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3. This program is for extra credit. Write a MARIE program that takes you name as input and outputs the string "Hello, yourname". Modify the pointer example from the .pdf Powerpoint slides so that string output is performed in a subroutine. The input to the subroutine will be the starting location of the string in memory. This function assumes that the string is null terminated (i.e., the last character in the string is Dec 000). The function should use a loop to access the characters which ends when the null terminator is accessed. Write another subroutine that will input a string by getting the individual characters of the string and storing them sequentially in memory. The input to the function will be the pointer to the first location for the string. The function should use a loop to input the characters and will end when the user enters the null terminator. When you input the characters, you can set the input mode to Unicode if you want to enter the actual letters, however, for non-printable characters like [space] and [null], you will need to switch the input mode to decimal or hex. You can always choose to enter the characters using their hex or decimal ASCII codes. There are numerous ASCII tables on the internet where you can look up the appropriate ASCII encodings for your characters. Lay out your memory so that the constant string comes last and is followed by a named location for your name variable (initialized to Dec 000). Your name will be stored at the very end of the program starting at this identifier. (Hint, switch the output mode to Unicode for display).

3. This program is for extra credit. Write a MARIE program that takes you name as input and outputs the string "Hello, yourname". Modify the pointer example from the .pdf Powerpoint slides so that string output is performed in a subroutine. The input to the subroutine will be the starting location of the string in memory. This function assumes that the string is null terminated (i.e., the last character in the string is Dec 000). The function should use a loop to access the characters which ends when the null terminator is accessed. Write another subroutine that will input a string by getting the individual characters of the string and storing them sequentially in memory. The input to the function will be the pointer to the first location for the string. The function should use a loop to input the characters and will end when the user enters the null terminator. When you input the characters, you can set the input mode to Unicode if you want to enter the actual letters, however, for non-printable characters like [space] and [null], you will need to switch the input mode to decimal or hex. You can always choose to enter the characters using their hex or decimal ASCII codes. There are numerous ASCII tables on the internet where you can look up the appropriate ASCII encodings for your characters. Lay out your memory so that the constant string comes last and is followed by a named location for your name variable (initialized to Dec 000). Your name will be stored at the very end of the program starting at this identifier. (Hint, switch the output mode to Unicode for display).

Database System Concepts
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
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3. This program is for extra credit. Write a MARIE program that takes you name as input and outputs the string "Hello, yourname". Modify the pointer example from the .pdf Powerpoint slides so that string output is performed in a subroutine. The input to the subroutine will be the starting location of the string in memory. This function assumes that the string is null terminated (i.e., the last character in the string is Dec 000). The function should use a loop to access the characters which ends when the null terminator is accessed. Write another subroutine that will input a string by getting the individual characters of the string and storing them sequentially in memory. The input to the function will be the pointer to the first location for the string. The function should use a loop to input the characters and will end when the user enters the null terminator. When you input the characters, you can set the input mode to Unicode if you want to enter the actual letters, however, for non-printable characters like [space] and [null], you will need to switch the input mode to decimal or hex. You can always choose to enter the characters using their hex or decimal ASCII codes. There are numerous ASCII tables on the internet where you can look up the appropriate ASCII encodings for your characters. Lay out your memory so that the constant string comes last and is followed by a named location for your name variable (initialized to Dec 000). Your name will be stored at the very end of the program starting at this identifier. (Hint, switch the output mode to Unicode for display).
Transcribed Image Text:3. This program is for extra credit. Write a MARIE program that takes you name as input and outputs the string "Hello, yourname". Modify the pointer example from the .pdf Powerpoint slides so that string output is performed in a subroutine. The input to the subroutine will be the starting location of the string in memory. This function assumes that the string is null terminated (i.e., the last character in the string is Dec 000). The function should use a loop to access the characters which ends when the null terminator is accessed. Write another subroutine that will input a string by getting the individual characters of the string and storing them sequentially in memory. The input to the function will be the pointer to the first location for the string. The function should use a loop to input the characters and will end when the user enters the null terminator. When you input the characters, you can set the input mode to Unicode if you want to enter the actual letters, however, for non-printable characters like [space] and [null], you will need to switch the input mode to decimal or hex. You can always choose to enter the characters using their hex or decimal ASCII codes. There are numerous ASCII tables on the internet where you can look up the appropriate ASCII encodings for your characters. Lay out your memory so that the constant string comes last and is followed by a named location for your name variable (initialized to Dec 000). Your name will be stored at the very end of the program starting at this identifier. (Hint, switch the output mode to Unicode for display).
< 5:37: Assembly Language Pro... Pointer Example ● • This is Example 4.4 from the textbook which demonstrates the use of the Loadl and Storel instructions to print a string • It is important to remember that at the assembly level, all I/O is character-based and only one character at a time can be sent to an output device Getch, Outp, One, Chptr, String, LoadI Chptr Skipcond 400 Jump Outp Halt Output Load Chptr Add One Store Chptr Jump Getch Hex 0001 Hex 00B Dec 072 Dec 101 Dec 108 Dec 108 Dec 111 Dec 032 Dec 119. Dec 111 Dec 114 Dec 108 Dec 100 Dec 033 Dec 000 /H /e /1 /1 / [space] /W /0 /r /1 /d /[null] LTE 100 D /Load the character found at /address Chptr /If AC = 0, skip next instruction /Otherwise, proceed with operation /Output the character /Move pointer to next character /Jump to "current" character /Pointer to "current" character /String definition starts here
Transcribed Image Text:< 5:37: Assembly Language Pro... Pointer Example ● • This is Example 4.4 from the textbook which demonstrates the use of the Loadl and Storel instructions to print a string • It is important to remember that at the assembly level, all I/O is character-based and only one character at a time can be sent to an output device Getch, Outp, One, Chptr, String, LoadI Chptr Skipcond 400 Jump Outp Halt Output Load Chptr Add One Store Chptr Jump Getch Hex 0001 Hex 00B Dec 072 Dec 101 Dec 108 Dec 108 Dec 111 Dec 032 Dec 119. Dec 111 Dec 114 Dec 108 Dec 100 Dec 033 Dec 000 /H /e /1 /1 / [space] /W /0 /r /1 /d /[null] LTE 100 D /Load the character found at /address Chptr /If AC = 0, skip next instruction /Otherwise, proceed with operation /Output the character /Move pointer to next character /Jump to "current" character /Pointer to "current" character /String definition starts here
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