This is the main top-level directory. The four directories here are:

bin:    Directory where the following binaries are installed. 
            - dlxsim (source is in dlxsim)
            - dlxcc  |
            - cpp    |  source for all of these is in gcc.
            - cc1    |

dlxsim: Source code for dlxsim, the DLX simulator. 
        It automatically installs the dlxsim in the ./bin directory.
        Just go into this directory, and type make. 

gcc:    Source code for the C-compiler, dlxcc. This is based on 
        gcc, the GNU C Compiler version 1.37.1.
        Go into this directory, and do the following:
            % config.gcc dlx
            % make
        This will create dlxcc, cpp, and cc1 in the current directory.
        dlxcc must be executed with the option -B<dir>, where <dir>
        contains the executables cpp and cc1. 
            % make install
        This will install the binaries
            dlxcc in /usr/local/bin, and
            cpp, and cc1 in /usr/local/lib.

test:   Contains some small test C programs for DLX. 
