alu_4bit.twx

this program performs the functonality of 4 bit alu

<!ATTLIST twDelInfo twAcc (twRouted | twEst | twApprox) "twRouted">
<!ELEMENT twSite (#PCDATA)>
<!ELEMENT twDelType (#PCDATA)>
<!ELEMENT twFanCnt (#PCDATA)>
<!ELEMENT twComp (#PCDATA)>
<!ELEMENT twNet (#PCDATA)>
<!ELEMENT twBEL (#PCDATA)>
<!ELEMENT twLogDel (#PCDATA)>
<!ELEMENT twRouteDel (#PCDATA)>
<!ELEMENT twDestClk (#PCDATA)>
<!ATTLIST twDestClk twEdge (twRising | twFalling) "twRising">
<!ATTLIST twDestClk twArriveTime CDATA #IMPLIED>
<!ATTLIST twDestClk twClkRes CDATA #IMPLIED>
<!ELEMENT twPctLog (#PCDATA)>
<!ELEMENT twPctRoute (#PCDATA)>
<!ELEMENT twNetRpt (twDelNet | twSlackNet | twSkewNet)>
<!ELEMENT twDelNet (twDel, twNet, twDetNet?)>
<!ELEMENT twSlackNet (twSlack, twNet, twDel, twNotMet?, twTimeConst, twAbsSlack, twDetNet?)>
<!ELEMENT twTimeConst (#PCDATA)>
<!ELEMENT twAbsSlack (#PCDATA)>
<!ELEMENT twSkewNet (twSlack, twNet, twSkew, twNotMet?, twTimeConst, twAbsSlack, twDetSkewNet?)>
<!ELEMENT twSkew (#PCDATA)>
<!ELEMENT twDetNet (twNetDel*)>
<!ELEMENT twNetDel (twSrc, twDest, twNetDelInfo)>
<!ELEMENT twNetDelInfo (#PCDATA)>
<!ATTLIST twNetDelInfo twAcc (twRouted | twEst | twApprox) "twRouted">
<!ELEMENT twDetSkewNet (twNetSkew*)>
<!ELEMENT twNetSkew (twSrc, twDest, twNetDelInfo, twSkew)>
<!ELEMENT twConstList (twConstListItem)*>
<!ELEMENT twConstListItem (twConstName, twNotMet?, twReqVal?, twActVal?, twLogLvls?)> 
<!ATTLIST twConstListItem twUnits (twTime | twFreq) "twTime">
<!ELEMENT twNotMet EMPTY>
<!ELEMENT twReqVal (#PCDATA)>
<!ELEMENT twActVal (#PCDATA)>
<!ELEMENT twTimeGrp (twTimeGrpName, twCompList?, twSigList?, twBELList?, twMacList?, twPinList?)>
<!ELEMENT twTimeGrpName (#PCDATA)>
<!ELEMENT twCompList (twCompName+)>
<!ELEMENT twCompName (#PCDATA)>
<!ELEMENT twSigList (twSigName+)>
<!ELEMENT twSigName (#PCDATA)>
<!ELEMENT twBELList (twBELName+)>
<!ELEMENT twBELName (#PCDATA)>
<!ELEMENT twMacList (twMacName+)>
<!ELEMENT twMacName (#PCDATA)>
<!ELEMENT twPinList (twPinName+)>
<!ELEMENT twPinName (#PCDATA)>
<!ELEMENT twUnmetConstCnt (#PCDATA)>
<!ELEMENT twDataSheet (twSUH2ClkList*, (twClk2PadList|twClk2OutList)*, twClk2SUList*, twPad2PadList?)>
<!ATTLIST twDataSheet twNameLen CDATA #REQUIRED>
<!ELEMENT twSUH2ClkList (twDest, twSUH2Clk+)>
<!ATTLIST twSUH2ClkList twDestWidth CDATA #IMPLIED>
<!ATTLIST twSUH2ClkList twPhaseWidth CDATA #IMPLIED>
<!ELEMENT twSUH2Clk (twSrc, twSUHTime, twSUHTime?)>
<!ELEMENT twSUHTime (twSU2ClkTime?,twH2ClkTime?)>
<!ATTLIST twSUHTime twInternalClk CDATA #IMPLIED>
<!ATTLIST twSUHTime twClkPhase CDATA #IMPLIED>
<!ELEMENT twSU2ClkTime (#PCDATA)>
<!ATTLIST twSU2ClkTime twEdge (twRising | twFalling | twIndet) #REQUIRED>
<!ELEMENT twH2ClkTime (#PCDATA)>
<!ATTLIST twH2ClkTime twEdge (twRising | twFalling | twIndet) #REQUIRED>
<!ELEMENT twClk2PadList (twSrc, twClk2Pad+)>
<!ELEMENT twClk2Pad (twDest, twTime)>
<!ELEMENT twTime (#PCDATA)>
<!ATTLIST twTime twEdge (twRising | twFalling | twIndet) #REQUIRED>
<!ELEMENT twClk2OutList (twSrc, twClk2Out+)>
<!ATTLIST twClk2OutList twDestWidth CDATA #REQUIRED>
<!ATTLIST twClk2OutList twPhaseWidth CDATA #REQUIRED>
<!ELEMENT twClk2Out EMPTY>
<!ATTLIST twClk2Out twOutPad CDATA #REQUIRED>
<!ATTLIST twClk2Out twMinTime CDATA #REQUIRED>
<!ATTLIST twClk2Out twMinEdge CDATA #REQUIRED>
<!ATTLIST twClk2Out twMaxTime CDATA #REQUIRED>
<!ATTLIST twClk2Out twMaxEdge CDATA #REQUIRED>
<!ATTLIST twClk2Out twInternalClk CDATA #REQUIRED>
<!ATTLIST twClk2Out twClkPhase CDATA #REQUIRED>
<!ELEMENT twClk2SUList (twDest, twClk2SU+)>
<!ATTLIST twClk2SUList twDestWidth CDATA #IMPLIED>
<!ELEMENT twClk2SU (twSrc, twRiseRise?, twFallRise?, twRiseFall?, twFallFall?)>
<!ELEMENT twRiseRise (#PCDATA)>
<!ELEMENT twFallRise (#PCDATA)>
<!ELEMENT twRiseFall (#PCDATA)>
<!ELEMENT twFallFall (#PCDATA)>
<!ELEMENT twPad2PadList (twPad2Pad+)>
<!ATTLIST twPad2PadList twSrcWidth CDATA #IMPLIED>
<!ATTLIST twPad2PadList twDestWidth CDATA #IMPLIED>
<!ELEMENT twPad2Pad (twSrc, twDest, twDel)>
<!ELEMENT twNonDedClks ((twWarn | twInfo), twNonDedClk+)>
<!ELEMENT twNonDedClk (#PCDATA)>
<!ELEMENT twSum ( twErrCnt, twScore, twConstCov, twStats)>
<!ELEMENT twScore (#PCDATA)>
<!ELEMENT twConstCov (twPathCnt, twNetCnt, twConnCnt, twPct?)>
<!ELEMENT twPathCnt (#PCDATA)>
<!ELEMENT twNetCnt (#PCDATA)>
<!ELEMENT twConnCnt (#PCDATA)>
<!ELEMENT twPct (#PCDATA)>
<!ELEMENT twStats ( twMinPer?, twMaxFreq?, twMaxCombDel?, twMaxFromToDel?, twMaxNetDel?, twMaxNetSkew?, twMaxInAfterClk?, twMinInBeforeClk?, twMaxOutBeforeClk?, twMinOutAfterClk?, (twInfo | twWarn)*)>
<!ELEMENT twMaxCombDel (#PCDATA)>
<!ELEMENT twMaxFromToDel (#PCDATA)>
<!ELEMENT twMaxNetDel (#PCDATA)>
<!ELEMENT twMaxNetSkew (#PCDATA)>
<!ELEMENT twMaxInAfterClk (#PCDATA)>
<!ELEMENT twMinInBeforeClk (#PCDATA)>
<!ELEMENT twMaxOutBeforeClk (#PCDATA)>
<!ELEMENT twMinOutAfterClk (#PCDATA)>
<!ELEMENT twFoot (twTimestamp)>
<!ELEMENT twTimestamp (#PCDATA)>
<!ELEMENT twClientInfo (twClientName, twAttrList?)>
<!ELEMENT twClientName (#PCDATA)>
<!ELEMENT twAttrList (twAttrListItem)*>
<!ELEMENT twAttrListItem (twName, twValue*)>
<!ELEMENT twName (#PCDATA)>
<!ELEMENT twValue (#PCDATA)>
]>
<twReport><twHead><twExecVer>Release 6.3i Trace G.35</twExecVer><twCopyright>Copyright (c) 1995-2004 Xilinx, Inc.  All rights reserved.</twCopyright><twCmdLine>E:/Xilinx/bin/nt/trce.exe -intstyle ise -e 3 -l 3 -xml alu_4bit alu_4bit.ncd -o
alu_4bit.twr alu_4bit.pcf

</twCmdLine><twDesign>alu_4bit.ncd</twDesign><twPCF>alu_4bit.pcf</twPCF><twDevInfo arch="spartan3"><twDevName>xc3s50</twDevName><twSpeedGrade>-5</twSpeedGrade><twSpeedVer>ADVANCED 1.32 2004-06-25</twSpeedVer></twDevInfo><twRptInfo twRptLvl="twErr"></twRptInfo><twEnvVar name="NONE" description="No environment variables were set" /></twHead><twInfo>INFO:Timing:2698 - No timing constraints found, doing default enumeration.</twInfo><twInfo>INFO:Timing:2752 - To get complete path coverage, use the unconstrained paths option. All paths that are not constrained will be reported in the unconstrained paths section(s) of the report.</twInfo><twBody><twErrRpt><twDataSheet twNameLen="15"><twSUH2ClkList twDestWidth = "2" twPhaseWidth = "10"><twDest>clk1</twDest><twSUH2Clk ><twSrc>ce</twSrc><twSUHTime twInternalClk ="clk1_BUFGP" twClkPhase ="0.000" ><twSU2ClkTime twEdge="twRising">3.935</twSU2ClkTime><twH2ClkTime twEdge="twRising">-1.843</twH2ClkTime></twSUHTime></twSUH2Clk></twSUH2ClkList><twSUH2ClkList twDestWidth = "6" twPhaseWidth = "7"><twDest>m</twDest><twSUH2Clk ><twSrc>ain&lt;0&gt;</twSrc><twSUHTime twInternalClk ="m_BUFGP" twClkPhase ="0.000" ><twSU2ClkTime twEdge="twRising">3.870</twSU2ClkTime><twH2ClkTime twEdge="twRising">3.024</twH2ClkTime></twSUHTime><twSUHTime twClkPhase="0.000" twInternalClk ="m_BUFGP"><twSU2ClkTime twEdge="twFalling">-0.494</twSU2ClkTime><twH2ClkTime twEdge="twFalling">2.506</twH2ClkTime></twSUHTime></twSUH2Clk><twSUH2Clk ><twSrc>ain&lt;1&gt;</twSrc><twSUHTime twInternalClk ="m_BUFGP" twClkPhase ="0.000" ><twSU2ClkTime twEdge="twRising">2.850</twSU2ClkTime><twH2ClkTime twEdge="twRising">3.046</twH2ClkTime></twSUHTime><twSUHTime twClkPhase="0.000" twInternalClk ="m_BUFGP"><twSU2ClkTime twEdge="twFalling">-0.601</twSU2ClkTime><twH2ClkTime twEdge="twFalling">2.592</twH2ClkTime></twSUHTime></twSUH2Clk><twSUH2Clk ><twSrc>ain&lt;2&gt;</twSrc><twSUHTime twInternalClk ="m_BUFGP" twClkPhase ="0.000" ><twSU2ClkTime twEdge="twRising">1.252</twSU2ClkTime><twH2ClkTime twEdge="twRising">3.203</twH2ClkTime></twSUHTime><twSUHTime twClkPhase="0.000" twInternalClk ="m_BUFGP"><twSU2ClkTime twEdge="twFalling">-0.334</twSU2ClkTime><twH2ClkTime twEdge="twFalling">2.378</twH2ClkTime></twSUHTime></twSUH2Clk><twSUH2Clk ><twSrc>ain&lt;3&gt;</twSrc><twSUHTime twInternalClk ="m_BUFGP" twClkPhase ="0.000" ><twSU2ClkTime twEdge="twRising">0.382</twSU2ClkTime><twH2ClkTime twEdge="twRising">3.164</twH2ClkTime></twSUHTime><twSUHTime twClkPhase="0.000" twInternalClk ="m_BUFGP"><twSU2ClkTime twEdge="twFalling">-0.285</twSU2ClkTime><twH2ClkTime twEdge="twFalling">2.340</twH2ClkTime></twSUHTime></twSUH2Clk><twSUH2Clk ><twSrc>bin&lt;0&gt;</twSrc><twSUHTime twInternalClk ="m_BUFGP" twClkPhase ="0.000" ><twSU2ClkTime twEdge="twRising">3.654</twSU2ClkTime><twH2ClkTime twEdge="twRising">2.665</twH2ClkTime></twSUHTime><twSUHTime twClkPhase="0.000" twInternalClk ="m_BUFGP"><twSU2ClkTime twEdge="twFalling">-0.647</twSU2ClkTime><twH2ClkTime twEdge="twFalling">2.629</twH2ClkTime></twSUHTime></twSUH2Clk><twSUH2Clk ><twSrc>bin&lt;1&gt;</twSrc><twSUHTime twInternalClk ="m_BUFGP" twClkPhase ="0.000" ><twSU2ClkTime twEdge="twRising">3.074</twSU2ClkTime><twH2ClkTime twEdge="twRising">2.492</twH2ClkTime></twSUHTime><twSUHTime twClkPhase="0.000" twInternalClk ="m_BUFGP"><twSU2ClkTime twEdge="twFalling">-0.013</twSU2ClkTime><twH2ClkTime twEdge="twFalling">2.122</twH2ClkTime></twSUHTime></twSUH2Clk><twSUH2Clk ><twSrc>bin&lt;2&gt;</twSrc><twSUHTime twInternalClk ="m_BUFGP" twClkPhase ="0.000" ><twSU2ClkTime twEdge="twRising">2.236</twSU2ClkTime><twH2ClkTime twEdge="twRising">2.524</twH2ClkTime></twSUHTime><twSUHTime twClkPhase="0.000" twInternalClk ="m_BUFGP"><twSU2ClkTime twEdge="twFalling">0.132</twSU2ClkTime><twH2ClkTime twEdge="twFalling">2.006</twH2ClkTime></twSUHTime></twSUH2Clk><twSUH2Clk ><twSrc>bin&lt;3&gt;</twSrc><twSUHTime twInternalClk ="m_BUFGP" twClkPhase ="0.000" ><twSU2ClkTime twEdge="twRising">2.150</twSU2ClkTime><twH2ClkTime twEdge="twRising">1.813</twH2ClkTime></twSUHTime><twSUHTime twClkPhase="0.000" twInternalClk ="m_BUFGP"><twSU2ClkTime twEdge="twFalling">0.485</twSU2ClkTime><twH2ClkTime twEdge="twFalling">1.724</twH2ClkTime></twSUHTime></twSUH2Clk><twSUH2Clk ><twSrc>cin</twSrc><twSUHTime twInternalClk ="m_BUFGP" twClkPhase ="0.000" ><twSU2ClkTime twEdge="twRising">2.087</twSU2ClkTime><twH2ClkTime twEdge="twRising">2.245</twH2ClkTime></twSUHTime></twSUH2Clk><twSUH2Clk ><twSrc>sel</twSrc><twSUHTime twInternalClk ="m_BUFGP" twClkPhase ="0.000" ><twSU2ClkTime twEdge="twRising">4.437</twSU2ClkTime><twH2ClkTime twEdge="twRising">2.457</twH2ClkTime></twSUHTime><twSUHTime twClkPhase="0.000" twInternalClk ="m_BUFGP"><twSU2ClkTime twEdge="twFalling">0.828</twSU2ClkTime><twH2ClkTime twEdge="twFalling">2.304</twH2ClkTime></twSUHTime></twSUH2Clk></twSUH2ClkList><twClk2OutList twDestWidth = "7" twPhaseWidth = "7"><twSrc>m</twSrc><twClk2Out  twOutPad = "sout&lt;0&gt;" twMinTime = "8.144" twMinEdge ="twFalling" twMaxTime = "9.340" twMaxEdge ="twFalling" twInternalClk="m_BUFGP" twClkPhase="0.000" ></twClk2Out><twClk2Out  twOutPad = "sout&lt;1&gt;" twMinTime = "8.145" twMinEdge ="twFalling" twMaxTime = "9.340" twMaxEdge ="twFalling" twInternalClk="m_BUFGP" twClkPhase="0.000" ></twClk2Out><twClk2Out  twOutPad = "sout&lt;2&gt;" twMinTime = "8.145" twMinEdge ="twFalling" twMaxTime = "9.340" twMaxEdge ="twFalling" twInternalClk="m_BUFGP" twClkPhase="0.000" ></twClk2Out><twClk2Out  twOutPad = "sout&lt;3&gt;" twMinTime = "8.144" twMinEdge ="twFalling" twMaxTime = "9.340" twMaxEdge ="twFalling" twInternalClk="m_BUFGP" twClkPhase="0.000" ></twClk2Out></twClk2OutList><twClk2SUList twDestWidth = "4"><twDest>clk1</twDest><twClk2SU><twSrc>clk1</twSrc><twRiseRise>4.466</twRiseRise></twClk2SU></twClk2SUList><twClk2SUList twDestWidth = "1"><twDest>m</twDest><twClk2SU><twSrc>m</twSrc><twRiseRise>3.288</twRiseRise></twClk2SU></twClk2SUList><twPad2PadList twSrcWidth = "6" twDestWidth = "4"><twPad2Pad><twSrc>ain&lt;0&gt;</twSrc><twDest>cout</twDest><twDel>10.888</twDel></twPad2Pad><twPad2Pad><twSrc>ain&lt;1&gt;</twSrc><twDest>cout</twDest><twDel>9.748</twDel></twPad2Pad><twPad2Pad><twSrc>ain&lt;2&gt;</twSrc><twDest>cout</twDest><twDel>8.717</twDel></twPad2Pad><twPad2Pad><twSrc>ain&lt;3&gt;</twSrc><twDest>cout</twDest><twDel>7.779</twDel></twPad2Pad><twPad2Pad><twSrc>bin&lt;0&gt;</twSrc><twDest>cout</twDest><twDel>11.095</twDel></twPad2Pad><twPad2Pad><twSrc>bin&lt;1&gt;</twSrc><twDest>cout</twDest><twDel>10.364</twDel></twPad2Pad><twPad2Pad><twSrc>bin&lt;2&gt;</twSrc><twDest>cout</twDest><twDel>9.851</twDel></twPad2Pad><twPad2Pad><twSrc>bin&lt;3&gt;</twSrc><twDest>cout</twDest><twDel>8.733</twDel></twPad2Pad><twPad2Pad><twSrc>cin</twSrc><twDest>cout</twDest><twDel>11.141</twDel></twPad2Pad></twPad2PadList></twDataSheet></twErrRpt></twBody><twFoot><twTimestamp>Tue Feb 14 12:44:49 2006</twTimestamp></twFoot><twClientInfo><twClientName>Trace</twClientName><twAttrList><twAttrListItem><twName>Trace Settings</twName><twValue>Peak Memory Usage: 46 MB
</twValue></twAttrListItem></twAttrList></twClientInfo></twReport>