Retro/pcjs
Watch
1
0
Fork
You've already forked pcjs
 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

Fixed the frequency of PDP-11 display updates

Browse source
This commit is contained in:
Jeff 2016-11-07 18:30:33 -08:00 • committed by Jeff Parsons
commit a88e2d7b39
7 changed files with 274 additions and 255 deletions
Download patch file Download diff file Expand all files Collapse all files

16
modules/pdp11/lib/panel.js
View file

@ -836,9 +836,7 @@ PanelPDP11.prototype.advanceAddr = function()
var inc = fGenRegs? 1 : 2;
var mask = fGenRegs? 0xf : this.bus.nBusMask;
if (!this.getSwitch(PanelPDP11.SWITCH.STEP)) inc = -inc;
this.regAddr = (this.regAddr & ~mask) | ((this.regAddr + inc) & mask);
this.setLEDArray("A", this.regAddr, 22);
return this.regAddr;
return this.setAddr((this.regAddr & ~mask) | ((this.regAddr + inc) & mask));
};
/**
@ -943,7 +941,9 @@ PanelPDP11.prototype.stop = function(ms, nCycles)
PanelPDP11.prototype.updateDisplay = function(nUpdate)
{
if (this.cLiveRegs) {
if (nUpdate < 0 || !this.cpu.isRunning() || this.fDisplayLiveRegs) {
var fRunning = this.cpu.isRunning();
if (nUpdate < 0 || !fRunning || this.fDisplayLiveRegs) {
/*
* We arbitrarily separate the display elements into two categories: cheap and expensive.
*
@ -963,8 +963,12 @@ PanelPDP11.prototype.updateDisplay = function(nUpdate)
this.nPeriodicCount = 0;
}
this.setLEDArray("D", this.regData, 16);
this.setLEDArray("A", this.regAddr, 22);
/*
* Update the ADDRESS and DATA LEDs by setting their values, which may or may not have changed....
*/
this.setAddr(nUpdate > 0 && fRunning? this.cpu.getPC() : this.regAddr);
this.setData(this.regData);
/*
* Set bit to 1 (22-bit), 2 (18-bit), or 4 (16-bit)
*/