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[/] [bluespec-h264/] [trunk/] [LumaChromaParallel/] [mkInterpolator.bsv] - Blame information for rev 90

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1 90 jamey.hick 
// The MIT License
2 
 
3 
// Copyright (c) 2006-2007 Massachusetts Institute of Technology
4 
 
5 
// Permission is hereby granted, free of charge, to any person obtaining a copy
6 
// of this software and associated documentation files (the "Software"), to deal
7 
// in the Software without restriction, including without limitation the rights
8 
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
9 
// copies of the Software, and to permit persons to whom the Software is
10 
// furnished to do so, subject to the following conditions:
11 
 
12 
// The above copyright notice and this permission notice shall be included in
13 
// all copies or substantial portions of the Software.
14 
 
15 
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
18 
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
20 
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
21 
// THE SOFTWARE.
22 
//**********************************************************************
23 
// interpolator implementation
24 
//----------------------------------------------------------------------
25 
//
26 
//
27 
 
28 
package mkInterpolator;
29 
 
30 
import H264Types::*;
31 
import IInterpolator::*;
32 
import FIFO::*;
33 
import Vector::*;
34 
 
35 
import Connectable::*;
36 
import GetPut::*;
37 
import ClientServer::*;
38 
 
39 
 
40 
//-----------------------------------------------------------
41 
// Local Datatypes
42 
//-----------------------------------------------------------
43 
 
44 
typedef union tagged
45 
{
46 
 struct { Bit#(2) xFracL; Bit#(2) yFracL; Bit#(2) offset; IPBlockType bt; } IPWLuma;
47 
 struct { Bit#(3) xFracC; Bit#(3) yFracC; Bit#(2) offset; IPBlockType bt; } IPWChroma;
48 
}
49 
InterpolatorWT deriving(Eq,Bits);
50 
 
51 
 
52 
//-----------------------------------------------------------
53 
// Helper functions
54 
 
55 
function Bit#(8) clip1y10to8( Bit#(10) innum );
56 
   if(innum[9] == 1)
57 
      return 0;
58 
   else if(innum[8] == 1)
59 
      return 255;
60 
   else
61 
      return truncate(innum);
62 
endfunction
63 
 
64 
function Bit#(15) interpolate8to15( Bit#(8) in0, Bit#(8) in1, Bit#(8) in2, Bit#(8) in3, Bit#(8) in4, Bit#(8) in5 );
65 
   return zeroExtend(in0) - 5*zeroExtend(in1) + 20*zeroExtend(in2) + 20*zeroExtend(in3) - 5*zeroExtend(in4) + zeroExtend(in5);
66 
endfunction
67 
 
68 
function Bit#(8) interpolate15to8( Bit#(15) in0, Bit#(15) in1, Bit#(15) in2, Bit#(15) in3, Bit#(15) in4, Bit#(15) in5 );
69 
   Bit#(20) temp = signExtend(in0) - 5*signExtend(in1) + 20*signExtend(in2) + 20*signExtend(in3) - 5*signExtend(in4) + signExtend(in5) + 512;
70 
   return clip1y10to8(truncate(temp>>10));
71 
endfunction
72 
 
73 
 
74 
 
75 
//-----------------------------------------------------------
76 
// Interpolation Module
77 
//-----------------------------------------------------------
78 
 
79 
 
80 
(* synthesize *)
81 
module mkInterpolator( Interpolator );
82 
 
83 
   FIFO#(InterpolatorIT) reqfifoLoad <- mkSizedFIFO(interpolator_reqfifoLoad_size);
84 
   FIFO#(InterpolatorWT) reqfifoWork1 <- mkSizedFIFO(interpolator_reqfifoWork_size);
85 
   Reg#(Maybe#(InterpolatorWT)) reqregWork2 <- mkReg(Invalid);
86 
   FIFO#(Vector#(4,Bit#(8))) outfifo <- mkFIFO;
87 
   Reg#(Bool) endOfFrameFlag <- mkReg(False);
88 
   FIFO#(InterpolatorLoadReq)  memReqQ  <- mkFIFO;
89 
   FIFO#(InterpolatorLoadResp) memRespQ <- mkSizedFIFO(interpolator_memRespQ_size);
90 
 
91 
   Reg#(Bit#(PicWidthSz))  picWidth  <- mkReg(maxPicWidthInMB);
92 
   Reg#(Bit#(PicHeightSz)) picHeight <- mkReg(0);
93 
 
94 
   RFile1#(Bit#(6),Vector#(4,Bit#(15))) workFile  <- mkRFile1Full();
95 
   RFile1#(Bit#(6),Vector#(4,Bit#(8)))  storeFile <- mkRFile1Full();
96 
   Reg#(Bit#(1)) workFileFlag <- mkReg(0);
97 
   RFile1#(Bit#(4),Vector#(4,Bit#(8))) resultFile <- mkRFile1Full();
98 
 
99 
   Reg#(Bit#(1)) loadStage  <- mkReg(0);
100 
   Reg#(Bit#(2)) loadHorNum <- mkReg(0);
101 
   Reg#(Bit#(4)) loadVerNum <- mkReg(0);
102 
 
103 
   Reg#(Bit#(2)) work1MbPart    <- mkReg(0);//only for Chroma
104 
   Reg#(Bit#(2)) work1SubMbPart <- mkReg(0);//only for Chroma
105 
   Reg#(Bit#(1)) work1Stage     <- mkReg(0);
106 
   Reg#(Bit#(2)) work1HorNum    <- mkReg(0);
107 
   Reg#(Bit#(4)) work1VerNum    <- mkReg(0);
108 
   Reg#(Vector#(20,Bit#(8))) work1Vector8 <- mkRegU;
109 
   Reg#(Bool) work1Done <- mkReg(False);
110 
 
111 
   Reg#(Bit#(2)) work2SubMbPart <- mkReg(0);
112 
   Reg#(Bit#(2)) work2HorNum    <- mkReg(0);
113 
   Reg#(Bit#(4)) work2VerNum    <- mkReg(0);
114 
   Reg#(Vector#(20,Bit#(8))) work2Vector8 <- mkRegU;
115 
   Reg#(Vector#(20,Bit#(15))) work2Vector15 <- mkRegU;
116 
   Reg#(Vector#(16,Bit#(1))) resultReady <- mkReg(replicate(0));
117 
   Reg#(Bool) work2Done <- mkReg(False);
118 
   Reg#(Bool) work8x8Done <- mkReg(False);
119 
 
120 
   Reg#(Bit#(2)) outBlockNum <- mkReg(0);
121 
   Reg#(Bit#(2)) outPixelNum <- mkReg(0);
122 
   Reg#(Bool) outDone <- mkReg(False);
123 
 
124 
 
125 
   rule sendEndOfFrameReq( endOfFrameFlag );
126 
      endOfFrameFlag <= False;
127 
      memReqQ.enq(IPLoadEndFrame);
128 
   endrule
129 
 
130 
 
131 
   rule loadLuma( reqfifoLoad.first() matches tagged IPLuma .reqdata &&& !endOfFrameFlag );
132 
      Bit#(2) xfracl = reqdata.mvhor[1:0];
133 
      Bit#(2) yfracl = reqdata.mvver[1:0];
134 
      Bit#(2) offset = reqdata.mvhor[3:2];
135 
      Bool twoStage = (xfracl==1||xfracl==3) && (yfracl==1||yfracl==3);
136 
      Bool horInter = (twoStage ? loadStage==1 : xfracl!=0);
137 
      Bool verInter = (twoStage ? loadStage==0 : yfracl!=0);
138 
      Bit#(2) offset2 = reqdata.mvhor[3:2] + ((twoStage&&verInter&&xfracl==3) ? 1 : 0);
139 
      Bit#(1) horOut = 0;
140 
      Bit#(TAdd#(PicWidthSz,2)) horAddr;
141 
      Bit#(TAdd#(PicHeightSz,4)) verAddr;
142 
      Bit#(TAdd#(PicWidthSz,12)) horTemp = zeroExtend({reqdata.hor,2'b00}) + zeroExtend({loadHorNum,2'b00}) + (xfracl==3&&(yfracl==1||yfracl==3)&&loadStage==0 ? 1 : 0);
143 
      Bit#(TAdd#(PicHeightSz,10)) verTemp = zeroExtend(reqdata.ver) + zeroExtend(loadVerNum) + (yfracl==3&&(xfracl==1||xfracl==3)&&loadStage==1 ? 1 : 0);
144 
      Bit#(13) mvhortemp = signExtend(reqdata.mvhor[13:2])-(horInter?2:0);
145 
      Bit#(11) mvvertemp = signExtend(reqdata.mvver[11:2])-(verInter?2:0);
146 
      if(mvhortemp[12]==1 && zeroExtend(0-mvhortemp)>horTemp)
147 
         begin
148 
            horAddr = 0;
149 
            horOut = 1;
150 
         end
151 
      else
152 
         begin
153 
            horTemp = horTemp + signExtend(mvhortemp);
154 
            if(horTemp>=zeroExtend({picWidth,4'b0000}))
155 
               begin
156 
                  horAddr = {picWidth-1,2'b11};
157 
                  horOut = 1;
158 
               end
159 
            else
160 
               horAddr = truncate(horTemp>>2);
161 
         end
162 
      if(mvvertemp[10]==1 && zeroExtend(0-mvvertemp)>verTemp)
163 
         verAddr = 0;
164 
      else
165 
         begin
166 
            verTemp = verTemp + signExtend(mvvertemp);
167 
            if(verTemp>=zeroExtend({picHeight,4'b0000}))
168 
               verAddr = {picHeight-1,4'b1111};
169 
            else
170 
               verAddr = truncate(verTemp);
171 
         end
172 
      memReqQ.enq(IPLoadLuma {refIdx:reqdata.refIdx,horOutOfBounds:horOut,hor:horAddr,ver:verAddr});
173 
      Bool verFirst = twoStage || (yfracl==2&&(xfracl==1||xfracl==3));
174 
      Bit#(2) loadHorNumMax = (reqdata.bt==IP8x8||reqdata.bt==IP8x4 ? 1 : 0) + (horInter ? 2 : (offset2==0 ? 0 : 1));
175 
      Bit#(4) loadVerNumMax = (reqdata.bt==IP8x8||reqdata.bt==IP4x8 ? 7 : 3) + (verInter ? 5 : 0);
176 
      if(verFirst)
177 
         begin
178 
            if(loadVerNum < loadVerNumMax)
179 
               loadVerNum <= loadVerNum+1;
180 
            else
181 
               begin
182 
                  loadVerNum <= 0;
183 
                  if(loadHorNum < loadHorNumMax)
184 
                     begin
185 
                        if(loadStage == 1)
186 
                           begin
187 
                              offset = offset + (xfracl==3 ? 1 : 0);
188 
                              if(!(offset==1 || (xfracl==3 && offset==2)))
189 
                                 loadHorNum <= loadHorNumMax;
190 
                              else
191 
                                 begin
192 
                                    loadHorNum <= 0;
193 
                                    loadStage <= 0;
194 
                                    reqfifoLoad.deq();
195 
                                 end
196 
                           end
197 
                        else
198 
                           loadHorNum <= loadHorNum+1;
199 
                     end
200 
                  else
201 
                     begin
202 
                        if(twoStage && loadStage==0)
203 
                           begin
204 
                              offset = offset + (xfracl==3 ? 1 : 0);
205 
                              if((xfracl==3 ? offset<3 : offset<2))
206 
                                 loadHorNum <= 0;
207 
                              else
208 
                                 loadHorNum <= loadHorNumMax+1;
209 
                              loadStage <= 1;
210 
                           end
211 
                        else
212 
                           begin
213 
                              loadHorNum <= 0;
214 
                              loadStage <= 0;
215 
                              reqfifoLoad.deq();
216 
                           end
217 
                     end
218 
               end
219 
         end
220 
      else
221 
         begin
222 
            if(loadHorNum < loadHorNumMax)
223 
               loadHorNum <= loadHorNum+1;
224 
            else
225 
               begin
226 
                  loadHorNum <= 0;
227 
                  if(loadVerNum < loadVerNumMax)
228 
                     loadVerNum <= loadVerNum+1;
229 
                  else
230 
                     begin
231 
                        loadVerNum <= 0;
232 
                        reqfifoLoad.deq();
233 
                     end
234 
               end
235 
         end
236 
      if(reqdata.bt==IP16x16 || reqdata.bt==IP16x8 || reqdata.bt==IP8x16)
237 
         $display( "ERROR Interpolation: loadLuma block sizes > 8x8 not supported");
238 
      $display( "PARDEBLOCK Trace interpolator: loadLuma %h %h %h %h %h %h %h", xfracl, yfracl, loadHorNum, loadVerNum, reqdata.refIdx, horAddr, verAddr);
239 
   endrule
240 
 
241 
 
242 
   rule loadChroma( reqfifoLoad.first() matches tagged IPChroma .reqdata &&& !endOfFrameFlag );
243 
      Bit#(3) xfracc = reqdata.mvhor[2:0];
244 
      Bit#(3) yfracc = reqdata.mvver[2:0];
245 
      Bit#(2) offset = reqdata.mvhor[4:3]+{reqdata.hor[0],1'b0};
246 
      Bit#(1) horOut = 0;
247 
      Bit#(TAdd#(PicWidthSz,1)) horAddr;
248 
      Bit#(TAdd#(PicHeightSz,3)) verAddr;
249 
      Bit#(TAdd#(PicWidthSz,11)) horTemp = zeroExtend({reqdata.hor,1'b0}) + zeroExtend({loadHorNum,2'b00});
250 
      Bit#(TAdd#(PicHeightSz,9)) verTemp = zeroExtend(reqdata.ver) + zeroExtend(loadVerNum);
251 
      if(reqdata.mvhor[13]==1 && zeroExtend(0-reqdata.mvhor[13:3])>horTemp)
252 
         begin
253 
            horAddr = 0;
254 
            horOut = 1;
255 
         end
256 
      else
257 
         begin
258 
            horTemp = horTemp + signExtend(reqdata.mvhor[13:3]);
259 
            if(horTemp>=zeroExtend({picWidth,3'b000}))
260 
               begin
261 
                  horAddr = {picWidth-1,1'b1};
262 
                  horOut = 1;
263 
               end
264 
            else
265 
               horAddr = truncate(horTemp>>2);
266 
         end
267 
      if(reqdata.mvver[11]==1 && zeroExtend(0-reqdata.mvver[11:3])>verTemp)
268 
         verAddr = 0;
269 
      else
270 
         begin
271 
            verTemp = verTemp + signExtend(reqdata.mvver[11:3]);
272 
            if(verTemp>=zeroExtend({picHeight,3'b000}))
273 
               verAddr = {picHeight-1,3'b111};
274 
            else
275 
               verAddr = truncate(verTemp);
276 
         end
277 
      memReqQ.enq(IPLoadChroma {refIdx:reqdata.refIdx,uv:reqdata.uv,horOutOfBounds:horOut,hor:horAddr,ver:verAddr});
278 
      Bit#(2) loadHorNumMax = (reqdata.bt==IP4x8||reqdata.bt==IP4x4 ? (offset[1]==0||(xfracc==0&&offset!=3) ? 0 : 1) : ((reqdata.bt==IP16x16||reqdata.bt==IP16x8 ? 1 : 0) + (xfracc==0&&offset==0 ? 0 : 1)));
279 
      Bit#(4) loadVerNumMax = (reqdata.bt==IP16x16||reqdata.bt==IP8x16 ? 7 : (reqdata.bt==IP16x8||reqdata.bt==IP8x8||reqdata.bt==IP4x8 ? 3 : 1)) + (yfracc==0 ? 0 : 1);
280 
      if(loadHorNum < loadHorNumMax)
281 
         loadHorNum <= loadHorNum+1;
282 
      else
283 
         begin
284 
            loadHorNum <= 0;
285 
            if(loadVerNum < loadVerNumMax)
286 
               loadVerNum <= loadVerNum+1;
287 
            else
288 
               begin
289 
                  loadVerNum <= 0;
290 
                  reqfifoLoad.deq();
291 
               end
292 
         end
293 
      $display( "PARDEB Trace interpolator: loadChroma %h %h %h %h %h %h %h", xfracc, yfracc, loadHorNum, loadVerNum, reqdata.refIdx, horAddr, verAddr);
294 
   endrule
295 
 
296 
 
297 
   rule work1Luma ( reqfifoWork1.first() matches tagged IPWLuma .reqdata &&& !work1Done );
298 
      let xfracl = reqdata.xFracL;
299 
      let yfracl = reqdata.yFracL;
300 
      let offset = reqdata.offset;
301 
      let blockT = reqdata.bt;
302 
      Bool twoStage = (xfracl==1||xfracl==3) && (yfracl==1||yfracl==3);
303 
      Vector#(20,Bit#(8)) work1Vector8Next = work1Vector8;
304 
      if(memRespQ.first() matches tagged IPLoadResp .tempreaddata)
305 
         begin
306 
            memRespQ.deq();
307 
            Vector#(4,Bit#(8)) readdata = replicate(0);
308 
            readdata[0] = tempreaddata[7:0];
309 
            readdata[1] = tempreaddata[15:8];
310 
            readdata[2] = tempreaddata[23:16];
311 
            readdata[3] = tempreaddata[31:24];
312 
            //$display( "Trace interpolator: workLuma stage 0 readdata %h %h %h %h %h %h", workHorNum, workVerNum, readdata[3], readdata[2], readdata[1], readdata[0] );
313 
            Vector#(4,Bit#(8)) tempResult8 = replicate(0);
314 
            Vector#(4,Bit#(15)) tempResult15 = replicate(0);
315 
            if(xfracl==0 || yfracl==0 || xfracl==2)
316 
               begin
317 
                  if(xfracl==0)//reorder
318 
                     begin
319 
                        for(Integer ii=0; ii<4; ii=ii+1)
320 
                           begin
321 
                              Bit#(2) offsetplusii = offset+fromInteger(ii);
322 
                              if(offset <= 3-fromInteger(ii) && offset!=0)
323 
                                 tempResult8[ii] = work1Vector8[offsetplusii];
324 
                              else
325 
                                 tempResult8[ii] = readdata[offsetplusii];
326 
                              work1Vector8Next[ii] = readdata[ii];
327 
                           end
328 
                        for(Integer ii=0; ii<4; ii=ii+1)
329 
                           tempResult15[ii] = zeroExtend({tempResult8[ii],5'b00000});
330 
                     end
331 
                  else//horizontal interpolation
332 
                     begin
333 
                        offset = offset-2;
334 
                        for(Integer ii=0; ii<8; ii=ii+1)
335 
                           work1Vector8Next[ii] = work1Vector8[ii+4];
336 
                        for(Integer ii=0; ii<4; ii=ii+1)
337 
                           begin
338 
                              Bit#(4) tempIndex = fromInteger(ii) + 8 - zeroExtend(offset);
339 
                              work1Vector8Next[tempIndex] = readdata[ii];
340 
                           end
341 
                        for(Integer ii=0; ii<4; ii=ii+1)
342 
                           begin
343 
                              tempResult15[ii] = interpolate8to15(work1Vector8Next[ii],work1Vector8Next[ii+1],work1Vector8Next[ii+2],work1Vector8Next[ii+3],work1Vector8Next[ii+4],work1Vector8Next[ii+5]);
344 
                              tempResult8[ii] = clip1y10to8(truncate((tempResult15[ii]+16)>>5));
345 
                              if(xfracl == 1)
346 
                                 tempResult8[ii] = truncate(({1'b0,tempResult8[ii]} + {1'b0,work1Vector8Next[ii+2]} + 1) >> 1);
347 
                              else if(xfracl == 3)
348 
                                 tempResult8[ii] = truncate(({1'b0,tempResult8[ii]} + {1'b0,work1Vector8Next[ii+3]} + 1) >> 1);
349 
                           end
350 
                     end
351 
                  Bit#(2) workHorNumOffset = (xfracl!=0 ? 2 : (reqdata.offset==0 ? 0 : 1));
352 
                  if(work1HorNum >= workHorNumOffset)
353 
                     begin
354 
                        Bit#(1) horAddr = truncate(work1HorNum-workHorNumOffset);
355 
                        if(yfracl == 0)
356 
                           begin
357 
                              for(Integer ii=0; ii<4; ii=ii+1)
358 
                                 tempResult15[ii] = zeroExtend({tempResult8[ii],5'b00000});
359 
                           end
360 
                        workFile.upd({workFileFlag,work1VerNum,horAddr},tempResult15);
361 
                     end
362 
                  Bit#(2) workHorNumMax = (blockT==IP8x8||blockT==IP8x4 ? 1 : 0) + workHorNumOffset;
363 
                  Bit#(4) workVerNumMax = (blockT==IP8x8||blockT==IP4x8 ? 7 : 3) + (yfracl!=0 ? 5 : 0);
364 
                  if(work1HorNum < workHorNumMax)
365 
                     work1HorNum <= work1HorNum+1;
366 
                  else
367 
                     begin
368 
                        work1HorNum <= 0;
369 
                        if(work1VerNum < workVerNumMax)
370 
                           work1VerNum <= work1VerNum+1;
371 
                        else
372 
                           begin
373 
                              work1VerNum <= 0;
374 
                              work1Done <= True;
375 
                           end
376 
                     end
377 
               end
378 
            else if(work1Stage == 0)//vertical interpolation
379 
               begin
380 
                  offset = offset + (xfracl==3&&(yfracl==1||yfracl==3) ? 1 : 0);
381 
                  for(Integer ii=0; ii<4; ii=ii+1)
382 
                     tempResult15[ii] = interpolate8to15(work1Vector8[ii],work1Vector8[ii+4],work1Vector8[ii+8],work1Vector8[ii+12],work1Vector8[ii+16],readdata[ii]);
383 
                  for(Integer ii=0; ii<16; ii=ii+1)
384 
                     work1Vector8Next[ii] = work1Vector8[ii+4];
385 
                  for(Integer ii=0; ii<4; ii=ii+1)
386 
                     work1Vector8Next[ii+16] = readdata[ii];
387 
                  Bit#(2) workHorNumMax = (blockT==IP8x8||blockT==IP8x4 ? 1 : 0) + (yfracl==2 ? 2 : (offset==0 ? 0 : 1));
388 
                  Bit#(4) workVerNumMax = (blockT==IP8x8||blockT==IP4x8 ? 7 : 3) + 5;
389 
                  Bit#(2) horAddr = work1HorNum;
390 
                  Bit#(3) verAddr = truncate(work1VerNum-5);
391 
                  if(work1VerNum > 4)
392 
                     begin
393 
                        workFile.upd({workFileFlag,verAddr,horAddr},tempResult15);
394 
                        //$display( "Trace interpolator: workLuma stage 0 result %h %h %h %h %h %h %h", workHorNum, workVerNum, {verAddr,horAddr}, tempResult15[3], tempResult15[2], tempResult15[1], tempResult15[0]);
395 
                     end
396 
                  if(twoStage)
397 
                     begin
398 
                        Bit#(2) storeHorAddr = work1HorNum;
399 
                        Bit#(4) storeVerAddr = work1VerNum;
400 
                        if((xfracl==3 ? offset<3 : offset<2))
401 
                           storeHorAddr = storeHorAddr+1;
402 
                        if(yfracl==3)
403 
                           storeVerAddr = storeVerAddr-3;
404 
                        else
405 
                           storeVerAddr = storeVerAddr-2;
406 
                        if(storeVerAddr < 8)
407 
                           storeFile.upd({workFileFlag,storeVerAddr[2:0],storeHorAddr},readdata);
408 
                     end
409 
                  if(work1VerNum < workVerNumMax)
410 
                     work1VerNum <= work1VerNum+1;
411 
                  else
412 
                     begin
413 
                        work1VerNum <= 0;
414 
                        if(work1HorNum < workHorNumMax)
415 
                           work1HorNum <= work1HorNum+1;
416 
                        else
417 
                           begin
418 
                              if(twoStage)
419 
                                 begin
420 
                                    work1Stage <= 1;
421 
                                    if((xfracl==3 ? offset<3 : offset<2))
422 
                                       work1HorNum <= 0;
423 
                                    else
424 
                                       work1HorNum <= workHorNumMax+1;
425 
                                 end
426 
                              else
427 
                                 begin
428 
                                    work1HorNum <= 0;
429 
                                    work1Done <= True;
430 
                                 end
431 
                           end
432 
                     end
433 
               end
434 
            else//second stage of twoStage
435 
               begin
436 
                  storeFile.upd({workFileFlag,work1VerNum[2:0],work1HorNum},readdata);
437 
                  Bit#(2) workHorNumMax = (blockT==IP8x8||blockT==IP8x4 ? 1 : 0) + 2;
438 
                  Bit#(4) workVerNumMax = (blockT==IP8x8||blockT==IP4x8 ? 7 : 3);
439 
                  if(work1VerNum < workVerNumMax)
440 
                     work1VerNum <= work1VerNum+1;
441 
                  else
442 
                     begin
443 
                        work1VerNum <= 0;
444 
                        offset = offset + (xfracl==3 ? 1 : 0);
445 
                        if(work1HorNum
446 
                           work1HorNum <= workHorNumMax;
447 
                        else
448 
                           begin
449 
                              work1HorNum <= 0;
450 
                              work1Stage <= 0;
451 
                              work1Done <= True;
452 
                           end
453 
                     end
454 
               end
455 
         end
456 
      work1Vector8 <= work1Vector8Next;
457 
      $display( "PARDEBLOCK Trace interpolator: work1Luma %h %h %h %h %h %h", xfracl, yfracl, work1HorNum, work1VerNum, offset, work1Stage);
458 
   endrule
459 
 
460 
 
461 
   rule work2Luma ( reqregWork2 matches tagged Valid .vdata &&& vdata matches tagged IPWLuma .reqdata &&& !work2Done &&& !work8x8Done );
462 
      let xfracl = reqdata.xFracL;
463 
      let yfracl = reqdata.yFracL;
464 
      let offset = reqdata.offset;
465 
      let blockT = reqdata.bt;
466 
      Vector#(20,Bit#(8)) work2Vector8Next = work2Vector8;
467 
      Vector#(20,Bit#(15)) work2Vector15Next = work2Vector15;
468 
      Vector#(16,Bit#(1)) resultReadyNext = resultReady;
469 
      Vector#(4,Bit#(8)) tempResult8 = replicate(0);
470 
      Vector#(4,Bit#(15)) readdata = replicate(0);
471 
      if(yfracl==0)
472 
         begin
473 
            readdata = workFile.sub({(1-workFileFlag),1'b0,work2VerNum[1],work2HorNum,work2VerNum[0]});
474 
            for(Integer ii=0; ii<4; ii=ii+1)
475 
               tempResult8[ii] = (readdata[ii])[12:5];
476 
            resultFile.upd({work2VerNum[1],work2HorNum,work2VerNum[0]},tempResult8);
477 
            resultReadyNext[{work2VerNum[1],work2HorNum,work2VerNum[0]}] = 1;
478 
            work2HorNum <= work2HorNum+1;
479 
            if(work2HorNum == 3)
480 
               begin
481 
                  if(work2VerNum == 3)
482 
                     begin
483 
                        work2VerNum <= 0;
484 
                        work2Done <= True;
485 
                        if(((blockT==IP4x8 || blockT==IP8x4) && work2SubMbPart==0) || (blockT==IP4x4 && work2SubMbPart<3))
486 
                           work2SubMbPart <= work2SubMbPart+1;
487 
                        else
488 
                           begin
489 
                              work2SubMbPart <= 0;
490 
                              work8x8Done <= True;
491 
                           end
492 
                     end
493 
                  else
494 
                     work2VerNum <= work2VerNum+1;
495 
               end
496 
         end
497 
      else if(xfracl==0 || xfracl==2)//vertical interpolation
498 
         begin
499 
            readdata = workFile.sub({(1-workFileFlag),work2VerNum,work2HorNum[0]});
500 
            for(Integer ii=0; ii<4; ii=ii+1)
501 
               begin
502 
                  tempResult8[ii] = interpolate15to8(work2Vector15[ii],work2Vector15[ii+4],work2Vector15[ii+8],work2Vector15[ii+12],work2Vector15[ii+16],readdata[ii]);
503 
                  if(yfracl == 1)
504 
                     tempResult8[ii] = truncate(({1'b0,tempResult8[ii]} + {1'b0,clip1y10to8(truncate((work2Vector15[ii+8]+16)>>5))} + 1) >> 1);
505 
                  else if(yfracl == 3)
506 
                     tempResult8[ii] = truncate(({1'b0,tempResult8[ii]} + {1'b0,clip1y10to8(truncate((work2Vector15[ii+12]+16)>>5))} + 1) >> 1);
507 
               end
508 
            for(Integer ii=0; ii<16; ii=ii+1)
509 
               work2Vector15Next[ii] = work2Vector15[ii+4];
510 
            for(Integer ii=0; ii<4; ii=ii+1)
511 
               work2Vector15Next[ii+16] = readdata[ii];
512 
            Bit#(2) workHorNumMax = 1;
513 
            Bit#(4) workVerNumMax = (blockT==IP8x8||blockT==IP4x8 ? 7 : 3) + 5;
514 
            if(work2VerNum > 4)
515 
               begin
516 
                  Bit#(1) horAddr = truncate(work2HorNum);
517 
                  Bit#(3) verAddr = truncate(work2VerNum-5);
518 
                  horAddr = horAddr + ((blockT==IP4x8&&work2SubMbPart==1)||(blockT==IP4x4&&work2SubMbPart[0]==1) ? 1 : 0);
519 
                  verAddr = verAddr + ((blockT==IP8x4&&work2SubMbPart==1)||(blockT==IP4x4&&work2SubMbPart[1]==1) ? 4 : 0);
520 
                  resultFile.upd({verAddr,horAddr},tempResult8);
521 
                  resultReadyNext[{verAddr,horAddr}] = 1;
522 
               end
523 
            if(work2VerNum < workVerNumMax)
524 
               work2VerNum <= work2VerNum+1;
525 
            else
526 
               begin
527 
                  work2VerNum <= 0;
528 
                  if(work2HorNum < workHorNumMax)
529 
                     work2HorNum <= work2HorNum+1;
530 
                  else
531 
                     begin
532 
                        work2HorNum <= 0;
533 
                        work2Done <= True;
534 
                        if(((blockT==IP4x8 || blockT==IP8x4) && work2SubMbPart==0) || (blockT==IP4x4 && work2SubMbPart<3))
535 
                           work2SubMbPart <= work2SubMbPart+1;
536 
                        else
537 
                           begin
538 
                              work2SubMbPart <= 0;
539 
                              work8x8Done <= True;
540 
                           end
541 
                     end
542 
               end
543 
         end
544 
      else//horizontal interpolation
545 
         begin
546 
            offset = offset-2;
547 
            if(yfracl == 2)
548 
               begin
549 
                  readdata = workFile.sub({(1-workFileFlag),work2VerNum[2:0],work2HorNum});
550 
                  for(Integer ii=0; ii<8; ii=ii+1)
551 
                     work2Vector15Next[ii] = work2Vector15[ii+4];
552 
                  for(Integer ii=0; ii<4; ii=ii+1)
553 
                     begin
554 
                        Bit#(4) tempIndex = fromInteger(ii) + 8 - zeroExtend(offset);
555 
                        work2Vector15Next[tempIndex] = readdata[ii];
556 
                     end
557 
                  for(Integer ii=0; ii<4; ii=ii+1)
558 
                     begin
559 
                        tempResult8[ii] = interpolate15to8(work2Vector15Next[ii],work2Vector15Next[ii+1],work2Vector15Next[ii+2],work2Vector15Next[ii+3],work2Vector15Next[ii+4],work2Vector15Next[ii+5]);
560 
                        if(xfracl == 1)
561 
                           tempResult8[ii] = truncate(({1'b0,tempResult8[ii]} + {1'b0,clip1y10to8(truncate((work2Vector15Next[ii+2]+16)>>5))} + 1) >> 1);
562 
                        else if(xfracl == 3)
563 
                           tempResult8[ii] = truncate(({1'b0,tempResult8[ii]} + {1'b0,clip1y10to8(truncate((work2Vector15Next[ii+3]+16)>>5))} + 1) >> 1);
564 
                     end
565 
               end
566 
            else
567 
               begin
568 
                  Vector#(4,Bit#(8)) readdata8 = storeFile.sub({(1-workFileFlag),work2VerNum[2:0],work2HorNum});
569 
                  for(Integer ii=0; ii<8; ii=ii+1)
570 
                     work2Vector8Next[ii] = work2Vector8[ii+4];
571 
                  for(Integer ii=0; ii<4; ii=ii+1)
572 
                     begin
573 
                        Bit#(4) tempIndex = fromInteger(ii) + 8 - zeroExtend(offset);
574 
                        work2Vector8Next[tempIndex] = readdata8[ii];
575 
                     end
576 
                  Vector#(4,Bit#(15)) tempResult15 = replicate(0);
577 
                  for(Integer ii=0; ii<4; ii=ii+1)
578 
                     begin
579 
                        tempResult15[ii] = interpolate8to15(work2Vector8Next[ii],work2Vector8Next[ii+1],work2Vector8Next[ii+2],work2Vector8Next[ii+3],work2Vector8Next[ii+4],work2Vector8Next[ii+5]);
580 
                        tempResult8[ii] = clip1y10to8(truncate((tempResult15[ii]+16)>>5));
581 
                     end
582 
                  Bit#(2) verOffset;
583 
                  Vector#(4,Bit#(15)) verResult15 = replicate(0);
584 
                  if(xfracl == 1)
585 
                     verOffset = reqdata.offset;
586 
                  else
587 
                     verOffset = reqdata.offset+1;
588 
                  readdata = workFile.sub({(1-workFileFlag),work2VerNum[2:0],(work2HorNum-2+(verOffset==0?0:1))});
589 
                  for(Integer ii=0; ii<4; ii=ii+1)
590 
                     begin
591 
                        Bit#(2) offsetplusii = verOffset+fromInteger(ii);
592 
                        if(verOffset <= 3-fromInteger(ii) && verOffset!=0)
593 
                           verResult15[ii] = work2Vector15[offsetplusii];
594 
                        else
595 
                           verResult15[ii] = readdata[offsetplusii];
596 
                        work2Vector15Next[ii] = readdata[ii];
597 
                     end
598 
                  for(Integer ii=0; ii<4; ii=ii+1)
599 
                     begin
600 
                        Bit#(9) tempVal = zeroExtend(clip1y10to8(truncate((verResult15[ii]+16)>>5)));
601 
                        tempResult8[ii] = truncate((tempVal+zeroExtend(tempResult8[ii])+1)>>1);
602 
                     end
603 
               end
604 
            if(work2HorNum >= 2)
605 
               begin
606 
                  Bit#(1) horAddr = truncate(work2HorNum-2);
607 
                  Bit#(3) verAddr = truncate(work2VerNum);
608 
                  horAddr = horAddr + ((blockT==IP4x8&&work2SubMbPart==1)||(blockT==IP4x4&&work2SubMbPart[0]==1) ? 1 : 0);
609 
                  verAddr = verAddr + ((blockT==IP8x4&&work2SubMbPart==1)||(blockT==IP4x4&&work2SubMbPart[1]==1) ? 4 : 0);
610 
                  resultFile.upd({verAddr,horAddr},tempResult8);
611 
                  resultReadyNext[{verAddr,horAddr}] = 1;
612 
                  //$display( "Trace interpolator: workLuma stage 1 result %h %h %h %h %h %h %h %h", workHorNum, workVerNum, {verAddr,horAddr}, tempResult8[3], tempResult8[2], tempResult8[1], tempResult8[0], pack(resultReadyNext));
613 
               end
614 
            Bit#(2) workHorNumMax = (blockT==IP8x8||blockT==IP8x4 ? 1 : 0) + 2;
615 
            Bit#(4) workVerNumMax = (blockT==IP8x8||blockT==IP4x8 ? 7 : 3);
616 
            if(work2HorNum < workHorNumMax)
617 
               work2HorNum <= work2HorNum+1;
618 
            else
619 
               begin
620 
                  work2HorNum <= 0;
621 
                  if(work2VerNum < workVerNumMax)
622 
                     work2VerNum <= work2VerNum+1;
623 
                  else
624 
                     begin
625 
                        work2VerNum <= 0;
626 
                        work2Done <= True;
627 
                        if(((blockT==IP4x8 || blockT==IP8x4) && work2SubMbPart==0) || (blockT==IP4x4 && work2SubMbPart<3))
628 
                           work2SubMbPart <= work2SubMbPart+1;
629 
                        else
630 
                           begin
631 
                              work2SubMbPart <= 0;
632 
                              work8x8Done <= True;
633 
                           end
634 
                     end
635 
               end
636 
         end
637 
      work2Vector8 <= work2Vector8Next;
638 
      work2Vector15 <= work2Vector15Next;
639 
      resultReady <= resultReadyNext;
640 
      $display( "PARDEBLOCK Trace interpolator: work2Luma %h %h %h %h %h", xfracl, yfracl, work2HorNum, work2VerNum, offset);
641 
   endrule
642 
 
643 
 
644 
   rule work1Chroma ( reqfifoWork1.first() matches tagged IPWChroma .reqdata &&& !work1Done );
645 
      Bit#(4) xfracc = zeroExtend(reqdata.xFracC);
646 
      Bit#(4) yfracc = zeroExtend(reqdata.yFracC);
647 
      let offset = reqdata.offset;
648 
      let blockT = reqdata.bt;
649 
      Vector#(20,Bit#(8)) work1Vector8Next = work1Vector8;
650 
      if(memRespQ.first() matches tagged IPLoadResp .tempreaddata)
651 
         begin
652 
            memRespQ.deq();
653 
            Vector#(4,Bit#(8)) readdata = replicate(0);
654 
            readdata[0] = tempreaddata[7:0];
655 
            readdata[1] = tempreaddata[15:8];
656 
            readdata[2] = tempreaddata[23:16];
657 
            readdata[3] = tempreaddata[31:24];
658 
            Vector#(5,Bit#(8)) tempWork8 = replicate(0);
659 
            Vector#(5,Bit#(8)) tempPrev8 = replicate(0);
660 
            Vector#(4,Bit#(8)) tempResult8 = replicate(0);
661 
            Bool resultReadyFlag = False;
662 
            for(Integer ii=0; ii<4; ii=ii+1)
663 
               begin
664 
                  Bit#(2) offsetplusii = offset+fromInteger(ii);
665 
                  if(offset <= 3-fromInteger(ii) && !((blockT==IP4x8||blockT==IP4x4)&&(offset[1]==0||(xfracc==0&&offset!=3))) && !(xfracc==0&&offset==0))
666 
                     tempWork8[ii] = work1Vector8[offsetplusii];
667 
                  else
668 
                     tempWork8[ii] = readdata[offsetplusii];
669 
                  work1Vector8Next[ii] = readdata[ii];
670 
               end
671 
            tempWork8[4] = readdata[offset];
672 
            if((blockT==IP16x8 || blockT==IP16x16) && work1HorNum==(xfracc==0&&offset==0 ? 1 : 2))
673 
               begin
674 
                  for(Integer ii=0; ii<5; ii=ii+1)
675 
                     begin
676 
                        tempPrev8[ii] = work1Vector8[ii+9];
677 
                        work1Vector8Next[ii+9] = tempWork8[ii];
678 
                     end
679 
               end
680 
            else
681 
               begin
682 
                  for(Integer ii=0; ii<5; ii=ii+1)
683 
                     tempPrev8[ii] = work1Vector8[ii+4];
684 
                  if(work1HorNum==(xfracc==0&&offset==0 ? 0 : 1) || ((blockT==IP4x8||blockT==IP4x4)&&(offset[1]==0||(xfracc==0&&offset!=3))))
685 
                     begin
686 
                        for(Integer ii=0; ii<5; ii=ii+1)
687 
                           work1Vector8Next[ii+4] = tempWork8[ii];
688 
                     end
689 
               end
690 
            if(yfracc==0)
691 
               begin
692 
                  for(Integer ii=0; ii<5; ii=ii+1)
693 
                     tempPrev8[ii] = tempWork8[ii];
694 
               end
695 
            for(Integer ii=0; ii<4; ii=ii+1)
696 
               begin
697 
                  Bit#(14) tempVal = zeroExtend((8-xfracc))*zeroExtend((8-yfracc))*zeroExtend(tempPrev8[ii]);
698 
                  tempVal = tempVal + zeroExtend(xfracc)*zeroExtend((8-yfracc))*zeroExtend(tempPrev8[ii+1]);
699 
                  tempVal = tempVal + zeroExtend((8-xfracc))*zeroExtend(yfracc)*zeroExtend(tempWork8[ii]);
700 
                  tempVal = tempVal + zeroExtend(xfracc)*zeroExtend(yfracc)*zeroExtend(tempWork8[ii+1]);
701 
                  tempResult8[ii] = truncate((tempVal+32)>>6);
702 
               end
703 
            if(work1VerNum > 0 || yfracc==0)
704 
               begin
705 
                  if(blockT==IP4x8 || blockT==IP4x4)
706 
                     begin
707 
                        Bit#(5) tempIndex = 10 + zeroExtend(work1VerNum<<1);
708 
                        work1Vector8Next[tempIndex] = tempResult8[0];
709 
                        work1Vector8Next[tempIndex+1] = tempResult8[1];
710 
                        tempResult8[2] = tempResult8[0];
711 
                        tempResult8[3] = tempResult8[1];
712 
                        tempResult8[0] = work1Vector8[tempIndex];
713 
                        tempResult8[1] = work1Vector8[tempIndex+1];
714 
                        if((work1HorNum>0 || offset[1]==0) && work1SubMbPart[0]==1)
715 
                           resultReadyFlag = True;
716 
                     end
717 
                  else
718 
                     begin
719 
                        if(work1HorNum>0 || (xfracc==0 && offset==0))
720 
                           resultReadyFlag = True;
721 
                     end
722 
               end
723 
            if(resultReadyFlag)
724 
               begin
725 
                  Bit#(1) horAddr = ((blockT==IP4x8 || blockT==IP4x4) ? 0 : truncate(((xfracc==0 && offset==0) ? work1HorNum : work1HorNum-1)));
726 
                  Bit#(3) verAddr = truncate((yfracc==0 ? work1VerNum : work1VerNum-1));
727 
                  horAddr = horAddr + ((blockT==IP16x8||blockT==IP16x16) ? 0 : work1MbPart[0]);
728 
                  verAddr = verAddr + ((blockT==IP8x16||blockT==IP16x16) ? 0 : ((blockT==IP16x8) ? {work1MbPart[0],2'b00} : {work1MbPart[1],2'b00}));
729 
                  verAddr = verAddr + ((blockT==IP8x4&&work1SubMbPart==1)||(blockT==IP4x4&&work1SubMbPart[1]==1) ? 2 : 0);
730 
                  storeFile.upd({workFileFlag,1'b0,verAddr,horAddr},tempResult8);
731 
               end
732 
            Bit#(2) workHorNumMax = (blockT==IP4x8||blockT==IP4x4 ? (offset[1]==0||(xfracc==0&&offset!=3) ? 0 : 1) : ((blockT==IP16x16||blockT==IP16x8 ? 1 : 0) + (xfracc==0&&offset==0 ? 0 : 1)));
733 
            Bit#(4) workVerNumMax = (blockT==IP16x16||blockT==IP8x16 ? 7 : (blockT==IP16x8||blockT==IP8x8||blockT==IP4x8 ? 3 : 1)) + (yfracc==0 ? 0 : 1);
734 
            if(work1HorNum < workHorNumMax)
735 
               work1HorNum <= work1HorNum+1;
736 
            else
737 
               begin
738 
                  work1HorNum <= 0;
739 
                  if(work1VerNum < workVerNumMax)
740 
                     work1VerNum <= work1VerNum+1;
741 
                  else
742 
                     begin
743 
                        Bool allDone = False;
744 
                        work1VerNum <= 0;
745 
                        if(((blockT==IP4x8 || blockT==IP8x4) && work1SubMbPart==0) || (blockT==IP4x4 && work1SubMbPart<3))
746 
                           work1SubMbPart <= work1SubMbPart+1;
747 
                        else
748 
                           begin
749 
                              work1SubMbPart <= 0;
750 
                              if(((blockT==IP16x8 || blockT==IP8x16) && work1MbPart==0) || (!(blockT==IP16x8 || blockT==IP8x16 || blockT==IP16x16) && work1MbPart<3))
751 
                                 work1MbPart <= work1MbPart+1;
752 
                              else
753 
                                 begin
754 
                                    work1MbPart <= 0;
755 
                                    work1Done <= True;
756 
                                    allDone = True;
757 
                                 end
758 
                           end
759 
                        if(!allDone)
760 
                           reqfifoWork1.deq();
761 
                     end
762 
               end
763 
         end
764 
      work1Vector8 <= work1Vector8Next;
765 
      $display( "PARDEBLOCK Trace interpolator: work1Chroma %h %h %h %h %h", xfracc, yfracc, work1HorNum, work1VerNum, offset);
766 
   endrule
767 
 
768 
 
769 
   rule work2Chroma ( reqregWork2 matches tagged Valid .vdata &&& vdata matches tagged IPWChroma .reqdata &&& !work2Done &&& !work8x8Done );
770 
      Vector#(16,Bit#(1)) resultReadyNext = resultReady;
771 
      resultFile.upd({work2VerNum[1],work2HorNum,work2VerNum[0]},storeFile.sub({(1-workFileFlag),1'b0,work2VerNum[1],work2HorNum,work2VerNum[0]}));
772 
      resultReadyNext[{work2VerNum[1],work2HorNum,work2VerNum[0]}] = 1;
773 
      work2HorNum <= work2HorNum+1;
774 
      if(work2HorNum == 3)
775 
         begin
776 
            if(work2VerNum == 3)
777 
               begin
778 
                  work2VerNum <= 0;
779 
                  work2Done <= True;
780 
                  work8x8Done <= True;
781 
               end
782 
            else
783 
               work2VerNum <= work2VerNum+1;
784 
         end
785 
      resultReady <= resultReadyNext;
786 
      $display( "PARDEBLOCK Trace interpolator: work2Chroma %h %h", work2HorNum, work2VerNum);
787 
   endrule
788 
 
789 
 
790 
  rule outputing( !outDone && resultReady[{outBlockNum[1],outPixelNum,outBlockNum[0]}]==1 );
791 
      outfifo.enq(resultFile.sub({outBlockNum[1],outPixelNum,outBlockNum[0]}));
792 
      outPixelNum <= outPixelNum+1;
793 
      if(outPixelNum == 3)
794 
         begin
795 
            outBlockNum <= outBlockNum+1;
796 
            if(outBlockNum == 3)
797 
               outDone <= True;
798 
         end
799 
      $display( "Trace interpolator: outputing %h %h", outBlockNum, outPixelNum);
800 
   endrule
801 
 
802 
 
803 
   rule switching( work1Done && (work2Done || reqregWork2==Invalid) && !work8x8Done);
804 
      work1Done <= False;
805 
      work2Done <= False;
806 
      reqregWork2 <= (tagged Valid reqfifoWork1.first());
807 
      workFileFlag <= 1-workFileFlag;
808 
      reqfifoWork1.deq();
809 
      $display( "Trace interpolator: switching %h %h", outBlockNum, outPixelNum);
810 
   endrule
811 
 
812 
 
813 
   rule switching8x8( work1Done && (work2Done || reqregWork2==Invalid) && work8x8Done && outDone);
814 
      outDone <= False;
815 
      work8x8Done <= False;
816 
      resultReady <= replicate(0);
817 
      work1Done <= False;
818 
      work2Done <= False;
819 
      reqregWork2 <= (tagged Valid reqfifoWork1.first());
820 
      workFileFlag <= 1-workFileFlag;
821 
      reqfifoWork1.deq();
822 
      $display( "Trace interpolator: switching8x8 %h %h", outBlockNum, outPixelNum);
823 
   endrule
824 
 
825 
 
826 
 
827 
   method Action   setPicWidth( Bit#(PicWidthSz) newPicWidth );
828 
      picWidth <= newPicWidth;
829 
   endmethod
830 
 
831 
   method Action   setPicHeight( Bit#(PicHeightSz) newPicHeight );
832 
      picHeight <= newPicHeight;
833 
   endmethod
834 
 
835 
   method Action request( InterpolatorIT inputdata );
836 
      reqfifoLoad.enq(inputdata);
837 
      if(inputdata matches tagged IPLuma .indata)
838 
         reqfifoWork1.enq(IPWLuma {xFracL:indata.mvhor[1:0],yFracL:indata.mvver[1:0],offset:indata.mvhor[3:2],bt:indata.bt});
839 
      else if(inputdata matches tagged IPChroma .indata)
840 
         reqfifoWork1.enq(IPWChroma {xFracC:indata.mvhor[2:0],yFracC:indata.mvver[2:0],offset:indata.mvhor[4:3]+{indata.hor[0],1'b0},bt:indata.bt});
841 
   endmethod
842 
 
843 
   method Vector#(4,Bit#(8)) first();
844 
      return outfifo.first();
845 
   endmethod
846 
 
847 
   method Action deq();
848 
      outfifo.deq();
849 
   endmethod
850 
 
851 
   method Action endOfFrame();
852 
      endOfFrameFlag <= True;
853 
   endmethod
854 
 
855 
   interface Client mem_client;
856 
      interface Get request  = fifoToGet(memReqQ);
857 
      interface Put response = fifoToPut(memRespQ);
858 
   endinterface
859 
 
860 
 
861 
endmodule
862 
 
863 
 
864 
endpackage

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