* Write user test programs.

* Write, test join.

* Write, test user programs.

* Figure out PD/PT management API.
  - We should document what's in mmu.h.  

* Write, test VM.

* Implement `jitter'.

* Test list, hash ADTs.

* Compile and install gdb, dbg versions.
  - Test gdb version.

* Write "tour".

* Get rid of 16550a.h header.

----------------------------------------------------------------------

* Cygwin support:
  - PE linker scripts?  Doesn't seem to support ELF ones.
  - .S files need _ prefixes on symbols.

* Filesystem dumps should include filehdrs?

* Cross-compile notes:

cd /tmp
bzcat ~/binutils-2.15.tar.bz2 | tar x
tar xzf newlib-1.12.0.tar.gz
tar xzf gcc-core-3.3.2.tar.gz
tar xzf gdb-6.2.1.tar.gz

PATH=$PATH:/usr/class/cs140/i386/bin

cd /tmp/binutils-2.15
mkdir i386
cd i386
../configure --target=i386-elf --prefix=/usr/class/cs140/i386
make LDFLAGS=-lintl
make install

cd /tmp/gcc-core-3.3.2.tar.gz
mkdir i386
cd i386
../configure --target=i386-elf --prefix=/usr/class/cs140/i386 --with-gnu-as --with-as=/usr/class/cs140/i386/bin/i386-elf-as --with-gnu-ld --with-ld=/usr/class/cs140/i386/bin/i386-elf-ld --with-headers=/tmp/newlib-1.12.0/newlib/libc/include --with-newlib
make
make install

cd /tmp/gdb-6.2.1
mkdir i386
cd i386
../configure --target=i386-elf --prefix=/usr/class/cs140/i386 --disable-tui
make
make install