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Compaq DeskPro 386 ROM BIOS boots UNMODIFIED now

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This commit is contained in:
Jeff Parsons 2015-04-16 17:31:40 -07:00 • committed by jeffpar
commit 1508cd1bf3
12 changed files with 298 additions and 207 deletions
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7
modules/pcjs/lib/bus.js
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@ -476,13 +476,6 @@ Bus.prototype.getA20 = function()
*/
Bus.prototype.setA20 = function(fEnable)
{
/*
* TODO: Until I determine why the Compaq DeskPro 386 ROM is switching to protected-mode
* with the A20 line disabled, resulting in an almost immediate crash, I'm ignoring its requests
* to turn A20 off.
*/
if (I386 && COMPAQ386) fEnable = true;
if (this.nBusWidth > 20) {
var addrMask = (this.busMask & ~0x100000) | (fEnable? 0x100000 : 0);
if (addrMask != this.busMask) {