ECE 265 Midterm Review: Key Topics and Quiz Grades Management
This document outlines the important details regarding the ECE 265 midterm review. It includes a brief on how the quiz 3 grades were handled due to an entry issue in Carmen, alongside a proposal for students regarding their quiz grades. The review also covers key content from lectures up to lecture 8, emphasizing architectural questions, addressing modes, and assembler instructions. Moreover, it details programming tasks related to adding values in memory locations, ensuring an understanding of overflow conditions in the 68HC11 architecture. Students are encouraged to review lecture slides, quizzes, and homework for exam preparation.
ECE 265 Midterm Review: Key Topics and Quiz Grades Management
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Presentation Transcript
ECE265 ECE 265 Midterm Review
Administrivia • The grade for quiz 3 was not entered into to Carmen before I handed them back. • I realize that the only fair way to handle this is … • A proposal • If you want your grade on quiz 3 to be included give it back to me. If you don’t wish to use it, you will simply have one less quiz. Of the quizzes you do have the low will still be dropped. ECE265
Midterm Review Overview • What is on the exam • Material up through the end of lecture 8 • Quiz review – as some questions on exam will be much like what was on quiz 3 and 4. • Quick highlights of the lectures • High level architectural questions such as how many ports, timers, etc. • Addressing modes – how is the effective address of the operand determined • The assembler instructions and their action. ECE265
Topics Covered • The 68HC11 architecture • Programmers Model • Addressing Modes • Basic Instructions • Short pieces of code ECE265
Know how to do this • Write a program to add the contents to location $C000 and location $C001. If overflow did not occur store the results at $C001. If overflow did occur, store a value of $FF at location $C001. ECE265
The start • Write a program to add the contents to location $C000 and location $C001. If overflow did not occur store the results at $C001. If overflow did occur store a value of $FF at location $C001. • LDAA $C000 Load one value into A • ADDA $C001 Add the second location ECE265
The branch • Write a program to add the contents to location $C000 and location $C001. If overflow did not occur store the results at $C001. If overflow did occur store a value of $FF at location $C001. • LDAA $C000 Load one value into A • ADDA $C001 Add the second location • BVC STORE Branch if overflow=0 • LDAA #$FF V=1 so load $FF • STORE STAA $C001 ECE265
Assignment • Study for the exam. • Look over the lecture slides. • Go over the quizes • Review the homework problems. ECE265
