Transistor CPU by Dieter Mueller
<UL>
<LI><b>mt15_c</b> is a look-ahead carry generator.</LI>
<LI><b>mt15_alu</b> is the ALU bit slice.</LI>
<LI><b>mt15_pla</b> is a PLA-like gate array.</LI>
<LI><b>mt15_n</b> is a board with 9 4-input NAND gates.</LI>
<LI><b>mt15_reg</b> is a register bit slice.</LI>