VGA: Simplify scrolling implementation.

Check for nblines==0 in calling function.
Eliminate full screen clearing optimization.
2 files changed
tree: 72514fba89cc830ec328edeea0b09fa0b444fd42
  1. src/
  2. tools/
  3. vgasrc/
  4. .gitignore
  5. COPYING
  6. COPYING.LESSER
  7. Makefile
  8. README
  9. TODO