seq_srl.vhd

Xilinx Ise 官方源代码盘 第四章

-- $Header: /syn/cvs/rcs/mappers/xilinx/lib/gen_virtex/seq_srl.vhd,v 1.6.46.3 2002/04/12 00:03:55 akapoor Exp $
@ELDHs$NsR Q  k;
#QCR 3  #_08DHFoO4_4nNc3D
D;kR#CQ   38#0_oDFHkO_Mo#HM3C8N;DD
Ck#R Q  03#8F_Do_HON0sHED3NDD;
HNLssP$RHCs0Gk;
#PCRHCs0GF3OlMbFC#M03DND;


DsHLNRs$Q   ;#
kC RQ # 30D8_FOoH_n44cD3NDk;
#QCR 3  #_08DHFoOM_k#MHoCN83D
D;kR#CQ   38#0_oDFHNO_sEH03DND;H
DLssN$HRPsG0C.k;
#PCRHCs0GO.3FFlbM0CM#D3ND
;
DsHLNRs$Q   ;#
kC RQ # 30D8_FOoH_n44cD3NDk;
#QCR 3  #_08DHFoOM_k#MHoCN83D
D;kR#CQ   38#0_oDFHNO_sEH03DND;H
DLssN$HRPsG0C;#
kCHRPsG0C3lOFbCFMM30#N;DD
M
C0$H0RT1 _p1)R
H#RCRoMHCsOR5
RRRRR8N8sH_I8R0E:MRH0CCos=R:R
(;RRRRR8RN8#s_HRxC:MRH0CCos=R:R;n6
RRRR8RR_8IH0:ERR0HMCsoCRR:=UR;
RRRRRoMC_	ODRL:RFCFDN:MR=sR0k
C;RRRRR#RH_bHMk:0RRFLFDMCNRR:=0Csk;R
RRRRRHF#_kk0b0RR:LDFFCRNM:0=Rs2kC;R
Rb0Fs5R
RRRRR)7q7)RR:H#MR0D8_FOoH_OPC05FsNs88_8IH04E-RI8FMR0Fj
2;RRRRRqR7aRqRRRR:H#MR0D8_FOoH_OPC05Fs8H_I8-0E4FR8IFM0R;j2
RRRRWRR RRR:MRHR8#0_oDFH
O;RRRRRpRBi:RRRRHM#_08DHFoOR;
RRRRR)q_1RaR:MRHR8#0_oDFH
O;RRRRR_R1)R1aRH:RM0R#8F_Do;HO
RRRR7RRmRzaR:RRR0FkR8#0_oDFHPO_CFO0s_58I0H8ER-48MFI0jFR2
2;CRM81_ T1;)p
s
NO0EHCkO0ssCRC#oH0#CsRRFV1_ T1R)pH0#
$RbC#_sDNNss$#RHRsNsN5$RjFR0RI8_HE80-R42F#VR0D8_FOoH_OPC05FsNs88_x#HCR-48MFI0jFR2#;
HNoMD_RJHRM0:sR#Ds_Ns;N$
oLCH
M
RjRzRH:RV85N8#s_HRxC>2R4RMoCC0sNCR
RR4RzRV:RFHsRRRHMjFR0RI8_HE80RR-4oCCMsCN0
RRRRbRRsCFO#B#5p
i2RRRRRCRLo
HMSRRRRRHV5#sHH_MoCC8o5iBp202RE
CMSRRRRVRHR 5WR'=R4R'20MEC
RSSRHJ_MH052=R<R_5JH5M0HN258_8s#CHx-8.RF0IMF2RjR7&Rq5aqH;22
RSRRCRRMH8RVS;
RRRRCRM8H
V;SCRRMb8RsCFO#
#;S7RRm5zaH<2R=_RJH5M0HO25F_MPHCM0o5Cs)7q7);22
RRRR8CMRMoCC0sNC4Rz;R
RCRM8oCCMsCN0R;zj
R
Rz:.RR5HVNs88_x#HCRR=4o2RCsMCN
0CRRRRz:dRRsVFRHHRMRRj08FR_8IH0-ER4CRoMNCs0RC
RRRRRFbsO#C#5iBp2R
RRRRRLHCoMR
RRRRRRVRHRH5s#oHM_oC8Cp5BiR220MEC
RRRRRRRRVRHR 5WR'=R4R'20MEC
RRRRRRRR7RRm5zaH<2R=qR7aHq52R;
RRRRRRRRCRM8H
V;RRRRRRRRCRM8H
V;RRRRRMRC8sRbF#OC#R;
RCRRMo8RCsMCNR0Cz
d;RMRC8CRoMNCs0zCR.
;
CRM8sHCo#s0C#
;
NEsOHO0C0CksRN#00_HO#RsDF1VR 1T_)HpR#k
VMHO0FMMRkOl_C5DDMRR:HCM0o;CsR_H#HkMb0H,R#k_F00bkRL:RFCFDNsM2Cs0kMMRH0CCos#RHRRRRRN
PsLHNDPCRNCDkRH:RMo0CC
s;PHNsNCLDRlMk_osC#RR:HCM0o;Cs
oLCHRM
RlMk_osC#=R:R
j;RVRH5_H#HkMb002RERCM
RRRRMRRksl_CRo#:M=Rksl_CRo#+;R4
CRRMH8RVR;
R5HVHF#_kk0b002RERCM
RRRRRRRM_kls#CoRR:=M_kls#CoR4+R;R
RCRM8H
V;RNRPDRkC:5=RMRR-M_kls#Co2n/4;R
RskC0sPMRNCDk;M
C8kRMlC_OD
D;
MVkOF0HMCRslMNHH_Mos5CoMH:RMo0CCRs;HH#_M0bk,#RH_0FkbRk0:FRLFNDCMC2s0MksR0HMCsoCRRH#RRRR
sPNHDNLCNRPDRkC:MRH0CCosP;
NNsHLRDCM_kls#CoRH:RMo0CC
s;LHCoMR
RM_kls#CoRR:=jR;
RDPNk:CR=;Rj
HRRV#5H_bHMkR020MECRR
RRRRRM_kls#CoRR:=M_kls#CoR4+R;R
RCRM8H
V;RVRH5_H#Fbk0kR020MECRR
RRRRRRlMk_osC#=R:RlMk_osC#RR+4R;
R8CMR;HV
PRRNCDkRR:=5-MRRlMk_osC#s2RC4lRnR;
R0sCkRsMPkNDCC;
Ms8RCHlNMoHM_osC;V

k0MOHRFM#s0N0oHM_osC5_H#HkMb0RR:LDFFC2NMR0sCkRsMHCM0oRCsHL#
CMoH
HRRV#5H_bHMkR020MEC
RRRRsRRCs0kM;R4
CRRMH8RVR;
R0sCkRsMjC;
M#8R00NsH_Mos;Co
k
VMHO0FbMRsHCVGC_oM#5H_0FkbRk0:FRLFNDCMs2RCs0kM0R#soHMR
H#LHCoMR
RHHV5#k_F00bk2ER0CRM
RRRRR0sCkRsM"apa"R;
R8CMR;HV
sRRCs0kMpR"w;a"
8CMRCbsV_HGo;CM
F
OMN#0MM0Rk#l_sOD_C#DDRH:RMo0CC:sR=kRMlC_ODND58_8s#CHx,#RH_bHMkR0,HF#_kk0b0
2;O#FM00NMRlMk_H#	bC_so:#RR0HMCsoCRR:=sNClHMMHoC_so85N8#s_H,xCR_H#HkMb0H,R#k_F00bk2O;
F0M#NRM0M_kl#s0N0C_soRR:HCM0oRCs:#=R00NsH_Mos5CoHH#_M0bk2O;
F0M#NRM0#_sDbVsCH:GRRs#0HRMo:b=RsHCVGC_oM#5H_0Fkb2k0;#

HNoMD#RDLRR:#_08DHFoOC_POs0F58dRF0IMF2RjRR:="jjjj
";0C$bRsR#Dl_0bs_NsRN$HN#Rs$sNRR5j05FRM_kl#_sDODCD#RR+4R22F#VR0D8_FOoH_OPC05Fs8H_I8R0E-RR48MFI0jFR2
;
#MHoN0DRlNb_s$sNR#:Rs0D_lNb_s$sN;H
#oDMNRb0l_8N8sRR:#_08DHFoOC_POs0F58N8sH_I8-0E4FR8IFM0R;j2
o#HMRND0_lbF_k0Ns88R#:R0D8_FOoH_OPC05Fs8H_I8-0E4FR8IFM0R;j2
0
N0LsHkR0C\s3#DV_FV0#C\RR:#H0sM
o;
oLCH
M
z:jRRRHVHH#_M0bkRMoCC0sNCRR
RFbsO#C#5iBp2R
RLHCoMR
RRVRHRH5s#oHM_oC8Cp5BiR220MEC
RRRRHRRVWR5 RR='24'RC0EMR
RRRRRRlR0bs_Ns5N$j<2R=qR7a
q;RRRRRMRC8VRH;R
RRMRC8VRH;R
RCRM8bOsFC;##RM
C8CRoMNCs0
C;
4zjRH:RVFRM0#5H_bHMkR02oCCMsCN0RR
RRRRRRlR0bs_Ns5N$j<2R=qR7a
q;CRM8oCCMsCN0;



:z4RRHVNs88_8IH0<ER=RRcoCCMsCN0
RRRRoLCHSM
SLD#RR<=Bemh_71a_tpmQeB_ mBa)k5Ml	_#Hsb_CRo#-,R4R;c2
RRRRRRRR4z4RV:RFHsRRRHMjFR0R_58I0H8E4R-2CRoMNCs0SC
S0SN0LsHkR0C\s3#DV_FV0#C\VRFR4z44RR:DCNLD#RHRD#s_CbsVRHG&MRH0CCosl'HN5oC8H_I820ER"&R7&"RR0HMCsoC'NHloMC5k#l_00Ns_osC2RR&"RW"&MRH0CCosl'HN5oCH&2RR"" RH&RMo0CCHs'lCNo5lMk_N#0ss0_C+oRRlMk_H#	bC_soR#2&XR""RR&HCM0o'CsHolNCR5H+2R4;S
SSoLCHRM
RRRRRRRRRzRR4:44Rp1)4
n RRRRRRRRRRRRb0FsRblN5R
RRRRRRRRRRRRRRjRqRR=>D5#Lj
2,RRRRRRRRRRRRRRRRq=4R>#RDL254,R
RRRRRRRRRRRRRR.RqRR=>D5#L.
2,RRRRRRRRRRRRRRRRq=dR>#RDL25d,R
RRRRRRRRRRRRRR RBRR=>W
 ,RRRRRRRRRRRRRRRRBRpi=B>Rp
i,RRRRRRRRRRRRRRRR7>R=Rb0l_sNsNj$5225H,R
RRRRRRRRRRRRRRRRT=0>RlNb_s$sN5542HR2
RRRRRRRRR2RR;R
RRRRRRMRC8CRoMNCs0zCR4
4;RRRRRRRRzR4.:VRHR_H#Fbk0ko0RCsMCNR0C
RRRRRRRRFbsO#C#5	OD2R
RRRRRRRRRRCRLo
HMRRRRRRRRRRRRRRRRH5VRsHH#MCo_85oCB2pi2ER0CRM
RRRRRRRRRRRRRRRRRHRRVWR5 RR='24'RC0EMR
RRRRRRRRRRRRRRRRRRRRRRmR7z<aR=lR0bs_Ns5N$4
2;RRRRRRRRRRRRRRRRRRRRCRM8H
V;RRRRRRRRRRRRRRRRCRM8H
V;RRRRRRRRRRRRCRM8bOsFC;##RR
RRRRRRMRC8CRoMNCs0
C;RRRRRRRRzR4d:VRHR0MF5_H#Fbk0kR02oCCMsCN0
RSSR7RRmRza<0=RlNb_s$sN5;42
RRRRRRRR8CMRMoCC0sNC4RzdC;
Mo8RCsMCNR0Cz
4;
:z.RRHVNs88_8IH0>ERRocRCsMCN
0CRRRRLHCoMR
RRRRRRRR
RRRRRzRR.:.RRsVFRHHRMRR405FRM_kl#_sDODCD#o2RCsMCNR0C
RRRRRRRRRRRR.z.4V:RF[sRRRHMjFR0R_58I0H8E4R-2CRoMNCs0SC
S0SN0LsHkR0C\s3#DV_FV0#C\VRFR.z..RR:DCNLD#RHRw"pa&"RR0HMCsoC'NHlo8C5_8IH0RE2&7R""RR&HCM0o'CsHolNCk5Ml0_#N_s0sRCo+HR5R4-R2n*42RR&"RW"&MRH0CCosl'HN5oC[&2RR"" RH&RMo0CCHs'lCNo5lMk_N#0ss0_C+oRR4H*n&2RR""XRH&RMo0CCHs'lCNo5+[RR;42
RRRRRRRRRRRRoLCHRM
RRRRRRRRRRRRRzRR.:..Rp1)4
n RRRRRRRRRRRRRRRRb0FsRblN5R
RRRRRRRRRRRRRRjRqR'=>4
',RRRRRRRRRRRRRRRRq=4R>4R''R,
RRRRRRRRRRRRRqRR.>R=R''4,R
RRRRRRRRRRRRRRdRqRR=>',4'
RRRRRRRRRRRRRRRRRB =W>R R,
RRRRRRRRRRRRRBRRp=iR>pRBiR,
RRRRRRRRRRRRR7RRRR=>0_lbNNss$R5H-2R45,[2
RRRRRRRRRRRRRRRR=TR>lR0bs_Ns5N$H[252R
RRRRRRRRRR;R2
SSS
RRRRRRRRRRRRRRRRRRRRR
RRRRRRRRRRMRC8CRoMNCs0RCRz4..;S
SS:z6R5HVM_kl#b	H_osC#RR=jo2RCsMCNR0C
SSSSb0l_0Fk_8N8s=R<Rb0l_sNsNM$5k#l_sOD_C#DD2S;
SMSC8CRoMNCs0zCR6R;
RRRRRCRRMo8RCsMCNR0Cz;..
RRRRRRRRR
RRRRRR.Rz.:dRR5HVM_kl#b	H_osC#=R/RRj2oCCMsCN0RS
SSLD#RR<=Bemh_71a_tpmQeB_ mBa)k5Ml	_#Hsb_CRo#-,R4R;c2
RRRRRRRRRRRR.z.cV:RF[sRRRHMjFR0R_58I0H8E4R-2CRoMNCs0SC
S0SN0LsHkR0C\s3#DV_FV0#C\VRFR.z..RR:DCNLD#RHRD#s_CbsVRHG&MRH0CCosl'HN5oC8H_I820ER"&R7&"RR0HMCsoC'NHloMC5k#l_00Ns_osCRM+Rk#l_sOD_C#DD*24nR"&RW&"RR0HMCsoC'NHlo[C52RR&"R "&MRH0CCosl'HN5oCM_kl#s0N0C_soRR+M_kl#_sDODCD#n*4RM+Rk#l_	_Hbs#Co2RR&"RX"&MRH0CCosl'HN5oC[RR+4
2;RRRRRRRRRRRRLHCoMR
RRRRRRRRRRRRRR.Rz.R.:14)pnR 
RRRRRRRRRRRRRbRRFRs0l5Nb
RRRRRRRRRRRRRRRRRqj=D>R#jL52R,
RRRRRRRRRRRRRqRR4>R=RLD#5,42
RRRRRRRRRRRRRRRRRq.=D>R#.L52R,
RRRRRRRRRRRRRqRRd>R=RLD#5,d2
RRRRRRRRRRRRRRRRRB =W>R R,
RRRRRRRRRRRRRBRRp=iR>pRBiR,
RRRRRRRRRRRRR7RRRR=>0_lbNNss$k5Mls_#DC_OD2D#5,[2
SSSS=TR>lR0bs_Ns5N$M_kl#_sDODCD#RR+4[252R
RRRRRRRRRR;R2
SSS
RRRRRRRRRRRR8CMRMoCC0sNCzRR.;.c
SSS0_lbF_k0Ns88RR<=0_lbNNss$k5Mls_#DC_ODRD#+2R4;R
RRRRRRMRC8CRoMNCs0zCR.;.d
RRRRRRRRdz.RH:RV#RH_0FkbRk0oCCMsCN0RR
RRRRRRsRbF#OC#D5O	R2
RRRRRRRRRLRRCMoH
RRRRRRRRRRRRRRRRRHV5#sHH_MoCC8o5iBp202RE
CMRRRRRRRRRRRRRRRRRRRRH5VRW= RR''42ER0CRM
RRRRRRRRRRRRRRRRRRRRR7RRmRza<0=RlFb_kN0_8;8s
RRRRRRRRRRRRRRRRRRRR8CMR;HV
RRRRRRRRRRRRRRRR8CMR;HV
RRRRRRRRRRRR8CMRFbsO#C#;RR
RRRRRCRRMo8RCsMCN;0C
RRRRRRRRcz.RH:RVFRM0#5H_0Fkb2k0RMoCC0sNCS
SRRRR7amzRR<=0_lbF_k0Ns88;R
RRRRRRMRC8CRoMNCs0zCR.
c;CRM8oCCMsCN0R;z.
M
C8sRNO0EHCkO0s#CR0HN0Os_#D
;

ONsECH0Os0kCCR#D0CO_D#sRRFV1_ T1R)pHV#
k0MOHRFMM_klODCD5:MRR0HMCsoC;#RH_bHMkR0,HF#_kk0b0RR:LDFFC2NMskC0sHMRMo0CCHsR#RRRRPR
NNsHLRDCPkNDCRR:HCM0o;Cs
sPNHDNLCkRMlC_so:#RR0HMCsoC;C
Lo
HMRkRMlC_so:#R=;RM
PRRNCDkRR:=M_kls#Co/;4n
HRRVMR5RlsCRR4n/j=R2ER0CRM
RPRRNCDkRR:=PkNDCRR+4R;
R8CMR;HV
sRRCs0kMNRPD;kC
8CMRlMk_DOCDV;
k0MOHRFMo_C0C_M880CbEH5#x:CRR0HMCsoCR8;RCEb0RH:RMo0CCRs2skC0sHMRMo0CCHsR#N
PsLHNDlCRH#M_HRxC:MRH0CCos=R:R
j;LHCoMR
Rl_HM#CHxRR:=80CbER;
RRHV5x#HCRR<80CbE02RE
CMRRRRl_HM#CHxRR:=#CHx;R
RCRM8H
V;RCRs0MksRMlH_x#HCC;
Mo8RCC0_M88_CEb0;O

F0M#NRM0M_kl#_sDODCD#RR:HCM0oRCs:M=RkOl_C5DDNs88_x#HCH,R#M_Hb,k0R_H#Fbk0k;02
H
#oDMNRLD#R#:R0D8_FOoH_OPC05FsdFR8IFM0RRj2:"=Rjjjj"0;
$RbCRD#s_b0l_sNsNH$R#sRNsRN$50jRFkRMls_#DC_ODRD#+2R4RRFV#_08DHFoOC_POs0F5I8_HE80R4-RRI8FMR0Fj
2;
o#HMRND0_lbNNss$RR:#_sD0_lbNNss$#;
HNoMDlR0b__8NNss$RR:#_sD0_lbNNss$
;
Ns00H0LkC3R\#_sDF#VVCR0\:0R#soHM;L

CMoH
l
0bs_Ns5N$j<2R=qR7a
q;
:z4RRHVNs88_8IH0<ER=RRcoCCMsCN0
RRRRoLCHRM
RRRRRDRR#NL58_8sI0H8ERR-4FR8IFM0RRj2<)=Rq)77;R
RRRRRR4Rz4RR:VRFsHMRHR0jRF8R5_8IH0-ER4o2RCsMCN
0CSNSS0H0sLCk0R#\3sFD_VCV#0F\RV4Rz4:4RRLDNCHDR#)R"wRa"&MRH0CCosl'HN5oC8H_I820ER"&R7&"RR0HMCsoC'NHlojC52RR&"RW"&MRH0CCosl'HN5oCH&2RR"" RH&RMo0CCHs'lCNo58N8sH_#xRC2&XR""RR&HCM0o'CsHolNCR5H+2R4;S
SSoLCHRM
RRRRRRRRRzRR4:44Rp1)4
n RRRRRRRRRRRRb0FsRblN5R
RRRRRRRRRRRRRRjRqRR=>D5#Lj
2,RRRRRRRRRRRRRRRRq=4R>#RDL254,R
RRRRRRRRRRRRRR.RqRR=>D5#L.
2,RRRRRRRRRRRRRRRRq=dR>#RDL25d,R
RRRRRRRRRRRRRR RBRR=>W
 ,RRRRRRRRRRRRRRRRBRpi=B>Rp
i,RRRRRRRRRRRRRRRR7>R=Rb0l_sNsNj$5225H,R
RRRRRRRRRRRRRRRRT=0>RlNb_s$sN5542HR2
RRRRRRRRR2RR;R
RRRRRRMRC8CRoMNCs0zCR4
4;SmS7z<aR=lR0bs_Ns5N$4
2;CRM8oCCMsCN0R;z4
.
z:VRHR8N8sH_I8R0E>RRcoCCMsCN0
RRRRoLCHRM
RRRRRDRR#<LR=qR)757)dFR8IFM0R;j2
RRRRRRRR.z.RV:RFHsRRRHM4FR0Rk5Mls_#DC_OD2D#RMoCC0sNCRR
RRRRRRRRRzRR.:.4RsVFRH[RMRRj05FR8H_I8R0E-R42oCCMsCN0
SSSNs00H0LkC3R\#_sDF#VVCR0\FzVR.R.4:NRDLRCDH"#R)"waRH&RMo0CCHs'lCNo5I8_HE802RR&"R7"&MRH0CCosl'HN5oC5-HRR*424Rn2&WR""RR&HCM0o'CsHolNC25[R"&R &"RR0HMCsoC'NHlooC5CC0_M88_CEb058N8sH_#xRC,Hn*42&2RR""XRH&RMo0CCHs'lCNo5+[RR;42
SSSNs00H0LkC3R\#_sDF#VVCR0\FzVR.R..:NRDLRCDH"#R)"waRH&RMo0CCHs'lCNo5I8_HE802RR&"R7"&MRH0CCosl'HN5oC5-HRR*424Rn2&WR""RR&HCM0o'CsHolNC25[R"&R &"RR0HMCsoC'NHlooC5CC0_M88_CEb058N8sH_#xRC,Hn*42&2RR""XRH&RMo0CCHs'lCNo5+[RR;42
RRRRRRRRRRRRoLCHRM
RRRRRRRRRRRRRzRR.:.4Rp1)4
n RRRRRRRRRRRRRRRRb0FsRblN5R
RRRRRRRRRRRRRRjRqRR=>',4'
RRRRRRRRRRRRRRRRRq4='>R4
',RRRRRRRRRRRRRRRRq=.R>4R''R,
RRRRRRRRRRRRRqRRd>R=R''4,R
RRRRRRRRRRRRRR RBRR=>W
 ,RRRRRRRRRRRRRRRRBRpi=B>Rp
i,RRRRRRRRRRRRRRRR7>R=Rb0l_sNsNH$5R4-R225[,R
RRRRRRRRRRRRRRRRT=0>RlNb_s$sN55H2[R2
RRRRRRRRR2RR;R
RRRRRRRRRRRRRR.Rz.R.:14)pnR 
RRRRRRRRRRRRRbRRFRs0l5Nb
RRRRRRRRRRRRRRRRRqj=D>R#jL52R,
RRRRRRRRRRRRRqRR4>R=RLD#5,42
RRRRRRRRRRRRRRRRRq.=D>R#.L52R,
RRRRRRRRRRRRRqRRd>R=RLD#5,d2
RRRRRRRRRRRRRRRRRB =W>R R,
RRRRRRRRRRRRRBRRp=iR>pRBiR,
RRRRRRRRRRRRR7RRRR=>0_lbNNss$R5H-2R45,[2
RRRRRRRRRRRRRRRR=TR>lR0b__8NNss$R5H-2R45
[2RRRRRRRRRRRR2R;
RRRRRRRRRRRRRRRRR
RRRRRRRRRRRRRRCRM8oCCMsCN0R.Rz.
4;RRRRRRRRCRM8oCCMsCN0R.z.;S
S7amzRR<=0_lb8s_Ns5N$OPFM_0HMCsoC57)q7N)58_8sI0H8ERR-4FR8IFM0R2c22C;
Mo8RCsMCNR0Cz
.;
8CMRONsECH0Os0kCCR#D0CO_D#s;