seminaries/hello-apo: Multi-ISA Hello World example for Computer Architectures

The build supports native run as well as static builds for multiple
architectures supported by GNU/Linux system which can be run
on corresponding target system and or by user-space QEMU
emulation under GNU/Linux.

riscv and mips targest use special local minimal low level
system mapping library for NewLib libc which allows to run
these minimal binaries not only on apropriate GNU/Linux
systems but even under QtRvSim and QtMips emulators

  https://comparch.edu.cvut.cz/



Signed-off-by: Pavel Pisa <pisa@cmp.felk.cvut.cz>