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Improved segment compatibility across mode changes

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This commit is contained in:
Jeff Parsons 2015-05-06 19:48:26 -07:00 • committed by jeffpar
commit df838b8f86
3 changed files with 79 additions and 59 deletions
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14
modules/pcjs/lib/x86cpu.js
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@ -1581,17 +1581,17 @@ X86CPU.prototype.setProtMode = function(fProt)
if (fProt === undefined) {
fProt = !!(this.regCR0 & X86.CR0.MSW.PE);
}
if (!fProt != !(this.regCR0 & X86.CR0.MSW.PE)) {
if (!fProt != !(this.regCR0 & X86.CR0.MSW.PE) && this.messageEnabled()) {
this.printMessage("CPU switching to " + (fProt? "protected" : "real") + "-mode", this.bitsMessage, true);
}
this.aOpGrp6 = (fProt? X86.aOpGrp6Prot : X86.aOpGrp6Real);
this.segCS.updateMode(fProt);
this.segDS.updateMode(fProt);
this.segSS.updateMode(fProt);
this.segES.updateMode(fProt);
this.segCS.updateMode();
this.segDS.updateMode();
this.segSS.updateMode();
this.segES.updateMode();
if (I386 && this.model >= X86.MODEL_80386) {
this.segFS.updateMode(fProt);
this.segGS.updateMode(fProt);
this.segFS.updateMode();
this.segGS.updateMode();
this.resetSizes();
}
};