xiaoxiang781216 commented on pull request #2061: URL: https://github.com/apache/incubator-nuttx/pull/2061#issuecomment-715316382
> So.. > > Descending-full then implies: > SP ->last write. > push is decrement then store > > Correct? > Yes, it is correct. > Then isn't the changes with SP-X wrong? The value at [SP-X] get overwritten by any push's in the call chain of arm_decodeirq. > The ! at the end will write back the sp - 4 to sp, so the next push will allocate the new location in the next slot. > Or am I seeing this incorrectly? ---------------------------------------------------------------- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: [email protected]
