Difference: FloatingPointUnit (6 vs. 7)

Revision 72022-10-27 - PeterSchmid

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Floating Point Unit

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https://forth-standard.org/proposals/recognizer#contribution-142
https://de.wikipedia.org/wiki/IEEE_754
https://interrupt.memfault.com/blog/cortex-m-rtos-context-switching ARM Cortex-M RTOS Context Switching

Changed:

<
<

atof() benutzen?

>
>

printf("%f", myFloat)
atof() oder strtof() benutzen?

nur single-precision? (7..8 Dezimalstellen, H7 hat double precision FPU)
kein eigener Stack
>float wo?

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auf float in ISR verzichten
_FPU_USED
AN4044 Application note, Foating point unit demonstration on STM32 microcontrollers

Added:

>
>

f. fe. fs.

>float in Gforth engine/support.c verwendet strtod() (strtof() for single precision)

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