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Compare Two Numbers and Activate Pins - Lab Assignment

This program compares two numbers stored in registers A and B. If A is greater than B, PA6 is activated; if they are equal, PA5 is activated; if A is less than B, PA4 is activated.

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Compare Two Numbers and Activate Pins - Lab Assignment

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  1. Selection – If statement

  2. Sum of two negative numbers is positive?

  3. AND

  4. Page 93

  5. CBA CMPA, CMPB

  6. Compare two numbers in A&B: CBA ;compare B to A (sub A-B) BEQ EQUAL ;label for code BMI NEGATIVE ;label for code do positive code here (A>B) BRA ENDIF EQUAL: do equal code here BRA ENDIF NEGATIVE: do negative code here (A-B is neg, so B>A) ENDIF:

  7. Lab Assignment • Write a program that will • Store two numbers register A and B • Compare A and B, if • A>B turn on PA6 • A=B turn on PA5 • A<B turn on PA4

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