Branch

Branch on equal

beq  $rs, $rt, offset

Requirements

Compare contents of 2 registers

Shift 16-bit offset left by 2 bits to get word address

Add shifted offset value to value of PC + 4 to get branch target address

Update PC with branch target if operands are equal (branch is taken)

Two operations: compare and add

Also modify instruction fetch datapath to allow PC to be updated with new value

Jump requires different address calculation

Replace lower 28 bits of PC with 26 bits from instruction, shifted left 2 bits

To be added later