We simulated only the first six instructions: add $5, $2, $2 # 1 sll $2, $2, 2 # 2 add $5, $5, $5 # 3 fwd W (5) twice add $5, $2, $5 # 4 fwd M (5), W (2) lw $5, 0($5) # 5 fwd M (5) sll $2, $5, 5 # 6 stall, fwd W(5) 5 slt $3, $0, $0 # 7 nop slt $3, $0, $0 # 8 slt $3, $0, $0 # 9 slt $3, $0, $0 # 10 Trace: 0x00422820 0x00021080 0x00a52820 0x00452820 0x8ca50000 0x00051140 0x0000182a 0x0000182a 0x0000182a 0x0000182a