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Prevent display updates until DC011 starts generating LBAs (Line Buffer Addresses)

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This commit is contained in:
Jeff Parsons 2016-08-02 17:06:13 -07:00 • committed by Jeff Parsons
commit 5f048a0688
3 changed files with 103 additions and 12 deletions
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16
modules/pc8080/lib/video.js
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@ -392,12 +392,10 @@ Video.prototype.initBus = function(cmp, bus, cpu, dbg)
this.bus = bus;
this.cpu = cpu;
this.dbg = dbg;
this.chipset = cmp.getMachineComponent("ChipSet");
if (!this.nFormat) {
this.chipset = cmp.getMachineComponent("ChipSet");
if (this.chipset && this.chipset.model == ChipSet.SI1978.MODEL) {
this.nFormat = Video.FORMAT.SI1978;
}
if (!this.nFormat && this.chipset && this.chipset.model == ChipSet.SI1978.MODEL) {
this.nFormat = Video.FORMAT.SI1978;
}
/*
@ -655,6 +653,10 @@ Video.prototype.powerUp = function(data, fRepower)
this.bus.setByteDirect(addr++, Video.VT100.LINETERM);
addrNext = addr;
}
/*
* NOTE: By calling updateVT100() directly, we are bypassing the normal checks (eg, isVideoEnabled())
*/
this.updateVT100();
}
return true;
};
@ -1088,7 +1090,9 @@ Video.prototype.updateScreen = function(n)
this.printMessage("updateScreen(" + n + "): clean=" + fClean + ", update=" + fUpdate + ", cycles=" + nCycles + ", delta=" + nCyclesDelta);
}
if (!fUpdate) return;
if (!fUpdate || this.chipset && !this.chipset.isVideoEnabled()) {
return;
}
if (this.cxCell > 1) {
this.updateScreenText();