three.card		Programmer's summary of a three-address architecture.
			Notice that this machine has no shift or boolean
			operations.

three.def		Instruction set architecture definition.  Must
			supply this as an argument to IST.

three.mal		Microcode that implements the instruction set
			architecture
           --------------------------
	   assembly language programs
           --------------------------
call.asm		exercises the "call subroutine" and "return"
			operations.
fact.asm		Computes 4!.  Result is stored at location 100.
			This architecture does not have a "multiply" operation.
			Compare the performance to the one-address 
			and two-address machines.
sort.asm		Performs a bubble sort on ten elements, located
			at memory locations 100-109.  Again, compare
			the performance to the one- and two-address machines.
ten.asm			Counts to ten.  Compare the number of lines
			in this version of the program to the one- and
			two-address machines.
