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Code Issues Projects Releases Wiki Activity

Performance: Remove float state

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This commit is contained in:
Barry Silverman 2010-10-14 21:00:07 -04:00
parent 33aa993c8d
commit 98ec727c50
3 changed files with 20 additions and 41 deletions
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55
chipsim.js
View File

@ -57,14 +57,11 @@ function recalcNode(node){
if(node==ngnd) return;
if(node==npwr) return;
group = getNodeGroup(node);
var newv = getNodeValue();
var newState = (newv[0]=='h');
var newFloat = (newv[1]=='f');
var newState = getNodeValue(group);
if(ctrace && (traceTheseNodes.indexOf(node)!=-1))
console.log('recalc', node, group);
for(var i in group){
var n = nodes[group[i]];
n.float = newFloat;
if(n.state==newState)continue; /******Performance********/
n.state = newState;
n.gates.forEach(
@ -93,27 +90,16 @@ function turnTransistorOff(t){
if(ctrace && (traceTheseTransistors.indexOf(t.name)!=-1))
console.log(t.name, 'off', t.gate, t.c1, t.c2);
t.on = false;
floatnode(t.c1);
floatnode(t.c2);
addRecalcNode(t.c1);
addRecalcNode(t.c2);
}
function floatnode(nn){
if(nn==ngnd) return;
if(nn==npwr) return;
var n = nodes[nn];
n.float = true;
if(ctrace && (traceTheseNodes.indexOf(nn)!=-1))
console.log('floating', nn, 'at', n.state);
}
function addRecalcNode(nn){
if(nn==ngnd) return;
if(nn==npwr) return;
if(recalcHash[nn] == 1)return;
recalclist.push(nn);
recalcHash[nn] = 1;
if(nn==ngnd) return;
if(nn==npwr) return;
if(recalcHash[nn] == 1)return;
recalclist.push(nn);
recalcHash[nn] = 1;
}
function getNodeGroup(i){
@ -147,19 +133,16 @@ function addNodeTransistor(node, tr){
function getNodeValue(){
if(arrayContains(group, ngnd)) return 'l ';
if(arrayContains(group, npwr)) return 'h ';
var flstate;
if(arrayContains(group, ngnd)) return false;
if(arrayContains(group, npwr)) return true;
for(var i in group){
var nn = group[i];
var n = nodes[nn];
if(n.pullup) return 'h ';
if(n.pulldown) return 'l ';
if((!n.state && n.float)&&(flstate==undefined)) flstate = 'lf';
if(n.state && n.float) flstate = 'hf';
if(n.pullup) return true;
if(n.pulldown) return false;
if(n.state) return true;
}
if(flstate==undefined && ctrace) console.log(group);
return flstate;
return false;
}
@ -182,26 +165,26 @@ function allNodes(){
}
function stateString(){
var codes = ['g','l','h','f' ];
var codes = ['l','h'];
var res = '';
for(var i=0;i<1725;i++){
var n = nodes[i];
if(n==undefined) res+='x';
else if(i==ngnd) res+='g';
else if(i==npwr) res+='h';
else res+= codes[n.state*2 + n.float];
else if(i==npwr) res+='v';
else res+= codes[0+n.state];
}
return res;
}
function showState(str){
var codes = {g: 'l ', h: 'h ', f: 'hf', l: 'lf'};
var codes = {g: false, h: true, v: true, l: false};
for(var i=0;i<str.length;i++){
if(str[i]=='x') continue;
nodes[i].state = ((codes[str[i]])[0]=='h');
nodes[i].float = ((codes[str[i]])[1]=='f');
var state = codes[str[i]];
nodes[i].state = state;
var gates = nodes[i].gates;
gates.forEach(function(t){t.on=isNodeHigh(i);});
gates.forEach(function(t){t.on=state;});
}
refresh();
}

4
macros.js
View File

@ -172,10 +172,6 @@ var goldenChecksum;
// simulate a single clock phase, updating trace and highlighting layout
function step(){
if(!animateChipLayout){
halfStep();
return;
}
var s=stateString();
var m=getMem();
trace[cycle]= {chip: s, mem: m};

2
wires.js
View File

@ -36,7 +36,7 @@ function setupNodes(){
var w = seg[0];
if(nodes[w]==undefined)
nodes[w] = {segs: new Array(), num: w, pullup: seg[1]=='+',
state: false, float: true, gates: new Array(), c1c2s: new Array()};
state: false, gates: new Array(), c1c2s: new Array()};
if(w==ngnd) continue;
if(w==npwr) continue;
nodes[w].segs.push(seg.slice(3));