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More 80286 testing

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This commit is contained in:
Jeff Parsons 2015-05-15 09:08:42 -07:00 • committed by jeffpar
commit a28fa95d25
25 changed files with 107 additions and 36 deletions
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7
modules/pcjs/lib/x86func.js
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@ -1311,13 +1311,16 @@ X86.fnLAR = function LAR(dst, src)
* TODO: This instruction's 80286 documentation does not discuss conforming code segments; determine
* if we need a special check for them.
*/
this.clearZF();
if (this.segVER.load(src, true) !== X86.ADDR_INVALID) {
if (this.segVER.dpl >= this.segCS.cpl && this.segVER.dpl >= (src & X86.SEL.RPL)) {
this.setZF();
return this.segVER.acc & X86.DESC.ACC.MASK;
dst = this.segVER.acc & ~X86.DESC.ACC.BASE1623;
if (this.dataSize > 2) {
dst |= ((this.segVER.ext & ~X86.DESC.EXT.BASE2431) << 16);
}
}
}
this.clearZF();
return dst;
};