Paketti: armv7-support (15.1)

CPU feature checking - require ARMv7

The packages in the isa-support family probe for microprocessor Instruction Set Architecture features such as SSE3. By refusing to install on machines lacking a required feature, they allow ISA requirements to be handled in terms of package dependencies.

This is a mostly dummy package which checks for ARMv7 and refuses to install on unsupported hardware.

ARMv7 (not to be confused with product family ARM7) includes Thumb-2 technology, adding 32-bit instructions into compressed Thumb mode. It is not guaranteed by the architecture baseline, but is available for newer armel machines (including CPUs that support armhf) since the Cortex-A product family, including Cortex-A5, -A7, -A8, -A9, -A12, -A15, and -A17 processors. Boards include the Raspberry Pi 2.

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