-- part3a.asm
	lw   $1,w2($0)    -- Icache stall
	lw   $2,w3($0)
	add  $3,$1,$2     -- pipeline stall
	sub  $4,$1,$2
	sll  $5,$1,15     -- Icache stall
	srl  $6,$2,16
	cmpl $7,$3
	sw   $1,w4($0)
	addi $8,w1($5)    -- Icache stall
	lw   $15,w1($0)
	lw   $16,w2($0)  
	add  $17,$15,$16  -- $16 forwarded, stall 
	add  $18,$17,$17  -- $17 forwarded on both
	beq  $17,$18,lab1 -- one stall, no br
	lw   $9,w5($0)
	j    lab1
	lw   $1,w3($0)   -- branch slot, always
	lw   $12,w1      -- not executed
	lw   $13,w1      -- not executed
lab1:	beq  $2,$1,lab2  -- forward, does branch 
	lw   $11,w2($0)  -- always execute
	lw   $13,w2      -- not executed
	lw   $14,w2      -- not executed
lab2:	lw   $10,w6($0)
	j    lab2
	lw   $23,w5  -- run long enough to load
	lw   $22,w4      -- not executed
	nop
w1:	word 0x11111111
w2:	word 0x22222222
w3:	word 0x33333333
w4:	word 0x44444444
w5:	word 0x55555555
w6:	word 0x66666666
	end