* Add udiv_32_16
* Apply udiv_32_16() where possible
* Convert udiv_32_16 to assembler
It's worth 20 loop/s
* Remove unused functions
* Remove degreesPeruSx2048 - unused
* Remove angleToTime - replace with direct calls
1. Drop angleToTime()
It's slow, only partially implemented and adds zero value
(and has MISRA violations)
2. Consistent function naming
3. Doxygen
* triggerPri_Nissan360 shouldn't set timePerDegree.
It will be overwritten every loop by doCrankSpeedCalcs()
* Use angleToTimeMicroSecPerDegree() instead of timePerDegree
No loss in performance
Increased injection open/close time accuracy (so unit test values must change)
Can remove timePerDegree global.
* Hide (encapsulate) crank math globals.
* Base all angle to time conversions on decoder computed variables.
This is within 2us of the revolution based method
and is much faster - which is essentially zero percent change.
* Performance: move calculation of degreesPeruSx32768
into decoders.
Remove doCrankSpeedCalcs() - it's doing nothing
at the moment.
* Apply libdivide to triggerSetEndTeeth functions.
Since triggerToothAngle is set once at initialization
time, we can generate the libdivide struct
once and reuse it many times.
* Remove lastToothCalcAdvance - unused
* Replace 16-bit division with shift
* Replace 32-bit divison with 16-bit division
* Avoid 32-bit division; use div100()
* inline percentage()
* Optimize div100()
* MISRA fixes
* Replace magic numbers with #defs
* Replace libdivide structs with inline constants
No perf or memory changes
* Use fixed types for PWM max count variables
* Accurate rounded integer division
* Formalise rounding behavior (DIV_ROUND_CORRECT)
* Apply DIV_ROUND_CORRECT to DIV_ROUND_CLOSEST(),
UDIV_ROUND_CLOSEST(), div100(), div360(),
percentage() & halfPercentage()
* Add, fix & improve unit tests
* Add udiv_32_16_closest()
* Perf: Limit percentage calculations to 16-bits
* MISRA fixes
* Add compare_executiontime() to encapsulate common perf testing code
* Signed to unsigned division
* Convert ignitionLimits() to an inline function.
Slight speed up, probably due to removing
multiple evaluations of macro arguments.
* Split unit tests up.
* udiv_32_16 - check for valid parameters
tx_haggis
Josh Stewart