Difference: FloatingPointUnit (7 vs. 8)

Revision 82022-10-27 - PeterSchmid

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META TOPICPARENT	name="WebHome"

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:

<
<

printf("%f", myFloat)

>
>

printf("%f", myFloat) f. fe. fs.

atof() oder strtof() benutzen?
nur single-precision? (7..8 Dezimalstellen, H7 hat double precision FPU)
kein eigener Stack

Line: 18 to 18

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

Changed:

<
<

f. fe. fs.

>
>

math.h e.g. float cosf (float)

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

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