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Fixed ASRB and RORB instructions, added a new dump command ("ds"), and fixed timer function initialization

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This commit is contained in:
Jeff 2016-11-10 06:10:54 -08:00 • committed by Jeff Parsons
commit eb6bf8a5a5
9 changed files with 434 additions and 408 deletions
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9
modules/pdp11/lib/cpu.js
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@ -959,9 +959,12 @@ CPUPDP11.prototype.setTimer = function(iTimer, ms, fReset)
* We must now confront the following problem: if the CPU is currently executing a burst of cycles,
* the number of cycles it has executed in that burst so far must NOT be charged against the cycle
* timeout we're about to set. The simplest way to resolve that is to immediately call endBurst()
* and bias the above cycle timeout by the number of cycles that the burst executed.
* and bias the cycle timeout by the number of cycles that the burst executed.
*/
this.aTimers[iTimer][0] = nCycles + this.endBurst();
if (this.flags.running) {
nCycles += this.endBurst();
}
this.aTimers[iTimer][0] = nCycles;
}
}
return nCycles;
@ -992,6 +995,7 @@ CPUPDP11.prototype.getBurstCycles = function(nCycles)
{
for (var i = this.aTimers.length - 1; i >= 0; i--) {
var timer = this.aTimers[i];
this.assert(!isNaN(timer[0]));
if (timer[0] < 0) continue;
if (nCycles > timer[0]) {
nCycles = timer[0];
@ -1014,6 +1018,7 @@ CPUPDP11.prototype.updateTimers = function(nCycles)
{
for (var i = this.aTimers.length - 1; i >= 0; i--) {
var timer = this.aTimers[i];
this.assert(!isNaN(timer[0]));
if (timer[0] < 0) continue;
timer[0] -= nCycles;
if (timer[0] <= 0) {