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[/] [bluespec-h264/] [trunk/] [src/] [mkPrediction_intra32.bsv] - Blame information for rev 15

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Line No. Rev Author Line
1 2 jamey.hick 
//**********************************************************************
2 
// Prediction
3 
//----------------------------------------------------------------------
4 15 jamey.hick 
// Sections 8.3 and 8.4 in spec
5 2 jamey.hick 
//
6 15 jamey.hick 
// Intra prediction processes 4 samples per cycle
7 
// Can be modified (parametrized) to process 1, 2, or 4 samples per cycle
8 2 jamey.hick 
//
9 
 
10 
package mkPrediction;
11 
 
12 
import H264Types::*;
13 
 
14 
import IPrediction::*;
15 
import IInterpolator::*;
16 
import mkInterpolator::*;
17 
import FIFO::*;
18 
import FIFOF::*;
19 
import Vector::*;
20 
 
21 
import Connectable::*;
22 
import GetPut::*;
23 
import ClientServer::*;
24 
 
25 
 
26 
//-----------------------------------------------------------
27 
// Local Datatypes
28 
//-----------------------------------------------------------
29 
 
30 
typedef union tagged
31 
{
32 
 void     Intra;            //Intra non-4x4
33 
 void     Intra4x4;
34 
 void     Inter;
35 
}
36 
OutState deriving(Eq,Bits);
37 
 
38 
typedef union tagged
39 
{
40 
 void     Start;            //not working on anything in particular
41 
 void     Intra16x16;
42 
 void     Intra4x4;
43 
 void     IntraPCM;
44 
}
45 
IntraState deriving(Eq,Bits);
46 
 
47 
typedef union tagged
48 
{
49 
 void     Start;            //not working on anything in particular
50 
 void     InterP16x16;
51 
 void     InterP16x8;
52 
 void     InterP8x16;
53 
 void     InterP8x8;
54 
 void     InterP8x8ref0;
55 
 void     InterPskip;
56 
}
57 
InterState deriving(Eq,Bits);
58 
 
59 
typedef union tagged
60 
{
61 
 Bit#(1) NotInter;//0 for not available, 1 for intra-coded
62 
 struct {Bit#(4) refIdx; Bit#(14) mvhor; Bit#(12) mvver; Bit#(1) nonZeroTransCoeff;} BlockMv;
63 
}
64 
InterBlockMv deriving(Eq,Bits);
65 
 
66 
typedef union tagged
67 
{
68 
 void SkipMB;
69 
 void NonSkipMB;
70 
 void Intra4x4;
71 
 void Intra4x4PlusChroma;
72 
}
73 
NextOutput deriving(Eq,Bits);
74 
 
75 
 
76 
 
77 
//-----------------------------------------------------------
78 
// Helper functions
79 
 
80 
function Bit#(8) intra4x4SelectTop( Bit#(72) valVector, Bit#(4) idx );
81 
   case(idx)
82 
      0: return valVector[15:8];
83 
      1: return valVector[23:16];
84 
      2: return valVector[31:24];
85 
      3: return valVector[39:32];
86 
      4: return valVector[47:40];
87 
      5: return valVector[55:48];
88 
      6: return valVector[63:56];
89 
      7: return valVector[71:64];
90 
      default: return valVector[7:0];
91 
   endcase
92 
endfunction
93 
 
94 
function Bit#(8) intra4x4SelectLeft( Bit#(40) valVector, Bit#(3) idx );
95 
   case(idx)
96 
      0: return valVector[15:8];
97 
      1: return valVector[23:16];
98 
      2: return valVector[31:24];
99 
      3: return valVector[39:32];
100 
      default: return valVector[7:0];
101 
   endcase
102 
endfunction
103 
 
104 
function Bit#(8) select32to8( Bit#(32) valVector, Bit#(2) idx );
105 
   case(idx)
106 
      0: return valVector[7:0];
107 
      1: return valVector[15:8];
108 
      2: return valVector[23:16];
109 
      3: return valVector[31:24];
110 
   endcase
111 
endfunction
112 
 
113 
function Bit#(8) select16to8( Bit#(16) valVector, Bit#(1) idx );
114 
   case(idx)
115 
      0: return valVector[7:0];
116 
      1: return valVector[15:8];
117 
   endcase
118 
endfunction
119 
 
120 
function Bool absDiffGEFour14( Bit#(14) val1, Bit#(14) val2 );
121 
   Int#(15) int1 = unpack(signExtend(val1));
122 
   Int#(15) int2 = unpack(signExtend(val2));
123 
   if(int1>=int2)
124 
      return (int1 >= (int2+4));
125 
   else
126 
      return (int2 >= (int1+4));
127 
endfunction
128 
 
129 
function Bool absDiffGEFour12( Bit#(12) val1, Bit#(12) val2 );
130 
   Int#(13) int1 = unpack(signExtend(val1));
131 
   Int#(13) int2 = unpack(signExtend(val2));
132 
   if(int1>=int2)
133 
      return (int1 >= (int2+4));
134 
   else
135 
      return (int2 >= (int1+4));
136 
endfunction
137 
 
138 
 
139 
//-----------------------------------------------------------
140 
// Prediction Module
141 
//-----------------------------------------------------------
142 
 
143 
 
144 
(* synthesize *)
145 
module mkPrediction( IPrediction );
146 
 
147 
   //Common state
148 
   FIFO#(EntropyDecOT)   infifo     <- mkSizedFIFO(prediction_infifo_size);
149 
   FIFO#(InverseTransOT) infifo_ITB <- mkSizedFIFO(prediction_infifo_ITB_size);
150 
   FIFO#(EntropyDecOT)   outfifo    <- mkFIFO;
151 
   Reg#(Bool)            passFlag   <- mkReg(True);
152 
   Reg#(Bit#(4))         blockNum   <- mkReg(0);
153 
   Reg#(Bit#(4))         pixelNum   <- mkReg(0);
154 
 
155 
   Reg#(Bit#(PicWidthSz))  picWidth  <- mkReg(maxPicWidthInMB);
156 
   Reg#(Bit#(PicHeightSz)) picHeight <- mkReg(0);
157 
   Reg#(Bit#(PicAreaSz))   firstMb   <- mkReg(0);
158 
   Reg#(Bit#(PicAreaSz))   currMb    <- mkReg(0);
159 
   Reg#(Bit#(PicAreaSz))   currMbHor <- mkReg(0);//horizontal position of currMb
160 
   Reg#(Bit#(PicHeightSz)) currMbVer <- mkReg(0);//vertical position of currMb
161 
 
162 
   FIFOF#(OutState)   outstatefifo   <- mkFIFOF;
163 
   FIFOF#(NextOutput) nextoutputfifo <- mkFIFOF;
164 
   Reg#(Bit#(4))   outBlockNum    <- mkReg(0);
165 
   Reg#(Bit#(4))   outPixelNum    <- mkReg(0);
166 
   FIFO#(Vector#(4,Bit#(8))) predictedfifo  <- mkSizedFIFO(prediction_predictedfifo_size);
167 
   Reg#(Bit#(1))   outChromaFlag  <- mkReg(0);
168 
   Reg#(Bool)      outFirstQPFlag <- mkReg(False);
169 
 
170 
   DoNotFire donotfire <- mkDoNotFire();
171 
 
172 
   //Reg#(Vector#(16,Bit#(8))) workVector       <- mkRegU();
173 
 
174 
   //Inter state
175 
   Interpolator interpolator <- mkInterpolator();
176 
   Reg#(InterState) interstate <- mkReg(Start);
177 
   Reg#(Bit#(PicAreaSz)) interPskipCount <- mkReg(0);
178 
   Reg#(Vector#(5,InterBlockMv)) interTopVal <- mkRegU();
179 
   Reg#(Vector#(4,InterBlockMv)) interLeftVal <- mkRegU();
180 
   Reg#(Vector#(4,InterBlockMv)) interTopLeftVal <- mkRegU();
181 
   FIFO#(MemReq#(TAdd#(PicWidthSz,2),32)) interMemReqQ <- mkFIFO;
182 
   Reg#(MemReq#(TAdd#(PicWidthSz,2),32)) interMemReqQdelay <- mkRegU();
183 
   FIFO#(MemResp#(32))  interMemRespQ <- mkFIFO;
184 
   Reg#(Bit#(3)) interReqCount <- mkReg(0);
185 
   Reg#(Bit#(3)) interRespCount <- mkReg(0);
186 
 
187 
   Reg#(Bit#(1)) interStepCount <- mkReg(0);
188 
   Reg#(Bit#(2)) interMbPartNum <- mkReg(0);
189 
   Reg#(Bit#(2)) interSubMbPartNum <- mkReg(0);
190 
   Reg#(Bit#(2)) interPassingCount <- mkReg(0);
191 
   Reg#(Vector#(4,Bit#(4))) interRefIdxVector <- mkRegU();
192 
   Reg#(Vector#(4,Bit#(2))) interSubMbTypeVector <- mkRegU();
193 
   RFile1#(Bit#(4),Tuple2#(Bit#(14),Bit#(12))) interMvFile <- mkRFile1Full();
194 
   Reg#(Bit#(15)) interMvDiffTemp <- mkReg(0);
195 
   FIFO#(Tuple2#(Bit#(15),Bit#(13))) interMvDiff <- mkFIFO;
196 
   Reg#(Bit#(5)) interNewestMv <- mkReg(0);
197 
 
198 
   Reg#(Bit#(2)) interIPStepCount <- mkReg(0);
199 
   Reg#(Bit#(2)) interIPMbPartNum <- mkReg(0);
200 
   Reg#(Bit#(2)) interIPSubMbPartNum <- mkReg(0);
201 
 
202 
   Reg#(Bit#(PicWidthSz)) interCurrMbDiff <- mkReg(0);
203 
 
204 
   Reg#(Vector#(4,Bool)) interTopNonZeroTransCoeff <- mkRegU();
205 
   Reg#(Vector#(4,Bool)) interLeftNonZeroTransCoeff <- mkRegU();
206 
   FIFO#(Tuple2#(Bit#(2),Bit#(2))) interBSfifo <- mkSizedFIFO(32);
207 
   Reg#(Bool) interBSoutput <- mkReg(True);
208 
   FIFO#(InterBlockMv) interOutBlockMvfifo <- mkSizedFIFO(8);
209 
 
210 
 
211 
   //Intra state
212 
   Reg#(IntraState)     intrastate      <- mkReg(Start);
213 
   Reg#(Bit#(1))        intraChromaFlag <- mkReg(0);
214 
   FIFO#(MemReq#(TAdd#(PicWidthSz,2),68)) intraMemReqQ  <- mkFIFO;
215 
   Reg#(MemReq#(TAdd#(PicWidthSz,2),68)) intraMemReqQdelay <- mkRegU;
216 
   FIFO#(MemResp#(68))  intraMemRespQ <- mkFIFO;
217 
   Reg#(Vector#(4,Bit#(4))) intra4x4typeLeft <- mkRegU();//15=unavailable, 14=inter-MB, 13=intra-non-4x4
218 
   Reg#(Vector#(4,Bit#(4))) intra4x4typeTop  <- mkRegU();//15=unavailable, 14=inter-MB, 13=intra-non-4x4
219 
   Reg#(Bit#(1)) ppsconstrained_intra_pred_flag <- mkReg(0);
220 
   Reg#(Vector#(4,Bit#(40))) intraLeftVal <- mkRegU();
221 
   Reg#(Vector#(9,Bit#(8))) intraLeftValChroma0 <- mkRegU();
222 
   Reg#(Vector#(9,Bit#(8))) intraLeftValChroma1 <- mkRegU();
223 
   Reg#(Vector#(5,Bit#(32))) intraTopVal <- mkRegU();
224 
   Reg#(Vector#(4,Bit#(16))) intraTopValChroma0 <- mkRegU();
225 
   Reg#(Vector#(4,Bit#(16))) intraTopValChroma1 <- mkRegU();
226 
   Reg#(Bit#(32)) intraLeftValNext <- mkReg(0);
227 
   Reg#(Bit#(2)) intra16x16_pred_mode <- mkReg(0);
228 
   FIFO#(Bit#(4)) rem_intra4x4_pred_mode <- mkSizedFIFO(16);
229 
   FIFO#(Bit#(2)) intra_chroma_pred_mode <- mkFIFO;
230 
   Reg#(Bit#(4)) cur_intra4x4_pred_mode <- mkReg(0);
231 
   Reg#(Bit#(1)) intraChromaTopAvailable <- mkReg(0);
232 
   Reg#(Bit#(1)) intraChromaLeftAvailable <- mkReg(0);
233 
 
234 
   Reg#(Bit#(3)) intraReqCount <- mkReg(0);
235 
   Reg#(Bit#(3)) intraRespCount <- mkReg(0);
236 
   Reg#(Bit#(4)) intraStepCount <- mkReg(0);
237 
   Reg#(Bit#(13)) intraSumA <-  mkReg(0);
238 
   Reg#(Bit#(15)) intraSumB <-  mkReg(0);
239 
   Reg#(Bit#(15)) intraSumC <-  mkReg(0);
240 
 
241 
 
242 
 
243 
   //-----------------------------------------------------------
244 
   // Rules
245 
 
246 
   //////////////////////////////////////////////////////////////////////////////
247 
//   rule stateMonitor ( True );
248 
//      if(predictedfifo.notEmpty())
249 
//       $display( "TRACE Prediction: stateMonitor predictedfifo.first() %0d", predictedfifo.first());////////////////////
250 
//      if(infifo.first() matches tagged ITBresidual .xdata)
251 
//       $display( "TRACE Prediction: stateMonitor infifo.first() %0d", xdata);////////////////////
252 
//      if(infifo.first() matches tagged ITBresidual .xdata)
253 
//       $display( "TRACE Prediction: stateMonitor outBlockNum outPixelNum outChromaFlag %0d %0d", outBlockNum, outPixelNum, outChromaFlag);////////////////////
254 
//   endrule
255 
   //////////////////////////////////////////////////////////////////////////////
256 
 
257 
   rule passing ( passFlag && !outstatefifo.notEmpty() && currMbHor
258 
      $display( "Trace Prediction: passing infifo packed %h", pack(infifo.first()));
259 
      case (infifo.first()) matches
260 
         tagged NewUnit . xdata :
261 
            begin
262 
               infifo.deq();
263 
               outfifo.enq(infifo.first());
264 
               $display("ccl4newunit");
265 
               $display("ccl4rbspbyte %h", xdata);
266 
            end
267 
         tagged SPSpic_width_in_mbs .xdata :
268 
            begin
269 
               infifo.deq();
270 
               outfifo.enq(infifo.first());
271 
               picWidth <= xdata;
272 
               interpolator.setPicWidth(xdata);
273 
            end
274 
         tagged SPSpic_height_in_map_units .xdata :
275 
            begin
276 
               infifo.deq();
277 
               outfifo.enq(infifo.first());
278 
               picHeight <= xdata;
279 
               interpolator.setPicHeight(xdata);
280 
            end
281 
         tagged PPSconstrained_intra_pred_flag .xdata :
282 
            begin
283 
               infifo.deq();
284 
               ////outfifo.enq(infifo.first());
285 
               ppsconstrained_intra_pred_flag <= xdata;
286 
            end
287 
         tagged SHfirst_mb_in_slice .xdata :
288 
            begin
289 
               infifo.deq();
290 
               outfifo.enq(infifo.first());
291 
               firstMb   <= xdata;
292 
               currMb    <= xdata;
293 
               currMbHor <= xdata;
294 
               currMbVer <= 0;
295 
               intra4x4typeLeft <= replicate(15);
296 
               interTopLeftVal <= replicate(NotInter 0);
297 
               if(xdata==0)
298 
                  interLeftVal <= replicate(NotInter 0);
299 
               outFirstQPFlag <= True;
300 
            end
301 
         tagged SDmb_skip_run .xdata : passFlag <= False;
302 
         tagged SDMmbtype .xdata : passFlag <= False;
303 
         tagged EndOfFile :
304 
            begin
305 
               infifo.deq();
306 
               outfifo.enq(infifo.first());
307 
               $display( "INFO Prediction: EndOfFile reached" );
308 
               //$finish(0);////////////////////////////////
309 
            end
310 
         default:
311 
            begin
312 
               infifo.deq();
313 
               outfifo.enq(infifo.first());
314 
            end
315 
      endcase
316 
   endrule
317 
 
318 
 
319 
   rule inputing ( !passFlag );
320 
      $display( "Trace Prediction: inputing infifo packed %h", pack(infifo.first()));
321 
      case (infifo.first()) matches
322 
         tagged SDmb_skip_run .xdata :
323 
            begin
324 
               if(interstate==Start && intrastate==Start)
325 
                  begin
326 
                     if(interPskipCount < xdata)
327 
                        begin
328 
                           if(!outstatefifo.notEmpty() || interCurrMbDiff
329 
                              begin
330 
                                 $display( "Trace Prediction: passing SDmb_skip_run %0d", xdata);
331 
                                 outstatefifo.enq(Inter);
332 
                                 interstate <= InterPskip;
333 
                                 interReqCount <= 1;
334 
                                 interRespCount <= 1;
335 
                                 intra4x4typeLeft <= replicate(14);
336 
                                 intra4x4typeTop <= replicate(14);
337 
                                 interTopLeftVal <= update(interTopLeftVal , 0, (NotInter 0));
338 
                                 interTopVal <= replicate(NotInter 0);
339 
                                 interPskipCount <= interPskipCount+1;
340 
                                 interNewestMv <= 0;
341 
                                 interRefIdxVector <= replicate(0);
342 
                                 interCurrMbDiff <= interCurrMbDiff+1;
343 
                                 nextoutputfifo.enq(SkipMB);
344 
                              end
345 
                           else
346 
                              donotfire.doNotFire();
347 
                        end
348 
                     else
349 
                        begin
350 
                           $display( "Trace Prediction: passing no SDmb_skip_run");
351 
                           interPskipCount <= 0;
352 
                           infifo.deq();
353 
                        end
354 
                  end
355 
               else
356 
                  donotfire.doNotFire();
357 
            end
358 
         tagged SDMmbtype .xdata :
359 
            begin
360 
               if(interstate==Start && intrastate==Start)//not necessary (just need to keep inter from feeding predictedfifo or change intra state until intrastate==Start)
361 
                  begin
362 
                     infifo.deq();
363 
                     $display( "INFO Prediction: SDMmbtype %0d", xdata);
364 
                     if(mbPartPredMode(xdata,0)==Intra_16x16)
365 
                        begin
366 
                           if(!outstatefifo.notEmpty())
367 
                              begin
368 
                                 outstatefifo.enq(Intra);
369 
                                 intrastate <= Intra16x16;
370 
                                 if(xdata matches tagged I_16x16 {intra16x16PredMode:.tempv1, codedBlockPatternChroma:.tempv2, codedBlockPatternLuma:.tempv3})
371 
                                    intra16x16_pred_mode <= tempv1;
372 
                                 else
373 
                                    $display( "ERROR Prediction: MacroblockLayer 5 sdmmbtype not I_16x16" );
374 
                                 intraReqCount <= 1;
375 
                                 intraRespCount <= 1;
376 
                                 interTopLeftVal <= replicate(NotInter 1);
377 
                                 interLeftVal <= replicate(NotInter 1);
378 
                                 interTopVal <= replicate(NotInter 1);
379 
                              end
380 
                           else
381 
                              donotfire.doNotFire();
382 
                        end
383 
                     else if(xdata==I_NxN)
384 
                        begin
385 
                           if(!outstatefifo.notEmpty())
386 
                              begin
387 
                                 outstatefifo.enq(Intra4x4);
388 
                                 intrastate <= Intra4x4;
389 
                                 intraReqCount <= 1;
390 
                                 intraRespCount <= 1;
391 
                                 interTopLeftVal <= replicate(NotInter 1);
392 
                                 interLeftVal <= replicate(NotInter 1);
393 
                                 interTopVal <= replicate(NotInter 1);
394 
                              end
395 
                           else
396 
                              donotfire.doNotFire();
397 
                        end
398 
                     else if(xdata==I_PCM)
399 
                        begin
400 
                           $display( "ERROR Prediction: I_PCM not implemented yet");
401 
                           $finish;////////////////////////////////////////////////////////////////////////////////////////
402 
                           intra4x4typeLeft <= replicate(13);
403 
                           intra4x4typeTop <= replicate(13);
404 
                           interTopLeftVal <= replicate(NotInter 1);
405 
                           interLeftVal <= replicate(NotInter 1);
406 
                           interTopVal <= replicate(NotInter 1);
407 
                        end
408 
                     else
409 
                        begin
410 
                           if(!outstatefifo.notEmpty() || interCurrMbDiff
411 
                              begin
412 
                                 outstatefifo.enq(Inter);
413 
                                 case(xdata)
414 
                                    P_L0_16x16: interstate <= InterP16x16;
415 
                                    P_L0_L0_16x8: interstate <= InterP16x8;
416 
                                    P_L0_L0_8x16: interstate <= InterP8x16;
417 
                                    P_8x8: interstate <= InterP8x8;
418 
                                    P_8x8ref0: interstate <= InterP8x8ref0;
419 
                                    default: $display( "ERROR Prediction: passing SDMmbtype inter prediction unknown mbtype");
420 
                                 endcase
421 
                                 interReqCount <= 1;
422 
                                 interRespCount <= 1;
423 
                                 intra4x4typeLeft <= replicate(14);/////////////////////////////////////////////////////////////////////////////
424 
                                 intra4x4typeTop <= replicate(14);
425 
                                 interTopLeftVal <= update(interTopLeftVal , 0, (NotInter 0));
426 
                                 interTopVal <= replicate(NotInter 0);
427 
                                 interNewestMv <= 0;
428 
                                 interRefIdxVector <= replicate(0);
429 
                                 nextoutputfifo.enq(NonSkipMB);
430 
                              end
431 
                           else
432 
                              donotfire.doNotFire();
433 
                        end
434 
                     interCurrMbDiff <= interCurrMbDiff+1;
435 
                  end
436 
               else
437 
                  donotfire.doNotFire();
438 
            end
439 
         tagged SDMMrem_intra4x4_pred_mode .xdata :
440 
            begin
441 
               infifo.deq();
442 
               ////outfifo.enq(infifo.first());
443 
               rem_intra4x4_pred_mode.enq(xdata);
444 
            end
445 
         tagged SDMMintra_chroma_pred_mode .xdata :
446 
            begin
447 
               infifo.deq();
448 
               ////outfifo.enq(infifo.first());
449 
               intra_chroma_pred_mode.enq(xdata);
450 
            end
451 
         tagged SDMMref_idx_l0 .xdata :
452 
            begin
453 
               infifo.deq();
454 
               ////outfifo.enq(infifo.first());
455 
               interRefIdxVector <= update(interRefIdxVector,interPassingCount,xdata[3:0]);
456 
               if(interstate==InterP16x16 || interPassingCount==1)
457 
                  interPassingCount <= 0;
458 
               else
459 
                  interPassingCount <= interPassingCount+1;
460 
            end
461 
         tagged SDMMmvd_l0 .xdata :
462 
            begin
463 
               infifo.deq();
464 
               ////outfifo.enq(infifo.first());
465 
               if(interPassingCount==1)
466 
                  begin
467 
                     Bit#(13) interMvDiffTemp2 = truncate(xdata);
468 
                     interMvDiff.enq(tuple2(interMvDiffTemp,interMvDiffTemp2));
469 
                     interPassingCount <= 0;
470 
                  end
471 
               else
472 
                  begin
473 
                     interMvDiffTemp <= truncate(xdata);
474 
                     interPassingCount <= interPassingCount+1;
475 
                  end
476 
            end
477 
         tagged SDMSsub_mb_type .xdata :
478 
            begin
479 
               infifo.deq();
480 
               ////outfifo.enq(infifo.first());
481 
               interSubMbTypeVector <= update(interSubMbTypeVector,interPassingCount,xdata);
482 
               interPassingCount <= interPassingCount+1;
483 
            end
484 
         tagged SDMSref_idx_l0 .xdata :
485 
            begin
486 
               infifo.deq();
487 
               ////outfifo.enq(infifo.first());
488 
               interRefIdxVector <= update(interRefIdxVector,interPassingCount,xdata[3:0]);
489 
               interPassingCount <= interPassingCount+1;
490 
            end
491 
         tagged SDMSmvd_l0 .xdata :
492 
            begin
493 
               infifo.deq();
494 
               ////outfifo.enq(infifo.first());
495 
               if(interPassingCount==1)
496 
                  begin
497 
                     Bit#(13) interMvDiffTemp2 = truncate(xdata);
498 
                     interMvDiff.enq(tuple2(interMvDiffTemp,interMvDiffTemp2));
499 
                     interPassingCount <= 0;
500 
                  end
501 
               else
502 
                  begin
503 
                     interMvDiffTemp <= truncate(xdata);
504 
                     interPassingCount <= interPassingCount+1;
505 
                  end
506 
            end
507 
         default: passFlag <= True;
508 
      endcase
509 
   endrule
510 
 
511 
 
512 
   rule outputing ( currMbHor
513 
      Bit#(1) outputFlag = 0;
514 
      Vector#(4,Bit#(8)) outputVector = replicate(0);
515 
      Bit#(2) blockHor = {outBlockNum[2],outBlockNum[0]};
516 
      Bit#(2) blockVer = {outBlockNum[3],outBlockNum[1]};
517 
      Bit#(2) pixelVer = {outPixelNum[3],outPixelNum[2]};
518 
      Bit#(4) totalVer = {blockVer,pixelVer};
519 
      //$display( "Trace Prediction: outputing" );
520 
      if(outFirstQPFlag)
521 
         begin
522 
            if(infifo_ITB.first() matches tagged IBTmb_qp .xdata)
523 
               begin
524 
                  infifo_ITB.deq();
525 
                  outfifo.enq(IBTmb_qp {qpy:xdata.qpy,qpc:xdata.qpc});
526 
                  outFirstQPFlag <= False;
527 
                  $display( "Trace Prediction: outputing outFirstQP %h %h %h", outBlockNum, outPixelNum, xdata);
528 
               end
529 
            else
530 
               $display( "ERROR Prediction: outputing unexpected infifo_ITB.first()");
531 
         end
532 
      else if(nextoutputfifo.first() == SkipMB)
533 
         begin
534 
            if(interBSoutput && outChromaFlag==0 && outPixelNum==0)
535 
               begin
536 
                  interBSoutput <= False;
537 
                  interBSfifo.deq();
538 
                  Bit#(2) tempHorBS = tpl_1(interBSfifo.first());
539 
                  Bit#(2) tempVerBS = tpl_2(interBSfifo.first());
540 
                  Bit#(3) horBS = (tempHorBS==3 ? 4 : (interLeftNonZeroTransCoeff[blockVer] ? 2 : zeroExtend(tempHorBS)));
541 
                  Bit#(3) verBS = (tempVerBS==3 ? 4 : (interTopNonZeroTransCoeff[blockHor]&&blockVer!=0 ? 2 : zeroExtend(tempVerBS)));
542 
                  outfifo.enq(PBbS {bShor:horBS,bSver:verBS});
543 
                  interLeftNonZeroTransCoeff <= update(interLeftNonZeroTransCoeff, blockVer, False);
544 
                  interTopNonZeroTransCoeff <= update(interTopNonZeroTransCoeff, blockHor, False);
545 
                  $display( "Trace Prediction: outputing SkipMB bS %h %h %h %h", outBlockNum, outPixelNum, currMbHor, currMbVer);
546 
               end
547 
            else
548 
               begin
549 
                  interBSoutput <= True;
550 
                  outputVector = predictedfifo.first();
551 
                  outfifo.enq(PBoutput outputVector);
552 
                  outputFlag = 1;
553 
                  predictedfifo.deq();
554 
                  $display( "Trace Prediction: outputing SkipMB out %h %h %h", outBlockNum, outPixelNum, outputVector);
555 
               end
556 
         end
557 
      else
558 
         begin
559 
            case ( infifo_ITB.first() ) matches
560 
               tagged IBTmb_qp .xdata :
561 
                  begin
562 
                     infifo_ITB.deq();
563 
                     outfifo.enq(IBTmb_qp {qpy:xdata.qpy,qpc:xdata.qpc});
564 
                     outFirstQPFlag <= False;
565 
                     $display( "Trace Prediction: outputing ITBmb_qp %h %h %h", outBlockNum, outPixelNum, xdata);
566 
                  end
567 
               tagged ITBresidual .xdata :
568 
                  begin
569 
                     if(interBSoutput && outChromaFlag==0 && outPixelNum==0)
570 
                        begin
571 
                           interBSoutput <= False;
572 
                           if(outstatefifo.first() != Inter)
573 
                              outfifo.enq(PBbS {bShor:(blockHor==0 ? 4 : 3),bSver:(blockVer==0 ? 4 : 3)});
574 
                           else
575 
                              begin
576 
                                 interBSfifo.deq();
577 
                                 Bit#(2) tempHorBS = tpl_1(interBSfifo.first());
578 
                                 Bit#(2) tempVerBS = tpl_2(interBSfifo.first());
579 
                                 Bit#(3) horBS = (tempHorBS==3 ? 4 : 2);
580 
                                 Bit#(3) verBS = (tempVerBS==3 ? 4 : 2);
581 
                                 outfifo.enq(PBbS {bShor:horBS,bSver:verBS});
582 
                              end
583 
                           interLeftNonZeroTransCoeff <= update(interLeftNonZeroTransCoeff, blockVer, True);
584 
                           interTopNonZeroTransCoeff <= update(interTopNonZeroTransCoeff, blockHor, True);
585 
                           $display( "Trace Prediction: outputing ITBresidual bS %h %h %h %h %h", outChromaFlag, outBlockNum, outPixelNum, currMbHor, currMbVer);
586 
                        end
587 
                     else
588 
                        begin
589 
                           interBSoutput <= True;
590 
                           Bit#(11) tempOutputValue = 0;
591 
                           for(Integer ii=0; ii<4; ii=ii+1)
592 
                              begin
593 
                                 tempOutputValue = signExtend(xdata[ii]) + zeroExtend((predictedfifo.first())[ii]);
594 
                                 if(tempOutputValue[10]==1)
595 
                                    outputVector[ii] = 0;
596 
                                 else if(tempOutputValue[9:0] > 255)
597 
                                    outputVector[ii] = 255;
598 
                                 else
599 
                                    outputVector[ii] = tempOutputValue[7:0];
600 
                              end
601 
                           outfifo.enq(PBoutput outputVector);
602 
                           infifo_ITB.deq();
603 
                           predictedfifo.deq();
604 
                           outputFlag = 1;
605 
                           $display( "Trace Prediction: outputing ITBresidual out %h %h %h %h %h %h", outChromaFlag, outBlockNum, outPixelNum, predictedfifo.first(), xdata, outputVector);
606 
                        end
607 
                  end
608 
               tagged ITBcoeffLevelZeros :
609 
                  begin
610 
                     if(interBSoutput && outChromaFlag==0 && outPixelNum==0)
611 
                        begin
612 
                           interBSoutput <= False;
613 
                           if(outstatefifo.first() != Inter)
614 
                              outfifo.enq(PBbS {bShor:(blockHor==0 ? 4 : 3),bSver:(blockVer==0 ? 4 : 3)});
615 
                           else
616 
                              begin
617 
                                 interBSfifo.deq();
618 
                                 Bit#(2) tempHorBS = tpl_1(interBSfifo.first());
619 
                                 Bit#(2) tempVerBS = tpl_2(interBSfifo.first());
620 
                                 Bit#(3) horBS = (tempHorBS==3 ? 4 : (interLeftNonZeroTransCoeff[blockVer] ? 2 : zeroExtend(tempHorBS)));
621 
                                 Bit#(3) verBS = (tempVerBS==3 ? 4 : (interTopNonZeroTransCoeff[blockHor]&&blockVer!=0 ? 2 : zeroExtend(tempVerBS)));
622 
                                 outfifo.enq(PBbS {bShor:horBS,bSver:verBS});
623 
                              end
624 
                           interLeftNonZeroTransCoeff <= update(interLeftNonZeroTransCoeff, blockVer, False);
625 
                           interTopNonZeroTransCoeff <= update(interTopNonZeroTransCoeff, blockHor, False);
626 
                           $display( "Trace Prediction: outputing ITBcoeffLevelZeros bS %h %h %h %h %h", outChromaFlag, outBlockNum, outPixelNum, currMbHor, currMbVer);
627 
                        end
628 
                     else
629 
                        begin
630 
                           interBSoutput <= True;
631 
                           if(outPixelNum == 12)
632 
                              infifo_ITB.deq();
633 
                           outputVector = predictedfifo.first();
634 
                           outfifo.enq(PBoutput outputVector);
635 
                           outputFlag = 1;
636 
                           predictedfifo.deq();
637 
                           $display( "Trace Prediction: outputing ITBcoeffLevelZeros out %h %h %h %h %h", outChromaFlag, outBlockNum, outPixelNum, predictedfifo.first(), outputVector);
638 
                        end
639 
                  end
640 
               default: $display( "ERROR Prediction: outputing unknown infifo_ITB input" );
641 
            endcase
642 
         end
643 
 
644 
      if(outputFlag == 1)
645 
         begin
646 
            $display("ccl4PBoutput %0d", outputVector[0]);
647 
            $display("ccl4PBoutput %0d", outputVector[1]);
648 
            $display("ccl4PBoutput %0d", outputVector[2]);
649 
            $display("ccl4PBoutput %0d", outputVector[3]);
650 
 
651 
            if(outBlockNum==0 && pixelVer==0 && outChromaFlag==0 && currMb!=firstMb && picWidth>1)
652 
               begin
653 
                  intraMemReqQ.enq(intraMemReqQdelay);
654 
                  interMemReqQ.enq(interMemReqQdelay);
655 
                  //$display( "TRACE Prediction: passing storing addr data");//////////////////
656 
               end
657 
 
658 
            if(blockHor==3 || (blockHor[0]==1 && outChromaFlag==1) || (outstatefifo.first()==Intra4x4 && outChromaFlag==0))
659 
               begin
660 
                  if(outChromaFlag==0)
661 
                     begin
662 
                        Bit#(32) intraLeftValNextTemp = intraLeftValNext;
663 
                        if(totalVer==0 || (outstatefifo.first()==Intra4x4 && pixelVer==0))
664 
                           begin
665 
                              Bit#(32) tempValSet = select(intraTopVal,zeroExtend(blockHor));
666 
                              intraLeftValNextTemp = zeroExtend(tempValSet[31:24]);
667 
                           end
668 
                        case(pixelVer)
669 
                           0:intraLeftValNext <= {intraLeftValNextTemp[31:16],outputVector[3],intraLeftValNextTemp[7:0]};
670 
                           1:intraLeftValNext <= {intraLeftValNextTemp[31:24],outputVector[3],intraLeftValNextTemp[15:0]};
671 
                           2:intraLeftValNext <= {outputVector[3],intraLeftValNextTemp[23:0]};
672 
                           3:
673 
                           begin
674 
                              intraLeftVal <= update(intraLeftVal,blockVer,{outputVector[3],intraLeftValNextTemp});
675 
                              intraLeftValNext <= zeroExtend(outputVector[3]);
676 
                              if(outstatefifo.first()==Intra4x4)
677 
                                 intra4x4typeLeft <= update(intra4x4typeLeft,blockVer,cur_intra4x4_pred_mode);
678 
                              else if(outstatefifo.first()==Intra)
679 
                                 intra4x4typeLeft <= update(intra4x4typeLeft,blockVer,13);
680 
                              else
681 
                                 intra4x4typeLeft <= update(intra4x4typeLeft,blockVer,14);
682 
                           end
683 
                        endcase
684 
                     end
685 
                  else
686 
                     begin
687 
                        if(outBlockNum[2]==0)
688 
                           intraLeftValChroma0 <= update(intraLeftValChroma0,totalVer+1,outputVector[3]);
689 
                        else
690 
                           intraLeftValChroma1 <= update(intraLeftValChroma1,totalVer+1,outputVector[3]);
691 
                     end
692 
               end
693 
 
694 
            if(pixelVer==3 && (blockVer==3 || (blockVer[0]==1 && outChromaFlag==1) || (outstatefifo.first()==Intra4x4 && outChromaFlag==0)))
695 
               begin
696 
                  if(outChromaFlag==0)
697 
                     begin
698 
                        intraTopVal <= update(intraTopVal,zeroExtend(blockHor),{outputVector[3],outputVector[2],outputVector[1],outputVector[0]});
699 
                        if(outstatefifo.first()==Intra4x4)
700 
                           intra4x4typeTop <= update(intra4x4typeTop,blockHor,cur_intra4x4_pred_mode);
701 
                        else if(outstatefifo.first()==Intra)
702 
                           intra4x4typeTop <= update(intra4x4typeTop,blockHor,13);
703 
                        else
704 
                           intra4x4typeTop <= update(intra4x4typeTop,blockHor,14);
705 
                     end
706 
                  else
707 
                     begin
708 
                        if(outBlockNum[2]==0)
709 
                           begin
710 
                              Vector#(4,Bit#(16)) intraTopValChroma0Next = intraTopValChroma0;
711 
                              intraTopValChroma0Next[{blockHor[0],1'b0}] = {outputVector[1],outputVector[0]};
712 
                              intraTopValChroma0Next[{blockHor[0],1'b1}] = {outputVector[3],outputVector[2]};
713 
                              intraTopValChroma0 <= intraTopValChroma0Next;
714 
                           end
715 
                        else
716 
                           begin
717 
                              Vector#(4,Bit#(16)) intraTopValChroma1Next = intraTopValChroma1;
718 
                              intraTopValChroma1Next[{blockHor[0],1'b0}] = {outputVector[1],outputVector[0]};
719 
                              intraTopValChroma1Next[{blockHor[0],1'b1}] = {outputVector[3],outputVector[2]};
720 
                              intraTopValChroma1 <= intraTopValChroma1Next;
721 
                           end
722 
                     end
723 
               end
724 
 
725 
            if(outChromaFlag==1 && outBlockNum==7)
726 
               begin
727 
                  Bit#(PicWidthSz) tempStoreAddr = truncate(currMbHor);
728 
                  InterBlockMv outBlockMv = interOutBlockMvfifo.first();
729 
                  if(outBlockMv matches tagged BlockMv .bdata)
730 
                     begin
731 
                        outBlockMv = (BlockMv {refIdx:bdata.refIdx,mvhor:bdata.mvhor,mvver:bdata.mvver,nonZeroTransCoeff:(interTopNonZeroTransCoeff[pixelVer]?1:0)});
732 
                        interOutBlockMvfifo.deq();
733 
                     end
734 
                  else if(pixelVer==3)
735 
                     interOutBlockMvfifo.deq();
736 
                  if(pixelVer==3 && picWidth>1)
737 
                     interMemReqQdelay <= StoreReq {addr:{tempStoreAddr,pixelVer},data:pack(outBlockMv)};
738 
                  else
739 
                     interMemReqQ.enq(StoreReq {addr:{tempStoreAddr,pixelVer},data:pack(outBlockMv)});
740 
                  if(pixelVer>0)
741 
                     begin
742 
                        Bit#(4)  intra4x4typeTopStore = ((outstatefifo.first()==Inter) ? 14 : ((outstatefifo.first()!=Intra4x4) ? 13: intra4x4typeTop[(pixelVer-1)]));
743 
                        Bit#(32) intraTopValStore = intraTopVal[(pixelVer-1)];
744 
                        Bit#(16) intraTopValChroma0Store = intraTopValChroma0[(pixelVer-1)];
745 
                        Bit#(16) intraTopValChroma1Store = (pixelVer<3 ? intraTopValChroma1[(pixelVer-1)] : {outputVector[1],outputVector[0]});
746 
                        Bit#(68) intraStore = {intra4x4typeTopStore,intraTopValChroma1Store,intraTopValChroma0Store,intraTopValStore};
747 
                        intraMemReqQ.enq(StoreReq {addr:{tempStoreAddr,(pixelVer-1)},data:intraStore});
748 
                        if(pixelVer==3)
749 
                           begin
750 
                              intra4x4typeTopStore = ((outstatefifo.first()==Inter) ? 14 : ((outstatefifo.first()!=Intra4x4) ? 13: intra4x4typeTop[3]));
751 
                              intraTopValStore = intraTopVal[3];
752 
                              intraTopValChroma0Store = intraTopValChroma0[3];
753 
                              intraTopValChroma1Store = {outputVector[3],outputVector[2]};
754 
                              intraStore = {intra4x4typeTopStore,intraTopValChroma1Store,intraTopValChroma0Store,intraTopValStore};
755 
                              intraMemReqQdelay <= StoreReq {addr:{tempStoreAddr,2'b11},data:intraStore};
756 
                           end
757 
                     end
758 
               end
759 
            outPixelNum <= outPixelNum+4;
760 
            if(outPixelNum == 12)
761 
               begin
762 
                  if(outChromaFlag==0)
763 
                     begin
764 
                        outBlockNum <= outBlockNum+1;
765 
                        if(outBlockNum == 15)
766 
                           outChromaFlag <= 1;
767 
                        if(nextoutputfifo.first() == Intra4x4)
768 
                           nextoutputfifo.deq();
769 
                     end
770 
                  else
771 
                     begin
772 
                        if(outBlockNum == 7)
773 
                           begin
774 
                              outBlockNum <= 0;
775 
                              outChromaFlag <= 0;
776 
                              currMb <= currMb+1;
777 
                              currMbHor <= currMbHor+1;
778 
                              interCurrMbDiff <= interCurrMbDiff-1;
779 
                              outstatefifo.deq;
780 
                              intrastate <= Start;
781 
                              if(truncate(currMbHor)==picWidth-1 && currMbVer==picHeight-1)
782 
                                 interpolator.endOfFrame();
783 
                              nextoutputfifo.deq();
784 
                           end
785 
                        else
786 
                           outBlockNum <= outBlockNum+1;
787 
                     end
788 
               end
789 
         end
790 
   endrule
791 
 
792 
 
793 
   rule currMbHorUpdate( !(currMbHor
794 
      Bit#(PicAreaSz) temp = zeroExtend(picWidth);
795 
      if((currMbHor >> 3) >= temp)
796 
         begin
797 
            currMbHor <= currMbHor - (temp << 3);
798 
            currMbVer <= currMbVer + 8;
799 
         end
800 
      else
801 
         begin
802 
            currMbHor <= currMbHor - temp;
803 
            currMbVer <= currMbVer + 1;
804 
         end
805 
      //$display( "Trace Prediction: currMbHorUpdate %h %h", currMbHor, currMbVer);
806 
   endrule
807 
 
808 
 
809 
   // inter prediction rules
810 
 
811 
   rule interSendReq ( interReqCount>0 && currMbHor
812 
      Bit#(PicAreaSz) currMbHorTemp = currMbHor+zeroExtend(interCurrMbDiff)-1;
813 
      Bit#(PicAreaSz) currMbTemp = currMb+zeroExtend(interCurrMbDiff)-1;
814 
      if( currMbHorTemp >= zeroExtend(picWidth) )
815 
         currMbHorTemp = currMbHorTemp-zeroExtend(picWidth);
816 
      Bit#(PicWidthSz) temp2 = truncate(currMbHorTemp);
817 
      Bit#(TAdd#(PicWidthSz,2)) temp = 0;
818 
      Bool noMoreReq = False;
819 
      if( currMbTemp < zeroExtend(picWidth) )
820 
         noMoreReq = True;
821 
      else
822 
         begin
823 
            if(interReqCount<5)
824 
               begin
825 
                  Bit#(2) temp3 = truncate(interReqCount-1);
826 
                  temp = {temp2,temp3};
827 
               end
828 
            else if(interReqCount==5)
829 
               begin
830 
                  if((currMbHorTemp+1)
831 
                     temp = {(temp2+1),2'b00};
832 
                  else if(currMbHorTemp>0 && currMbTemp-firstMb>zeroExtend(picWidth))
833 
                     temp = {(temp2-1),2'b11};
834 
                  else
835 
                     noMoreReq = True;
836 
               end
837 
            else if(interReqCount==6)
838 
               begin
839 
                  if((currMbHorTemp+1)0 && currMbTemp-firstMb>zeroExtend(picWidth))
840 
                     temp = {(temp2-1),2'b11};
841 
                  else
842 
                     noMoreReq = True;
843 
               end
844 
            else
845 
               noMoreReq = True;
846 
         end
847 
      if(!noMoreReq)
848 
         begin
849 
            interMemReqQ.enq(LoadReq temp);
850 
            interReqCount <= interReqCount+1;
851 
            //$display( "TRACE Prediction: interSendReq addr %0d",temp);///////////////////////
852 
         end
853 
      else
854 
         interReqCount <= 0;
855 
      $display( "Trace Prediction: interSendReq %h %h %h", interstate, interReqCount, temp);
856 
   endrule
857 
 
858 
 
859 
   rule interReceiveNoResp ( interRespCount>0 && currMbHor
860 
      Bit#(PicAreaSz) currMbHorTemp = currMbHor+zeroExtend(interCurrMbDiff)-1;
861 
      if( currMbHorTemp >= zeroExtend(picWidth) )
862 
         currMbHorTemp = currMbHorTemp-zeroExtend(picWidth);
863 
      interRespCount <= 0;
864 
      interStepCount <= 1;
865 
      interIPStepCount <= 1;
866 
      if(currMbHorTemp == 0)
867 
         begin
868 
            interLeftVal <= replicate(NotInter 0);
869 
            interTopLeftVal <= replicate(NotInter 0);
870 
         end
871 
      $display( "Trace Prediction: interReceiveNoResp %h %h", interstate, interRespCount);
872 
   endrule
873 
 
874 
 
875 
   rule interReceiveResp ( interRespCount>0 && interRespCount<7 && currMbHor
876 
      Bit#(PicAreaSz) currMbHorTemp = currMbHor+zeroExtend(interCurrMbDiff)-1;
877 
      Bit#(PicAreaSz) currMbTemp = currMb+zeroExtend(interCurrMbDiff)-1;
878 
      if( currMbHorTemp >= zeroExtend(picWidth) )
879 
         currMbHorTemp = currMbHorTemp-zeroExtend(picWidth);
880 
      Bool noMoreResp = False;
881 
      Bit#(2) temp2bit = 0;
882 
      InterBlockMv unpackedData = unpack(data);
883 
      Vector#(5,InterBlockMv) interTopValNext = interTopVal;
884 
      Vector#(4,InterBlockMv) interTopLeftValNext = interTopLeftVal;
885 
      if(interRespCount<5)
886 
         begin
887 
            temp2bit = truncate(interRespCount-1);
888 
            interTopValNext[temp2bit] = unpackedData;
889 
            if((interRespCount==4 || (interRespCount==1 && (interstate==InterPskip || interstate==InterP16x16 || interstate==InterP16x8)))
890 
               && (!((currMbHorTemp+1)0 && currMbTemp-firstMb>zeroExtend(picWidth))))
891 
               noMoreResp = True;
892 
         end
893 
      else if(interRespCount==5)
894 
         begin
895 
            if((currMbHorTemp+1)
896 
               begin
897 
                  interTopValNext[4] = unpackedData;
898 
                  if(!(currMbHorTemp>0 && currMbTemp-firstMb>zeroExtend(picWidth)))
899 
                     noMoreResp = True;
900 
               end
901 
            else
902 
               begin
903 
                  interTopLeftValNext[0] = unpackedData;
904 
                  noMoreResp = True;
905 
               end
906 
         end
907 
      else
908 
         begin
909 
            interTopLeftValNext[0] = unpackedData;
910 
            noMoreResp = True;
911 
         end
912 
      interMemRespQ.deq();
913 
      //$display( "TRACE Prediction: interReceiveResp data %h",data);///////////////////////
914 
      if(!noMoreResp)
915 
         interRespCount <= interRespCount+1;
916 
      else
917 
         begin
918 
            interRespCount <= 0;
919 
            interStepCount <= 1;
920 
            interIPStepCount <= 1;
921 
            if(currMbHorTemp == 0)
922 
               begin
923 
                  interLeftVal <= replicate(NotInter 0);
924 
                  interTopLeftValNext = replicate(NotInter 0);
925 
               end
926 
         end
927 
      interTopVal <= interTopValNext;
928 
      interTopLeftVal <= interTopLeftValNext;
929 
      $display( "Trace Prediction: interReceiveResp %h %h %h", interstate, interRespCount, data);
930 
   endrule
931 
 
932 
 
933 
   rule interProcessStep ( interStepCount>0 && currMbHor
934 
      Bit#(PicAreaSz) currMbTemp = currMb+zeroExtend(interCurrMbDiff)-1;
935 
      Bit#(2) blockHor = {interMbPartNum[0],interSubMbPartNum[0]};
936 
      Bit#(2) blockVer = {interMbPartNum[1],interSubMbPartNum[1]};
937 
      Bit#(3) partWidth = 0;
938 
      Bit#(3) partHeight = 0;
939 
      Bit#(3) numPart = 1;
940 
      Bit#(3) numSubPart = 1;
941 
      Bit#(2) subMbType = 0;
942 
      Bool noBlockC = False;
943 
      Bool calcmv = False;
944 
      Bool leftmv = False;
945 
      if(interstate==InterPskip || interstate==InterP16x16)
946 
         begin
947 
            partWidth = 4;
948 
            partHeight = 4;
949 
            numPart = 1;
950 
            calcmv = (interMbPartNum==0 && interSubMbPartNum==0);
951 
            leftmv = (blockHor>0);
952 
         end
953 
      else if(interstate==InterP16x8)
954 
         begin
955 
            partWidth = 4;
956 
            partHeight = 2;
957 
            numPart = 2;
958 
            if(interMbPartNum==2)
959 
               noBlockC = True;
960 
            calcmv = (interMbPartNum[0]==0 && interSubMbPartNum==0);
961 
            leftmv = (blockHor>0);
962 
         end
963 
      else if(interstate==InterP8x16)
964 
         begin
965 
            partWidth = 2;
966 
            partHeight = 4;
967 
            numPart = 2;
968 
            calcmv = (interMbPartNum[1]==0 && interSubMbPartNum==0);
969 
            leftmv = !(blockVer>0);
970 
         end
971 
      else if(interstate==InterP8x8 || interstate==InterP8x8ref0)
972 
         begin
973 
            numPart = 4;
974 
            subMbType = interSubMbTypeVector[interMbPartNum];
975 
            numSubPart = numSubMbPart(subMbType);
976 
            case(subMbType)
977 
               0:
978 
               begin
979 
                  partWidth = 2;
980 
                  partHeight = 2;
981 
                  if(interMbPartNum==3)
982 
                     noBlockC = True;
983 
                  calcmv = (interSubMbPartNum==0);
984 
                  leftmv = (blockHor[0]>0);
985 
               end
986 
               1:
987 
               begin
988 
                  partWidth = 2;
989 
                  partHeight = 1;
990 
                  if(interSubMbPartNum==2)
991 
                     noBlockC = True;
992 
                  calcmv = (interSubMbPartNum[0]==0);
993 
                  leftmv = True;
994 
               end
995 
               2:
996 
               begin
997 
                  partWidth = 1;
998 
                  partHeight = 2;
999 
                  calcmv = (interSubMbPartNum[1]==0);
1000 
                  leftmv = False;
1001 
               end
1002 
               3:
1003 
               begin
1004 
                  partWidth = 1;
1005 
                  partHeight = 1;
1006 
                  if(interSubMbPartNum==3)
1007 
                     noBlockC = True;
1008 
                  calcmv = True;
1009 
               end
1010 
            endcase
1011 
         end
1012 
      else
1013 
         $display( "ERROR Prediction: interProcessStep unexpected interstate");
1014 
      Bit#(4) refIndex = ((interstate==InterPskip||interstate==InterP8x8ref0) ? 0 : interRefIdxVector[interMbPartNum]);
1015 
      Vector#(3,InterBlockMv) blockABC = replicate(NotInter 0);
1016 
      if( currMbTemp-firstMb==0 && blockHor==0 )
1017 
         blockABC[0] = (NotInter 0);
1018 
      else
1019 
         blockABC[0] = interLeftVal[blockVer];
1020 
      if( currMbTemp-firstMb
1021 
         blockABC[1] = (NotInter 0);
1022 
      else
1023 
         blockABC[1] = interTopVal[blockHor];
1024 
      blockABC[2] = interTopVal[{1'b0,blockHor}+partWidth];
1025 
      if(noBlockC || blockABC[2]==(NotInter 0))
1026 
         blockABC[2] = interTopLeftVal[blockVer];
1027 
      Bit#(14) mvhorfinal = 0;
1028 
      Bit#(12) mvverfinal = 0;
1029 
      Bit#(5) interNewestMvNext = 0;
1030 
      if(calcmv)//motion vector caculation
1031 
         begin
1032 
            Vector#(3,Int#(14)) mvhorABC = replicate(0);
1033 
            Vector#(3,Int#(12)) mvverABC = replicate(0);
1034 
            Bit#(2) validCount = 0;
1035 
            Bit#(14) mvhorPred = 0;
1036 
            Bit#(12) mvverPred = 0;
1037 
            for(Integer ii=0; ii<3; ii=ii+1)
1038 
               begin
1039 
                  if(blockABC[ii] matches tagged BlockMv .xdata)
1040 
                     begin
1041 
                        mvhorABC[ii] = unpack(xdata.mvhor);
1042 
                        mvverABC[ii] = unpack(xdata.mvver);
1043 
                        if(xdata.refIdx == refIndex)
1044 
                           begin
1045 
                              validCount = validCount+1;
1046 
                              mvhorPred = xdata.mvhor;
1047 
                              mvverPred = xdata.mvver;
1048 
                           end
1049 
                     end
1050 
                  else
1051 
                     begin
1052 
                        mvhorABC[ii] = 0;
1053 
                        mvverABC[ii] = 0;
1054 
                     end
1055 
               end
1056 
            if(validCount != 1)//median
1057 
               begin
1058 
                  if(mvhorABC[0]>mvhorABC[1] && mvhorABC[0]>mvhorABC[2])
1059 
                     mvhorPred = pack((mvhorABC[1]>mvhorABC[2]) ? mvhorABC[1] : mvhorABC[2]);
1060 
                  else if(mvhorABC[0]
1061 
                     mvhorPred = pack((mvhorABC[1]
1062 
                  else
1063 
                     mvhorPred = pack(mvhorABC[0]);
1064 
                  if(mvverABC[0]>mvverABC[1] && mvverABC[0]>mvverABC[2])
1065 
                     mvverPred = pack((mvverABC[1]>mvverABC[2]) ? mvverABC[1] : mvverABC[2]);
1066 
                  else if(mvverABC[0]
1067 
                     mvverPred = pack((mvverABC[1]
1068 
                  else
1069 
                     mvverPred = pack(mvverABC[0]);
1070 
               end
1071 
            if(interstate==InterPskip)
1072 
               begin
1073 
                  for(Integer ii=0; ii<2; ii=ii+1)
1074 
                     begin
1075 
                        if(blockABC[ii] matches tagged BlockMv .xdata)
1076 
                           begin
1077 
                              if(xdata.refIdx==0 && xdata.mvhor==0 && xdata.mvver==0)
1078 
                                 begin
1079 
                                    mvhorPred = 0;
1080 
                                    mvverPred = 0;
1081 
                                 end
1082 
                           end
1083 
                        else if(blockABC[ii] matches tagged NotInter 0)
1084 
                           begin
1085 
                              mvhorPred = 0;
1086 
                              mvverPred = 0;
1087 
                           end
1088 
                     end
1089 
               end
1090 
            else if(interstate==InterP16x8 || interstate==InterP8x16)
1091 
               begin
1092 
                  InterBlockMv blockCheck;
1093 
                  if(interstate==InterP16x8)
1094 
                     begin
1095 
                        if(interMbPartNum==0)
1096 
                           blockCheck = blockABC[1];
1097 
                        else
1098 
                           blockCheck = blockABC[0];
1099 
                     end
1100 
                  else
1101 
                     begin
1102 
                        if(interMbPartNum==0)
1103 
                           blockCheck = blockABC[0];
1104 
                        else
1105 
                           blockCheck = blockABC[2];
1106 
                     end
1107 
                  if(blockCheck matches tagged BlockMv .xdata &&& xdata.refIdx==refIndex)
1108 
                     begin
1109 
                        mvhorPred = xdata.mvhor;
1110 
                        mvverPred = xdata.mvver;
1111 
                     end
1112 
               end
1113 
            mvhorfinal = mvhorPred;
1114 
            mvverfinal = mvverPred;
1115 
            if(interstate!=InterPskip)
1116 
               begin
1117 
                  mvhorfinal = truncate(tpl_1(interMvDiff.first()) + signExtend(mvhorPred));
1118 
                  mvverfinal = truncate(tpl_2(interMvDiff.first()) + signExtend(mvverPred));
1119 
                  interMvDiff.deq();
1120 
               end
1121 
            interMvFile.upd({interMbPartNum,interSubMbPartNum},tuple2(mvhorfinal,mvverfinal));
1122 
            interNewestMvNext = zeroExtend({interMbPartNum,interSubMbPartNum})+1;
1123 
            $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);
1124 
         end
1125 
      else
1126 
         begin
1127 
            if(leftmv)
1128 
               begin
1129 
                  if(blockABC[0] matches tagged BlockMv .xdata)
1130 
                     begin
1131 
                        mvhorfinal = unpack(xdata.mvhor);
1132 
                        mvverfinal = unpack(xdata.mvver);
1133 
                     end
1134 
                  else
1135 
                     $display( "ERROR Prediction: interProcessStep unexpected blockABC[0]");
1136 
               end
1137 
            else
1138 
               begin
1139 
                  if(blockABC[1] matches tagged BlockMv .xdata)
1140 
                     begin
1141 
                        mvhorfinal = unpack(xdata.mvhor);
1142 
                        mvverfinal = unpack(xdata.mvver);
1143 
                     end
1144 
                  else
1145 
                     $display( "ERROR Prediction: interProcessStep unexpected blockABC[1]");
1146 
               end
1147 
         end
1148 
      Bit#(2) tempBShor = 0;//bS calculation
1149 
      Bit#(2) tempBSver = 0;
1150 
      if(interLeftVal[blockVer] matches tagged BlockMv .xdata)
1151 
         begin
1152 
            if(xdata.nonZeroTransCoeff == 1)
1153 
               tempBShor = 2;
1154 
            else
1155 
               begin
1156 
                  if(xdata.refIdx!=refIndex || absDiffGEFour14(mvhorfinal,xdata.mvhor) || absDiffGEFour12(mvverfinal,xdata.mvver))
1157 
                     tempBShor = 1;
1158 
                  else
1159 
                     tempBShor = 0;
1160 
               end
1161 
         end
1162 
      else
1163 
         tempBShor = 3;
1164 
      if(interTopVal[blockHor] matches tagged BlockMv .xdata)
1165 
         begin
1166 
            if(xdata.nonZeroTransCoeff == 1)
1167 
               tempBSver = 2;
1168 
            else
1169 
               begin
1170 
                  if(xdata.refIdx!=refIndex || absDiffGEFour14(mvhorfinal,xdata.mvhor) || absDiffGEFour12(mvverfinal,xdata.mvver))
1171 
                     tempBSver = 1;
1172 
                  else
1173 
                     tempBSver = 0;
1174 
               end
1175 
         end
1176 
      else
1177 
         tempBSver = 3;
1178 
      interBSfifo.enq(tuple2(tempBShor,tempBSver));
1179 
      Vector#(5,InterBlockMv) interTopValNext = interTopVal;//update inter*Val
1180 
      Vector#(4,InterBlockMv) interLeftValNext = interLeftVal;
1181 
      Vector#(4,InterBlockMv) interTopLeftValNext = interTopLeftVal;
1182 
      interLeftValNext[blockVer] = (BlockMv {refIdx:refIndex,mvhor:mvhorfinal,mvver:mvverfinal,nonZeroTransCoeff:0});
1183 
      interTopValNext[blockHor] = (BlockMv {refIdx:refIndex,mvhor:mvhorfinal,mvver:mvverfinal,nonZeroTransCoeff:0});
1184 
      interTopLeftValNext[blockVer] = interTopVal[blockHor];
1185 
      interTopVal <= interTopValNext;
1186 
      interLeftVal <= interLeftValNext;
1187 
      interTopLeftVal <= interTopLeftValNext;
1188 
      if(blockVer == 3)
1189 
         interOutBlockMvfifo.enq(BlockMv {refIdx:refIndex,mvhor:mvhorfinal,mvver:mvverfinal,nonZeroTransCoeff:0});
1190 
      if(interSubMbPartNum == 3)//next step
1191 
         begin
1192 
            interSubMbPartNum <= 0;
1193 
            if(interMbPartNum == 3)
1194 
               begin
1195 
                  interMbPartNum <= 0;
1196 
                  interStepCount <= 0;
1197 
                  interNewestMvNext = 16;
1198 
               end
1199 
            else
1200 
               interMbPartNum <= interMbPartNum+1;
1201 
         end
1202 
      else
1203 
         interSubMbPartNum <= interSubMbPartNum+1;
1204 
      if(interNewestMvNext > 0)
1205 
         interNewestMv <= interNewestMvNext;
1206 
   endrule
1207 
 
1208 
 
1209 
   rule interIPProcessStep ( interIPStepCount>0 && currMbHorzeroExtend({interIPMbPartNum,interIPSubMbPartNum}) );
1210 
      Bit#(PicAreaSz) currMbHorTemp = currMbHor+zeroExtend(interCurrMbDiff)-1;
1211 
      Bit#(PicHeightSz) currMbVerTemp = currMbVer;
1212 
      if( currMbHorTemp >= zeroExtend(picWidth) )
1213 
         begin
1214 
            currMbHorTemp = currMbHorTemp-zeroExtend(picWidth);
1215 
            currMbVerTemp = currMbVerTemp+1;
1216 
         end
1217 
      Bit#(2) blockHor = {interIPMbPartNum[0],interIPSubMbPartNum[0]};
1218 
      Bit#(2) blockVer = {interIPMbPartNum[1],interIPSubMbPartNum[1]};
1219 
      Bit#(3) numPart = 1;
1220 
      Bit#(3) numSubPart = 1;
1221 
      Bit#(2) subMbType = 0;
1222 
      if(interstate==InterPskip || interstate==InterP16x16)
1223 
         numPart = 1;
1224 
      else if(interstate==InterP16x8)
1225 
         numPart = 2;
1226 
      else if(interstate==InterP8x16)
1227 
         numPart = 2;
1228 
      else if(interstate==InterP8x8 || interstate==InterP8x8ref0)
1229 
         begin
1230 
            numPart = 4;
1231 
            subMbType = interSubMbTypeVector[interIPMbPartNum];
1232 
            numSubPart = numSubMbPart(subMbType);
1233 
         end
1234 
      else
1235 
         $display( "ERROR Prediction: interIPProcessStep unexpected interstate");
1236 
      Bit#(4) refIndex = ((interstate==InterPskip||interstate==InterP8x8ref0) ? 0 : interRefIdxVector[interIPMbPartNum]);
1237 
      Bit#(PicWidthSz) currMbHorT = truncate(currMbHorTemp);
1238 
      Bit#(TAdd#(PicWidthSz,2)) horTemp = {currMbHorT,blockHor};
1239 
      Bit#(TAdd#(PicHeightSz,4)) verTemp = {currMbVerTemp,blockVer,2'b00};
1240 
      IPBlockType btTemp = IP16x16;
1241 
      if(interstate==InterPskip || interstate==InterP16x16)
1242 
         btTemp = IP16x16;
1243 
      else if(interstate==InterP16x8)
1244 
         btTemp = IP16x8;
1245 
      else if(interstate==InterP8x16)
1246 
         btTemp = IP8x16;
1247 
      else
1248 
         begin
1249 
            case(subMbType)
1250 
               0: btTemp = IP8x8;
1251 
               1: btTemp = IP8x4;
1252 
               2: btTemp = IP4x8;
1253 
               3: btTemp = IP4x4;
1254 
            endcase
1255 
         end
1256 
      Bit#(14) mvhorTemp = tpl_1(interMvFile.sub({interIPMbPartNum,interIPSubMbPartNum}));
1257 
      Bit#(12) mvverTemp = tpl_2(interMvFile.sub({interIPMbPartNum,interIPSubMbPartNum}));
1258 
      if(interIPStepCount == 1)
1259 
         begin
1260 
            if(!(interstate==InterP8x8 || interstate==InterP8x8ref0))
1261 
               begin
1262 
                  numPart = 4;
1263 
                  Bit#(2) interIPMbPartNumTemp = interIPMbPartNum;
1264 
                  if(btTemp==IP16x16)
1265 
                     interIPMbPartNumTemp = 0;
1266 
                  else if(btTemp==IP16x8 && interIPMbPartNumTemp[0]==1)
1267 
                     interIPMbPartNumTemp = interIPMbPartNumTemp-1;
1268 
                  else if(btTemp==IP8x16 && interIPMbPartNumTemp[1]==1)
1269 
                     interIPMbPartNumTemp = interIPMbPartNumTemp-2;
1270 
                  refIndex = ((interstate==InterPskip||interstate==InterP8x8ref0) ? 0 : interRefIdxVector[interIPMbPartNumTemp]);
1271 
                  btTemp = IP8x8;
1272 
                  mvhorTemp = tpl_1(interMvFile.sub({interIPMbPartNumTemp,2'b00}));
1273 
                  mvverTemp = tpl_2(interMvFile.sub({interIPMbPartNumTemp,2'b00}));
1274 
                  interpolator.request(IPLuma {refIdx:refIndex,hor:horTemp,ver:verTemp,mvhor:mvhorTemp,mvver:mvverTemp,bt:btTemp});
1275 
               end
1276 
            else
1277 
               interpolator.request(IPLuma {refIdx:refIndex,hor:horTemp,ver:verTemp,mvhor:mvhorTemp,mvver:mvverTemp,bt:btTemp});
1278 
         end
1279 
      else
1280 
         interpolator.request(IPChroma {refIdx:refIndex,uv:interIPStepCount[0],hor:horTemp,ver:truncate(verTemp>>1),mvhor:mvhorTemp,mvver:mvverTemp,bt:btTemp});
1281 
      if(interIPSubMbPartNum >= truncate(numSubPart-1))
1282 
         begin
1283 
            interIPSubMbPartNum <= 0;
1284 
            if(interIPMbPartNum >= truncate(numPart-1))
1285 
               begin
1286 
                  interIPMbPartNum <= 0;
1287 
                  interIPStepCount <= interIPStepCount+1;
1288 
               end
1289 
            else
1290 
               begin
1291 
                  if(btTemp == IP16x8)
1292 
                     interIPMbPartNum <= 2;
1293 
                  else
1294 
                     interIPMbPartNum <= interIPMbPartNum+1;
1295 
               end
1296 
         end
1297 
      else
1298 
         begin
1299 
            if(subMbType == 1)
1300 
               interIPSubMbPartNum <= 2;
1301 
            else
1302 
               interIPSubMbPartNum <= interIPSubMbPartNum+1;
1303 
         end
1304 
      $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));
1305 
   endrule
1306 
 
1307 
 
1308 
   rule interDone ( interstate!=Start && interReqCount==0 && interRespCount==0 && interStepCount==0 && interIPStepCount==0 );
1309 
      interstate <= Start;
1310 
      //$display( "Trace Prediction: interOutputTransfer %h %h", interstate, interOutputCount);
1311 
   endrule
1312 
 
1313 
 
1314 
   rule interOutputTransfer ( True );
1315 
      predictedfifo.enq(interpolator.first());
1316 
      interpolator.deq();
1317 
      //$display( "Trace Prediction: interOutputTransfer %h %h", interstate, interOutputCount);
1318 
   endrule
1319 
 
1320 
 
1321 
 
1322 
   // intra prediction rules
1323 
 
1324 
   rule intraSendReq ( intraReqCount>0 && currMbHor
1325 
      Bit#(PicWidthSz) temp2 = truncate(currMbHor);
1326 
      Bit#(TAdd#(PicWidthSz,2)) temp = 0;
1327 
      Bit#(1) noMoreReq = 0;
1328 
      if( currMb-firstMb < zeroExtend(picWidth) )
1329 
         noMoreReq = 1;
1330 
      else
1331 
         begin
1332 
            if(intraReqCount<5)
1333 
               begin
1334 
                  Bit#(2) temp3 = truncate(intraReqCount-1);
1335 
                  temp = {temp2,temp3};
1336 
               end
1337 
            else if(intraReqCount==5)
1338 
               begin
1339 
                  if((currMbHor+1)
1340 
                     temp = {(temp2+1),2'b00};
1341 
                  else if(currMbHor>0 && currMb-firstMb>zeroExtend(picWidth))
1342 
                     temp = {(temp2-1),2'b11};
1343 
                  else
1344 
                     noMoreReq = 1;
1345 
               end
1346 
            else if(intraReqCount==6)
1347 
               begin
1348 
                  if((currMbHor+1)0 && currMb-firstMb>zeroExtend(picWidth))
1349 
                     temp = {(temp2-1),2'b11};
1350 
                  else
1351 
                     noMoreReq = 1;
1352 
               end
1353 
            else
1354 
               noMoreReq = 1;
1355 
         end
1356 
      if(noMoreReq == 0)
1357 
         begin
1358 
            intraMemReqQ.enq(LoadReq temp);
1359 
            intraReqCount <= intraReqCount+1;
1360 
            //$display( "TRACE Prediction: intraSendReq addr %0d",temp);///////////////////////
1361 
         end
1362 
      else
1363 
         intraReqCount <= 0;
1364 
      $display( "Trace Prediction: intraSendReq");
1365 
   endrule
1366 
 
1367 
 
1368 
   rule intraReceiveNoResp ( intraRespCount>0 && currMbHor
1369 
      intra4x4typeTop <= replicate(15);
1370 
      intraRespCount <= 0;
1371 
      intraStepCount <= 1;
1372 
      blockNum <= 0;
1373 
      pixelNum <= 0;
1374 
      interOutBlockMvfifo.enq(NotInter 1);
1375 
      $display( "Trace Prediction: intraReceiveNoResp");
1376 
   endrule
1377 
 
1378 
 
1379 
   rule intraReceiveResp ( intraRespCount>0 && intraRespCount<7 && currMbHor
1380 
      Bit#(1) noMoreResp = 0;
1381 
      Bit#(2) temp2bit = 0;
1382 
      if(intraRespCount<5)
1383 
         begin
1384 
            temp2bit = truncate(intraRespCount-1);
1385 
            intra4x4typeTop <= update(intra4x4typeTop, temp2bit, data[67:64]);
1386 
            if(intraRespCount==4)
1387 
               begin
1388 
                  Vector#(5,Bit#(32)) intraTopValTemp = intraTopVal;
1389 
                  intraTopValTemp[3] = data[31:0];
1390 
                  intraTopValTemp[4] = {data[31:24],data[31:24],data[31:24],data[31:24]};
1391 
                  intraTopVal <= intraTopValTemp;
1392 
                  if(!((currMbHor+1)0 && currMb-firstMb>zeroExtend(picWidth)))
1393 
                     noMoreResp = 1;
1394 
               end
1395 
            else
1396 
               intraTopVal <= update(intraTopVal, intraRespCount-1, data[31:0]);
1397 
            intraTopValChroma0 <= update(intraTopValChroma0, temp2bit, data[47:32]);
1398 
            intraTopValChroma1 <= update(intraTopValChroma1, temp2bit, data[63:48]);
1399 
         end
1400 
      else if(intraRespCount==5)
1401 
         begin
1402 
            if((currMbHor+1)
1403 
               begin
1404 
                  if(!(data[67:64]==15 || (data[67:64]==14 && ppsconstrained_intra_pred_flag==1)))
1405 
                     intraTopVal <= update(intraTopVal, 4, data[31:0]);
1406 
                  if(!(currMbHor>0 && currMb-firstMb>zeroExtend(picWidth)))
1407 
                     noMoreResp = 1;
1408 
               end
1409 
            else
1410 
               begin
1411 
                  Bit#(40) temp2 = intraLeftVal[0];
1412 
                  intraLeftVal <= update(intraLeftVal, 0, {temp2[39:8],data[31:24]});
1413 
                  intraLeftValChroma0 <= update(intraLeftValChroma0, 0, data[47:40]);
1414 
                  intraLeftValChroma1 <= update(intraLeftValChroma1, 0, data[63:56]);
1415 
                  noMoreResp = 1;
1416 
               end
1417 
         end
1418 
      else
1419 
         begin
1420 
            Bit#(40) temp2 = intraLeftVal[0];
1421 
            intraLeftVal <= update(intraLeftVal, 0, {temp2[39:8],data[31:24]});
1422 
            intraLeftValChroma0 <= update(intraLeftValChroma0, 0, data[47:40]);
1423 
            intraLeftValChroma1 <= update(intraLeftValChroma1, 0, data[63:56]);
1424 
            noMoreResp = 1;
1425 
         end
1426 
      intraMemRespQ.deq();
1427 
      //$display( "TRACE Prediction: intraReceiveResp data %h",data);///////////////////////
1428 
      if(noMoreResp == 0)
1429 
         intraRespCount <= intraRespCount+1;
1430 
      else
1431 
         begin
1432 
            intraRespCount <= 0;
1433 
            intraStepCount <= 1;
1434 
            blockNum <= 0;
1435 
            pixelNum <= 0;
1436 
            interOutBlockMvfifo.enq(NotInter 1);
1437 
         end
1438 
      $display( "Trace Prediction: intraReceiveResp");
1439 
   endrule
1440 
 
1441 
 
1442 
   rule intraPredTypeStep ( intraStepCount==1 && !nextoutputfifo.notEmpty());
1443 
      Bit#(2) blockHor = {blockNum[2],blockNum[0]};
1444 
      Bit#(2) blockVer = {blockNum[3],blockNum[1]};
1445 
      Bit#(4) topType = select(intra4x4typeTop, blockHor);
1446 
      Bit#(4) leftType;
1447 
      if(currMbHor!=0 || blockNum!=0)
1448 
         leftType = select(intra4x4typeLeft, blockVer);
1449 
      else
1450 
         begin
1451 
            leftType = 15;
1452 
            intra4x4typeLeft <= replicate(15);
1453 
         end
1454 
      if(intrastate!=Intra4x4)
1455 
         begin
1456 
            intraStepCount <= intraStepCount+1;
1457 
            nextoutputfifo.enq(NonSkipMB);
1458 
         end
1459 
      else
1460 
         begin
1461 
            Bit#(1) topAvailable;
1462 
            Bit#(1) leftAvailable;
1463 
            if(topType==15 || (topType==14 && ppsconstrained_intra_pred_flag==1))
1464 
               topAvailable = 0;
1465 
            else
1466 
               topAvailable = 1;
1467 
            if(leftType==15 || (leftType==14 && ppsconstrained_intra_pred_flag==1))
1468 
               leftAvailable = 0;
1469 
            else
1470 
               leftAvailable = 1;
1471 
            Bit#(4) predType = 0;
1472 
            Bit#(4) remType = rem_intra4x4_pred_mode.first();
1473 
            Bit#(4) curType = 0;
1474 
            rem_intra4x4_pred_mode.deq();
1475 
            if(topAvailable==0 || leftAvailable==0)
1476 
               predType = 2;
1477 
            else
1478 
               begin
1479 
                  Bit#(4) topType2 = topType;
1480 
                  Bit#(4) leftType2 = leftType;
1481 
                  if(topType>8)
1482 
                     topType2 = 2;
1483 
                  if(leftType>8)
1484 
                     leftType2 = 2;
1485 
                  if(topType2 > leftType2)
1486 
                     predType = leftType2;
1487 
                  else
1488 
                     predType = topType2;
1489 
               end
1490 
            if(remType[3] == 1)
1491 
               curType = predType;
1492 
            else if(remType < predType)
1493 
               curType = remType;
1494 
            else
1495 
               curType = remType+1;
1496 
            cur_intra4x4_pred_mode <= curType;
1497 
            intraStepCount <= intraStepCount+1;
1498 
            if(blockNum == 15)
1499 
               nextoutputfifo.enq(Intra4x4PlusChroma);
1500 
            else
1501 
               nextoutputfifo.enq(Intra4x4);
1502 
            $display( "TRACE Prediction: intraPredTypeStep currMbHor currMbVer blockNum topType leftType predType remType curType %0d %0d %0d %0d %0d %0d %0d %0d",currMbHor,currMbVer,blockNum,topType,leftType,predType,remType,curType);//////////////////
1503 
         end
1504 
      //$display( "Trace Prediction: intraPredTypeStep");
1505 
   endrule
1506 
 
1507 
 
1508 
   rule intraProcessStep ( intraStepCount>1 );
1509 
      $display( "TRACE Prediction: intraProcessStep %0d %0d", blockNum, pixelNum);////////////////////
1510 
      //$display( "TRACE Prediction: intraProcessStep intraTopVal %h %h %h %h %h",intraTopVal[4],intraTopVal[3],intraTopVal[2],intraTopVal[1],intraTopVal[0]);/////////////////
1511 
      Bit#(1) outFlag  = 0;
1512 
      Bit#(4) nextIntraStepCount = intraStepCount+1;
1513 
      Bit#(2) blockHor = {blockNum[2],blockNum[0]};
1514 
      Bit#(2) blockVer = {blockNum[3],blockNum[1]};
1515 
      Bit#(2) pixelVer = {pixelNum[3],pixelNum[2]};
1516 
      Vector#(4,Bit#(8)) predVector = replicate(0);
1517 
 
1518 
      Bit#(4) topType = select(intra4x4typeTop, blockHor);
1519 
      Bit#(4) leftType = select(intra4x4typeLeft, blockVer);
1520 
      Bit#(1) topAvailable;
1521 
      Bit#(1) leftAvailable;
1522 
      if(topType==15 || (topType==14 && ppsconstrained_intra_pred_flag==1))
1523 
         topAvailable = 0;
1524 
      else
1525 
         topAvailable = 1;
1526 
      if(leftType==15 || (leftType==14 && ppsconstrained_intra_pred_flag==1))
1527 
         leftAvailable = 0;
1528 
      else
1529 
         leftAvailable = 1;
1530 
      if(blockNum==0 && pixelNum==0 && intraChromaFlag==0)
1531 
         begin
1532 
            intraChromaTopAvailable <= topAvailable;
1533 
            intraChromaLeftAvailable <= leftAvailable;
1534 
         end
1535 
      if(intrastate==Intra4x4 && intraChromaFlag==0)
1536 
         begin
1537 
            if(intraStepCount==2)
1538 
               begin
1539 
                  outFlag = 1;
1540 
                  Bit#(40) leftValSet = select(intraLeftVal,blockVer);
1541 
                  Bit#(32) topMidValSet = select(intraTopVal,zeroExtend(blockHor));
1542 
                  Bit#(32) topRightValSet = select(intraTopVal,{1'b0,blockHor}+1);
1543 
                  Bit#(72) topValSet;
1544 
                  if((blockNum[3:2]==3 && blockNum[0]==1) || blockNum[1:0]==3)
1545 
                     topValSet = {topMidValSet[31:24],topMidValSet[31:24],topMidValSet[31:24],topMidValSet[31:24],topMidValSet,leftValSet[7:0]};
1546 
                  else
1547 
                     topValSet = {topRightValSet,topMidValSet,leftValSet[7:0]};
1548 
                  $display( "TRACE Prediction: intraProcessStep intra4x4 %0d %0d %h %h", cur_intra4x4_pred_mode, blockNum, leftValSet, topValSet);////////////////////
1549 
                  Bit#(4) topSelect1 = 0;
1550 
                  Bit#(4) topSelect2 = 0;
1551 
                  Bit#(4) topSelect3 = 0;
1552 
                  Bit#(3) leftSelect1 = 0;
1553 
                  Bit#(3) leftSelect2 = 0;
1554 
                  Bit#(3) leftSelect3 = 0;
1555 
                  Bit#(10) tempVal1 = 0;
1556 
                  Bit#(10) tempVal2 = 0;
1557 
                  Bit#(10) tempVal3 = 0;
1558 
                  case(cur_intra4x4_pred_mode)
1559 
                     0://vertical
1560 
                     begin
1561 
                        for(Integer pixelHor=0; pixelHor<4; pixelHor=pixelHor+1)
1562 
                           begin
1563 
                              topSelect1 = fromInteger(pixelHor);
1564 
                              Bit#(8) topVal = intra4x4SelectTop(topValSet,topSelect1);
1565 
                              predVector[pixelHor] = topVal;
1566 
                           end
1567 
                     end
1568 
                     1://horizontal
1569 
                     begin
1570 
                        leftSelect1 = zeroExtend(pixelVer);
1571 
                        Bit#(8) leftVal = intra4x4SelectLeft(leftValSet,leftSelect1);
1572 
                        for(Integer pixelHor=0; pixelHor<4; pixelHor=pixelHor+1)
1573 
                           predVector[pixelHor] = leftVal;
1574 
                     end
1575 
                     2://dc
1576 
                     begin
1577 
                        for(Integer pixelHor=0; pixelHor<4; pixelHor=pixelHor+1)
1578 
                           begin
1579 
                              Bit#(10) tempTopSum = zeroExtend(topValSet[15:8])+zeroExtend(topValSet[23:16])+zeroExtend(topValSet[31:24])+zeroExtend(topValSet[39:32]) + 2;
1580 
                              Bit#(10) tempLeftSum = zeroExtend(leftValSet[15:8])+zeroExtend(leftValSet[23:16])+zeroExtend(leftValSet[31:24])+zeroExtend(leftValSet[39:32]) + 2;
1581 
                              Bit#(11) tempTotalSum = zeroExtend(tempTopSum)+zeroExtend(tempLeftSum);
1582 
                              Bit#(8) topSum = tempTopSum[9:2];
1583 
                              Bit#(8) leftSum = tempLeftSum[9:2];
1584 
                              Bit#(8) totalSum = tempTotalSum[10:3];
1585 
                              if(topAvailable==1 && leftAvailable==1)
1586 
                                 predVector[pixelHor] = totalSum;
1587 
                              else if(topAvailable==1)
1588 
                                 predVector[pixelHor] = topSum;
1589 
                              else if(leftAvailable==1)
1590 
                                 predVector[pixelHor] = leftSum;
1591 
                              else
1592 
                                 predVector[pixelHor] = 8'b10000000;
1593 
                           end
1594 
                     end
1595 
                     3://diagonal down left
1596 
                     begin
1597 
                        for(Integer pixelHor=0; pixelHor<4; pixelHor=pixelHor+1)
1598 
                           begin
1599 
                              Bit#(4) selectNum = fromInteger(pixelHor)+zeroExtend(pixelVer);
1600 
                              if(pixelHor==3 && pixelVer==3)
1601 
                                 begin
1602 
                                    topSelect1 = 6;
1603 
                                    topSelect2 = 7;
1604 
                                    topSelect3 = 7;
1605 
                                 end
1606 
                              else
1607 
                                 begin
1608 
                                    topSelect1 = selectNum;
1609 
                                    topSelect2 = selectNum+1;
1610 
                                    topSelect3 = selectNum+2;
1611 
                                 end
1612 
                              tempVal1 = zeroExtend(intra4x4SelectTop(topValSet,topSelect1));
1613 
                              tempVal2 = zeroExtend(intra4x4SelectTop(topValSet,topSelect2));
1614 
                              tempVal3 = zeroExtend(intra4x4SelectTop(topValSet,topSelect3));
1615 
                              Bit#(10) predVal = tempVal1 + (tempVal2<<1) + tempVal3 + 2;
1616 
                              predVector[pixelHor] = predVal[9:2];
1617 
                           end
1618 
                     end
1619 
                     4://diagonal down right
1620 
                     begin
1621 
                        for(Integer pixelHor=0; pixelHor<4; pixelHor=pixelHor+1)
1622 
                           begin
1623 
                              if(fromInteger(pixelHor) > pixelVer)
1624 
                                 begin
1625 
                                    topSelect3 = fromInteger(pixelHor)-zeroExtend(pixelVer);
1626 
                                    topSelect2 = topSelect3-1;
1627 
                                    topSelect1 = topSelect3-2;
1628 
                                    tempVal1 = zeroExtend(intra4x4SelectTop(topValSet,topSelect1));
1629 
                                    tempVal2 = zeroExtend(intra4x4SelectTop(topValSet,topSelect2));
1630 
                                    tempVal3 = zeroExtend(intra4x4SelectTop(topValSet,topSelect3));
1631 
                                 end
1632 
                              else if(fromInteger(pixelHor) < pixelVer)
1633 
                                 begin
1634 
                                    leftSelect3 = zeroExtend(pixelVer)-fromInteger(pixelHor);
1635 
                                    leftSelect2 = leftSelect3-1;
1636 
                                    leftSelect1 = leftSelect3-2;
1637 
                                    tempVal1 = zeroExtend(intra4x4SelectLeft(leftValSet,leftSelect1));
1638 
                                    tempVal2 = zeroExtend(intra4x4SelectLeft(leftValSet,leftSelect2));
1639 
                                    tempVal3 = zeroExtend(intra4x4SelectLeft(leftValSet,leftSelect3));
1640 
                                 end
1641 
                              else
1642 
                                 begin
1643 
                                    leftSelect1 = 0;
1644 
                                    leftSelect2 = -1;
1645 
                                    topSelect1 = 0;
1646 
                                    tempVal1 = zeroExtend(intra4x4SelectLeft(leftValSet,leftSelect1));
1647 
                                    tempVal2 = zeroExtend(intra4x4SelectLeft(leftValSet,leftSelect2));
1648 
                                    tempVal3 = zeroExtend(intra4x4SelectTop(topValSet,topSelect1));
1649 
                                 end
1650 
                              Bit#(10) predVal = tempVal1 + (tempVal2<<1) + tempVal3 + 2;
1651 
                              predVector[pixelHor] = predVal[9:2];
1652 
                           end
1653 
                     end
1654 
                     5://vertical right
1655 
                     begin
1656 
                        for(Integer pixelHor=0; pixelHor<4; pixelHor=pixelHor+1)
1657 
                           begin
1658 
                              Bit#(4) tempPixelHor = fromInteger(pixelHor);
1659 
                              Bit#(4) zVR = (tempPixelHor<<1)-zeroExtend(pixelVer);
1660 
                              if(zVR<=6 && zVR>=0)
1661 
                                 begin
1662 
                                    topSelect3 = fromInteger(pixelHor)-zeroExtend(pixelVer>>1);
1663 
                                    topSelect2 = topSelect3-1;
1664 
                                    if(zVR==1 || zVR==3 || zVR==5)
1665 
                                       topSelect1 = topSelect3-2;
1666 
                                    else
1667 
                                       topSelect1 = topSelect3;
1668 
                                    tempVal1 = zeroExtend(intra4x4SelectTop(topValSet,topSelect1));
1669 
                                    tempVal2 = zeroExtend(intra4x4SelectTop(topValSet,topSelect2));
1670 
                                    tempVal3 = zeroExtend(intra4x4SelectTop(topValSet,topSelect3));
1671 
                                 end
1672 
                              else if(zVR==-1)
1673 
                                 begin
1674 
                                    leftSelect1 = 0;
1675 
                                    leftSelect2 = -1;
1676 
                                    topSelect1 = 0;
1677 
                                    tempVal1 = zeroExtend(intra4x4SelectLeft(leftValSet,leftSelect1));
1678 
                                    tempVal2 = zeroExtend(intra4x4SelectLeft(leftValSet,leftSelect2));
1679 
                                    tempVal3 = zeroExtend(intra4x4SelectTop(topValSet,topSelect1));
1680 
                                 end
1681 
                              else
1682 
                                 begin
1683 
                                    leftSelect1 = zeroExtend(pixelVer)-1;
1684 
                                    leftSelect2 = leftSelect1-1;
1685 
                                    leftSelect3 = leftSelect1-2;
1686 
                                    tempVal1 = zeroExtend(intra4x4SelectLeft(leftValSet,leftSelect1));
1687 
                                    tempVal2 = zeroExtend(intra4x4SelectLeft(leftValSet,leftSelect2));
1688 
                                    tempVal3 = zeroExtend(intra4x4SelectLeft(leftValSet,leftSelect3));
1689 
                                 end
1690 
                              Bit#(10) predVal = tempVal1 + (tempVal2<<1) + tempVal3 + 2;
1691 
                              predVector[pixelHor] = predVal[9:2];
1692 
                           end
1693 
                     end
1694 
                     6://horizontal down
1695 
                     begin
1696 
                        for(Integer pixelHor=0; pixelHor<4; pixelHor=pixelHor+1)
1697 
                           begin
1698 
                              Bit#(4) tempPixelVer = zeroExtend(pixelVer);
1699 
                              Bit#(4) zHD = (tempPixelVer<<1)-fromInteger(pixelHor);
1700 
                              if(zHD<=6 && zHD>=0)
1701 
                                 begin
1702 
                                    leftSelect3 = zeroExtend(pixelVer)-fromInteger(pixelHor/2);
1703 
                                    leftSelect2 = leftSelect3-1;
1704 
                                    if(zHD==1 || zHD==3 || zHD==5)
1705 
                                       leftSelect1 = leftSelect3-2;
1706 
                                    else
1707 
                                       leftSelect1 = leftSelect3;
1708 
                                    tempVal1 = zeroExtend(intra4x4SelectLeft(leftValSet,leftSelect1));
1709 
                                    tempVal2 = zeroExtend(intra4x4SelectLeft(leftValSet,leftSelect2));
1710 
                                    tempVal3 = zeroExtend(intra4x4SelectLeft(leftValSet,leftSelect3));
1711 
                                 end
1712 
                              else if(zHD==-1)
1713 
                                 begin
1714 
                                    leftSelect1 = 0;
1715 
                                    leftSelect2 = -1;
1716 
                                    topSelect1 = 0;
1717 
                                    tempVal1 = zeroExtend(intra4x4SelectLeft(leftValSet,leftSelect1));
1718 
                                    tempVal2 = zeroExtend(intra4x4SelectLeft(leftValSet,leftSelect2));
1719 
                                    tempVal3 = zeroExtend(intra4x4SelectTop(topValSet,topSelect1));
1720 
                                 end
1721 
                              else
1722 
                                 begin
1723 
                                    topSelect1 = fromInteger(pixelHor)-1;
1724 
                                    topSelect2 = topSelect1-1;
1725 
                                    topSelect3 = topSelect1-2;
1726 
                                    tempVal1 = zeroExtend(intra4x4SelectTop(topValSet,topSelect1));
1727 
                                    tempVal2 = zeroExtend(intra4x4SelectTop(topValSet,topSelect2));
1728 
                                    tempVal3 = zeroExtend(intra4x4SelectTop(topValSet,topSelect3));
1729 
                                 end
1730 
                              Bit#(10) predVal = tempVal1 + (tempVal2<<1) + tempVal3 + 2;
1731 
                              predVector[pixelHor] = predVal[9:2];
1732 
                           end
1733 
                     end
1734 
                     7://vertical left
1735 
                     begin
1736 
                        for(Integer pixelHor=0; pixelHor<4; pixelHor=pixelHor+1)
1737 
                           begin
1738 
                              topSelect1 = fromInteger(pixelHor)+zeroExtend(pixelVer>>1);
1739 
                              topSelect2 = topSelect1+1;
1740 
                              if(pixelVer==1 || pixelVer==3)
1741 
                                 topSelect3 = topSelect1+2;
1742 
                              else
1743 
                                 topSelect3 = topSelect1;
1744 
                              tempVal1 = zeroExtend(intra4x4SelectTop(topValSet,topSelect1));
1745 
                              tempVal2 = zeroExtend(intra4x4SelectTop(topValSet,topSelect2));
1746 
                              tempVal3 = zeroExtend(intra4x4SelectTop(topValSet,topSelect3));
1747 
                              Bit#(10) predVal = tempVal1 + (tempVal2<<1) + tempVal3 + 2;
1748 
                              predVector[pixelHor] = predVal[9:2];
1749 
                           end
1750 
                     end
1751 
                     8://horizontal up
1752 
                     begin
1753 
                        for(Integer pixelHor=0; pixelHor<4; pixelHor=pixelHor+1)
1754 
                           begin
1755 
                              Bit#(4) tempPixelVer = zeroExtend(pixelVer);
1756 
                              Bit#(4) zHU = (tempPixelVer<<1)+fromInteger(pixelHor);
1757 
                              if(zHU<=4)
1758 
                                 begin
1759 
                                    leftSelect1 = zeroExtend(pixelVer)+fromInteger(pixelHor/2);
1760 
                                    leftSelect2 = leftSelect1+1;
1761 
                                    if(zHU==1 || zHU==3)
1762 
                                       leftSelect3 = leftSelect1+2;
1763 
                                    else
1764 
                                       leftSelect3 = leftSelect1;
1765 
                                 end
1766 
                              else
1767 
                                 begin
1768 
                                    if(zHU==5)
1769 
                                       leftSelect1 = 2;
1770 
                                    else
1771 
                                       leftSelect1 = 3;
1772 
                                    leftSelect2 = 3;
1773 
                                    leftSelect3 = 3;
1774 
                                 end
1775 
                              tempVal1 = zeroExtend(intra4x4SelectLeft(leftValSet,leftSelect1));
1776 
                              tempVal2 = zeroExtend(intra4x4SelectLeft(leftValSet,leftSelect2));
1777 
                              tempVal3 = zeroExtend(intra4x4SelectLeft(leftValSet,leftSelect3));
1778 
                              Bit#(10) predVal = tempVal1 + (tempVal2<<1) + tempVal3 + 2;
1779 
                              predVector[pixelHor] = predVal[9:2];
1780 
                           end
1781 
                     end
1782 
                     default: $display( "ERROR Prediction: intraProcessStep intra4x4 unknown cur_intra4x4_pred_mode");
1783 
                  endcase
1784 
               end
1785 
            else
1786 
               $display( "ERROR Prediction: intraProcessStep intra4x4 unknown intraStepCount");
1787 
         end
1788 
      else if(intrastate==Intra16x16  && intraChromaFlag==0)
1789 
         begin
1790 
            //$display( "TRACE Prediction: intraProcessStep intra16x16 %0d %0d %0d %h", intra16x16_pred_mode, currMb, blockNum, select(intraTopVal,blockHor));/////////////////
1791 
            case(intra16x16_pred_mode)
1792 
               0://vertical
1793 
               begin
1794 
                  for(Integer pixelHor=0; pixelHor<4; pixelHor=pixelHor+1)
1795 
                     begin
1796 
                        Bit#(32) topValSet = select(intraTopVal,blockHor);
1797 
                        Bit#(8) topVal = select32to8(topValSet,fromInteger(pixelHor));
1798 
                        predVector[pixelHor] = topVal;
1799 
                     end
1800 
                  outFlag = 1;
1801 
               end
1802 
               1://horizontal
1803 
               begin
1804 
                  Bit#(40) leftValSet = select(intraLeftVal,blockVer);
1805 
                  Bit#(8) leftVal = intra4x4SelectLeft(leftValSet,zeroExtend(pixelVer));
1806 
                  for(Integer pixelHor=0; pixelHor<4; pixelHor=pixelHor+1)
1807 
                     predVector[pixelHor] = leftVal;
1808 
                  outFlag = 1;
1809 
               end
1810 
               2://dc
1811 
               begin
1812 
                  case(intraStepCount)
1813 
                     2:
1814 
                     begin
1815 
                        if(topAvailable == 1)
1816 
                           begin
1817 
                              Bit#(32) topValSet = select(intraTopVal,0);
1818 
                              intraSumA <= zeroExtend(topValSet[7:0])+zeroExtend(topValSet[15:8])+zeroExtend(topValSet[23:16])+zeroExtend(topValSet[31:24]);
1819 
                           end
1820 
                        else
1821 
                           begin
1822 
                              intraSumA <= 0;
1823 
                              nextIntraStepCount = 6;
1824 
                           end
1825 
                     end
1826 
                     3:
1827 
                     begin
1828 
                        Bit#(32) topValSet = select(intraTopVal,1);
1829 
                        intraSumA <= intraSumA+zeroExtend(topValSet[7:0])+zeroExtend(topValSet[15:8])+zeroExtend(topValSet[23:16])+zeroExtend(topValSet[31:24]);
1830 
                     end
1831 
                     4:
1832 
                     begin
1833 
                        Bit#(32) topValSet = select(intraTopVal,2);
1834 
                        intraSumA <= intraSumA+zeroExtend(topValSet[7:0])+zeroExtend(topValSet[15:8])+zeroExtend(topValSet[23:16])+zeroExtend(topValSet[31:24]);
1835 
                     end
1836 
                     5:
1837 
                     begin
1838 
                        Bit#(32) topValSet = select(intraTopVal,3);
1839 
                        intraSumA <= intraSumA+zeroExtend(topValSet[7:0])+zeroExtend(topValSet[15:8])+zeroExtend(topValSet[23:16])+zeroExtend(topValSet[31:24])+8;
1840 
                     end
1841 
                     6:
1842 
                     begin
1843 
                        if(leftAvailable == 1)
1844 
                           begin
1845 
                              Bit#(40) leftValSet = select(intraLeftVal,0);
1846 
                              intraSumA <= intraSumA+zeroExtend(leftValSet[15:8])+zeroExtend(leftValSet[23:16])+zeroExtend(leftValSet[31:24])+zeroExtend(leftValSet[39:32]);
1847 
                           end
1848 
                        else
1849 
                           nextIntraStepCount = 10;
1850 
                     end
1851 
                     7:
1852 
                     begin
1853 
                        Bit#(40) leftValSet = select(intraLeftVal,1);
1854 
                        intraSumA <= intraSumA+zeroExtend(leftValSet[15:8])+zeroExtend(leftValSet[23:16])+zeroExtend(leftValSet[31:24])+zeroExtend(leftValSet[39:32]);
1855 
                     end
1856 
                     8:
1857 
                     begin
1858 
                        Bit#(40) leftValSet = select(intraLeftVal,2);
1859 
                        intraSumA <= intraSumA+zeroExtend(leftValSet[15:8])+zeroExtend(leftValSet[23:16])+zeroExtend(leftValSet[31:24])+zeroExtend(leftValSet[39:32]);
1860 
                     end
1861 
                     9:
1862 
                     begin
1863 
                        Bit#(40) leftValSet = select(intraLeftVal,3);
1864 
                        intraSumA <= intraSumA+zeroExtend(leftValSet[15:8])+zeroExtend(leftValSet[23:16])+zeroExtend(leftValSet[31:24])+zeroExtend(leftValSet[39:32])+8;
1865 
                     end
1866 
                     10:
1867 
                     begin
1868 
                        if(leftAvailable == 1 && topAvailable == 1)
1869 
                           intraSumA <= intraSumA >> 5;
1870 
                        else if(leftAvailable == 1 || topAvailable == 1)
1871 
                           intraSumA <= intraSumA >> 4;
1872 
                        else
1873 
                           intraSumA <= 128;
1874 
                     end
1875 
                     11:
1876 
                     begin
1877 
                        for(Integer pixelHor=0; pixelHor<4; pixelHor=pixelHor+1)
1878 
                           predVector[pixelHor] = intraSumA[7:0];
1879 
                        outFlag = 1;
1880 
                     end
1881 
                     default: $display( "ERROR Prediction: intraProcessStep intra16x16 DC unknown intraStepCount");
1882 
                  endcase
1883 
               end
1884 
               3://plane
1885 
               begin
1886 
                  if(intraStepCount == 2)
1887 
                     begin
1888 
                        Bit#(32) topValSet = select(intraTopVal,3);
1889 
                        Bit#(8) topVal = select32to8(topValSet,3);
1890 
                        Bit#(40) leftValSet = select(intraLeftVal,3);
1891 
                        Bit#(8) leftVal = intra4x4SelectLeft(leftValSet,3);
1892 
                        Bit#(13) tempVal = zeroExtend(topVal) + zeroExtend(leftVal);
1893 
                        intraSumA <= tempVal << 4;
1894 
                        intraSumB <= 0;
1895 
                        intraSumC <= 0;
1896 
                     end
1897 
                  else if(intraStepCount < 11)
1898 
                     begin
1899 
                        Bit#(4) xyPlusOne = intraStepCount-2;
1900 
                        Bit#(4) xyPlusEight = intraStepCount+5;
1901 
                        Bit#(4) sixMinusXY = 9-intraStepCount;
1902 
                        Bit#(32) topValSet1 = select(intraTopVal,xyPlusEight[3:2]);
1903 
                        Bit#(8) topVal1 = select32to8(topValSet1,xyPlusEight[1:0]);
1904 
                        Bit#(40) leftValSet1 = select(intraLeftVal,xyPlusEight[3:2]);
1905 
                        Bit#(8) leftVal1 = intra4x4SelectLeft(leftValSet1,zeroExtend(xyPlusEight[1:0]));
1906 
                        Bit#(32) topValSet2=0;
1907 
                        Bit#(8) topVal2;
1908 
                        Bit#(40) leftValSet2;
1909 
                        Bit#(8) leftVal2;
1910 
                        if(intraStepCount==10)
1911 
                           begin
1912 
                              leftValSet2 = select(intraLeftVal,0);
1913 
                              leftVal2 = intra4x4SelectLeft(leftValSet2,-1);
1914 
                              topVal2 = leftVal2;
1915 
                           end
1916 
                        else
1917 
                           begin
1918 
                              topValSet2 = select(intraTopVal,sixMinusXY[3:2]);
1919 
                              topVal2 = select32to8(topValSet2,sixMinusXY[1:0]);
1920 
                              leftValSet2 = select(intraLeftVal,sixMinusXY[3:2]);
1921 
                              leftVal2 = intra4x4SelectLeft(leftValSet2,zeroExtend(sixMinusXY[1:0]));
1922 
                           end
1923 
                        Bit#(15) diffH = zeroExtend(topVal1) - zeroExtend(topVal2);
1924 
                        Bit#(15) diffV = zeroExtend(leftVal1) - zeroExtend(leftVal2);
1925 
                        intraSumB <= intraSumB + (zeroExtend(xyPlusOne) * diffH);
1926 
                        intraSumC <= intraSumC + (zeroExtend(xyPlusOne) * diffV);
1927 
                     end
1928 
                  else if(intraStepCount == 11)
1929 
                     begin
1930 
                        Bit#(18) tempSumB = (5*signExtend(intraSumB)) + 32;
1931 
                        Bit#(18) tempSumC = (5*signExtend(intraSumC)) + 32;
1932 
                        intraSumB <= signExtend(tempSumB[17:6]);
1933 
                        intraSumC <= signExtend(tempSumC[17:6]);
1934 
                     end
1935 
                  else if(intraStepCount == 12)
1936 
                     begin
1937 
                        for(Integer pixelHor=0; pixelHor<4; pixelHor=pixelHor+1)
1938 
                           begin
1939 
                              Bit#(5)  positionHor = {1'b0,blockHor,fromInteger(pixelHor)};
1940 
                              Bit#(5)  positionVer = {1'b0,blockVer,pixelVer};
1941 
                              Bit#(16) tempProductB = signExtend(intraSumB) * signExtend(positionHor-7);
1942 
                              Bit#(16) tempProductC = signExtend(intraSumC) * signExtend(positionVer-7);
1943 
                              Bit#(16) tempTotal = tempProductB + tempProductC + zeroExtend(intraSumA) + 16;
1944 
                              if(tempTotal[15]==1)
1945 
                                 predVector[pixelHor] = 0;
1946 
                              else if(tempTotal[14:5] > 255)
1947 
                                 predVector[pixelHor] = 255;
1948 
                              else
1949 
                                 predVector[pixelHor] = tempTotal[12:5];
1950 
                           end
1951 
                        outFlag = 1;
1952 
                     end
1953 
                  else
1954 
                     $display( "ERROR Prediction: intraProcessStep intra16x16 plane unknown intraStepCount");
1955 
               end
1956 
            endcase
1957 
         end
1958 
      else if(intraChromaFlag==1)
1959 
         begin
1960 
            //$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]);///////////////////
1961 
            Vector#(9,Bit#(8)) tempLeftVec;
1962 
            Vector#(4,Bit#(16)) tempTopVec;
1963 
            if(blockNum[2] == 0)
1964 
               begin
1965 
                  tempLeftVec = intraLeftValChroma0;
1966 
                  tempTopVec = intraTopValChroma0;
1967 
               end
1968 
            else
1969 
               begin
1970 
                  tempLeftVec = intraLeftValChroma1;
1971 
                  tempTopVec = intraTopValChroma1;
1972 
               end
1973 
            case(intra_chroma_pred_mode.first())
1974 
               0://dc
1975 
               begin
1976 
                  if(intraStepCount == 2)
1977 
                     begin
1978 
                        Bit#(1) useTop=0;
1979 
                        Bit#(1) useLeft=0;
1980 
                        if(blockNum[1:0] == 0 || blockNum[1:0] == 3)
1981 
                           begin
1982 
                              useTop = intraChromaTopAvailable;
1983 
                              useLeft = intraChromaLeftAvailable;
1984 
                           end
1985 
                        else if(blockNum[1:0] == 1)
1986 
                           begin
1987 
                              if(intraChromaTopAvailable == 1)
1988 
                                 useTop = 1;
1989 
                              else if(intraChromaLeftAvailable == 1)
1990 
                                 useLeft = 1;
1991 
                           end
1992 
                              else if(blockNum[1:0] == 2)
1993 
                                 begin
1994 
                                    if(intraChromaLeftAvailable == 1)
1995 
                                       useLeft = 1;
1996 
                                    else if(intraChromaTopAvailable == 1)
1997 
                                       useTop = 1;
1998 
                                 end
1999 
                        else
2000 
                           $display( "ERROR Prediction: intraProcessStep intraChroma dc unknown blockNum");
2001 
                        Bit#(10) topSum;
2002 
                        Bit#(10) leftSum;
2003 
                        Bit#(11) totalSum;
2004 
                        if(blockHor[0] == 0)
2005 
                           topSum = zeroExtend(tempTopVec[0][15:8])+zeroExtend(tempTopVec[0][7:0])+zeroExtend(tempTopVec[1][15:8])+zeroExtend(tempTopVec[1][7:0])+2;
2006 
                        else
2007 
                           topSum = zeroExtend(tempTopVec[2][15:8])+zeroExtend(tempTopVec[2][7:0])+zeroExtend(tempTopVec[3][15:8])+zeroExtend(tempTopVec[3][7:0])+2;
2008 
                        if(blockVer[0] == 0)
2009 
                           leftSum = zeroExtend(tempLeftVec[1])+zeroExtend(tempLeftVec[2])+zeroExtend(tempLeftVec[3])+zeroExtend(tempLeftVec[4])+2;
2010 
                        else
2011 
                           leftSum = zeroExtend(tempLeftVec[5])+zeroExtend(tempLeftVec[6])+zeroExtend(tempLeftVec[7])+zeroExtend(tempLeftVec[8])+2;
2012 
                        totalSum = zeroExtend(topSum) + zeroExtend(leftSum);
2013 
                        if(useTop==1 && useLeft==1)
2014 
                           intraSumA <= zeroExtend(totalSum[10:3]);
2015 
                        else if(useTop==1)
2016 
                           intraSumA <= zeroExtend(topSum[9:2]);
2017 
                        else if(useLeft==1)
2018 
                           intraSumA <= zeroExtend(leftSum[9:2]);
2019 
                        else
2020 
                           intraSumA <= zeroExtend(8'b10000000);
2021 
                     end
2022 
                  else if(intraStepCount == 3)
2023 
                     begin
2024 
                        for(Integer pixelHor=0; pixelHor<4; pixelHor=pixelHor+1)
2025 
                           predVector[pixelHor] = intraSumA[7:0];
2026 
                        outFlag = 1;
2027 
                     end
2028 
                  else
2029 
                     $display( "ERROR Prediction: intraProcessStep intraChroma dc unknown intraStepCount");
2030 
               end
2031 
               1://horizontal
2032 
               begin
2033 
                  for(Integer pixelHor=0; pixelHor<4; pixelHor=pixelHor+1)
2034 
                     begin
2035 
                        Bit#(4) tempLeftIdx = {1'b0,blockVer[0],pixelVer} + 1;
2036 
                        predVector[pixelHor] = select(tempLeftVec,tempLeftIdx);
2037 
                     end
2038 
                  outFlag = 1;
2039 
               end
2040 
               2://vertical
2041 
               begin
2042 
                  for(Integer pixelHor=0; pixelHor<4; pixelHor=pixelHor+1)
2043 
                     begin
2044 
                        Bit#(2) pixelHorTemp = fromInteger(pixelHor);
2045 
                        Bit#(16) tempTopVal = select(tempTopVec,{blockHor[0],pixelHorTemp[1]});
2046 
                        if(pixelHorTemp[0] == 0)
2047 
                           predVector[pixelHor] = tempTopVal[7:0];
2048 
                        else
2049 
                           predVector[pixelHor] = tempTopVal[15:8];
2050 
                     end
2051 
                  outFlag = 1;
2052 
               end
2053 
               3://plane
2054 
               begin
2055 
                  if(intraStepCount == 2)
2056 
                     begin
2057 
                        Bit#(16) topValSet = tempTopVec[3];
2058 
                        Bit#(8) topVal = topValSet[15:8];
2059 
                        Bit#(8) leftVal = tempLeftVec[8];
2060 
                        Bit#(13) tempVal = zeroExtend(topVal) + zeroExtend(leftVal);
2061 
                        intraSumA <= tempVal << 4;
2062 
                        intraSumB <= 0;
2063 
                        intraSumC <= 0;
2064 
                     end
2065 
                  else if(intraStepCount < 7)
2066 
                     begin
2067 
                        Bit#(3) xyPlusOne = truncate(intraStepCount)-2;
2068 
                        Bit#(3) xyPlusFour = truncate(intraStepCount)+1;
2069 
                        Bit#(4) twoMinusXY = 5-intraStepCount;
2070 
                        Bit#(16) topValSet1 = select(tempTopVec,xyPlusFour[2:1]);
2071 
                        Bit#(8) topVal1 = select16to8(topValSet1,xyPlusFour[0]);
2072 
                        Bit#(4) tempLeftIdx1 = {1'b0,xyPlusFour} + 1;
2073 
                        Bit#(8) leftVal1 = select(tempLeftVec,tempLeftIdx1);
2074 
 
2075 
                        Bit#(16) topValSet2 = select(tempTopVec,twoMinusXY[2:1]);
2076 
                        Bit#(8) topVal2;
2077 
                        Bit#(8) leftVal2 = select(tempLeftVec,twoMinusXY+1);
2078 
                        if(intraStepCount==6)
2079 
                           topVal2 = leftVal2;
2080 
                        else
2081 
                           topVal2 = select16to8(topValSet2,twoMinusXY[0]);
2082 
                        Bit#(15) diffH = zeroExtend(topVal1) - zeroExtend(topVal2);
2083 
                        Bit#(15) diffV = zeroExtend(leftVal1) - zeroExtend(leftVal2);
2084 
                        intraSumB <= intraSumB + (zeroExtend(xyPlusOne) * diffH);
2085 
                        intraSumC <= intraSumC + (zeroExtend(xyPlusOne) * diffV);
2086 
                        Int#(15) tempDisplayH = unpack(zeroExtend(xyPlusOne) * diffH);
2087 
                        Int#(15) tempDisplayV = unpack(zeroExtend(xyPlusOne) * diffV);
2088 
                        //$display( "TRACE Prediction: intraProcessStep intraChroma plane partH partV %0d %0d",tempDisplayH,tempDisplayV);////////////////////
2089 
                     end
2090 
                  else if(intraStepCount == 7)
2091 
                     begin
2092 
                        Int#(15) tempDisplayH = unpack(intraSumB);
2093 
                        Int#(15) tempDisplayV = unpack(intraSumC);
2094 
                        //$display( "TRACE Prediction: intraProcessStep intraChroma plane H V %0d %0d",tempDisplayH,tempDisplayV);////////////////////
2095 
                        Bit#(19) tempSumB = (34*signExtend(intraSumB)) + 32;
2096 
                        Bit#(19) tempSumC = (34*signExtend(intraSumC)) + 32;
2097 
                        intraSumB <= signExtend(tempSumB[18:6]);
2098 
                        intraSumC <= signExtend(tempSumC[18:6]);
2099 
                     end
2100 
                  else if(intraStepCount == 8)
2101 
                     begin
2102 
                        for(Integer pixelHor=0; pixelHor<4; pixelHor=pixelHor+1)
2103 
                           begin
2104 
                              Bit#(4)  positionHor = {1'b0,blockHor[0],fromInteger(pixelHor)};
2105 
                              Bit#(4)  positionVer = {1'b0,blockVer[0],pixelVer};
2106 
                              Bit#(17) tempProductB = signExtend(intraSumB) * signExtend(positionHor-3);
2107 
                              Bit#(17) tempProductC = signExtend(intraSumC) * signExtend(positionVer-3);
2108 
                              Bit#(17) tempTotal = tempProductB + tempProductC + zeroExtend(intraSumA) + 16;
2109 
                              if(tempTotal[16]==1)
2110 
                                 predVector[pixelHor] = 0;
2111 
                              else if(tempTotal[15:5] > 255)
2112 
                                 predVector[pixelHor] = 255;
2113 
                              else
2114 
                                 predVector[pixelHor] = tempTotal[12:5];
2115 
                           end
2116 
                        outFlag = 1;
2117 
                     end
2118 
                  else
2119 
                     $display( "ERROR Prediction: intraProcessStep intraChroma plane unknown intraStepCount");
2120 
               end
2121 
            endcase
2122 
         end
2123 
      else
2124 
         $display( "ERROR Prediction: intraProcessStep unknown intrastate");
2125 
 
2126 
      if(outFlag==1)
2127 
         begin
2128 
            predictedfifo.enq(predVector);
2129 
            pixelNum <= pixelNum+4;
2130 
            if(pixelNum == 12)
2131 
               begin
2132 
                  if(intraChromaFlag==0)
2133 
                     begin
2134 
                        blockNum <= blockNum+1;
2135 
                        if(blockNum == 15)
2136 
                           begin
2137 
                              intraChromaFlag <= 1;
2138 
                              intraStepCount <= 2;
2139 
                           end
2140 
                        else if(intrastate==Intra4x4)
2141 
                           intraStepCount <= 1;
2142 
                     end
2143 
                  else
2144 
                     begin
2145 
                        if(blockNum == 7)
2146 
                           begin
2147 
                              blockNum <= 0;
2148 
                              intraChromaFlag <= 0;
2149 
                              intraStepCount <= 0;
2150 
                              intra_chroma_pred_mode.deq();
2151 
                           end
2152 
                        else
2153 
                           begin
2154 
                              blockNum <= blockNum+1;
2155 
                              if(intra_chroma_pred_mode.first()==0)
2156 
                                 intraStepCount <= 2;
2157 
                              else if(blockNum==3)
2158 
                                 intraStepCount <= 2;
2159 
                           end
2160 
                     end
2161 
               end
2162 
         end
2163 
      else
2164 
         intraStepCount <= nextIntraStepCount;
2165 
      //$display( "Trace Prediction: intraProcessStep");
2166 
   endrule
2167 
 
2168 
 
2169 
 
2170 
   interface Client mem_client_intra;
2171 
      interface Get request  = fifoToGet(intraMemReqQ);
2172 
      interface Put response = fifoToPut(intraMemRespQ);
2173 
   endinterface
2174 
   interface Client mem_client_inter;
2175 
      interface Get request  = fifoToGet(interMemReqQ);
2176 
      interface Put response = fifoToPut(interMemRespQ);
2177 
   endinterface
2178 
   interface Client mem_client_buffer = interpolator.mem_client;
2179 
 
2180 
   interface Put ioin  = fifoToPut(infifo);
2181 
   interface Put ioin_InverseTrans  = fifoToPut(infifo_ITB);
2182 
   interface Get ioout = fifoToGet(outfifo);
2183 
 
2184 
 
2185 
endmodule
2186 
 
2187 
endpackage

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