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[dev]add speedometer

This commit is contained in:
BigEd 2010-10-02 11:51:33 +00:00
parent 5578726fd3
commit 5f24e86c3e
1 changed files with 23 additions and 1 deletions
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24
macros.js
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@ -341,13 +341,35 @@ function chipStatus(){
' Y:' + hexByte(readY()) +
' SP:' + hexByte(readSP()) +
' ' + readPstring();
setStatus(machine1 + "<br>" + machine2);
setStatus(machine1 + "<br>" + machine2 + "<br>Hz: " + estimatedHz().toFixed(1));
if (loglevel>0) {
updateLogbox(signalSet(loglevel));
}
selectCell(ab);
}
var prevHzTimeStamp=0;
var prevHzCycleCount=0;
var prevHzEstimate1=1;
var prevHzEstimate2=1;
var HzSamplingRate=10;
function estimatedHz(){
if(cycle%HzSamplingRate!=3)
return prevHzEstimate1;
var HzTimeStamp = now();
var HzEstimate = (cycle-prevHzCycleCount+.01)/(HzTimeStamp-prevHzTimeStamp+.01);
HzEstimate=HzEstimate*1000/2; // convert from phases per millisecond to Hz
if(HzEstimate<5)
HzSamplingRate=5; // quicker
if(HzEstimate>10)
HzSamplingRate=10; // smoother
prevHzEstimate2=prevHzEstimate1;
prevHzEstimate1=(HzEstimate+prevHzEstimate1+prevHzEstimate2)/3; // wrong way to average speeds
prevHzTimeStamp=HzTimeStamp;
prevHzCycleCount=cycle;
return prevHzEstimate1
}
function initLogbox(names){
var logbox=document.getElementById('logstream');
logStream = [];