Print first 2 Fib values (0, 1) before starting These are hard-coded since they are starting values...no calculations required Enter MainLoop Loop and call subroutines to calculate each subsequent value in the sequence Exit the loop once all single-digit values in the sequence have been printed USE 3 subroutines calcNextFib Uses R1 and R2 to calc next value in Fibonacci sequence printNum Outputs single-digit number to the display printCommaSpace Outputs a comma and a spaceCalculate all the single-digit Fibonacci numbers in order Start with the first 2 values in the sequence (0, 1) Calculate the next value by adding together the two largest values Print each number in the sequence With a comma and space after each No comma after the last number Use LC-3 I/O device to print number, commas, and spaces NO numbers printed using Trap Routine should check ddr, dsr , load and store modify the code to work using ALL Guidelines For each Calculation: ; Fib2 = Fib1 + Fib2 ; Fib1 = previous Fib2 ; R0 used for PUTS messages ; R1 contains current Fib1 value ; R2 contains current Fib2 value ; R6 is loop counter for main loop ; R7 is not used by this program. Used by Simulate for TRAP and Subroutines .ORIG x3000 Setup LEA R0, Info PUTS ADD R6, R6, #5; Init Main Loop counter (loop 5 times) ;Print first 2 Fib values before starting ;----- Your Code Here -----; ;----- End Your Code Here -----; ;Loop and call subroutines to calculate each subsequent value in the sequence ;Exit the loop once all single-digit values in the sequence have been printed MainLoop ;----- Your Code Here -----; ;----- End Your Code Here -----; Done HALT ;----------------------------------- ;Subroutines ;----------------------------------- ;Uses R1 and R2 to calc next value in Fibonacci sequence ;When complete, Fib2 (R2) will contain the new Fib number ;and Fib1 (R1) will contain the previous value of Fib2 (R2) calcNextFib ;----- Your Code Here -----; ;----- End Your Code Here -----; RET ;Outputs single-digit number to the display ;R2 contains number to print printNum ;----- Your Code Here -----; ;----- End Your Code Here -----; RET ;Outputs a comma and a space ;No data is passed in and no data is returned printCommaSpace ;----- Your Code Here -----; ;----- End Your Code Here -----; RET ;End of Program ;Data Declarations------------- DSR .FILL xFE04 DDR .FILL xFE06 Info .STRINGZ "This program will print the first 6 characters of the Fibboncci Sequence\n" ASCIIOFSET .FILL x0030 NegASCIIOFSET .FILL xFFD0 ASCIINewline .FILL x000d ; Newline ascii code ASCIISpace .FILL x0020 ; Space ascii code ASCIIComma .FILL x002C ; Comma ascii code ; Memory slots for subrountines to store/restore registers ; You may or may not need to use all of these SaveR3 .BLKW 1 SaveR4 .BLKW 1 SaveR5 .BLKW 1 SaveR6 .BLKW 1 . .END

Print first 2 Fib values (0, 1) before starting These are hard-coded since they are starting values...no calculations required Enter MainLoop Loop and call subroutines to calculate each subsequent value in the sequence Exit the loop once all single-digit values in the sequence have been printed USE 3 subroutines calcNextFib Uses R1 and R2 to calc next value in Fibonacci sequence printNum Outputs single-digit number to the display printCommaSpace Outputs a comma and a spaceCalculate all the single-digit Fibonacci numbers in order Start with the first 2 values in the sequence (0, 1) Calculate the next value by adding together the two largest values Print each number in the sequence With a comma and space after each No comma after the last number Use LC-3 I/O device to print number, commas, and spaces NO numbers printed using Trap Routine should check ddr, dsr , load and store modify the code to work using ALL Guidelines For each Calculation: ; Fib2 = Fib1 + Fib2 ; Fib1 = previous Fib2 ; R0 used for PUTS messages ; R1 contains current Fib1 value ; R2 contains current Fib2 value ; R6 is loop counter for main loop ; R7 is not used by this program. Used by Simulate for TRAP and Subroutines .ORIG x3000 Setup LEA R0, Info PUTS ADD R6, R6, #5; Init Main Loop counter (loop 5 times) ;Print first 2 Fib values before starting ;----- Your Code Here -----; ;----- End Your Code Here -----; ;Loop and call subroutines to calculate each subsequent value in the sequence ;Exit the loop once all single-digit values in the sequence have been printed MainLoop ;----- Your Code Here -----; ;----- End Your Code Here -----; Done HALT ;----------------------------------- ;Subroutines ;----------------------------------- ;Uses R1 and R2 to calc next value in Fibonacci sequence ;When complete, Fib2 (R2) will contain the new Fib number ;and Fib1 (R1) will contain the previous value of Fib2 (R2) calcNextFib ;----- Your Code Here -----; ;----- End Your Code Here -----; RET ;Outputs single-digit number to the display ;R2 contains number to print printNum ;----- Your Code Here -----; ;----- End Your Code Here -----; RET ;Outputs a comma and a space ;No data is passed in and no data is returned printCommaSpace ;----- Your Code Here -----; ;----- End Your Code Here -----; RET ;End of Program ;Data Declarations------------- DSR .FILL xFE04 DDR .FILL xFE06 Info .STRINGZ "This program will print the first 6 characters of the Fibboncci Sequence\n" ASCIIOFSET .FILL x0030 NegASCIIOFSET .FILL xFFD0 ASCIINewline .FILL x000d ; Newline ascii code ASCIISpace .FILL x0020 ; Space ascii code ASCIIComma .FILL x002C ; Comma ascii code ; Memory slots for subrountines to store/restore registers ; You may or may not need to use all of these SaveR3 .BLKW 1 SaveR4 .BLKW 1 SaveR5 .BLKW 1 SaveR6 .BLKW 1 . .END

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Question

Print first 2 Fib values (0, 1) before starting
- These are hard-coded since they are starting values...no calculations required
Enter MainLoop
- Loop and call subroutines to calculate each subsequent value in the sequence
- Exit the loop once all single-digit values in the sequence have been printed
USE 3 subroutines
- calcNextFib Uses R1 and R2 to calc next value in Fibonacci sequence
- printNum Outputs single-digit number to the display
- printCommaSpace Outputs a comma and a spaceCalculate all the single-digit Fibonacci numbers in order
- Start with the first 2 values in the sequence (0, 1)
- Calculate the next value by adding together the two largest values
Print each number in the sequence
- With a comma and space after each
- No comma after the last number
Use LC-3 I/O device to print number, commas, and spaces
- NO numbers printed using Trap Routine
- should check ddr, dsr , load and store

modify the code to work using ALL Guidelines

For each Calculation:

; Fib2 = Fib1 + Fib2 ; Fib1 = previous Fib2

; R0 used for PUTS messages

; R1 contains current Fib1 value

; R2 contains current Fib2 value

; R6 is loop counter for main loop

; R7 is not used by this program. Used by Simulate for TRAP and Subroutines

.ORIG x3000

Setup

LEA R0, Info

PUTS

ADD R6, R6, #5; Init Main Loop counter (loop 5 times)

;Print first 2 Fib values before starting

;----- Your Code Here -----;

;----- End Your Code Here -----;

;Loop and call subroutines to calculate each subsequent value in the sequence

;Exit the loop once all single-digit values in the sequence have been printed

MainLoop

;----- Your Code Here -----;

;----- End Your Code Here -----;

Done

HALT

;----------------------------------- ;Subroutines ;-----------------------------------

;Uses R1 and R2 to calc next value in Fibonacci sequence

;When complete, Fib2 (R2) will contain the new Fib number

;and Fib1 (R1) will contain the previous value of Fib2 (R2)

calcNextFib

;----- Your Code Here -----;

;----- End Your Code Here -----;

RET

;Outputs single-digit number to the display

;R2 contains number to

print printNum

;----- Your Code Here -----;

;----- End Your Code Here -----;

RET

;Outputs a comma and a space

;No data is passed in and no data is returned

printCommaSpace

;----- Your Code Here -----;

;----- End Your Code Here -----;

RET

;End of Program

;Data Declarations-------------

DSR .FILL xFE04

DDR .FILL xFE06

Info .STRINGZ "This program will print the first 6 characters of the Fibboncci Sequence\n"

ASCIIOFSET .FILL x0030

NegASCIIOFSET .FILL xFFD0

ASCIINewline .FILL x000d ; Newline ascii code

ASCIISpace .FILL x0020 ; Space ascii code

ASCIIComma .FILL x002C ; Comma ascii code

; Memory slots for subrountines to store/restore registers

; You may or may not need to use all of these

SaveR3 .BLKW 1

SaveR4 .BLKW 1

SaveR5 .BLKW 1

SaveR6 .BLKW 1 .

.END

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