I have this RPI board.

Hardware : BCM2835 Revision : c03111 Serial : 100000009f7a953c Model : Raspberry Pi 4 Model B Rev 1.1

I want information about Floating point unit(FPU) it has like it supports double precision floating point or not? if yes, what instructions it uses? Could anyone please help?


  • Are you planning to write your own bare metal OS?
    – Milliways
    Commented Aug 12, 2021 at 7:35
  • No, I want to compare FPUs of different architecture.
    – JSE
    Commented Aug 12, 2021 at 8:34
  • 1
    Pi 4 uses BCM2711, not BCM2835. Which one do you really have? Commented Aug 18, 2021 at 7:41

1 Answer 1


You title says RPi m4, a bcm2711 soc with cortexA72 & vfpv4 floating point unit. However your details are bcm2835 soc with cortexA53 & I don't find a reference to a floating point unit for this soc.

I'd be looking for an rpi4b $35 to experiment.

Good luck, morris

  • The question states that he already has a Pi4b. What sort of "experiment" are you suggesting?
    – Chenmunka
    Commented Aug 18, 2021 at 7:51

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