On Sat, 29 Jun 2019 19:24:18 +0100, Folderol 
declaimed the following:

>
>This really surprises (and disappoints) me. The debian base is capable of all
>sorts of processor optimisations, and the people doing the Pi have the
>advantage of knowing *exactly* what differences there are between models.

 And would have to maintain different downloads/builds confusing
neophytes. They already have to create a build different from pure Debian.
Debian has ARMEL, ARMHF, and 64-bit. The ARMHF is for devices for v7 ARM
architecture and a hardware floating point (VFP3, as I recall) -- but
Raspbian isn't the exact same...

https://wiki.debian.org/ArmPorts
"""
Raspbian - Uses the hard-float version of the "new" ABI (EABI) like Debian
armhf but targets v6 rather than v7. Currently tracks Debian jessie and
stretch. Primarily but not exclusively targeted at the Raspberry Pi. GNU
Triplet: arm-linux-gnueabihf
"""

ARM v6 has a different...

https://en.wikipedia.org/wiki/ARM_architecture
"""
VFPv2
    An optional extension to the ARM instruction set in the ARMv5TE,
ARMv5TEJ and ARMv6 architectures. VFPv2 has 16 64-bit FPU registers.

VFPv3 or VFPv3-D32
    Implemented on most Cortex-A8 and A9 ARMv7 processors. It is backwards
compatible with VFPv2, except that it cannot trap floating-point
exceptions. VFPv3 has 32 64-bit FPU registers as standard, adds VCVT
instructions to convert between scalar, float and double, adds immediate
mode to VMOV such that constants can be loaded into FPU registers.

VFPv3-D16
    As above, but with only 16 64-bit FPU registers. Implemented on
Cortex-R4 and R5 processors and the Tegra 2 (Cortex-A9).
"""


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