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Flag conversion complete

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This commit is contained in:
Jeff Parsons 2015-03-16 17:16:40 -07:00 • committed by jeffpar
commit 56f362f8ac
8 changed files with 2817 additions and 3175 deletions
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199
modules/pcjs/lib/x86cpu.js
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@ -1830,18 +1830,14 @@ X86CPU.prototype.getCarry = function()
*/
X86CPU.prototype.getCF = function()
{
var flag = (this.resultZeroCarry & this.resultSize)? X86.PS.CF : 0;
if (I386) {
if (this.resultType & X86.RESULT.CF) {
this.resultFlags &= ~X86.PS.CF;
if ((this.resultDst ^ ((this.resultDst ^ this.resultSrc) & (this.resultSrc ^ this.resultArith))) & (this.resultType & X86.RESULT.TYPE)) {
this.resultFlags |= X86.PS.CF;
}
this.resultType &= ~X86.RESULT.CF;
if (this.resultType & X86.RESULT.CF) {
this.resultFlags &= ~X86.PS.CF;
if ((this.resultDst ^ ((this.resultDst ^ this.resultSrc) & (this.resultSrc ^ this.resultArith))) & (this.resultType & X86.RESULT.TYPE)) {
this.resultFlags |= X86.PS.CF;
}
return this.resultFlags & X86.PS.CF;
this.resultType &= ~X86.RESULT.CF;
}
return flag;
return this.resultFlags & X86.PS.CF;
};
/**
@ -1871,19 +1867,14 @@ X86CPU.prototype.getCF = function()
*/
X86CPU.prototype.getPF = function()
{
var flag = this.resultParitySign;
flag = ((0x6996 >> ((flag ^ (flag >> 4)) & 0xf)) & 1)? 0 : X86.PS.PF;
if (I386) {
if (this.resultType & X86.RESULT.PF) {
this.resultFlags &= ~X86.PS.PF;
if ((0x9669 >> ((this.resultLogic ^ (this.resultLogic >> 4)) & 0xf)) & 1) {
this.resultFlags |= X86.PS.PF;
}
this.resultType &= ~X86.RESULT.PF;
if (this.resultType & X86.RESULT.PF) {
this.resultFlags &= ~X86.PS.PF;
if ((0x9669 >> ((this.resultLogic ^ (this.resultLogic >> 4)) & 0xf)) & 1) {
this.resultFlags |= X86.PS.PF;
}
return this.resultFlags & X86.PS.PF;
this.resultType &= ~X86.RESULT.PF;
}
return flag;
return this.resultFlags & X86.PS.PF;
};
/**
@ -1914,18 +1905,14 @@ X86CPU.prototype.getPF = function()
*/
X86CPU.prototype.getAF = function()
{
var flag = ((this.resultParitySign ^ this.resultAuxOverflow) & X86.RESULT.AUXOVF_AF)? X86.PS.AF : 0;
if (I386) {
if (this.resultType & X86.RESULT.AF) {
this.resultFlags &= ~X86.PS.AF;
if ((this.resultArith ^ (this.resultDst ^ this.resultSrc)) & X86.RESULT.AUXOVF_AF) {
this.resultFlags |= X86.PS.AF;
}
this.resultType &= ~X86.RESULT.AF;
if (this.resultType & X86.RESULT.AF) {
this.resultFlags &= ~X86.PS.AF;
if ((this.resultArith ^ (this.resultDst ^ this.resultSrc)) & X86.RESULT.AUXOVF_AF) {
this.resultFlags |= X86.PS.AF;
}
return this.resultFlags & X86.PS.AF;
this.resultType &= ~X86.RESULT.AF;
}
return flag;
return this.resultFlags & X86.PS.AF;
};
/**
@ -1936,18 +1923,14 @@ X86CPU.prototype.getAF = function()
*/
X86CPU.prototype.getZF = function()
{
var flag = (this.resultZeroCarry & (this.resultSize - 1))? 0 : X86.PS.ZF;
if (I386) {
if (this.resultType & X86.RESULT.ZF) {
this.resultFlags &= ~X86.PS.ZF;
if (!(this.resultLogic & (((this.resultType & X86.RESULT.TYPE) - 1) | (this.resultType & X86.RESULT.TYPE)))) {
this.resultFlags |= X86.PS.ZF;
}
this.resultType &= ~X86.RESULT.ZF;
if (this.resultType & X86.RESULT.ZF) {
this.resultFlags &= ~X86.PS.ZF;
if (!(this.resultLogic & (((this.resultType & X86.RESULT.TYPE) - 1) | (this.resultType & X86.RESULT.TYPE)))) {
this.resultFlags |= X86.PS.ZF;
}
return this.resultFlags & X86.PS.ZF;
this.resultType &= ~X86.RESULT.ZF;
}
return flag;
return this.resultFlags & X86.PS.ZF;
};
/**
@ -1958,18 +1941,14 @@ X86CPU.prototype.getZF = function()
*/
X86CPU.prototype.getSF = function()
{
var flag = (this.resultParitySign & (this.resultSize >> 1))? X86.PS.SF : 0;
if (I386) {
if (this.resultType & X86.RESULT.SF) {
this.resultFlags &= ~X86.PS.SF;
if (this.resultLogic & (this.resultType & X86.RESULT.TYPE)) {
this.resultFlags |= X86.PS.SF;
}
this.resultType &= ~X86.RESULT.SF;
if (this.resultType & X86.RESULT.SF) {
this.resultFlags &= ~X86.PS.SF;
if (this.resultLogic & (this.resultType & X86.RESULT.TYPE)) {
this.resultFlags |= X86.PS.SF;
}
return this.resultFlags & X86.PS.SF;
this.resultType &= ~X86.RESULT.SF;
}
return flag;
return this.resultFlags & X86.PS.SF;
};
/**
@ -2004,18 +1983,14 @@ X86CPU.prototype.getSF = function()
*/
X86CPU.prototype.getOF = function()
{
var flag = ((this.resultParitySign ^ this.resultAuxOverflow ^ (this.resultParitySign >> 1)) & (this.resultSize >> 1))? X86.PS.OF : 0;
if (I386) {
if (this.resultType & X86.RESULT.OF) {
this.resultFlags &= ~X86.PS.OF;
if (((this.resultDst ^ this.resultArith) & (this.resultSrc ^ this.resultArith)) & (this.resultType & X86.RESULT.TYPE)) {
this.resultFlags |= X86.PS.OF;
}
this.resultType &= ~X86.RESULT.OF;
if (this.resultType & X86.RESULT.OF) {
this.resultFlags &= ~X86.PS.OF;
if (((this.resultDst ^ this.resultArith) & (this.resultSrc ^ this.resultArith)) & (this.resultType & X86.RESULT.TYPE)) {
this.resultFlags |= X86.PS.OF;
}
return this.resultFlags & X86.PS.OF;
this.resultType &= ~X86.RESULT.OF;
}
return flag;
return this.resultFlags & X86.PS.OF;
};
/**
@ -2058,11 +2033,8 @@ X86CPU.prototype.getDF = function()
*/
X86CPU.prototype.clearCF = function()
{
this.resultZeroCarry &= ~this.resultSize;
if (I386) {
this.resultType &= ~X86.RESULT.CF;
this.resultFlags &= ~X86.PS.CF;
}
this.resultType &= ~X86.RESULT.CF;
this.resultFlags &= ~X86.PS.CF;
};
/**
@ -2072,11 +2044,8 @@ X86CPU.prototype.clearCF = function()
*/
X86CPU.prototype.clearPF = function()
{
if (this.getPF()) this.resultParitySign ^= 0x1;
if (I386) {
this.resultType &= ~X86.RESULT.PF;
this.resultFlags &= ~X86.PS.PF;
}
this.resultType &= ~X86.RESULT.PF;
this.resultFlags &= ~X86.PS.PF;
};
/**
@ -2086,11 +2055,8 @@ X86CPU.prototype.clearPF = function()
*/
X86CPU.prototype.clearAF = function()
{
this.resultAuxOverflow = (this.resultParitySign & X86.RESULT.AUXOVF_AF) | (this.resultAuxOverflow & ~X86.RESULT.AUXOVF_AF);
if (I386) {
this.resultType &= ~X86.RESULT.AF;
this.resultFlags &= ~X86.PS.AF;
}
this.resultType &= ~X86.RESULT.AF;
this.resultFlags &= ~X86.PS.AF;
};
/**
@ -2100,11 +2066,8 @@ X86CPU.prototype.clearAF = function()
*/
X86CPU.prototype.clearZF = function()
{
this.resultZeroCarry |= (this.resultSize - 1);
if (I386) {
this.resultType &= ~X86.RESULT.ZF;
this.resultFlags &= ~X86.PS.ZF;
}
this.resultType &= ~X86.RESULT.ZF;
this.resultFlags &= ~X86.PS.ZF;
};
/**
@ -2114,14 +2077,8 @@ X86CPU.prototype.clearZF = function()
*/
X86CPU.prototype.clearSF = function()
{
if (this.getSF()) {
this.resultParitySign ^= (this.resultSize >> 1) | (this.resultSize >> 2);
this.resultAuxOverflow ^= X86.RESULT.AUXOVF_OF;
}
if (I386) {
this.resultType &= ~X86.RESULT.SF;
this.resultFlags &= ~X86.PS.SF;
}
this.resultType &= ~X86.RESULT.SF;
this.resultFlags &= ~X86.PS.SF;
};
/**
@ -2151,12 +2108,8 @@ X86CPU.prototype.clearDF = function()
*/
X86CPU.prototype.clearOF = function()
{
this.resultParitySign &= ~this.resultSize;
this.resultAuxOverflow = (this.resultParitySign & X86.RESULT.AUXOVF_OF) | (this.resultAuxOverflow & ~X86.RESULT.AUXOVF_OF);
if (I386) {
this.resultType &= ~X86.RESULT.OF;
this.resultFlags &= ~X86.PS.OF;
}
this.resultType &= ~X86.RESULT.OF;
this.resultFlags &= ~X86.PS.OF;
};
/**
@ -2166,11 +2119,8 @@ X86CPU.prototype.clearOF = function()
*/
X86CPU.prototype.setCF = function()
{
this.resultZeroCarry |= this.resultSize;
if (I386) {
this.resultType &= ~X86.RESULT.CF;
this.resultFlags |= X86.PS.CF;
}
this.resultType &= ~X86.RESULT.CF;
this.resultFlags |= X86.PS.CF;
};
/**
@ -2180,11 +2130,8 @@ X86CPU.prototype.setCF = function()
*/
X86CPU.prototype.setPF = function()
{
if ((0x6996 >> ((this.resultParitySign ^ (this.resultParitySign >> 4)) & 0xf)) & 1) this.resultParitySign ^= 0x1;
if (I386) {
this.resultType &= ~X86.RESULT.PF;
this.resultFlags |= X86.PS.PF;
}
this.resultType &= ~X86.RESULT.PF;
this.resultFlags |= X86.PS.PF;
};
/**
@ -2194,11 +2141,8 @@ X86CPU.prototype.setPF = function()
*/
X86CPU.prototype.setAF = function()
{
this.resultAuxOverflow = ~(this.resultParitySign & X86.RESULT.AUXOVF_AF) & X86.RESULT.AUXOVF_AF | (this.resultAuxOverflow & ~X86.RESULT.AUXOVF_AF);
if (I386) {
this.resultType &= ~X86.RESULT.AF;
this.resultFlags |= X86.PS.AF;
}
this.resultType &= ~X86.RESULT.AF;
this.resultFlags |= X86.PS.AF;
};
/**
@ -2208,11 +2152,8 @@ X86CPU.prototype.setAF = function()
*/
X86CPU.prototype.setZF = function()
{
this.resultZeroCarry &= ~(this.resultSize - 1);
if (I386) {
this.resultType &= ~X86.RESULT.ZF;
this.resultFlags |= X86.PS.ZF;
}
this.resultType &= ~X86.RESULT.ZF;
this.resultFlags |= X86.PS.ZF;
};
/**
@ -2222,14 +2163,8 @@ X86CPU.prototype.setZF = function()
*/
X86CPU.prototype.setSF = function()
{
if (!(this.resultParitySign & (this.resultSize >> 1))) {
this.resultParitySign ^= (this.resultSize >> 1) | (this.resultSize >> 2);
this.resultAuxOverflow ^= X86.RESULT.AUXOVF_OF;
}
if (I386) {
this.resultType &= ~X86.RESULT.SF;
this.resultFlags |= X86.PS.SF;
}
this.resultType &= ~X86.RESULT.SF;
this.resultFlags |= X86.PS.SF;
};
/**
@ -2259,12 +2194,8 @@ X86CPU.prototype.setDF = function()
*/
X86CPU.prototype.setOF = function()
{
if (I386) {
this.resultType &= ~X86.RESULT.OF;
this.resultFlags |= X86.PS.OF;
}
this.resultParitySign |= this.resultSize;
this.resultAuxOverflow = (this.resultParitySign & X86.RESULT.AUXOVF_OF) | (this.resultAuxOverflow & ~X86.RESULT.AUXOVF_OF);
this.resultType &= ~X86.RESULT.OF;
this.resultFlags |= X86.PS.OF;
};
/**
@ -2317,16 +2248,6 @@ X86CPU.prototype.setPS = function(regPS, cpl)
this.resultType = X86.RESULT.BYTE;
this.resultFlags = regPS & (X86.PS.CF | X86.PS.PF | X86.PS.AF | X86.PS.ZF | X86.PS.SF | X86.PS.OF);
}
if (OLDFLAGS) {
this.resultSize = X86.RESULT.SIZE_BYTE;
this.resultZeroCarry = this.resultParitySign = this.resultAuxOverflow = 0;
if (regPS & X86.PS.CF) this.setCF();
if (!(regPS & X86.PS.PF)) this.resultParitySign |= 0x1;
if (regPS & X86.PS.AF) this.resultAuxOverflow |= X86.RESULT.AUXOVF_AF;
if (!(regPS & X86.PS.ZF)) this.clearZF();
if (regPS & X86.PS.SF) this.setSF();
if (regPS & X86.PS.OF) this.setOF();
}
/*
* OS/2 1.0 discriminates between an 80286 and an 80386 based on whether an IRET in real-mode that