Add linker magic to ensure 16bit variables aren't repeated in 32bit code.

Add VAR16 macro to enable a variable to be available in both 32bit and
    16bit code.  This reduces the occurrences of "#if MODE16".
Also add ASM16 macro to reduce occurrences of "#if MODE16".
8 files changed
tree: 9ef3bd7318e17dfee2d0d80e608873ce7c4b769e
  1. .gitignore
  2. COPYING
  3. Makefile
  4. README
  5. TODO
  6. src/
  7. tools/