verilog code 3 errors

[jameela]

i have few questions about the code given below

1) on simulating this code s21 gives 32'b 10101010101010101010101010101010 when ins==0 and gives 32'b 01010101010101010101010101010101 when ins==1

however it should be vice versa as given in code ...why is it so??

2) s21 then goes to inp which is a serial to parallel shiftreg but only a few bits are shifted properly into it at every clock edge and after that the waveform flattens out whereas it should show shifting of all bits properly...how could it be corrected?

3) when i implemented this code it gave following errors:

Total Number of 4 input LUTs: 7 out of 9,312 1%
Number used as logic: 6
Number used as Shift registers: 1
Number of bonded IOBs: 2,084 out of 232 898% (OVERMAPPED) IOB Flip Flops: 987
Number of bonded Out/Bidir IOBs: 2,080 out of 176 1181% (OVERMAPPED) Number of bonded Input IBUFs: 4 out of 56 12%
Number of GCLKs: 2 out of 24 8%




module inter1(s21,out1,ins1,inp,inclk,clr,outclk);
input inclk,clr,ins1,outclk;
output inp,out1,s21;

reg [31:0]s2,s1,s21;


reg ins;

reg [1023:0]out,out1;
reg [1024:1] inp;


parameter a=1 ,b=3*a ,c=b-1;
initial
s1<=32'b 10101010101010101010101010101010;

always@(posedge outclk)
begin
if (ins1==1)

begin
s2<=s1;
s21<=s2;
end

else

begin
s2<=~s1;
s21<=s2;
end
end

always@(posedge inclk )
begin
if(clr) inp<=0;
else
begin
inp[1024:2]<=inp[1023:1];
inp[1]<=s21;
end
#32;

end

always@(posedge outclk or posedge clr)
begin
if(clr)out<=0;
else
begin
out[0]<=inp[576];
out[1]<=inp[96];
out[2]<=inp[640];
out[3]<=inp[160];
out[4]<=inp[704];
out[5]<=inp[224];
out[6]<=inp[768];
out[7]<=inp[288];
out[8]<=inp[832];
out[9]<=inp[352];
out[10]<=inp[896];
out[11]<=inp[416];
out[12]<=inp[960];
out[13]<=inp[480];
out[14]<=inp[1024];
out[15]<=inp[544];
out[16]<=inp[64];
out[17]<=inp[608];
out[18]<=inp[128];
out[19]<=inp[672];
out[20]<=inp[192];
out[21]<=inp[736];
out[22]<=inp[256];
out[23]<=inp[800];
out[24]<=inp[320];
out[25]<=inp[864];
out[26]<=inp[384];
out[27]<=inp[928];
out[28]<=inp[448];
out[29]<=inp[992];
out[30]<=inp[512];
out[31]<=inp[32];
out[32]<=inp[482];
out[33]<=inp[2];
out[34]<=inp[546];
out[35]<=inp[66];
out[36]<=inp[610];
out[37]<=inp[130];
out[38]<=inp[674];
out[39]<=inp[194];
out[40]<=inp[738];
out[41]<=inp[258];
out[42]<=inp[802];
out[43]<=inp[322];
out[44]<=inp[866];
out[45]<=inp[386];
out[46]<=inp[930];
out[47]<=inp[450];
out[48]<=inp[994];
out[49]<=inp[514];
out[50]<=inp[34];
out[51]<=inp[578];
out[52]<=inp[98];
out[53]<=inp[642];
out[54]<=inp[162];
out[55]<=inp[706];
out[56]<=inp[226];
out[57]<=inp[770];
out[58]<=inp[290];
out[59]<=inp[834];
out[60]<=inp[354];
out[61]<=inp[898];
out[62]<=inp[418];
out[63]<=inp[962];
out[64]<=inp[638];
out[65]<=inp[158];
out[66]<=inp[702];
out[67]<=inp[222];
out[68]<=inp[766];
out[69]<=inp[286];
out[70]<=inp[830];
out[71]<=inp[350];
out[72]<=inp[894];
out[73]<=inp[414];
out[74]<=inp[958];
out[75]<=inp[478];
out[76]<=inp[1022];
out[77]<=inp[542];
out[78]<=inp[62];
out[79]<=inp[606];
out[80]<=inp[126];
out[81]<=inp[670];
out[82]<=inp[190];
out[83]<=inp[734];
out[84]<=inp[254];
out[85]<=inp[798];
out[86]<=inp[318];
out[87]<=inp[862];
out[88]<=inp[382];
out[89]<=inp[926];
out[90]<=inp[446];
out[91]<=inp[990];
out[92]<=inp[510];
out[93]<=inp[30];
out[94]<=inp[574];
out[95]<=inp[94];
out[96]<=inp[420];
out[97]<=inp[964];
out[98]<=inp[484];
out[99]<=inp[4];
out[100]<=inp[548];
out[101]<=inp[68];
out[102]<=inp[612];
out[103]<=inp[132];
out[104]<=inp[676];
out[105]<=inp[196];
out[106]<=inp[740];
out[107]<=inp[260];
out[108]<=inp[804];
out[109]<=inp[324];
out[110]<=inp[868];
out[111]<=inp[388];
out[112]<=inp[932];
out[113]<=inp[452];
out[114]<=inp[996];
out[115]<=inp[516];
out[116]<=inp[36];
out[117]<=inp[580];
out[118]<=inp[100];
out[119]<=inp[644];
out[120]<=inp[164];
out[121]<=inp[708];
out[122]<=inp[228];
out[123]<=inp[772];
out[124]<=inp[292];
out[125]<=inp[836];
out[126]<=inp[356];
out[127]<=inp[900];
out[128]<=inp[700];
out[129]<=inp[220];
out[130]<=inp[764];
out[131]<=inp[284];
out[132]<=inp[828];
out[133]<=inp[348];
out[134]<=inp[892];
out[135]<=inp[412];
out[136]<=inp[956];
out[137]<=inp[476];
out[138]<=inp[1020];
out[139]<=inp[540];
out[140]<=inp[60];
out[141]<=inp[604];
out[142]<=inp[124];
out[143]<=inp[668];
out[144]<=inp[188];
out[145]<=inp[732];
out[146]<=inp[252];
out[147]<=inp[796];
out[148]<=inp[316];
out[149]<=inp[860];
out[150]<=inp[380];
out[151]<=inp[924];
out[152]<=inp[444];
out[153]<=inp[988];
out[154]<=inp[508];
out[155]<=inp[28];
out[156]<=inp[572];
out[157]<=inp[92];
out[158]<=inp[636];
out[159]<=inp[156];
out[160]<=inp[358];
out[161]<=inp[902];
out[162]<=inp[422];
out[163]<=inp[966];
out[164]<=inp[486];
out[165]<=inp[6];
out[166]<=inp[550];
out[167]<=inp[70];
out[168]<=inp[614];
out[169]<=inp[134];
out[170]<=inp[678];
out[171]<=inp[198];
out[172]<=inp[742];
out[173]<=inp[262];
out[174]<=inp[806];
out[175]<=inp[326];
out[176]<=inp[870];
out[177]<=inp[390];
out[178]<=inp[934];
out[179]<=inp[454];
out[180]<=inp[998];
out[181]<=inp[518];
out[182]<=inp[38];
out[183]<=inp[582];
out[184]<=inp[102];
out[185]<=inp[646];
out[186]<=inp[166];
out[187]<=inp[710];
out[188]<=inp[230];
out[189]<=inp[774];
out[190]<=inp[294];
out[191]<=inp[838];
out[192]<=inp[762];
out[193]<=inp[282];
out[194]<=inp[826];
out[195]<=inp[346];
out[196]<=inp[890];
out[197]<=inp[410];
out[198]<=inp[954];
out[199]<=inp[474];
out[200]<=inp[1018];
out[201]<=inp[538];
out[202]<=inp[58];
out[203]<=inp[602];
out[204]<=inp[122];
out[205]<=inp[666];
out[206]<=inp[186];
out[207]<=inp[730];
out[208]<=inp[250];
out[209]<=inp[794];
out[210]<=inp[314];
out[211]<=inp[858];
out[212]<=inp[378];
out[213]<=inp[922];
out[214]<=inp[442];
out[215]<=inp[986];
out[216]<=inp[506];
out[217]<=inp[26];
out[218]<=inp[570];
out[219]<=inp[90];
out[220]<=inp[634];
out[221]<=inp[154];
out[222]<=inp[698];
out[223]<=inp[218];
out[224]<=inp[296];
out[225]<=inp[840];
out[226]<=inp[360];
out[227]<=inp[904];
out[228]<=inp[424];
out[229]<=inp[968];
out[230]<=inp[488];
out[231]<=inp[8];
out[232]<=inp[552];
out[233]<=inp[72];
out[234]<=inp[616];
out[235]<=inp[136];
out[236]<=inp[680];
out[237]<=inp[200];
out[238]<=inp[744];
out[239]<=inp[264];
out[240]<=inp[808];
out[241]<=inp[328];
out[242]<=inp[872];
out[243]<=inp[392];
out[244]<=inp[936];
out[245]<=inp[456];
out[246]<=inp[1000];
out[247]<=inp[520];
out[248]<=inp[40];
out[249]<=inp[584];
out[250]<=inp[104];
out[251]<=inp[648];
out[252]<=inp[168];
out[253]<=inp[712];
out[254]<=inp[232];
out[255]<=inp[776];
out[256]<=inp[824];
out[257]<=inp[344];
out[258]<=inp[888];
out[259]<=inp[408];
out[260]<=inp[952];
out[261]<=inp[472];
out[262]<=inp[1016];
out[263]<=inp[536];
out[264]<=inp[56];
out[265]<=inp[600];
out[266]<=inp[120];
out[267]<=inp[664];
out[268]<=inp[184];
out[269]<=inp[728];
out[270]<=inp[248];
out[271]<=inp[792];
out[272]<=inp[312];
out[273]<=inp[856];
out[274]<=inp[376];
out[275]<=inp[920];
out[276]<=inp[440];
out[277]<=inp[984];
out[278]<=inp[504];
out[279]<=inp[24];
out[280]<=inp[568];
out[281]<=inp[88];
out[282]<=inp[632];
out[283]<=inp[152];
out[284]<=inp[696];
out[285]<=inp[216];
out[286]<=inp[760];
out[287]<=inp[280];
out[288]<=inp[233];
out[289]<=inp[778];
out[290]<=inp[298];
out[291]<=inp[842];
out[292]<=inp[362];
out[293]<=inp[906];
out[294]<=inp[426];
out[295]<=inp[970];
out[296]<=inp[490];
out[297]<=inp[10];
out[298]<=inp[554];
out[299]<=inp[74];
out[300]<=inp[618];
out[301]<=inp[138];
out[302]<=inp[682];
out[303]<=inp[202];
out[304]<=inp[746];
out[305]<=inp[266];
out[306]<=inp[810];
out[307]<=inp[330];
out[308]<=inp[874];
out[309]<=inp[394];
out[310]<=inp[938];
out[311]<=inp[458];
out[312]<=inp[1002];
out[313]<=inp[522];
out[314]<=inp[42];
out[315]<=inp[586];
out[316]<=inp[106];
out[317]<=inp[650];
out[318]<=inp[170];
out[319]<=inp[714];
out[320]<=inp[886];
out[321]<=inp[406];
out[322]<=inp[960];
out[323]<=inp[470];
out[324]<=inp[1014];
out[325]<=inp[534];
out[326]<=inp[54];
out[327]<=inp[598];
out[328]<=inp[118];
out[329]<=inp[662];
out[330]<=inp[182];
out[331]<=inp[726];
out[332]<=inp[246];
out[333]<=inp[790];
out[334]<=inp[310];
out[335]<=inp[854];
out[336]<=inp[374];
out[337]<=inp[918];
out[338]<=inp[438];
out[339]<=inp[982];
out[340]<=inp[502];
out[341]<=inp[22];
out[342]<=inp[566];
out[343]<=inp[86];
out[344]<=inp[630];
out[345]<=inp[150];
out[346]<=inp[694];
out[347]<=inp[214];
out[348]<=inp[758];
out[349]<=inp[278];
out[350]<=inp[822];
out[351]<=inp[342];
out[352]<=inp[172];
out[353]<=inp[716];
out[354]<=inp[236];
out[355]<=inp[780];
out[356]<=inp[300];
out[357]<=inp[844];
out[358]<=inp[364];
out[359]<=inp[908];
out[360]<=inp[428];
out[361]<=inp[972];
out[362]<=inp[492];
out[363]<=inp[12];
out[364]<=inp[556];
out[365]<=inp[76];
out[366]<=inp[620];
out[367]<=inp[140];
out[368]<=inp[684];
out[369]<=inp[204];
out[370]<=inp[748];
out[371]<=inp[268];
out[372]<=inp[812];
out[373]<=inp[332];
out[374]<=inp[876];
out[375]<=inp[396];
out[376]<=inp[940];
out[377]<=inp[460];
out[378]<=inp[1004];
out[379]<=inp[524];
out[380]<=inp[44];
out[381]<=inp[588];
out[382]<=inp[108];
out[383]<=inp[652];
out[384]<=inp[948];
out[385]<=inp[468];
out[386]<=inp[1012];
out[387]<=inp[532];
out[388]<=inp[52];
out[389]<=inp[596];
out[390]<=inp[116];
out[391]<=inp[660];
out[392]<=inp[180];
out[393]<=inp[724];
out[394]<=inp[244];
out[395]<=inp[788];
out[396]<=inp[308];
out[397]<=inp[852];
out[398]<=inp[372];
out[399]<=inp[916];
out[400]<=inp[436];
out[401]<=inp[980];
out[402]<=inp[500];
out[403]<=inp[20];
out[404]<=inp[564];
out[405]<=inp[84];
out[406]<=inp[628];
out[407]<=inp[148];
out[408]<=inp[692];
out[409]<=inp[212];
out[410]<=inp[756];
out[411]<=inp[276];
out[412]<=inp[820];
out[413]<=inp[340];
out[414]<=inp[884];
out[415]<=inp[404];
out[416]<=inp[110];
out[417]<=inp[654];
out[418]<=inp[174];
out[419]<=inp[718];
out[420]<=inp[238];
out[421]<=inp[782];
out[422]<=inp[302];
out[423]<=inp[846];
out[424]<=inp[366];
out[425]<=inp[910];
out[426]<=inp[430];
out[427]<=inp[974];
out[428]<=inp[494];
out[429]<=inp[14];
out[430]<=inp[558];
out[431]<=inp[78];
out[432]<=inp[622];
out[433]<=inp[142];
out[434]<=inp[686];
out[435]<=inp[206];
out[436]<=inp[750];
out[437]<=inp[270];
out[438]<=inp[814];
out[439]<=inp[334];
out[440]<=inp[878];
out[441]<=inp[398];
out[442]<=inp[942];
out[443]<=inp[462];
out[444]<=inp[1006];
out[445]<=inp[526];
out[446]<=inp[46];
out[447]<=inp[506];
out[448]<=inp[1010];
out[449]<=inp[530];
out[450]<=inp[50];
out[451]<=inp[594];
out[452]<=inp[114];
out[453]<=inp[658];
out[454]<=inp[178];
out[455]<=inp[722];
out[456]<=inp[242];
out[457]<=inp[786];
out[458]<=inp[306];
out[459]<=inp[850];
out[460]<=inp[370];
out[461]<=inp[914];
out[462]<=inp[434];
out[463]<=inp[978];
out[464]<=inp[498];
out[465]<=inp[18];
out[466]<=inp[562];
out[467]<=inp[82];
out[468]<=inp[626];
out[469]<=inp[146];
out[470]<=inp[690];
out[471]<=inp[210];
out[472]<=inp[754];
out[473]<=inp[274];
out[474]<=inp[818];
out[475]<=inp[338];
out[476]<=inp[882];
out[477]<=inp[402];
out[478]<=inp[946];
out[479]<=inp[466];
out[480]<=inp[48];
out[481]<=inp[592];
out[482]<=inp[112];
out[483]<=inp[656];
out[484]<=inp[176];
out[485]<=inp[720];
out[486]<=inp[240];
out[487]<=inp[784];
out[488]<=inp[304];
out[489]<=inp[848];
out[490]<=inp[368];
out[491]<=inp[912];
out[492]<=inp[432];
out[493]<=inp[976];
out[494]<=inp[496];
out[495]<=inp[16];
out[496]<=inp[560];
out[497]<=inp[80];
out[498]<=inp[624];
out[499]<=inp[144];
out[500]<=inp[688];
out[501]<=inp[208];
out[502]<=inp[752];
out[503]<=inp[272];
out[504]<=inp[816];
out[505]<=inp[336];
out[506]<=inp[880];
out[507]<=inp[400];
out[508]<=inp[944];
out[509]<=inp[464];
out[510]<=inp[1008];
out[511]<=inp[528];
out[512]<=inp[17];
out[513]<=inp[561];
out[514]<=inp[81];
out[515]<=inp[625];
out[516]<=inp[145];
out[517]<=inp[689];
out[518]<=inp[209];
out[519]<=inp[753];
out[520]<=inp[273];
out[521]<=inp[817];
out[522]<=inp[337];
out[523]<=inp[881];
out[524]<=inp[401];
out[525]<=inp[945];
out[526]<=inp[465];
out[527]<=inp[1009];
out[528]<=inp[529];
out[529]<=inp[49];
out[530]<=inp[593];
out[531]<=inp[113];
out[532]<=inp[657];
out[533]<=inp[177];
out[534]<=inp[721];
out[535]<=inp[241];
out[536]<=inp[785];
out[537]<=inp[305];
out[538]<=inp[849];
out[539]<=inp[369];
out[540]<=inp[913];
out[541]<=inp[433];
out[542]<=inp[977];
out[543]<=inp[497];
out[544]<=inp[79];
out[545]<=inp[623];
out[546]<=inp[143];
out[547]<=inp[687];
out[548]<=inp[207];
out[549]<=inp[751];
out[550]<=inp[271];
out[551]<=inp[815];
out[552]<=inp[335];
out[553]<=inp[879];
out[554]<=inp[399];
out[555]<=inp[843];
out[556]<=inp[463];
out[557]<=inp[1007];
out[558]<=inp[527];
out[559]<=inp[47];
out[560]<=inp[591];
out[561]<=inp[111];
out[562]<=inp[655];
out[563]<=inp[175];
out[564]<=inp[719];
out[565]<=inp[239];
out[566]<=inp[783];
out[567]<=inp[303];
out[568]<=inp[847];
out[569]<=inp[367];
out[570]<=inp[911];
out[571]<=inp[431];
out[572]<=inp[975];
out[573]<=inp[495];
out[574]<=inp[15];
out[575]<=inp[559];
out[576]<=inp[979];
out[577]<=inp[499];
out[578]<=inp[119];
out[579]<=inp[563];
out[580]<=inp[83];
out[581]<=inp[627];
out[582]<=inp[147];
out[583]<=inp[691];
out[584]<=inp[211];
out[585]<=inp[755];
out[586]<=inp[275];
out[587]<=inp[275];
out[588]<=inp[817];
out[589]<=inp[339];
out[590]<=inp[833];
out[591]<=inp[403];
out[592]<=inp[947];
out[593]<=inp[467];
out[594]<=inp[1011];
out[595]<=inp[531];
out[596]<=inp[51];
out[597]<=inp[595];
out[598]<=inp[115];
out[599]<=inp[659];
out[600]<=inp[179];
out[601]<=inp[723];
out[602]<=inp[243];
out[603]<=inp[787];
out[604]<=inp[307];
out[605]<=inp[851];
out[606]<=inp[371];
out[607]<=inp[915];
out[608]<=inp[435];
out[609]<=inp[141];
out[610]<=inp[685];
out[611]<=inp[205];
out[612]<=inp[749];
out[613]<=inp[269];
out[614]<=inp[813];
out[615]<=inp[333];
out[616]<=inp[877];
out[617]<=inp[397];
out[618]<=inp[941];
out[619]<=inp[461];
out[620]<=inp[1005];
out[621]<=inp[525];
out[622]<=inp[45];
out[623]<=inp[589];
out[624]<=inp[109];
out[625]<=inp[653];
out[626]<=inp[173];
out[627]<=inp[717];
out[628]<=inp[237];
out[629]<=inp[781];
out[630]<=inp[301];
out[631]<=inp[845];
out[632]<=inp[909];
out[633]<=inp[429];
out[634]<=inp[493];
out[635]<=inp[13];
out[636]<=inp[557];
out[637]<=inp[77];
out[638]<=inp[621];
out[639]<=inp[917];
out[640]<=inp[437];
out[641]<=inp[981];
out[642]<=inp[501];
out[643]<=inp[21];
out[644]<=inp[565];
out[645]<=inp[85];
out[646]<=inp[629];
out[647]<=inp[149];
out[648]<=inp[693];
out[649]<=inp[213];
out[650]<=inp[757];
out[651]<=inp[277];
out[652]<=inp[821];
out[653]<=inp[341];
out[654]<=inp[885];
out[655]<=inp[405];
out[656]<=inp[949];
out[657]<=inp[469];
out[658]<=inp[1013];
out[659]<=inp[533];
out[660]<=inp[53];
out[661]<=inp[597];
out[662]<=inp[117];
out[663]<=inp[661];
out[664]<=inp[181];
out[665]<=inp[725];
out[666]<=inp[245];
out[667]<=inp[789];
out[668]<=inp[309];
out[669]<=inp[853];
out[670]<=inp[373];
out[671]<=inp[203];
out[672]<=inp[747];
out[673]<=inp[267];
out[674]<=inp[811];
out[675]<=inp[331];
out[676]<=inp[875];
out[677]<=inp[395];
out[678]<=inp[939];
out[679]<=inp[459];
out[680]<=inp[1003];
out[681]<=inp[523];
out[682]<=inp[43];
out[683]<=inp[587];
out[684]<=inp[107];
out[685]<=inp[65];
out[686]<=inp[171];
out[687]<=inp[715];
out[688]<=inp[235];
out[689]<=inp[779];
out[690]<=inp[299];
out[691]<=inp[843];
out[692]<=inp[363];
out[693]<=inp[907];
out[694]<=inp[427];
out[695]<=inp[971];
out[696]<=inp[491];
out[697]<=inp[11];
out[698]<=inp[555];
out[699]<=inp[75];
out[700]<=inp[619];
out[701]<=inp[139];
out[702]<=inp[683];
out[703]<=inp[855];
out[704]<=inp[375];
out[705]<=inp[919];
out[706]<=inp[439];
out[707]<=inp[483];
out[708]<=inp[503];
out[709]<=inp[23];
out[710]<=inp[567];
out[711]<=inp[87];
out[712]<=inp[631];
out[713]<=inp[151];
out[714]<=inp[695];
out[715]<=inp[215];
out[716]<=inp[759];
out[717]<=inp[279];
out[718]<=inp[823];
out[719]<=inp[343];
out[720]<=inp[887];
out[721]<=inp[407];
out[722]<=inp[915];
out[723]<=inp[471];
out[724]<=inp[1015];
out[725]<=inp[535];
out[726]<=inp[55];
out[727]<=inp[599];
out[728]<=inp[199];
out[729]<=inp[663];
out[730]<=inp[183];
out[731]<=inp[727];
out[732]<=inp[247];
out[733]<=inp[791];
out[734]<=inp[311];
out[735]<=inp[265];
out[736]<=inp[809];
out[737]<=inp[329];
out[738]<=inp[873];
out[739]<=inp[393];
out[740]<=inp[937];
out[741]<=inp[475];
out[742]<=inp[1001];
out[743]<=inp[521];
out[744]<=inp[41];
out[745]<=inp[585];
out[746]<=inp[105];
out[747]<=inp[644];
out[748]<=inp[169];
out[749]<=inp[713];
out[750]<=inp[233];
out[751]<=inp[777];
out[752]<=inp[297];
out[753]<=inp[841];
out[754]<=inp[361];
out[755]<=inp[905];
out[756]<=inp[425];
out[757]<=inp[969];
out[758]<=inp[489];
out[759]<=inp[9];
out[760]<=inp[553];
out[761]<=inp[73];
out[762]<=inp[617];
out[763]<=inp[137];
out[764]<=inp[681];
out[765]<=inp[201];
out[766]<=inp[745];
out[767]<=inp[793];
out[768]<=inp[313];
out[769]<=inp[857];
out[770]<=inp[377];
out[771]<=inp[921];
out[772]<=inp[441];
out[773]<=inp[985];
out[774]<=inp[505];
out[775]<=inp[25];
out[776]<=inp[569];
out[777]<=inp[89];
out[778]<=inp[633];
out[779]<=inp[153];
out[780]<=inp[697];
out[781]<=inp[217];
out[782]<=inp[761];
out[783]<=inp[281];
out[784]<=inp[825];
out[785]<=inp[345];
out[786]<=inp[889];
out[787]<=inp[409];
out[788]<=inp[953];
out[789]<=inp[473];
out[790]<=inp[1017];
out[791]<=inp[537];
out[792]<=inp[57];
out[793]<=inp[601];
out[794]<=inp[121];
out[795]<=inp[665];
out[796]<=inp[185];
out[797]<=inp[729];
out[798]<=inp[249];
out[799]<=inp[327];
out[800]<=inp[871];
out[801]<=inp[391];
out[802]<=inp[935];
out[803]<=inp[455];
out[804]<=inp[999];
out[805]<=inp[519];
out[806]<=inp[39];
out[807]<=inp[583];
out[808]<=inp[103];
out[809]<=inp[647];
out[810]<=inp[167];
out[811]<=inp[711];
out[812]<=inp[231];
out[813]<=inp[775];
out[814]<=inp[295];
out[815]<=inp[839];
out[816]<=inp[359];
out[817]<=inp[903];
out[818]<=inp[423];
out[819]<=inp[967];
out[820]<=inp[487];
out[821]<=inp[7];
out[822]<=inp[551];
out[823]<=inp[71];
out[824]<=inp[615];
out[825]<=inp[135];
out[826]<=inp[679];
out[827]<=inp[199];
out[828]<=inp[743];
out[829]<=inp[263];
out[830]<=inp[807];
out[831]<=inp[731];
out[832]<=inp[251];
out[833]<=inp[796];
out[834]<=inp[5];
out[835]<=inp[315];
out[836]<=inp[859];
out[837]<=inp[379];
out[838]<=inp[923];
out[839]<=inp[443];
out[840]<=inp[987];
out[841]<=inp[507];
out[842]<=inp[27];
out[843]<=inp[571];
out[844]<=inp[91];
out[845]<=inp[635];
out[846]<=inp[165];
out[847]<=inp[699];
out[848]<=inp[219];
out[849]<=inp[763];
out[850]<=inp[283];
out[851]<=inp[827];
out[852]<=inp[347];
out[853]<=inp[891];
out[854]<=inp[411];
out[855]<=inp[955];
out[856]<=inp[475];
out[857]<=inp[1019];
out[858]<=inp[539];
out[859]<=inp[59];
out[860]<=inp[603];
out[861]<=inp[123];
out[862]<=inp[667];
out[863]<=inp[187];
out[864]<=inp[389];
out[865]<=inp[933];
out[866]<=inp[453];
out[867]<=inp[997];
out[868]<=inp[517];
out[869]<=inp[37];
out[870]<=inp[581];
out[871]<=inp[101];
out[872]<=inp[645];
out[873]<=inp[165];
out[874]<=inp[709];
out[875]<=inp[229];
out[876]<=inp[773];
out[877]<=inp[293];
out[878]<=inp[837];
out[879]<=inp[357];
out[880]<=inp[901];
out[881]<=inp[421];
out[882]<=inp[965];
out[883]<=inp[485];
out[884]<=inp[5];
out[885]<=inp[549];
out[886]<=inp[69];
out[887]<=inp[613];
out[888]<=inp[133];
out[889]<=inp[677];
out[890]<=inp[197];
out[891]<=inp[741];
out[892]<=inp[261];
out[893]<=inp[805];
out[894]<=inp[325];
out[895]<=inp[869];
out[896]<=inp[669];
out[897]<=inp[189];
out[898]<=inp[733];
out[899]<=inp[253];
out[900]<=inp[797];
out[901]<=inp[317];
out[902]<=inp[861];
out[903]<=inp[381];
out[904]<=inp[925];
out[905]<=inp[445];
out[906]<=inp[989];
out[907]<=inp[509];
out[908]<=inp[29];
out[909]<=inp[573];
out[910]<=inp[93];
out[911]<=inp[637];
out[912]<=inp[157];
out[913]<=inp[701];
out[914]<=inp[221];
out[915]<=inp[765];
out[916]<=inp[285];
out[917]<=inp[829];
out[918]<=inp[349];
out[919]<=inp[893];
out[920]<=inp[413];
out[921]<=inp[957];
out[922]<=inp[477];
out[923]<=inp[1021];
out[924]<=inp[541];
out[925]<=inp[61];
out[926]<=inp[605];
out[927]<=inp[125];
out[928]<=inp[451];
out[929]<=inp[995];
out[930]<=inp[515];
out[931]<=inp[35];
out[932]<=inp[579];
out[933]<=inp[99];
out[934]<=inp[643];
out[935]<=inp[163];
out[936]<=inp[707];
out[937]<=inp[227];
out[938]<=inp[771];
out[939]<=inp[191];
out[940]<=inp[835];
out[941]<=inp[355];
out[942]<=inp[899];
out[943]<=inp[419];
out[944]<=inp[963];
out[945]<=inp[483];
out[946]<=inp[3];
out[947]<=inp[547];
out[948]<=inp[67];
out[949]<=inp[611];
out[950]<=inp[131];
out[951]<=inp[675];
out[952]<=inp[195];
out[953]<=inp[739];
out[954]<=inp[259];
out[955]<=inp[803];
out[956]<=inp[323];
out[957]<=inp[867];
out[958]<=inp[387];
out[959]<=inp[931];
out[960]<=inp[607];
out[961]<=inp[127];
out[962]<=inp[671];
out[963]<=inp[191];
out[964]<=inp[735];
out[965]<=inp[255];
out[966]<=inp[799];
out[967]<=inp[319];
out[968]<=inp[863];
out[969]<=inp[383];
out[970]<=inp[927];
out[971]<=inp[447];
out[972]<=inp[991];
out[973]<=inp[511];
out[974]<=inp[31];
out[975]<=inp[575];
out[976]<=inp[95];
out[977]<=inp[639];
out[978]<=inp[159];
out[979]<=inp[703];
out[980]<=inp[223];
out[981]<=inp[767];
out[982]<=inp[287];
out[983]<=inp[831];
out[984]<=inp[351];
out[985]<=inp[895];
out[986]<=inp[415];
out[987]<=inp[959];
out[988]<=inp[479];
out[989]<=inp[1023];
out[990]<=inp[543];
out[991]<=inp[63];
out[992]<=inp[513];
out[993]<=inp[33];
out[994]<=inp[577];
out[995]<=inp[97];
out[996]<=inp[641];
out[997]<=inp[161];
out[998]<=inp[705];
out[999]<=inp[225];
out[1000]<=inp[769];
out[1001]<=inp[289];
out[1002]<=inp[833];
out[1003]<=inp[353];
out[1004]<=inp[397];
out[1005]<=inp[417];
out[1006]<=inp[961];
out[1007]<=inp[481];
out[1008]<=inp[1];
out[1009]<=inp[545];
out[1010]<=inp[65];
out[1011]<=inp[609];
out[1012]<=inp[129];
out[1013]<=inp[673];
out[1014]<=inp[193];
out[1015]<=inp[737];
out[1016]<=inp[257];
out[1017]<=inp[801];
out[1018]<=inp[321];
out[1019]<=inp[865];
out[1020]<=inp[385];
out[1021]<=inp[929];
out[1022]<=inp[449];
out[1023]<=inp[90];
end
end

always@ ( posedge outclk or posedge clr)
begin
#0.1;
if (clr)
out1<=0;
else
begin
{out1[1023:b]}<={out[1023-b:0]};
{out1[c:0]}<={out[1023:1023-c]};
end
end


endmodule

 

[devas]

Re: verilog code errors

Hi,

1. In my simulation (Modelsim) s21 = !s1 (0101..) when ins1 = 0 and s21 = s1 (1010...) when ins1 = 1
(Reg ins is not connected to something)

2. After a reset (clr = 1), inp shifts one bit at a time. It shifts s21[0] into inp[1].

3. You have 2084 I/O signals declared in your module inter1. This is exactly as what your implementation tool reports.
(32+1024+1+1024+1+1+1)

Devas

 

[jameela]

Re: verilog code errors

1) i used xilinx ise 9.1i simulator and it shows 01010101.... for ins1==1 and 1010101....for ins1==0 is there any difference between the two?? or could you use xilinx simulator to check whats the output?

2) in xilinx simulator at 1600 ns the waves are flattened one by one to 1's(in all waves)....is this the case with ur simulation as well??

3) i try to reduce number of I/Os but if more than 1 such same modules are to be downloaded onto 1 same chip then??

 

[devas]

Re: verilog code errors

Hi,

1. See attached snippet waveform of Modelsim.

2. Yes, when ins1=0 for a while. This is correct as you shift in the same bit value ('1') every clock signal (see previous post).

Devas