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Added timer support to the PCx86 SerialPort component, so that we can honor the programmed baud rate now

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Jeff Parsons 2017-08-23 10:49:35 -07:00 • committed by Jeff Parsons
commit 157319a355
9 changed files with 754 additions and 669 deletions
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9
modules/pcx86/lib/cpu.js
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@ -893,11 +893,12 @@ class CPU extends Component {
* value (in milliseconds) to have the timer fire automatically at regular intervals. There is currently
* no removeTimer() because these are generally used for the entire lifetime of a component.
*
* Internally, each timer entry is a preallocated Array with three entries:
* Internally, each timer entry is a preallocated Array with the following entries:
*
* [0]: countdown value, in cycles
* [1]: automatic setTimer value, if any, in milliseconds
* [2]: callback function
* [0]: timer ID
* [1]: countdown value, in cycles
* [2]: automatic setTimer value, if any, in milliseconds
* [3]: callback function
*
* A timer is initially dormant; dormant timers have a countdown value of -1 (although any negative number
* will suffice) and active timers have a non-negative value.