Question: Use two words to represent the Move instruction of Problem. The first word contains the opcode, address modifiers and the address of A and the second word contains the address modifiers and the address of B (the opcode field in this word is not used). Write the micro program.
Problem: Write the micro program to implement the following Move multiple words instruction:
MOV A,B
which moves N words from memory locations starting at A to those at B. The value of N is specified in the Accumulator. Assume that A and B are represented as 4-bit fields in the 8-bit operand field of the instruction, and indexing and indirecting are not allowed. What is the limitation of this instruction?