Hmmm....read somewhat more through the documentation.
10.2.3.6 Supervisor/User Stack Pointers
To isolate supervisor and user modes, CF4e implements two A7 register stack pointers, one
for supervisor mode and one for user mode. Two former M680x0 privileged instructions to
load and store the user stack pointer are restored in the instruction set architecture.
and
The FPU programming model is like that in the
MC68060 microprocessor. {but is 64-bit instead of 80-bit. I don't know what that means when you want to run MC68K code}