Next Address Logic: Expensive and Fast Solution

• Using a 30-bit PC:

  • Sequential operation: PCត:2> = PCត:2> + 1
  • Branch operation: PCត:2> = PCត:2> + 1 + SignExt[Imm16]
  • In either case: Instruction-Memory-Address = PCត:2> concat “00”

30

30

SignExt

30

16

imm16

“1”

30

30

Branch

Zero

Addrត:2>

Instruction

Memory

Addrə:0>

“00”

32

Instructionត:0>

Instruction᝿:0>

30

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