In SX Microcontrollers, SX/B Compiler and SX-Key Tool, Peter Van der Zee wrote:

Hi Gang;

I've been lurking around the Propeller forum for a while now, and spending time learning the assembly stuff.

@Loopy... thanks for the kudos on the SX RTOS. But guess what? I now have one almost ready to introduce for the Propeller.

Each (assembler) cog runs its own muti-tasking kernel, so multiple threads can operate "simultaneously" in each cog of the propeller, each independent of each other. On top of that, it should be a cinch for Bean to incorporate it into SX/B for the Propeller. This could finally eliminate that horrid "PAUSE" instruction I hated so much. Istead of Pause, the basic instruction simply releases itself to the kernel (scheduler), and the next task picks up where it left off. This will permit non-blocking communications as well as simultaneous TX and RX....... quite simple really.

I am guessing at this point that practically one might have up to 8 (in simple cases perhaps 16) tasks registered in one cog operating and timing independently. Could offer quite a light show if you multiplied that by six or seven cogs.....

Good things coming soon.

So, while I will still need to order a few thousand SXes for products I am now building, I expect any new stuff I do will be with the Prop, especially when the RTOS will be available.

At present my major complaint is the Prop's speed and the hokey "indirect addressing" scheme. That is a real lame approach, albeit the self  modifying code is great. The rest is pretty good, and some of it phenomonal. I think you'll love it once you embrace it.

Cheers,

Peter (pjv)

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