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1 Prelab

  1. Using the instruction set provided in the Appendix 3.1.1, write a computer program to generate running lights. One way to accomplish this is to start with an 8-bit number 0000 0001 (where the one represents the LED that would be off). Then left shift that number once you have reached the end, jump back to the beginning of the program. Figure 2 shows the expected output at different time steps.
    Figure 2: The sequence at which the LEDs turn on or off. The empty rectangles with black boarder represent and LED in the off state.
    \includegraphics{running_light.eps} .
  2. Using the graphical method as shown in Section 3, design and build the entire computer.

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Last Modified 2009-11-10