Optional high-memory bootloader#24

Merged

devanlai merged 2 commits intodevanlai:masterfrom

dmsc:optional-hiboot

May 4, 2020

Commits on May 2, 2020

Link with newlib-nano, this is 348 bytes smaller.
dmsc
committed

Commits on May 3, 2020

Implement experimental high-memory bootloader

dmsc
and
devanlai
committed