Passing parameters to a task

[pjc30943]

Why are task parameters prohibited by the compiler? It's nice to use the same task for several events, with its variations caused by parameters. A global would work of course, but...

[dkinzer]

ZBasic was originally designed to be compatible with BasicX and in the latter, task main routines must be defined with no parameters.

We are currently testing a new version of the compiler that allows an arbitrary number of parameters. The VM also had to be updated to support this.

[mikep]

[stevech]

I suspect that dynamically allocated task stacks will also be forthcoming.

I have a ZBasic program that does quasi-dynamic task stack allocation until ZBasic has this as intrinsic. The scheme I use is for a state machine, where each state is a particular ZBasic task/sub(). I could elaborate if there's interest.

I also have a working example of a task to handle the AVR's INT0 and INT1 with the same code. I just callTask() twice to the same code with different stacks. Parameter for each instance of the task is passed in a gobal for now. The task instances copy it to a local variable, freeing up the global.