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v1.20.0: Limited stepping support and a couple signed/unsigned division fixes

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This commit is contained in:
Jeff Parsons 2015-10-31 08:31:31 -07:00
commit dc8baec9f0
7 changed files with 2266 additions and 2224 deletions
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6
modules/pcjs/lib/x86ops.js
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@ -2955,7 +2955,7 @@ X86.opSTOSb = function()
* TODO: Extend this errata to STOSW, as well as MOVSB, MOVSW, INSB, and INSW. Also, scope out the
* extent to which this errara also existed on earlier steppings.
*/
if (this.stepping == X86.STEPPING_80386_B1) {
if (this.stepping >= X86.STEPPING_80386_A0 && this.stepping <= X86.STEPPING_80386_B1) {
if (!(this.opPrefixes & X86.OPFLAG.ADDRSIZE) != (this.getByte(this.regLIP) != X86.OPCODE.AS)) {
maskAddr ^= (0xffff0000|0);
}
@ -4169,9 +4169,7 @@ X86.opGRP3b = function()
{
this.fMDSet = false;
this.aOpModGrpByte[this.getIPByte()].call(this, X86.aOpGrp3b, X86.fnSRCNone);
if (this.fMDSet) {
this.regEAX = (this.regEAX & ~this.maskData) | (this.regMDLo & this.maskData);
}
if (this.fMDSet) this.regEAX = (this.regEAX & ~this.maskData) | (this.regMDLo & this.maskData);
};
/**