move boot_aplx.s stack to bottom half of DTCM#139

Draft

lplana wants to merge 9 commits intomasterfrom move_boot_aplx_stack

+40-80

Commits on Sep 14, 2020

updated boot_aplx.s to move stack to bottom half of DTCM.
Luis A. Plana
committed

Commits on Sep 16, 2020

for clarity, used decimal instead of hex in a constant value.
Luis A. Plana
committed
updated outdated comments in README file.
Luis A. Plana
committed

Commits on Sep 17, 2020

Merge branch 'master' into move_boot_aplx_stack
Luis A. Plana
committed
fixed README.
Luis A. Plana
committed
avoid use of 'adr' pseudoinstruction with register sp.
Luis A. Plana
committed

Commits on Sep 20, 2020

created separate boot_aplx.bin for scamp and applications.
Luis A. Plana
committed

Commits on Sep 23, 2020

- got rid of 'boot.lnk', use 'scamp-3.lnk' instead.
Luis A. Plana
committed

Commits on Sep 24, 2020

removed Makefile variable SCAMP. No longer needed.
Luis A. Plana
committed