circuitpython/docs/reference/asm_thumb2_misc.rst
Damien George 2110dc5a6d docs: Add reference for Thumb2 inline assembler.
Thanks to Peter Hinch for contributing this.
2015-06-25 00:21:35 +01:00

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Miscellaneous instructions
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* nop() ``pass`` no operation.
* wfi() Suspend execution in a low power state until an interrupt occurs.
* cpsid(flags) set the Priority Mask Register - disable interrupts.
* cpsie(flags) clear the Priority Mask Register - enable interrupts.
Currently the ``cpsie()`` and ``cpsid()`` functions are partially implemented.
They require but ignore the flags argument and serve as a means of enabling and disabling interrupts.