smult.vhd

Xilinx Ise 官方源代码盘 第四章

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SFSVsFDFbV.:F[sRRRHM4FR0Rb8C0oERCsMCN
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SSCSoMHCsONRlb
R5SSSSSISSHE80QRhR=P>RCHODl25[RP-RCHODl-5[4
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SMo8RCsMCNR0CH	V_C_CbNC88sCasC
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S_HVM	F0C_CbNC88sCasCH:RV0R5sRCC=2R4RMoCC0sNC-R-RCk#RRHVNC88sVRN0RCs0RECl0kDHHbDCSs
SR--I0H8E>qR=
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SVDFsFdFb:sVFRH[RMRR408FRCEb0RMoCC0sNCS
SS:l4RDRVF_FsNC88sS
SSCSoMHCsONRlb
R5SSSSSISSHE80QRhR=P>RCHODl25[RP-RCHODl-5[4
2,SSSSSISSHE80mRza=P>RCHODl+5[4-2RROPCD5Hl[
2,SSSSSMSSkClLsRRR=M>RkClLs[#5-
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SSFSbsl0RN5bR
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MSC8CRoMNCs0HCRVF_M0C	Cb8_N8aCss;CC
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Ck#RCHCC03#8F_Do_HO4c4n3DND;#
kCCRHC#C30D8_FOoH_HNs0NE3D
D;kR#CHCCC38#0_oDFH#O_HCoM8D3ND
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DsHLNRs$P0HsC
G;kR#CP0HsCOG3FFlbM0CM#D3ND
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DsHLNRs$#b$MD$HV;#
kC$R#MHbDVN$30H0sLCk0#D3ND
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CHM00#$RlDNDv0kDR
H#SMoCCOsH5S
SN8IH0:ERR0HMCsoCRR:=gS;
SHLI8R0E:MRH0CCos=R:R
g;SHSI8R0ERH:RMo0CC:sR=UR4
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FSbs50R
qSSRRRR:MRHR0R#8F_Do_HOP0COFNs5I0H8ER-48MFI0jFR2S;
SRARRRR:HRMR#_08DHFoOC_POs0F5HLI8-0E4FR8IFM0R;j2
uSS)Rm7:kRF00R#8F_Do_HOP0COFIs5HE80-84RF0IMF2Rj
-SS-RRA*
RqS
2;S0N0skHL0\CR3MsN	:\RR0HMCsoC;N
S0H0sLCk0Rs\3CPlFCF_M_sINM:\RR0HMCsoC;M
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NO0EHCkO0sNCRs4OERRFV#DlNDDvk0#RH
R
RRMVkOF0HMkR#bH5I8N0E,HRI8L0ERH:RMo0CCRs2skC0sHMRMo0CCHsR#R
RRoLCHRM
RRRRRRHV58IH0REN>HRI8L0E2ER0CSM
R0sCkRsMI0H8E
N;RRRRRDRC#RC
SCRs0MksR8IH0;EL
RRRRCRRMH8RVR;
RMRC8kR#b
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RVRRk0MOHRFMH5MVI0H8ERN,I0H8E:LRR0HMCsoC2CRs0MksR0HMCsoCR
H#RLRRCMoH
RRRRHRRVIR5HE80NRR<I0H8ERL20MEC
sSRCs0kMHRI8N0E;R
RRRRRCCD#
CSs0MksR8IH0;EL
RRRRCRRMH8RVR;
RMRC8MRHV
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RORRF0M#NRM0I0H8E:qRR0HMCsoCRR:=H5MVN8IH0RE,L8IH0;E2
RRRO#FM00NMR8IH0REA:MRH0CCos=R:Rb#k5HNI8,0ERHLI820E;R

RFROlMbFCRM0w#Hs0Fus80kO#o
SCsMCH
O5SHSI8q0ERH:RMo0CC
s;SHSI8A0ERH:RMo0CCSs
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b0FsRS5
SRqR:MRHR0R#8F_Do_HOP0COFNs5I0H8ER-48MFI0jFR2S;
SRAR:MRHR0R#8F_Do_HOP0COFLs5I0H8ER-48MFI0jFR2S;
SRqA:kRF00R#8F_Do_HOP0COFLs5I0H8EI*NHE80-84RF0IMF2Rj
-SS-RRA*
RqS
2;RCRRMO8RFFlbM0CM;R

RFROlMbFCRM0NC88sCasCS.
oCCMs5HO
ISSHE80qRR:HCM0o;Cs
ISSHE80ARR:HCM0o;Cs
0SSsRCCRRR:HCM0o
CsS
2;SsbF0
R5S,SqR,qlR:ARRRHM#_08DHFoOS;
SRqARH:RM0R#8F_Do_HOP0COFLs5I0H8EI*NHE80-84RF0IMF2Rj;S
Sb8sFkRO0:kRF00R#8F_Do_HOP0COFLs5I0H8EI+NHE80-84RF0IMF2Rj
-SS-RRA*
RqS
2;RCRRMO8RFFlbM0CM;R

RHR#oDMNRNN_k:GRR8#0_oDFHPO_CFO0sH5I8q0E-84RF0IMF2Rj;R
RRo#HMRNDLk_NGRR:#_08DHFoOC_POs0F58IH0-EA4FR8IFM0R;j2
RRR#MHoNNDRLRRRR#:R0D8_FOoH_OPC05FsN8IH0LE*I0H8ER-48MFI0jFR2R;
RHR#oDMNR#sCk:D0R8#0_oDFHPO_CFO0sI5NHE80+HLI8-0E4FR8IFM0R;j2
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MRR-RR-IR1NqbRR8NMRHARVCRMO#C#N
s$RHRRVNqDssoCAH:RVNR5I0H8ERR>L8IH0RE2oCCMsCN0
RRRRVRRFFsDF:b.RsVFRHHRMRRj0LFRI0H8ER-4oCCMsCN0
NSS0H0sLCk0Rs\3N\M	RRFVs#CoqRR:DCNLD#RHR
j;S0SN0LsHkR0C\C3slCFP__MFIMNs\VRFRosC#:qRRLDNCHDR#;R4
RRRS0SN0LsHkR0C\N3sMR	\FsVRCAo#RD:RNDLCRRH#jS;
S0N0skHL0\CR3lsCF_PCMIF_N\sMRRFVs#CoARR:DCNLD#RHR
4;RRRRRCRLo
HMSRRRs#Coqb:RHLbCkSV
RbRRFRs0l5Nb
RSRRRRRQ>R=RHA52S,
RRRRRRRm=N>R_GNk5
H2SRRR2S;
RsRRCAo#:HRbbkCLVR
SRFRbsl0RN
b5SRRRRQRRRR=>q25H,R
SRRRRR=mR>_RLN5kGHS2
R2RR;R
RRRRRCRM8oCCMsCN0RsVFDbFF.R;
RRRRRsVFDbFF4V:RFHsRRRHML8IH00ERFIRNHE80-o4RCsMCN
0CS0SN0LsHkR0C\N3sMR	\FsVRCAo#RD:RNDLCRRH#jS;
S0N0skHL0\CR3lsCF_PCMIF_N\sMRRFVs#CoARR:DCNLD#RHR
4;RRRRRCRLo
HMSRRRs#CoAb:RHLbCkSV
RbRRFRs0l5Nb
RSRRRRRQ>R=RHq52S,
RRRRRRRm=L>R_GNk5
H2SRRR2R;
RRRRR8CMRMoCC0sNCFRVsFDFb
4;RCRRMo8RCsMCNR0CHDVqNCsos
A;
RRRH#VqlDNDC:sARRHV5HNI8R0E<L=RI0H8Eo2RCsMCN
0CRRRRRFRVsFDFbRN:VRFsHMRHR0jRFIRNHE80-o4RCsMCN
0CS0SN0LsHkR0C\N3sMR	\FsVRCBo#RD:RNDLCRRH#jS;
S0N0skHL0\CR3lsCF_PCMIF_N\sMRRFVs#CoBRR:DCNLD#RHR
4;S0SN0LsHkR0C\N3sMR	\FsVRC1o#RD:RNDLCRRH#jS;
S0N0skHL0\CR3lsCF_PCMIF_N\sMRRFVs#Co1RR:DCNLD#RHR
4;RRRRRCRLo
HMSRRRs#CoBb:RHLbCkSV
RbRRFRs0l5Nb
RSRRRRRQ>R=RHq52S,
RRRRRRRm=N>R_GNk5
H2SRRR2S;
RsRRC1o#:HRbbkCLVR
SRFRbsl0RN
b5SRRRRQRRRR=>A25H,R
SRRRRR=mR>_RLN5kGHS2
R2RR;R
RRRRRCRM8oCCMsCN0RsVFDbFFNR;
RRRRRsVFDbFFLV:RFHsRRRHMN8IH00ERFIRLHE80-o4RCsMCN
0CS0SN0LsHkR0C\N3sMR	\FsVRC7o#RD:RNDLCRRH#jS;
S0N0skHL0\CR3lsCF_PCMIF_N\sMRRFVs#Co7RR:DCNLD#RHR
4;RRRRRCRLo
HMSRRRs#Co7b:RHLbCkSV
RbRRFRs0l5Nb
RSRRRRRQ>R=RHA52S,
RRRRRRRm=L>R_GNk5
H2SRRR2R;
RRRRR8CMRMoCC0sNCFRVsFDFb
L;RCRRMo8RCsMCNR0CH#VqlDNDC;sA
R
RRswH#001CRb:w#Hs0Fus80kO#o
SCsMCHlORN5bR
ISSHE80q>R=R8IH0,Eq
ISSHE80A>R=R8IH0
EASS2
b0FsRblNRS5
S=qR>_RNN,kG
ASSRR=>Lk_NGS,
SRqA=N>RL2
S;R

R8Rq8aCss.CCRN:R8s8CaCsC.o
SCsMCHlORN5bR
ISSHE80q>R=R8IH0,Eq
ISSHE80A>R=R8IH0,EA
0SSsRCCR>R=RSjSSR--4VRHR8N8CNsRVs0CRC0ERDlk0DHbH,CsRCjRD
#CSS2
b0FsRblNRS5
SRql=N>R_GNk5,j2
qSSR>R=RNN_kIG5HE80q2-4,S
SA=RR>_RLN5kGI0H8E4A-2S,
SRqA=N>RLS,
SFbs80kORR=>skC#DS0
2
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S_HVIRF:H5VRI0H8E=R<R8IH0REq+HRI8A0E2CRoMNCs0RC
RSRRu7)mRR<=skC#DI05HE80-84RF0IMF2Rj;C
SMo8RCsMCNR0CHIV_FS;
HIV_4H:RVIR5HE80RI>RHE80qRR+I0H8ERA2oCCMsCN0
RRRR)SumI75HE80qH+I8A0E-84RF0IMF2RjRR<=skC#DI05HE80qH+I8A0E-84RF0IMF2Rj;S
SV_FsDbFF_RI:VRFsHMRHR8IH0+EqI0H8E0ARFHRI8-0E4CRoMNCs0SC
S)SumH752=R<R#sCk5D0I0H8EIq+HE80A2-4;S
SCRM8oCCMsCN0RsVF_FDFb;_I
MSC8CRoMNCs0HCRV4_I;M
C8sRNO;E4
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DLssN$CRHC
C;kR#CHCCC38#0_oDFH4O_43ncN;DD
Ck#RCHCC03#8F_Do_HON0sHED3NDk;
#HCRC3CC#_08DHFoOM_k#MHoCN83D
D;
0CMHR0$1pvza#RH
RRRRMoCCOsH5R
SRIRRHE80RRR:HCM0oRCs:.=RcS;
RRRRN8IH0:ERR0HMCsoCRR:=4
.;SRRRRHLI8R0E:MRH0CCos=R:R
4.S2SS;R
RRFRbs
05S:RqRRHM#_08DHFoOC_POs0F5HNI8R0E-84RF0IMF2Rj;R
RRRRRRARR:MRHR8#0_oDFHPO_CFO0sI5LHE80RR-48MFI0jFR2R;
RRRRRRRRu7)mRF:Rk#0R0D8_FOoH_OPC05FsI0H8E4R-RI8FMR0FjS2
S;R2
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ONsECH0Os0kCCRODDD_CDPCRRFV1pvza#RH
V
Sk0MOHRFMOINDHE80LOR5F0M#NRM0IRN,I:LRR0HMCsoC2CRs0MksR0HMCsoCR
H#SNSPsLHNDsCRORM0:MRH0CCosS;
LHCoMS
SH5VRI<LR=NRI2ER0CSM
SOSsM:0R=LRIRS;
S#CDCSR
SOSsM:0R=NRIRS;
S8CMR;HV
sSSCs0kMORsM
0;S8CMRDONI0H8E
L;
kSVMHO0FOMRNHDI8N0ERF5OMN#0MI0RNI,RLRR:HCM0o2CsR0sCkRsMHCM0oRCsHS#
SsPNHDNLCORsM:0RR0HMCsoC;L
SCMoH
HSSVIR5L=R<R2INRC0EMS
SSMsO0=R:RRIN;S
SCCD#RS
SSMsO0=R:RRIL;S
SCRM8H
V;SCSs0MksRMsO0S;
CRM8OINDHE80N
;
SMOF#M0N0HRI8N0ERH:RMo0CC:sR=NROD8IH05ENN8IH0RE,L8IH0;E2
FSOMN#0MI0RHE80LRR:HCM0oRCs:O=RNHDI8L0E5HNI8,0ERHLI820E;S

ObFlFMMC0lR#NvDDk
D0SCSoMHCsOS5
SISNHE80RH:RMo0CC;sR
SSSL8IH0:ERR0HMCsoCRS;
SHSI8R0ERH:RMo0CCSs
S
2;SFSbs50R
SSSqRRRRH:RM#RR0D8_FOoH_OPC05FsN8IH04E-RI8FMR0Fj
2;SASSRRRR:MRHR0R#8F_Do_HOP0COFLs5I0H8ER-48MFI0jFR2S;
S)Sum:7RR0FkR8#0_oDFHPO_CFO0sH5I8-0E4FR8IFM0R
j2S;S2
MSC8FROlMbFC;M0
#
SHNoMD_RNNRkGR#:R0D8_FOoH_OPC05FsI0H8E4N-RI8FMR0FjR2;R#
SHNoMD_RLNRkGR#:R0D8_FOoH_OPC05FsI0H8E4L-RI8FMR0FjR2;
HS#oDMNR#sCkRD0:0R#8F_Do_HOP0COFIs5HE80NH+I8L0E-84RF0IMF2Rj;C
Lo
HMSR--p'C0#IR#NSb
QIw_Nk_#bL_I:VRHRI5NHE80RR>=L8IH0RE2oCCMsCN0
NSS_GNkRR<=NS;
SNL_k<GR=;RL
MSC8CRoMNCs0QCRwN_I_b#k_;IL
Q
SwL_I_b#k_:INRRHV5HLI8R0E>IRNHE802CRoMNCs0SC
SNN_k<GR=;RL
LSS_GNkRR<=NS;
CRM8oCCMsCN0R_QwI#L_kIb_N
;
S_HVIR4:H5VRI0H8E=LRRR42oCCMsCN0
sSSCD#k0=R<RhBmea_17m_pt_QBea Bmj)5,HRI8N0E+8IH02ELRCIEMLR5_GNk5Rj2=jR''S2
SCSSDR#CNk_NGH5I8N0E-R42&_RNN;kG

SSS)Sum<7R=CRs#0kD58IH04E-RI8FMR0Fj
2;S8CMRMoCC0sNCVRH_;I4
H
SVj_I:VRHRH5I8L0ER.=R2CRoMNCs0SC
So#HMRNDObFlDCClMR0,0OIFFRlb:0R#8F_Do_HOP0COFIs5HE80NR-48MFI0jFR2S;
LHCoMS
SV_FsDbFF:FRVsRRHHjMRRR0FI0H8E4N-RMoCC0sNCS
SSlOFblDCC5M0H<2R=FRM0_RNN5kGHR2;
CSSMo8RCsMCNR0CV_FsDbFF;S
S0OIFFRlb<O=RFDlbCMlC0RR+';4'
S
SskC#D<0R=mRBh1e_ap7_mBtQ_Be a5m)jN,RI0H8EI+LHE802ERIC5MRLk_NG25jR'=Rj
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SCSSDR#CNk_NGH5I8L0E-R42&_RNN5kGI0H8E4L-2RR&Nk_NG
R;
uSS)Rm7<s=RCD#k0H5I8-0E4FR8IFM0R;j2
MSC8CRoMNCs0HCRVj_I;S

HIV_4H:RVIR5HE80LRR>.o2RCsMCN
0CSkSlD:04RlR#NvDDz
paSSSSoCCMsRHOlRNb5S
SSSSSSHNI8R0E=I>RHE80NS,
SSSSSISLHE80RR=>I0H8E
L,SSSSSISSHE80R>R=R8IH0SE
S2SS
SSSSsbF0NRlb
R5SSSSSqSSRR=>Nk_NGS,
SSSSSRSA=L>R_GNk,S
SSSSSSmu)7>R=Rmu)7S
SS;S2
MSC8CRoMNCs0HCRV4_I;C

MO8RC_DDDCCPD
;