From The Free On-line Dictionary of Computing (30 December 2018) :
dsp56k-gcc
Motorola's port of gcc version 1.37.1 to the Motorola
DSP56000.
Finland
ftp://nic.funet.fi/pub/ham/dsp/dsp56k-tools/dsp56k-gcc.tar.Z)">(ftp://nic.funet.fi/pub/ham/dsp/dsp56k-tools/dsp56k-gcc.tar.Z).
Australia
ftp://evans.ee.adfa.oz.au/pub/micros/56k/g56k.tar.Z)">(ftp://evans.ee.adfa.oz.au/pub/micros/56k/g56k.tar.Z).