FreeRTOS Real Time Kernel (RTOS) / Feature Requests / #27 More efficient code for GCC ARM CM3 interrupts (un)masking

#27 More efficient code for GCC ARM CM3 interrupts (un)masking

Status: open

Owner: nobody

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Priority: 5

Updated: 2009-03-24

Created: 2009-03-24

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As described in https://sourceforge.net/forum/message.php?msg_id=6914200 it is possible to make the portSET_INTERRUPT_MASK() and portCLEAR_INTERRUPT_MASK() macros of the GCC ARM CM3 port more efficient by letting the compiler choose a register to spill or to reuse when it is known to already contain the correct value.

Discussion

Anonymous - 2009-03-31

Proposed patch

gcc-cm3-interrupt.patch

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Anonymous - 2009-09-29

Is there a reason not to apply it? I've been running with this patch installed for 6 months now, as have my students and my colleagues. No problem so far.

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Anonymous - 2010-03-09

I wonder why it has not been integrated in FreeRTOS yet. All our projects have been using this patch since one year.

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More efficient code for GCC ARM CM3 interrupts (un)masking

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#27 More efficient code for GCC ARM CM3 interrupts (un)masking

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