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v1.19.3: More Windows 95-related updates

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This commit is contained in:
Jeff Parsons 2015-09-01 16:19:20 -07:00
commit 1a67c7acbd
33 changed files with 8907 additions and 1741 deletions
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36
modules/pcjs/lib/x86cpu.js
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@ -1635,7 +1635,7 @@ X86CPU.prototype.checkIntNotify = function(nInt)
var aNotify = this.aIntNotify[nInt];
if (aNotify !== undefined) {
for (var i = 0; i < aNotify.length; i++) {
if (!aNotify[i](this.regLIP)) {
if (!aNotify[i](aNotify[i][0], this.regLIP)) {
return false;
}
}
@ -3907,6 +3907,40 @@ X86CPU.prototype.popWord = function()
return w;
};
/**
* pushData(d, size)
*
* @this {X86CPU}
* @param {number} d is the data to push at current SP; SP decreased by size
* @param {number} size is the size of the data to push (must be either 2 or 4)
*/
X86CPU.prototype.pushData = function(d, size)
{
this.regLSP = (this.regLSP - size)|0;
/*
* Properly comparing regLSP to regLSPLimitLow would normally require coercing both to unsigned
* (ie, floating-point) values. But instead, we do a subtraction, (regLSP - regLSPLimitLow), and
* if the result is negative, we need only be concerned if the signs of both numbers are the same
* (ie, the sign of their XOR'ed union is positive).
*/
if (((this.regLSP - this.regLSPLimitLow)|0) < 0 && (this.regLSPLimitLow ^ this.regLSP) >= 0) {
/*
* There's no such thing as an SS fault on the 8086/8088, and I'm assuming that, on newer
* processors, when the stack segment limit is set to the maximum, it's OK for the stack to wrap.
*/
if (this.model <= X86.MODEL_8088 || !this.segSS.fExpDown && this.segSS.limit == this.segSS.maskAddr || this.segSS.fExpDown && !this.segSS.limit) {
this.setSP((this.regLSP - this.segSS.base) & this.segSS.maskAddr);
} else {
X86.fnFault.call(this, X86.EXCEPTION.SS_FAULT, 0);
}
}
if (size == 2) {
this.setShort(this.regLSP, d);
} else {
this.setLong(this.regLSP, d);
}
};
/**
* pushWord(w)
*