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Fix timing of asm-based delay implementation #312

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merged 1 commit into from
Jan 7, 2021
Merged

Fix timing of asm-based delay implementation #312

merged 1 commit into from
Jan 7, 2021

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jonas-schievink
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Should fix #236

I've also moved the cycle adjustment into the assembly implementation, since it seems more appropriate there (and this will be useful if we make cortex-m-asm its own crate).

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@rust-highfive rust-highfive added S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. T-cortex-m labels Jan 7, 2021
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LGTM, thanks!

bors merge

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bors bot commented Jan 7, 2021

Build succeeded:

@bors bors bot merged commit 86cd463 into rust-embedded:master Jan 7, 2021
@jonas-schievink jonas-schievink deleted the fix-delay branch January 7, 2021 17:48
@adamgreig adamgreig mentioned this pull request Jan 25, 2021
bors bot added a commit that referenced this pull request Jan 25, 2021
320: Prepare for v0.7.1 r=therealprof a=adamgreig

Includes:

* Deprecate msp::write #297
* New syscall and bootstrap ASM #299 
* More compiler fences #311 
* asm::delay timing fix #312 
* asm::delay clobber fix #317 
* LTO for ASM fix #318 

Doesn't include anything to help with #304 which might be nice to fix but can come in 0.7.2 and might need some time to think about.

Co-authored-by: Adam Greig <adam@adamgreig.com>
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cortex_m::asm::delay is wrong on anything more complex than an M4
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