CE 433 Spring 2022
softCore Tutorial
Taylor Nakai
tsnakai@fortlewis.edu

Introduction:
In this homework, we were given the task of work with the workflow of SoC design using KCPSM6 and the Basys 3 board to use the switches to turn on/off the corresponding leds, implementing the square problem, adding a 0x13 to the leds, implementing the use of MASK, shift the switch input to the right by one bit, using a combination of jump, return, and load instructions, practice implementing multiple subroutines, using the 'compare' instruction instead of the 'test' instruction, and implementing a design to show the number of switches that are ON on the leds in binary notation.

Task 3:
In task 3, we were given the task to use the switches to turn on/off the corresponding leds. Figure 1 shows the code used to implement using the switches to turn on/off the corresponding leds. Figure 2 shows the demonstration using the switches to turn on/off the corresponding leds.


Figure 1. Code used to implement using the switches to turn on/off the corresponding leds.


Figure 2. Demonstration of the implementation of using the switches to turn on/off the corresponding leds.

Task 4:
In task 4, we were given the task to implement the square problem. Figure 3 shows the code used to implement the square problem. Figure 4 shows the demonstration implement the square problem.


Figure 3. Code used to implement the square problem.


Figure 4. Demonstration of the  square problem.

Task 5:
In task 5, we were given the task to adding a 0x13 to the leds. Figure 5 shows the code used to implement adding a 0x13 to the leds. Figure 6 shows the demonstration adding a 0x13 to the leds.


Figure 5. Code used to implement adding a 0x13 to the leds.


Figure 6. Demonstration of the adding a 0x13 to the leds.

Task 6:
In task 6, we were given the task to implement the use of MASK so that the first two leds remain on. Figure 7 shows the code used to implement the use of MASK so that the first two leds remain on. Figure 8 shows the demonstration implementing the use of MASK so that the first two leds remain on.


Figure 7. Code used to implement the use of MASK.


Figure 8. Demonstration of implementation ofthe use of MASK.

Task 7:
In task 7, we were given the task to use the shift the switch input to the right by one bit. Figure 9 shows the code used to implement using the shift the switch input to the right by one bit. Figure 10 shows the demonstration using the shift the switch input to the right by one bit.


Figure 9. Code used to implement shifting the switch input to the right by one bit.


Figure 10. Demonstration of shifting the switch input to the right by one bit.

Task 8:
In task 8, we were given the task to use a combination of jump, return, and load instructions. Figure 11 shows the code used to implement using a combination of jump, return, and load instructions. Figure 12 shows the demonstration using a combination of jump, return, and load instructions.


Figure 11. Code used to implementing a combination of jump, return, and load instructions.


Figure 12. Demonstration of the combination of jump, return, and load instructions.

Task 9:
In task 9, we were given the task to practice implementing multiple subroutines. Figure 13 shows the code used to implement practicing implementing multiple subroutines. Figure 14 shows the demonstration practicing implementing multiple subroutines.


Figure 13. Code used to implement the practice of implementing multiple subroutines.


Figure 14. Demonstration of the  practice of implementing multiple subroutines.

Task 10:
In task 10, we were given the task to use the 'compare' instruction instead of the 'test' instruction. Figure 15 shows the code used to implement using the 'compare' instruction instead of the 'test' instruction. Figure 16 shows the demonstration using the 'compare' instruction instead of the 'test' instruction.


Figure 15. Code used to implement using the 'compare' instruction instead of the 'test' instruction.


Figure 16. Demonstration of using the 'compare' instruction instead of the 'test' instruction.

Task 11:
In task 11, we were given the task to implement a design to show the number of switches that are ON on the leds in binary notation. Figure 17 shows the code used to implement a design to show the number of switches that are ON on the leds in binary notation. Figure 18 shows the demonstration implementing a design to show the number of switches that are ON on the leds in binary notation.


Figure 17. Code used to implementing a design to show the number of switches that are ON on the leds in binary notation.


Figure 18. Demonstration of implementing a design to show the number of switches that are ON on the leds in binary notation.

Discussion:
By completing this homwork, it allowed me to become more comfortable using the soft core PicoBlaze basics. I really enjoyed working with the PicoBlaze softcore as it was really interesting and beneficial learning the basics. I really liked this tutorial as it was something that I never have explored. Overall, I could see the use for this in industry and hope that I will be able to learn more. I look forward to the next!
...................................................................................................