Assignment No. 02 Semester: Fall 2016 CS609 – System Programming

[Hira]

Assignment

Question 1                                                                                                                                                                              (05 Marks) Write Code of following in c. 1-      Connect interval timer to speaker and turned it on 2-      Turn off speaker by clearing least significant bits.   Question 2:                                                                                                                                            (10 Marks)   Write down a TSR program that disables the input of characters ‘b’ and ‘c’ from keyboard. Scan codes of  'b' and 'c' are given below:  ‘b’ = 0x30 ‘c’ = 0x2E.     NOTE: Do not worry about the output and just concentrate on logic. There should be no error in your program. Do not put any query on MDB about this assignment, if you have any query then email at [e-mail].

[Zarina Shah]

koi Borland softwer ka link he share kar do to thek wala version ho 

[Zarina Shah]

C language ka best software kn sa ha 

  us ka link be share kar do

[+ "Shamim MCS" +]

i facw same prob ... code error de rha ha ???

[maha mirza]

plzz koe solution bta dy is assignment ka......

[+ "Shamim MCS" +]

Connect interval timer to speaker and turned it on

Solution

#include
#include
voide main()
{
outportb (0x43,0xB4);
outportb (0x42,0xFF);
outportb (0x43,0x21);
outportb (0x61,inportb(0x61)| 3);
getch();
outportb (0x61,inportb(0x61)& 0xFC);
}

is it right ????

[Mishi jutt]

any one tell me

[Rashid Fayyaz(MCS 3rd)]

yae ap nay run kar k dakha hai?

[hameed bscs(8th semester)]

idea of question no 02:

#include

int main()
{
char line[150];
int i, j;
printf("Enter a string: ");
gets(line);

for(i = 0; line[i] != '\0'; ++i)
{
while (!( (line[i] == 'b' && line[i] == 'c') || (line[i] == 'B' && line[i] == 'C') || line[i] == '\0') )
{
for(j = i; line[j] != '\0'; ++j)
{
line[j] = line[j+1];
}
line[j] = '\0';
}
}
printf("Output String: ");
puts(line);
return 0;
}

[Muhammad Asim]

plz koi tu c me ans load kr dy plzzzzzzzzz

[Rashid Fayyaz(MCS 3rd)]

mujy tu yae nh maloom k header files konsi use karni hain

[Rashid Fayyaz(MCS 3rd)]

[Rashid Fayyaz(MCS 3rd)]

8 error arahy hain