2.28.3 [15] <2.11> Rewrite the code above so that the code may operate correctly.
Be sure to avoid any race conditions.
Each entry in the following table has code and also shows the contents of various
registers. The notation “($s1)” shows the contents of a memory location pointed
to by register $s1. The assembly code in each table is executed in the cycle shown
on parallel processors with a shared memory space.
