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Limit CPU display updates to a reasonable number (ie, twice per second)

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This commit is contained in:
Jeff 2016-11-14 20:10:18 -08:00 • committed by Jeff Parsons
commit 77897275eb
5 changed files with 247 additions and 238 deletions
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10
modules/pdp11/lib/panel.js
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@ -60,8 +60,8 @@ function PanelPDP11(parmsPanel)
* TODO: Add some UI for fDisplayLiveRegs (either an XML property, or a UI checkbox, or both).
*/
this.cLiveRegs = 0;
this.nPeriodicCount = 0;
this.nPeriodicLimit = 60;
this.nDisplayCount = 0;
this.nDisplayLimit = 60;
this.fDisplayLiveRegs = true;
/*
@ -968,7 +968,7 @@ PanelPDP11.prototype.setData = function(value, fActive)
* Called by the Computer component at intervals to update registers, LEDs, etc.
*
* @this {PanelPDP11}
* @param {number} [nUpdate] (< 0 for forced, > 0 for periodic, undefined otherwise)
* @param {number} [nUpdate] (< 0 for forced, > 0 for periodic, 0 otherwise)
*/
PanelPDP11.prototype.updateDisplay = function(nUpdate)
{
@ -985,7 +985,7 @@ PanelPDP11.prototype.updateDisplay = function(nUpdate)
* LEDs are considered cheap, register displays are not. So we'll skip the latter if this
* is a periodic update AND our periodic update counter hasn't reached the periodic update limit.
*/
if (!(nUpdate > 0 && (this.nPeriodicCount += nUpdate) < this.nPeriodicLimit)) {
if (nUpdate <= 0 || (this.nDisplayCount += nUpdate) >= this.nDisplayLimit) {
for (var i = 0; i < this.cpu.regsGen.length; i++) {
this.displayValue('R'+i, this.cpu.regsGen[i]);
}
@ -995,7 +995,7 @@ PanelPDP11.prototype.updateDisplay = function(nUpdate)
this.displayValue("ZF", (regPSW & PDP11.PSW.ZF)? 1 : 0, 1);
this.displayValue("VF", (regPSW & PDP11.PSW.VF)? 1 : 0, 1);
this.displayValue("CF", (regPSW & PDP11.PSW.CF)? 1 : 0, 1);
this.nPeriodicCount = 0;
this.nDisplayCount = 0;
}
/*