Chapter 3, Problem 2AYK

_____ is a CPU design technique in which instruction execution is divided into multiple stages and different instructions can execute in different stages simultaneously.

Most Intel CPUs use the __________, in which each memory address is represented by two integers.

P1:Given the following memory values and a one-address machine with an accumulator,whatvalues do the following instructions load into the accumulator?·Word 20 contains 40.·Word 30 contains 50.·Word 40 contains 60.·Word 50 contains 70.a.  LOAD IMMEDIATE 20b.  LOAD DIRECT 20c.  LOAD INDIRECT 20d.  LOAD IMMEDIATE 30e.  LOAD DIRECT 30f.   LOADINDIRECT 30

Imagine we have a small computer which contains a simplified version of a CPU and RAM. The CPU can execute a single program that is stored in the RAM, and while running the program it can access 3 memory locations: its internal register AL, and two RAM locations that we'll call address 1 and address 2. Since this is a simplified computer it is able to skip some of the steps to access memory that are in our textbook, but accessing RAM still takes longer than accessing AL. The only values this computer is capable of storing in memory are unsigned bytes (8 bit binary numbers), and when it starts running a program all 3 of its memory locations initially contain the value 00000000.  Here is a list of all of the instructions our imaginary computer can perform: Write [number] to AL This instruction takes the operand [number], which must be an 8-bit binary number, and puts it into AL. This overwrites whatever was in AL previously. It takes 3 cycles to complete: 1 cycle each to fetch, decode,…

Create a code (assembly language) that allows PIC18 microprocessor, which is connected to 7-segment display, to repeatedly count down from 100 to 00. The commands which are allowed are MOVLW, ADDLW, MOVWF, ADDWF, MOVFF, DECF, COMF, GOTO. No loops are allowed please. eg. of increment code: CLRF TRISCCOUNT EQU 0x25MOVLW 00HRND1MOVWF PORTCINCF PORTC, FMOVF PORTC, WDAWGOTO RND1

A fragment of code is given to compare text in the field alpha with a text in the field beta: .data alpha db   12 dup(?) beta db   ’abrakadabra’, 0 ; ::: .code ; :::       mov esi, 0       mov ecx, 12 ns:   mov dl, alpha[esi]       cmp dl, beta[esi]       jne wrong              ;=====MISSING====       loop ns ; ::: wrong: Choose missing instruction to insert in the code line marked by the comment “MISSING”.

Generate a listing file for the AddTwoSum program and write a description of the machine codebytes generated for each instruction. You might have to guess at some of the meanings of thebyte values.

Use the PEP/8 assembely machine language simulator to write a program that simulates the PEP/8 computer and instruction set for only the following instructions (the following instructions are in the image attached) Here are some specifics.   1.Use an array to represent the memory.   2.Use variables or arrays for the PEP8 registers. I recommend putting it all into a structure. I also recommend using an array of 16 bit values for A, X, PC, SP so that you can use the r bit from the instructions to point directly to A or X. You do NOT have to include the Status bits.

Question1: Multiple Choice : (please leave it to other tutors who can answer all my sub-question since this is my last question for this month)   1-If for some inputs, a procedure never terminates, the procedure lacks   a. computability b. definiteness c. finiteness d. scalability   2-The elements of the ISA for a particular type of CPU include   a. addressing modes b. data types c. instructions d. a and b e. a, b and c   Question 2: Perform the following logical operations and express your answers in hexadecimal notation.  x3487 AND x7254 xABCD or x3234 xF098 XOR x3344