:24],data[31:24],data[31:24]};
1393 
                  intraTopVal <= intraTopValTemp;
1394 
                  if(!((currMbHor+1)0 && currMb-firstMb>zeroExtend(picWidth)))
1395 
                     noMoreResp = 1;
1396 
               end
1397 
            else
1398 
               intraTopVal <= update(intraTopVal, intraRespCount-1, data[31:0]);
1399 
            intraTopValChroma0 <= update(intraTopValChroma0, temp2bit, data[47:32]);
1400 
            intraTopValChroma1 <= update(intraTopValChroma1, temp2bit, data[63:48]);
1401 
         end
1402 
      else if(intraRespCount==5)
1403 
         begin
1404 
            if((currMbHor+1)
1405 
               begin
1406 
                  if(!(data[67:64]==15 || (data[67:64]==14 && ppsconstrained_intra_pred_flag==1)))
1407 
                     intraTopVal <= update(intraTopVal, 4, data[31:0]);
1408 
                  if(!(currMbHor>0 && currMb-firstMb>zeroExtend(picWidth)))
1409 
                     noMoreResp = 1;
1410 
               end
1411 
            else
1412 
               begin
1413 
                  Bit#(40) temp2 = intraLeftVal[0];
1414 
                  intraLeftVal <= update(intraLeftVal, 0, {temp2[39:8],data[31:24]});
1415 
                  intraLeftValChroma0 <= update(intraLeftValChroma0, 0, data[47:40]);
1416 
                  intraLeftValChroma1 <= update(intraLeftValChroma1, 0, data[63:56]);
1417 
                  noMoreResp = 1;
1418 
               end
1419 
         end
1420 
      else
1421 
         begin
1422 
            Bit#(40) temp2 = intraLeftVal[0];
1423 
            intraLeftVal <= update(intraLeftVal, 0, {temp2[39:8],data[31:24]});
1424 
            intraLeftValChroma0 <= update(intraLeftValChroma0, 0, data[47:40]);
1425 
            intraLeftValChroma1 <= update(intraLeftValChroma1, 0, data[63:56]);
1426 
            noMoreResp = 1;
1427 
         end
1428 
      intraMemRespQ.deq();
1429 
      //$display( "TRACE Prediction: intraReceiveResp data %h",data);///////////////////////
1430 
      if(noMoreResp == 0)
1431 
         intraRespCount <= intraRespCount+1;
1432 
      else
1433 
         begin
1434 
            intraRespCount <= 0;
1435 
            intraStepCount <= 1;
1436 
            blockNum <= 0;
1437 
            pixelNum <= 0;
1438 
            interOutBlockMvfifo.enq(NotInter 1);
1439 
         end
1440 
      $display( "Trace Prediction: intraReceiveResp");
1441 
   endrule
1442 
 
1443 
 
1444 
   rule intraPredTypeStep ( intraStepCount==1 && !nextoutputfifo.notEmpty());
1445 
      Bit#(2) blockHor = {blockNum[2],blockNum[0]};
1446 
      Bit#(2) blockVer = {blockNum[3],blockNum[1]};
1447 
      Bit#(4) topType = select(intra4x4typeTop, blockHor);
1448 
      Bit#(4) leftType;
1449 
      if(currMbHor!=0 || blockNum!=0)
1450 
         leftType = select(intra4x4typeLeft, blockVer);
1451 
      else
1452 
         begin
1453 
            leftType = 15;
1454 
            intra4x4typeLeft <= replicate(15);
1455 
         end
1456 
      if(intrastate!=Intra4x4)
1457 
         begin
1458 
            intraStepCount <= intraStepCount+1;
1459 
            nextoutputfifo.enq(NonSkipMB);
1460 
         end
1461 
      else
1462 
         begin
1463 
            Bit#(1) topAvailable;
1464 
            Bit#(1) leftAvailable;
1465 
            if(topType==15 || (topType==14 && ppsconstrained_intra_pred_flag==1))
1466 
               topAvailable = 0;
1467 
            else
1468 
               topAvailable = 1;
1469 
            if(leftType==15 || (leftType==14 && ppsconstrained_intra_pred_flag==1))
1470 
               leftAvailable = 0;
1471 
            else
1472 
               leftAvailable = 1;
1473 
            Bit#(4) predType = 0;
1474 
            Bit#(4) remType = rem_intra4x4_pred_mode.first();
1475 
            Bit#(4) curType = 0;
1476 
            rem_intra4x4_pred_mode.deq();
1477 
            if(topAvailable==0 || leftAvailable==0)
1478 
               predType = 2;
1479 
            else
1480 
               begin
1481 
                  Bit#(4) topType2 = topType;
1482 
                  Bit#(4) leftType2 = leftType;
1483 
                  if(topType>8)
1484 
                     topType2 = 2;
1485 
                  if(leftType>8)
1486 
                     leftType2 = 2;
1487 
                  if(topType2 > leftType2)
1488 
                     predType = leftType2;
1489 
                  else
1490 
                     predType = topType2;
1491 
               end
1492 
            if(remType[3] == 1)
1493 
               curType = predType;
1494 
            else if(remType < predType)
1495 
               curType = remType;
1496 
            else
1497 
               curType = remType+1;
1498 
            cur_intra4x4_pred_mode <= curType;
1499 
            intraStepCount <= intraStepCount+1;
1500 
            if(blockNum == 15)
1501 
               nextoutputfifo.enq(Intra4x4PlusChroma);
1502 
            else
1503 
               nextoutputfifo.enq(Intra4x4);
1504 
            $display( "TRACE Prediction: intraPredTypeStep currMbHor currMbVer blockNum topType leftType predType remType curType %0d %0d %0d %0d %0d %0d %0d %0d",currMbHor,currMbVer,blockNum,topType,leftType,predType,remType,curType);//////////////////
1505 
         end
1506 
      //$display( "Trace Prediction: intraPredTypeStep");
1507 
   endrule
1508 
 
1509 
 
1510 
   rule intraProcessStep ( intraStepCount>1 );
1511 
      $display( "TRACE Prediction: intraProcessStep %0d %0d", blockNum, pixelNum);////////////////////
1512 
      //$display( "TRACE Prediction: intraProcessStep intraTopVal %h %h %h %h %h",intraTopVal[4],intraTopVal[3],intraTopVal[2],intraTopVal[1],intraTopVal[0]);/////////////////
1513 
      Bit#(1) outFlag  = 0;
1514 
      Bit#(4) nextIntraStepCount = intraStepCount+1;
1515 
      Bit#(2) blockHor = {blockNum[2],blockNum[0]};
1516 
      Bit#(2) blockVer = {blockNum[3],blockNum[1]};
1517 
      Bit#(2) pixelVer = {pixelNum[3],pixelNum[2]};
1518 
      Vector#(4,Bit#(8)) predVector = replicate(0);
1519 
 
1520 
      Bit#(4) topType = select(intra4x4typeTop, blockHor);
1521 
      Bit#(4) leftType = select(intra4x4typeLeft, blockVer);
1522 
      Bit#(1) topAvailable;
1523 
      Bit#(1) leftAvailable;
1524 
      if(topType==15 || (topType==14 && ppsconstrained_intra_pred_flag==1))
1525 
         topAvailable = 0;
1526 
      else
1527 
         topAvailable = 1;
1528 
      if(leftType==15 || (leftType==14 && ppsconstrained_intra_pred_flag==1))
1529 
         leftAvailable = 0;
1530 
      else
1531 
         leftAvailable = 1;
1532 
      if(blockNum==0 && pixelNum==0 && intraChromaFlag==0)
1533 
         begin
1534 
            intraChromaTopAvailable <= topAvailable;
1535 
            intraChromaLeftAvailable <= leftAvailable;
1536 
         end
1537 
      if(intrastate==Intra4x4 && intraChromaFlag==0)
1538 
         begin
1539 
            if(intraStepCount==2)
1540 
               begin
1541 
                  outFlag = 1;
1542 
                  Bit#(40) leftValSet = select(intraLeftVal,blockVer);
1543 
                  Bit#(32) topMidValSet = select(intraTopVal,zeroExtend(blockHor));
1544 
                  Bit#(32) topRightValSet = select(intraTopVal,{1'b0,blockHor}+1);
1545 
                  Bit#(72) topValSet;
1546 
                  if((blockNum[3:2]==3 && blockNum[0]==1) || blockNum[1:0]==3)
1547 
                     topValSet = {topMidValSet[31:24],topMidValSet[31:24],topMidValSet[31:24],topMidValSet[31:24],topMidValSet,leftValSet[7:0]};
1548 
                  else
1549 
                     topValSet = {topRightValSet,topMidValSet,leftValSet[7:0]};
1550 
                  $display( "TRACE Prediction: intraProcessStep intra4x4 %0d %0d %h %h", cur_intra4x4_pred_mode, blockNum, leftValSet, topValSet);////////////////////
1551 
                  Bit#(4) topSelect1 = 0;
1552 
                  Bit#(4) topSelect2 = 0;
1553 
                  Bit#(4) topSelect3 = 0;
1554 
                  Bit#(3) leftSelect1 = 0;
1555 
                  Bit#(3) leftSelect2 = 0;
1556 
                  Bit#(3) leftSelect3 = 0;
1557 
                  Bit#(10) tempVal1 = 0;
1558 
                  Bit#(10) tempVal2 = 0;
1559 
                  Bit#(10) tempVal3 = 0;
1560 
                  case(cur_intra4x4_pred_mode)
1561 
                     0://vertical
1562 
                     begin
1563 
                        for(Integer pixelHor=0; pixelHor<4; pixelHor=pixelHor+1)
1564 
                           begin
1565 
                              topSelect1 = fromInteger(pixelHor);
1566 
                              Bit#(8) topVal = intra4x4SelectTop(topValSet,topSelect1);
1567 
                              predVector[pixelHor] = topVal;
1568 
                           end
1569 
                     end
1570 
                     1://horizontal
1571 
                     begin
1572 
                        leftSelect1 = zeroExtend(pixelVer);
1573 
                        Bit#(8) leftVal = intra4x4SelectLeft(leftValSet,leftSelect1);
1574 
                        for(Integer pixelHor=0; pixelHor<4; pixelHor=pixelHor+1)
1575 
                           predVector[pixelHor] = leftVal;
1576 
                     end
1577 
                     2://dc
1578 
                     begin
1579 
                        for(Integer pixelHor=0; pixelHor<4; pixelHor=pixelHor+1)
1580 
                           begin
1581 
                              Bit#(10) tempTopSum = zeroExtend(topValSet[15:8])+zeroExtend(topValSet[23:16])+zeroExtend(topValSet[31:24])+zeroExtend(topValSet[39:32]) + 2;
1582 
                              Bit#(10) tempLeftSum = zeroExtend(leftValSet[15:8])+zeroExtend(leftValSet[23:16])+zeroExtend(leftValSet[31:24])+zeroExtend(leftValSet[39:32]) + 2;
1583 
                              Bit#(11) tempTotalSum = zeroExtend(tempTopSum)+zeroExtend(tempLeftSum);
1584 
                              Bit#(8) topSum = tempTopSum[9:2];
1585 
                              Bit#(8) leftSum = tempLeftSum[9:2];
1586 
                              Bit#(8) totalSum = tempTotalSum[10:3];
1587 
                              if(topAvailable==1 && leftAvailable==1)
1588 
                                 predVector[pixelHor] = totalSum;
1589 
                              else if(topAvailable==1)
1590 
                                 predVector[pixelHor] = topSum;
1591 
                              else if(leftAvailable==1)
1592 
                                 predVector[pixelHor] = leftSum;
1593 
                              else
1594 
                                 predVector[pixelHor] = 8'b10000000;
1595 
                           end
1596 
                     end
1597 
                     3://diagonal down left
1598 
                     begin
1599 
                        for(Integer pixelHor=0; pixelHor<4; pixelHor=pixelHor+1)
1600 
                           begin
1601 
                              Bit#(4) selectNum = fromInteger(pixelHor)+zeroExtend(pixelVer);
1602 
                              if(pixelHor==3 && pixelVer==3)
1603 
                                 begin
1604 
                                    topSelect1 = 6;
1605 
                                    topSelect2 = 7;
1606 
                                    topSelect3 = 7;
1607 
                                 end
1608 
                              else
1609 
                                 begin
1610 
                                    topSelect1 = selectNum;
1611 
                                    topSelect2 = selectNum+1;
1612 
                                    topSelect3 = selectNum+2;
1613 
                                 end
1614 
                              tempVal1 = zeroExtend(intra4x4SelectTop(topValSet,topSelect1));
1615 
                              tempVal2 = zeroExtend(intra4x4SelectTop(topValSet,topSelect2));
1616 
                              tempVal3 = zeroExtend(intra4x4SelectTop(topValSet,topSelect3));
1617 
                              Bit#(10) predVal = tempVal1 + (tempVal2<<1) + tempVal3 + 2;
1618 
                              predVector[pixelHor] = predVal[9:2];
1619 
                           end
1620 
                     end
1621 
                     4://diagonal down right
1622 
                     begin
1623 
                        for(Integer pixelHor=0; pixelHor<4; pixelHor=pixelHor+1)
1624 
                           begin
1625 
                              if(fromInteger(pixelHor) > pixelVer)
1626 
                                 begin
1627 
                                    topSelect3 = fromInteger(pixelHor)-zeroExtend(pixelVer);
1628 
                                    topSelect2 = topSelect3-1;
1629 
                                    topSelect1 = topSelect3-2;
1630 
                                    tempVal1 = zeroExtend(intra4x4SelectTop(topValSet,topSelect1));
1631 
                                    tempVal2 = zeroExtend(intra4x4SelectTop(topValSet,topSelect2));
1632 
                                    tempVal3 = zeroExtend(intra4x4SelectTop(topValSet,topSelect3));
1633 
                                 end
1634 
                              else if(fromInteger(pixelHor) < pixelVer)
1635 
                                 begin
1636 
                                    leftSelect3 = zeroExtend(pixelVer)-fromInteger(pixelHor);
1637 
                                    leftSelect2 = leftSelect3-1;
1638 
                                    leftSelect1 = leftSelect3-2;
1639 
                                    tempVal1 = zeroExtend(intra4x4SelectLeft(leftValSet,leftSelect1));
1640 
                                    tempVal2 = zeroExtend(intra4x4SelectLeft(leftValSet,leftSelect2));
1641 
                                    tempVal3 = zeroExtend(intra4x4SelectLeft(leftValSet,leftSelect3));
1642 
                                 end
1643 
                              else
1644 
                                 begin
1645 
                                    leftSelect1 = 0;
1646 
                                    leftSelect2 = -1;
1647 
                                    topSelect1 = 0;
1648 
                                    tempVal1 = zeroExtend(intra4x4SelectLeft(leftValSet,leftSelect1));
1649 
                                    tempVal2 = zeroExtend(intra4x4SelectLeft(leftValSet,leftSelect2));
1650 
                                    tempVal3 = zeroExtend(intra4x4SelectTop(topValSet,topSelect1));
1651 
                                 end
1652 
                              Bit#(10) predVal = tempVal1 + (tempVal2<<1) + tempVal3 + 2;
1653 
                              predVector[pixelHor] = predVal[9:2];
1654 
                           end
1655 
                     end
1656 
                     5://vertical right
1657 
                     begin
1658 
                        for(Integer pixelHor=0; pixelHor<4; pixelHor=pixelHor+1)
1659 
                           begin
1660 
                              Bit#(4) tempPixelHor = fromInteger(pixelHor);
1661 
                              Bit#(4) zVR = (tempPixelHor<<1)-zeroExtend(pixelVer);
1662 
                              if(zVR<=6 && zVR>=0)
1663 
                                 begin
1664 
                                    topSelect3 = fromInteger(pixelHor)-zeroExtend(pixelVer>>1);
1665 
                                    topSelect2 = topSelect3-1;
1666 
                                    if(zVR==1 || zVR==3 || zVR==5)
1667 
                                       topSelect1 = topSelect3-2;
1668 
                                    else
1669 
                                       topSelect1 = topSelect3;
1670 
                                    tempVal1 = zeroExtend(intra4x4SelectTop(topValSet,topSelect1));
1671 
                                    tempVal2 = zeroExtend(intra4x4SelectTop(topValSet,topSelect2));
1672 
                                    tempVal3 = zeroExtend(intra4x4SelectTop(topValSet,topSelect3));
1673 
                                 end
1674 
                              else if(zVR==-1)
1675 
                                 begin
1676 
                                    leftSelect1 = 0;
1677 
                                    leftSelect2 = -1;
1678 
                                    topSelect1 = 0;
1679 
                                    tempVal1 = zeroExtend(intra4x4SelectLeft(leftValSet,leftSelect1));
1680 
                                    tempVal2 = zeroExtend(intra4x4SelectLeft(leftValSet,leftSelect2));
1681 
                                    tempVal3 = zeroExtend(intra4x4SelectTop(topValSet,topSelect1));
1682 
                                 end
1683 
                              else
1684 
                                 begin
1685 
                                    leftSelect1 = zeroExtend(pixelVer)-1;
1686 
                                    leftSelect2 = leftSelect1-1;
1687 
                                    leftSelect3 = leftSelect1-2;
1688 
                                    tempVal1 = zeroExtend(intra4x4SelectLeft(leftValSet,leftSelect1));
1689 
                                    tempVal2 = zeroExtend(intra4x4SelectLeft(leftValSet,leftSelect2));
1690 
                                    tempVal3 = zeroExtend(intra4x4SelectLeft(leftValSet,leftSelect3));
1691 
                                 end
1692 
                              Bit#(10) predVal = tempVal1 + (tempVal2<<1) + tempVal3 + 2;
1693 
                              predVector[pixelHor] = predVal[9:2];
1694 
                           end
1695 
                     end
1696 
                     6://horizontal down
1697 
                     begin
1698 
                        for(Integer pixelHor=0; pixelHor<4; pixelHor=pixelHor+1)
1699 
                           begin
1700 
                              Bit#(4) tempPixelVer = zeroExtend(pixelVer);
1701 
                              Bit#(4) zHD = (tempPixelVer<<1)-fromInteger(pixelHor);
1702 
                              if(zHD<=6 && zHD>=0)
1703 
                                 begin
1704 
                                    leftSelect3 = zeroExtend(pixelVer)-fromInteger(pixelHor/2);
1705 
                                    leftSelect2 = leftSelect3-1;
1706 
                                    if(zHD==1 || zHD==3 || zHD==5)
1707 
                                       leftSelect1 = leftSelect3-2;
1708 
                                    else
1709 
                                       leftSelect1 = leftSelect3;
1710 
                                    tempVal1 = zeroExtend(intra4x4SelectLeft(leftValSet,leftSelect1));
1711 
                                    tempVal2 = zeroExtend(intra4x4SelectLeft(leftValSet,leftSelect2));
1712 
                                    tempVal3 = zeroExtend(intra4x4SelectLeft(leftValSet,leftSelect3));
1713 
                                 end
1714 
                              else if(zHD==-1)
1715 
                                 begin
1716 
                                    leftSelect1 = 0;
1717 
                                    leftSelect2 = -1;
1718 
                                    topSelect1 = 0;
1719 
                                    tempVal1 = zeroExtend(intra4x4SelectLeft(leftValSet,leftSelect1));
1720 
                                    tempVal2 = zeroExtend(intra4x4SelectLeft(leftValSet,leftSelect2));
1721 
                                    tempVal3 = zeroExtend(intra4x4SelectTop(topValSet,topSelect1));
1722 
                                 end
1723 
                              else
1724 
                                 begin
1725 
                                    topSelect1 = fromInteger(pixelHor)-1;
1726 
                                    topSelect2 = topSelect1-1;
1727 
                                    topSelect3 = topSelect1-2;
1728 
                                    tempVal1 = zeroExtend(intra4x4SelectTop(topValSet,topSelect1));
1729 
                                    tempVal2 = zeroExtend(intra4x4SelectTop(topValSet,topSelect2));
1730 
                                    tempVal3 = zeroExtend(intra4x4SelectTop(topValSet,topSelect3));
1731 
                                 end
1732 
                              Bit#(10) predVal = tempVal1 + (tempVal2<<1) + tempVal3 + 2;
1733 
                              predVector[pixelHor] = predVal[9:2];
1734 
                           end
1735 
                     end
1736 
                     7://vertical left
1737 
                     begin
1738 
                        for(Integer pixelHor=0; pixelHor<4; pixelHor=pixelHor+1)
1739 
                           begin
1740 
                              topSelect1 = fromInteger(pixelHor)+zeroExtend(pixelVer>>1);
1741 
                              topSelect2 = topSelect1+1;
1742 
                              if(pixelVer==1 || pixelVer==3)
1743 
                                 topSelect3 = topSelect1+2;
1744 
                              else
1745 
                                 topSelect3 = topSelect1;
1746 
                              tempVal1 = zeroExtend(intra4x4SelectTop(topValSet,topSelect1));
1747 
                              tempVal2 = zeroExtend(intra4x4SelectTop(topValSet,topSelect2));
1748 
                              tempVal3 = zeroExtend(intra4x4SelectTop(topValSet,topSelect3));
1749 
                              Bit#(10) predVal = tempVal1 + (tempVal2<<1) + tempVal3 + 2;
1750 
                              predVector[pixelHor] = predVal[9:2];
1751 
                           end
1752 
                     end
1753 
                     8://horizontal up
1754 
                     begin
1755 
                        for(Integer pixelHor=0; pixelHor<4; pixelHor=pixelHor+1)
1756 
                           begin
1757 
                              Bit#(4) tempPixelVer = zeroExtend(pixelVer);
1758 
                              Bit#(4) zHU = (tempPixelVer<<1)+fromInteger(pixelHor);
1759 
                              if(zHU<=4)
1760 
                                 begin
1761 
                                    leftSelect1 = zeroExtend(pixelVer)+fromInteger(pixelHor/2);
1762 
                                    leftSelect2 = leftSelect1+1;
1763 
                                    if(zHU==1 || zHU==3)
1764 
                                       leftSelect3 = leftSelect1+2;
1765 
                                    else
1766 
                                       leftSelect3 = leftSelect1;
1767 
                                 end
1768 
                              else
1769 
                                 begin
1770 
                                    if(zHU==5)
1771 
                                       leftSelect1 = 2;
1772 
                                    else
1773 
                                       leftSelect1 = 3;
1774 
                                    leftSelect2 = 3;
1775 
                                    leftSelect3 = 3;
1776 
                                 end
1777 
                              tempVal1 = zeroExtend(intra4x4SelectLeft(leftValSet,leftSelect1));
1778 
                              tempVal2 = zeroExtend(intra4x4SelectLeft(leftValSet,leftSelect2));
1779 
                              tempVal3 = zeroExtend(intra4x4SelectLeft(leftValSet,leftSelect3));
1780 
                              Bit#(10) predVal = tempVal1 + (tempVal2<<1) + tempVal3 + 2;
1781 
                              predVector[pixelHor] = predVal[9:2];
1782 
                           end
1783 
                     end
1784 
                     default: $display( "ERROR Prediction: intraProcessStep intra4x4 unknown cur_intra4x4_pred_mode");
1785 
                  endcase
1786 
               end
1787 
            else
1788 
               $display( "ERROR Prediction: intraProcessStep intra4x4 unknown intraStepCount");
1789 
         end
1790 
      else if(intrastate==Intra16x16  && intraChromaFlag==0)
1791 
         begin
1792 
            //$display( "TRACE Prediction: intraProcessStep intra16x16 %0d %0d %0d %h", intra16x16_pred_mode, currMb, blockNum, select(intraTopVal,blockHor));/////////////////
1793 
            case(intra16x16_pred_mode)
1794 
               0://vertical
1795 
               begin
1796 
                  for(Integer pixelHor=0; pixelHor<4; pixelHor=pixelHor+1)
1797 
                     begin
1798 
                        Bit#(32) topValSet = select(intraTopVal,blockHor);
1799 
                        Bit#(8) topVal = select32to8(topValSet,fromInteger(pixelHor));
1800 
                        predVector[pixelHor] = topVal;
1801 
                     end
1802 
                  outFlag = 1;
1803 
               end
1804 
               1://horizontal
1805 
               begin
1806 
                  Bit#(40) leftValSet = select(intraLeftVal,blockVer);
1807 
                  Bit#(8) leftVal = intra4x4SelectLeft(leftValSet,zeroExtend(pixelVer));
1808 
                  for(Integer pixelHor=0; pixelHor<4; pixelHor=pixelHor+1)
1809 
                     predVector[pixelHor] = leftVal;
1810 
                  outFlag = 1;
1811 
               end
1812 
               2://dc
1813 
               begin
1814 
                  case(intraStepCount)
1815 
                     2:
1816 
                     begin
1817 
                        if(topAvailable == 1)
1818 
                           begin
1819 
                              Bit#(32) topValSet = select(intraTopVal,0);
1820 
                              intraSumA <= zeroExtend(topValSet[7:0])+zeroExtend(topValSet[15:8])+zeroExtend(topValSet[23:16])+zeroExtend(topValSet[31:24]);
1821 
                           end
1822 
                        else
1823 
                           begin
1824 
                              intraSumA <= 0;
1825 
                              nextIntraStepCount = 6;
1826 
                           end
1827 
                     end
1828 
                     3:
1829 
                     begin
1830 
                        Bit#(32) topValSet = select(intraTopVal,1);
1831 
                        intraSumA <= intraSumA+zeroExtend(topValSet[7:0])+zeroExtend(topValSet[15:8])+zeroExtend(topValSet[23:16])+zeroExtend(topValSet[31:24]);
1832 
                     end
1833 
                     4:
1834 
                     begin
1835 
                        Bit#(32) topValSet = select(intraTopVal,2);
1836 
                        intraSumA <= intraSumA+zeroExtend(topValSet[7:0])+zeroExtend(topValSet[15:8])+zeroExtend(topValSet[23:16])+zeroExtend(topValSet[31:24]);
1837 
                     end
1838 
                     5:
1839 
                     begin
1840 
                        Bit#(32) topValSet = select(intraTopVal,3);
1841 
                        intraSumA <= intraSumA+zeroExtend(topValSet[7:0])+zeroExtend(topValSet[15:8])+zeroExtend(topValSet[23:16])+zeroExtend(topValSet[31:24])+8;
1842 
                     end
1843 
                     6:
1844 
                     begin
1845 
                        if(leftAvailable == 1)
1846 
                           begin
1847 
                              Bit#(40) leftValSet = select(intraLeftVal,0);
1848 
                              intraSumA <= intraSumA+zeroExtend(leftValSet[15:8])+zeroExtend(leftValSet[23:16])+zeroExtend(leftValSet[31:24])+zeroExtend(leftValSet[39:32]);
1849 
                           end
1850 
                        else
1851 
                           nextIntraStepCount = 10;
1852 
                     end
1853 
                     7:
1854 
                     begin
1855 
                        Bit#(40) leftValSet = select(intraLeftVal,1);
1856 
                        intraSumA <= intraSumA+zeroExtend(leftValSet[15:8])+zeroExtend(leftValSet[23:16])+zeroExtend(leftValSet[31:24])+zeroExtend(leftValSet[39:32]);
1857 
                     end
1858 
                     8:
1859 
                     begin
1860 
                        Bit#(40) leftValSet = select(intraLeftVal,2);
1861 
                        intraSumA <= intraSumA+zeroExtend(leftValSet[15:8])+zeroExtend(leftValSet[23:16])+zeroExtend(leftValSet[31:24])+zeroExtend(leftValSet[39:32]);
1862 
                     end
1863 
                     9:
1864 
                     begin
1865 
                        Bit#(40) leftValSet = select(intraLeftVal,3);
1866 
                        intraSumA <= intraSumA+zeroExtend(leftValSet[15:8])+zeroExtend(leftValSet[23:16])+zeroExtend(leftValSet[31:24])+zeroExtend(leftValSet[39:32])+8;
1867 
                     end
1868 
                     10:
1869 
                     begin
1870 
                        if(leftAvailable == 1 && topAvailable == 1)
1871 
                           intraSumA <= intraSumA >> 5;
1872 
                        else if(leftAvailable == 1 || topAvailable == 1)
1873 
                           intraSumA <= intraSumA >> 4;
1874 
                        else
1875 
                           intraSumA <= 128;
1876 
                     end
1877 
                     11:
1878 
                     begin
1879 
                        for(Integer pixelHor=0; pixelHor<4; pixelHor=pixelHor+1)
1880 
                           predVector[pixelHor] = intraSumA[7:0];
1881 
                        outFlag = 1;
1882 
                     end
1883 
                     default: $display( "ERROR Prediction: intraProcessStep intra16x16 DC unknown intraStepCount");
1884 
                  endcase
1885 
               end
1886 
               3://plane
1887 
               begin
1888 
                  if(intraStepCount == 2)
1889 
                     begin
1890 
                        Bit#(32) topValSet = select(intraTopVal,3);
1891 
                        Bit#(8) topVal = select32to8(topValSet,3);
1892 
                        Bit#(40) leftValSet = select(intraLeftVal,3);
1893 
                        Bit#(8) leftVal = intra4x4SelectLeft(leftValSet,3);
1894 
                        Bit#(13) tempVal = zeroExtend(topVal) + zeroExtend(leftVal);
1895 
                        intraSumA <= tempVal << 4;
1896 
                        intraSumB <= 0;
1897 
                        intraSumC <= 0;
1898 
                     end
1899 
                  else if(intraStepCount < 11)
1900 
                     begin
1901 
                        Bit#(4) xyPlusOne = intraStepCount-2;
1902 
                        Bit#(4) xyPlusEight = intraStepCount+5;
1903 
                        Bit#(4) sixMinusXY = 9-intraStepCount;
1904 
                        Bit#(32) topValSet1 = select(intraTopVal,xyPlusEight[3:2]);
1905 
                        Bit#(8) topVal1 = select32to8(topValSet1,xyPlusEight[1:0]);
1906 
                        Bit#(40) leftValSet1 = select(intraLeftVal,xyPlusEight[3:2]);
1907 
                        Bit#(8) leftVal1 = intra4x4SelectLeft(leftValSet1,zeroExtend(xyPlusEight[1:0]));
1908 
                        Bit#(32) topValSet2=0;
1909 
                        Bit#(8) topVal2;
1910 
                        Bit#(40) leftValSet2;
1911 
                        Bit#(8) leftVal2;
1912 
                        if(intraStepCount==10)
1913 
                           begin
1914 
                              leftValSet2 = select(intraLeftVal,0);
1915 
                              leftVal2 = intra4x4SelectLeft(leftValSet2,-1);
1916 
                              topVal2 = leftVal2;
1917 
                           end
1918 
                        else
1919 
                           begin
1920 
                              topValSet2 = select(intraTopVal,sixMinusXY[3:2]);
1921 
                              topVal2 = select32to8(topValSet2,sixMinusXY[1:0]);
1922 
                              leftValSet2 = select(intraLeftVal,sixMinusXY[3:2]);
1923 
                              leftVal2 = intra4x4SelectLeft(leftValSet2,zeroExtend(sixMinusXY[1:0]));
1924 
                           end
1925 
                        Bit#(15) diffH = zeroExtend(topVal1) - zeroExtend(topVal2);
1926 
                        Bit#(15) diffV = zeroExtend(leftVal1) - zeroExtend(leftVal2);
1927 
                        intraSumB <= intraSumB + (zeroExtend(xyPlusOne) * diffH);
1928 
                        intraSumC <= intraSumC + (zeroExtend(xyPlusOne) * diffV);
1929 
                     end
1930 
                  else if(intraStepCount == 11)
1931 
                     begin
1932 
                        Bit#(18) tempSumB = (5*signExtend(intraSumB)) + 32;
1933 
                        Bit#(18) tempSumC = (5*signExtend(intraSumC)) + 32;
1934 
                        intraSumB <= signExtend(tempSumB[17:6]);
1935 
                        intraSumC <= signExtend(tempSumC[17:6]);
1936 
                     end
1937 
                  else if(intraStepCount == 12)
1938 
                     begin
1939 
                        for(Integer pixelHor=0; pixelHor<4; pixelHor=pixelHor+1)
1940 
                           begin
1941 
                              Bit#(5)  positionHor = {1'b0,blockHor,fromInteger(pixelHor)};
1942 
                              Bit#(5)  positionVer = {1'b0,blockVer,pixelVer};
1943 
                              Bit#(16) tempProductB = signExtend(intraSumB) * signExtend(positionHor-7);
1944 
                              Bit#(16) tempProductC = signExtend(intraSumC) * signExtend(positionVer-7);
1945 
                              Bit#(16) tempTotal = tempProductB + tempProductC + zeroExtend(intraSumA) + 16;
1946 
                              if(tempTotal[15]==1)
1947 
                                 predVector[pixelHor] = 0;
1948 
                              else if(tempTotal[14:5] > 255)
1949 
                                 predVector[pixelHor] = 255;
1950 
                              else
1951 
                                 predVector[pixelHor] = tempTotal[12:5];
1952 
                           end
1953 
                        outFlag = 1;
1954 
                     end
1955 
                  else
1956 
                     $display( "ERROR Prediction: intraProcessStep intra16x16 plane unknown intraStepCount");
1957 
               end
1958 
            endcase
1959 
         end
1960 
      else if(intraChromaFlag==1)
1961 
         begin
1962 
            //$display( "TRACE Prediction: intraProcessStep intraChroma %0d %0d %0d %0d %0d %0d %h %h %h %h %h %h %h %h",intra_chroma_pred_mode.first(),intraChromaTopAvailable,intraChromaLeftAvailable,currMb,blockNum,pixelNum,pack(intraLeftValChroma0),pack(intraTopValChroma0),pack(intraLeftValChroma1),pack(intraTopValChroma1),intraLeftValChroma0[0],intraTopValChroma0[3][15:8],intraLeftValChroma1[0],intraTopValChroma1[3][15:8]);///////////////////
1963 
            Vector#(9,Bit#(8)) tempLeftVec;
1964 
            Vector#(4,Bit#(16)) tempTopVec;
1965 
            if(blockNum[2] == 0)
1966 
               begin
1967 
                  tempLeftVec = intraLeftValChroma0;
1968 
                  tempTopVec = intraTopValChroma0;
1969 
               end
1970 
            else
1971 
               begin
1972 
                  tempLeftVec = intraLeftValChroma1;
1973 
                  tempTopVec = intraTopValChroma1;
1974 
               end
1975 
            case(intra_chroma_pred_mode.first())
1976 
               0://dc
1977 
               begin
1978 
                  if(intraStepCount == 2)
1979 
                     begin
1980 
                        Bit#(1) useTop=0;
1981 
                        Bit#(1) useLeft=0;
1982 
                        if(blockNum[1:0] == 0 || blockNum[1:0] == 3)
1983 
                           begin
1984 
                              useTop = intraChromaTopAvailable;
1985 
                              useLeft = intraChromaLeftAvailable;
1986 
                           end
1987 
                        else if(blockNum[1:0] == 1)
1988 
                           begin
1989 
                              if(intraChromaTopAvailable == 1)
1990 
                                 useTop = 1;
1991 
                              else if(intraChromaLeftAvailable == 1)
1992 
                                 useLeft = 1;
1993 
                           end
1994 
                              else if(blockNum[1:0] == 2)
1995 
                                 begin
1996 
                                    if(intraChromaLeftAvailable == 1)
1997 
                                       useLeft = 1;
1998 
                                    else if(intraChromaTopAvailable == 1)
1999 
                                       useTop = 1;
2000 
                                 end
2001 
                        else
2002 
                           $display( "ERROR Prediction: intraProcessStep intraChroma dc unknown blockNum");
2003 
                        Bit#(10) topSum;
2004 
                        Bit#(10) leftSum;
2005 
                        Bit#(11) totalSum;
2006 
                        if(blockHor[0] == 0)
2007 
                           topSum = zeroExtend(tempTopVec[0][15:8])+zeroExtend(tempTopVec[0][7:0])+zeroExtend(tempTopVec[1][15:8])+zeroExtend(tempTopVec[1][7:0])+2;
2008 
                        else
2009 
                           topSum = zeroExtend(tempTopVec[2][15:8])+zeroExtend(tempTopVec[2][7:0])+zeroExtend(tempTopVec[3][15:8])+zeroExtend(tempTopVec[3][7:0])+2;
2010 
                        if(blockVer[0] == 0)
2011 
                           leftSum = zeroExtend(tempLeftVec[1])+zeroExtend(tempLeftVec[2])+zeroExtend(tempLeftVec[3])+zeroExtend(tempLeftVec[4])+2;
2012 
                        else
2013 
                           leftSum = zeroExtend(tempLeftVec[5])+zeroExtend(tempLeftVec[6])+zeroExtend(tempLeftVec[7])+zeroExtend(tempLeftVec[8])+2;
2014 
                        totalSum = zeroExtend(topSum) + zeroExtend(leftSum);
2015 
                        if(useTop==1 && useLeft==1)
2016 
                           intraSumA <= zeroExtend(totalSum[10:3]);
2017 
                        else if(useTop==1)
2018 
                           intraSumA <= zeroExtend(topSum[9:2]);
2019 
                        else if(useLeft==1)
2020 
                           intraSumA <= zeroExtend(leftSum[9:2]);
2021 
                        else
2022 
                           intraSumA <= zeroExtend(8'b10000000);
2023 
                     end
2024 
                  else if(intraStepCount == 3)
2025 
                     begin
2026 
                        for(Integer pixelHor=0; pixelHor<4; pixelHor=pixelHor+1)
2027 
                           predVector[pixelHor] = intraSumA[7:0];
2028 
                        outFlag = 1;
2029 
                     end
2030 
                  else
2031 
                     $display( "ERROR Prediction: intraProcessStep intraChroma dc unknown intraStepCount");
2032 
               end
2033 
               1://horizontal
2034 
               begin
2035 
                  for(Integer pixelHor=0; pixelHor<4; pixelHor=pixelHor+1)
2036 
                     begin
2037 
                        Bit#(4) tempLeftIdx = {1'b0,blockVer[0],pixelVer} + 1;
2038 
                        predVector[pixelHor] = select(tempLeftVec,tempLeftIdx);
2039 
                     end
2040 
                  outFlag = 1;
2041 
               end
2042 
               2://vertical
2043 
               begin
2044 
                  for(Integer pixelHor=0; pixelHor<4; pixelHor=pixelHor+1)
2045 
                     begin
2046 
                        Bit#(2) pixelHorTemp = fromInteger(pixelHor);
2047 
                        Bit#(16) tempTopVal = select(tempTopVec,{blockHor[0],pixelHorTemp[1]});
2048 
                        if(pixelHorTemp[0] == 0)
2049 
                           predVector[pixelHor] = tempTopVal[7:0];
2050 
                        else
2051 
                           predVector[pixelHor] = tempTopVal[15:8];
2052 
                     end
2053 
                  outFlag = 1;
2054 
               end
2055 
               3://plane
2056 
               begin
2057 
                  if(intraStepCount == 2)
2058 
                     begin
2059 
                        Bit#(16) topValSet = tempTopVec[3];
2060 
                        Bit#(8) topVal = topValSet[15:8];
2061 
                        Bit#(8) leftVal = tempLeftVec[8];
2062 
                        Bit#(13) tempVal = zeroExtend(topVal) + zeroExtend(leftVal);
2063 
                        intraSumA <= tempVal << 4;
2064 
                        intraSumB <= 0;
2065 
                        intraSumC <= 0;
2066 
                     end
2067 
                  else if(intraStepCount < 7)
2068 
                     begin
2069 
                        Bit#(3) xyPlusOne = truncate(intraStepCount)-2;
2070 
                        Bit#(3) xyPlusFour = truncate(intraStepCount)+1;
2071 
                        Bit#(4) twoMinusXY = 5-intraStepCount;
2072 
                        Bit#(16) topValSet1 = select(tempTopVec,xyPlusFour[2:1]);
2073 
                        Bit#(8) topVal1 = select16to8(topValSet1,xyPlusFour[0]);
2074 
                        Bit#(4) tempLeftIdx1 = {1'b0,xyPlusFour} + 1;
2075 
                        Bit#(8) leftVal1 = select(tempLeftVec,tempLeftIdx1);
2076 
 
2077 
                        Bit#(16) topValSet2 = select(tempTopVec,twoMinusXY[2:1]);
2078 
                        Bit#(8) topVal2;
2079 
                        Bit#(8) leftVal2 = select(tempLeftVec,twoMinusXY+1);
2080 
                        if(intraStepCount==6)
2081 
                           topVal2 = leftVal2;
2082 
                        else
2083 
                           topVal2 = select16to8(topValSet2,twoMinusXY[0]);
2084 
                        Bit#(15) diffH = zeroExtend(topVal1) - zeroExtend(topVal2);
2085 
                        Bit#(15) diffV = zeroExtend(leftVal1) - zeroExtend(leftVal2);
2086 
                        intraSumB <= intraSumB + (zeroExtend(xyPlusOne) * diffH);
2087 
                        intraSumC <= intraSumC + (zeroExtend(xyPlusOne) * diffV);
2088 
                        Int#(15) tempDisplayH = unpack(zeroExtend(xyPlusOne) * diffH);
2089 
                        Int#(15) tempDisplayV = unpack(zeroExtend(xyPlusOne) * diffV);
2090 
                        //$display( "TRACE Prediction: intraProcessStep intraChroma plane partH partV %0d %0d",tempDisplayH,tempDisplayV);////////////////////
2091 
                     end
2092 
                  else if(intraStepCount == 7)
2093 
                     begin
2094 
                        Int#(15) tempDisplayH = unpack(intraSumB);
2095 
                        Int#(15) tempDisplayV = unpack(intraSumC);
2096 
                        //$display( "TRACE Prediction: intraProcessStep intraChroma plane H V %0d %0d",tempDisplayH,tempDisplayV);////////////////////
2097 
                        Bit#(19) tempSumB = (34*signExtend(intraSumB)) + 32;
2098 
                        Bit#(19) tempSumC = (34*signExtend(intraSumC)) + 32;
2099 
                        intraSumB <= signExtend(tempSumB[18:6]);
2100 
                        intraSumC <= signExtend(tempSumC[18:6]);
2101 
                     end
2102 
                  else if(intraStepCount == 8)
2103 
                     begin
2104 
                        for(Integer pixelHor=0; pixelHor<4; pixelHor=pixelHor+1)
2105 
                           begin
2106 
                              Bit#(4)  positionHor = {1'b0,blockHor[0],fromInteger(pixelHor)};
2107 
                              Bit#(4)  positionVer = {1'b0,blockVer[0],pixelVer};
2108 
                              Bit#(17) tempProductB = signExtend(intraSumB) * signExtend(positionHor-3);
2109 
                              Bit#(17) tempProductC = signExtend(intraSumC) * signExtend(positionVer-3);
2110 
                              Bit#(17) tempTotal = tempProductB + tempProductC + zeroExtend(intraSumA) + 16;
2111 
                              if(tempTotal[16]==1)
2112 
                                 predVector[pixelHor] = 0;
2113 
                              else if(tempTotal[15:5] > 255)
2114 
                                 predVector[pixelHor] = 255;
2115 
                              else
2116 
                                 predVector[pixelHor] = tempTotal[12:5];
2117 
                           end
2118 
                        outFlag = 1;
2119 
                     end
2120 
                  else
2121 
                     $display( "ERROR Prediction: intraProcessStep intraChroma plane unknown intraStepCount");
2122 
               end
2123 
            endcase
2124 
         end
2125 
      else
2126 
         $display( "ERROR Prediction: intraProcessStep unknown intrastate");
2127 
 
2128 
      if(outFlag==1)
2129 
         begin
2130 
            predictedfifo.enq(predVector);
2131 
            pixelNum <= pixelNum+4;
2132 
            if(pixelNum == 12)
2133 
               begin
2134 
                  if(intraChromaFlag==0)
2135 
                     begin
2136 
                        blockNum <= blockNum+1;
2137 
                        if(blockNum == 15)
2138 
                           begin
2139 
                              intraChromaFlag <= 1;
2140 
                              intraStepCount <= 2;
2141 
                           end
2142 
                        else if(intrastate==Intra4x4)
2143 
                           intraStepCount <= 1;
2144 
                     end
2145 
                  else
2146 
                     begin
2147 
                        if(blockNum == 7)
2148 
                           begin
2149 
                              blockNum <= 0;
2150 
                              intraChromaFlag <= 0;
2151 
                              intraStepCount <= 0;
2152 
                              intra_chroma_pred_mode.deq();
2153 
                           end
2154 
                        else
2155 
                           begin
2156 
                              blockNum <= blockNum+1;
2157 
                              if(intra_chroma_pred_mode.first()==0)
2158 
                                 intraStepCount <= 2;
2159 
                              else if(blockNum==3)
2160 
                                 intraStepCount <= 2;
2161 
                           end
2162 
                     end
2163 
               end
2164 
         end
2165 
      else
2166 
         intraStepCount <= nextIntraStepCount;
2167 
      //$display( "Trace Prediction: intraProcessStep");
2168 
   endrule
2169 
 
2170 
 
2171 
 
2172 
   interface Client mem_client_intra;
2173 
      interface Get request  = fifoToGet(intraMemReqQ);
2174 
      interface Put response = fifoToPut(intraMemRespQ);
2175 
   endinterface
2176 
   interface Client mem_client_inter;
2177 
      interface Get request  = fifoToGet(interMemReqQ);
2178 
      interface Put response = fifoToPut(interMemRespQ);
2179 
   endinterface
2180 
   interface Client mem_client_buffer = interpolator.mem_client;
2181 
 
2182 
   interface Put ioin  = fifoToPut(infifo);
2183 
   interface Put ioin_InverseTrans  = fifoToPut(infifo_ITB);
2184 
   interface Get ioout = fifoToGet(outfifo);
2185 
 
2186 
 
2187 
endmodule
2188 
 
2189 
endpackage

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