ALU

[HansenDJ]

8-bit Computation ALU:

• 8-bit Add/Sub
• 8-bit Multiply
• 8-bit Divide
• 8-bit XOR
• 8-bit OR
• 8-bit AND
• 8-bit Compliment
• 8-bit Inc
• 8-bit Dec
• 8-bit Logical Left Shift
• 8-bit Logical Right Shift
• 8-bit Arithmetic Left Shift
• 8-bit Arithmetic Right Shift

16-bit Address ALU:

• 16-bit Add/Sub
• 16-bit Load Effective Address
• 16-bit Inc
• 16-bit Dec

[hyperdriveguy]

The ALU should also include:

• 8-bit and 16-bit Comparator, register inputs or register and immediate with flag changes for outputs
  • Check equal values, store in z
  • Unsigned greater than, store in c
  • Unsigned less than, store in c
  • Signed greater than, store in s
  • Signed less than, store in s

[hyperdriveguy]

15 8-bit operations, 6 16-bit operations