The Simple but Complete Random Access Machine as described in "The (New) Turing Omnibus" book implemented in VHDL. The SCRAM is a 4-bit computer that uses 8-bit words (its registers hold 8 bits). Instructions are encoded with the leading 4 bits being the opcode and the trailing 4 bits the operand. This effectively means a program can't reference more than 4 bits in memory manipulation or arithmetic.
wawesomeNOGUI/SCRAM
The Simple but Complete Random Access Machine as described in "The (New) Turing Omnibus" book implemented in VHDL
C