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v1.19.5: Finally bit the bullet and throw JavaScript exceptions for improved CPU exception handling

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This commit is contained in:
Jeff Parsons 2015-09-10 17:59:46 -07:00
commit e207cabc0a
9 changed files with 991 additions and 915 deletions
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8
modules/pcjs/lib/cpu.js
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@ -1010,7 +1010,13 @@ CPU.prototype.runCPU = function(fOnClick)
* nCyclesPerBurst is how many cycles we WANT to run on each iteration of stepCPU(), but it may run
* significantly less (or slightly more, since we can't execute partial instructions).
*/
this.stepCPU(nCyclesPerBurst);
try {
this.stepCPU(nCyclesPerBurst);
}
catch(exception) {
if (typeof exception != "number") throw exception;
if (MAXDEBUG) this.println("CPU exception " + str.toHexByte(exception));
}
/*
* nBurstCycles, less any remaining nStepCycles, is how many cycles stepCPU() ACTUALLY ran (nCycles).