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New skeleton for x86fpu.js

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This commit is contained in:
Jeff Parsons 2015-11-13 18:20:20 -08:00
commit 2b1b62d565
7 changed files with 1440 additions and 167 deletions
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20
modules/pcjs/lib/x86func.js
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@ -946,8 +946,7 @@ X86.fnDIVw = function(dst, src)
X86.fnESC = function(dst, src)
{
if (this.fpu) {
this.fpu.fnFPU(this.bOpcode, this.bModRM, dst, src);
this.stopCPU();
this.fpu.opFPU(this.bOpcode, this.bModRM, dst, src);
}
this.nStepCycles -= (this.regEA === X86.ADDR_INVALID? 2 : 8);
return dst;
@ -3879,6 +3878,23 @@ X86.fnSRCxx = function()
return this.regXX;
};
/**
* fnInterrupt(nIDT, nCycles)
*
* Helper to dispatch external interrupts. nCycles defaults to 11 for the 8086/8088
* if no alternate value is specified.
*
* @this {X86CPU}
* @param {number} nIDT
* @param {number} [nCycles] (number of cycles in addition to the default of nOpCyclesInt)
*/
X86.fnInterrupt = function(nIDT, nCycles)
{
this.nFault = nIDT;
if (nCycles === undefined) nCycles = 11;
X86.fnINT.call(this, nIDT, null, nCycles);
};
/**
* fnTrap(nIDT, nCycles)
*