Long description

Two stacks containing eight rows are shown here. It is numbered from bottom to top as follows. 300, 304, 308, 312, 316, 320, 324, 328, 332.

Figure a: Here the first four rows from the bottom are labeled fully executed and shaded, and the remaining four rows are labeled not executed. An arrow labeled P C points to row 316.

Figure b: Here the rows from bottom to top are given as follows. Fully executed, 80 percent executed, 60 percent executed, 20 percent executed, 35 percent executed, 40 percent executed, 10 percent executed, not executed. An arrow labeled P C points to row 316.