fixed missing COMMON from .bss zeroing, using new toolchain and link
-rw-r--r-- 36 .gdbinit
-rw-r--r-- 99 .gitignore
-rw-r--r-- 2060 Makefile
drwxr-xr-x - doc
-rw-r--r-- 1056 megadrive.ld
drwxr-xr-x - src
drwxr-xr-x - tools
-rw-r--r-- 355 z80.ld