Last time ...adding 3 numbers...

• What a mess this is...

  • lw $10,A(0) # $10 = a0
  • lw $3,A(4) # $3 = a1
  • add $10,$10,$3 # $10 = a0 + a1
  • lw $3,A(8) # $3 = a2
  • add $10,$10,$3 # $10 = a0 + a1+ a2
  • sw $10,A(12) # a3 gets $10

• Suppose 100 numbers to be added?

• Doesn’t generalise!

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