
Database System Concepts
7th Edition
ISBN: 9780078022159
Author: Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher: McGraw-Hill Education
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Question
use 32 bit machinr only
![Compile and execute the following code with a GCC compiler and write down the output of the
code. Explain where those three printed values come from.
#include<stdio.h>
int main() {
}
unsigned long address = 0x6F477D30;
char buf [4];
printf("%d\n", sizeof (address));
buf [0] = address & 0x000000ff;
buf [1] = (address & 0x0000ff00) >> 8;
printf("0xx\n", buf[0]);
printf("0x%x\n", buf[1]);
Based on what you understand from #13, what code should be used to make the fourth byte of
buf be the high byte of address (6F)?
a. buf [3] = address & 0xff000000;
b. buf [3] =
c. buf [3] =
d. buf[4] =
(address & 0x00ff0000) >> 16;
(address & 0xff000000) >> 24;
(address & 0xff000000) >> 32;](https://content.bartleby.com/qna-images/question/6553e9a2-ab6c-4fa4-8011-219f0a936acb/14dae12b-6e93-4662-922a-4a5e1fe1f160/uvd7yt5_thumbnail.png)
Transcribed Image Text:Compile and execute the following code with a GCC compiler and write down the output of the
code. Explain where those three printed values come from.
#include<stdio.h>
int main() {
}
unsigned long address = 0x6F477D30;
char buf [4];
printf("%d\n", sizeof (address));
buf [0] = address & 0x000000ff;
buf [1] = (address & 0x0000ff00) >> 8;
printf("0xx\n", buf[0]);
printf("0x%x\n", buf[1]);
Based on what you understand from #13, what code should be used to make the fourth byte of
buf be the high byte of address (6F)?
a. buf [3] = address & 0xff000000;
b. buf [3] =
c. buf [3] =
d. buf[4] =
(address & 0x00ff0000) >> 16;
(address & 0xff000000) >> 24;
(address & 0xff000000) >> 32;
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